/* ═══════════════════════════════════════════════════════════════
   LUMORA AMOR — Global Styles
   Shared base, typography, components, and utilities.
   ═══════════════════════════════════════════════════════════════ */

/* ─── Reset ────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: var(--leading-normal);
  color: var(--text-secondary);
  background-color: var(--bg-body);
  overflow-x: hidden;
  min-height: 100vh;
}

/* ─── Typography Base ──────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--text-primary);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  font-weight: 600;
  text-wrap: balance;
}

p { max-width: 68ch; }
p + p { margin-top: var(--space-6); }

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out-soft);
}

img, video, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

ul, ol { list-style: none; }

::selection {
  background: rgba(233, 193, 118, 0.25);
  color: var(--text-primary);
}

/* ─── Focus States ─────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  background: var(--color-amber);
  color: var(--color-void);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-label);
  font-weight: 600;
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  z-index: calc(var(--z-splash) + 1);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  transition: top var(--duration-fast) var(--ease-out-soft);
}

.skip-link:focus {
  top: 0;
}

/* ─── Layout ───────────────────────────────────────────────── */
.shell {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.shell--narrow { max-width: var(--container-narrow); }
.shell--wide   { max-width: var(--container-wide); }

.section-pad {
  padding-block: var(--section-gap);
}

.section-pad-lg {
  padding-block: var(--section-gap-lg);
}

/* ─── Kicker / Label ───────────────────────────────────────── */
.kicker {
  display: inline-block;
  font-family: var(--font-label);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-6);
}

.kicker--amber { color: var(--color-amber); }
.kicker--faint { color: var(--text-faint); }

/* ─── Horizontal Rule ──────────────────────────────────────── */
.rule {
  display: block;
  width: 48px;
  height: 1px;
  background: var(--color-amber);
  opacity: 0.5;
  border: none;
}

.rule--center { margin-inline: auto; }

/* ─── Draw Link (Animated Underline CTA) ───────────────────── */
.draw-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-label);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-amber);
  padding-bottom: var(--space-1);
  position: relative;
  transition: color var(--duration-fast) var(--ease-out-soft);
}

.draw-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-amber);
  transition: width var(--duration-slow) var(--ease-out-expo);
}

.draw-link:hover::after,
.draw-link:focus-visible::after {
  width: 100%;
}

.draw-link svg {
  width: 14px;
  height: 14px;
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.draw-link:hover svg {
  transform: translateX(4px);
}

/* Arrow icon */
.draw-link .arrow {
  display: inline-block;
  width: 16px;
  height: 16px;
}

/* ─── Button ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  font-family: var(--font-label);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-full);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  background: transparent;
  transition:
    background var(--duration-normal) var(--ease-out-soft),
    border-color var(--duration-normal) var(--ease-out-soft),
    color var(--duration-normal) var(--ease-out-soft),
    transform var(--duration-fast) var(--ease-out-soft);
  cursor: pointer;
  white-space: nowrap;
}

.btn:hover {
  background: rgba(245, 245, 245, 0.06);
  border-color: var(--border-medium);
}

.btn:active { transform: scale(0.97); }

.btn--filled {
  background: var(--color-amber);
  color: var(--color-void);
  border-color: var(--color-amber);
}

.btn--filled:hover {
  background: var(--color-amber-glow);
  border-color: var(--color-amber-glow);
}

.btn--warm {
  border-color: var(--color-charcoal);
  color: var(--color-charcoal);
}

.btn--warm:hover {
  background: var(--color-charcoal);
  color: var(--text-primary);
}

/* ─── Film Grain Overlay ───────────────────────────────────── */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: var(--z-above);
  opacity: 0.03;
  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='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  background-repeat: repeat;
  mix-blend-mode: overlay;
}

/* ─── Progress Bar ─────────────────────────────────────────── */
.progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: calc(var(--z-header) + 1);
  pointer-events: none;
}

.progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--color-violet-soft), var(--color-amber));
  transform-origin: left;
  transform: scaleX(0);
  will-change: transform;
}

/* ─── Scroll Reveal System ─────────────────────────────────── */
.rv {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity var(--duration-slow) var(--ease-out-expo),
    transform var(--duration-slow) var(--ease-out-expo);
  transition-delay: var(--d, 0s);
}

.rv.in {
  opacity: 1;
  transform: translateY(0);
}

/* Hero-specific reveal — comes from further away */
.rv.in-hero {
  transform: translateY(40px);
}

.rv.in-hero.in {
  transform: translateY(0);
}

/* ─── Image Treatments ─────────────────────────────────────── */
.img-film {
  border-radius: var(--radius-md);
  filter: saturate(0.88) contrast(1.05);
}

.img-lost {
  background: linear-gradient(135deg, var(--color-ash), var(--color-ink));
  min-height: 200px;
  border-radius: var(--radius-md);
}

.img-placeholder {
  background: linear-gradient(160deg, var(--color-ash) 0%, var(--color-ink) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-faint);
  font-family: var(--font-label);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

/* ─── Section Transitions ──────────────────────────────────── */
.section-dark {
  background-color: var(--bg-deep);
  color: var(--text-secondary);
}

.section-charcoal {
  background-color: var(--bg-body);
  color: var(--text-secondary);
}

.section-warm {
  background-color: var(--bg-warm);
  color: var(--text-on-warm);
}

.section-warm .kicker { color: var(--color-amber-deep); }
.section-warm .text-muted { color: var(--text-on-warm-muted); }
.section-warm .draw-link { color: var(--color-charcoal); }
.section-warm .draw-link::after { background: var(--color-charcoal); }
.section-warm .rule { background: var(--color-charcoal); opacity: 0.2; }

.section-editorial {
  background-color: var(--color-charcoal-warm);
  color: var(--text-secondary);
}

/* ─── Scroll Cue ───────────────────────────────────────────── */
.scroll-cue {
  position: absolute;
  bottom: var(--space-10);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.scroll-cue span {
  display: block;
  width: 1px;
  height: 32px;
  background: linear-gradient(to bottom, var(--color-amber), transparent);
  animation: scroll-pulse 2.5s var(--ease-in-out-soft) infinite;
}

@keyframes scroll-pulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50%      { opacity: 1;   transform: scaleY(1); }
}

/* ─── Spark (decorative four-point star) ────────────────────── */
.spark {
  width: 28px;
  height: 28px;
  color: var(--color-amber);
  opacity: 0.7;
}

/* ─── 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;
  }

  .rv {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .scroll-cue { display: none; }
  .grain { display: none; }
}

/* ─── Print ────────────────────────────────────────────────── */
@media print {
  .grain, .progress, .scroll-cue, .site-head, .veil,
  #aurora, .splash { display: none !important; }

  body {
    background: #fff;
    color: #000;
    font-size: 12pt;
  }
}