/* AgentFactoria — Landing rediseñada v3.1 */

/* Tipografía: DM Sans para titulares (design system) */
body {
    font-family: var(--font-sans, 'DM Sans', system-ui, sans-serif);
    background-color: var(--color-bg-primary, #f6f8fb);
    background-image:
        radial-gradient(at 18% 0%, rgba(12, 89, 230, 0.06) 0%, transparent 52%),
        radial-gradient(at 82% 12%, rgba(99, 102, 241, 0.04) 0%, transparent 46%);
}

h2, h3, .cert-block h2 {
    font-family: var(--font-display);
    letter-spacing: -0.02em;
}

.section-head h2 {
    font-family: var(--font-display);
    font-weight: 700;
}

:root {
    --font-heading: var(--font-display);
    --bg: var(--color-bg-primary, #f6f8fb);
    --surface: var(--color-bg-card, #fff);
    --surface-muted: var(--color-bg-secondary, #eef2f7);
    --text: var(--color-text-primary, #0f172a);
    --text-muted: var(--color-text-muted, #64748b);
    --border: var(--color-border, rgba(15, 23, 42, 0.09));
    --primary: var(--color-accent, #0c59e6);
    --primary-dark: var(--color-accent-soft, #0a4bc4);
    --primary-soft: rgba(12, 89, 230, 0.1);
    --success: var(--color-green, #059669);
    --font: var(--font-sans, 'DM Sans', system-ui, sans-serif);
}

a { color: var(--primary); }
a:hover { color: var(--primary-dark); }

/* ── Header ── */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: #fff;
    border-bottom: 1px solid #e2e8f0;
    transition: box-shadow 0.2s ease;
}

.site-header.is-scrolled {
    box-shadow: 0 1px 12px rgba(15, 23, 42, 0.06);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 64px;
}

@media (min-width: 768px) {
    .site-header__inner {
        min-height: 88px;
        gap: 24px;
    }
}

@media (min-width: 1100px) {
    .site-header__inner {
        min-height: 116px;
    }
}

.site-header__brand {
    flex-shrink: 0;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 20px;
}

.site-nav__links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.site-nav__links a,
.site-nav__link {
    color: #334155;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 8px 12px;
    border-radius: 8px;
    transition: color 0.15s ease, background 0.15s ease;
    white-space: nowrap;
}

.site-nav__links a:hover,
.site-nav__link:hover {
    color: #0f172a;
    background: #f1f5f9;
}

.site-nav__links a.is-active,
.site-nav__link.is-active {
    color: #0c59e6;
    background: #eff8ff;
}

.site-nav__actions {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-left: 12px;
    border-left: 1px solid #e2e8f0;
}

.site-nav__user {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #475569;
    padding: 4px 10px 4px 4px;
    border-radius: 999px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
}

.site-nav__avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: #0c59e6;
    color: #fff;
    font-size: 0.72rem;
    font-weight: 800;
    display: grid;
    place-items: center;
    flex-shrink: 0;
}

.site-nav__logout {
    margin: 0;
}

/* Botones: colores sólidos, alto contraste */
.site-header .btn--primary,
.site-footer .btn--primary {
    background: #0c59e6;
    color: #fff;
    border: 1px solid #0c59e6;
    font-weight: 700;
}

.site-header .btn--primary:hover,
.site-footer .btn--primary:hover {
    background: #0a4bc4;
    border-color: #0a4bc4;
    color: #fff;
    transform: none;
    box-shadow: none;
}

.site-header .btn--ghost {
    color: #334155;
    border-color: #cbd5e1;
    background: #fff;
    font-weight: 600;
}

.site-header .btn--ghost:hover {
    color: #0f172a;
    background: #f8fafc;
    border-color: #94a3b8;
}

.site-nav__cta {
    min-width: 130px;
}

.btn--primary {
    background: #0c59e6;
    color: #fff;
    border: 1px solid #0c59e6;
}

.btn--primary:hover {
    background: #0a4bc4;
    border-color: #0a4bc4;
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(12, 89, 230, 0.25);
}

/* ── Hero v3 ── */
.hero--v3 {
    position: relative;
    overflow: hidden;
    padding: 48px 0 56px;
    background: transparent;
}

.hero__mesh {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.hero__orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
}

.hero__orb--1 {
    width: 480px;
    height: 480px;
    top: -120px;
    right: -80px;
    background: rgba(99, 102, 241, 0.18);
}

.hero__orb--2 {
    width: 360px;
    height: 360px;
    bottom: -80px;
    left: -60px;
    background: rgba(12, 89, 230, 0.15);
}

.hero__grid-lines {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(15, 23, 42, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15, 23, 42, 0.03) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse at 50% 30%, black 20%, transparent 75%);
}

.hero--v3 .hero__grid {
    position: relative;
    z-index: 1;
    align-items: center;
    gap: 48px;
}

.hero__badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 22px;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    background: #fff;
    border: 1px solid rgba(12, 89, 230, 0.2);
    color: var(--primary-dark);
    font-size: 0.78rem;
    font-weight: 700;
    border-radius: 999px;
    letter-spacing: 0.02em;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}

.hero__badge--soft {
    background: linear-gradient(135deg, rgba(12, 89, 230, 0.1), rgba(99, 102, 241, 0.08));
    border-color: rgba(12, 89, 230, 0.15);
}

.hero__badge-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.2);
    animation: hero-pulse 2s ease infinite;
}

@keyframes hero-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

@media (prefers-reduced-motion: reduce) {
    .hero__badge-dot {
        animation: none;
    }
}

.hero__title {
    font-family: var(--font-display);
    font-size: clamp(2.1rem, 4.5vw, 3.1rem);
    font-weight: 800;
    line-height: 1.12;
    letter-spacing: -0.035em;
    color: var(--text);
    margin-bottom: 20px;
    max-width: 14ch;
    text-wrap: balance;
}

.hero__title-accent {
    display: block;
    color: #0c59e6;
}

.hero__lead {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-muted);
    max-width: 48ch;
    margin-bottom: 28px;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 32px;
}

.hero__actions .btn--ghost {
    background: #fff;
    border-color: var(--border);
}

.hero__metrics {
    display: flex;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 4px;
    margin-bottom: 28px;
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.05);
    max-width: fit-content;
}

.hero__metric {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 12px 20px;
    position: relative;
}

.hero__metric + .hero__metric::before {
    content: '';
    position: absolute;
    left: 0;
    top: 20%;
    bottom: 20%;
    width: 1px;
    background: var(--border);
}

.hero__metric strong {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1;
}

.hero__metric span {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero__checks {
    list-style: none;
    display: grid;
    gap: 12px;
}

.hero__checks li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.hero__check-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(5, 150, 105, 0.1);
    color: var(--success);
    display: grid;
    place-items: center;
    margin-top: 1px;
}

/* Hero visual / showcase */
.hero__visual {
    position: relative;
}

.hero-showcase {
    position: relative;
    padding-top: 24px;
}

.hero-showcase__glow {
    position: absolute;
    inset: 10% 5% 5%;
    background: linear-gradient(135deg, rgba(12, 89, 230, 0.2), rgba(99, 102, 241, 0.15));
    border-radius: 24px;
    filter: blur(40px);
    z-index: 0;
}

.hero-preview {
    position: relative;
    z-index: 1;
    padding: 16px 18px;
    margin-bottom: -28px;
    margin-left: 24px;
    margin-right: 24px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.9);
    box-shadow: 0 12px 40px rgba(15, 23, 42, 0.08);
    transform: translateY(0);
    opacity: 0.95;
}

.hero-preview__top {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 14px;
}

.hero-preview__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border);
}

.hero-preview__dot:nth-child(1) { background: #f87171; }
.hero-preview__dot:nth-child(2) { background: #fbbf24; }
.hero-preview__dot:nth-child(3) { background: #34d399; }

.hero-preview__label {
    margin-left: auto;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
}

.hero-preview__progress {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-muted);
}

.hero-preview__bar {
    flex: 1;
    height: 6px;
    background: var(--surface-muted);
    border-radius: 999px;
    overflow: hidden;
}

.hero-preview__bar span {
    display: block;
    height: 100%;
    background: linear-gradient(90deg, #3d7aed, #6366f1);
    border-radius: 999px;
}

.hero-preview__modules {
    list-style: none;
    display: grid;
    gap: 8px;
}

.hero-preview__modules li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: 10px;
    font-size: 0.82rem;
    color: var(--text-muted);
    background: var(--surface-muted);
}

.hero-preview__modules li.is-active {
    background: rgba(12, 89, 230, 0.08);
    color: var(--text);
    border: 1px solid rgba(12, 89, 230, 0.15);
}

.hero-preview__module-num {
    width: 22px;
    height: 22px;
    border-radius: 6px;
    background: #fff;
    font-size: 0.7rem;
    font-weight: 800;
    color: var(--primary);
    display: grid;
    place-items: center;
    flex-shrink: 0;
}

.hero-card {
    position: relative;
    z-index: 2;
    border: 1px solid rgba(255, 255, 255, 0.8);
    background: linear-gradient(165deg, #fff 0%, rgba(248, 250, 252, 0.98) 100%);
    box-shadow:
        0 32px 64px rgba(15, 23, 42, 0.12),
        0 0 0 1px rgba(12, 89, 230, 0.08);
    padding: 28px;
}

.hero-card__price-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 20px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.hero-card__price-label {
    display: block;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.hero-card__price-wrap {
    display: flex;
    align-items: baseline;
    gap: 10px;
}

.hero-card__price {
    font-family: var(--font-display);
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.03em;
    line-height: 1;
}

.hero-card__price-old {
    font-size: 1.1rem;
    color: var(--text-muted);
    text-decoration: line-through;
}

.hero-card__discount {
    flex-shrink: 0;
    padding: 8px 12px;
    border-radius: 10px;
    background: linear-gradient(135deg, #ecfdf5, #d1fae5);
    color: var(--success);
    font-size: 0.85rem;
    font-weight: 800;
}

.hero-card__header {
    margin-bottom: 20px;
}

.hero-card__header h2 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.hero-card__header p {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin: 0;
}

.hero-card .btn--ghost {
    margin-top: 10px;
}

.hero-card__trust {
    list-style: none;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    display: grid;
    gap: 10px;
}

.hero-card__trust li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.hero-card__trust svg {
    flex-shrink: 0;
    color: var(--primary);
    opacity: 0.8;
}

/* Trust bar */
.trust-bar {
    padding: 0 0 48px;
    margin-top: -16px;
}

.trust-bar__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.trust-bar__item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 18px 20px;
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
}

.trust-bar__item strong {
    display: block;
    font-size: 0.95rem;
    margin-bottom: 4px;
    color: var(--text);
}

.trust-bar__item span {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.45;
}

/* Ecosistema campus */
.ecosystem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.ecosystem-card {
    padding: 28px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.ecosystem-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
    border-color: rgba(12, 89, 230, 0.2);
}

.ecosystem-card__icon {
    font-size: 1.75rem;
    display: block;
    margin-bottom: 14px;
}

.ecosystem-card h3 {
    font-size: 1.05rem;
    margin-bottom: 8px;
    font-family: var(--font-sans);
    font-weight: 700;
}

.ecosystem-card p {
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.6;
}

/* Curriculum mejorado */
.curriculum-card__head {
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.curriculum-card__num {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--primary);
    margin-bottom: 6px;
}

.curriculum-card:hover {
    border-color: rgba(12, 89, 230, 0.2);
}

/* Certificado */
.cert-block {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
    align-items: center;
}

.cert-block__list {
    list-style: none;
    display: grid;
    gap: 10px;
    margin: 20px 0 24px;
}

.cert-block__list li {
    color: var(--text-muted);
    font-size: 0.95rem;
    padding-left: 22px;
    position: relative;
}

.cert-block__list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 800;
}

.cert-block__visual {
    padding: 32px;
    background: linear-gradient(135deg, rgba(12, 89, 230, 0.06) 0%, rgba(99, 102, 241, 0.06) 100%);
}

.cert-mock {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 12px;
    padding: 32px 24px;
    border: 2px dashed rgba(12, 89, 230, 0.3);
    border-radius: 12px;
    background: #fff;
}

.cert-mock__badge {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary);
}

.cert-mock strong {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
}

.cert-mock__code {
    font-family: ui-monospace, monospace;
    font-size: 0.9rem;
    color: var(--text-muted);
    background: var(--surface-muted);
    padding: 6px 14px;
    border-radius: 8px;
}

.cert-mock__meta {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Features 6 columnas */
.features-grid {
    grid-template-columns: repeat(3, 1fr);
}

/* Changelog */
.changelog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.changelog-card time {
    display: block;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.changelog-card h3 {
    font-size: 1rem;
    margin-bottom: 12px;
    font-family: var(--font-sans);
    font-weight: 700;
}

.changelog-card ul {
    list-style: none;
    display: grid;
    gap: 8px;
}

.changelog-card li {
    font-size: 0.88rem;
    color: var(--text-muted);
    padding-left: 16px;
    position: relative;
    line-height: 1.5;
}

.changelog-card li::before {
    content: '·';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

/* FAQ — ancho completo como el resto de secciones */
.faq-list {
    max-width: none;
    width: 100%;
}

.faq-item summary {
    cursor: pointer;
    font-weight: 700;
    font-size: 1rem;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
    content: '+';
    font-size: 1.25rem;
    color: var(--primary);
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-item p {
    margin-top: 14px;
    color: var(--text-muted);
    line-height: 1.65;
    padding-top: 14px;
    border-top: 1px solid var(--border);
}

/* CTA band */
.cta-band__inner {
    background: #0c59e6;
}

.cta-band__guarantee {
    font-size: 0.88rem !important;
    opacity: 0.85;
    margin-top: 8px !important;
}

/* Footer */
.site-footer {
    background: #0f172a;
    color: #cbd5e1;
    padding: 0;
    margin-top: 0;
    border-top: 3px solid #0c59e6;
}

.site-footer__top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 40px;
    padding: 48px 0 40px;
    border-bottom: 1px solid #1e293b;
}

.site-footer__intro {
    max-width: 420px;
}

.site-footer__intro p {
    margin-top: 20px;
    font-size: 0.95rem;
    line-height: 1.7;
    color: #94a3b8;
}

.brand-logo--footer .brand-logo__img {
    filter: brightness(0) invert(1);
    opacity: 0.95;
}

.site-footer__cta-block {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 16px;
    text-align: right;
    flex-shrink: 0;
}

.site-footer__cta-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin: 0;
}

.site-footer__cta-text strong {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    color: #f8fafc;
}

.site-footer__cta-text span {
    font-size: 0.88rem;
    color: #94a3b8;
}

.site-footer__cta-btn {
    min-width: 180px;
}

.site-footer__stats {
    border-bottom: 1px solid #1e293b;
}

.site-footer__stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}

.site-footer__stat {
    padding: 24px 16px;
    text-align: center;
    border-right: 1px solid #1e293b;
}

.site-footer__stat:last-child {
    border-right: none;
}

.site-footer__stat strong {
    display: block;
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 800;
    color: #5b96ef;
    margin-bottom: 4px;
}

.site-footer__stat span {
    font-size: 0.75rem;
    font-weight: 600;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.site-footer__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    padding: 40px 0 36px;
}

.site-footer__col h3 {
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #f1f5f9;
    margin-bottom: 18px;
}

.site-footer__links {
    display: grid;
    gap: 10px;
}

.site-footer__links a {
    color: #94a3b8;
    font-size: 0.9rem;
    transition: color 0.15s ease;
}

.site-footer__links a:hover {
    color: #f8fafc;
}

.site-footer__trust-list {
    list-style: none;
    display: grid;
    gap: 10px;
}

.site-footer__trust-list li {
    font-size: 0.88rem;
    color: #94a3b8;
    padding-left: 18px;
    position: relative;
}

.site-footer__trust-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #0c59e6;
    font-weight: 700;
}

.site-footer__bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    border-top: 1px solid #1e293b;
    padding: 20px 0 28px;
}

.site-footer__bottom p {
    font-size: 0.85rem;
    color: #64748b;
    margin: 0;
}

.site-footer__tagline {
    font-size: 0.78rem !important;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: #475569 !important;
}

/* Animaciones reveal */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal--delay { transition-delay: 0.1s; }
.reveal--delay-2 { transition-delay: 0.2s; }
.reveal--delay-3 { transition-delay: 0.3s; }

/* Responsive */
@media (max-width: 1100px) {
    .trust-bar__grid,
    .ecosystem-grid,
    .changelog-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cert-block {
        grid-template-columns: 1fr;
    }

    .site-footer__stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .site-footer__stat:nth-child(2) {
        border-right: none;
    }

    .site-footer__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    .site-header__inner {
        position: relative;
    }

    .nav-toggle {
        display: flex;
        z-index: 101;
        border-radius: 10px;
        border-color: var(--border);
        transition: background 0.15s ease;
    }

    .nav-toggle[aria-expanded="true"] {
        background: var(--surface-muted);
    }

    body.nav-open {
        overflow: hidden;
    }

    body.nav-open::after {
        content: '';
        position: fixed;
        inset: 0;
        background: rgba(15, 23, 42, 0.4);
        z-index: 98;
        backdrop-filter: blur(2px);
    }

    .site-nav {
        display: flex !important;
        position: fixed;
        top: 0;
        right: 0;
        width: min(320px, 88vw);
        height: 100vh;
        height: 100dvh;
        flex-direction: column;
        align-items: stretch;
        gap: 20px;
        padding: 80px 20px 32px;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        border-left: 1px solid var(--border);
        box-shadow: -12px 0 40px rgba(15, 23, 42, 0.12);
        transform: translateX(100%);
        transition: transform 0.3s ease;
        z-index: 99;
        overflow-y: auto;
    }

    .site-nav.is-open {
        transform: translateX(0);
    }

    .site-nav__links {
        flex-direction: column;
        align-items: stretch;
        gap: 2px;
    }

    .site-nav__links a,
    .site-nav__link {
        padding: 12px 16px;
        font-size: 0.95rem;
        color: #1e293b;
    }

    .site-nav__actions {
        flex-direction: column;
        align-items: stretch;
        margin-left: 0;
        padding-left: 0;
        border-left: none;
        padding-top: 12px;
        border-top: 1px solid #e2e8f0;
        gap: 10px;
    }

    .site-header .btn--primary,
    .site-header .btn--ghost {
        width: 100%;
        justify-content: center;
    }

    .site-nav__user {
        justify-content: center;
        padding: 10px;
    }

    .site-nav__cta {
        width: 100%;
    }

    .site-nav__logout .btn {
        width: 100%;
    }

    .hero__grid,
    .video-section__grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero__title {
        max-width: none;
    }

    .hero__actions .btn {
        flex: 1 1 auto;
    }

    .hero__metrics {
        max-width: 100%;
        width: 100%;
    }

    .hero-preview {
        margin-left: 12px;
        margin-right: 12px;
    }

    .hero-showcase {
        padding-top: 12px;
    }

    .curriculum-grid,
    .features-grid {
        grid-template-columns: 1fr;
    }

    .site-footer__top {
        flex-direction: column;
        gap: 28px;
        padding: 36px 0 32px;
    }

    .site-footer__cta-block {
        align-items: flex-start;
        text-align: left;
        width: 100%;
    }

    .site-footer__cta-btn {
        width: 100%;
    }

    .site-footer__grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
        padding: 32px 0 28px;
    }

    .cta-band__inner {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 640px) {
    .trust-bar__grid,
    .ecosystem-grid,
    .changelog-grid {
        grid-template-columns: 1fr;
    }

    .hero__metrics {
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero__metric {
        flex: 1 1 40%;
        padding: 10px 14px;
    }

    .hero__metric + .hero__metric::before {
        display: none;
    }

    .hero__actions {
        flex-direction: column;
    }

    .hero__actions .btn {
        width: 100%;
    }

    .hero--v3 {
        padding: 24px 0 32px;
    }

    .hero--course .hero-preview {
        display: none;
    }

    .hero--course .hero-showcase {
        padding-top: 0;
    }

    .hero--course .hero-card {
        margin-top: 0;
    }

    .course-prose-card {
        padding: 20px 18px;
    }

    .annex-offer-card {
        padding: 20px;
    }

    .store-featured__actions {
        flex-direction: column;
    }

    .store-featured__actions .btn {
        width: 100%;
    }

    .site-footer__grid {
        grid-template-columns: 1fr;
    }

    .site-footer__stat {
        border-right: none;
        border-bottom: 1px solid #1e293b;
    }

    .site-footer__stat:last-child {
        border-bottom: none;
    }

    .site-footer__stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .site-footer__bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* Anexos vendibles por separado */
.annex-offers-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
}

.annex-offer-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
    height: 100%;
}

.annex-offer-card__badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-primary, #0c59e6);
}

.annex-offer-card h3 {
    margin: 0;
    font-size: 1.35rem;
}

.annex-offer-card__meta {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 6px;
    color: var(--color-muted, #64748b);
    font-size: 0.95rem;
}

.annex-offer-card__footer {
    margin-top: auto;
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    padding-top: 8px;
}

.annex-offer-card__price strong {
    display: block;
    font-size: 1.75rem;
    line-height: 1.1;
}

.annex-offer-card__price span {
    font-size: 0.85rem;
    color: var(--color-muted, #64748b);
}

.annex-offer-card__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

@media (max-width: 768px) {
    .annex-offers-grid {
        grid-template-columns: 1fr;
    }
}

/* ── Tienda: catálogo y fichas de curso (mismo sistema que la home) ── */
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    margin-bottom: 20px;
    color: var(--text-muted);
}

.breadcrumb a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
}

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

.breadcrumb__sep {
    opacity: 0.45;
}

.breadcrumb--centered {
    justify-content: center;
}

/* Hero compacto (catálogo) */
.hero--compact {
    padding: 40px 0 32px;
}

.hero__copy--centered {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
}

.hero__title--centered {
    max-width: none;
    margin-left: auto;
    margin-right: auto;
}

.hero__lead--centered {
    max-width: 56ch;
    margin-left: auto;
    margin-right: auto;
}

.hero__note {
    margin: 20px auto 0;
    max-width: 52ch;
    padding: 14px 18px;
    border-radius: 14px;
    background: #fff;
    border: 1px solid var(--border);
    font-size: 0.95rem;
    color: var(--text-muted);
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
}

.hero__note strong {
    color: var(--text);
}

/* Acentos sutiles por curso (sin fondos saturados) */
.hero--course-chatgpt .hero__title-accent { color: #059669; }
.hero--course-chatgpt .hero__orb--2 { background: rgba(5, 150, 105, 0.14); }
.hero--course-chatgpt .hero-showcase__glow {
    background: linear-gradient(135deg, rgba(5, 150, 105, 0.18), rgba(16, 185, 129, 0.12));
}

.hero--course-claude .hero__title-accent { color: #7c3aed; }
.hero--course-claude .hero__orb--1 { background: rgba(124, 58, 237, 0.14); }
.hero--course-claude .hero-showcase__glow {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.18), rgba(167, 139, 250, 0.12));
}

.hero--course-main .hero__title-accent { color: #0c59e6; }

/* Tarjetas catálogo */
.annex-offer-card {
    padding: 28px;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.annex-offer-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
    border-color: rgba(12, 89, 230, 0.2);
}

.annex-offer-card h3 a {
    color: inherit;
    text-decoration: none;
}

.annex-offer-card h3 a:hover {
    color: var(--primary);
}

.annex-offer-card--featured {
    padding: 32px 36px;
}

.annex-offer-card--main {
    border-color: rgba(12, 89, 230, 0.22);
    background: linear-gradient(165deg, #fff 0%, rgba(239, 248, 255, 0.65) 100%);
}

.annex-offer-card--main .annex-offer-card__badge {
    background: var(--primary-soft);
    padding: 4px 10px;
    border-radius: 999px;
    border: 1px solid rgba(12, 89, 230, 0.15);
}

.store-featured {
    margin-bottom: 48px;
}

.store-featured__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.store-bundle-block {
    margin-top: 48px;
}

/* Ficha de curso: contenido */
.course-prose-card {
    padding: 32px 36px;
}

.course-prose-card .lesson-content__body {
    font-size: 1rem;
    line-height: 1.75;
    color: var(--text-muted);
}

.course-prose-card .lesson-content__body h3 {
    font-family: var(--font-display);
    color: var(--text);
    font-size: 1.1rem;
    margin: 1.5em 0 0.6em;
}

.course-prose-card .lesson-content__body ul {
    padding-left: 1.25rem;
}

.curriculum-card__duration {
    margin: 6px 0 0;
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 600;
}

.hero-card__progress-meta {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 0 0 12px;
}

.hero-card__bundle-link {
    margin: 14px 0 0;
    padding-top: 14px;
    border-top: 1px dashed var(--border);
    font-size: 0.85rem;
    color: var(--text-muted);
    text-align: center;
    line-height: 1.5;
}

.hero-card__bundle-link a {
    display: block;
    font-weight: 700;
    margin-top: 4px;
}

.store-upsell-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 220px;
}

.store-upsell-visual__price {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 8px;
    padding: 28px 32px;
    border: 2px dashed rgba(12, 89, 230, 0.28);
    border-radius: 16px;
    background: #fff;
    width: 100%;
}

.store-upsell-visual__price span {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary);
}

.store-upsell-visual__price strong {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1;
}

.store-upsell-visual__price em {
    font-style: normal;
    font-size: 0.88rem;
    color: var(--text-muted);
}

.section--compact {
    padding: 32px 0 48px;
}

.store-back-link {
    text-align: center;
}

@media (max-width: 900px) {
    .hero--course .hero__visual {
        order: -1;
    }

    .store-featured {
        margin-bottom: 32px;
    }
}