* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.line-arcade-canvas,
.rabbit-arcade-canvas,
.chain-arcade-canvas,
.pizza-arcade-canvas,
.launch-arcade-canvas,
.cashier-arcade-canvas {
    display: block;
    width: min(100%, 440px);
    height: auto;
    margin: 1rem auto;
    border: 4px solid #38bdf8;
    border-radius: 14px;
    background: #082f49;
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.18), 0 14px 28px rgba(2, 6, 23, 0.3);
}

.line-arcade-question,
.rabbit-arcade-question,
.chain-arcade-question,
.pizza-arcade-question,
.launch-arcade-question {
    color: #172033 !important;
}

.line-arcade-question {
    background: linear-gradient(135deg, #67e8f9, #38bdf8);
}

.line-target-hint {
    display: block;
    margin-top: 0.35rem;
    font-size: 0.78rem;
    font-weight: 700;
}

.rabbit-arcade-question {
    background: linear-gradient(135deg, #fbbf24, #fb8500);
}

.chain-arcade-question {
    background: linear-gradient(135deg, #a78bfa, #6366f1);
}

.pizza-arcade-question {
    background: linear-gradient(135deg, #fb923c, #facc15);
}

.launch-arcade-question {
    background: linear-gradient(135deg, #38bdf8, #818cf8);
}

.line-arcade-controls,
.rabbit-arcade-controls,
.chain-arcade-controls,
.pizza-arcade-controls,
.launch-arcade-controls,
.cashier-arcade-controls {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.7rem;
    max-width: 440px;
    margin: 0 auto;
}

.line-arcade-controls button,
.rabbit-arcade-controls button,
.chain-arcade-controls button,
.pizza-arcade-controls button,
.launch-arcade-controls button,
.cashier-arcade-controls button {
    min-height: 54px;
    border: 0;
    border-radius: 14px;
    background: linear-gradient(135deg, #2563eb, #10b981);
    color: #fff;
    cursor: pointer;
    font: inherit;
    font-weight: 900;
}

.line-arcade-controls button:active,
.rabbit-arcade-controls button:active,
.chain-arcade-controls button:active,
.pizza-arcade-controls button:active,
.launch-arcade-controls button:active,
.cashier-arcade-controls button:active {
    transform: scale(0.97);
}

.cashier-arcade-controls {
    grid-template-columns: repeat(2, minmax(120px, 1fr));
    max-width: 430px;
}

.cashier-arcade-controls button {
    min-height: 54px;
    background: linear-gradient(135deg, #2563eb, #10b981);
    color: #fff;
    font-weight: 900;
}

.arcade-key-hint {
    margin: 0.5rem 0;
    color: #cbd5e1;
    font-size: 0.85rem;
    text-align: center;
}

@media (max-width: 700px) {

    .line-arcade-controls,
    .rabbit-arcade-controls,
    .chain-arcade-controls,
    .pizza-arcade-controls,
    .launch-arcade-controls,
    .cashier-arcade-controls {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

:root {
    --azul-principal: #1E40AF;
    --azul-claro: #3B82F6;
    --azul-cielo: #60A5FA;
    --celeste: #BAE6FD;
    --azul-muy-claro: #93C5FD;
    --aguamarina: #7FFFD4;
    --verde: #10B981;
    --amarillo: #FBBF24;
    --rosa-fuerte: #DB2777;
    --rosado: #EC4899;
    --rosado-claro: #F472B6;
    --rosado-muy-claro: #FCE7F3;
    --blanco: #FFFFFF;
    --gris-claro: #F3F4F6;
    --texto-oscuro: #1F2937;
    --texto-medio: #334155;
    --texto-suave: #475569;
    --panel-claro: rgba(255, 255, 255, 0.84);
    --acerca-fondo: linear-gradient(135deg, var(--aguamarina) 0%, var(--azul-cielo) 100%);
    --acerca-card-bg: linear-gradient(135deg, var(--azul-muy-claro) 0%, var(--rosado-muy-claro) 100%);
    --nav-height: 108px;
}

html {
    scroll-padding-top: calc(var(--nav-height) + 12px);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f0f8ff;
    /* Color de fondo similar a un cuaderno */
    background-image:
        linear-gradient(rgba(173, 216, 230, 0.4) 1px, transparent 1px),
        linear-gradient(90deg, rgba(173, 216, 230, 0.4) 1px, transparent 1px);
    background-size: 20px 20px;
    background-attachment: fixed;
    /* Mantiene el patrón fijo al hacer scroll */
    color: var(--texto-oscuro);
    line-height: 1.6;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    /* Evitar scroll horizontal por animaciones */
    position: relative;
}

body::before,
body::after {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

body::before {
    content: "★   ✦   ✎   🚀   ★   📐   ✦";
    color: rgba(30, 64, 175, 0.12);
    font-size: 1.6rem;
    letter-spacing: 3rem;
    line-height: 4.2rem;
    padding: 2rem;
    white-space: pre-wrap;
    animation: doodles-float 24s linear infinite;
}

body::after {
    content: "";
    background:
        radial-gradient(circle at 10% 20%, rgba(251, 191, 36, 0.18), transparent 12%),
        radial-gradient(circle at 85% 18%, rgba(244, 114, 182, 0.16), transparent 12%),
        radial-gradient(circle at 20% 78%, rgba(96, 165, 250, 0.14), transparent 14%),
        radial-gradient(circle at 78% 82%, rgba(127, 255, 212, 0.16), transparent 14%);
    animation: blobs-drift 18s ease-in-out infinite alternate;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
[role="button"]:focus-visible {
    outline: 3px solid var(--amarillo);
    outline-offset: 4px;
}

/* Navegación */
.navbar {
    background: linear-gradient(90deg, var(--aguamarina) 0%, var(--azul-principal) 40%, var(--rosado) 100%);
    color: var(--blanco);
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    flex-wrap: wrap;
    gap: 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo-title {
    font-size: 2rem;
    margin-bottom: 0.25rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.logo p {
    font-size: 0.9rem;
    opacity: 0.9;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    flex-wrap: wrap;
}

.nav-links a {
    color: var(--blanco);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    padding: 0.5rem 0.35rem;
    transition: all 0.3s ease;
    position: relative;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 999px;
}

.nav-links a:hover {
    color: var(--amarillo);
    /* Cambia el color del texto al pasar el ratón */
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.16);
}

.sound-toggle {
    border: 2px solid rgba(255, 255, 255, 0.65);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.16);
    color: var(--blanco);
    cursor: pointer;
    font: inherit;
    font-weight: 700;
    padding: 0.65rem 1rem;
    min-height: 44px;
}

.sound-toggle[aria-pressed="false"] {
    background: rgba(31, 41, 55, 0.26);
    color: rgba(255, 255, 255, 0.86);
}

/* Secciones */
.seccion {
    display: none;
    padding: clamp(1.5rem, 3vw, 3rem) clamp(1rem, 2.4vw, 2rem);
    min-height: calc(100dvh - var(--nav-height));
    animation: fadeIn 0.5s ease;
    border-radius: 15px;
    position: relative;
    z-index: 1;
    scroll-margin-top: calc(var(--nav-height) + 12px);
}

/* color distinct per section */
#inicio {
    background: linear-gradient(135deg, var(--aguamarina) 0%, var(--rosado-muy-claro) 100%);
}

#jugar {
    background: linear-gradient(135deg, var(--azul-muy-claro) 0%, var(--rosado-muy-claro) 100%);
}

#grados {
    background: linear-gradient(135deg, var(--azul-claro) 0%, var(--rosado-claro) 100%);
}

#grado-1-juegos {
    background: linear-gradient(135deg, var(--verde) 0%, var(--azul-cielo) 100%);
}

#grado-2-juegos {
    background: linear-gradient(135deg, #A7F3D0 0%, #93C5FD 55%, #FDE68A 100%);
}

#grado-3-juegos {
    background: linear-gradient(135deg, var(--azul-principal) 0%, var(--amarillo) 100%);
}

#guias {
    background: linear-gradient(135deg, var(--azul-claro) 0%, var(--rosado-muy-claro) 100%);
}

#tablas {
    background: linear-gradient(135deg, #d9f99d 0%, #bfdbfe 48%, #fbcfe8 100%);
}

#guia-1-contenido {
    background: linear-gradient(135deg, var(--azul-cielo) 0%, var(--rosado-claro) 100%);
}

#guia-2-contenido {
    background: linear-gradient(135deg, var(--verde) 0%, var(--rosado-muy-claro) 100%);
}

#guia-3-contenido {
    background: linear-gradient(135deg, var(--amarillo) 0%, var(--azul-claro) 100%);
}

#tecnologia {
    background: linear-gradient(135deg, #c4f1f9 0%, #dbeafe 45%, #fce7f3 100%);
}

#acerca {
    background: var(--acerca-fondo);
}

#soporte {
    background: linear-gradient(135deg, var(--rosado-claro) 0%, var(--aguamarina) 100%);
}

#creadores {
    background: linear-gradient(135deg, var(--verde) 0%, var(--rosado-claro) 100%);
}

.seccion.activa {
    display: block;
}

html:not(.app-mode) body.site-landing #jugar,
html:not(.app-mode) body.site-landing #grados,
html:not(.app-mode) body.site-landing #grado-1-juegos,
html:not(.app-mode) body.site-landing #grado-2-juegos,
html:not(.app-mode) body.site-landing #grado-3-juegos {
    display: none;
}

html.app-mode body.site-landing .seccion {
    display: none;
}

html.app-mode body.site-landing #jugar,
html.app-mode body.site-landing #grados,
html.app-mode body.site-landing #grado-1-juegos,
html.app-mode body.site-landing #grado-2-juegos,
html.app-mode body.site-landing #grado-3-juegos {
    display: block;
}

html.app-mode body.site-landing .seccion {
    display: none !important;
}

html.app-mode.app-grade-1 body.site-landing #grado-1-juegos,
html.app-mode.app-grade-2 body.site-landing #grado-2-juegos,
html.app-mode.app-grade-3 body.site-landing #grado-3-juegos {
    display: block !important;
}

html.app-mode body.site-landing .grado-content .btn-volver,
html.app-mode body.site-landing .grado-content .grade-theme-banner,
html.app-mode body.site-landing .grado-content .guia-grado,
html.app-mode body.site-landing .grado-content .progreso-grado-panel,
html.app-mode body.site-landing .grado-content .botones-navegacion {
    display: none !important;
}

html.app-mode body.site-landing .grado-content.grade-list-view .juegos-container {
    display: grid !important;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    max-width: 1100px;
    margin: 1rem auto;
}

html.app-mode body.site-landing .grado-content.grade-list-view .juego-card {
    display: flex !important;
    min-height: 92px;
    align-items: center;
    justify-content: center;
    margin: 0 !important;
    padding: 1rem !important;
    border-radius: 16px;
    cursor: pointer;
}

html.app-mode body.site-landing .grado-content.grade-list-view .juego-card h3 {
    margin: 0 !important;
    text-align: center;
    font-size: 1.1rem;
}

html.app-mode body.site-landing .grado-content.grade-list-view .juego-card .juego-contenido,
html.app-mode body.site-landing .grado-content.grade-list-view .juego-card .lesson-panel {
    display: none !important;
}

html.app-mode body.site-landing .grado-content.grade-detail-active .juegos-container {
    max-width: 920px;
    margin: 0 auto;
}

html.app-games body.site-landing .navbar,
html.app-games body.site-landing .app-home-link,
html.app-games body.site-landing .sound-toggle {
    display: none !important;
}

html.app-games body.site-landing .seccion {
    display: none !important;
}

html.app-games.app-grade-1 body.site-landing #grado-1-juegos,
html.app-games.app-grade-2 body.site-landing #grado-2-juegos,
html.app-games.app-grade-3 body.site-landing #grado-3-juegos {
    display: block !important;
    min-height: 100vh;
    padding: 1.5rem;
}

html.app-games body.site-landing .grado-content:not(.grade-detail-active)>h2,
html.app-games body.site-landing .grado-content:not(.grade-detail-active)>.juegos-container {
    display: block !important;
}

html.app-games body.site-landing .grado-content:not(.grade-detail-active)>.juegos-container .juego-card {
    display: flex !important;
    min-height: 74px;
    align-items: center;
    justify-content: center;
    margin: 0 !important;
    padding: 1rem !important;
}

html.app-games body.site-landing .grado-content:not(.grade-detail-active)>.juegos-container .juego-card h3 {
    margin: 0 !important;
    text-align: center;
}

html.app-games body.site-landing .grado-content:not(.grade-detail-active)>.juegos-container .juego-contenido,
html.app-games body.site-landing .grado-content:not(.grade-detail-active)>.juegos-container .lesson-panel {
    display: none !important;
}

.app-home-link {
    display: none;
}

.game-nav-link {
    display: none;
}

html.app-mode .app-home-link {
    display: list-item;
}

.demo-section {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
    gap: 2rem;
    align-items: center;
    max-width: 1100px;
    margin: 3rem auto;
    padding: clamp(1.5rem, 4vw, 3rem);
    border-radius: 24px;
    background: #102a43;
    color: var(--blanco);
    box-shadow: 0 18px 40px rgba(16, 42, 67, 0.2);
}

.demo-kicker,
.demo-label {
    color: var(--amarillo);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.8rem;
}

.demo-copy h2 {
    margin: 0.4rem 0 0.8rem;
    font-size: clamp(1.7rem, 4vw, 2.6rem);
}

.demo-copy p:last-child {
    color: rgba(255, 255, 255, 0.82);
}

.demo-game {
    padding: 1.5rem;
    border: 2px solid rgba(255, 255, 255, 0.18);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.1);
}

.demo-question {
    margin: 0.8rem 0 1rem;
    font-size: 1.5rem;
    font-weight: 800;
}

.demo-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.7rem;
}

.demo-option {
    min-height: 48px;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-radius: 10px;
    background: var(--blanco);
    color: var(--texto-oscuro);
    cursor: pointer;
    font: inherit;
    font-weight: 800;
}

.demo-option.demo-correct {
    background: #86efac;
    border-color: #22c55e;
}

.demo-option.demo-wrong {
    background: #fecaca;
    border-color: #ef4444;
}

.demo-feedback {
    min-height: 3.2rem;
    margin: 1rem 0;
    color: rgba(255, 255, 255, 0.88);
}

.demo-app-link {
    display: inline-block;
    text-decoration: none;
}

@media (max-width: 720px) {
    .demo-section {
        grid-template-columns: 1fr;
    }
}

.nivel-banner,
.nivel-panel {
    margin: 1.8rem 0;
    display: grid;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 24px;
    padding: 1.6rem;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
}

.nivel-banner h3,
.nivel-panel h4 {
    margin-bottom: 0.75rem;
    color: var(--texto-oscuro);
}

.nivel-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
}

.nivel-step {
    padding: 1rem;
    border-radius: 22px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), rgba(239, 68, 68, 0.12));
    text-align: center;
    box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.06);
    min-height: 190px;
}

.nivel-step img {
    width: 100%;
    max-width: 100px;
    height: auto;
    margin: 0 auto 0.85rem;
    border-radius: 18px;
    border: 3px solid rgba(255, 255, 255, 0.8);
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.08);
}

.nivel-step strong {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 1.05rem;
    color: var(--azul-principal);
}

.nivel-step span {
    color: var(--texto-medio);
}

.nivel-panel {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.nivel-tag {
    background: rgba(255, 255, 255, 0.72);
    border-radius: 18px;
    padding: 1rem 1.1rem;
    border: 1px solid rgba(255, 255, 255, 0.65);
    box-shadow: 0 14px 35px rgba(15, 23, 42, 0.06);
}

.nivel-tag span {
    display: block;
    color: var(--texto-suave);
    font-size: 0.95rem;
}

.nivel-tag strong {
    margin-top: 0.55rem;
    display: block;
    font-size: 1.2rem;
    color: var(--azul-principal);
}

.progress-bar {
    margin-top: 0.85rem;
    height: 12px;
    width: 100%;
    background: rgba(30, 64, 175, 0.1);
    border-radius: 999px;
    overflow: hidden;
    border: 1px solid rgba(30, 64, 175, 0.12);
}

.progress-fill {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--azul-claro), var(--rosado));
    border-radius: 999px;
    transition: width 0.45s ease;
}

.player-panel {
    display: grid;
    gap: 1.4rem;
    grid-template-columns: minmax(260px, 1.4fr) minmax(250px, 0.9fr);
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(30, 64, 175, 0.12);
    border-radius: 24px;
    padding: 1.4rem;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
}

@media (max-width: 860px) {
    .player-panel {
        grid-template-columns: 1fr;
    }
}

.player-profile {
    display: flex;
    align-items: center;
    gap: 1rem;
    justify-content: space-between;
}

.avatar-preview {
    width: 72px;
    height: 72px;
    border-radius: 24px;
    background: linear-gradient(135deg, var(--azul-claro), var(--rosado));
    display: grid;
    place-items: center;
    font-size: 2.4rem;
    color: #fff;
    box-shadow: 0 10px 24px rgba(44, 120, 246, 0.18);
}

.player-info {
    flex: 1;
    min-width: 0;
}

.player-info h3 {
    margin: 0 0 0.3rem;
    font-size: 1.3rem;
    color: var(--azul-principal);
}

.player-info p {
    margin: 0.25rem 0;
    color: var(--texto-medio);
    font-size: 0.96rem;
}

.player-summary,
.avatar-selection {
    display: grid;
    gap: 1rem;
}

.avatar-selection h4,
.player-summary h4 {
    margin: 0;
    color: var(--azul-principal);
    font-size: 1.05rem;
}

.avatar-name-input label {
    display: block;
    margin-bottom: 0.4rem;
    font-size: 0.95rem;
    color: var(--texto-medio);
}

#player-name-input {
    width: 100%;
    border: 1px solid rgba(30, 64, 175, 0.18);
    border-radius: 16px;
    padding: 0.9rem 1rem;
    font-size: 1rem;
    background: #fff;
    color: #1f2937;
}

.avatar-options {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.9rem;
}

.avatar-card {
    border: 1px solid rgba(30, 64, 175, 0.12);
    border-radius: 18px;
    padding: 0.9rem;
    background: #fff;
    color: var(--azul-principal);
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    display: grid;
    place-items: center;
}

.avatar-card:hover,
.avatar-card.selected {
    border-color: var(--azul-principal);
    box-shadow: 0 14px 35px rgba(30, 64, 175, 0.14);
    transform: translateY(-2px);
}

.avatar-card .avatar-emoji {
    font-size: 1.7rem;
    margin-bottom: 0.3rem;
    display: block;
}

.player-progress-summary {
    display: grid;
    gap: 0.75rem;
}

.player-progress-summary p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--texto-medio);
}

.player-progress-summary strong {
    color: var(--azul-principal);
}

.player-progress-description {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: center;
    font-size: 0.95rem;
    color: var(--texto-medio);
}

#player-progress-label {
    font-weight: 700;
    color: var(--azul-principal);
}

#numeros {
    background: linear-gradient(135deg, var(--rosado-claro) 0%, var(--azul-cielo) 100%);
}

.numeros-intro {
    margin-bottom: 1.4rem;
    padding: 1.2rem 1.4rem;
    background: rgba(255, 255, 255, 0.82);
    border-radius: 22px;
    border: 1px solid rgba(255, 255, 255, 0.7);
}

.numeros-panel {
    display: grid;
    gap: 1.4rem;
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
}

.numero-tarjeta {
    background: rgba(255, 255, 255, 0.94);
    border-radius: 28px;
    padding: 2rem;
    box-shadow: 0 20px 45px rgba(15, 23, 42, 0.1);
    text-align: center;
}

.numero-icono {
    font-size: 2.8rem;
    margin-bottom: 0.9rem;
}

.numero-display {
    display: block;
    font-size: clamp(4rem, 7vw, 6rem);
    font-weight: 800;
    color: var(--azul-principal);
    margin-bottom: 0.5rem;
}

.numero-palabra {
    font-size: 1.45rem;
    color: var(--texto-oscuro);
    font-weight: 700;
    margin-bottom: 1.1rem;
}

.numero-visual {
    min-height: 120px;
    display: grid;
    gap: 1rem;
    justify-content: center;
    align-items: center;
}

.numero-grupos,
.numero-unidades {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.45rem;
}

.numero-grupo {
    min-width: 52px;
    padding: 0.7rem 0.8rem;
    background: linear-gradient(135deg, #fde68a, #f59e0b);
    border-radius: 18px;
    color: #92400e;
    font-weight: 700;
    box-shadow: 0 10px 16px rgba(249, 115, 22, 0.18);
}

.numero-punto {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, #bfdbfe, #60a5fa);
    border-radius: 50%;
    color: white;
    font-size: 1rem;
}

.numero-info {
    margin-top: 1rem;
    color: var(--texto-medio);
    font-size: 1rem;
}

.numero-controles {
    display: grid;
    gap: 1rem;
}

.numero-botones {
    display: grid;
    gap: 0.9rem;
}

.numero-botones .btn-principal {
    width: 100%;
}

.numero-range-wrap {
    background: rgba(255, 255, 255, 0.82);
    border-radius: 22px;
    padding: 1rem 1.1rem;
    border: 1px solid rgba(255, 255, 255, 0.7);
}

.numero-range-wrap label {
    display: block;
    margin-bottom: 0.9rem;
    color: var(--texto-oscuro);
    font-weight: 600;
}

#numero-range {
    width: 100%;
}

.numero-input-wrap {
    background: rgba(255, 255, 255, 0.82);
    border-radius: 22px;
    padding: 1rem 1.1rem;
    border: 1px solid rgba(255, 255, 255, 0.7);
}

.numero-input-wrap label {
    display: block;
    margin-bottom: 0.9rem;
    color: var(--texto-oscuro);
    font-weight: 600;
}

#numero-input {
    width: 100%;
    padding: 0.5rem;
    border: 2px solid var(--azul-claro);
    border-radius: 12px;
    font-size: 1rem;
    text-align: center;
}

.tablas-intro {
    max-width: 880px;
    margin: 0 auto 2rem;
    background: rgba(255, 255, 255, 0.78);
    border: 2px solid rgba(255, 255, 255, 0.7);
    border-radius: 18px;
    padding: 1.2rem 1.5rem;
    box-shadow: 0 16px 34px rgba(15, 23, 42, 0.08);
    text-align: center;
}

.tablas-intro p {
    color: var(--texto-medio);
    font-size: 1.08rem;
    font-weight: 600;
}

.tablas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 1.25rem;
    max-width: 1180px;
    margin: 0 auto;
}

.tablas-actividades {
    display: grid;
    grid-template-columns: repeat(2, minmax(280px, 1fr));
    gap: 1.25rem;
    max-width: 1180px;
    margin: 0 auto 2rem;
    align-items: stretch;
}

.tabla-actividad {
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid rgba(255, 255, 255, 0.72);
    border-radius: 22px;
    box-shadow: 0 18px 34px rgba(15, 23, 42, 0.1);
    padding: 1.25rem;
    display: grid;
    grid-template-rows: auto 1fr;
    gap: 1rem;
    position: relative;
    overflow: hidden;
}

.tabla-actividad::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 8px;
    background: var(--tabla-acento, var(--azul-claro));
}

.tabla-actividad-reto {
    --tabla-acento: linear-gradient(90deg, #FBBF24, #F97316);
    background: linear-gradient(135deg, rgba(255, 251, 235, 0.96), rgba(255, 237, 213, 0.9));
}

.tabla-actividad-busqueda {
    --tabla-acento: linear-gradient(90deg, #06B6D4, #3B82F6);
    background: linear-gradient(135deg, rgba(236, 254, 255, 0.96), rgba(219, 234, 254, 0.9));
}

.tabla-actividad-completa {
    --tabla-acento: linear-gradient(90deg, #10B981, #EC4899);
    background: linear-gradient(135deg, rgba(220, 252, 231, 0.92), rgba(252, 231, 243, 0.9));
}

.tabla-actividad-completa {
    grid-column: 1 / -1;
}

.tabla-actividad-header {
    display: block;
    padding: 0.25rem 0 0;
    align-items: center;
    min-height: 82px;
}

.tabla-actividad h3 {
    color: var(--azul-principal);
    font-size: 1.35rem;
    margin-bottom: 0.25rem;
}

.tabla-actividad p {
    color: var(--texto-medio);
    font-weight: 600;
}

.tabla-juego {
    display: grid;
    gap: 0.85rem;
    align-content: start;
}

.tabla-actividad-reto .tabla-juego,
.tabla-actividad-busqueda .tabla-juego {
    grid-template-rows: auto auto minmax(32px, auto) auto auto;
}

.tabla-actividad-reto .btn-principal,
.tabla-actividad-busqueda .btn-principal {
    align-self: end;
}

.tabla-pregunta {
    min-height: 74px;
    display: grid;
    place-items: center;
    border-radius: 18px;
    background: linear-gradient(135deg, rgba(219, 234, 254, 0.9), rgba(252, 231, 243, 0.86));
    color: var(--texto-oscuro) !important;
    font-size: 1.55rem;
    font-weight: 900 !important;
    text-align: center;
    padding: 0.85rem;
}

.tabla-opciones {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.75rem;
}

.tabla-opciones-grandes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tabla-opcion {
    border: 2px solid transparent;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--azul-claro), var(--rosado));
    color: var(--blanco);
    cursor: pointer;
    font: inherit;
    font-size: 1.15rem;
    font-weight: 900;
    min-height: 54px;
    padding: 0.8rem;
    box-shadow: 0 12px 24px rgba(30, 64, 175, 0.16);
    transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.tabla-opcion:disabled {
    cursor: default;
}

.tabla-opcion:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 28px rgba(30, 64, 175, 0.18);
}

.tabla-opcion.correcto {
    background: #d1fae5;
    color: #065F46;
    border: 2px solid var(--verde);
}

.tabla-opcion.incorrecto {
    background: #fee2e2;
    color: #991B1B;
    border: 2px solid #f87171;
}

.tabla-feedback {
    min-height: 32px;
    font-weight: 800 !important;
    text-align: center;
}

.tabla-feedback.resultado-ok {
    color: #047857 !important;
}

.tabla-feedback.resultado-error {
    color: #B91C1C !important;
}

.tabla-puntos {
    color: var(--rosado) !important;
    font-weight: 900 !important;
    text-align: center;
}

.tabla-completa label {
    color: var(--texto-oscuro);
    font-weight: 800;
}

.tabla-repaso-lista {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.55rem;
    list-style: none;
    padding: 0;
}

.tabla-repaso-lista li {
    border-radius: 14px;
    background: rgba(219, 234, 254, 0.78);
    color: var(--texto-oscuro);
    font-weight: 850;
    padding: 0.65rem 0.75rem;
    text-align: center;
}

.tabla-repaso-lista li:nth-child(even) {
    background: rgba(252, 231, 243, 0.82);
}

.tabla-repaso-controles {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
}

.tabla-completa {
    grid-template-columns: minmax(260px, 0.9fr) minmax(300px, 1.1fr);
    column-gap: 1.25rem;
    align-items: start;
}

.tabla-completa label,
.tabla-completa .tabla-selector,
.tabla-completa .tabla-repaso-lista,
.tabla-completa .tabla-repaso-controles {
    grid-column: 1;
}

.tabla-completa .tabla-pregunta,
.tabla-completa .tabla-input-row,
.tabla-completa .tabla-feedback,
.tabla-completa .tabla-puntos {
    grid-column: 2;
}

.tabla-completa .tabla-pregunta {
    min-height: 110px;
}

.tabla-selector,
#tabla-completa-respuesta {
    width: 100%;
    border: 2px solid var(--azul-claro);
    border-radius: 14px;
    color: var(--texto-oscuro);
    font: inherit;
    font-weight: 700;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.95);
}

.tabla-input-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.75rem;
    align-items: center;
}

.tabla-card {
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid rgba(255, 255, 255, 0.72);
    border-radius: 18px;
    box-shadow: 0 18px 34px rgba(15, 23, 42, 0.1);
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.tabla-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 24px 42px rgba(15, 23, 42, 0.15);
}

.tabla-card h3 {
    color: var(--blanco);
    font-size: 1.35rem;
    padding: 0.95rem 1rem;
    text-align: center;
    background: linear-gradient(135deg, var(--azul-principal), var(--rosado));
}

.tabla-lista {
    list-style: none;
    display: grid;
    gap: 0.45rem;
    padding: 1rem;
}

.tabla-lista li {
    background: rgba(219, 234, 254, 0.72);
    border-radius: 12px;
    color: var(--texto-oscuro);
    font-size: 1.08rem;
    font-weight: 800;
    padding: 0.55rem 0.75rem;
    text-align: center;
}

.tabla-lista li:nth-child(even) {
    background: rgba(252, 231, 243, 0.78);
}

.tabla-1 h3,
.tabla-6 h3 {
    background: linear-gradient(135deg, var(--verde), var(--azul-claro));
}

.tabla-2 h3,
.tabla-7 h3 {
    background: linear-gradient(135deg, var(--azul-principal), var(--aguamarina));
}

.tabla-3 h3,
.tabla-8 h3 {
    background: linear-gradient(135deg, var(--rosado), var(--amarillo));
}

.tabla-4 h3,
.tabla-9 h3 {
    background: linear-gradient(135deg, #7C3AED, var(--azul-cielo));
}

.tabla-5 h3,
.tabla-10 h3 {
    background: linear-gradient(135deg, #F97316, var(--verde));
}

.juegos-container {
    display: grid;
    gap: 1.5rem;
    justify-items: center;
    width: 100%;
}

.juego-card {
    background: rgba(255, 255, 255, 0.92);
    border-radius: 24px;
    padding: 1.4rem;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.9);
    width: min(100%, 860px);
    max-width: 860px;
}

.grado-content .juegos-container {
    align-items: start;
}

.grado-content .grade-back-button {
    display: none;
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 50;
    border: none;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--azul-principal), var(--verde));
    color: #fff;
    font-weight: 800;
    font-size: 0.78rem;
    cursor: pointer;
    padding: 0.55rem 0.9rem;
    box-shadow: 0 10px 20px rgba(30, 64, 175, 0.18);
    width: fit-content;
    min-height: 36px;
    line-height: 1.2;
}

.grado-content .grade-back-button:hover {
    transform: translateY(-1px);
}

.grado-content .juegos-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.1rem;
}

.grado-content .juego-card {
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.grado-content .juego-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 30px rgba(15, 23, 42, 0.12);
}

.grado-content .juego-card.grade-detail-view {
    width: min(100%, 760px);
    margin: 0 auto;
    cursor: default;
}

.grado-content .juego-card.grade-detail-view .juego-contenido {
    display: grid !important;
}

.grado-content .juego-card.grade-detail-view .lesson-panel {
    display: block !important;
}

.grado-content .juego-card.game-hidden {
    display: none !important;
}

.grado-content.grade-list-view .juegos-container .juego-card .juego-contenido,
.grado-content.grade-list-view .juegos-container .juego-card .lesson-panel {
    display: none;
}

.grado-content.grade-detail-active .juegos-container {
    display: block;
}

.grado-content.grade-detail-active>h2,
.grado-content.grade-detail-active .grade-theme-banner,
.grado-content.grade-detail-active .guia-grado,
.grado-content.grade-detail-active .progreso-grado-panel,
.grado-content.grade-detail-active .botones-navegacion,
.grado-content.grade-detail-active>.btn-volver {
    display: none !important;
}

.navbar.grade-view-hidden {
    display: none !important;
}

body:has(.grado-content.grade-detail-active) {
    padding-top: 0 !important;
}

.grado-content.grade-detail-active {
    min-height: 100vh;
    height: auto;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    padding: 0 !important;
    margin: 0 !important;
    gap: 0;
    width: 100vw !important;
    max-width: 100vw !important;
    margin-left: 0 !important;
    overflow-y: auto;
    overflow-x: hidden;
    position: relative;
    left: 0;
    right: 0;
}

.grado-content.grade-detail-active>*:not(.juegos-container):not(.grade-back-button) {
    display: none !important;
}

.grado-content.grade-detail-active>.juegos-container,
.grado-content.grade-detail-active>.grade-back-button {
    display: flex !important;
    width: 100%;
    max-width: none;
    justify-content: center;
    align-items: center;
}

.grado-content.grade-detail-active>.grade-back-button {
    position: fixed;
    top: 1rem;
    left: 1rem;
}

.grado-content.grade-detail-active>.juegos-container {
    flex: 1;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    margin: 0 !important;
    padding: 0 !important;
    width: 100vw !important;
    max-width: 100vw !important;
    display: flex !important;
}

.grado-content.grade-detail-active .juego-card {
    width: min(100%, 860px) !important;
    max-width: 860px !important;
    margin: 0 auto !important;
    border-radius: 20px;
    min-height: 100vh;
    height: auto;
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
    padding: 1rem 1.2rem 1.2rem;
    overflow-y: auto;
    overflow-x: hidden;
    align-self: center;
}

.grado-content.grade-detail-active .juego-card .juego-contenido {
    width: 100% !important;
    max-width: 100% !important;
    flex: 1 1 auto;
    height: auto;
    min-height: 0;
    overflow: visible;
    display: flex;
    justify-content: center;
}

.grado-content.grade-detail-active .mini-game {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 0.9rem;
    height: auto;
    min-height: 0;
    overflow: visible;
    width: min(100%, 520px);
    margin: 0 auto;
    text-align: center;
}

.grado-content.grade-detail-active .mini-controls {
    margin-top: auto;
    padding-bottom: 0.35rem;
}

.grado-content.actividades-eliminadas .juegos-container,
.grado-content.actividades-eliminadas .mission-selector,
.grado-content.actividades-eliminadas .progreso-grado-panel {
    display: none;
}

.actividades-vacias {
    background: rgba(255, 255, 255, 0.88);
    border: 2px dashed rgba(30, 64, 175, 0.25);
    border-radius: 18px;
    color: var(--texto-oscuro);
    font-size: 1.15rem;
    font-weight: 800;
    margin: 1.5rem auto;
    max-width: 720px;
    padding: 1.2rem;
    text-align: center;
}

.mini-game-card {
    overflow: hidden;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(219, 234, 254, 0.9));
    border: 1px solid rgba(59, 130, 246, 0.18);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7), 0 20px 32px rgba(30, 64, 175, 0.12);
}

.mini-game {
    display: grid;
    gap: 1rem;
    align-content: start;
}

.mini-game-head,
.mini-options {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    align-items: center;
}

.mini-controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 0.75rem;
    justify-items: stretch;
    align-items: center;
    width: min(100%, 460px);
    margin: 0 auto;
    padding-bottom: 0.25rem;
}

.mini-game-head {
    justify-content: space-between;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.18), rgba(16, 185, 129, 0.2));
    border: 1px solid rgba(37, 99, 235, 0.16);
    border-radius: 16px;
    color: #102a43;
    font-weight: 900;
    padding: 0.85rem 1rem;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.mini-story,
.mini-question,
.mini-progress,
.cash-total {
    color: #102a43 !important;
    font-weight: 800 !important;
    text-align: center;
}

.mini-question {
    background: linear-gradient(135deg, rgba(125, 211, 252, 0.24), rgba(52, 211, 153, 0.18));
    border: 1px solid rgba(37, 99, 235, 0.12);
    border-radius: 16px;
    font-size: 1.2rem;
    padding: 0.9rem 1rem;
    margin: 0;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.35);
}

.cash-pieces {
    min-height: 2rem;
    margin: 0;
    padding: 0.65rem;
    border: 1px dashed rgba(59, 130, 246, 0.38);
    border-radius: 12px;
    color: #1e3a8a;
    font-weight: 800;
    text-align: center;
    background: rgba(255, 255, 255, 0.24);
}

.mini-controls button,
.mini-options button,
.mini-secondary,
.snake-cell,
.shape-token,
.tank {
    border: 0;
    border-radius: 16px;
    background: linear-gradient(135deg, #2563eb, #22c55e);
    color: var(--blanco);
    cursor: pointer;
    font: inherit;
    font-weight: 900;
    min-height: 52px;
    padding: 0.8rem 1rem;
    white-space: normal;
    text-align: center;
    line-height: 1.2;
    transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
    box-shadow: 0 10px 18px rgba(37, 99, 235, 0.25);
}

.mini-controls button,
.mini-options button {
    width: 100%;
    min-width: 120px;
}

.mini-controls button:hover,
.mini-options button:hover,
.mini-secondary:hover,
.snake-cell:hover,
.shape-token:hover,
.tank:hover {
    transform: translateY(-2px) scale(1.01);
    box-shadow: 0 12px 22px rgba(30, 64, 175, 0.18);
    filter: brightness(1.04);
}

.mini-secondary {
    background: var(--verde);
}

.snake-board {
    display: grid;
    grid-template-columns: repeat(4, minmax(68px, 1fr));
    gap: 0.7rem;
    max-width: 420px;
    margin: 0 auto;
    width: 100%;
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.3), rgba(15, 23, 42, 0.1));
    border: 2px solid rgba(148, 163, 184, 0.28);
    border-radius: 18px;
    padding: 0.8rem;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.snake-cell {
    aspect-ratio: 1;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(226, 232, 240, 0.9));
    border: 2px solid rgba(148, 163, 184, 0.35);
    color: #0f172a;
    font-size: 1.18rem;
    font-weight: 900;
    display: grid;
    place-items: center;
    box-shadow: inset 0 -4px 0 rgba(148, 163, 184, 0.15);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.snake-player {
    position: relative;
    background: linear-gradient(135deg, #22c55e, #10b981);
    color: #f8fafc;
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.18), 0 12px 16px rgba(16, 185, 129, 0.22);
    animation: snake-wiggle 1.1s ease-in-out infinite;
}

.snake-trail {
    background: linear-gradient(135deg, #34d399, #059669);
    color: #ecfdf5;
    transform: scale(0.82);
    box-shadow: 0 0 14px rgba(16, 185, 129, 0.5);
}

.snake-dot {
    font-size: 1.8rem;
    opacity: 0.9;
}

.snake-face {
    display: block;
    font-size: 2rem;
    line-height: 1;
    animation: snake-bob 0.65s ease-in-out infinite alternate;
}

.snake-target {
    background: linear-gradient(135deg, #fef08a, #fbbf24);
    border-color: #f59e0b;
    box-shadow: 0 0 0 3px rgba(251, 191, 36, 0.22), 0 0 22px rgba(251, 191, 36, 0.62);
    animation: target-pulse 1.2s ease-in-out infinite;
}

.snake-arcade-canvas {
    display: block;
    width: min(100%, 420px);
    height: auto;
    margin: 1rem auto;
    border: 4px solid #22c55e;
    border-radius: 14px;
    background: #101827;
    box-shadow: 0 0 0 3px rgba(134, 239, 172, 0.18), 0 14px 28px rgba(2, 6, 23, 0.35);
    image-rendering: pixelated;
}

.snake-arcade-target {
    background: linear-gradient(135deg, #fbbf24, #f97316);
    color: #172033 !important;
    border-color: rgba(255, 255, 255, 0.35);
}

.snake-arcade-controls {
    display: grid;
    grid-template-columns: repeat(3, 58px);
    grid-template-rows: repeat(2, 58px);
    gap: 0.5rem;
    justify-content: center;
    margin: 0.75rem auto 0;
}

.snake-arcade-controls button {
    min-height: 58px;
    border: 2px solid #475569;
    border-radius: 14px;
    background: #1e293b;
    color: #86efac;
    cursor: pointer;
    font: inherit;
    font-size: 1.5rem;
    font-weight: 900;
}

.snake-arcade-controls button:active,
.snake-arcade-controls button:focus-visible {
    background: #16a34a;
    color: #fff;
}

.snake-arcade-controls button:nth-child(1) {
    grid-column: 2;
    grid-row: 1;
}

.snake-arcade-controls button:nth-child(2) {
    grid-column: 1;
    grid-row: 2;
}

.snake-arcade-controls button:nth-child(3) {
    grid-column: 2;
    grid-row: 2;
}

.snake-arcade-controls button:nth-child(4) {
    grid-column: 3;
    grid-row: 2;
}

.monkey-arcade-canvas {
    display: block;
    width: min(100%, 420px);
    height: auto;
    margin: 1rem auto;
    border: 4px solid #fbbf24;
    border-radius: 14px;
    background: #102a43;
    box-shadow: 0 0 0 3px rgba(251, 191, 36, 0.18), 0 14px 28px rgba(2, 6, 23, 0.35);
}

.monkey-arcade-question {
    background: linear-gradient(135deg, #fbbf24, #fb8500);
    color: #172033 !important;
}

.monkey-arcade-controls {
    display: none;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.75rem;
    max-width: 420px;
    margin: 0 auto;
}

.monkey-arcade-controls button {
    min-height: 58px;
    border: 0;
    border-radius: 14px;
    background: linear-gradient(135deg, #fb8500, #fbbf24);
    color: #172033;
    cursor: pointer;
    font: inherit;
    font-weight: 900;
    box-shadow: 0 10px 18px rgba(251, 133, 0, 0.3);
}

.monkey-arcade-controls button:active,
.monkey-arcade-controls button:focus-visible {
    transform: translateY(2px) scale(0.98);
    background: #fef08a;
}

.shape-arcade-canvas {
    display: block;
    width: min(100%, 420px);
    height: auto;
    margin: 1rem auto;
    border: 4px solid #a78bfa;
    border-radius: 14px;
    background: #172554;
    box-shadow: 0 0 0 3px rgba(167, 139, 250, 0.2), 0 14px 28px rgba(2, 6, 23, 0.35);
}

.shape-arcade-target {
    background: linear-gradient(135deg, #a78bfa, #38bdf8);
    color: #172033 !important;
}

.shape-arcade-controls {
    display: none;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
    max-width: 420px;
    margin: 0 auto;
}

.shape-arcade-controls button {
    min-height: 56px;
    border: 0;
    border-radius: 14px;
    background: linear-gradient(135deg, #7c3aed, #38bdf8);
    color: #fff;
    cursor: pointer;
    font: inherit;
    font-size: 1.5rem;
    font-weight: 900;
}

@media (max-width: 700px) {
    .shape-arcade-controls {
        display: grid;
    }
}

@media (max-width: 700px) {
    .monkey-arcade-controls {
        display: grid;
    }
}

@keyframes snake-wiggle {

    0%,
    100% {
        transform: translateX(-2px) rotate(-1deg);
    }

    50% {
        transform: translateX(2px) rotate(1deg);
    }
}

@keyframes snake-bob {
    from {
        transform: translateY(2px) rotate(-5deg);
    }

    to {
        transform: translateY(-4px) rotate(5deg);
    }
}

@keyframes target-pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.06);
    }
}

.fruit-row {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 0.8rem;
    align-items: center;
    color: #047857;
    font-size: 2rem;
    font-weight: 900;
    text-align: center;
}

.shape-zone {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 0.75rem;
}

.shape-token {
    min-height: 72px;
}

.shape-circulo {
    border-radius: 999px;
    background: #2563EB;
}

.shape-cuadrado {
    background: #059669;
}

.shape-triangulo {
    background: #DC2626;
    clip-path: polygon(50% 0, 100% 100%, 0 100%);
    padding-top: 2rem;
}

.shape-rectangulo {
    background: #7C3AED;
}

.shape-token.caught {
    opacity: 0.55;
    transform: scale(0.96);
}

.number-line {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 1rem;
    align-items: center;
    max-width: 560px;
    margin: 0 auto;
    width: 100%;
}

.number-line strong {
    display: block;
    background: linear-gradient(90deg, var(--azul-claro), var(--verde));
    border-radius: 999px;
    color: var(--blanco);
    font-size: 1.4rem;
    padding: 0.8rem;
    text-align: center;
}

.logs button {
    background: linear-gradient(135deg, #92400E, #D97706);
}

.portals button {
    background: linear-gradient(135deg, #4338CA, #7C3AED);
}

.pizzas button {
    background: linear-gradient(135deg, #F59E0B, #EF4444);
}

.pizza-disk {
    display: inline-grid;
    place-items: center;
    background: #FEF3C7;
    border: 3px solid #92400E;
    border-radius: 999px;
    color: #92400E;
    min-height: 68px;
    min-width: 68px;
}

.tank-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 0.75rem;
}

.tank {
    display: grid;
    gap: 0.35rem;
    background: linear-gradient(135deg, #0891B2, #2563EB);
}

.tank span {
    font-size: 1.6rem;
}

.mini-result {
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    padding: 0.55rem 0.8rem;
    border-radius: 14px;
    font-weight: 900 !important;
    text-align: center;
}

.mini-ok {
    color: #047857 !important;
    background: #dcfce7;
    border: 2px solid #34d399;
}

.mini-bad {
    color: #B91C1C !important;
    background: #fee2e2;
    border: 2px solid #f87171;
}

.result-icon {
    display: inline-grid;
    place-items: center;
    flex: 0 0 2rem;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    color: #fff;
    font-size: 1.35rem;
    line-height: 1;
}

.mini-ok .result-icon {
    background: #059669;
}

.mini-bad .result-icon {
    background: #dc2626;
}

.mini-result strong {
    display: inline-block;
    margin-right: 0.25rem;
}

.mini-game-over {
    display: grid;
    justify-items: center;
    gap: 0.55rem;
    padding: 1rem;
    margin-top: 0.75rem;
    color: #7f1d1d;
    background: #fff1f2;
    border: 3px solid #e11d48;
    border-radius: 14px;
    text-align: center;
}

.mini-game-over[hidden] {
    display: none;
}

.mini-game-over strong {
    color: #be123c;
    font-size: 1.45rem;
    letter-spacing: 0.08em;
}

.mini-restart-button {
    min-height: 44px;
    padding: 0.65rem 1rem;
    border: 0;
    border-radius: 10px;
    background: #be123c;
    color: #fff;
    cursor: pointer;
    font: inherit;
    font-weight: 900;
}

.mini-restart-button:hover,
.mini-restart-button:focus-visible {
    background: #9f1239;
}

.grado-content {
    overflow: visible;
}

.grado-content .mission-selector {
    position: static;
    z-index: 3;
    padding: 1.05rem;
    margin: 0 auto 0.75rem;
    max-width: 980px;
}

.grado-content .juego-contenido {
    display: grid;
    gap: 0.75rem;
}

.grado-content .pregunta-grande {
    font-size: clamp(1.45rem, 2vw, 1.8rem);
    margin: 0.55rem 0;
    padding: 0.7rem;
}

.grado-content .problema-texto {
    font-size: clamp(0.98rem, 1.4vw, 1.1rem);
    margin: 0.55rem 0;
    padding: 0.7rem;
}

.grado-content .opciones-grid {
    gap: 0.55rem;
    margin: 0.55rem 0;
}

.grado-content .btn-respuesta {
    padding: 0.8rem 0.72rem;
    font-size: 0.98rem;
}

.grado-content .juego-card h3 {
    font-size: clamp(1.15rem, 1.8vw, 1.35rem);
}

@media screen and (max-width: 950px) {
    .grado-content .mission-selector {
        top: calc(var(--nav-height) + 0.5rem);
    }

    .grado-content .btn-respuesta {
        font-size: 1rem;
        padding: 0.9rem 0.8rem;
    }
}

/* Limitar altura de la tarjeta del juego para evitar scroll de página
   y permitir scroll interno solo en el contenido si es necesario. */
.grado-content .juego-card {
    box-sizing: border-box;
    max-height: none;
    overflow: visible;
    display: flex;
    flex-direction: column;
    padding: 1rem;
    width: min(100%, 760px);
    margin: 0 auto;
}

.grado-content .juego-card .juego-contenido {
    flex: 1 1 auto;
    max-height: 42vh;
    overflow-y: auto;
    padding-right: 6px;
    width: 100%;
}

.grado-content.grade-detail-active .juego-card .juego-contenido {
    flex: 1 1 auto;
    max-height: none;
    height: 100%;
    overflow: visible;
    padding-right: 0;
}

/* Ajustes para que el texto y opciones no ocupen demasiado espacio vertical */
.grado-content .pregunta-grande,
.grado-content .problema-texto {
    margin: 0.5rem 0;
    padding: 0.65rem;
}

.grado-content .opciones-grid {
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
}

/* Asegurar que los botones no sean excesivamente grandes en pantallas pequeñas */
@media screen and (max-width: 600px) {
    .grado-content .juego-card {
        padding: 0.9rem;
    }

    .grado-content .pregunta-grande {
        font-size: 1.6rem;
    }
}

/* Estilos de impresión específicos para guías */
@media print {
    body {
        background: #fff;
        color: #000;
    }

    .seccion {
        page-break-inside: avoid;
    }

    .guia-imagen {
        max-width: 100%;
        height: auto;
    }

    .lesson-panel,
    .lesson-tip,
    .botones-navegacion {
        display: block;
    }

    .btn-principal,
    .btn-volver,
    .lesson-guide-btn {
        display: none !important;
    }
}

/* Mejora visual de las guías dentro de las tarjetas de juego */
.lesson-panel {
    background: linear-gradient(180deg, #ffffff 0%, #fffdf6 100%);
    border-left: 4px solid var(--accent, #f59e0b);
    box-shadow: 0 6px 18px rgba(15, 23, 42, 0.06);
    padding: 14px 16px;
    margin-bottom: 12px;
    border-radius: 6px;
    transition: max-height 220ms ease, opacity 200ms ease;
    overflow: hidden;
}

.lesson-panel .lesson-intro {
    display: block;
}

.lesson-block h4 {
    font-size: 1rem;
    margin: 0 0 6px 0;
}

.lesson-block p {
    font-size: 0.98rem;
    line-height: 1.45;
    margin: 0 0 8px 0;
    color: #1f2937;
}

.lesson-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 10px
}

.lesson-tip {
    font-size: 0.95rem;
    color: #374151;
    margin: 0
}

.lesson-guide-btn {
    background: var(--accent, #f59e0b);
    color: #fff;
    border: none;
    padding: 8px 10px;
    border-radius: 6px;
    cursor: pointer
}

.lesson-toggle {
    background: transparent;
    color: var(--accent, #f59e0b);
    border: 1px solid rgba(0, 0, 0, 0.06);
    padding: 6px 8px;
    border-radius: 6px;
    cursor: pointer
}

/* Estado colapsado para poder ocultar la guía si el usuario lo desea */
.lesson-panel.collapsed {
    max-height: 42px;
    opacity: 0.98;
}

.lesson-panel.collapsed .lesson-intro {
    display: none
}

/* Asegurar legibilidad en móviles */
@media screen and (max-width: 700px) {
    .lesson-block h4 {
        font-size: 1.02rem
    }

    .lesson-block p {
        font-size: 1rem
    }

    .lesson-footer {
        flex-direction: column;
        align-items: flex-start
    }
}

.juego-card h3 {
    margin-bottom: 0.95rem;
}

.juego-contenido {
    display: grid;
    gap: 1rem;
}

.opciones-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 0.9rem;
}

.race-arena {
    display: grid;
    gap: 0.85rem;
}

.race-track {
    position: relative;
    width: 100%;
    min-height: 90px;
    border-radius: 24px;
    background: linear-gradient(90deg, rgba(219, 234, 254, 0.95), rgba(191, 219, 254, 0.95));
    border: 2px solid rgba(59, 130, 246, 0.35);
    overflow: hidden;
}

.race-car {
    position: absolute;
    top: 50%;
    left: 0%;
    transform: translate(0, -50%);
    font-size: 2.4rem;
    transition: left 0.8s ease;
}

.finish-line {
    position: absolute;
    top: 0;
    right: 0;
    width: 14px;
    height: 100%;
    background: repeating-linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0 12px, rgba(15, 23, 42, 0.2) 12px 24px);
}

.race-status {
    padding: 0.75rem 1rem;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(15, 23, 42, 0.08);
    color: var(--texto-oscuro);
    font-weight: 600;
}

.catch-arena {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    min-height: 90px;
    padding: 0.8rem;
    border-radius: 24px;
    background: linear-gradient(180deg, rgba(236, 253, 245, 0.95), rgba(187, 247, 208, 0.7));
    border: 1px solid rgba(16, 185, 129, 0.22);
}

.number-bubble {
    width: 2.3rem;
    height: 2.3rem;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(16, 185, 129, 0.18);
    font-size: 1.1rem;
}

.catch-status,
.map-status,
.guardian-status,
.treasure-status,
.ladder-status,
.castle-status {
    padding: 0.75rem 1rem;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(15, 23, 42, 0.08);
    color: var(--texto-oscuro);
    font-weight: 600;
}

.map-arena,
.guardian-arena,
.treasure-arena,
.ladder-arena {
    display: grid;
    gap: 0.85rem;
    padding: 0.95rem;
    border-radius: 24px;
    background: linear-gradient(180deg, rgba(248, 250, 252, 0.95), rgba(219, 234, 254, 0.9));
    border: 1px solid rgba(59, 130, 246, 0.22);
}

.map-path {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.75rem;
    border-radius: 18px;
    background: rgba(59, 130, 246, 0.08);
}

.map-dot {
    width: 2.2rem;
    height: 2.2rem;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: rgba(59, 130, 246, 0.14);
    font-size: 1rem;
}

.map-dot.completed {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.95), rgba(79, 70, 229, 0.75));
    color: #fff;
}

.guardian-header {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.guardian-shield {
    width: 3rem;
    height: 3rem;
    display: grid;
    place-items: center;
    border-radius: 18px;
    background: rgba(59, 130, 246, 0.12);
    font-size: 1.6rem;
}

.guardian-enemies {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    font-size: 1.5rem;
}

.guardian-enemy {
    display: inline-flex;
    width: 2.4rem;
    height: 2.4rem;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(248, 113, 113, 0.18);
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.guardian-enemy.defeated {
    opacity: 0.28;
    transform: scale(0.9);
}

.treasure-chest {
    width: 100%;
    min-height: 90px;
    display: grid;
    place-items: center;
    border-radius: 24px;
    background: linear-gradient(180deg, rgba(250, 204, 21, 0.15), rgba(245, 158, 11, 0.14));
    font-size: 2rem;
}

.magic-ladder {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.5rem;
}

.ladder-step {
    width: 100%;
    min-height: 2.6rem;
    border-radius: 16px;
    background: rgba(59, 130, 246, 0.12);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.45);
    transition: background 0.25s ease;
}

.ladder-step.active {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.9), rgba(6, 182, 212, 0.85));
}

.castle-arena {
    display: grid;
    gap: 1rem;
    padding: 0.95rem;
    border-radius: 24px;
    background: linear-gradient(180deg, rgba(249, 250, 251, 0.95), rgba(219, 234, 254, 0.9));
    border: 1px solid rgba(59, 130, 246, 0.22);
}

.castle-overview {
    display: grid;
    gap: 0.9rem;
}

.castle-wall {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 90px;
    border-radius: 24px;
    background: linear-gradient(180deg, #f8fafc, #dbeafe);
    border: 2px solid rgba(59, 130, 246, 0.3);
    box-shadow: inset 0 8px 16px rgba(15, 23, 42, 0.05);
}

.castle-tower {
    font-size: 2.5rem;
}

.castle-base {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 70%;
    height: 18px;
    background: rgba(15, 23, 42, 0.12);
    border-radius: 999px;
}

.battle-overview {
    display: grid;
    gap: 0.85rem;
}

.enemy-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    font-size: 1.6rem;
}

.enemy-icon {
    display: inline-flex;
    width: 2.5rem;
    height: 2.5rem;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(244, 114, 182, 0.15);
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.enemy-icon.defeated {
    opacity: 0.28;
    transform: scale(0.92);
}

.castle-health-wrap {
    display: grid;
    gap: 0.5rem;
    font-size: 0.95rem;
    color: var(--texto-oscuro);
}

.castle-health {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.45rem;
}

.castle-health-segment {
    width: 100%;
    height: 12px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.1);
    transition: background-color 0.25s ease;
}

.castle-health-segment.active {
    background: linear-gradient(90deg, #34d399, #10b981);
}

.castle-status {
    padding: 0.8rem 1rem;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(15, 23, 42, 0.08);
    color: var(--texto-oscuro);
    font-weight: 600;
}

.chat-area {
    display: grid;
    gap: 0.55rem;
    min-height: 170px;
    padding: 0.85rem;
    border-radius: 24px;
    background: linear-gradient(180deg, rgba(236, 253, 245, 0.95), rgba(190, 242, 194, 0.7));
    border: 1px dashed rgba(16, 185, 129, 0.35);
    overflow-y: auto;
}

.chat-bubble {
    max-width: 100%;
    padding: 0.85rem 1rem;
    border-radius: 20px;
    line-height: 1.4;
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.05);
}

.system-bubble {
    align-self: start;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.14), rgba(147, 197, 253, 0.2));
    color: #0f172a;
}

.user-bubble {
    align-self: end;
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.18), rgba(251, 146, 60, 0.25));
    color: #1f2937;
}

.chat-controls {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 0.6rem;
    align-items: center;
}

.chat-input {
    width: 100%;
    padding: 0.95rem 1rem;
    border: 2px solid rgba(15, 23, 42, 0.12);
    border-radius: 18px;
    background: #fff;
    color: #0f172a;
    font-size: 1rem;
}

.btn-listen {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.95), rgba(16, 185, 129, 0.95));
    color: #fff;
    border: none;
    border-radius: 18px;
    padding: 0.95rem 1rem;
    cursor: pointer;
    transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.btn-listen:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 28px rgba(30, 64, 175, 0.18);
}

.btn-respuesta,
.btn-opcion {
    background: linear-gradient(135deg, var(--azul-claro), var(--rosado));
    color: #fff;
    border: none;
    border-radius: 18px;
    box-shadow: 0 12px 24px rgba(30, 64, 175, 0.16);
    padding: 0.95rem 1rem;
    cursor: pointer;
    transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.btn-respuesta:hover,
.btn-opcion:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 28px rgba(30, 64, 175, 0.18);
}

.btn-respuesta.correcto {
    border: 2px solid var(--verde);
    background: #d1fae5;
    color: var(--texto-oscuro);
}

.btn-respuesta.incorrecto {
    border: 2px solid #f87171;
    background: #fee2e2;
    color: var(--texto-oscuro);
}

.juego-card.success-glow {
    box-shadow: 0 0 0 8px rgba(34, 197, 94, 0.18), 0 20px 45px rgba(16, 185, 129, 0.16);
}

.juego-card.shake {
    animation: shake 0.6s ease;
}

.juego-card.result-correct {
    border-color: #10b981;
}

.juego-card.result-incorrect {
    border-color: #ef4444;
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    20%,
    60% {
        transform: translateX(-10px);
    }

    40%,
    80% {
        transform: translateX(10px);
    }
}

@keyframes bounceIn {
    0% {
        transform: scale(0.8);
        opacity: 0;
    }

    50% {
        transform: scale(1.05);
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Sección Bienvenida */
.hero-section {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    padding: clamp(1.5rem, 4vw, 3rem);
    background:
        radial-gradient(circle at top left, rgba(255, 255, 255, 0.45), transparent 30%),
        linear-gradient(135deg, #66d1ff 0%, #8ab6ff 45%, #ff9dd1 100%);
    border-radius: 28px;
    margin-bottom: 3rem;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.12);
    flex-wrap: wrap;
    border: 4px solid rgba(255, 255, 255, 0.45);
}

.hero-emoji {
    font-size: 8rem;
    animation: float 3s ease-in-out infinite;
}

.hero-emoji img {
    display: block;
    border-radius: 26px;
    border: 6px solid rgba(255, 255, 255, 0.55);
    box-shadow: 0 15px 30px rgba(30, 64, 175, 0.18);
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }
}


.bienvenida {
    text-align: center;
    padding: 1rem;
    color: var(--blanco);
    flex: 1;
    min-width: 250px;
}

.bienvenida h1 {
    color: var(--blanco);
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
    animation: bounceIn 0.6s ease;
    text-shadow: 0 4px 14px rgba(15, 23, 42, 0.32);
}

.bienvenida p {
    color: var(--blanco);
    font-size: clamp(1rem, 2vw, 1.3rem);
    margin-bottom: 1rem;
    font-weight: 500;
    text-shadow: 0 3px 10px rgba(15, 23, 42, 0.28);
}

.mission-section {
    background: var(--panel-claro);
    border-radius: 24px;
    padding: 2.25rem;
    margin: 0 0 3rem;
    box-shadow: 0 12px 28px rgba(30, 64, 175, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.72);
}

.mission-header {
    text-align: center;
    max-width: 760px;
    margin: 0 auto 2rem;
}

.mission-kicker {
    display: inline-block;
    background: rgba(255, 255, 255, 0.9);
    color: var(--rosado);
    font-weight: 800;
    border-radius: 999px;
    padding: 0.4rem 0.9rem;
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-size: 0.85rem;
}

.mission-header h3 {
    color: var(--azul-principal);
    font-size: clamp(1.6rem, 3.2vw, 2.2rem);
    margin-bottom: 0.75rem;
}

.mission-header p {
    color: var(--texto-medio);
    font-size: 1.05rem;
}

.mission-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.mission-card {
    font: inherit;
    display: block;
    text-decoration: none;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.78));
    border-radius: 24px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 14px 30px rgba(15, 23, 42, 0.12);
    border: 3px solid rgba(255, 255, 255, 0.9);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: mission-pop 0.7s ease both;
}

.mission-card:nth-child(1) {
    background: linear-gradient(135deg, #ffd84d 0%, #ff8ac2 100%);
    animation-delay: 0.05s;
}

.mission-card:nth-child(2) {
    background: linear-gradient(135deg, #74e0ff 0%, #8d8dff 100%);
    animation-delay: 0.16s;
}

.mission-card:nth-child(3) {
    background: linear-gradient(135deg, #6df0a7 0%, #55b7ff 100%);
    animation-delay: 0.27s;
}

.mission-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 22px 38px rgba(15, 23, 42, 0.18);
}

.mission-badge {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--azul-principal);
    background: rgba(255, 255, 255, 0.45);
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    margin-bottom: 0.9rem;
}

.mission-emoji {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.mission-card h4 {
    color: #102a66;
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
}

.mission-card p {
    color: #17325f;
    margin-bottom: 1rem;
    font-weight: 600;
}

.mission-card .card-action {
    background: linear-gradient(90deg, var(--azul-principal), var(--rosado));
    color: var(--blanco);
    border: none;
    padding: 0.85rem 1.4rem;
    border-radius: 999px;
    font-weight: 700;
    display: inline-block;
    pointer-events: none;
}

.mission-card:hover .card-action {
    transform: scale(1.05);
    box-shadow: 0 8px 18px rgba(30, 64, 175, 0.22);
}

.reward-strip {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    overflow: visible;
}

.reward-pill {
    border: 0;
    font: inherit;
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    background: rgba(255, 255, 255, 0.85);
    padding: 0.8rem 1.05rem;
    border-radius: 999px;
    font-weight: 700;
    color: var(--azul-principal);
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.06);
    position: relative;
    overflow: visible;
    z-index: 2;
}

.reward-icon {
    font-size: 1.2rem;
}

.reward-burst {
    position: fixed;
    left: 0;
    top: 0;
    transform: translate(-50%, -50%);
    font-size: 2.2rem;
    pointer-events: none;
    animation: reward-burst 1200ms ease-out forwards;
    z-index: 9999;
    text-shadow: 0 8px 16px rgba(0, 0, 0, 0.18);
}

.reward-fall {
    position: fixed;
    top: -20px;
    left: 0;
    font-size: 1.8rem;
    pointer-events: none;
    z-index: 9998;
    animation: reward-fall 1600ms ease-in forwards;
    text-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.reward-flash {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9997;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.55) 0%, rgba(255, 255, 255, 0.18) 38%, rgba(255, 255, 255, 0) 70%);
    animation: reward-flash 550ms ease-out forwards;
}

/* Features Section -->
.features-section {
    margin: 3rem 0;
    content-visibility: auto;
    contain-intrinsic-size: 760px;
}

.features-section h3 {
    text-align: center;
    color: var(--azul-principal);
    font-size: 2rem;
    margin-bottom: 2rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.feature-card {
    background: linear-gradient(135deg, var(--azul-claro) 0%, var(--azul-cielo) 100%);
    color: var(--texto-oscuro);
    border-radius: 24px;
    padding: 2rem 1.5rem;
    text-align: center;
    box-shadow: 0 12px 26px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.7);
    cursor: pointer;
    position: relative;
}

/* Worlds / Mundos */
.worlds-section {
    margin: 1.6rem 0 2rem;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 18px;
    padding: 1.2rem;
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.75);
}

.worlds-section h3 {
    color: var(--azul-principal);
    margin-bottom: 0.6rem;
}

.worlds-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin-top: 0.75rem;
}

.world-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(250, 250, 250, 0.9));
    border-radius: 16px;
    padding: 1rem;
    text-align: center;
    box-shadow: 0 10px 22px rgba(15, 23, 42, 0.06);
    border: 2px solid rgba(255, 255, 255, 0.8);
    cursor: pointer;
    transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.world-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 34px rgba(15, 23, 42, 0.12);
}

.world-card .world-emoji {
    font-size: 2.25rem;
    margin-bottom: 0.5rem;
}

.world-card .world-meta {
    color: var(--texto-medio);
    font-weight: 700;
}

/* Destacados (nuevos demos) */
.destacados-section {
    margin: 1.25rem 0 1.75rem;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 14px;
    padding: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.7);
}

.destacados-section h3 {
    color: var(--azul-principal);
    margin-bottom: 0.6rem;
}

.destacados-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
}

.destacados-grid .juego-card {
    padding: 1rem;
    border-radius: 14px;
}

.destacados-grid .contador-visual {
    display: flex;
    gap: 0.45rem;
    flex-wrap: wrap;
    margin: 0.6rem 0;
}

.contador-visual .numero-punto {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--amarillo), var(--rosado));
    color: #fff;
    font-weight: 800;
}

/* Pistas */
.btn-pista {
    background: linear-gradient(135deg, #f59e0b, #f97316);
    color: #fff;
    border: none;
    border-radius: 12px;
    padding: 0.55rem 0.9rem;
    margin-left: 0.6rem;
    cursor: pointer;
}

.pista-text {
    margin-top: 0.5rem;
    font-style: italic;
    color: #334155;
    background: rgba(255, 255, 255, 0.6);
    padding: 0.45rem;
    border-radius: 8px;
    border: 1px dashed rgba(51, 65, 85, 0.08);
}

.feature-card:hover {
    transform: translateY(-12px) rotate(-1.5deg);
    box-shadow: 0 22px 38px rgba(0, 0, 0, 0.14);
    border-color: rgba(236, 72, 153, 0.45);
}

.feature-emoji {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
    animation: spin 4s linear infinite;
    filter: drop-shadow(0 8px 12px rgba(255, 255, 255, 0.45));
}

@keyframes spin {

    0%,
    100% {
        transform: rotate(0deg);
    }

    50% {
        transform: rotate(10deg);
    }
}

.feature-card h4 {
    color: var(--azul-principal);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.feature-card h4::before,
.benefit-item h5::before,
.grado-card h3::before,
.guia-card h5::before,
.acerca-card h3::before,
.creador-card h2::before {
    display: block;
    font-size: 1.6rem;
    line-height: 1;
    margin-bottom: 0.55rem;
}

.features-grid .feature-card:nth-child(1) h4::before {
    content: "🔢";
}

.features-grid .feature-card:nth-child(2) h4::before {
    content: "➕";
}

.features-grid .feature-card:nth-child(3) h4::before {
    content: "➖";
}

.features-grid .feature-card:nth-child(4) h4::before {
    content: "✖️";
}

.features-grid .feature-card:nth-child(5) h4::before {
    content: "➗";
}

.features-grid .feature-card:nth-child(6) h4::before {
    content: "🏆";
}

.feature-card p {
    color: var(--texto-medio);
    font-size: 0.95rem;
    line-height: 1.5;
}

.feature-1::before {
    content: '1️⃣';
    position: absolute;
    top: -10px;
    right: -10px;
    font-size: 1.5rem;
    opacity: 0.3;
}

.feature-2::before {
    content: '2️⃣';
    position: absolute;
    top: -10px;
    right: -10px;
    font-size: 1.5rem;
    opacity: 0.3;
}

.feature-1,
.feature-2,
.feature-3,
.feature-4,
.feature-5,
.feature-6 {
    position: relative;
}

/* Benefits Section */
.benefits-section {
    background: linear-gradient(135deg, rgba(147, 197, 253, 0.94) 0%, rgba(252, 231, 243, 0.96) 100%);
    border-radius: 20px;
    padding: 3rem 2rem;
    margin: 3rem 0;
    content-visibility: auto;
    contain-intrinsic-size: 620px;
    border: 1px solid rgba(255, 255, 255, 0.8);
}

.benefits-section h3 {
    text-align: center;
    color: var(--azul-principal);
    font-size: 2rem;
    margin-bottom: 2rem;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.benefit-item {
    text-align: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, #2563eb 0%, #db2777 100%);
    color: var(--blanco);
    border-radius: 20px;
    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.8);
    position: relative;
}

.benefit-item:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.15);
}

.benefit-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 1rem;
    filter: drop-shadow(0 6px 10px rgba(251, 191, 36, 0.35));
}

.benefit-item h5 {
    color: var(--blanco);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 10px rgba(15, 23, 42, 0.24);
}

.benefits-grid .benefit-item:nth-child(1) h5::before {
    content: "🎯";
}

.benefits-grid .benefit-item:nth-child(2) h5::before {
    content: "⚡";
}

.benefits-grid .benefit-item:nth-child(3) h5::before {
    content: "🚀";
}

.benefits-grid .benefit-item:nth-child(4) h5::before {
    content: "🌈";
}

.benefit-item p {
    color: rgba(255, 255, 255, 0.94);
    font-size: 0.95rem;
}

/* CTA Section */
.cta-section {
    text-align: center;
    background:
        linear-gradient(90deg, var(--azul-claro) 0%, var(--rosado) 100%);
    color: var(--blanco);
    border-radius: 20px;
    padding: 3rem 2rem;
    margin: 3rem 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    content-visibility: auto;
    contain-intrinsic-size: 320px;
}

.cta-section h3 {
    color: var(--blanco);
    font-size: 2rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.cta-section p {
    color: var(--blanco);
    font-size: 1.2rem;
    margin-bottom: 2rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

.btn-grande {
    padding: 1.5rem 3.5rem !important;
    font-size: 1.3rem !important;
    background: linear-gradient(90deg, var(--azul-claro), var(--rosado)) !important;
    color: var(--blanco) !important;
    font-weight: 800 !important;
}

/* Botones */
.btn-principal {
    background: linear-gradient(90deg, var(--azul-claro) 0%, var(--rosado) 100%);
    color: var(--blanco);
    border: none;
    padding: 1.2rem 3rem;
    font-size: 1.2rem;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 700;
    transition: all 0.3s ease;
    margin-top: 1.5rem;
    box-shadow: 0 5px 20px rgba(236, 72, 153, 0.3);
}

.btn-principal:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 10px 20px rgba(236, 72, 153, 0.5);
    filter: brightness(1.1);
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }

    100% {
        transform: scale(1);
    }
}

.btn-principal:active {
    transform: translateY(-1px);
}

button:active,
.btn-principal:active,
.btn-respuesta:active,
.btn-volver:active,
.grado-card .card-action:active,
.mission-card .card-action:active,
.opciones button:active {
    transform: scale(0.97);
    filter: brightness(0.98);
}

/* Botones pequeños */
.btn-pequeno {
    padding: 0.8rem 1.5rem !important;
    font-size: 1rem !important;
    margin-top: 0 !important;
    margin-left: 1rem;
}

/* Botones de navegación */
.botones-navegacion {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin: 3rem 0 2rem 0;
    padding: 2rem 0;
    border-top: 2px solid #E5E7EB;
}

/*Estructura de título con botón pequeño */
.guia-titulo-botones {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.guia-titulo-botones h3 {
    margin: 0;
    flex: 1;
}

/* Lista de consejos */
.lista-consejos {
    background: linear-gradient(135deg, var(--azul-muy-claro), var(--rosado-muy-claro));
    padding: 1.5rem 2rem;
    border-radius: 15px;
    margin: 1.5rem 0;
    list-style-position: inside;
    border-left: 6px solid var(--rosado);
}

.lista-consejos li {
    margin: 1rem 0;
    font-size: 1.1rem;
    line-height: 1.6;
    color: #17325f;
}

/* Sección Grados */
.grados-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
    align-items: stretch;
}

.grado-card {
    font: inherit;
    display: block;
    text-decoration: none;
    background: linear-gradient(135deg, #FFD1DC, #BDE0FE);
    /* Colores pastel (rosa y azul) */
    color: var(--texto-oscuro);
    border-radius: 30px;
    /* Bordes más redondeados */
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
    border: 3px solid rgba(255, 255, 255, 0.75);
}

.grado-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--azul-claro), var(--rosado));
}

.grado-card h3 {
    font-size: 1.8rem;
    margin: 1rem 0;
    color: var(--azul-principal);
}

.grados-container .grado-card:nth-child(1) h3::before {
    content: "🎈";
}

.grados-container .grado-card:nth-child(2) h3::before {
    content: "🎪";
}

.grados-container .grado-card:nth-child(3) h3::before {
    content: "🏆";
}

.grado-card p {
    color: var(--texto-medio);
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.grado-card:hover {
    transform: translateY(-20px) rotate(4deg);
    box-shadow: 0 30px 45px rgba(0, 0, 0, 0.25);
}

.grado-card:focus-visible {
    transform: translateY(-12px);
    box-shadow: 0 0 0 4px rgba(251, 191, 36, 0.35), 0 20px 35px rgba(0, 0, 0, 0.2);
}

.grado-card::after {
    content: '👾';
    /* Monstruito de los números */
    position: absolute;
    font-size: 4rem;
    bottom: -54px;
    right: 12px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    opacity: 0;
    filter: drop-shadow(0 8px 10px rgba(30, 64, 175, 0.25));
}

.grado-card:hover::after {
    transform: translateY(-60px) rotate(15deg);
    opacity: 1;
}

/* Guía Cards */
.guia-card {
    background: linear-gradient(135deg, var(--rosado-muy-claro) 0%, var(--azul-muy-claro) 100%);
    color: var(--texto-oscuro);
    border-radius: 15px;
    padding: 1.5rem;
    margin: 1.5rem 0;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    border-left: 5px solid var(--rosado);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.acerca-card,
.creador-card {
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.mission-card,
.reward-pill {
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.guia-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.15);
}

.guia-card h5 {
    color: var(--azul-principal);
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    margin-top: 0;
}

.guia-contenido-principal .guia-card:nth-of-type(1) h5::before {
    content: "📘";
}

.guia-contenido-principal .guia-card:nth-of-type(2) h5::before {
    content: "🧠";
}

.guia-contenido-principal .guia-card:nth-of-type(3) h5::before {
    content: "✨";
}

.guia-card p {
    color: var(--texto-medio);
    line-height: 1.6;
}

.grado-card .card-action {
    background: linear-gradient(90deg, var(--azul-principal), var(--rosado));
    color: var(--blanco);
    border: none;
    padding: 0.8rem 2rem;
    border-radius: 25px;
    display: inline-block;
    font-weight: 700;
    font-size: 1rem;
    transition: all 0.3s ease;
    pointer-events: none;
}

.grado-card:hover .card-action {
    transform: scale(1.05);
    box-shadow: 0 5px 20px rgba(30, 64, 175, 0.3);
}


/* Juegos Container */
.juegos-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
    align-items: start;
}

.mission-selector {
    display: grid;
    gap: 1rem;
    padding: 1.2rem;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(30, 64, 175, 0.14);
    box-shadow: 0 14px 30px rgba(15, 23, 42, 0.06);
}

.mission-selector-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--azul-principal);
}

.mission-selector-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 0.8rem;
}

.mission-selector-button {
    border: 1px solid rgba(30, 64, 175, 0.14);
    background: #fff;
    color: var(--azul-principal);
    border-radius: 16px;
    padding: 0.95rem 1rem;
    font-size: 0.95rem;
    font-weight: 700;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
    cursor: pointer;
}

.mission-selector-button:hover {
    transform: translateY(-1px);
    border-color: var(--azul-principal);
    box-shadow: 0 8px 18px rgba(30, 64, 175, 0.12);
}

.mission-selector-button.active {
    background: linear-gradient(135deg, var(--azul-claro), var(--rosado));
    color: #fff;
    border-color: transparent;
}

.mission-stepper {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 0.8rem;
    align-items: center;
}

.mission-stepper-status {
    justify-self: center;
    text-align: center;
    color: var(--texto-oscuro);
    font-size: 0.95rem;
    font-weight: 800;
}

.mission-stepper-current {
    color: var(--azul-principal);
}

.mission-stepper-button {
    border: 0;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--azul-principal), var(--verde));
    color: #fff;
    cursor: pointer;
    font: inherit;
    font-weight: 800;
    padding: 0.8rem 1rem;
}

.mission-stepper-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 18px rgba(30, 64, 175, 0.18);
}

.grade-theme-banner {
    display: flex;
    gap: 1rem;
    align-items: center;
    padding: 1rem 1.25rem;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(34, 197, 94, 0.18);
    margin-bottom: 1.25rem;
    box-shadow: 0 14px 28px rgba(15, 23, 42, 0.06);
}

.grade-theme-icon {
    width: 3rem;
    height: 3rem;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(168, 85, 247, 0.18));
    font-size: 1.5rem;
}

.grade-theme-banner strong {
    display: block;
    font-size: 1rem;
    color: var(--texto-oscuro);
}

.grade-theme-banner p {
    margin: 0.3rem 0 0;
    font-size: 0.95rem;
    color: rgba(15, 23, 42, 0.8);
}

.grade-theme-1 {
    border-color: rgba(59, 130, 246, 0.18);
}

.grade-theme-2 {
    border-color: rgba(236, 72, 153, 0.18);
}

.grade-theme-3 {
    border-color: rgba(34, 197, 94, 0.18);
}

.juego-card.active-game {
    transform: scale(1.02);
    border: 2px solid rgba(255, 255, 255, 0.85);
    box-shadow: 0 24px 40px rgba(15, 23, 42, 0.14);
}

.game-hidden {
    display: none !important;
}

.lesson-panel {
    display: grid;
    gap: 1rem;
    margin-bottom: 1.35rem;
}

.lesson-intro {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.9rem;
    align-items: stretch;
}

.lesson-block {
    border-radius: 18px;
    padding: 1rem;
    text-align: left;
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
    border: 2px solid rgba(255, 255, 255, 0.72);
}

.lesson-block h4 {
    font-size: 0.95rem;
    margin-bottom: 0.45rem;
    color: var(--azul-principal);
}

.lesson-block p {
    font-size: 0.95rem;
    line-height: 1.5;
    color: #243b53;
}

.lesson-learn {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(186, 230, 253, 0.95));
}

.lesson-how {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.92), rgba(252, 231, 243, 0.95));
}

.lesson-example {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.92), rgba(255, 243, 199, 0.96));
}

.lesson-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 1.1rem;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.78);
    border: 2px dashed rgba(30, 64, 175, 0.2);
}

.lesson-tip {
    margin: 0;
    text-align: left;
    font-size: 0.96rem;
    font-weight: 600;
    color: #4a1d45;
}

.lesson-guide-btn {
    background: linear-gradient(90deg, var(--azul-principal), var(--rosado));
    color: var(--blanco);
    border: none;
    border-radius: 999px;
    padding: 0.8rem 1.2rem;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
    box-shadow: 0 10px 22px rgba(30, 64, 175, 0.18);
}

.lesson-guide-btn:hover {
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 14px 24px rgba(30, 64, 175, 0.22);
}

.juego-contenido {
    text-align: center;
}

.pregunta-grande {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--azul-principal);
    margin: 1.5rem 0;
    padding: 1rem;
    background: linear-gradient(135deg, var(--azul-muy-claro), var(--rosado-muy-claro));
    border-radius: 15px;
}

.problema-texto {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--azul-principal);
    margin: 1.5rem 0;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--azul-muy-claro), var(--rosado-muy-claro));
    border-radius: 15px;
    line-height: 1.6;
}

.opciones-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.btn-respuesta {
    padding: 1rem;
    font-size: 1.2rem;
    border: 3px solid var(--azul-principal);
    background: var(--blanco);
    color: var(--azul-principal);
    border-radius: 15px;
    /* Bordes más redondeados */
    cursor: pointer;
    font-weight: 700;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.btn-respuesta:hover {
    background: var(--amarillo);
    color: var(--blanco);
    border-color: var(--amarillo);
    animation: gummy-bounce 0.5s ease;
    box-shadow: 0 0 20px var(--amarillo);
    /* Efecto de brillo */
}

button,
.btn-principal,
.mission-card .card-action,
.grado-card .card-action,
.btn-volver,
.lesson-guide-btn,
.opciones button {
    position: relative;
    overflow: hidden;
    transition: transform 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.25s ease, filter 0.25s ease, background-color 0.25s ease, border-color 0.25s ease;
}

.feature-card::after,
.benefit-item::after,
.grado-card::after,
.mission-card::after,
.reward-pill::after,
.guia-card::after,
.juego-card::after,
.acerca-card::after,
.creador-card::after,
.btn-respuesta::after,
.btn-principal::after,
.mission-card .card-action::after,
.grado-card .card-action::after,
.btn-volver::after,
.lesson-guide-btn::after,
.opciones button::after,
button::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    pointer-events: none;
    opacity: 0;
    box-shadow: inset 0 0 0 0 rgba(255, 255, 255, 0.9);
    transition: opacity 0.2s ease, box-shadow 0.25s ease;
}

.feature-card:hover::after,
.benefit-item:hover::after,
.grado-card:hover::after,
.mission-card:hover::after,
.reward-pill:hover::after,
.guia-card:hover::after,
.juego-card:hover::after,
.acerca-card:hover::after,
.creador-card:hover::after,
.btn-respuesta:hover::after,
.btn-principal:hover::after,
.mission-card:hover .card-action::after,
.grado-card:hover .card-action::after,
.btn-volver:hover::after,
.lesson-guide-btn:hover::after,
.opciones button:hover::after,
button:hover::after {
    opacity: 1;
    box-shadow: inset 0 0 0 4px rgba(255, 255, 255, 0.75);
}

.feature-card:hover,
.benefit-item:hover,
.grado-card:hover,
.mission-card:hover,
.reward-pill:hover,
.guia-card:hover,
.juego-card:hover,
.acerca-card:hover,
.creador-card:hover,
.btn-respuesta:hover,
.btn-principal:hover,
.mission-card:hover .card-action,
.grado-card:hover .card-action,
.btn-volver:hover,
.lesson-guide-btn:hover,
.opciones button:hover,
button:hover {
    animation: hover-identify 0.45s ease;
    cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='32' height='32' viewBox='0 0 32 32'%3E%3Ccircle cx='16' cy='16' r='13' fill='%23FBBF24'/%3E%3Ccircle cx='16' cy='16' r='8' fill='%23EC4899'/%3E%3Ccircle cx='16' cy='16' r='3' fill='white'/%3E%3C/svg%3E") 16 16, pointer;
}

.btn-respuesta.correcto {
    background: #10B981;
    color: var(--blanco);
    border-color: #10B981;
    animation: correctAnswer 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.btn-respuesta.incorrecto {
    background: #EF4444;
    color: var(--blanco);
    border-color: #EF4444;
    animation: wrongAnswer 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

@keyframes correctAnswer {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.2) rotate(5deg);
    }

    100% {
        transform: scale(1);
    }
}

@keyframes wrongAnswer {

    0%,
    100% {
        transform: translateX(0);
    }

    20% {
        transform: translateX(-15px) rotate(-5deg);
    }

    40% {
        transform: translateX(15px) rotate(5deg);
    }

    60% {
        transform: translateX(-15px) rotate(-5deg);
    }

    80% {
        transform: translateX(15px) rotate(5deg);
    }
}

.juego-card p[id^="resultado-"] {
    margin-top: 1rem;
    font-size: 1.2rem;
    font-weight: 700;
    min-height: 30px;
}

.juego-card p[id^="puntuacion-"] {
    color: var(--rosado);
    font-size: 1.1rem;
    margin-top: 1rem;
}

.voice-status {
    min-height: 1.4rem;
    margin: 0.45rem 0 0;
    color: var(--texto-suave);
    font-size: 0.9rem;
}

.arcade-guide-section {
    margin: 2rem 0;
    padding: 1.4rem;
    border: 2px solid rgba(59, 130, 246, 0.2);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.58);
}

.arcade-guide-kicker {
    margin: 0;
    color: var(--azul-principal);
    font-size: 0.82rem;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.arcade-guide-section>h4 {
    margin: 0.3rem 0 0.5rem;
}

.arcade-guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.9rem;
    margin-top: 1rem;
}

.arcade-guide-card {
    padding: 1rem;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
}

.arcade-guide-card h5 {
    margin: 0 0 0.55rem;
    color: var(--azul-principal);
    font-size: 1rem;
}

.arcade-guide-card p {
    margin: 0.45rem 0 0;
    color: var(--texto-suave);
    font-size: 0.92rem;
    line-height: 1.5;
}

.btn-volver {
    background: var(--azul-claro);
    color: var(--blanco);
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 700;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

.btn-volver:hover {
    background: var(--azul-principal);
    transform: translateX(-5px);
}

/* Contador Visual */
.contador-visual {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(40px, 1fr));
    gap: 0.8rem;
    margin: 2rem 0;
    padding: 2rem;
    background: var(--gris-claro);
    border-radius: 15px;
    max-height: 300px;
    overflow-y: auto;
}

.punto {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--azul-claro), var(--rosado));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--blanco);
    animation: popIn 0.3s ease;
}

@keyframes popIn {
    0% {
        transform: scale(0);
    }

    100% {
        transform: scale(1);
    }
}

#respuesta-contador {
    padding: 0.8rem 1rem;
    font-size: 1.1rem;
    border: 3px solid var(--azul-claro);
    border-radius: 10px;
    margin: 1rem 0;
    width: 120px;
    text-align: center;
}

#respuesta-contador:focus {
    outline: none;
    border-color: var(--rosado);
    background-color: var(--rosado-muy-claro);
}

.opciones {
    margin: 1rem 0;
}

.opciones button {
    background: var(--rosado);
    color: var(--blanco);
    border: none;
    padding: 0.8rem 2rem;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 700;
    transition: all 0.3s ease;
}

.opciones button:hover {
    background: var(--rosado-claro);
    transform: scale(1.1);
}

/* Sección Soporte */
#soporte {
    /* reuse seccion styles by default */
}

/* Sección Acerca de */
.tecnologia-contenido {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.tecnologia-card {
    background: linear-gradient(135deg, rgba(224, 242, 254, 0.95), rgba(240, 249, 255, 0.96));
    border-radius: 18px;
    padding: 2rem;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
    border-left: 5px solid rgba(96, 165, 250, 0.65);
    transition: all 0.3s ease;
}

.tecnologia-card.destacada {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, rgba(220, 252, 231, 0.95), rgba(236, 253, 245, 0.94));
    border-left-color: rgba(16, 185, 129, 0.65);
}

.tecnologia-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 14px 28px rgba(15, 23, 42, 0.12);
}

.tecnologia-card h3 {
    color: var(--azul-principal);
    font-size: 1.35rem;
    margin-bottom: 0.9rem;
    margin-top: 0;
}

.tecnologia-card p {
    color: var(--texto-medio);
    font-size: 1.02rem;
    line-height: 1.8;
    margin-bottom: 0.85rem;
}

.lista-tecnologia {
    margin: 0.9rem 0 0;
    padding-left: 1.3rem;
    color: var(--texto-medio);
}

.lista-tecnologia li {
    margin-bottom: 0.85rem;
    line-height: 1.65;
}

.tecnologia-actividades {
    grid-column: 1 / -1;
    display: grid;
    gap: 1.5rem;
    margin-top: 0.5rem;
    padding: 1.75rem;
    border-radius: 24px;
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.1), rgba(236, 72, 153, 0.08));
    border: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.55);
}

.tecnologia-actividades-header {
    text-align: center;
    max-width: 760px;
    margin: 0 auto 0.25rem;
}

.tecnologia-actividades-header h3 {
    color: var(--azul-principal);
    font-size: 1.65rem;
    margin-bottom: 0.55rem;
}

.tecnologia-actividades-header p {
    color: var(--texto-medio);
    font-size: 1.02rem;
    line-height: 1.7;
}

.tecnologia-voz-toggle {
    margin-top: 0.9rem !important;
    margin-left: 0 !important;
    background: linear-gradient(90deg, #2563eb, #0ea5e9) !important;
}

.tecnologia-actividad {
    grid-column: 1 / -1;
    border-left-width: 7px;
    box-shadow: 0 12px 26px rgba(15, 23, 42, 0.08);
}

.tecnologia-actividad-bienestar {
    background: linear-gradient(135deg, rgba(219, 234, 254, 0.98), rgba(239, 246, 255, 0.95));
    border-left-color: rgba(59, 130, 246, 0.55);
}

.tecnologia-actividad-seguridad {
    background: linear-gradient(135deg, rgba(220, 252, 231, 0.98), rgba(240, 253, 244, 0.95));
    border-left-color: rgba(16, 185, 129, 0.55);
}

.tecnologia-actividad-convivencia {
    background: linear-gradient(135deg, rgba(254, 242, 248, 0.98), rgba(250, 245, 255, 0.95));
    border-left-color: rgba(236, 72, 153, 0.55);
}

.tecnologia-actividad-semaforo {
    background: linear-gradient(135deg, rgba(254, 249, 195, 0.98), rgba(240, 253, 244, 0.95));
    border-left-color: rgba(234, 179, 8, 0.75);
}

.tecnologia-actividad-password {
    background: linear-gradient(135deg, rgba(224, 242, 254, 0.98), rgba(245, 243, 255, 0.95));
    border-left-color: rgba(14, 165, 233, 0.65);
}

.tecnologia-actividad-insignias {
    background: linear-gradient(135deg, rgba(255, 247, 237, 0.98), rgba(239, 246, 255, 0.95));
    border-left-color: rgba(249, 115, 22, 0.65);
}

.tecnologia-intro {
    font-weight: 600;
}

.tecnologia-quiz {
    margin-top: 1rem;
    padding: 1.4rem;
    background: rgba(255, 255, 255, 0.72);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(3px);
}

.tecnologia-pregunta {
    font-size: 1.2rem !important;
    font-weight: 700;
    color: var(--azul-principal) !important;
    line-height: 1.6 !important;
    margin-bottom: 1rem !important;
}

.tecnologia-opciones {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    margin: 1rem 0;
}

.tecnologia-btn {
    min-height: 64px;
    line-height: 1.45;
    text-align: left;
}

.tecnologia-semaforo,
.password-lab {
    margin-top: 1rem;
    padding: 1.4rem;
    background: rgba(255, 255, 255, 0.72);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.82);
}

.semaforo-controles {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.8rem;
    margin: 1rem 0;
}

.semaforo-btn {
    border: 0;
    border-radius: 999px;
    color: var(--blanco);
    cursor: pointer;
    font-weight: 800;
    min-height: 48px;
    padding: 0.8rem 1rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.semaforo-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(15, 23, 42, 0.14);
}

.semaforo-verde {
    background: #10B981;
}

.semaforo-amarillo {
    background: #F59E0B;
}

.semaforo-rojo {
    background: #EF4444;
}

.resultado-ok {
    color: #047857 !important;
}

.resultado-error {
    color: #B91C1C !important;
}

.password-lab label {
    display: block;
    color: var(--azul-principal);
    font-weight: 800;
    margin-bottom: 0.55rem;
}

.password-lab input {
    width: 100%;
    border: 2px solid rgba(59, 130, 246, 0.35);
    border-radius: 14px;
    color: var(--texto-oscuro);
    font: inherit;
    padding: 0.9rem 1rem;
}

.password-meter {
    height: 14px;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(148, 163, 184, 0.28);
    margin: 1rem 0 0.7rem;
}

.password-meter-fill {
    display: block;
    width: 0;
    height: 100%;
    border-radius: inherit;
    background: #EF4444;
    transition: width 0.25s ease, background-color 0.25s ease;
}

.password-meter-fill[data-score="2"] {
    background: #F59E0B;
}

.password-meter-fill[data-score="3"] {
    background: #3B82F6;
}

.password-meter-fill[data-score="4"] {
    background: #10B981;
}

.password-status {
    font-weight: 800;
}

.password-checks {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 0.6rem;
    list-style: none;
    margin-top: 1rem;
    padding: 0;
}

.password-checks li {
    border-radius: 999px;
    background: rgba(148, 163, 184, 0.18);
    color: var(--texto-medio);
    font-weight: 700;
    padding: 0.6rem 0.8rem;
}

.password-checks li::before {
    content: "○ ";
}

.password-checks li.check-ok {
    background: rgba(16, 185, 129, 0.16);
    color: #047857;
}

.password-checks li.check-ok::before {
    content: "✓ ";
}

.insignias-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 0.8rem;
    margin-top: 1rem;
}

.insignia {
    border: 2px dashed rgba(100, 116, 139, 0.35);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.64);
    color: var(--texto-suave);
    font-weight: 800;
    padding: 0.85rem;
    text-align: center;
}

.insignia.desbloqueada {
    border-style: solid;
    border-color: rgba(16, 185, 129, 0.6);
    background: linear-gradient(135deg, rgba(220, 252, 231, 0.95), rgba(219, 234, 254, 0.9));
    color: #065F46;
    box-shadow: 0 10px 20px rgba(16, 185, 129, 0.12);
}

.insignia.desbloqueada::before {
    content: "✓ ";
}

.tecnologia-resultado {
    min-height: 30px;
    font-weight: 700;
    margin-top: 0.75rem;
}

.tecnologia-puntuacion {
    color: var(--rosado) !important;
    font-weight: 700;
    margin-top: 0.5rem !important;
}

.tecnologia-nivel {
    color: var(--azul-principal) !important;
    font-weight: 700;
    margin-top: 0.35rem !important;
}

.acerca-contenido {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.contact-form {
    max-width: 500px;
    margin: 1rem auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-form input,
.contact-form textarea {
    padding: 0.8rem;
    border: 2px solid var(--azul-claro);
    border-radius: 10px;
    font-size: 1rem;
}

.contact-form button {
    align-self: flex-start;
}

#support-status {
    text-align: center;
    margin-top: 1rem;
    font-weight: 600;
    color: var(--azul-principal);
}

.acerca-card {
    background: var(--acerca-card-bg);
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border-left: 5px solid var(--rosado);
}

.acerca-card.principal {
    grid-column: 1 / -1;
    background: var(--acerca-card-bg);
    border-left-color: var(--rosado);
    padding: 2.5rem;
}

.acerca-card h3 {
    color: var(--azul-principal);
    font-size: 1.4rem;
    margin-bottom: 1rem;
    margin-top: 0;
}

.acerca-contenido .acerca-card:nth-child(1) h3::before {
    content: "📚";
}

.acerca-contenido .acerca-card:nth-child(2) h3::before {
    content: "🎯";
}

.acerca-contenido .acerca-card:nth-child(3) h3::before {
    content: "✨";
}

.acerca-contenido .acerca-card:nth-child(4) h3::before {
    content: "📊";
}

.acerca-contenido .acerca-card:nth-child(5) h3::before {
    content: "💡";
}

.acerca-contenido .acerca-card:nth-child(6) h3::before {
    content: "ℹ️";
}

.acerca-contenido .acerca-card:nth-child(7) h3::before {
    content: "ℹ️";
}

.precio-card {
    border-left-color: var(--verde);
    background: linear-gradient(135deg, rgba(167, 243, 208, 0.95), rgba(219, 234, 254, 0.96));
}

.precio-destacado {
    color: var(--azul-principal) !important;
    font-size: clamp(2rem, 4vw, 3rem) !important;
    font-weight: 900;
    line-height: 1.1 !important;
    margin-bottom: 1rem !important;
}

.precio-destacado span {
    color: var(--texto-medio);
    font-size: 1rem;
    font-weight: 800;
}

.acerca-card p {
    color: var(--texto-medio);
    line-height: 1.8;
    margin-bottom: 0.8rem;
    font-size: 1.05rem;
}

.lista-caracteristicas {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
}

.lista-caracteristicas li {
    padding: 0.8rem 0;
    border-bottom: 1px solid #E5E7EB;
    color: var(--texto-medio);
    line-height: 1.6;
}

.lista-caracteristicas li:last-child {
    border-bottom: none;
}

.lista-pasos {
    color: var(--texto-medio);
    line-height: 1.8;
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.lista-pasos li {
    margin-bottom: 1rem;
}

.info-tecnica {
    background: var(--acerca-card-bg);
    color: var(--texto-oscuro);
    border-left-color: var(--rosado);
}

.acerca-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.15);
}

/* Sección Creadores */
.creadores-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
    /* remove background to improve legibility */
    background: none;
    padding: 0;
}

.creador-card {
    background: linear-gradient(135deg, var(--azul-principal) 0%, var(--rosado) 100%);
    color: var(--blanco);
    /* ensure text is readable */
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border-top: 5px solid transparent;
}

.feature-card,
.benefit-item,
.grado-card,
.mission-card,
.reward-pill,
.guia-card,
.juego-card,
.acerca-card,
.creador-card {
    backface-visibility: hidden;
    transform: translateZ(0);
}

.guia-contenido-principal,
.acerca-contenido,
.creadores-container,
.contact-form {
    content-visibility: auto;
    contain-intrinsic-size: 700px;
}

.creador-card:nth-child(1) {
    border-top-color: var(--azul-claro);
}

.creador-card:nth-child(2) {
    border-top-color: var(--rosado);
}

.creador-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 18px 35px rgba(0, 0, 0, 0.2);
}

.creador-avatar {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.creador-avatar img {
    max-width: 100%;
    height: auto;
    border-radius: 18px;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
}

.creador-card h2,
.creador-card h3 {
    color: var(--blanco);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.creadores-container .creador-card:nth-child(1) h2::before {
    content: "👨‍💻";
}

.creadores-container .creador-card:nth-child(2) h2::before {
    content: "🧠";
}

.creador-card p {
    color: var(--blanco);
    margin-bottom: 0.5rem;
}

.creador-card .descripcion {
    color: var(--blanco);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-top: 1rem;
    font-style: italic;
}

.creditos {
    text-align: center;
    padding: 2rem;
    margin-top: 2rem;
    border-top: 2px solid rgba(30, 64, 175, 0.3);
    color: var(--texto-oscuro);
    max-width: 850px;
    margin-left: auto;
    margin-right: auto;
}

.creditos p {
    margin: 0.5rem 0;
    font-weight: 600;
}

/* Títulos de secciones */
.seccion>h2 {
    color: var(--azul-principal);
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 2rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.05);
    background: rgba(255, 255, 255, 0.78);
    padding: 0.75rem 1.4rem;
    border-radius: 18px;
    display: inline-block;
    width: fit-content;
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}

/* Responsive */
@media (max-width: 768px) {
    :root {
        --nav-height: 150px;
    }

    .navbar {
        flex-direction: column;
        gap: 1rem;
    }

    .logo-title {
        font-size: 1.5rem;
    }

    .nav-links {
        gap: 1rem;
        justify-content: center;
    }

    .nav-links a {
        font-size: 0.95rem;
    }

    .logo p {
        text-align: center;
    }

    .botones-navegacion {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
        padding-top: 1.5rem;
    }

    .botones-navegacion .btn-principal {
        width: 100%;
        max-width: 420px;
    }

    .hero-section {
        flex-direction: column;
        gap: 1.5rem;
        padding: 1.5rem;
    }

    .mission-section {
        padding: 1.5rem;
    }

    .reward-pill {
        justify-content: center;
        text-align: center;
    }

    .mission-header h3 {
        font-size: 1.8rem;
    }

    .hero-emoji {
        font-size: 5rem;
    }

    .hero-emoji img {
        width: min(100%, 220px);
        height: auto;
    }

    .bienvenida h1 {
        font-size: 2rem;
    }

    .bienvenida p {
        font-size: 1rem;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .feature-card {
        padding: 1.5rem 1rem;
    }

    .feature-emoji {
        font-size: 2rem;
    }

    .feature-card h4 {
        font-size: 1rem;
    }

    .feature-card p {
        font-size: 0.85rem;
    }

    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .acerca-contenido,
    .tecnologia-contenido,
    .creadores-container {
        grid-template-columns: 1fr;
    }

    .tecnologia-card,
    .acerca-card,
    .acerca-card.principal,
    .creador-card,
    .guia-contenido-principal {
        padding: 1.5rem;
    }

    .guia-contenido-principal p,
    .tecnologia-card p,
    .acerca-card p,
    .lista-pasos,
    .lista-caracteristicas li,
    .lista-tecnologia li {
        font-size: 1rem;
        line-height: 1.7;
    }

    .tecnologia-quiz {
        padding: 1.1rem;
    }

    .tabla-input-row {
        grid-template-columns: 1fr;
    }

    .tablas-actividades,
    .tabla-completa {
        grid-template-columns: 1fr;
    }

    .tabla-completa label,
    .tabla-completa .tabla-selector,
    .tabla-completa .tabla-repaso-lista,
    .tabla-completa .tabla-repaso-controles,
    .tabla-completa .tabla-pregunta,
    .tabla-completa .tabla-input-row,
    .tabla-completa .tabla-feedback,
    .tabla-completa .tabla-puntos {
        grid-column: 1;
    }

    .tecnologia-actividad {
        grid-column: 1 / -1;
    }

    .tecnologia-actividades {
        padding: 1.25rem;
    }

    .contact-form {
        max-width: 100%;
    }

    .contact-form button {
        align-self: stretch;
    }

    .cta-section {
        padding: 2rem 1rem;
    }

    .cta-section h3 {
        font-size: 1.5rem;
    }

    .cta-section p {
        font-size: 1rem;
    }

    .pregunta-grande {
        font-size: 2rem;
    }

    .grados-container {
        grid-template-columns: 1fr;
    }

    .juego-card {
        padding: 1.5rem;
    }

    .lesson-intro {
        grid-template-columns: 1fr;
    }

    .lesson-footer {
        flex-direction: column;
        align-items: stretch;
    }

    .lesson-guide-btn {
        width: 100%;
    }

    .seccion>h2 {
        font-size: 1.8rem;
        padding: 0.65rem 1.1rem;
    }

    .btn-principal {
        padding: 1rem 2rem;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    :root {
        --nav-height: 184px;
    }

    body {
        background-attachment: scroll;
    }

    body::before,
    body::after {
        opacity: 0.55;
    }

    .seccion {
        padding: 1.5rem 1rem;
    }

    .hero-section {
        padding: 1rem;
    }

    .mission-section,
    .benefits-section,
    .cta-section,
    .guia-grado {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .mission-grid {
        grid-template-columns: 1fr;
    }

    .mission-card,
    .grado-card,
    .guia-card,
    .tecnologia-card,
    .acerca-card,
    .creador-card,
    .juego-card {
        border-radius: 18px;
    }

    .reward-strip {
        flex-direction: column;
        align-items: stretch;
    }

    .reward-pill {
        width: 100%;
        justify-content: center;
    }

    .semaforo-controles,
    .password-checks,
    .insignias-grid {
        grid-template-columns: 1fr;
    }

    .tecnologia-semaforo,
    .password-lab {
        padding: 1rem;
    }

    .hero-emoji {
        font-size: 3rem;
    }

    .hero-emoji img {
        width: min(100%, 170px);
    }

    .bienvenida h1 {
        font-size: 1.5rem;
    }

    .bienvenida p {
        font-size: 0.9rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .feature-card {
        padding: 1rem;
    }

    .feature-emoji {
        font-size: 2rem;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .benefit-item {
        padding: 1rem;
    }

    .benefit-icon {
        font-size: 2rem;
        margin-bottom: 0.5rem;
    }

    .benefit-item h5 {
        font-size: 1rem;
    }

    .benefit-item p,
    .feature-card p,
    .mission-header p,
    .guia-grado,
    .tecnologia-pregunta,
    .contact-form input,
    .contact-form textarea {
        font-size: 0.95rem;
    }

    .cta-section {
        padding: 1.5rem 1rem;
    }

    .cta-section h3 {
        font-size: 1.3rem;
    }

    .cta-section p {
        font-size: 0.9rem;
    }

    .btn-grande {
        padding: 1rem 2rem !important;
        font-size: 1rem !important;
    }

    .contador-visual {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.5rem;
    }

    .punto {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }

    .pregunta-grande {
        font-size: 1.5rem;
    }

    .problema-texto {
        font-size: 1.05rem;
        line-height: 1.55;
        padding: 1rem;
    }

    .btn-respuesta {
        padding: 0.7rem;
        font-size: 1rem;
    }

    .btn-principal,
    .btn-volver,
    .lesson-guide-btn,
    .opciones button {
        width: 100%;
    }

    .lesson-block {
        padding: 0.8rem;
    }

    .lesson-block p,
    .lesson-tip {
        font-size: 0.9rem;
    }

    .opciones-grid {
        grid-template-columns: 1fr;
    }

    .tecnologia-opciones {
        grid-template-columns: 1fr;
    }

    .tabla-opciones,
    .tabla-opciones-grandes,
    .tabla-repaso-lista,
    .tabla-repaso-controles {
        grid-template-columns: 1fr;
    }

    .tabla-pregunta {
        font-size: 1.3rem;
        min-height: 66px;
    }

    .tecnologia-actividades-header h3 {
        font-size: 1.35rem;
    }

    .creador-card {
        padding: 1.5rem;
    }

    .creador-avatar img {
        width: min(100%, 220px);
    }

    .guia-contenido-principal {
        padding: 1.25rem 0.25rem;
    }

    .guia-contenido-principal h4 {
        font-size: 1.2rem;
    }

    .guia-contenido-principal p,
    .lista-consejos li,
    .tecnologia-card p,
    .lista-tecnologia li,
    .acerca-card p,
    .lista-caracteristicas li,
    .lista-pasos li,
    .creador-card p {
        font-size: 0.95rem;
        line-height: 1.65;
    }

    .contact-form input,
    .contact-form textarea {
        padding: 0.9rem;
    }

    .nav-links {
        justify-content: center;
        gap: 0.65rem 1rem;
    }

    .nav-links a {
        display: inline-block;
        padding: 0.4rem 0.2rem;
        font-size: 0.9rem;
    }

    .seccion>h2 {
        font-size: 1.45rem;
        line-height: 1.25;
        padding: 0.6rem 0.9rem;
    }
}

/* Guía de cada grado */
.guia-grado {
    background: rgba(255, 255, 255, 0.8);
    margin: 1rem 0;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-style: italic;
    color: #333;
}

/* Sección de guías global */
.guia-seccion {
    background: linear-gradient(135deg, var(--rosado-muy-claro) 0%, var(--celeste) 100%);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    margin-bottom: 1rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.guia-seccion h3 {
    color: var(--azul-principal);
    margin-bottom: 0.5rem;
}

.guia-seccion p {
    margin: 0;
    color: var(--texto-oscuro);
    line-height: 1.4;
}

.guia-nav {
    text-align: center;
    margin: 1rem 0 2rem;
}

.guia-nav a {
    color: var(--azul-principal);
    text-decoration: none;
    font-weight: 600;
    margin: 0 0.5rem;
}

.guia-nav a:hover {
    color: var(--rosado);
}

.guia-imagen {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 0.75rem 0;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

/* Estilos para secciones de guía */
.guia-contenido-principal {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.guia-contenido-principal h4 {
    color: var(--azul-principal);
    font-size: 1.4rem;
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    padding: 0.35rem 0 0.35rem 0.85rem;
    border-left: 5px solid var(--rosado);
    background: rgba(255, 255, 255, 0.42);
    border-radius: 10px;
}

.guia-contenido-principal p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--texto-oscuro);
    margin-bottom: 1rem;
}

.guia-seccion iframe,
.guia-seccion video {
    display: block;
    width: 100%;
    max-width: 480px;
    margin: 0.75rem 0;
    border: none;
    border-radius: 8px;
}


/* estilos de impresión */
@media print {
    @page {
        margin: 14mm;
    }

    * {
        print-color-adjust: exact;
        -webkit-print-color-adjust: exact;
    }

    body {
        background: white;
        color: var(--texto-oscuro);
    }

    body * {
        visibility: hidden;
    }

    /* Mostrar solo la guía activa */
    .seccion.activa,
    .seccion.activa * {
        visibility: visible;
    }

    .seccion.activa {
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
        min-height: auto;
        padding: 0;
        background: white !important;
        border-radius: 0;
        box-shadow: none;
        animation: none;
    }

    /* Ocultar elementos innecesarios para impresión */
    .btn-principal,
    .nav-links,
    .btn-volver,
    .btn-respuesta,
    .btn-opcion,
    .botones-navegacion {
        display: none !important;
    }

    /* Asegurar que el contenido sea visible */
    .guia-contenido-principal {
        visibility: visible;
        max-width: 100%;
        padding: 0;
        background: white;
    }

    .seccion.activa>h2 {
        display: block;
        margin: 0 0 14px;
        padding: 12px 16px;
        color: var(--azul-principal);
        background: linear-gradient(135deg, var(--celeste), var(--rosado-muy-claro));
        border-radius: 12px;
        text-align: center;
        box-shadow: none;
    }

    .guia-contenido-principal h4 {
        margin-top: 14px;
        page-break-after: avoid;
    }

    .guia-contenido-principal p,
    .lista-consejos li,
    .guia-card p {
        font-size: 11.5pt;
        line-height: 1.5;
    }

    .guia-imagen {
        max-width: 520px;
        margin: 12px auto;
        box-shadow: none;
    }

    /* Mejorar presentación para impresión */
    h2,
    h3,
    h4 {
        page-break-after: avoid;
    }

    .guia-card {
        page-break-inside: avoid;
        box-shadow: none;
        border: 1px solid rgba(30, 64, 175, 0.18);
        margin-bottom: 12px;
    }

    .lista-consejos {
        page-break-inside: avoid;
    }
}

/* Efecto Gominola para botones de respuesta */
@keyframes gummy-bounce {
    0% {
        transform: scale(1);
    }

    30% {
        transform: scale(1.15);
    }

    50% {
        transform: scale(0.9) rotate(-3deg);
    }

    70% {
        transform: scale(1.05);
    }

    100% {
        transform: scale(1);
    }
}


/* Efecto Gummy para todos los elementos interactivos */
.gummy-hover {
    transition: transform 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.25s ease, filter 0.25s ease;
}

.gummy-hover:hover {
    transform: scale(1.08);
    filter: drop-shadow(0 0 14px rgba(251, 191, 36, 0.55));
    box-shadow: 0 0 0 6px rgba(255, 255, 255, 0.18);
    animation: gummy-bounce 0.55s ease;
}

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation: none !important;
        transition: none !important;
        scroll-behavior: auto !important;
    }
}

@media (prefers-reduced-data: reduce) {

    body::before,
    body::after {
        display: none;
    }
}

@keyframes hover-identify {
    0% {
        transform: translateY(0) scale(1);
    }

    35% {
        transform: translateY(-4px) scale(1.03);
    }

    65% {
        transform: translateY(-1px) scale(1.01);
    }

    100% {
        transform: translateY(0) scale(1);
    }
}

@keyframes reward-burst {
    0% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.35);
    }

    20% {
        opacity: 1;
        transform: translate(calc(-50% + var(--burst-x, 0px) * 0.25), calc(-50% + var(--burst-y, -20px) * 0.25)) scale(1.15);
    }

    100% {
        opacity: 0;
        transform: translate(calc(-50% + var(--burst-x, 0px)), calc(-50% + var(--burst-y, -90px))) scale(1.65) rotate(var(--burst-rotate, 12deg));
    }
}

@keyframes reward-fall {
    0% {
        opacity: 0;
        transform: translateY(-10px) rotate(0deg) scale(0.8);
    }

    15% {
        opacity: 1;
    }

    100% {
        opacity: 0;
        transform: translateY(75vh) rotate(var(--fall-rotate, 120deg)) scale(1.2);
    }
}

@keyframes reward-flash {
    0% {
        opacity: 0;
        transform: scale(0.96);
    }

    20% {
        opacity: 1;
        transform: scale(1);
    }

    100% {
        opacity: 0;
        transform: scale(1.05);
    }
}

@keyframes mission-pop {
    0% {
        opacity: 0;
        transform: translateY(24px) scale(0.9);
    }

    60% {
        opacity: 1;
        transform: translateY(-6px) scale(1.03);
    }

    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes doodles-float {
    0% {
        transform: translateY(0) translateX(0);
    }

    50% {
        transform: translateY(-14px) translateX(6px);
    }

    100% {
        transform: translateY(10px) translateX(-8px);
    }
}

@keyframes blobs-drift {
    0% {
        transform: translateY(0) scale(1);
    }

    100% {
        transform: translateY(-10px) scale(1.04);
    }
}

.creador-card h2::before {
    content: none !important;
    display: none !important;
}