/* ============================================
   Moonjourn - Base
   Reset, typography, primitives
   ============================================ */

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  /* Cosmic nebula — strong enough to shine through every transparent transition,
     so scenes never fall into dead black between them. */
  background:
    radial-gradient(ellipse 90% 60% at 15% 8%,  rgba(160, 110, 210, 0.34), transparent 55%),
    radial-gradient(ellipse 80% 60% at 88% 22%, rgba(233, 193, 118, 0.22), transparent 55%),
    radial-gradient(ellipse 80% 60% at 12% 48%, rgba(100, 130, 220, 0.28), transparent 55%),
    radial-gradient(ellipse 90% 65% at 82% 62%, rgba(210, 130, 190, 0.24), transparent 55%),
    radial-gradient(ellipse 80% 55% at 20% 82%, rgba(120, 90, 180, 0.28), transparent 55%),
    radial-gradient(ellipse 90% 60% at 70% 96%, rgba(233, 193, 118, 0.16), transparent 60%),
    linear-gradient(180deg, #0b0e18 0%, #141628 50%, #0b0e18 100%);
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.55;
  font-weight: 400;
  font-feature-settings: "ss01", "cv11";
  overflow-x: hidden;
}
/* Cosmic harmonising wash — a single fixed overlay over every scene and prose
   using mix-blend-mode so the various scene colours (warm wood, cool marble,
   red velvet, dark indigo) are all unified through the same violet/gold filter.
   Scene-to-scene colour steps become a gradient through one atmosphere,
   instead of hard transitions between incompatible tones. */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 50;
  pointer-events: none;
  background:
    radial-gradient(ellipse 90% 70% at 18% 18%,  rgba(160, 110, 210, 0.55), transparent 60%),
    radial-gradient(ellipse 80% 60% at 85% 25%,  rgba(233, 193, 118, 0.38), transparent 60%),
    radial-gradient(ellipse 80% 70% at 15% 55%,  rgba(100, 130, 220, 0.42), transparent 60%),
    radial-gradient(ellipse 85% 60% at 82% 68%,  rgba(210, 130, 190, 0.42), transparent 60%),
    radial-gradient(ellipse 80% 60% at 25% 88%,  rgba(120, 90, 180, 0.45), transparent 60%),
    radial-gradient(ellipse 90% 65% at 75% 96%,  rgba(233, 193, 118, 0.3), transparent 65%);
  mix-blend-mode: soft-light;
}

/* Subtle star field over the whole body */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    radial-gradient(1.5px 1.5px at 7% 14%, rgba(255, 238, 200, 0.7), transparent 100%),
    radial-gradient(1px 1px at 22% 62%, rgba(233, 193, 118, 0.5), transparent 100%),
    radial-gradient(1.5px 1.5px at 38% 8%, rgba(255, 238, 200, 0.55), transparent 100%),
    radial-gradient(1px 1px at 51% 42%, rgba(200, 180, 240, 0.45), transparent 100%),
    radial-gradient(2px 2px at 68% 18%, rgba(255, 238, 200, 0.8), transparent 100%),
    radial-gradient(1px 1px at 82% 58%, rgba(233, 193, 118, 0.4), transparent 100%),
    radial-gradient(1.5px 1.5px at 92% 32%, rgba(200, 180, 240, 0.45), transparent 100%),
    radial-gradient(1px 1px at 6% 78%, rgba(233, 193, 118, 0.4), transparent 100%),
    radial-gradient(1px 1px at 34% 88%, rgba(255, 238, 200, 0.5), transparent 100%),
    radial-gradient(1px 1px at 44% 52%, rgba(233, 193, 118, 0.35), transparent 100%),
    radial-gradient(1.5px 1.5px at 78% 92%, rgba(255, 238, 200, 0.65), transparent 100%),
    radial-gradient(1px 1px at 15% 38%, rgba(200, 180, 240, 0.4), transparent 100%),
    radial-gradient(1px 1px at 60% 76%, rgba(255, 238, 200, 0.5), transparent 100%);
  opacity: 0.5;
  pointer-events: none;
}

/* Reset list, button, link */
ul, ol { padding: 0; margin: 0; list-style: none; }
button {
  font: inherit; color: inherit;
  border: 0; background: transparent;
  cursor: pointer; padding: 0;
}
a { color: inherit; text-decoration: none; }
img, svg, video { display: block; max-width: 100%; height: auto; }

/* Selection */
::selection {
  background: var(--gold);
  color: var(--bg);
}

/* Scrollbar (subtle, dark) */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--surface-lowest); }
::-webkit-scrollbar-thumb {
  background: var(--surface-high);
  border-radius: 10px;
  border: 2px solid var(--surface-lowest);
}
::-webkit-scrollbar-thumb:hover { background: var(--gold-dark); }

/* Focus - elegant gold */
:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Headings - serif display */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.04;
  letter-spacing: -0.012em;
  margin: 0;
  color: var(--text);
}

h1 { font-size: var(--fs-h1); font-weight: 300; letter-spacing: -0.025em; }
h2 { font-size: var(--fs-h2); font-weight: 300; letter-spacing: -0.018em; }
h3 { font-size: var(--fs-h3); }
h4 { font-size: var(--fs-h4); }

p { margin: 0 0 var(--sp-4); }
p:last-child { margin-bottom: 0; }

/* Eyebrow */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  font-family: var(--font-body);
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
}
.eyebrow::before {
  content: "";
  width: 32px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-dark));
}

/* Lead text */
.lead {
  font-size: var(--fs-lead);
  line-height: 1.55;
  color: var(--text-muted);
  font-weight: 300;
  font-family: var(--font-display);
  font-style: italic;
}

/* Containers */
.container {
  width: 100%;
  max-width: var(--container-standard);
  margin: 0 auto;
  padding: 0 var(--container-edge);
}
.container.narrow { max-width: var(--container-narrow); }
.container.wide { max-width: var(--container-wide); }
.container.full { max-width: 100%; padding: 0; }

/* Section */
section {
  position: relative;
  padding: var(--sp-11) 0;
}
@media (max-width: 768px) {
  section { padding: var(--sp-10) 0; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-3);
  height: 56px;
  padding: 0 var(--sp-6);
  border-radius: var(--r-pill);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: transform var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              color var(--dur-fast) var(--ease-out);
  position: relative;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--gold);
  color: var(--bg);
  box-shadow: 0 14px 40px -16px var(--glow-gold);
}
.btn-primary:hover {
  background: var(--gold-light);
  box-shadow: 0 18px 50px -14px rgba(233, 193, 118, 0.5);
}

.btn-ghost {
  color: var(--text);
  border: 1px solid var(--hairline);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover {
  border-color: var(--gold);
  color: var(--gold);
  background: var(--glow-gold-soft);
}

.btn-icon { width: 18px; height: 18px; }

/* Hairline */
.hairline {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--hairline), transparent);
  border: 0;
  margin: 0;
}

/* Atmosphere primitives - data-atmosphere system */
[data-atmosphere] { position: relative; isolation: isolate; }
[data-atmosphere]::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

/* Warm glow - radial gold from off-screen */
[data-atmosphere="warm-glow"]::before {
  background:
    radial-gradient(circle at 75% 30%, var(--glow-gold-soft) 0%, transparent 50%),
    radial-gradient(circle at 15% 80%, var(--glow-lavender) 0%, transparent 55%);
}

/* Spotlight - centered focus */
[data-atmosphere="spotlight"]::before {
  background:
    radial-gradient(ellipse at 50% 40%, var(--glow-gold-soft) 0%, transparent 60%);
}

/* Void - subtle noise + vignette */
[data-atmosphere="void"]::before {
  background:
    radial-gradient(ellipse at center, transparent 40%, rgba(0, 0, 0, 0.4) 100%);
}

/* Grid - subtle gold lines */
[data-atmosphere="grid"]::before {
  background-image:
    linear-gradient(to right, var(--hairline) 1px, transparent 1px),
    linear-gradient(to bottom, var(--hairline) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.35;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}

/* Sweep - diagonal light */
[data-atmosphere="sweep"]::before {
  background: linear-gradient(135deg, transparent 30%, var(--glow-gold-soft) 50%, transparent 70%);
}

/* Section transitions */
.transition-bleed {
  position: absolute;
  left: 0; right: 0;
  height: 200px;
  pointer-events: none;
  z-index: 1;
}
.transition-bleed.top {
  top: 0;
  background: linear-gradient(to bottom, var(--bg), transparent);
}
.transition-bleed.bottom {
  bottom: 0;
  background: linear-gradient(to top, var(--bg), transparent);
}

.transition-line {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  width: 80%;
  max-width: 600px;
  margin: 0 auto;
  opacity: 0.4;
}

/* Reveal helpers (GSAP target) */
.reveal { opacity: 0; transform: translateY(40px); }
.reveal-soft { opacity: 0; }
.split-line { display: inline-block; overflow: hidden; vertical-align: top; }
.split-line span { display: inline-block; transform: translateY(110%); }

/* Utility */
.text-gold { color: var(--gold); }
.text-lavender { color: var(--lavender); }
.text-muted { color: var(--text-muted); }
.text-dim { color: var(--text-dim); }
.italic { font-style: italic; }

.flex { display: flex; }
.grid { display: grid; }
.gap-4 { gap: var(--sp-4); }
.gap-6 { gap: var(--sp-6); }
.gap-8 { gap: var(--sp-8); }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal, .reveal-soft { opacity: 1; transform: none; }
  .split-line span { transform: none; }
}