/* Intro Sequence Overlay - first-visit cinematic onboarding */

.intro-sequence[hidden] {
  display: none;
}

body.intro-lock {
  overflow: hidden;
}

body.intro-active .intro-replay {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
}

.intro-sequence {
  position: fixed;
  inset: 0;
  z-index: 420;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 16% 18%, rgba(212, 175, 55, 0.16), transparent 42%),
    radial-gradient(circle at 84% 82%, rgba(80, 60, 25, 0.22), transparent 45%),
    linear-gradient(150deg, rgba(10, 10, 10, 0.96), rgba(4, 4, 4, 0.98));
  opacity: 0;
  visibility: hidden;
  transition: opacity 420ms ease, visibility 420ms ease;
}

.intro-sequence.is-visible {
  opacity: 1;
  visibility: visible;
}

.intro-backdrop {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.intro-orb {
  position: absolute;
  width: 38vw;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  filter: blur(28px);
  opacity: 0.2;
}

.intro-orb-a {
  top: -18%;
  left: -10%;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.7), transparent 62%);
  animation: introFloatA 12s ease-in-out infinite;
}

.intro-orb-b {
  bottom: -22%;
  right: -12%;
  background: radial-gradient(circle, rgba(150, 110, 45, 0.55), transparent 62%);
  animation: introFloatB 14s ease-in-out infinite;
}

.intro-orb-c {
  top: 18%;
  right: 20%;
  width: 16vw;
  background: radial-gradient(circle, rgba(200, 170, 90, 0.55), transparent 64%);
  animation: introFloatC 8s ease-in-out infinite;
}

.intro-shell {
  position: relative;
  width: min(1120px, 92vw);
  max-height: 90vh;
  overflow: auto;
  border: 1px solid rgba(212, 175, 55, 0.35);
  border-radius: 10px;
  background:
    linear-gradient(160deg, rgba(18, 18, 18, 0.95), rgba(8, 8, 8, 0.95));
  box-shadow:
    0 30px 70px rgba(0, 0, 0, 0.6),
    0 0 0 1px rgba(212, 175, 55, 0.08) inset;
  padding: 2rem 2rem 1.6rem;
}

.intro-kicker {
  margin: 0;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-primary);
}

.intro-title {
  margin: 0.3rem 0 0.6rem;
  font-size: clamp(1.8rem, 3.8vw, 3rem);
  line-height: 1.1;
  color: var(--color-text-primary);
}

.intro-lead {
  margin: 0 0 1.2rem;
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  max-width: 78ch;
}

.intro-stage {
  border: 1px solid var(--color-border-subtle);
  border-radius: 8px;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.01);
  margin-bottom: 1rem;
}

.intro-stage-label {
  margin: 0 0 0.3rem;
  color: var(--color-accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
  font-family: var(--font-ui);
}

.intro-stage-title {
  margin: 0;
  font-size: 1.2rem;
}

.intro-stage-copy {
  margin: 0.35rem 0 0.7rem;
  color: var(--color-text-secondary);
  font-family: var(--font-ui);
}

.intro-stage-progress-wrap {
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: rgba(212, 175, 55, 0.15);
  overflow: hidden;
}

.intro-stage-progress {
  display: block;
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-accent-secondary), var(--color-accent-primary));
  transition: width 300ms ease;
}

.intro-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
  margin-bottom: 1rem;
}

.intro-metric-card {
  border: 1px solid var(--color-border-subtle);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.01);
  padding: 0.85rem;
}

.intro-metric-value {
  margin: 0;
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--color-accent-primary);
  line-height: 1;
}

.intro-metric-label {
  margin: 0.35rem 0 0;
  color: var(--color-text-tertiary);
  font-family: var(--font-ui);
  font-size: 0.82rem;
}

.intro-quick-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
  margin-bottom: 1.2rem;
}

.intro-quick-card {
  border: 1px solid rgba(212, 175, 55, 0.16);
  border-radius: 8px;
  background: rgba(212, 175, 55, 0.03);
  padding: 0.9rem;
  text-decoration: none;
  transition: transform 220ms ease, border-color 220ms ease, background 220ms ease;
}

.intro-quick-card h3 {
  margin: 0 0 0.25rem;
  font-size: 1rem;
  color: var(--color-text-primary);
}

.intro-quick-card p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.45;
  color: var(--color-text-secondary);
  font-family: var(--font-ui);
}

.intro-quick-card:hover,
.intro-quick-card:focus-visible,
.intro-quick-card.is-focused {
  border-color: var(--color-accent-primary);
  transform: translateY(-2px);
  background: rgba(212, 175, 55, 0.08);
}

.intro-actions {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  flex-wrap: wrap;
}

.intro-btn {
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-family: var(--font-ui);
  font-size: 0.84rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.62rem 1rem;
  cursor: pointer;
}

.intro-btn-primary {
  background: var(--color-accent-primary);
  border-color: var(--color-accent-primary);
  color: #0b0b0b;
  font-weight: 600;
}

.intro-btn-primary:hover {
  background: var(--color-accent-secondary);
  border-color: var(--color-accent-secondary);
}

.intro-btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
}

.intro-btn-ghost:hover {
  color: var(--color-text-primary);
  border-color: var(--color-accent-primary);
}

.intro-optout {
  margin-left: auto;
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
  color: var(--color-text-tertiary);
  font-family: var(--font-ui);
  font-size: 0.82rem;
}

.intro-optout input {
  accent-color: var(--color-accent-primary);
}

.intro-replay {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 160;
  border: 1px solid rgba(212, 175, 55, 0.35);
  border-radius: 999px;
  background: rgba(18, 18, 18, 0.9);
  color: var(--color-accent-primary);
  font-family: var(--font-ui);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
  transition: transform 220ms ease, opacity 220ms ease, border-color 220ms ease;
}

.intro-replay:hover {
  transform: translateY(-2px);
  border-color: var(--color-accent-primary);
}

/* ── Intro header visual accent ─────────────────── */
.intro-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 0.6rem;
}

.intro-eyebrow-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.4), transparent);
}

.intro-eyebrow-glyph {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: rgba(212, 175, 55, 0.55);
  line-height: 1;
  letter-spacing: 0.12em;
}

@keyframes introFloatA {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(3%, 4%); }
}

@keyframes introFloatB {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-3%, -5%); }
}

@keyframes introFloatC {
  0%, 100% { transform: translateY(0); opacity: 0.22; }
  50% { transform: translateY(6%); opacity: 0.28; }
}

@media (max-width: 980px) {
  .intro-shell {
    width: min(960px, 95vw);
    padding: 1.2rem;
  }

  .intro-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .intro-quick-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .intro-title {
    font-size: 1.65rem;
  }

  .intro-metrics,
  .intro-quick-grid {
    grid-template-columns: 1fr;
  }

  .intro-optout {
    margin-left: 0;
    width: 100%;
  }

  .intro-actions {
    align-items: stretch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .intro-sequence,
  .intro-quick-card,
  .intro-btn,
  .intro-replay,
  .intro-stage-progress {
    transition: none !important;
  }

  .intro-orb {
    animation: none !important;
  }
}