/* StopMotion Timeline — Landing
   Concepto: el fantasma del frame anterior. Presente = dorado (luz),
   pasado = acero frío (ghost). Fondo casi negro con tinte cálido en el hero. */

:root {
  --bg: #0a0b0e;
  --panel: #121319;
  --ink: #f1eee7;
  --dim: #9a958c;
  --gold: #e8b549;
  --gold-soft: #f0c969;
  --steel: #7d99c0;
  --line: rgba(255, 255, 255, 0.08);
  --r: 16px;
  --maxw: 1120px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.display { font-family: 'Bricolage Grotesque', 'Inter', sans-serif; font-weight: 800; line-height: 1.02; letter-spacing: -0.02em; }

a { color: inherit; text-decoration: none; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px;
  backdrop-filter: blur(12px);
  background: linear-gradient(to bottom, rgba(10,11,14,0.85), rgba(10,11,14,0));
  transition: background 0.3s;
}
.nav.scrolled { background: rgba(10,11,14,0.9); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; }
.brand-mark { width: 26px; height: 26px; }
.nav-cta {
  padding: 9px 18px; border-radius: 999px; font-weight: 600; font-size: 14px;
  background: var(--gold); color: #1a1205; transition: transform 0.15s, box-shadow 0.2s;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(232,181,73,0.3); }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 150px 0 90px; overflow: hidden; }
.hero::before {
  content: ''; position: absolute; top: -10%; left: 50%; transform: translateX(-50%);
  width: 900px; height: 700px; pointer-events: none;
  background: radial-gradient(ellipse at center, rgba(232,181,73,0.12), transparent 62%);
}
.hero-grid {
  position: relative; display: grid; grid-template-columns: 1.05fr 0.95fr;
  gap: 56px; align-items: center;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; letter-spacing: 0.04em; color: var(--steel);
  border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; margin-bottom: 24px;
}
.eyebrow b { color: var(--gold); font-weight: 600; }
.hero h1 { font-size: clamp(40px, 6vw, 68px); margin-bottom: 22px; }
.hero h1 .ghost { color: var(--steel); position: relative; }
.hero p.lead { font-size: 19px; color: var(--dim); max-width: 30em; margin-bottom: 34px; }
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 14px 26px; border-radius: 12px; font-weight: 650; font-size: 15px;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
}
.btn-primary { background: var(--gold); color: #1a1205; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(232,181,73,0.32); }
.btn-ghost { border: 1px solid var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--steel); background: rgba(125,153,192,0.08); }
.hero-note { font-size: 13px; color: var(--dim); margin-top: 16px; }

/* ---------- Phone mockup ---------- */
.phone {
  position: relative; width: 290px; margin: 0 auto;
  aspect-ratio: 9 / 19.3; border-radius: 38px;
  background: #050608; border: 1px solid #23252e;
  box-shadow: 0 40px 90px rgba(0,0,0,0.6), inset 0 0 0 8px #0c0d11;
  padding: 9px;
}
.phone-screen { position: relative; width: 100%; height: 100%; border-radius: 30px; overflow: hidden; background: #0b0c0f; }
.viewfinder { position: absolute; inset: 0; background: linear-gradient(160deg, #1d2430, #0e1116); }
/* Escena ilustrada: brote que crece (clásico de timelapse) */
.scene { position: absolute; inset: 0; display: grid; place-items: end center; padding-bottom: 22%; }
.sprout { width: 80px; height: 60%; }
.ghost-frame {
  position: absolute; inset: 0; display: grid; place-items: end center; padding-bottom: 22%;
  opacity: 0.45; filter: hue-rotate(-30deg) saturate(0.6);
  mix-blend-mode: screen;
}
.ghost-frame .sprout { filter: brightness(1.4); }
/* Chrome de cámara dentro del mockup */
.cam-chrome { position: absolute; inset: 0; pointer-events: none; }
.opacity-rail {
  position: absolute; left: 10px; top: 50%; transform: translateY(-50%);
  width: 5px; height: 130px; border-radius: 999px; background: rgba(255,255,255,0.15);
}
.opacity-rail::after {
  content: ''; position: absolute; left: -4px; bottom: 40%;
  width: 13px; height: 13px; border-radius: 50%; background: var(--gold);
  box-shadow: 0 0 12px rgba(232,181,73,0.7);
}
.cam-top { position: absolute; top: 14px; left: 14px; right: 14px; display: flex; justify-content: space-between; }
.chip { font-size: 10px; padding: 5px 10px; border-radius: 999px; background: rgba(0,0,0,0.5);
  backdrop-filter: blur(6px); color: #e9eaee; border: 1px solid rgba(255,255,255,0.1); }
.cam-bottom { position: absolute; bottom: 18px; left: 0; right: 0; display: flex; align-items: center; justify-content: center; gap: 30px; }
.shutter { width: 56px; height: 56px; border-radius: 50%; background: var(--gold); border: 4px solid rgba(255,255,255,0.25);
  box-shadow: 0 0 0 2px var(--gold); }
.cam-mini { width: 34px; height: 34px; border-radius: 50%; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.15); }

/* ---------- Sección genérica ---------- */
section.block { padding: 90px 0; position: relative; }
.section-head { max-width: 620px; margin-bottom: 56px; }
.section-head .k { font-size: 13px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gold); margin-bottom: 14px; }
.section-head h2 { font-size: clamp(30px, 4.5vw, 46px); margin-bottom: 16px; }
.section-head p { font-size: 17px; color: var(--dim); }

/* Reveal al scroll */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2,0.7,0.2,1); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* ---------- Features alternadas con mockups ---------- */
.feature { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; padding: 46px 0; }
.feature:nth-child(even) .feature-media { order: -1; }
.feature h3 { font-size: 26px; margin-bottom: 14px; font-family: 'Bricolage Grotesque', sans-serif; font-weight: 700; letter-spacing: -0.01em; }
.feature p { color: var(--dim); font-size: 16px; }
.feature-media {
  position: relative; aspect-ratio: 4 / 3; border-radius: var(--r); overflow: hidden;
  background: linear-gradient(150deg, #14161d, #0c0e13); border: 1px solid var(--line);
  display: grid; place-items: center;
}

/* Mini-demos dentro de feature-media */
.demo-onion { position: relative; width: 70%; aspect-ratio: 1; }
.demo-onion .layer { position: absolute; inset: 0; border-radius: 12px; border: 2px solid; display: grid; place-items: center; font-weight: 700; font-size: 13px; }
.demo-onion .l1 { border-color: var(--steel); color: var(--steel); transform: translate(-14px, -14px); opacity: 0.5; }
.demo-onion .l2 { border-color: var(--steel); color: var(--steel); transform: translate(-7px, -7px); opacity: 0.7; }
.demo-onion .l3 { border-color: var(--gold); color: var(--gold); background: rgba(232,181,73,0.06); }

.demo-timeline { display: flex; gap: 6px; align-items: flex-end; height: 60%; }
.demo-timeline span { width: 18px; border-radius: 4px 4px 0 0; background: linear-gradient(var(--steel), rgba(125,153,192,0.2)); }

.demo-markers { position: relative; width: 70%; aspect-ratio: 4/3; border: 1px solid var(--line); border-radius: 12px; }
.demo-markers i { position: absolute; width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--gold); box-shadow: 0 0 10px rgba(232,181,73,0.5); }

.demo-export { display: flex; gap: 10px; align-items: center; }
.demo-export .pill { padding: 8px 14px; border-radius: 999px; border: 1px solid var(--line); font-size: 13px; font-weight: 600; }
.demo-export .pill.on { background: var(--gold); color: #1a1205; border-color: var(--gold); }

/* ---------- Pasos ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.step { padding: 28px; border: 1px solid var(--line); border-radius: var(--r); background: var(--panel); position: relative; }
.step .num { font-family: 'Bricolage Grotesque', sans-serif; font-weight: 800; font-size: 40px; color: var(--gold); opacity: 0.9; margin-bottom: 10px; }
.step h4 { font-size: 18px; margin-bottom: 8px; }
.step p { color: var(--dim); font-size: 15px; }

/* ---------- Privacidad / cámara ---------- */
.privacy { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center;
  border: 1px solid var(--line); border-radius: 22px; padding: 40px; background: linear-gradient(150deg, rgba(125,153,192,0.06), transparent); }
.privacy h2 { font-size: 30px; margin-bottom: 14px; }
.privacy p { color: var(--dim); }
.privacy ul { list-style: none; margin-top: 18px; display: grid; gap: 12px; }
.privacy li { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; }
.privacy li svg { flex: none; margin-top: 3px; color: var(--gold); }

/* ---------- CTA final ---------- */
.final { text-align: center; padding: 110px 0; position: relative; }
.final::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at center, rgba(232,181,73,0.1), transparent 60%); pointer-events: none; }
.final h2 { font-size: clamp(34px, 5vw, 56px); margin-bottom: 20px; }
.final p { color: var(--dim); font-size: 18px; margin-bottom: 32px; }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--line); padding: 40px 0; color: var(--dim); font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .hero-grid, .feature, .privacy { grid-template-columns: 1fr; }
  .hero { padding-top: 120px; }
  .hero-media { order: -1; margin-bottom: 20px; }
  .feature:nth-child(even) .feature-media { order: 0; }
  .steps { grid-template-columns: 1fr; }
  .phone { width: 240px; }
}