/* Serafino Speakers — estilos comunes. Escala de espaciado en base 8. */
/* Fuentes alojadas en la propia web (variables, subconjunto latino; licencia OFL) */
@font-face { font-family: "Montserrat"; font-style: normal; font-weight: 300 600; font-display: swap; src: url("/fonts/montserrat-latin.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-style: normal; font-weight: 400 600; font-display: swap; src: url("/fonts/inter-latin.woff2") format("woff2"); }

:root {
  --bg: #0a0a0d;
  --surface: #121218;
  --surface-2: #1a1a22;
  --line: rgba(255, 255, 255, 0.10);
  --text: #f3f1f6;
  --muted: #a9a4b4;
  --accent-1: #d0258f;
  --accent-2: #5b2bd1;
  --accent: #8f3fd8;
  --grad: linear-gradient(100deg, var(--accent-1), var(--accent-2));
  --s1: 8px; --s2: 16px; --s3: 24px; --s4: 32px; --s5: 40px; --s6: 48px; --s8: 64px; --s10: 80px; --s12: 96px; --s16: 128px;
  --wrap: 1200px;
  --radius: 16px;
  --font-display: "Montserrat", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 400 17px/1.65 var(--font-body); -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.skip { position: absolute; left: -9999px; top: var(--s2); background: var(--text); color: var(--bg); padding: var(--s1) var(--s2); border-radius: 8px; z-index: 100; }
.skip:focus { left: var(--s2); }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--s3); }
@media (min-width: 768px) { .wrap { padding: 0 var(--s5); } }

/* Tipografía */
h1, h2, h3 { font-family: var(--font-display); font-weight: 300; text-transform: uppercase; letter-spacing: 0.06em; line-height: 1.12; margin: 0; }
h1 { font-size: clamp(40px, 7vw, 88px); }
h2 { font-size: clamp(28px, 4vw, 48px); }
h3 { font-size: 20px; font-weight: 500; letter-spacing: 0.08em; }
p { margin: 0; }
.eyebrow { font: 600 13px/1 var(--font-display); letter-spacing: 0.24em; text-transform: uppercase; color: var(--muted); display: inline-flex; align-items: center; gap: var(--s2); }
.eyebrow::before { content: ""; width: 32px; height: 2px; background: var(--grad); }
.lead { font-size: clamp(18px, 2vw, 21px); color: var(--muted); max-width: 64ch; }
.stack > * + * { margin-top: var(--s3); }

/* Botones */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--s1); min-height: 48px; padding: 0 var(--s4); border-radius: 999px; font: 600 14px/1 var(--font-display); letter-spacing: 0.14em; text-transform: uppercase; text-decoration: none; transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease; }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 8px 32px rgba(143, 63, 216, 0.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(143, 63, 216, 0.5); }
.btn-ghost { border: 1px solid rgba(255,255,255,0.35); color: var(--text); }
.btn-ghost:hover { background: rgba(255,255,255,0.08); }
.actions { display: flex; flex-wrap: wrap; gap: var(--s2); }

/* Cabecera */
.site-header { position: fixed; inset: 0 0 auto 0; z-index: 50; transition: background-color .3s ease, border-color .3s ease; border-bottom: 1px solid transparent; }
.site-header.is-solid, .site-header.is-open { background: rgba(10, 10, 13, 0.92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom-color: var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand img { width: 176px; height: auto; }
.nav-links { display: flex; align-items: center; gap: var(--s4); list-style: none; margin: 0; padding: 0; }
.nav-links a:not(.btn) { font: 500 13px/1 var(--font-display); letter-spacing: 0.18em; text-transform: uppercase; text-decoration: none; color: var(--muted); transition: color .2s; }
.nav-links a:not(.btn):hover, .nav-links a[aria-current="page"] { color: var(--text); }
.nav-links .btn { min-height: 40px; padding: 0 var(--s3); font-size: 12px; }
.nav-toggle { display: none; width: 48px; height: 48px; border: 0; background: transparent; color: var(--text); cursor: pointer; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: currentColor; margin: 5px auto; transition: transform .2s, opacity .2s; }
@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav-links { position: fixed; inset: 72px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0; padding: var(--s2) var(--s3) var(--s4); background: rgba(10,10,13,0.97); border-bottom: 1px solid var(--line); transform: translateY(-8px); opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; }
  .site-header.is-open .nav-links { opacity: 1; transform: none; pointer-events: auto; }
  .nav-links li a:not(.btn) { display: block; padding: var(--s2) 0; border-bottom: 1px solid var(--line); font-size: 14px; }
  .nav-links li:last-child { margin-top: var(--s3); }
  .nav-links .btn { width: 100%; min-height: 48px; }
  .site-header.is-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .site-header.is-open .nav-toggle span:nth-child(2) { opacity: 0; }
  .site-header.is-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

/* Portada (hero) */
.hero { position: relative; min-height: 100svh; display: grid; align-items: end; padding: var(--s16) 0 var(--s12); overflow: hidden; isolation: isolate; }
.hero-media { position: absolute; inset: 0; z-index: -2; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(10,10,13,0.35) 0%, rgba(10,10,13,0.25) 40%, rgba(10,10,13,0.92) 100%), radial-gradient(120% 80% at 10% 100%, rgba(91,43,209,0.35), transparent 60%); }
.hero h1 { max-width: 12ch; }
.hero .lead { color: #d9d4e2; margin-top: var(--s3); }
.hero .actions { margin-top: var(--s5); }
.hero-sm { min-height: 72svh; }

/* Secciones */
.section { padding: var(--s12) 0; }
@media (min-width: 768px) { .section { padding: var(--s16) 0; } }
.section-alt { background: var(--surface); }
.section-head { max-width: 760px; }
.section-head h2 { margin-top: var(--s3); }
.section-head .lead { margin-top: var(--s3); }
.center { text-align: center; margin-left: auto; margin-right: auto; }
.center .eyebrow { justify-content: center; }

/* Manifiesto */
.manifesto { display: grid; gap: var(--s5); }
.manifesto .big { font: 300 clamp(22px, 2.8vw, 32px)/1.5 var(--font-display); color: var(--text); max-width: 34ch; }
.manifesto .body { color: var(--muted); max-width: 60ch; }
@media (min-width: 900px) { .manifesto { grid-template-columns: 1.2fr 1fr; gap: var(--s10); align-items: start; } }

/* Pilares */
.pillars { position: relative; isolation: isolate; overflow: hidden; }
.pillars-bg { position: absolute; inset: 0; z-index: -2; }
.pillars-bg img { width: 100%; height: 100%; object-fit: cover; }
.pillars::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(10,10,13,0.88), rgba(10,10,13,0.72) 50%, rgba(10,10,13,0.92)); }
.cards { display: grid; gap: var(--s3); margin-top: var(--s8); }
@media (min-width: 768px) { .cards { grid-template-columns: repeat(3, 1fr); } }
.card { background: rgba(18,18,24,0.72); border: 1px solid var(--line); border-radius: var(--radius); padding: var(--s5) var(--s4); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.card .icon { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 12px; background: linear-gradient(135deg, rgba(208,37,143,0.22), rgba(91,43,209,0.22)); border: 1px solid rgba(255,255,255,0.12); color: #fff; }
.card .icon svg { width: 24px; height: 24px; }
.card h3 { margin-top: var(--s3); }
.card p { margin-top: var(--s2); color: var(--muted); }

/* Producto destacado */
.feature { display: grid; gap: var(--s6); align-items: center; }
@media (min-width: 900px) { .feature { grid-template-columns: 1fr 1fr; gap: var(--s10); } .feature.reverse > :first-child { order: 2; } }
.media-frame { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); background: var(--surface-2); }
.media-frame img { width: 100%; height: 100%; object-fit: cover; }
.tags { display: flex; flex-wrap: wrap; gap: var(--s1); list-style: none; padding: 0; margin: var(--s4) 0 0; }
.tags li { font: 500 12px/1 var(--font-display); letter-spacing: 0.16em; text-transform: uppercase; color: var(--text); padding: 12px var(--s2); border: 1px solid var(--line); border-radius: 999px; }
.price { display: flex; align-items: baseline; gap: var(--s2); margin-top: var(--s4); }
.price .label { font: 600 12px/1 var(--font-display); letter-spacing: 0.2em; text-transform: uppercase; color: var(--muted); }
.price .amount { font: 300 40px/1 var(--font-display); }
.price .amount small { font-size: 0.5em; vertical-align: super; }
.feature .actions { margin-top: var(--s4); }

/* Preguntas */
.faq { max-width: 860px; margin: var(--s8) auto 0; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: var(--s3); padding: var(--s3) 0; font: 500 18px/1.4 var(--font-body); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; flex: none; width: 12px; height: 12px; border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted); transform: rotate(45deg) translateY(-4px); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(-135deg) translateY(-2px); }
.faq details p { color: var(--muted); padding: 0 0 var(--s3); max-width: 70ch; }

/* Llamada final */
.cta { position: relative; overflow: hidden; text-align: center; }
.cta::before { content: ""; position: absolute; inset: auto -20% -60% -20%; height: 120%; background: radial-gradient(closest-side, rgba(143,63,216,0.28), transparent); z-index: -1; }
.cta .actions { justify-content: center; margin-top: var(--s5); }
.cta { isolation: isolate; }

/* Ficha técnica */
.split { display: grid; gap: var(--s6); }
@media (min-width: 900px) { .split { grid-template-columns: 1fr 1fr; gap: var(--s10); } }
.specs { width: 100%; border-collapse: collapse; margin-top: var(--s5); }
.specs th, .specs td { text-align: left; padding: var(--s2) 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.specs th { font: 600 12px/1.6 var(--font-display); letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); width: 42%; padding-right: var(--s3); }
.product-shot { background: #fff; border-radius: var(--radius); padding: var(--s4); }
.product-shot img { width: 100%; }
.highlights { display: grid; gap: var(--s3); margin-top: var(--s8); }
@media (min-width: 768px) { .highlights { grid-template-columns: repeat(2, 1fr); } }

/* Pie */
.site-footer { border-top: 1px solid var(--line); padding: var(--s8) 0 var(--s5); color: var(--muted); font-size: 15px; }
.footer-grid { display: grid; gap: var(--s4); align-items: center; }
@media (min-width: 768px) { .footer-grid { grid-template-columns: 1fr auto; } }
.site-footer .brand img { width: 152px; }
.site-footer .tagline { font: 500 12px/1.6 var(--font-display); letter-spacing: 0.2em; text-transform: uppercase; margin-top: var(--s2); }
.footer-links { display: flex; flex-wrap: wrap; gap: var(--s3); list-style: none; padding: 0; margin: 0; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { color: var(--text); }
.copy { margin-top: var(--s5); font-size: 13px; }

/* Aparición suave al hacer scroll */
.js .reveal { opacity: 0; transform: translateY(16px); transition: opacity .7s ease, transform .7s ease; }
.js .reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .js .reveal { opacity: 1; transform: none; transition: none; } .btn { transition: none; } }

/* Bloques con foto arriba y texto debajo */
.highlight h3 { margin-top: var(--s3); }
.highlight p { margin-top: var(--s2); color: var(--muted); max-width: 56ch; }
.media-frame.ratio { aspect-ratio: 16 / 10; }

/* Utilidades */
.mt-3 { margin-top: var(--s3); }
.mt-6 { margin-top: var(--s6); }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.cards-stack { grid-template-columns: 1fr !important; margin-top: 0; align-content: start; }
@media (min-width: 900px) { .split .cards-stack { margin-top: var(--s10); } }
.page-404 { min-height: 100svh; display: grid; align-items: center; }

/* Datos clave */
.glance { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--s2); margin: var(--s4) 0 0; }
.glance div { border: 1px solid var(--line); border-radius: 12px; padding: var(--s2); }
.glance dt { font: 600 11px/1.4 var(--font-display); letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); }
.glance dd { margin: var(--s1) 0 0; font: 300 22px/1.2 var(--font-display); white-space: nowrap; }

/* Miga de pan */
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: var(--s1); list-style: none; margin: 0; padding: 0; font: 500 12px/1 var(--font-display); letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); }
.breadcrumb li + li::before { content: "/"; margin-right: var(--s1); opacity: .6; }
.breadcrumb a { text-decoration: none; color: var(--muted); }
.breadcrumb a:hover { color: var(--text); }
.breadcrumb [aria-current] { color: var(--text); }

/* Preguntas: el h3 va dentro del summary (estructura de encabezados para buscadores) */
.faq-q { display: inline; margin: 0; font: 500 18px/1.4 var(--font-body); text-transform: none; letter-spacing: 0; }
.faq-more { color: var(--muted); }
.faq-more a { color: var(--text); text-underline-offset: 4px; }
.hero .breadcrumb { margin-bottom: var(--s1); }

/* Legibilidad del menú sobre fotos claras */
.site-header::before { content: ""; position: absolute; inset: 0 0 -24px 0; z-index: -1; background: linear-gradient(180deg, rgba(10,10,13,0.75), rgba(10,10,13,0)); pointer-events: none; transition: opacity .3s; }
.site-header.is-solid::before, .site-header.is-open::before { opacity: 0; }

/* Contacto */
.contact-box { display: grid; gap: var(--s4); align-items: center; border: 1px solid var(--line); border-radius: var(--radius); padding: var(--s5) var(--s4); background: linear-gradient(135deg, rgba(208,37,143,0.10), rgba(91,43,209,0.10)); }
@media (min-width: 900px) { .contact-box { grid-template-columns: 1fr auto; padding: var(--s8); } }
.contact-box .btn { text-transform: none; letter-spacing: 0.02em; font-size: 15px; }