:root {
  /* DESIGN NOTE: IntersectionObserver` (threshold: 0.15) is implemented in script.js. */
  --obsidian: #0A0A0A;
  --candlesmoke: #1A1611;
  --altar-gold: #C8A84E;
  --gold-deep: #B8943E;
  --gold-bright: #D4B85E;
  --tallow: #D4C19C;
  --ember: #8B6914;
  --vesper: #F5E6C8;
  --cloister: #6B6255;
  --parchment: #F5F0E8;
  --brown: #2A2118;
  --heading: "Cormorant Garamond", "Georgia", "Times New Roman", serif;
  --body: "EB Garamond", "Georgia", serif;
  --label: "Cormorant SC", "Georgia", serif;
  --scroll: 0;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; background: var(--obsidian); }

body {
  margin: 0;
  background: var(--obsidian);
  color: var(--tallow);
  font-family: var(--body);
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  line-height: 2;
  letter-spacing: 0.01em;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at 50% 28%, rgba(245, 230, 200, 0.08), transparent 18rem), radial-gradient(circle at 10% 55%, rgba(200, 168, 78, 0.055), transparent 22rem);
  mix-blend-mode: screen;
  z-index: 1;
}

.svg-defs { position: absolute; width: 0; height: 0; overflow: hidden; }

.margin-candle {
  position: fixed;
  left: clamp(1rem, 3vw, 2.5rem);
  top: 20vh;
  width: 2px;
  height: 60vh;
  z-index: 5;
  pointer-events: none;
  background: linear-gradient(to bottom, transparent, var(--ember), var(--vesper), var(--altar-gold), transparent);
  box-shadow: 0 0 18px rgba(200, 168, 78, 0.45);
  opacity: 0.48;
  animation: candleFlicker 6s ease-in-out infinite;
  transform: translateY(calc(var(--scroll) * 60px));
}

.hero {
  min-height: 100vh;
  display: grid;
  place-items: center;
  position: relative;
  background: var(--obsidian);
  padding: clamp(4rem, 10vh, 8rem) clamp(1.5rem, 5vw, 4rem);
  isolation: isolate;
}

.hero::after {
  content: "";
  position: absolute;
  left: 30%;
  right: 30%;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--altar-gold), transparent);
  opacity: 0.85;
}

.moon {
  position: absolute;
  top: clamp(2rem, 7vw, 5rem);
  right: clamp(2rem, 8vw, 7rem);
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  box-shadow: -0.55rem 0 0 0 rgba(200, 168, 78, 0.62);
  opacity: 0.55;
}

.hero-inner { text-align: center; max-width: 48rem; position: relative; z-index: 2; }

.flame { width: 24px; height: 48px; filter: blur(0.5px) drop-shadow(0 0 12px rgba(245, 230, 200, 0.38)); }
.hero-flame { margin-bottom: 2rem; opacity: 0.82; animation: flamePulse 4.8s ease-in-out infinite; }

.label {
  margin: 0 0 1.25rem;
  font-family: var(--label);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cloister);
}

h1, h2 { font-family: var(--heading); color: var(--altar-gold); font-weight: 300; line-height: 1.1; }

h1 {
  margin: 0;
  font-size: clamp(3rem, 10vw, 7rem);
  letter-spacing: 0.08em;
  text-shadow: 0 0 22px rgba(245, 230, 200, 0.28), 0 0 54px rgba(200, 168, 78, 0.18);
}

.gold-leaf {
  background-image: repeating-linear-gradient(45deg, #C8A84E 0 2px, #B8943E 2px 4px, #D4B85E 4px 6px, #C8A84E 6px 8px);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.domain {
  margin: 1.6rem 0 0;
  font-family: var(--label);
  font-size: clamp(0.85rem, 1.6vw, 1rem);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--tallow);
}

.hero-rule {
  width: 40%;
  height: 1px;
  margin: 2.2rem auto;
  background: linear-gradient(90deg, transparent, var(--altar-gold), transparent);
}

.etymology {
  max-width: 31rem;
  margin: 0 auto;
  color: var(--tallow);
  font-style: italic;
  opacity: 0;
  transform: translateY(10px);
}

.etymology.is-visible { opacity: 1; transform: translateY(0); transition: opacity 900ms ease, transform 900ms ease; }

.nave {
  position: relative;
  padding: clamp(6rem, 15vh, 12rem) clamp(1.5rem, 5vw, 4rem);
  background: var(--obsidian);
  clip-path: polygon(0 6%, 100% 0, 100% 100%, 0 100%);
  min-height: 82vh;
  display: grid;
  place-items: center;
}

.nave.warm { background: var(--candlesmoke); }

.content-block {
  max-width: 38rem;
  width: 100%;
  position: relative;
  z-index: 2;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 800ms ease-out, transform 800ms ease-out;
}

.reveal-section.is-visible .content-block, .colophon.is-visible { opacity: 1; transform: translateY(0); }

h2 {
  margin: 0 0 2.2rem;
  font-size: clamp(1.5rem, 3.5vw, 2.5rem);
  font-weight: 400;
  letter-spacing: 0.05em;
  text-shadow: 0 0 18px rgba(200, 168, 78, 0.2);
}

p { margin: 0 0 2em; }
p:last-child { margin-bottom: 0; }
em { color: var(--vesper); }

.skeleton-block .text-material { opacity: 0; transition: opacity 400ms ease; }
.skeleton-block.skeleton-complete .text-material { opacity: 1; }

.skeleton-lines {
  position: absolute;
  left: 0;
  right: 0;
  top: 7rem;
  display: grid;
  gap: 1.05rem;
  opacity: 0;
  pointer-events: none;
}

.reveal-section.is-visible .skeleton-lines { opacity: 1; }
.skeleton-block.skeleton-complete .skeleton-lines { opacity: 0; transition: opacity 400ms ease; }

.skeleton-lines span {
  height: 0.72rem;
  border-radius: 2px;
  opacity: 0.15;
  background: linear-gradient(90deg, rgba(139, 105, 20, 0.25), rgba(245, 230, 200, 0.65), rgba(200, 168, 78, 0.28));
  background-size: 220% 100%;
  animation: shimmer 2s ease forwards;
}

.skeleton-lines span:nth-child(1) { width: 92%; }
.skeleton-lines span:nth-child(2) { width: 78%; }
.skeleton-lines span:nth-child(3) { width: 88%; }
.skeleton-lines span:nth-child(4) { width: 56%; }

.section-flame { margin-top: clamp(3rem, 7vh, 5rem); opacity: 0.62; text-align: center; }
.centered { text-align: center; }
.closing-flame { width: 38px; height: 76px; margin: 0 auto 2rem; animation: flamePulse 5.5s ease-in-out infinite; }

.pressed {
  position: absolute;
  opacity: 0.3;
  color: var(--ember);
  z-index: 1;
}

.pressed svg { width: 80px; height: 120px; fill: none; stroke: currentColor; stroke-width: 1; stroke-linecap: round; stroke-linejoin: round; }
.pressed-one { right: 12vw; top: 18%; transform: rotate(7deg); }
.pressed-two { left: 12vw; bottom: 16%; transform: rotate(-10deg); }
.pressed-three { right: 15vw; bottom: 13%; transform: rotate(4deg); }

.colophon {
  position: relative;
  padding: clamp(6rem, 15vh, 10rem) clamp(1.5rem, 5vw, 4rem);
  min-height: 55vh;
  text-align: center;
  background-color: var(--candlesmoke);
  background-image: radial-gradient(circle at center, rgba(200, 168, 78, 0.06) 0 3px, transparent 4px), radial-gradient(circle at center, rgba(245, 230, 200, 0.035), transparent 1.8rem);
  background-size: 120px 120px, 120px 120px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 800ms ease-out, transform 800ms ease-out;
}

.footer-domain { margin: 0 0 1rem; font-family: var(--heading); font-size: clamp(2rem, 6vw, 4rem); color: var(--altar-gold); letter-spacing: 0.12em; }
.attribution { max-width: 34rem; margin: 0 auto 2rem; color: var(--cloister); }
.gold-dots { display: flex; justify-content: center; gap: 0.8rem; }
.gold-dots span, .stars span { display: block; width: 5px; height: 5px; border-radius: 50%; background: var(--altar-gold); box-shadow: 0 0 10px rgba(245, 230, 200, 0.4); }

.stars span { position: absolute; width: 4px; height: 4px; opacity: 0.72; }
.stars span:nth-child(1) { top: 22%; left: 28%; }
.stars span:nth-child(2) { top: 35%; right: 22%; }
.stars span:nth-child(3) { bottom: 28%; left: 62%; }

@keyframes candleFlicker { 0%, 100% { opacity: 0.35; } 45% { opacity: 0.72; } 62% { opacity: 0.48; } 78% { opacity: 0.66; } }
@keyframes flamePulse { 0%, 100% { transform: scale(0.96); opacity: 0.7; } 50% { transform: scale(1.04); opacity: 1; } }
@keyframes shimmer { 0% { background-position: 160% 0; } 100% { background-position: -60% 0; } }

@media (prefers-color-scheme: light) {
  :root {
    --obsidian: #F5F0E8;
    --candlesmoke: #F5E6C8;
    --tallow: #2A2118;
    --altar-gold: #8B6914;
    --cloister: #6B6255;
  }
  body::before { mix-blend-mode: multiply; opacity: 0.5; }
  .gold-leaf { -webkit-text-fill-color: transparent; }
}

@media (max-width: 720px) {
  .margin-candle { left: 0.65rem; height: 46vh; top: 27vh; }
  .nave { clip-path: polygon(0 3%, 100% 0, 100% 100%, 0 100%); }
  .pressed { display: none; }
  .hero::after { left: 18%; right: 18%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 1ms !important; animation-iteration-count: 1 !important; transition-duration: 1ms !important; }
  .content-block, .colophon, .etymology { transform: none; }
}