/* =============================================================
   CODEADVENTURE — HOME PAGE
   Aesthetic: Neon Academy (dark arcade meets premium edtech)
   Fonts: Fredoka (display) · Outfit (body) · JetBrains Mono (code)
   ============================================================= */

@import url('https://fonts.googleapis.com/css2?family=Fredoka:wght@400;500;600;700&family=Outfit:wght@300;400;500;600;700&family=JetBrains+Mono:ital,wght@0,400;0,500;1,400&display=swap');

/* ===== DESIGN TOKENS ===== */
:root {
    --neon-purple: #7f5af0;
    --neon-blue: #00d4ff;
    --neon-pink: #ff0077;
    --neon-green: #00ff88;
    --glow-purple: rgba(127, 90, 240, 0.35);
    --glow-blue: rgba(0, 212, 255, 0.25);
    --glow-pink: rgba(255, 0, 119, 0.25);
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --font-display: 'Fredoka', sans-serif;
    --font-body: 'Outfit', sans-serif;
    --font-code: 'JetBrains Mono', monospace;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
    --glass-bg: rgba(0, 0, 0, 0.02);
    --glass-border: rgba(0, 0, 0, 0.08);
    --glow-purple: rgba(127, 90, 240, 0.15);
    --glow-blue: rgba(0, 212, 255, 0.12);
}

body {
    font-family: var(--font-body);
}

/* ===== GLOBAL SECTION RHYTHM ===== */
.hero, .tabs-container, .lenguajes, .experiencias,
.features, .languages-section, .testimonials-section,
.pricing-preview, .seo-content-section {
    position: relative;
}

/* ===== SECTION HEADINGS ===== */
.features h2,
.lenguajes h2,
.experiencias h2,
.section-title {
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.02em;
    position: relative;
    display: inline-block;
}

.section-title::after,
.features h2::after,
.lenguajes h2::after,
.experiencias h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--neon-purple), var(--neon-blue));
    border-radius: 2px;
}

/* ===== HERO ===== */
.hero {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 100px 150px;
    gap: 150px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 10% 60%, rgba(42, 20, 110, 0.5) 0%, transparent 55%),
        radial-gradient(ellipse at 85% 15%, rgba(52, 152, 219, 0.2) 0%, transparent 45%),
        radial-gradient(ellipse at 70% 85%, rgba(255, 0, 119, 0.12) 0%, transparent 40%);
    animation: heroNebula 12s ease-in-out infinite alternate;
    pointer-events: none;
    z-index: 0;
}

@keyframes heroNebula {
    0%   { opacity: 0.7; transform: scale(1); }
    100% { opacity: 1;   transform: scale(1.04); }
}

.hero-content {
    display: flex;
    width: 100%;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 1;
}

/* ===== HERO TEXT ===== */
.hero-text {
    max-width: 50%;
    animation: heroTextIn 0.8s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes heroTextIn {
    from { opacity: 0; transform: translateY(32px); }
    to   { opacity: 1; transform: translateY(0); }
}

.hero h1 {
    font-family: var(--font-display);
    font-size: 44px;
    font-weight: 700;
    color: var(--text-color);
    text-align: center;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 18px;
}

.hero p {
    font-family: var(--font-body);
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 32px;
    text-align: center;
    line-height: 1.6;
}

/* Highlight colors */
.highlight      { color: #3498db; font-weight: 700; }
.highlight-ai   { color: var(--neon-blue); font-weight: 700; }
.highlight-game { color: var(--neon-pink); font-weight: 700; }
.highlight-green { color: var(--neon-green); font-weight: 700; }

/* ===== HERO VIDEO ===== */
.hero-media {
    width: 45%;
    height: 500px;
    border-radius: var(--radius-xl);
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    animation: heroMediaIn 0.9s 0.15s cubic-bezier(0.22, 1, 0.36, 1) both;
    box-shadow:
        0 0 0 1px var(--glass-border),
        0 30px 80px rgba(0, 0, 0, 0.5),
        0 0 60px var(--glow-purple);
}

@keyframes heroMediaIn {
    from { opacity: 0; transform: translateX(40px) scale(0.96); }
    to   { opacity: 1; transform: translateX(0) scale(1); }
}

.hero-media::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: calc(var(--radius-xl) + 1px);
    background: linear-gradient(135deg, rgba(127,90,240,0.6), rgba(0,212,255,0.3), rgba(255,0,119,0.3));
    z-index: 2;
    pointer-events: none;
    opacity: 0.6;
    mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    mask-composite: exclude;
    -webkit-mask-composite: xor;
    padding: 1px;
}

.hero-media video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-xl);
}

/* ===== HERO BUTTONS ===== */
.hero-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-top: 24px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    padding: 14px 26px;
    border: none;
    border-radius: 50px;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.01em;
}

.btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.12) 50%, transparent 70%);
    transform: translateX(-100%);
    transition: transform 0.5s ease;
    pointer-events: none;
}

.btn:hover::after {
    transform: translateX(100%);
}

.btn-icon {
    font-size: 1.15rem;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.btn:hover .btn-icon {
    transform: scale(1.15) rotate(-5deg);
}

.btn-primary {
    background: linear-gradient(135deg, #2A146E 0%, #3498db 100%);
    color: white;
    box-shadow: 0 4px 20px var(--glow-purple);
}
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px var(--glow-purple);
}

.btn-secondary {
    background: transparent;
    color: var(--text-color);
    border: 2px solid rgba(52, 152, 219, 0.5);
    backdrop-filter: blur(8px);
}
.btn-secondary:hover {
    background: rgba(52, 152, 219, 0.15);
    border-color: #3498db;
    color: #3498db;
    transform: translateY(-3px);
}

.btn-accent {
    background: linear-gradient(135deg, var(--neon-pink), #e84393);
    color: white;
    box-shadow: 0 4px 20px var(--glow-pink);
}
.btn-accent:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px var(--glow-pink);
}

.btn-tertiary {
    background: linear-gradient(135deg, var(--neon-blue), #00b894);
    color: #000;
    font-weight: 700;
    box-shadow: 0 4px 20px var(--glow-blue);
}
.btn-tertiary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px var(--glow-blue);
}

.btn-cta {
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    color: white;
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    padding: 18px 48px;
    box-shadow: 0 4px 20px rgba(255, 107, 53, 0.35);
    letter-spacing: 0.02em;
}
.btn-cta:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(255, 107, 53, 0.5);
}

.btn-card {
    background: linear-gradient(135deg, #2A146E 0%, #3498db 100%);
    color: white;
    font-size: 0.9rem;
    padding: 12px 24px;
    margin-top: 16px;
}
.btn-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px var(--glow-purple);
}

.btn-registrarse:hover { background: linear-gradient(135deg, #5a3ba4, #ff6b35); }

/* ===== LOADING SPINNER ===== */
.loading-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: 6px;
    flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== TABS SECTION ===== */
.tabs-container {
    padding: 60px 40px;
}

.tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 32px;
    justify-content: center;
}

.btn-tab {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.875rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    padding: 10px 18px;
    border-radius: 12px;
    transition: var(--transition-smooth);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 48px;
    text-align: left;
    line-height: 1.4;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(6px);
}

.btn-tab::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.06), transparent);
    transform: translateX(-100%);
    transition: transform 0.5s ease;
}
.btn-tab:hover::before { transform: translateX(100%); }

.btn-tab:hover {
    transform: translateY(-2px);
    border-color: var(--neon-purple);
    color: var(--text-color);
    background: rgba(127, 90, 240, 0.12);
    box-shadow: 0 4px 16px var(--glow-purple);
}

.btn-tab.active {
    background: linear-gradient(135deg, rgba(127,90,240,0.25), rgba(52,152,219,0.2));
    border-color: var(--neon-purple);
    color: white;
    box-shadow: 0 4px 20px var(--glow-purple);
}

.btn-tab .btn-icon { font-size: 17px; flex-shrink: 0; }
.btn-tab:hover .btn-icon, .btn-tab.active .btn-icon { transform: scale(1.1); }

/* Tab content area */
.tab-content {
    display: flex;
    justify-content: center;
    align-items: center;
}

.tab-container {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 16px;
    width: 72%;
    backdrop-filter: blur(10px);
    box-shadow:
        0 8px 32px rgba(0,0,0,0.3),
        inset 0 1px 0 rgba(255,255,255,0.05);
    position: relative;
    overflow: hidden;
}

.tab-container::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--neon-purple), var(--neon-blue), transparent);
    opacity: 0.6;
}

.tab-section {
    display: none;
    flex-direction: row;
    align-items: center;
    gap: 24px;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.35s ease, transform 0.35s ease;
}

.tab-section.active {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

.tab-media {
    flex: 1;
    padding: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 360px;
}

.tab-media img {
    max-width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

.tab-text { flex: 1; padding: 16px; }

.tab-text h2 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-color);
    line-height: 1.25;
    margin-bottom: 14px;
    letter-spacing: -0.02em;
}

.tab-text p {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.75;
    color: var(--text-secondary);
}

/* ===== LANGUAGES (ICONS ROW) ===== */
.lenguajes {
    text-align: center;
    padding: 60px 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.lenguajes h2 {
    font-size: 2.2rem;
    color: var(--text-color);
    font-weight: 700;
    margin-bottom: 36px;
    text-align: center;
}

.lenguajes-iconos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 48px;
    margin-bottom: 32px;
    max-width: 960px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 28px 48px;
    backdrop-filter: blur(8px);
    box-shadow: 0 4px 24px rgba(0,0,0,0.2);
    position: relative;
    overflow: hidden;
}

.lenguajes-iconos::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--neon-blue), transparent);
    opacity: 0.5;
}

.lenguajes-iconos img,
.lenguajes-icono-svg {
    width: 56px;
    height: 56px;
    object-fit: contain;
    transition: transform 0.25s ease, filter 0.25s ease, opacity 0.25s ease;
    filter: brightness(0.85) saturate(0.9);
    opacity: 0.85;
}

.lenguajes-iconos img:hover,
.lenguajes-icono-svg:hover {
    transform: scale(1.2) translateY(-4px);
    filter: brightness(1.1) saturate(1.2);
    opacity: 1;
}

.lenguajes .btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, var(--neon-purple), #3498db);
    padding: 16px 40px;
    font-size: 1.1rem;
    font-family: var(--font-display);
    font-weight: 600;
    text-decoration: none;
    color: white;
    border-radius: 50px;
    text-align: center;
    margin-top: 8px;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 24px var(--glow-purple);
}

.lenguajes .btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 40px var(--glow-purple);
}

/* ===== EXPERIENCIAS (CARDS) ===== */
.experiencias {
    text-align: center;
    padding: 60px 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.experiencias h2 {
    font-size: 2.2rem;
    color: var(--text-color);
    font-weight: 700;
    margin-bottom: 48px;
    text-align: center;
}

.card-container {
    display: flex;
    gap: 28px;
    justify-content: center;
    flex-wrap: wrap;
    max-width: 1280px;
}

.card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 0;
    width: calc(33% - 20px);
    min-width: 300px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.2);
    backdrop-filter: blur(8px);
    transition: var(--transition-smooth);
    overflow: hidden;
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, var(--neon-purple), var(--neon-blue), var(--neon-pink));
    opacity: 0;
    transition: opacity 0.35s ease;
    z-index: 0;
    pointer-events: none;
    mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    mask-composite: exclude;
    -webkit-mask-composite: xor;
    padding: 1px;
}

.card:hover::before { opacity: 1; }

.card:hover {
    transform: translateY(-10px);
    box-shadow:
        0 20px 50px rgba(0,0,0,0.4),
        0 0 30px var(--glow-purple);
}

.card-content {
    position: relative;
    z-index: 1;
}

.card-image {
    overflow: hidden;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    height: 200px;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.card:hover .card-image img {
    transform: scale(1.05);
}

.card-text {
    padding: 20px 24px 24px;
}

.card-text h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 10px;
    line-height: 1.3;
}

.card-text p {
    font-family: var(--font-body);
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.card-text .btn,
.card-text a.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #2A146E 0%, #3498db 100%);
    padding: 11px 22px;
    font-size: 0.875rem;
    font-family: var(--font-body);
    font-weight: 600;
    text-decoration: none;
    color: white;
    border-radius: 50px;
    margin-top: 16px;
    transition: var(--transition-smooth);
    box-shadow: 0 2px 12px var(--glow-purple);
    border: none;
    cursor: pointer;
}

.card-text .btn:hover,
.card-text a.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 24px var(--glow-purple);
}

/* ===== FEATURES ===== */
.features {
    text-align: center;
    padding: 60px 40px;
}

.features h2 {
    font-size: 2.2rem;
    color: var(--text-color);
    font-weight: 700;
    margin-bottom: 48px;
    text-align: center;
}

.feature-box {
    display: flex;
    justify-content: center;
    gap: 28px;
    flex-wrap: wrap;
}

.feature {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    width: 280px;
    text-align: center;
    backdrop-filter: blur(8px);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.feature::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--neon-purple), var(--neon-blue));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature:hover::before { opacity: 1; }

.feature:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px var(--glow-purple);
    border-color: rgba(127, 90, 240, 0.3);
}

.feature h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--neon-purple);
    margin-bottom: 12px;
}

.feature p {
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

/* ===== LANGUAGES GRID ===== */
.languages-section {
    padding: 60px 0;
    background: var(--bg-primary);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-subtitle {
    font-family: var(--font-body);
    font-size: 1.1rem;
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 48px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.languages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.language-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 28px;
    backdrop-filter: blur(8px);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.language-card:nth-child(1) { --card-accent: var(--neon-blue); }
.language-card:nth-child(2) { --card-accent: #f7e017; }
.language-card:nth-child(3) { --card-accent: var(--neon-pink); }

.language-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--card-accent, var(--neon-purple));
    opacity: 0.7;
}

.language-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(0,0,0,0.3), 0 0 24px rgba(127,90,240,0.15);
    border-color: rgba(127,90,240,0.25);
}

.language-icon {
    font-size: 2.8rem;
    margin-bottom: 14px;
    display: block;
    filter: drop-shadow(0 0 8px rgba(0,212,255,0.4));
}

.language-card h3 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 10px;
}

.language-card p {
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.65;
}

.difficulty {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 18px;
}

.difficulty-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-family: var(--font-body);
}

.difficulty-level {
    padding: 3px 12px;
    border-radius: 20px;
    font-family: var(--font-body);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.difficulty-level.easy {
    background: rgba(0, 255, 136, 0.15);
    color: var(--neon-green);
    border: 1px solid rgba(0, 255, 136, 0.3);
}

.difficulty-level.medium {
    background: rgba(247, 224, 23, 0.12);
    color: #f7e017;
    border: 1px solid rgba(247, 224, 23, 0.3);
}

/* IDE-style code preview */
.code-preview {
    background: #0d0d1a;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: inset 0 2px 8px rgba(0,0,0,0.4);
}

.code-preview::before {
    content: '● ● ●';
    display: block;
    padding: 8px 14px 6px;
    font-size: 10px;
    letter-spacing: 4px;
    color: rgba(255,255,255,0.2);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    background: rgba(0,0,0,0.3);
    font-family: monospace;
}

.code-preview pre {
    margin: 0;
    padding: 14px 16px;
    overflow-x: auto;
}

.code-preview code {
    font-family: var(--font-code);
    font-size: 0.82rem;
    line-height: 1.7;
    color: #abb2bf;
    white-space: pre;
}

[data-theme="light"] .code-preview { background: #1a1b26; }

/* ===== TESTIMONIALS ===== */
.testimonials-section {
    padding: 60px 0;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.testimonials-section::before {
    content: '"';
    position: absolute;
    top: -60px;
    left: 5%;
    font-family: var(--font-display);
    font-size: 400px;
    line-height: 1;
    color: var(--neon-purple);
    opacity: 0.04;
    pointer-events: none;
    user-select: none;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.testimonial-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 28px;
    backdrop-filter: blur(8px);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 12px;
    right: 20px;
    font-family: var(--font-display);
    font-size: 72px;
    line-height: 1;
    color: var(--neon-purple);
    opacity: 0.15;
    pointer-events: none;
}

.testimonial-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(0,0,0,0.3);
    border-color: rgba(127,90,240,0.25);
}

.testimonial-content p {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-color);
    margin-bottom: 20px;
    font-style: italic;
}

/* Star rating decoration */
.testimonial-content::before {
    content: '★★★★★';
    display: block;
    color: #f7e017;
    font-size: 0.9rem;
    letter-spacing: 2px;
    margin-bottom: 12px;
    opacity: 0.9;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    font-size: 1.6rem;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(127,90,240,0.2), rgba(0,212,255,0.15));
    border: 1px solid rgba(127,90,240,0.3);
    border-radius: 50%;
}

.author-info h4 {
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-color);
    margin: 0 0 3px 0;
}

.author-info span {
    font-family: var(--font-body);
    color: var(--text-secondary);
    font-size: 0.82rem;
}

/* ===== PRICING PREVIEW ===== */
.pricing-preview {
    padding: 80px 0;
    background: var(--bg-primary);
    text-align: center;
    overflow: hidden;
    position: relative;
}

.pricing-preview::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(ellipse, rgba(127,90,240,0.12) 0%, transparent 70%);
    pointer-events: none;
    animation: pricingPulse 6s ease-in-out infinite;
}

@keyframes pricingPulse {
    0%, 100% { opacity: 0.6; transform: translate(-50%, -50%) scale(1); }
    50%       { opacity: 1;   transform: translate(-50%, -50%) scale(1.15); }
}

.pricing-highlights {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin: 32px 0 48px;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 1rem;
    color: var(--text-color);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    padding: 10px 20px;
    backdrop-filter: blur(6px);
}

.highlight-icon {
    font-size: 1.1rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.btn-large {
    padding: 18px 48px;
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

/* ===== SEO CONTENT SECTION ===== */
.seo-content-section {
    padding: 60px 0;
    background: var(--bg-primary);
}

.seo-content-section .container { max-width: 900px; }

.seo-content-section h3 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-color);
    margin: 2.5rem 0 1rem;
}

.seo-content-section p {
    font-family: var(--font-body);
    color: var(--text-secondary);
    line-height: 1.85;
    margin-bottom: 1rem;
    font-size: 1rem;
}

.seo-courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin: 1.5rem 0;
}

.seo-course-block {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 24px;
    backdrop-filter: blur(6px);
}

.seo-course-block h4 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--neon-purple);
    margin-bottom: 10px;
}

.seo-course-block p { margin-bottom: 0; font-size: 0.95rem; }

.seo-reasons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    margin: 1.5rem 0;
}

.seo-reason {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 20px;
    backdrop-filter: blur(6px);
    transition: var(--transition-smooth);
}

.seo-reason:hover {
    border-color: rgba(127,90,240,0.3);
    transform: translateY(-3px);
}

.seo-reason h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--neon-purple);
    margin-bottom: 8px;
}

.seo-reason p { margin-bottom: 0; font-size: 0.9rem; }

.seo-cta-text {
    margin-top: 2.5rem;
    font-family: var(--font-body);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-color);
    text-align: center;
    line-height: 1.7;
}

/* ===== LEGAL LINKS ===== */
.legal-link {
    font-family: var(--font-body);
    color: var(--text-secondary);
    text-decoration: none;
    margin: 0 10px;
    transition: color 0.3s;
    font-size: 0.85rem;
}

.legal-link:hover {
    color: var(--neon-purple);
    text-decoration: underline;
}

/* ===== SCROLL REVEAL ===== */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.6s cubic-bezier(0.22,1,0.36,1), transform 0.6s cubic-bezier(0.22,1,0.36,1);
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1100px) {
    .hero { padding: 80px 60px; gap: 60px; }
    .tab-container { width: 90%; }
    .card { width: calc(50% - 16px); }
}

@media (max-width: 768px) {
    .hero {
        padding: 60px 24px;
        gap: 40px;
    }
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    .hero-text { max-width: 100%; }
    .hero h1 { font-size: 1.9rem; }
    .hero p  { font-size: 1rem; }
    .hero-media {
        width: 100%;
        height: 260px;
    }
    .hero-buttons {
        grid-template-columns: 1fr 1fr;
        max-width: 100%;
    }
    .tabs { flex-direction: column; align-items: center; }
    .btn-tab { width: 100%; justify-content: flex-start; }
    .tab-container { width: 95%; }
    .tab-section.active { flex-direction: column; }
    .tab-media { height: 220px; width: 100%; }
    .card { width: 100%; }
    .card-container { padding: 0 16px; }
    .feature-box { flex-direction: column; align-items: center; }
    .languages-grid { grid-template-columns: 1fr; }
    .testimonials-grid { grid-template-columns: 1fr; }
    .pricing-highlights { flex-direction: column; align-items: center; }
    .cta-buttons { flex-direction: column; align-items: center; }
    .seo-courses-grid, .seo-reasons-grid { grid-template-columns: 1fr; }
    .section-title { font-size: 2rem; }
    .lenguajes h2, .experiencias h2, .features h2 { font-size: 1.8rem; }
    .lenguajes-iconos { gap: 28px; padding: 20px 24px; }
}

@media (max-width: 480px) {
    .hero-buttons { grid-template-columns: 1fr; }
    .btn-tab { font-size: 0.82rem; padding: 8px 14px; }
    .hero h1 { font-size: 1.6rem; }
}