/**
 * design-system.css — Infinity Roma Group
 * Identidad v3 · "Luxo Dark Gold"
 * Fondo casi negro · dorado metálico · tipografía serif editorial.
 * Tokens y utilidades base compartidas por todo el sitio.
 */

:root {
  /* ── Oro metálico (acento de marca) ───────────────────────── */
  --gold-50:  #FBF3D6;
  --gold-100: #F6E6B0;
  --gold-200: #ECD089;
  --gold-300: #E0BC6A;
  --gold-400: #D4AF52;   /* dorado principal */
  --gold-500: #C49A3C;
  --gold-600: #A87C2A;
  --gold-700: #7E5A1C;
  --gold-rgb: 212, 175, 82;
  --gold-soft-rgb: 246, 230, 176;

  /* Gradiente metálico (botones, bordes, glyphs) */
  --gold-metal: linear-gradient(135deg,
      #8C6418 0%, #C49A3C 22%, #F3DE94 46%,
      #FFF7DC 52%, #E7C871 60%, #B8902E 82%, #7E5A1C 100%);
  --gold-line: linear-gradient(90deg,
      rgba(212,175,82,0) 0%, rgba(212,175,82,0.9) 50%, rgba(212,175,82,0) 100%);
  --gold-text: linear-gradient(180deg, #F6E6B0 0%, #D4AF52 48%, #A87C2A 100%);

  /* ── Tinta / fondos (obsidiana cálida) ─────────────────────── */
  --ink-1000: #000000;
  --ink-950:  #050505;
  --ink-900:  #08080A;   /* fondo base */
  --ink-850:  #0C0C0F;
  --ink-800:  #111114;
  --ink-750:  #17171B;   /* superficie de tarjeta */
  --ink-700:  #1F1F24;

  /* ── Texto ─────────────────────────────────────────────────── */
  --fg-1: #F7F4EC;       /* títulos sobre oscuro */
  --fg-2: #D9D6CC;       /* cuerpo */
  --fg-3: #9A968C;       /* secundario */
  --fg-4: #6A675F;       /* sutil */

  /* ── Líneas / bordes ───────────────────────────────────────── */
  --line:        rgba(212, 175, 82, 0.14);
  --line-soft:   rgba(255, 255, 255, 0.06);
  --line-strong: rgba(212, 175, 82, 0.32);

  /* Compatibilidad con clases heredadas */
  --brand: var(--gold-400);
  --brand-rgb: var(--gold-rgb);
  --brand-soft-rgb: var(--gold-soft-rgb);
  --silver-200: #E7E4DB;
  --silver-300: #C4C0B6;
  --silver-400: #9A968C;
  --silver-500: #7C7970;
  --silver-700: #3A382F;

  --glow-gold: 0 0 0 1px rgba(var(--gold-rgb), 0.30), 0 18px 48px -18px rgba(var(--gold-rgb), 0.45);
  --glow-green: var(--glow-gold); /* alias heredado */
  --shadow-card: 0 1px 0 rgba(255,255,255,0.03) inset, 0 28px 60px -32px rgba(0,0,0,0.9);

  /* ── Tipografía ────────────────────────────────────────────── */
  --font-display: 'Cormorant Garamond', 'Times New Roman', Georgia, serif;
  --font-body: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --tracking-label: 0.26em;

  /* ── Movimiento ────────────────────────────────────────────── */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);

  /* Layout */
  --maxw: 1240px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--ink-900);
  color: var(--fg-2);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body.mobile-nav-open {
  overflow: hidden;
}

::selection { background: rgba(var(--gold-rgb), 0.85); color: var(--ink-1000); }

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

/* ── Atmósfera de fondo ──────────────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(1100px 720px at 50% -8%, rgba(var(--gold-rgb), 0.10), transparent 62%),
    radial-gradient(900px 620px at 100% 108%, rgba(var(--gold-rgb), 0.05), transparent 60%),
    linear-gradient(180deg, #050506 0%, var(--ink-900) 30%, #060607 100%);
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(212,175,82,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212,175,82,0.025) 1px, transparent 1px);
  background-size: 132px 132px, 132px 132px;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(ellipse at center, black 0%, transparent 78%);
  mask-image: radial-gradient(ellipse at center, black 0%, transparent 78%);
  z-index: 0;
}

/* ── Tipografía base ─────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--fg-1);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: 0.005em;
  margin: 0;
}

h1 { font-size: clamp(2.6rem, 5.2vw, 4.4rem); }
h2 { font-size: clamp(2rem, 3.6vw, 3rem); }
h3 { font-size: clamp(1.35rem, 2vw, 1.7rem); }

p { margin: 0 0 1rem; }
strong { color: var(--fg-1); font-weight: 600; }

/* Texto con relleno dorado (titulares destacados) */
.gold-text {
  background: var(--gold-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* Eyebrow / micro-etiqueta */
.eyebrow,
.mini-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--gold-300);
  margin: 0 0 18px;
}
.eyebrow::before {
  content: '';
  width: 26px;
  height: 1px;
  background: var(--gold-metal);
}

/* Regla / divisor dorado */
.gold-rule {
  height: 1px;
  border: 0;
  background: var(--gold-line);
}

/* ── Animaciones de entrada (controladas por js/main.js) ─────── */
.rise {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 760ms var(--ease-out), transform 760ms var(--ease-out);
}
.rise.is-visible { opacity: 1; transform: none; }
.rise.d1 { transition-delay: 0.06s; }
.rise.d2 { transition-delay: 0.14s; }
.rise.d3 { transition-delay: 0.24s; }
.rise.d4 { transition-delay: 0.36s; }
.rise.d5 { transition-delay: 0.5s; }

@media (prefers-reduced-motion: reduce) {
  .rise { opacity: 1; transform: none; transition: none; }
}

/* ── Layout ──────────────────────────────────────────────────── */
.container {
  position: relative;
  z-index: 1;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 40px 48px 64px;
}

@media (max-width: 900px) {
  .container { padding: 28px 22px 48px; }
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}