/* ═══════════════════════════════════════════════════════════════════
   TT Academy — Home / Landing (B2C — para el estudiante)
   Estética sobria + acento dorado, coherente con la home comercial de TT.
   Todos los selectores van con prefijo .ttah- para NO colisionar con tta.css.
   Tokens base (--gold, --text-*, --tta-surf-*) los provee main.css + tta.css.
   ═══════════════════════════════════════════════════════════════════ */

.ttah {
    --ttah-gold: var(--gold, #D4AF37);
    --ttah-gold-light: var(--gold-light, #E8C84A);
    --ttah-gold-border: rgba(212, 175, 55, 0.22);
    --ttah-gold-bg: rgba(212, 175, 55, 0.08);
    --ttah-line: rgba(255, 255, 255, 0.08);
    --ttah-line-2: rgba(255, 255, 255, 0.12);
    --ttah-surf: rgba(20, 20, 24, 0.55);
    --ttah-surf-hover: rgba(28, 28, 34, 0.72);
    --ttah-ease: cubic-bezier(.16, 1, .3, 1);
    --ttah-maxw: 1160px;
    color: var(--text-secondary, #C4C4CC);
}

.ttah * { box-sizing: border-box; }

.ttah__container {
    width: 90%;
    max-width: var(--ttah-maxw);
    margin: 0 auto;
}
@media (min-width: 992px) { .ttah__container { width: 86%; } }

/* ── Eyebrow ─────────────────────────────────────────────────── */
.ttah-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 6px 14px;
    background: var(--ttah-gold-bg);
    border: 1px solid var(--ttah-gold-border);
    border-radius: 999px;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--ttah-gold-light);
    letter-spacing: 0.02em;
}
.ttah-eyebrow .ttah-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--ttah-gold);
    box-shadow: 0 0 10px var(--ttah-gold);
}

/* Section heading kit */
.ttah-section-eyebrow {
    display: inline-block;
    font-size: 12.5px;
    font-weight: 700;
    color: var(--ttah-gold);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    margin-bottom: 16px;
}
.ttah-section-title {
    font-size: clamp(26px, 4vw, 46px);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    color: var(--text-primary, #F5F5F4);
    max-width: 760px;
    margin: 0 0 16px;
}
.ttah-section-sub {
    font-size: clamp(15.5px, 1.4vw, 18px);
    color: var(--text-secondary, #C4C4CC);
    max-width: 640px;
    line-height: 1.55;
    margin: 0 0 48px;
}
.ttah-gold-text { color: var(--ttah-gold); }

/* ── Section rhythm ──────────────────────────────────────────── */
.ttah-section { padding: 84px 0; position: relative; }
@media (max-width: 767px) { .ttah-section { padding: 56px 0; } }

.ttah-divider {
    height: 1px;
    max-width: var(--ttah-maxw);
    margin: 0 auto;
    background: linear-gradient(90deg, transparent, var(--ttah-gold-border), transparent);
}

/* ── Buttons (home-specific, sobrios) ────────────────────────── */
.ttah-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 26px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 15px;
    font-family: inherit;
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: transform .3s var(--ttah-ease), background .3s var(--ttah-ease),
                border-color .3s var(--ttah-ease), color .3s var(--ttah-ease);
    white-space: nowrap;
}
.ttah-btn--primary {
    background: linear-gradient(135deg, var(--ttah-gold), var(--ttah-gold-light));
    color: #0A0A0A;
    box-shadow: 0 6px 22px rgba(212, 175, 55, 0.22);
}
.ttah-btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.32);
    color: #0A0A0A;
}
.ttah-btn--ghost {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary, #F5F5F4);
    border-color: var(--ttah-line-2);
}
.ttah-btn--ghost:hover {
    background: rgba(255, 255, 255, 0.07);
    border-color: var(--ttah-gold-border);
    color: var(--ttah-gold);
}
.ttah-btn .ttah-arr { transition: transform .3s var(--ttah-ease); }
.ttah-btn:hover .ttah-arr { transform: translateX(4px); }

/* ── Hero ────────────────────────────────────────────────────── */
.ttah-hero {
    padding: 64px 0 56px;
    position: relative;
    overflow: hidden;
}
.ttah-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background:
        radial-gradient(60% 50% at 18% 0%, rgba(212, 175, 55, 0.10), transparent 60%),
        radial-gradient(55% 55% at 90% 20%, rgba(212, 175, 55, 0.05), transparent 65%);
}
.ttah-hero__grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 56px;
    align-items: center;
}
@media (max-width: 900px) {
    .ttah-hero__grid { grid-template-columns: 1fr; gap: 40px; }
}
.ttah-hero h1 {
    font-size: clamp(30px, 6vw, 56px);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.08;
    color: var(--text-primary, #F5F5F4);
    margin: 22px 0 18px;
}
.ttah-hero__sub {
    font-size: clamp(16px, 1.6vw, 20px);
    color: var(--text-secondary, #C4C4CC);
    line-height: 1.55;
    max-width: 520px;
    margin: 0 0 32px;
}
.ttah-hero__cta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 36px;
}
@media (max-width: 480px) {
    .ttah-hero__cta { flex-direction: column; align-items: stretch; }
    .ttah-hero__cta .ttah-btn { width: 100%; }
}
.ttah-hero__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 22px;
    padding-top: 26px;
    border-top: 1px solid var(--ttah-line);
}
.ttah-hero__meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13.5px;
    color: var(--text-muted, #8B8B96);
}
.ttah-hero__meta-item svg { color: var(--ttah-gold); flex-shrink: 0; }

/* Hero visual: una tarjeta de "lección" sobria, monocromática */
.ttah-hero__visual {
    position: relative;
}
.ttah-card-mock {
    background: var(--ttah-surf);
    border: 1px solid var(--ttah-line-2);
    border-radius: 20px;
    padding: 22px;
    box-shadow: 0 24px 60px -18px rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}
.ttah-card-mock__head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
}
.ttah-card-mock__avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--ttah-gold-border);
    background: var(--ttah-gold-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ttah-gold);
    font-weight: 800;
    font-size: 16px;
    flex-shrink: 0;
}
.ttah-card-mock__title { font-weight: 700; color: var(--text-primary, #F5F5F4); font-size: 15px; }
.ttah-card-mock__meta { font-size: 12.5px; color: var(--text-muted, #8B8B96); }
.ttah-card-mock__lesson {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid var(--ttah-line);
    background: rgba(255, 255, 255, 0.02);
    margin-bottom: 8px;
}
.ttah-card-mock__lesson:last-child { margin-bottom: 0; }
.ttah-card-mock__num {
    width: 26px;
    height: 26px;
    border-radius: 8px;
    background: var(--ttah-gold-bg);
    color: var(--ttah-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12.5px;
    font-weight: 700;
    flex-shrink: 0;
}
.ttah-card-mock__lesson--done .ttah-card-mock__num {
    background: var(--ttah-gold);
    color: #0A0A0A;
}
.ttah-card-mock__lesson--lock { opacity: 0.55; }
.ttah-card-mock__ltext { flex: 1; font-size: 13.5px; color: var(--text-secondary, #C4C4CC); }
.ttah-card-mock__lico { color: var(--text-muted, #8B8B96); font-size: 18px; line-height: 1; }
.ttah-card-mock__lico--free { color: var(--ttah-gold); font-size: 11px; font-weight: 700; letter-spacing: 0.04em; }

/* ── Steps (cómo funciona) ───────────────────────────────────── */
.ttah-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}
@media (max-width: 991px) { .ttah-steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .ttah-steps { grid-template-columns: 1fr; } }
.ttah-step {
    position: relative;
    padding: 26px 22px;
    border-radius: 18px;
    background: var(--ttah-surf);
    border: 1px solid var(--ttah-line-2);
    transition: transform .35s var(--ttah-ease), border-color .35s var(--ttah-ease);
    overflow: hidden;
}
.ttah-step::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--ttah-gold), transparent);
    opacity: 0;
    transition: opacity .35s var(--ttah-ease);
}
.ttah-step:hover { transform: translateY(-5px); border-color: var(--ttah-gold-border); }
.ttah-step:hover::before { opacity: 1; }
.ttah-step__num {
    font-size: 46px;
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.05em;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--ttah-gold) 0%, transparent 85%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.ttah-step h4 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary, #F5F5F4);
    margin: 0 0 8px;
    letter-spacing: -0.01em;
}
.ttah-step p { font-size: 14px; line-height: 1.55; color: var(--text-secondary, #C4C4CC); margin: 0; }

/* ── Why grid (por qué TTA) ──────────────────────────────────── */
.ttah-why {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}
@media (max-width: 860px) { .ttah-why { grid-template-columns: 1fr 1fr; } }
@media (max-width: 540px) { .ttah-why { grid-template-columns: 1fr; } }
.ttah-why__card {
    padding: 26px 24px;
    border-radius: 16px;
    border: 1px solid var(--ttah-line-2);
    background: var(--ttah-surf);
    transition: transform .35s var(--ttah-ease), border-color .35s var(--ttah-ease),
                background .35s var(--ttah-ease);
    position: relative;
    overflow: hidden;
}
.ttah-why__card::before {
    content: "";
    position: absolute;
    top: 0; left: 50%;
    transform: translateX(-50%);
    width: 55%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--ttah-gold), transparent);
    opacity: 0;
    transition: opacity .35s var(--ttah-ease);
}
.ttah-why__card:hover {
    transform: translateY(-4px);
    border-color: var(--ttah-gold-border);
    background: var(--ttah-surf-hover);
}
.ttah-why__card:hover::before { opacity: 1; }
.ttah-why__icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--ttah-gold-bg);
    border: 1px solid var(--ttah-gold-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ttah-gold);
    margin-bottom: 16px;
}
.ttah-why__card h4 {
    font-size: 16.5px;
    font-weight: 700;
    color: var(--text-primary, #F5F5F4);
    margin: 0 0 8px;
    letter-spacing: -0.01em;
}
.ttah-why__card p { font-size: 14px; line-height: 1.55; color: var(--text-secondary, #C4C4CC); margin: 0; }

/* ── KOL strip (¿eres KOL?) ──────────────────────────────────── */
.ttah-kol {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 24px;
    padding: 34px 36px;
    border-radius: 20px;
    border: 1px solid var(--ttah-gold-border);
    background:
        radial-gradient(80% 120% at 0% 0%, rgba(212, 175, 55, 0.08), transparent 60%),
        var(--ttah-surf);
}
.ttah-kol h3 {
    font-size: clamp(20px, 2.6vw, 28px);
    font-weight: 800;
    color: var(--text-primary, #F5F5F4);
    letter-spacing: -0.02em;
    margin: 0 0 6px;
}
.ttah-kol p { font-size: 15px; color: var(--text-secondary, #C4C4CC); margin: 0; max-width: 520px; }

/* ── Final CTA ───────────────────────────────────────────────── */
.ttah-cta {
    text-align: center;
    padding: 56px 28px;
    border-radius: 24px;
    border: 1px solid var(--ttah-gold-border);
    background:
        radial-gradient(80% 120% at 50% 0%, rgba(212, 175, 55, 0.12), transparent 70%),
        var(--ttah-surf);
}
.ttah-cta h2 {
    font-size: clamp(26px, 4vw, 42px);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    color: var(--text-primary, #F5F5F4);
    margin: 0 0 14px;
}
.ttah-cta p {
    font-size: clamp(15px, 1.4vw, 18px);
    color: var(--text-secondary, #C4C4CC);
    max-width: 540px;
    margin: 0 auto 26px;
    line-height: 1.55;
}
.ttah-cta__actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}
.ttah-cta__fine {
    margin-top: 22px;
    font-size: 12.5px;
    color: var(--text-muted, #8B8B96);
}

/* ── Reveal-on-scroll (progressive enhancement) ──────────────── */
.ttah [data-ttah-reveal] {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity .8s var(--ttah-ease), transform .8s var(--ttah-ease);
    will-change: opacity, transform;
}
.ttah [data-ttah-reveal].is-in { opacity: 1; transform: none; }
.ttah [data-ttah-stagger].is-in > * { animation: ttahFade .7s var(--ttah-ease) both; }
.ttah [data-ttah-stagger].is-in > *:nth-child(2) { animation-delay: .08s; }
.ttah [data-ttah-stagger].is-in > *:nth-child(3) { animation-delay: .16s; }
.ttah [data-ttah-stagger].is-in > *:nth-child(4) { animation-delay: .24s; }
.ttah [data-ttah-stagger].is-in > *:nth-child(5) { animation-delay: .32s; }
.ttah [data-ttah-stagger].is-in > *:nth-child(6) { animation-delay: .40s; }
@keyframes ttahFade { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
    .ttah [data-ttah-reveal],
    .ttah [data-ttah-stagger] > * {
        opacity: 1 !important;
        transform: none !important;
        animation: none !important;
        transition: none !important;
    }
    .ttah-btn, .ttah-step, .ttah-why__card { transition: none !important; }
}