/* LUMÈN — Flagship concept demo · micro.netweb
   Iridescent-on-black, editorial luxe. Pairs Fraunces (display) + Inter (UI). */

:root {
  --bg: #000004;
  --ink: #f4f3f8;
  --muted: rgba(244, 243, 248, .60);
  --faint: rgba(244, 243, 248, .34);
  --hair: rgba(244, 243, 248, .12);
  --iris-a: #b07cff;
  --iris-b: #5b8bff;
  --iris-c: #56e0d6;
  --warm: #ff8a4c;
  --grad: linear-gradient(100deg, var(--iris-a), var(--iris-b) 45%, var(--iris-c));
  --maxw: 1200px;
  --serif: 'Cormorant Garamond', Georgia, serif;
  --sans: 'Jost', system-ui, sans-serif;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  letter-spacing: .005em;
}

a { color: inherit; text-decoration: none; }
em { font-style: italic; }
::selection { background: rgba(176, 124, 255, .35); color: #fff; }

/* ---- Hero background = live Spline scene (gradient is the load/reduced-motion fallback) ---- */
.hero-bg {
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 100vw; height: 100%; z-index: 0; overflow: hidden; pointer-events: none;
  background:
    radial-gradient(120% 90% at 50% 78%, rgba(91,139,255,.20), transparent 60%),
    radial-gradient(80% 60% at 72% 42%, rgba(176,124,255,.16), transparent 55%);
}
.hero-bg spline-viewer { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.grain {
  position: fixed; inset: 0; z-index: 1; pointer-events: none; opacity: .045;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---- Loader ---- */
.loader {
  position: fixed; inset: 0; z-index: 100; background: #000004;
  display: grid; place-items: center;
  transition: opacity .7s var(--ease), visibility .7s;
}
.loader.done { opacity: 0; visibility: hidden; }
.loader-mark {
  font-family: var(--serif); font-size: clamp(2rem, 7vw, 4rem); font-weight: 300;
  letter-spacing: .22em; padding-left: .22em;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: pulse 1.6s var(--ease) infinite;
}
@keyframes pulse { 0%, 100% { opacity: .35; } 50% { opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .loader-mark { animation: none; } }

/* ---- Demo banner ---- */
.demobar {
  position: relative; z-index: 40;
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  justify-content: center;
  padding: 9px 18px; font-size: .76rem; color: var(--muted);
  background: rgba(255, 255, 255, .03);
  border-bottom: 1px solid var(--hair);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  text-align: center;
}
.demobar b { color: var(--ink); font-weight: 600; }
.demobar-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--grad); box-shadow: 0 0 12px var(--iris-a); flex: none; }
.demobar-link { color: var(--ink); font-weight: 600; white-space: nowrap; }
.demobar-link:hover { color: var(--iris-c); }

/* ---- Nav ---- */
.nav {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; justify-content: space-between;
  gap: 18px; padding: 18px clamp(18px, 4vw, 48px);
  transition: background .4s var(--ease), backdrop-filter .4s;
}
.nav.scrolled {
  background: rgba(0, 0, 6, .55);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--hair);
}
.brand {
  font-family: var(--serif); font-size: 1.3rem; font-weight: 400;
  letter-spacing: .2em; padding-left: .2em;
}
.brand span { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nav-links { display: flex; gap: 30px; }
.nav-links a {
  font-size: .82rem; letter-spacing: .04em; color: var(--muted);
  position: relative; padding: 4px 0; transition: color .25s;
}
.nav-links a::after {
  content: ''; position: absolute; left: 0; bottom: 0; width: 0; height: 1px;
  background: var(--grad); transition: width .3s var(--ease);
}
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-right { display: flex; align-items: center; gap: 18px; }
.lang { display: flex; align-items: center; gap: 7px; font-size: .78rem; color: var(--faint); }
.lang-opt { background: none; border: 0; color: var(--faint); cursor: pointer; font: inherit; padding: 2px; transition: color .2s; }
.lang-opt.active, .lang-opt:hover { color: var(--ink); }
.nav-cta {
  font-size: .8rem; font-weight: 500; padding: 9px 18px; border-radius: 999px;
  border: 1px solid var(--hair); transition: border-color .3s, background .3s, color .3s;
}
.nav-cta:hover { border-color: transparent; background: var(--grad); color: #07030f; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-size: .9rem; font-weight: 500; letter-spacing: .02em;
  padding: 14px 30px; border-radius: 999px; cursor: pointer;
  transition: transform .3s var(--ease), box-shadow .3s, background .3s, color .3s, border-color .3s;
  will-change: transform;
}
.btn-fill { background: var(--grad); color: #07030f; font-weight: 600; }
.btn-fill:hover { box-shadow: 0 12px 40px rgba(91, 139, 255, .35); }
.btn-line { border: 1px solid var(--hair); color: var(--ink); }
.btn-line:hover { border-color: transparent; background: rgba(255, 255, 255, .06); }
/* Ghost = lightweight secondary: no pill, an iridescent underline slides in on hover.
   Keeps the filled primary visually dominant. */
.btn-ghost { color: var(--ink); padding: 14px 8px; }
.btn-ghost::after {
  content: ''; position: absolute; left: 8px; right: 8px; bottom: 8px; height: 1px;
  background: var(--grad); transform: scaleX(0); transform-origin: center;
  transition: transform .4s var(--ease);
}
.btn-ghost:hover::after { transform: scaleX(1); }
.btn { position: relative; }

/* ---- Layout primitives ---- */
main { position: relative; z-index: 10; }
.sec {
  position: relative;
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(90px, 14vh, 170px) clamp(20px, 5vw, 48px);
}
.sec-head { max-width: 760px; margin-bottom: clamp(40px, 6vw, 72px); }
.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: .74rem; letter-spacing: .26em; text-transform: uppercase;
  color: var(--faint); margin-bottom: 26px;
}
.eyebrow i { font-style: normal; color: transparent; background: var(--grad); -webkit-background-clip: text; background-clip: text; font-weight: 600; }
.eyebrow.center { display: block; text-align: center; }
.sec-title {
  font-family: var(--serif); font-weight: 300;
  font-size: clamp(2rem, 5.5vw, 4rem); line-height: 1.05; letter-spacing: -.01em;
}
.sec-title em { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; font-style: italic; }
.sec-sub { margin-top: 22px; font-size: 1.05rem; color: var(--muted); max-width: 620px; }

/* ---- Hero ---- */
.hero {
  position: relative; z-index: 10;
  min-height: 92vh; display: flex; flex-direction: column; justify-content: center;
  max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(20px, 5vw, 48px);
  text-align: center; align-items: center;
}
.hero > p, .hero > h1, .hero > .hero-cta { position: relative; z-index: 1; }
.hero-over { font-size: .8rem; letter-spacing: .3em; text-transform: uppercase; color: var(--muted); margin-bottom: 30px; }
.hero-title {
  font-family: var(--serif); font-weight: 300;
  font-size: clamp(4.5rem, 19vw, 15rem); line-height: .9; letter-spacing: .04em;
  padding-left: .04em;
}
.hero-title .accent { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { margin-top: 30px; max-width: 540px; font-size: clamp(1rem, 2.2vw, 1.2rem); color: var(--muted); font-weight: 300; }
.hero-cta { margin-top: 54px; display: flex; gap: 22px; flex-wrap: wrap; justify-content: center; align-items: center; }

/* ---- Essence ---- */
.essence-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: clamp(36px, 6vw, 80px); align-items: start; }
.essence-copy p { font-size: 1.1rem; color: var(--muted); margin-bottom: 22px; max-width: 52ch; }
.essence-copy p:first-child { color: var(--ink); font-size: 1.25rem; font-weight: 300; line-height: 1.5; }
.stats { list-style: none; display: flex; flex-direction: column; gap: 26px; border-left: 1px solid var(--hair); padding-left: 32px; }
.stats strong { display: block; font-family: var(--serif); font-weight: 300; font-size: clamp(2.4rem, 5vw, 3.4rem); line-height: 1; }
.stats span { font-size: .82rem; letter-spacing: .04em; color: var(--faint); }

/* ---- Composition pyramid ---- */
.pyramid { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.pyramid li {
  position: relative; padding: 36px 28px 32px;
  border: 1px solid var(--hair); border-radius: 18px;
  background: rgba(255, 255, 255, .02);
  transition: border-color .4s var(--ease), transform .4s var(--ease), background .4s;
  overflow: hidden;
}
.pyramid li::before {
  content: ''; position: absolute; inset: 0; opacity: 0; transition: opacity .4s;
  background: radial-gradient(120% 100% at 50% 0%, rgba(176,124,255,.12), transparent 70%);
}
.pyramid li:hover { border-color: rgba(176,124,255,.4); transform: translateY(-6px); background: rgba(255,255,255,.035); }
.pyramid li:hover::before { opacity: 1; }
.pyr-rank { font-family: var(--serif); font-style: italic; font-size: 1rem; color: var(--faint); letter-spacing: .1em; }
.pyramid h3 { font-family: var(--serif); font-weight: 400; font-size: 1.5rem; margin: 14px 0 12px; }
.pyramid p { color: var(--muted); font-size: .98rem; }

/* ---- Sillage (full-bleed text-over-ribbon) ---- */
.sillage { position: relative; text-align: center; max-width: 900px; padding-top: clamp(60px, 10vh, 120px); padding-bottom: clamp(60px, 10vh, 120px); }
.sillage::before { content: ''; position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); width: 130%; height: 150%; z-index: -1; pointer-events: none; background: radial-gradient(58% 50% at 50% 50%, rgba(91,139,255,.16), rgba(176,124,255,.08) 42%, transparent 70%); }
.sillage-title { font-family: var(--serif); font-weight: 300; font-size: clamp(2.2rem, 7vw, 5.5rem); line-height: 1.02; margin: 22px 0 26px; }
.sillage-title em { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sillage-text { font-size: 1.1rem; color: var(--muted); max-width: 560px; margin: 0 auto; font-weight: 300; }

/* ---- Edition ---- */
.edition-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: clamp(36px, 6vw, 80px); align-items: center; }
.edition-copy p { color: var(--muted); font-size: 1.1rem; margin: 22px 0 34px; max-width: 46ch; }
.spec { border: 1px solid var(--hair); border-radius: 20px; padding: 12px 30px; background: rgba(255,255,255,.02); }
.spec > div { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; padding: 22px 0; border-bottom: 1px solid var(--hair); }
.spec dt { color: var(--faint); font-size: .8rem; letter-spacing: .14em; text-transform: uppercase; }
.spec dd { font-family: var(--serif); font-weight: 300; font-size: 1.6rem; }
.spec-price { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.spec-note { padding: 18px 0 6px; font-size: .82rem; color: var(--faint); }

/* ---- Order ---- */
.order-form { max-width: 540px; }
.field { margin-bottom: 22px; }
.field label { display: block; font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; color: var(--faint); margin-bottom: 10px; }
.field input {
  width: 100%; background: rgba(255,255,255,.03); border: 1px solid var(--hair);
  border-radius: 12px; padding: 15px 16px; color: var(--ink); font: inherit;
  transition: border-color .25s, background .25s;
}
.field input::placeholder { color: var(--faint); }
.field input:focus { outline: none; border-color: rgba(176,124,255,.55); background: rgba(255,255,255,.05); }
.order-form .btn { width: 100%; margin-top: 6px; }
.order-note { margin-top: 16px; font-size: .82rem; color: var(--faint); }
.order-form.sent .order-note { color: var(--iris-c); }
.order-alt { margin-top: 30px; display: flex; gap: 26px; flex-wrap: wrap; }
.alt-link { font-size: .92rem; color: var(--muted); border-bottom: 1px solid var(--hair); padding-bottom: 3px; transition: color .25s, border-color .25s; }
.alt-link:hover { color: var(--ink); border-color: var(--iris-b); }

/* ---- Footer ---- */
.foot { position: relative; z-index: 10; border-top: 1px solid var(--hair); margin-top: 40px; padding: clamp(50px, 8vw, 90px) clamp(20px, 5vw, 48px) 40px; max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.foot-top { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; padding-bottom: 50px; }
.foot-brand .brand { font-size: 1.5rem; }
.foot-brand p { color: var(--muted); margin-top: 16px; max-width: 30ch; font-weight: 300; }
.foot-col h4 { font-size: .76rem; letter-spacing: .16em; text-transform: uppercase; color: var(--faint); margin-bottom: 18px; font-weight: 500; }
.foot-col a { display: block; color: var(--muted); font-size: .94rem; padding: 5px 0; transition: color .2s; }
.foot-col a:hover { color: var(--ink); }
.foot-disclaimer { font-size: .8rem; color: var(--faint); border-top: 1px solid var(--hair); padding-top: 26px; max-width: 70ch; }
.foot-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-top: 22px; font-size: .8rem; color: var(--faint); }
.foot-bottom a { color: var(--muted); } .foot-bottom a:hover { color: var(--iris-c); }

/* ---- Reveal animation ---- */
[data-reveal] { opacity: 0; transform: translateY(26px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
[data-reveal].in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* ---- Responsive ---- */
@media (max-width: 880px) {
  .nav-links { display: none; }
  .essence-grid, .edition-grid { grid-template-columns: 1fr; }
  .stats { flex-direction: row; flex-wrap: wrap; gap: 28px; border-left: 0; border-top: 1px solid var(--hair); padding-left: 0; padding-top: 28px; }
  .stats li { flex: 1 1 90px; }
  .pyramid { grid-template-columns: 1fr; }
  .foot-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 540px) {
  .nav-cta { display: none; }
  .foot-top { grid-template-columns: 1fr; gap: 30px; }
  .order-alt { gap: 18px; }
}