/* ═══════════════════════════════════════════
   FUENTES (alojadas en la propia web, licencia SIL OFL 1.1 en assets/fonts/)
   Solo juego latino: cubre español e inglés (á, é, ñ, ¿, ¡…)
   ═══════════════════════════════════════════ */
@font-face {
    font-family: 'Nunito';
    font-style: normal;
    font-weight: 200 1000;
    font-display: swap;
    src: url('../fonts/nunito-latin-variable.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
    font-family: 'Poppins';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url('../fonts/poppins-latin-600.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
    font-family: 'Poppins';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('../fonts/poppins-latin-700.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ═══════════════════════════════════════════
   VARIABLES & RESET
   ═══════════════════════════════════════════ */
:root {
    /* Colores principales - profesional con toques amigables */
    --primary: #4F46E5;
    --primary-dark: #4338CA;
    --primary-light: #818CF8;
    --accent: #F59E0B;
    --accent-light: #FCD34D;

    /* Colores educativos/amigables */
    --edu-red: #EF4444;
    --edu-orange: #F97316;
    --edu-yellow: #FBBF24;
    --edu-green: #10B981;
    --edu-blue: #3B82F6;
    --edu-purple: #A855F7;

    /* Grises */
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;

    /* Superficies y texto */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F9FAFB;
    --text-primary: #111827;
    --text-secondary: #6B7280;
    --border-color: #E5E7EB;

    /* Tipografía */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Nunito', sans-serif;

    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Bordes */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;

    /* Transiciones */
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

/* Las anclas (#contacto…) no quedan tapadas por la barra fija */
section[id],
main {
    scroll-margin-top: 80px;
}

/* Foco visible y consistente al navegar con teclado */
:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 3px;
    border-radius: 4px;
}

.skip-link {
    position: fixed;
    top: -100px;
    left: 1rem;
    z-index: 2000;
    padding: 0.75rem 1.25rem;
    background: var(--primary);
    color: white;
    font-weight: 700;
    border-radius: var(--radius-md);
}

.skip-link:focus {
    top: 1rem;
}

/* Que el atributo hidden gane siempre a display de clases como .btn */
[hidden] {
    display: none !important;
}

body {
    font-family: var(--font-body);
    color: var(--text-primary);
    background: var(--bg-primary);
    line-height: 1.6;
    transition: background 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    height: auto;
}

/* ═══════════════════════════════════════════
   CONTAINER & LAYOUT
   ═══════════════════════════════════════════ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-primary);
}

p {
    color: var(--text-secondary);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
}

.section-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: #EEF2FF;
    color: var(--primary-dark);
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* ═══════════════════════════════════════════
   NAVBAR
   ═══════════════════════════════════════════ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.logo-img {
    height: 50px;
    width: auto;
    transition: transform 0.3s ease;
}

.nav-logo:hover .logo-img {
    transform: scale(1.05);
}

.logo-accent {
    color: var(--accent);
}

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

.nav-links a {
    color: var(--gray-700);
    font-weight: 600;
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.lang-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    background: var(--bg-primary);
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-body);
    font-weight: 600;
}

.lang-toggle {
    color: var(--text-primary);
    font-size: 0.9375rem;
    letter-spacing: 0.5px;
}

.lang-toggle:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--gray-800);
    border-radius: 2px;
    transition: var(--transition);
}

/* ═══════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
    background: linear-gradient(135deg, #F0F4FF 0%, #FFF5E6 100%);
}

.hero-bg-shapes {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.hero-highlight {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    margin-top: 2rem;
    box-shadow: var(--shadow-md);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-lg);
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: var(--spacing-xl);
}

.hero-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm) var(--spacing-lg);
    list-style: none;
}

.hero-highlights li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.highlight-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-3d-card {
    width: min(400px, 100%);
    aspect-ratio: 1;
    background: var(--bg-primary);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.card-glow {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    opacity: 0.1;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.1; }
    50% { opacity: 0.2; }
}

.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
    z-index: 1;
}

.scroll-arrow {
    font-size: 1.5rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(10px); }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: none;
}

/* ═══════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════ */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    text-align: center;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: var(--bg-primary);
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}

/* Botón secundario pequeño ("Consultar"): contorno, se rellena al pasar el ratón */
.btn-small {
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
    background: var(--bg-primary);
    color: var(--primary);
    border-color: var(--primary);
}

.btn-small:hover {
    background: var(--primary);
    color: white;
}

/* Texto oscuro sobre ámbar: el blanco no llega al contraste mínimo */
.btn-accent {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--gray-900);
}

.btn-accent:hover {
    background: var(--accent-light);
    border-color: var(--accent-light);
    color: var(--gray-900);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* Verde WhatsApp oscurecido para que el texto blanco se lea (5,2:1) */
.btn-whatsapp {
    background: #0E7A6D;
    color: white;
}

.btn-whatsapp:hover {
    background: #075E54;
    transform: translateY(-2px);
}

/* ═══════════════════════════════════════════
   QUÉ HACEMOS
   ═══════════════════════════════════════════ */
.services {
    background: var(--bg-primary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.service-image {
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg,
        hsl(var(--hue), 70%, 85%),
        hsl(var(--hue), 60%, 95%));
}

.service-image--blue { --hue: 210; }
.service-image--pink { --hue: 300; }
.service-image--teal { --hue: 180; }
.service-image--amber { --hue: 40; }

.service-icon {
    font-size: 4rem;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.service-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    flex: 1;
    padding: var(--spacing-md);
}

.service-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.service-info p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-size: 0.9375rem;
}

/* El botón queda alineado abajo aunque los textos tengan distinta longitud */
.service-info .btn {
    margin-top: auto;
}

/* ═══════════════════════════════════════════
   TEACHERS SECTION
   ═══════════════════════════════════════════ */
.teachers {
    position: relative;
    overflow: hidden;
    background: var(--bg-secondary);
}

.teachers > .container {
    position: relative;
    z-index: 1;
}

.teachers-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.teachers-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.teachers-features {
    display: grid;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.feature {
    display: flex;
    gap: 1rem;
    align-items: start;
}

.feature-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.feature h3 {
    font-size: 1.125rem;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.feature p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.teachers-visual {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    position: relative;
}

.teachers-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: var(--spacing-md);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    text-align: center;
    transition: var(--transition);
    font-weight: 600;
}

.teachers-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-emoji {
    font-size: 2.5rem;
}

.card-1 { grid-column: 1; }
.card-2 { grid-column: 2; }
.card-3 { grid-column: 1; }
.card-4 { grid-column: 2; }
.card-5 { grid-column: 1 / -1; }

/* ═══════════════════════════════════════════
   ABOUT SECTION
   ═══════════════════════════════════════════ */
.about {
    background: var(--bg-primary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
}

.about-story p {
    font-size: 1.125rem;
    color: var(--gray-700);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.about-process h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.process-steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.step {
    display: flex;
    gap: 1rem;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h4 {
    font-size: 1.125rem;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.step-content p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* ═══════════════════════════════════════════
   FAQ SECTION
   ═══════════════════════════════════════════ */
.faq {
    background: var(--bg-secondary);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: none;
    border: none;
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    text-align: left;
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--primary);
}

.faq-icon {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--primary);
    transition: var(--transition);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ═══════════════════════════════════════════
   CONTACT SECTION
   ═══════════════════════════════════════════ */
.contact {
    background: var(--bg-secondary);
}

.contact-layout {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-xl);
}

.contact-form {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-hint {
    margin-top: 0.5rem;
    font-size: 0.875rem;
}

.form-check {
    display: flex;
    align-items: flex-start;
    gap: 0.625rem;
    margin-bottom: var(--spacing-md);
    font-size: 0.9375rem;
    color: var(--gray-700);
}

.form-check input {
    width: 1.125rem;
    height: 1.125rem;
    margin-top: 0.2rem;
    flex-shrink: 0;
    accent-color: var(--primary);
}

.form-check a {
    color: var(--primary);
    text-decoration: underline;
}

/* Campo trampa: fuera de la pantalla, no display:none (algunos bots lo detectan) */
.form-honeypot {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.btn:disabled {
    opacity: 0.7;
    cursor: wait;
    transform: none;
}

.form-status {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    padding: var(--spacing-md);
    border: 2px solid;
    border-radius: var(--radius-md);
    margin-top: var(--spacing-md);
    font-weight: 600;
}

.form-status:focus {
    outline: none;
}

.form-status--success {
    background: #ECFDF5;
    border-color: var(--edu-green);
}

.form-status--success .form-status-text {
    color: #065F46;
}

.form-status--error {
    background: #FEF2F2;
    border-color: var(--edu-red);
}

.form-status--error .form-status-text {
    color: #991B1B;
}

.contact-alternatives {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
}

.contact-card-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: var(--spacing-sm);
}

.contact-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.contact-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.social-link {
    width: 48px;
    height: 48px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    color: var(--gray-700);
}

.social-link:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.social-link.instagram:hover {
    background: linear-gradient(45deg, #F58529, #DD2A7B, #8134AF);
    color: white;
}

/* ═══════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════ */
.footer {
    background: var(--gray-900);
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* El logo es oscuro: se muestra sobre una placa clara para que contraste con el pie */
.footer-logo {
    width: 72px;
    height: 72px;
    padding: 6px;
    background: white;
    border-radius: var(--radius-lg);
}

.footer-brand .logo-text {
    font-size: 1.5rem;
}

.footer-brand p {
    color: var(--gray-400);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: var(--gray-400);
    transition: var(--transition);
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--gray-700);
    color: var(--gray-400);
    font-size: 0.875rem;
}

/* ═══════════════════════════════════════════
   WHATSAPP FLOATING BUTTON
   ═══════════════════════════════════════════ */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    background: #128C7E;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
    z-index: 999;
    transition: var(--transition);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 20px 40px rgba(37, 211, 102, 0.4);
}

/* ═══════════════════════════════════════════
   BOTÓN VOLVER ARRIBA
   ═══════════════════════════════════════════ */
.back-to-top {
    position: fixed;
    bottom: 90px;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 998;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 20px 40px rgba(79, 70, 229, 0.4);
    background: var(--primary-dark);
}

/* ═══════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════ */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .hero {
        min-height: auto;
        padding-top: 5.5rem;
        padding-bottom: 3rem;
    }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        display: none;
    }

    .nav-links.active {
        display: flex;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .hero-cta {
        justify-content: center;
        flex-wrap: wrap;
    }

    .hero-highlights {
        justify-content: center;
    }

    .nav-logo {
        font-size: 1.05rem;
        white-space: nowrap;
    }

    .logo-img {
        height: 40px;
    }

    /* Versión compacta de la impresora debajo del texto */
    .hero-3d-card {
        width: min(260px, 80vw);
    }

    .scroll-indicator,
    .floating-elements,
    .hero-bg-shapes .shape-3 {
        display: none;
    }

    /* En móvil el scroll es natural: solo queda el botón de WhatsApp, más pequeño */
    .back-to-top {
        display: none;
    }

    .whatsapp-float {
        width: 52px;
        height: 52px;
        right: 1rem;
        bottom: 1rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

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

    .teachers-layout,
    .about-grid,
    .contact-layout {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: var(--spacing-md);
    }

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }

    .footer-links {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    /* Que el botón flotante no tape el final del pie */
    .footer {
        padding-bottom: 5rem;
    }
}

@media (max-width: 480px) {
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
}

/* ═══════════════════════════════════════════
   GRADIENT MESH ANIMADO (HERO) - SUAVE Y DRAMÁTICO
   ═══════════════════════════════════════════ */
.hero-bg-shapes .shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.6;
    will-change: transform;
}

.hero-bg-shapes .shape-1 {
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, #A855F7, #EC4899);
    top: -100px;
    right: -100px;
    animation: moveShape1 10s ease-in-out infinite;
}

.hero-bg-shapes .shape-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #F59E0B, #F97316);
    bottom: -80px;
    left: -80px;
    animation: moveShape2 12s ease-in-out infinite;
}

.hero-bg-shapes .shape-3 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, #10B981, #3B82F6);
    top: 45%;
    left: 45%;
    margin-left: -175px;
    margin-top: -175px;
    animation: moveShape3 14s ease-in-out infinite;
}

@keyframes moveShape1 {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(-280px, 180px) scale(1.5);
    }
    50% {
        transform: translate(-120px, -200px) scale(1.7);
    }
    75% {
        transform: translate(220px, 140px) scale(1.3);
    }
}

@keyframes moveShape2 {
    0%, 100% {
        transform: translate(0, 0) scale(1) rotate(0deg);
    }
    33% {
        transform: translate(250px, -200px) scale(1.6) rotate(120deg);
    }
    66% {
        transform: translate(-220px, 180px) scale(1.4) rotate(240deg);
    }
}

@keyframes moveShape3 {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    20% {
        transform: translate(220px, -160px) scale(1.5);
    }
    40% {
        transform: translate(-240px, 140px) scale(1.7);
    }
    60% {
        transform: translate(180px, 200px) scale(1.3);
    }
    80% {
        transform: translate(-140px, -180px) scale(1.6);
    }
}

/* ═══════════════════════════════════════════
   IMPRESORA 3D (SVG animado por initPrinter)
   ═══════════════════════════════════════════ */
.printer {
    position: relative;
    width: 88%;
    height: auto;
    overflow: visible;
}

.printer-metal { fill: var(--gray-700); }
.printer-metal-light { fill: var(--gray-500); }
.printer-base { fill: var(--gray-800); }
.printer-screen { fill: var(--primary-light); }
.printer-knob { fill: var(--gray-500); }
.printer-bed { fill: var(--gray-400); }
.printer-rod { fill: var(--gray-500); }
.printer-carriage { fill: var(--primary); }
.printer-fan { fill: var(--primary-dark); }
.printer-nozzle { fill: var(--gray-800); }
.printer-spool-inner { fill: var(--gray-100); }

.printer-filament {
    fill: none;
    stroke-width: 2.5;
    stroke-linecap: round;
    opacity: 0.85;
}

.printer-glow {
    fill: var(--accent);
    filter: drop-shadow(0 0 4px var(--accent));
    transition: opacity 0.2s;
}

/* Debe coincidir con FONT_SIZE de initPrinter() */
#printLetter {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 130px;
}

.printer-done rect { fill: var(--edu-green); }

.printer-done text {
    fill: white;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 15px;
}

/* ═══════════════════════════════════════════
   ELEMENTOS FLOTANTES DECORATIVOS
   ═══════════════════════════════════════════ */
.floating-elements {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

.float-item {
    position: absolute;
    font-size: 2.5rem;
    opacity: 0.18;
    animation: floatAround 15s ease-in-out infinite;
    filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.1));
}

.float-item:nth-child(1) { top: 10%; left: 5%; animation-delay: 0s; }
.float-item:nth-child(2) { top: 20%; right: 10%; animation-delay: 1s; }
.float-item:nth-child(3) { top: 35%; left: 15%; animation-delay: 2s; }
.float-item:nth-child(4) { top: 50%; right: 20%; animation-delay: 0.5s; }
.float-item:nth-child(5) { top: 65%; left: 8%; animation-delay: 1.5s; }
.float-item:nth-child(6) { top: 75%; right: 12%; animation-delay: 2.5s; }
.float-item:nth-child(7) { top: 15%; left: 50%; animation-delay: 3s; }
.float-item:nth-child(8) { top: 45%; left: 25%; animation-delay: 0.8s; }
.float-item:nth-child(9) { top: 60%; right: 25%; animation-delay: 1.8s; }
.float-item:nth-child(10) { top: 80%; left: 40%; animation-delay: 2.2s; }
.float-item:nth-child(11) { top: 25%; right: 40%; animation-delay: 3.5s; }
.float-item:nth-child(12) { top: 70%; right: 5%; animation-delay: 1.2s; }

@keyframes floatAround {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    25% {
        transform: translateY(-20px) rotate(5deg);
    }
    50% {
        transform: translateY(-10px) rotate(-5deg);
    }
    75% {
        transform: translateY(-30px) rotate(3deg);
    }
}

/* ═══════════════════════════════════════════
   EFECTO TILT 3D EN TARJETAS
   ═══════════════════════════════════════════ */
.service-card,
.teachers-card {
    transition: transform 0.1s ease-out, box-shadow 0.3s ease;
    will-change: transform;
}

.service-card:hover,
.teachers-card:hover {
    box-shadow: var(--shadow-xl);
}

/* Media query para desactivar en móvil */
@media (hover: none) {
    .service-card,
    .teachers-card {
        transition: var(--transition);
    }
}

/* ═══════════════════════════════════════════
   INFORMACIÓN LEGAL (pie, formulario y páginas legales)
   ═══════════════════════════════════════════ */
.footer-legal {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem var(--spacing-md);
    margin-bottom: 0.75rem;
}

.footer-legal a {
    color: var(--gray-400);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.footer-legal a:hover,
.footer-legal a[aria-current="page"] {
    color: white;
}

.form-legal {
    margin-bottom: var(--spacing-md);
    font-size: 0.8125rem;
    line-height: 1.5;
}

/* Datos que faltan: muy visibles para que no se publiquen por error */
mark.pendiente {
    background: #FEF08A;
    color: #713F12;
    padding: 0 0.25rem;
    border-radius: 3px;
    font-weight: 700;
}

.legal-body {
    background: var(--bg-secondary);
}

.legal-header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
}

.legal-header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.legal-header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.legal-header-actions .lang-toggle {
    padding: 0.375rem 0.75rem;
}

.legal-translation-note {
    padding: 0.75rem 1rem;
    background: #EEF2FF;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
}

.legal-back {
    color: var(--primary);
    font-weight: 700;
    white-space: nowrap;
}

.legal-back:hover {
    text-decoration: underline;
}

.legal-main {
    max-width: 760px;
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-2xl);
}

.legal-main h1 {
    font-size: 2.25rem;
    margin-bottom: 0.5rem;
}

.legal-main h2 {
    font-size: 1.25rem;
    margin: var(--spacing-lg) 0 0.75rem;
}

.legal-main p,
.legal-main li {
    color: var(--gray-700);
    line-height: 1.75;
}

.legal-main p {
    margin-bottom: 0.75rem;
}

.legal-main ul {
    margin: 0 0 0.75rem 1.25rem;
}

.legal-main li {
    margin-bottom: 0.375rem;
}

.legal-main a {
    color: var(--primary);
    text-decoration: underline;
}

.legal-updated {
    font-size: 0.875rem;
}

.legal-footer {
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.legal-footer p {
    color: var(--gray-400);
    font-size: 0.875rem;
}

@media (max-width: 480px) {
    .legal-header .logo-text {
        display: none;
    }

    .legal-main h1 {
        font-size: 1.75rem;
    }
}

/* ═══════════════════════════════════════════
   MOVIMIENTO REDUCIDO (preferencia del sistema)
   ═══════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .hero-bg-shapes,
    .floating-elements {
        display: none;
    }
}

/* ═══════════════════════════════════════════
   PÁGINA 404
   ═══════════════════════════════════════════ */
.error-page {
    text-align: center;
}

.error-code {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 6rem;
    line-height: 1;
    color: var(--primary-light);
    margin-bottom: var(--spacing-sm);
}

.error-page .btn {
    margin-top: var(--spacing-sm);
    color: white;
    text-decoration: none;
}

.error-alt {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}