/* Landing */
.site-header { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; letter-spacing: -0.02em; font-size: 1.05rem; }
.brand svg { width: 30px; height: 30px; }
.brand small { font-family: var(--mono); font-weight: 500; font-size: 0.68rem; letter-spacing: 0.12em; color: var(--text-3); text-transform: uppercase; display: block; line-height: 1; margin-top: 2px; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a:not(.btn) { color: var(--text-2); text-decoration: none; padding: 10px 12px; border-radius: 8px; font-size: 0.93rem; font-weight: 500; min-height: 44px; display: inline-flex; align-items: center; }
.nav-links a:not(.btn):hover { color: var(--text); background: var(--surface); }
.nav-actions { display: flex; align-items: center; gap: 8px; }
.icon-btn { width: 44px; height: 44px; display: inline-grid; place-items: center; background: transparent; color: var(--text-2); border: 1px solid var(--line); border-radius: 999px; font-size: 1.05rem; cursor: pointer; }
.icon-btn:hover { color: var(--text); border-color: var(--text-3); }
.menu-btn { display: none; }

section { padding: 88px 0; position: relative; }
.section-head { max-width: 720px; margin-bottom: 44px; }
.section-head p { color: var(--text-2); font-size: 1.1rem; }

/* Hero */
.hero { padding: 64px 0 80px; overflow: hidden; }
.hero-grid { display: grid; gap: 48px; grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); align-items: center; }
.hero h1 em { font-style: normal; color: var(--accent-text); }
.hero .lead { font-size: 1.2rem; color: var(--text-2); max-width: 36em; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin: 28px 0 14px; }
.hero-note { font-family: var(--mono); font-size: 0.78rem; color: var(--text-3); }
.hero-art { position: relative; }
.hero-art svg { width: 100%; height: auto; overflow: visible; }
.hero-art .outline { fill: color-mix(in srgb, var(--accent) 5%, transparent); stroke: var(--cut); stroke-width: 2; stroke-dasharray: 9 7; }
.hero-art .seam { fill: none; stroke: var(--line-strong); stroke-width: 1.5; stroke-dasharray: 3 5; }
.hero-art .grain { stroke: var(--text-3); stroke-width: 1.5; fill: var(--text-3); }
.hero-art .flow { fill: none; stroke: var(--data); stroke-width: 2; stroke-dasharray: 6 8; animation: flow 1.6s linear infinite; }
.hero-art .node { fill: var(--surface); stroke: var(--data); stroke-width: 2; }
.hero-art .core { fill: var(--accent); stroke: none; }
.hero-art .core-ring { fill: none; stroke: var(--accent); stroke-width: 1.5; opacity: 0.5; animation: pulse 2.8s ease-in-out infinite; transform-origin: 270px 265px; }
.hero-art text { font-family: var(--mono); font-size: 11.5px; fill: var(--text-2); letter-spacing: 0.04em; }
.hero-art text.big { font-size: 13px; font-weight: 700; fill: var(--accent-ink); letter-spacing: 0.1em; }
.hero-art text.dim { fill: var(--text-3); font-size: 9.5px; letter-spacing: 0.16em; }
.hero-art .tick { stroke: var(--text-3); stroke-width: 1; }
@keyframes flow { to { stroke-dashoffset: -28; } }
@keyframes pulse { 0%, 100% { transform: scale(0.9); opacity: 0.55; } 50% { transform: scale(1.25); opacity: 0.1; } }
.hero-code { margin-top: 56px; }

/* Barra de compatibilidad */
.strip { padding: 22px 0; border-block: 1px dashed var(--line-strong); background: var(--bg-2); }
.strip .wrap { display: flex; gap: 14px 32px; flex-wrap: wrap; align-items: center; justify-content: space-between; }
.strip p { margin: 0; font-size: 0.95rem; color: var(--text-2); }

/* Modelos */
.model-card { display: flex; flex-direction: column; gap: 14px; }
.model-card .name { font-family: var(--mono); font-size: 1.02rem; font-weight: 600; color: var(--text); margin: 0; }
.model-card dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; font-size: 0.85rem; align-items: center; }
.model-card dt { color: var(--text-3); font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; }
.model-card dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }
.model-card .tags { display: flex; gap: 6px; flex-wrap: wrap; }
.skeleton { height: 220px; border-radius: var(--radius); background: linear-gradient(90deg, var(--surface), var(--surface-2), var(--surface)); background-size: 200% 100%; animation: shimmer 1.4s linear infinite; border: 1px solid var(--line); }
@keyframes shimmer { to { background-position: -200% 0; } }

/* Cómo funciona */
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; counter-reset: step; position: relative; }
.steps li { display: grid; grid-template-columns: 64px 1fr; gap: 20px; padding: 0 0 36px; position: relative; }
.steps li:last-child { padding-bottom: 0; }
.steps li::before { content: ""; position: absolute; left: 31px; top: 54px; bottom: 6px; border-left: 2px dashed var(--line-strong); }
.steps li:last-child::before { display: none; }
.step-n { counter-increment: step; width: 64px; height: 64px; border-radius: 50%; border: 2px solid var(--accent); display: grid; place-items: center; font-family: var(--mono); font-weight: 700; font-size: 1.2rem; color: var(--accent-text); background: var(--bg); position: relative; z-index: 1; }
.step-n::after { content: counter(step); }
.steps h3 { margin-top: 10px; }
.steps p { color: var(--text-2); margin: 0; max-width: 46em; }

/* Ventajas */
.adv { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); }
.adv .card p { color: var(--text-2); margin: 0; }
.adv .ico { width: 40px; height: 40px; margin-bottom: 14px; color: var(--accent-text); }

/* Precios */
.price-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 150px), 1fr)); margin: 22px 0; }
.price-chip { text-align: center; padding: 22px 12px; border: 1px dashed var(--line-strong); border-radius: var(--radius); background: var(--surface); }
.price-chip strong { display: block; font-size: 1.9rem; letter-spacing: -0.02em; }
.price-chip span { font-size: 0.82rem; color: var(--text-3); }
.pricing-cols { display: grid; gap: 24px; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; }

/* Seguridad / FAQ */
.sec-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.sec-list li { display: grid; grid-template-columns: 28px 1fr; gap: 12px; color: var(--text-2); }
.sec-list li svg { width: 22px; height: 22px; color: var(--accent-text); margin-top: 2px; }
.sec-list strong { color: var(--text); }
.faq details { border-bottom: 1px dashed var(--line-strong); padding: 4px 0; }
.faq summary { cursor: pointer; padding: 16px 0; font-weight: 600; font-size: 1.05rem; list-style: none; display: flex; justify-content: space-between; gap: 16px; min-height: 44px; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--mono); color: var(--accent-text); font-size: 1.4rem; transition: transform 0.2s ease; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--text-2); margin: 0 0 18px; max-width: 48em; }

.final-cta { text-align: center; }
.final-cta .card { padding: 56px 24px; background: linear-gradient(180deg, var(--surface), var(--bg-2)); }
.final-cta p { color: var(--text-2); max-width: 34em; margin: 0 auto 24px; font-size: 1.1rem; }

footer { border-top: 1px solid var(--line); padding: 36px 0 60px; color: var(--text-3); font-size: 0.9rem; }
footer .wrap { display: flex; gap: 16px 32px; flex-wrap: wrap; justify-content: space-between; align-items: flex-start; }
footer ul { list-style: none; padding: 0; margin: 0; display: flex; gap: 8px 22px; flex-wrap: wrap; }
footer a { color: var(--text-2); }

@media (max-width: 920px) {
  .hero-grid, .pricing-cols { grid-template-columns: 1fr; }
  .hero-art { max-width: 520px; margin-inline: auto; }
}
@media (max-width: 760px) {
  section { padding: 64px 0; }
  .menu-btn { display: inline-grid; }
  .nav-links { position: absolute; inset: 64px 0 auto 0; background: var(--bg); border-bottom: 1px solid var(--line); padding: 10px var(--gutter) 18px; display: none; flex-direction: column; align-items: stretch; }
  .nav-links.open { display: flex; }
  .nav-links .btn { margin-top: 6px; }
  .steps li { grid-template-columns: 48px 1fr; gap: 14px; }
  .step-n { width: 48px; height: 48px; font-size: 1rem; }
  .steps li::before { left: 23px; top: 42px; }
}
.not-found { min-height: 80vh; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; }