:root {
  --black: #050403;
  --charcoal: #11100e;
  --umber: #2a1a10;
  --wine: #4a1118;
  --gold: #c8a45d;
  --amber: #efb45d;
  --champagne: #f1e1b8;
  --cream: #f8efdf;
  --smoke: #a9a095;
  --line: rgba(241, 225, 184, .16);
  --line-bright: rgba(200, 164, 93, .52);
  --glass: rgba(255, 246, 225, .065);
  --shadow: 0 34px 100px rgba(0, 0, 0, .54);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--black); }
body {
  margin: 0;
  color: var(--cream);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 80% 0%, rgba(200,164,93,.22), transparent 34rem),
    radial-gradient(circle at 14% 12%, rgba(74,17,24,.32), transparent 34rem),
    linear-gradient(180deg, #050403 0%, #100a07 48%, #050403 100%);
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 80;
  pointer-events: none;
  opacity: .11;
  background-image:
    linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 5px 5px;
  mix-blend-mode: overlay;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.shell { width: min(1180px, calc(100% - 38px)); margin: 0 auto; }
.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 90;
  background: linear-gradient(180deg, rgba(5,4,3,.92), rgba(5,4,3,.38), transparent);
  backdrop-filter: blur(16px);
}
.nav-inner {
  height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff4df;
  font-family: Georgia, "Times New Roman", serif;
  letter-spacing: .24em;
  text-transform: uppercase;
  font-size: 13px;
}
.brand img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid rgba(200,164,93,.42);
  box-shadow: 0 0 30px rgba(200,164,93,.28);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: rgba(248,239,223,.70);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.nav-links a:hover { color: var(--champagne); }
.hero {
  min-height: 76svh;
  display: grid;
  align-items: center;
  position: relative;
  padding: 126px 0 70px;
  isolation: isolate;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(5,4,3,.92), rgba(5,4,3,.62) 46%, rgba(5,4,3,.88)),
    var(--hero-image) right 8% center / min(520px, 60vw) auto no-repeat;
  opacity: .95;
}
.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 34%;
  z-index: -1;
  background: linear-gradient(180deg, transparent, var(--black));
}
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
  color: rgba(248,239,223,.68);
  font-size: 12px;
  letter-spacing: .24em;
  text-transform: uppercase;
  font-weight: 800;
}
.kicker::before {
  content: "";
  width: 44px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold));
}
h1, h2, h3 {
  margin: 0;
  color: #fff6e8;
  font-family: Georgia, "Times New Roman", serif;
  letter-spacing: -.055em;
}
h1 {
  max-width: 880px;
  font-size: clamp(56px, 9vw, 118px);
  line-height: .84;
  text-transform: uppercase;
  text-shadow: 0 28px 90px rgba(0,0,0,.64);
}
h1 span {
  display: block;
  color: transparent;
  -webkit-text-stroke: 1px rgba(241,225,184,.74);
  text-stroke: 1px rgba(241,225,184,.74);
}
.lead {
  max-width: 720px;
  margin: 26px 0 0;
  color: rgba(248,239,223,.82);
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.58;
}
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 13px;
  margin-top: 30px;
}
.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 20px;
  border: 1px solid rgba(241,225,184,.24);
  border-radius: 999px;
  background: rgba(255,246,225,.055);
  color: #fff8ec;
  box-shadow: 0 18px 60px rgba(0,0,0,.32);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .17em;
  text-transform: uppercase;
  transition: transform .24s ease, border-color .24s ease, background .24s ease;
}
.button:hover {
  transform: translateY(-3px);
  border-color: rgba(200,164,93,.82);
  background: rgba(200,164,93,.12);
}
.button.primary {
  border-color: rgba(200,164,93,.78);
  background: linear-gradient(135deg, rgba(255,239,202,.18), rgba(200,164,93,.18), rgba(74,17,24,.18));
}
section { padding: 96px 0; position: relative; }
.section-head { max-width: 880px; margin-bottom: 42px; }
.section-title { font-size: clamp(42px, 6.2vw, 86px); line-height: .9; }
.section-lead {
  max-width: 760px;
  margin: 22px 0 0;
  color: rgba(248,239,223,.76);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.62;
}
.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.card {
  min-height: 360px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: rgba(255,246,225,.045);
  box-shadow: var(--shadow);
  isolation: isolate;
  transition: transform .25s ease, border-color .25s ease;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background: var(--image) center / cover no-repeat;
  opacity: .42;
  filter: saturate(.9) contrast(1.07);
  transition: transform .45s ease, opacity .45s ease;
}
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, transparent 10%, rgba(5,4,3,.74) 64%, rgba(5,4,3,.96));
}
.card:hover {
  transform: translateY(-5px);
  border-color: var(--line-bright);
}
.card:hover::before { transform: scale(1.05); opacity: .58; }
.card small {
  color: var(--gold);
  letter-spacing: .22em;
  text-transform: uppercase;
  font-size: 11px;
  font-weight: 900;
}
.card h3 {
  margin-top: 16px;
  font-size: 40px;
  line-height: .94;
}
.card p {
  margin: 12px 0 0;
  color: rgba(248,239,223,.78);
  line-height: 1.5;
}
.card span {
  display: inline-flex;
  width: max-content;
  margin-top: 20px;
  color: var(--champagne);
  border-bottom: 1px solid rgba(200,164,93,.72);
  padding-bottom: 6px;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.feature {
  display: grid;
  grid-template-columns: minmax(280px, .75fr) minmax(0, 1fr);
  gap: 44px;
  align-items: center;
}
.feature img {
  width: min(420px, 100%);
  border-radius: 28px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.principles {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.principle {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255,246,225,.045);
}
.principle strong {
  display: block;
  color: var(--champagne);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 25px;
  letter-spacing: -.04em;
}
.principle span {
  display: block;
  margin-top: 8px;
  color: rgba(248,239,223,.70);
  line-height: 1.48;
}
.footer {
  padding: 50px 0 42px;
  color: rgba(248,239,223,.58);
  font-size: 13px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.page-music {
  background:
    radial-gradient(circle at 70% 22%, rgba(200,164,93,.26), transparent 24rem),
    radial-gradient(circle at 18% 12%, rgba(74,17,24,.35), transparent 28rem),
    linear-gradient(180deg, #050403 0%, #110806 52%, #050403 100%);
}
.orbit-stage {
  display: grid;
  grid-template-columns: minmax(280px, .85fr) minmax(0, 1fr);
  gap: 46px;
  align-items: center;
}
.vinyl {
  position: relative;
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(241,225,184,.88) 0 8%, rgba(200,164,93,.7) 9% 12%, transparent 13%),
    repeating-radial-gradient(circle, rgba(241,225,184,.20) 0 1px, transparent 2px 12px),
    radial-gradient(circle, #19130f 0 58%, #050403 59% 100%);
  border: 1px solid rgba(200,164,93,.48);
  box-shadow: inset 0 0 44px rgba(0,0,0,.82), 0 34px 120px rgba(200,164,93,.18);
  animation: spin 18s linear infinite;
}
.vinyl::after {
  content: "AURION";
  position: absolute;
  inset: 42%;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #22160b;
  background: linear-gradient(135deg, #f1e1b8, #c8a45d);
  font: 900 10px/1 Inter, sans-serif;
  letter-spacing: .18em;
}
.orbit-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.track-pill {
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: 14px;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255,246,225,.05);
}
.track-pill img {
  width: 74px;
  height: 74px;
  object-fit: cover;
  border-radius: 50%;
  border: 1px solid rgba(200,164,93,.42);
}
.track-pill strong {
  display: block;
  color: var(--champagne);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 23px;
}
.track-pill span {
  color: rgba(248,239,223,.66);
  font-size: 13px;
  line-height: 1.35;
}
@keyframes spin { to { transform: rotate(360deg); } }

.page-library {
  background:
    linear-gradient(90deg, rgba(200,164,93,.06) 1px, transparent 1px),
    radial-gradient(circle at 50% 0%, rgba(200,164,93,.18), transparent 34rem),
    linear-gradient(180deg, #050403 0%, #0c0a0b 50%, #050403 100%);
  background-size: 74px 100%, auto, auto;
}
.library-duo {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.book-chamber {
  min-height: 520px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: flex-start;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 34px;
  background: rgba(255,246,225,.045);
  box-shadow: var(--shadow);
  isolation: isolate;
}
.book-chamber::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background: var(--image) center / cover no-repeat;
  opacity: .46;
  filter: saturate(.9) contrast(1.08);
}
.book-chamber::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(5,4,3,.08), rgba(5,4,3,.88) 66%, rgba(5,4,3,.98));
}
.book-chamber h3 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(42px, 4.4vw, 66px);
  line-height: .94;
}
.book-chamber p {
  max-width: 560px;
  margin: 16px 0 22px;
  color: rgba(248,239,223,.78);
  line-height: 1.56;
}
.spine-rail {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 18px;
}
.spine {
  padding: 18px 16px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255,246,225,.08), rgba(255,246,225,.025));
}
.spine strong { display: block; color: var(--champagne); font-family: Georgia, "Times New Roman", serif; font-size: 24px; }
.spine span { display: block; margin-top: 8px; color: rgba(248,239,223,.66); font-size: 13px; line-height: 1.4; }

.page-world {
  background:
    linear-gradient(90deg, rgba(200,164,93,.09) 1px, transparent 1px),
    linear-gradient(rgba(200,164,93,.055) 1px, transparent 1px),
    radial-gradient(circle at 70% 18%, rgba(200,164,93,.20), transparent 30rem),
    #050403;
  background-size: 44px 44px, 44px 44px, auto, auto;
}
.world-panel, .core-panel, .atelier-panel, .lab-panel, .temple-panel {
  padding: clamp(24px, 4vw, 46px);
  border: 1px solid var(--line);
  border-radius: 34px;
  background: rgba(255,246,225,.048);
  box-shadow: var(--shadow);
}
.world-paths, .lab-grid, .atelier-codes, .core-map {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
  align-items: stretch;
}
.path-card, .lab-card, .code-card, .core-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(5,4,3,.42);
}
.path-card strong, .lab-card strong, .code-card strong, .core-card strong {
  display: block;
  color: var(--champagne);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 28px;
}
.path-card span, .lab-card span, .code-card span, .core-card span {
  display: block;
  margin-top: 10px;
  color: rgba(248,239,223,.68);
  line-height: 1.45;
}

.page-atelier {
  background:
    linear-gradient(120deg, rgba(255,255,255,.05) 0 1px, transparent 1px 22%),
    radial-gradient(circle at 76% 18%, rgba(200,164,93,.20), transparent 32rem),
    linear-gradient(180deg, #050403, #130d0a 48%, #050403);
}
.atelier-panel {
  display: grid;
  grid-template-columns: minmax(280px, .85fr) minmax(0, 1fr);
  gap: 38px;
  align-items: center;
}
.atelier-panel img {
  border-radius: 30px;
  border: 1px solid var(--line-bright);
  box-shadow: var(--shadow);
}

.page-temple {
  background:
    radial-gradient(circle at 50% 0%, rgba(241,225,184,.16), transparent 32rem),
    linear-gradient(180deg, #080604 0%, #15100a 48%, #050403 100%);
}
.temple-panel {
  background:
    linear-gradient(180deg, rgba(241,225,184,.08), rgba(200,164,93,.035)),
    rgba(5,4,3,.42);
}
.principle {
  position: relative;
}
.principle::before {
  content: attr(data-number);
  position: absolute;
  top: 18px;
  right: 20px;
  color: rgba(200,164,93,.42);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 34px;
}

.page-lab {
  background:
    radial-gradient(circle at 72% 12%, rgba(81,183,210,.12), transparent 28rem),
    radial-gradient(circle at 20% 18%, rgba(200,164,93,.20), transparent 26rem),
    linear-gradient(180deg, #050403, #090d10 48%, #050403);
}
.instrument {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 18px;
  align-items: start;
  min-height: 310px;
}
.instrument > div {
  min-width: 0;
  min-height: 100%;
  display: flex;
  flex-direction: column;
}
.instrument img {
  width: 92px;
  height: 92px;
  object-fit: cover;
  border-radius: 24px;
  box-shadow: 0 18px 44px rgba(0,0,0,.34);
}
.app-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  margin-top: auto;
  padding-top: 20px;
}
.app-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  min-width: 176px;
  padding: 10px 16px;
  border: 1px solid rgba(241,225,184,.22);
  border-radius: 999px;
  color: rgba(255,248,236,.88);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .14em;
  text-transform: uppercase;
  background: rgba(255,246,225,.045);
}
.app-actions a.ios {
  border-color: rgba(200,164,93,.70);
  background: rgba(200,164,93,.13);
  color: #fff6e8;
}

.page-core {
  background:
    radial-gradient(circle at 50% 24%, rgba(200,164,93,.24), transparent 30rem),
    radial-gradient(circle at 50% 78%, rgba(74,17,24,.24), transparent 34rem),
    linear-gradient(180deg, #050403 0%, #100a07 52%, #050403 100%);
}
.page-echo {
  background:
    radial-gradient(circle at 68% 18%, rgba(200,164,93,.20), transparent 30rem),
    radial-gradient(circle at 18% 28%, rgba(241,225,184,.10), transparent 22rem),
    linear-gradient(180deg, #050403 0%, #0b0908 52%, #050403 100%);
}
.echo-strip {
  display: grid;
  grid-template-columns: .86fr 1.14fr;
  gap: 38px;
  align-items: center;
  padding: clamp(24px, 4vw, 46px);
  border: 1px solid var(--line);
  border-radius: 34px;
  background:
    linear-gradient(90deg, rgba(200,164,93,.10), rgba(255,246,225,.035)),
    rgba(5,4,3,.44);
  box-shadow: var(--shadow);
}
.echo-strip img {
  border-radius: 30px;
  border: 1px solid var(--line-bright);
  box-shadow: var(--shadow);
}
.episode-line {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.episode-line strong {
  display: block;
  color: var(--champagne);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 28px;
}
.episode-line span {
  color: rgba(248,239,223,.66);
  line-height: 1.45;
}
.episode-line em {
  color: var(--gold);
  font-style: normal;
  font-weight: 900;
  letter-spacing: .16em;
  text-transform: uppercase;
  font-size: 11px;
}
.core-panel {
  text-align: center;
}
.core-panel .section-title {
  max-width: 920px;
  margin-left: auto;
  margin-right: auto;
  font-size: clamp(42px, 5vw, 74px);
}
.core-panel .section-lead {
  max-width: 920px;
  margin-left: auto;
  margin-right: auto;
}
.core-panel img {
  width: min(360px, 86%);
  margin: 0 auto 28px;
  border-radius: 28px;
  border: 1px solid var(--line-bright);
  box-shadow: var(--shadow);
}
@media (max-width: 940px) {
  .nav-inner { height: 66px; }
  .nav-links { display: none; }
  .brand { letter-spacing: .18em; font-size: 12px; }
  .hero {
    min-height: 80svh;
    padding: 104px 0 52px;
  }
  .hero::before {
    background:
      linear-gradient(180deg, rgba(5,4,3,.76), rgba(5,4,3,.96)),
      var(--hero-image) center top 12% / 70vw auto no-repeat;
  }
  h1 { font-size: clamp(48px, 15vw, 76px); }
  .grid, .feature, .principles, .orbit-stage, .orbit-grid, .library-duo, .spine-rail, .world-paths, .lab-grid, .atelier-codes, .core-map, .atelier-panel, .echo-strip, .episode-line { grid-template-columns: 1fr; }
  .card { min-height: 360px; }
  .book-chamber { min-height: 430px; }
  .book-chamber h3 { font-size: clamp(40px, 12vw, 64px); }
  .instrument {
    grid-template-columns: 72px 1fr;
    min-height: auto;
  }
  .instrument img {
    width: 72px;
    height: 72px;
    border-radius: 20px;
  }
  .app-actions a {
    width: 100%;
  }
  .button { width: 100%; }
  .footer-inner { flex-direction: column; }
}