/* ============================================================
   BitHero — Sitio web (pre-lanzamiento)
   Tokens y reglas derivados de DESIGN.md (brand book oficial).
   Dark-first. Paleta naranja #E7872B / oscuro #242424. Montserrat.
   ============================================================ */

:root {
  /* Estructura (DESIGN §04) */
  --bg: #242424;
  --surface: #2E2E2E;
  --surface-2: #3A3A3A;
  --border: #606161;

  /* Acentos */
  --orange: #E7872B;
  --orange-bright: #F79537;
  --red: #EE3233;
  --red-deep: #DB2327;

  /* Texto (no #fff puro — anti-fatiga, 777-html-output-quality) */
  --text: #ECECEC;
  --text-dim: #C9C9C9;
  --text-display: #DEDEDE;
  --text-disabled: #606161;
  --accent-bold: var(--orange);

  --maxw: 1120px;
  --radius: 16px;
  --radius-sm: 11px;
  --ease-back: cubic-bezier(.34, 1.56, .64, 1);
  --shadow: 0 10px 34px rgba(0, 0, 0, .42);
  --font: "Montserrat", "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  font-family: var(--font);
  font-weight: 300;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Grano estático sutil (DESIGN §12: 3-5%) + viñeteado */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.045'/%3E%3C/svg%3E");
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background: radial-gradient(ellipse at 50% 38%, transparent 55%, rgba(0, 0, 0, .34) 100%);
}

main, header, footer { position: relative; z-index: 2; }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

/* ---------- Tipografía ---------- */
h1, h2, h3 { font-weight: 800; line-height: 1.08; letter-spacing: -.01em; color: var(--text-display); }
h2 { font-size: clamp(28px, 4.6vw, 50px); line-height: 1.14; }
h3 { font-size: clamp(19px, 2.4vw, 24px); font-weight: 700; line-height: 1.25; }
p { margin-bottom: 14px; }
strong { color: var(--accent-bold); font-weight: 600; }

.eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 14px;
  display: inline-block;
}

.lead { font-size: clamp(17px, 2vw, 20px); color: var(--text-dim); max-width: 64ch; }
.muted { color: var(--text-dim); }
.center { text-align: center; }
.center .lead { margin-left: auto; margin-right: auto; }

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(30, 30, 30, .78);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(96, 97, 97, .35);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}
.nav-logo img { height: 30px; width: auto; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  list-style: none;
}
.nav-links a {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text-dim);
  transition: color .2s ease;
  position: relative;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -7px;
  width: 0; height: 2px;
  background: var(--orange);
  transition: width .25s var(--ease-back);
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--text); margin: 5px 0;
  transition: transform .3s ease, opacity .3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .01em;
  padding: 14px 28px;
  border-radius: 999px;
  cursor: pointer;
  transition: transform .2s var(--ease-back), background .2s ease, color .2s ease, box-shadow .2s ease;
  border: 2px solid var(--orange);
}
.btn-fill { background: var(--orange); color: #242424; }
.btn-fill:hover { background: var(--orange-bright); transform: translateY(-2px); box-shadow: 0 8px 26px rgba(231, 135, 43, .38); }
.btn-outline { background: transparent; color: var(--orange); }
.btn-outline:hover { background: var(--orange); color: #242424; transform: translateY(-2px); }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }
.btn-row.center { justify-content: center; }

/* ---------- Secciones ---------- */
section { padding: clamp(54px, 8vw, 96px) 0; }
.section-head { max-width: 60ch; margin-bottom: 40px; }
.section-head.center { margin-left: auto; margin-right: auto; }

/* ---------- Hero ---------- */
.hero {
  padding-top: clamp(40px, 6vw, 72px);
  padding-bottom: clamp(40px, 6vw, 72px);
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 40px;
  align-items: center;
}
.hero-wordmark { width: min(380px, 78%); margin-bottom: 26px; }
.hero h1 {
  font-size: clamp(30px, 5vw, 52px);
  margin-bottom: 18px;
  text-wrap: balance;
}
.hero h1 .pop { color: var(--orange); }
.hero .lead { margin-bottom: 30px; }
.tagline {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .42em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 22px;
}

/* Mascota sobre dark: medallón gris (DESIGN §05) — el traje/pelo negro del
   personaje se funde con #242424; el medallón gris lo hace legible. */
.mascot-stage {
  position: relative;
  display: grid;
  place-items: center;
  padding: 24px 12px;
}
.mascot-stage::before {            /* medallón gris — debe ser MÁS alto que la mascota */
  content: "";
  position: absolute;
  z-index: 0;
  width: min(370px, 88%);
  aspect-ratio: .62;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  border-radius: 48% / 46%;
  background: radial-gradient(ellipse 60% 58% at 50% 48%, #5b5c5a 0%, #4a4b49 48%, rgba(40, 40, 39, 0) 78%);
}
.mascot-stage::after {             /* halo naranja de marca encima del gris */
  content: "";
  position: absolute;
  z-index: 0;
  width: min(300px, 72%);
  aspect-ratio: 1;
  left: 50%; top: 44%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(circle at 50% 45%, rgba(231, 135, 43, .30), rgba(231, 135, 43, 0) 62%);
  filter: blur(6px);
}
.mascot-stage img {
  position: relative;
  z-index: 1;
  width: min(330px, 82%);
  filter: drop-shadow(0 16px 26px rgba(0, 0, 0, .5));
  animation: float 5.5s ease-in-out infinite;
}
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

/* Insignia circular para la cabeza (sección comunidad) */
.head-badge {
  width: min(230px, 64%);
  aspect-ratio: 1;
  margin: 0 auto;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 42%, rgba(231, 135, 43, .22), transparent 60%),
    radial-gradient(circle at 50% 50%, #5b5c5a 0%, #454644 64%, #3a3b39 100%);
  border: 1px solid rgba(96, 97, 97, .5);
  box-shadow: var(--shadow);
}
.head-badge img { width: 76%; }

/* Página interior — hero compacto */
.page-hero { padding: clamp(48px, 7vw, 88px) 0 clamp(30px, 4vw, 50px); text-align: center; }
.page-hero h1 { font-size: clamp(32px, 6vw, 60px); margin-bottom: 16px; }

/* ---------- Tarjetas ---------- */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--surface);
  border: 1px solid rgba(96, 97, 97, .4);
  border-radius: var(--radius);
  padding: 28px 26px;
  transition: transform .3s var(--ease-back), border-color .3s ease, box-shadow .3s ease;
}
.card:hover {
  transform: translateY(-5px);
  border-color: rgba(231, 135, 43, .5);
  box-shadow: var(--shadow);
}
.card .icon {
  width: 48px; height: 48px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: rgba(231, 135, 43, .14);
  color: var(--orange);
  margin-bottom: 18px;
}
.card .icon svg { width: 26px; height: 26px; }
.card h3 { color: var(--text); margin-bottom: 10px; }
.card p { font-size: 15px; color: var(--text-dim); margin-bottom: 0; line-height: 1.78; }
.card .tag {
  display: inline-block;
  font-size: 11px; font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 12px;
}

/* ---------- Pasos numerados ---------- */
.steps { counter-reset: step; display: grid; gap: 20px; }
.step {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 22px;
  align-items: start;
  background: var(--surface);
  border: 1px solid rgba(96, 97, 97, .4);
  border-radius: var(--radius);
  padding: 24px 26px;
}
.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-weight: 800;
  font-size: 26px;
  color: var(--orange);
  line-height: 1;
  padding-top: 2px;
}
.step h3 { color: var(--text); margin-bottom: 6px; }
.step p { font-size: 15px; color: var(--text-dim); margin-bottom: 0; }

/* ---------- Semáforo de jugada (sin inventar verde — DESIGN §15.8) ---------- */
.states { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.state {
  border-radius: var(--radius);
  padding: 24px 22px;
  border: 1px solid rgba(96, 97, 97, .4);
  background: var(--surface);
  text-align: center;
}
.state .dot {
  width: 40px; height: 40px; border-radius: 50%;
  margin: 0 auto 16px;
  display: grid; place-items: center;
  font-weight: 800; color: #242424;
}
.state.win .dot { background: var(--orange); box-shadow: 0 0 0 6px rgba(231, 135, 43, .18); }
.state.unique .dot { background: var(--orange-bright); opacity: .85; }
.state.dup .dot { background: var(--red); color: #fff; }
.state h3 { font-size: 17px; color: var(--text); }
.state p { font-size: 14px; color: var(--text-dim); margin: 6px 0 0; }

/* ---------- Demo de jugada (cuenta regresiva — NO es lanzamiento) ---------- */
.demo {
  background: var(--surface);
  border: 1px solid rgba(231, 135, 43, .3);
  border-radius: var(--radius);
  padding: 34px;
  text-align: center;
  max-width: 460px;
  margin: 0 auto;
}
.demo .demo-label {
  font-size: 11px; font-weight: 700; letter-spacing: .2em; text-transform: uppercase;
  color: var(--orange); display: block; margin-bottom: 14px;
}
.demo .clock {
  font-size: clamp(48px, 12vw, 76px);
  font-weight: 800;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
  line-height: 1;
}
.demo .bar {
  height: 8px; border-radius: 999px;
  background: var(--surface-2);
  overflow: hidden; margin: 22px 0 10px;
}
.demo .bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--orange), var(--orange-bright)); width: 100%; transform-origin: left; }
.demo small { color: var(--text-dim); font-size: 13px; }

/* ---------- Rangos ---------- */
.ranks { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.rank {
  text-align: center;
  padding: 26px 16px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid rgba(96, 97, 97, .4);
  position: relative;
}
.rank .num { font-size: 12px; font-weight: 700; color: var(--orange); letter-spacing: .14em; }
.rank h3 { color: var(--text); font-size: 20px; margin: 8px 0 6px; }
.rank p { font-size: 13.5px; color: var(--text-dim); margin: 0; }
.rank-arrow { color: var(--border); }

/* ---------- Niveles de membresía (solo existencia, sin cifras) ---------- */
.tiers { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.tier {
  border-radius: var(--radius);
  border: 1px solid rgba(96, 97, 97, .4);
  background: var(--surface);
  padding: 26px 22px;
  text-align: center;
}
.tier.feat { border-color: var(--orange); background: linear-gradient(180deg, rgba(231,135,43,.12), var(--surface) 60%); }
.tier h3 { color: var(--orange); font-size: 22px; letter-spacing: .04em; }
.tier p { font-size: 14px; color: var(--text-dim); margin: 10px 0 0; }
.tier .ribbon {
  font-size: 10px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: #242424; background: var(--orange); border-radius: 999px;
  padding: 3px 12px; display: inline-block; margin-bottom: 12px;
}

/* ---------- Manifiesto ---------- */
.manifesto {
  text-align: center;
  background:
    radial-gradient(circle at 50% 0%, rgba(231, 135, 43, .12), transparent 60%),
    var(--surface);
  border-top: 1px solid rgba(96, 97, 97, .35);
  border-bottom: 1px solid rgba(96, 97, 97, .35);
}
.manifesto blockquote {
  font-size: clamp(26px, 5vw, 48px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -.01em;
  color: var(--text-display);
  max-width: 16ch;
  margin: 0 auto;
}
.manifesto blockquote .pop { color: var(--orange); }
.manifesto cite { display: block; margin-top: 22px; color: var(--text-dim); font-style: normal; font-size: 14px; letter-spacing: .04em; }

/* ---------- Bloque CTA ---------- */
.cta-block {
  text-align: center;
  background: linear-gradient(135deg, var(--orange) 0%, var(--orange-bright) 100%);
  border-radius: 26px;
  padding: clamp(40px, 6vw, 64px) 28px;
  color: #242424;
}
.cta-block h2 { color: #242424; margin-bottom: 12px; }
.cta-block p { color: #3a2710; max-width: 52ch; margin: 0 auto 26px; }
.cta-block .btn-dark { background: #242424; color: var(--orange); border-color: #242424; }
.cta-block .btn-dark:hover { background: #000; color: var(--orange-bright); transform: translateY(-2px); }

/* Redes — placeholder desactivado (aún no hay cuentas) */
.socials { display: flex; gap: 14px; justify-content: center; margin-top: 28px; }
.socials .soc {
  width: 46px; height: 46px; border-radius: 50%;
  display: grid; place-items: center;
  background: rgba(36, 36, 36, .12);
  border: 1px solid rgba(36, 36, 36, .28);
  color: #3a2710;
  cursor: not-allowed;
  opacity: .55;
  position: relative;
}
.socials .soc svg { width: 20px; height: 20px; }
.socials-note { font-size: 12px; color: #3a2710; margin-top: 12px; letter-spacing: .02em; }

/* ---------- FAQ ---------- */
.faq { max-width: 780px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid rgba(96, 97, 97, .4); }
.faq-q {
  width: 100%;
  background: none; border: 0; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 22px 4px;
  font-family: var(--font); font-weight: 600; font-size: 17px;
  color: var(--text); text-align: left;
}
.faq-q .chev { color: var(--orange); transition: transform .3s ease; flex-shrink: 0; }
.faq-item.open .faq-q .chev { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-a p { padding: 0 4px 22px; color: var(--text-dim); font-size: 15.5px; margin: 0; }

/* ---------- Disclaimers (OC06 — en toda página) ---------- */
.legal-band {
  background: var(--surface);
  border: 1px solid rgba(96, 97, 97, .4);
  border-radius: var(--radius);
  padding: 26px 28px;
}
.legal-band h3 { color: var(--text); font-size: 17px; margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
.legal-band ul { list-style: none; display: grid; gap: 10px; }
.legal-band li { font-size: 14px; color: var(--text-dim); padding-left: 26px; position: relative; line-height: 1.7; }
.legal-band li::before { content: "•"; color: var(--orange); position: absolute; left: 8px; font-weight: 700; }
.legal-band .resp { margin-top: 16px; font-size: 13.5px; color: var(--text-dim); border-top: 1px dashed rgba(96,97,97,.5); padding-top: 14px; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid rgba(96, 97, 97, .35);
  background: #1f1f1f;
  padding: 52px 0 30px;
}
.footer-top { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; margin-bottom: 36px; }
.footer-brand img { height: 30px; margin-bottom: 16px; }
.footer-brand p { font-size: 13.5px; color: var(--text-dim); max-width: 34ch; }
.footer-col h4 { font-size: 12px; letter-spacing: .16em; text-transform: uppercase; color: var(--orange); margin-bottom: 14px; }
.footer-col ul { list-style: none; display: grid; gap: 9px; }
.footer-col a, .footer-col span { font-size: 14px; color: var(--text-dim); transition: color .2s ease; }
.footer-col a:hover { color: var(--text); }
.footer-disc {
  font-size: 12px; color: var(--text-disabled);
  border-top: 1px solid rgba(96, 97, 97, .3);
  padding-top: 22px;
  line-height: 1.7;
}
.footer-disc strong { color: var(--text-dim); font-weight: 600; }
.footer-legal-links { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 10px; }
.footer-legal-links a { color: var(--text-disabled); font-size: 12px; }
.footer-legal-links a:hover { color: var(--orange); }

/* ---------- Reveal al hacer scroll ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s var(--ease-back); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero .lead { margin-left: auto; margin-right: auto; }
  .hero .btn-row { justify-content: center; }
  .mascot-stage { order: -1; }
  .grid-3, .grid-4, .ranks, .tiers, .states { grid-template-columns: repeat(2, 1fr); }
  .nav-links {
    position: fixed;
    inset: 70px 0 auto 0;
    flex-direction: column;
    background: rgba(28, 28, 28, .98);
    backdrop-filter: blur(14px);
    padding: 26px 22px 30px;
    gap: 20px;
    border-bottom: 1px solid rgba(96, 97, 97, .35);
    transform: translateY(-130%);
    transition: transform .34s var(--ease-back);
  }
  .nav-links.open { transform: none; }
  .nav-toggle { display: block; }
  .footer-top { flex-direction: column; gap: 30px; }
}
@media (max-width: 520px) {
  .grid-2, .grid-3, .grid-4, .ranks, .tiers, .states { grid-template-columns: 1fr; }
  body { font-size: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}