/**
 * Pantheon Treatment — Presency cinematic layer
 * Ambient depth, mesh glow, grain, purposeful motion.
 * Requires tokens.css loaded first.
 */

/* ── Global atmosphere ─────────────────────────────────────────── */
.pantheon-root {
  position: relative;
  isolation: isolate;
}

.pantheon-grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.32;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  background-size: 180px 180px;
  mix-blend-mode: overlay;
}

.pantheon-mesh {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 90% 70% at 50% -10%, var(--gold-glow) 0%, transparent 55%),
    radial-gradient(ellipse 60% 50% at 85% 60%, var(--trust-muted) 0%, transparent 50%),
    radial-gradient(ellipse 50% 40% at 10% 80%, rgba(193, 123, 92, 0.06) 0%, transparent 45%);
  animation: pantheonBreathe 12s var(--ease-lux) infinite;
}

.pantheon-constellation {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.45;
}

.pantheon-constellation line {
  stroke: var(--platinum);
  stroke-width: 0.5;
  opacity: 0.12;
}

.pantheon-constellation circle {
  fill: var(--gold);
  opacity: 0.35;
}

/* ── Nav glass ─────────────────────────────────────────────────── */
nav.pantheon-nav {
  backdrop-filter: blur(0);
  -webkit-backdrop-filter: blur(0);
}

nav.pantheon-nav.scrolled {
  background: rgba(7, 8, 10, 0.88);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border-bottom-color: var(--border-subtle);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

/* ── Hero cinematic ────────────────────────────────────────────── */
.pantheon-hero {
  position: relative;
}

.pantheon-hero .hero-headline em {
  background: linear-gradient(
    100deg,
    var(--gold) 20%,
    var(--gold-light) 45%,
    var(--platinum) 55%,
    var(--gold) 80%
  );
  background-size: 220% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: pantheonGoldSheen 9s ease-in-out infinite;
}

.pantheon-hero .hero-bg {
  background:
    radial-gradient(ellipse 70% 55% at 50% 42%, var(--gold-glow) 0%, transparent 68%),
    radial-gradient(ellipse 40% 30% at 72% 28%, var(--live-muted) 0%, transparent 70%);
  animation: pantheonBreathe 8s ease-in-out infinite;
}

/* ── Cards & surfaces ──────────────────────────────────────────── */
.pantheon-card {
  position: relative;
  transition: transform 0.45s var(--ease-lux), border-color 0.35s ease, box-shadow 0.45s var(--ease-lux);
}

.pantheon-card:hover {
  transform: translateY(-3px);
  border-color: var(--gold-border);
  box-shadow:
    0 20px 48px rgba(0, 0, 0, 0.45),
    0 0 40px var(--gold-glow),
    inset 0 1px 0 var(--gold-border);
}

.pantheon-rim-top::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--gold), var(--platinum), var(--gold), transparent);
  opacity: 0.7;
}

/* ── Buttons ───────────────────────────────────────────────────── */
.pantheon-btn-primary {
  position: relative;
  overflow: hidden;
}

.pantheon-btn-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -120%;
  width: 50%;
  height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, 0.45), transparent);
  transform: skewX(-18deg);
  transition: left 0.75s var(--ease-lux);
  pointer-events: none;
}

.pantheon-btn-primary:hover::after {
  left: 140%;
}

/* ── Section reveals ───────────────────────────────────────────── */
.pantheon-reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease-lux), transform 0.8s var(--ease-lux);
}

.pantheon-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── ROI calculator glow ───────────────────────────────────────── */
.pantheon-roi {
  box-shadow: 0 0 0 1px var(--urgency-border), 0 24px 64px rgba(0, 0, 0, 0.4);
}

.pantheon-roi .roi-loss {
  text-shadow: 0 0 40px var(--urgency-muted);
}

/* ── Proof stats pulse ───────────────────────────────────────────── */
.pantheon-stat {
  position: relative;
}

.pantheon-stat .proof-stat {
  text-shadow: 0 0 32px var(--gold-glow);
}

/* ── Dividers ──────────────────────────────────────────────────── */
.pantheon-divider {
  height: 1px;
  background: linear-gradient(to right, transparent, var(--platinum-muted), var(--gold-border), var(--platinum-muted), transparent);
  margin: 0 auto;
  max-width: 720px;
  opacity: 0.6;
}

/* ── Keyframes ─────────────────────────────────────────────────── */
@keyframes pantheonBreathe {
  0%, 100% { opacity: 0.85; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.02); }
}

@keyframes pantheonGoldSheen {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

@keyframes pantheonNodePulse {
  0%, 100% { opacity: 0.25; r: 2; }
  50% { opacity: 0.65; r: 3; }
}

/* ── Reduced motion ────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .pantheon-mesh,
  .pantheon-hero .hero-bg,
  .pantheon-hero .hero-headline em,
  .live-dot,
  .notif-dot {
    animation: none !important;
  }

  .pantheon-card:hover {
    transform: none;
  }

  .pantheon-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}