/* ──────────────────────────────────────────────────────────────
   Yu'anang · site
   Cinematic dark · purple→pink→blue · scroll-driven
   ────────────────────────────────────────────────────────────── */

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

:root{
  /* surfaces */
  --bg:#06050d;
  --bg-2:#0a0815;
  --bg-3:#0e0b1f;
  --bg-deep:#020107;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.04);
  --line-strong:rgba(255,255,255,.14);

  /* ink */
  --ink:#f0eef8;
  --ink-2:#d4d0e8;
  --dim:#8884a8;
  --soft:#5b557a;

  /* accents */
  --blue:#5b9cff;
  --violet:#a380ff;
  --pink:#ff7ad1;
  --grad:linear-gradient(135deg,#5b9cff 0%,#a380ff 50%,#ff7ad1 100%);
  --grad-soft:linear-gradient(135deg,rgba(91,156,255,.18) 0%,rgba(163,128,255,.18) 50%,rgba(255,122,209,.18) 100%);

  /* type */
  --sans:'Geist',ui-sans-serif,system-ui,-apple-system,sans-serif;
  --serif:'Instrument Serif',ui-serif,Georgia,serif;
  --mono:'Geist Mono',ui-monospace,Menlo,monospace;

  /* fluid space */
  --pad-x:clamp(20px,5vw,80px);
  --pad-y:clamp(80px,12vw,160px);

  /* scroll-driven custom property (updated by JS) */
  --sy:0px;
  --mx:50vw;
  --my:50vh;
  --scroll:0;        /* 0..1 of page progress */
}

html{
  background:var(--bg);
  scroll-behavior:smooth;
  color-scheme:dark;
}
body{
  font-family:var(--sans);
  font-size:16px;
  line-height:1.55;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
  font-feature-settings:"ss01","ss03","cv11";
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
::selection{background:var(--violet);color:#fff}

/* ──────────────────────────────────────────────────────────────
   Background layers — fixed, behind everything
   ────────────────────────────────────────────────────────────── */
.bg{
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:var(--bg);
}
.bg-mesh{
  position:absolute;inset:-10%;
  background:
    radial-gradient(45vw 35vw at 18% 10%, rgba(91,156,255,.32), transparent 60%),
    radial-gradient(55vw 45vw at 82% 6%,  rgba(163,128,255,.30), transparent 65%),
    radial-gradient(50vw 40vw at 50% 92%, rgba(255,122,209,.22), transparent 60%),
    radial-gradient(60vw 50vw at 92% 52%, rgba(91,156,255,.18), transparent 65%),
    radial-gradient(40vw 30vw at 8% 75%, rgba(120,90,255,.18), transparent 60%);
  filter:blur(40px) saturate(140%);
  animation:meshDrift 28s ease-in-out infinite alternate;
  transform:translateY(calc(var(--sy) * -0.05));
  will-change:transform;
}
@keyframes meshDrift{
  0%  {transform:translate(0,calc(var(--sy)*-0.05)) scale(1)}
  50% {transform:translate(2%,calc(var(--sy)*-0.05 + 1%)) scale(1.04)}
  100%{transform:translate(-2%,calc(var(--sy)*-0.05)) scale(1)}
}
.bg-noise{
  position:absolute;inset:0;
  opacity:.18;
  mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.6 0 0 0 0 0.5 0 0 0 0 0.9 0 0 0 0.7 0'/></filter><rect width='180' height='180' filter='url(%23n)'/></svg>");
}
.bg-cursor{
  position:absolute;inset:0;
  background:
    radial-gradient(360px circle at var(--mx) var(--my),
      rgba(163,128,255,.10) 0%,
      rgba(91,156,255,.05) 30%,
      transparent 60%);
  transition:background .12s linear;
}
.bg-grid{
  position:absolute;inset:0;
  background-image:
    linear-gradient(to right, var(--line-2) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-2) 1px, transparent 1px);
  background-size:80px 80px;
  background-position:center;
  mask-image:radial-gradient(ellipse 90% 80% at 50% 50%, #000 30%, transparent 95%);
  opacity:.5;
}

/* ──────────────────────────────────────────────────────────────
   Progress bar
   ────────────────────────────────────────────────────────────── */
.progress{
  position:fixed;top:0;left:0;right:0;height:2px;z-index:200;pointer-events:none;
  background:rgba(255,255,255,.04);
}
.progress span{
  display:block;height:100%;
  width:calc(var(--scroll) * 100%);
  background:var(--grad);
  transform-origin:left;
  transition:width .08s linear;
  box-shadow:0 0 14px rgba(163,128,255,.5);
}

/* ──────────────────────────────────────────────────────────────
   Nav
   ────────────────────────────────────────────────────────────── */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:18px clamp(20px,4vw,48px);
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;gap:24px;
  background:linear-gradient(to bottom, rgba(6,5,13,.7), rgba(6,5,13,0));
  transition:background .3s,backdrop-filter .3s,border-color .3s;
}
.nav.is-scrolled{
  background:rgba(6,5,13,.78);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--ink);
}
.brand-mark{
  width:30px;height:30px;
  filter:drop-shadow(0 0 12px rgba(163,128,255,.35));
}
.brand-name{
  font-family:var(--sans);
  font-weight:600;font-size:15px;
  letter-spacing:-.005em;
}
.nav-links{
  display:flex;justify-content:center;gap:6px;
}
.nav-links a{
  font-family:var(--sans);font-weight:500;font-size:13.5px;
  color:var(--ink-2);
  padding:8px 14px;border-radius:999px;
  transition:color .15s,background .15s;
}
.nav-links a:hover{color:var(--ink);background:rgba(255,255,255,.05)}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  color:var(--ink);
  font-family:var(--sans);font-weight:500;font-size:13.5px;
  transition:background .2s,transform .2s,border-color .2s,box-shadow .2s;
}
.nav-cta:hover{
  background:linear-gradient(135deg,rgba(91,156,255,.25),rgba(255,122,209,.25));
  border-color:rgba(163,128,255,.4);
  box-shadow:0 6px 20px rgba(163,128,255,.2);
  transform:translateY(-1px);
}
@media (max-width:760px){
  .nav-links{display:none}
}

/* ──────────────────────────────────────────────────────────────
   Buttons (shared)
   ────────────────────────────────────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 22px;border-radius:999px;
  font-family:var(--sans);font-weight:500;font-size:14.5px;
  letter-spacing:-.005em;
  cursor:pointer;text-decoration:none;
  transition:transform .25s cubic-bezier(.2,.7,.3,1),
             box-shadow .25s cubic-bezier(.2,.7,.3,1),
             background .25s,
             border-color .25s;
  white-space:nowrap;
  position:relative;
  isolation:isolate;
}
.btn-primary{
  color:#0a0413;
  background:linear-gradient(135deg,#cfd9ff 0%,#e6daff 50%,#ffd5ee 100%);
  box-shadow:
    0 1px 0 rgba(255,255,255,.5) inset,
    0 8px 28px rgba(163,128,255,.32),
    0 0 0 1px rgba(255,255,255,.1);
}
.btn-primary::before{
  content:'';position:absolute;inset:0;border-radius:inherit;z-index:-1;
  background:var(--grad);
  opacity:0;transition:opacity .25s;
}
.btn-primary:hover{
  transform:translateY(-2px) scale(1.01);
  box-shadow:
    0 1px 0 rgba(255,255,255,.5) inset,
    0 14px 38px rgba(163,128,255,.45),
    0 0 0 1px rgba(255,255,255,.15);
}
.btn-primary:hover::before{opacity:1}
.btn-primary:hover span,.btn-primary:hover svg{color:#fff;position:relative;z-index:1}
.btn-ghost{
  color:var(--ink);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
}
.btn-ghost:hover{
  background:rgba(255,255,255,.08);
  border-color:var(--line-strong);
  transform:translateY(-1px);
}
.btn.big{padding:18px 30px;font-size:16px}

/* ──────────────────────────────────────────────────────────────
   Section labels (inline, max-width à 1280 pour aligner avec le contenu)
   ────────────────────────────────────────────────────────────── */
.section-label{
  position:relative;
  max-width:1280px;
  margin:0 auto 56px;
  display:flex;align-items:center;gap:14px;
  font-family:var(--mono);font-size:11.5px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--dim);
  z-index:3;
}
.section-label::before{
  content:'';width:32px;height:1px;background:var(--violet);
}
.section-label .num{
  color:var(--violet);font-weight:500;font-size:11.5px;
}
.section-label .lbl{color:var(--ink-2)}

/* ──────────────────────────────────────────────────────────────
   Reveal-on-scroll (progressive enhancement)
   Très subtil pour ne pas être un point de panne.
   ────────────────────────────────────────────────────────────── */
.js .reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .7s cubic-bezier(.2,.7,.2,1),
             transform .7s cubic-bezier(.2,.7,.2,1);
}
.js .reveal.in{opacity:1;transform:translateY(0)}

/* gradient text utility */
.grad{
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
  display:inline-block;
}

/* ──────────────────────────────────────────────────────────────
   HERO
   ────────────────────────────────────────────────────────────── */
.hero{
  position:relative;
  min-height:100vh;
  display:grid;place-items:center;
  padding:140px var(--pad-x) 120px;
  overflow:hidden;
  text-align:center;
}

/* corner frame labels */
.hero-frame{
  position:absolute;inset:24px clamp(20px,4vw,48px);
  pointer-events:none;
  font-family:var(--mono);
  font-size:10.5px;letter-spacing:.22em;
  color:var(--soft);text-transform:uppercase;
  z-index:4;
}
.hero-frame span{position:absolute}
.hero-frame .frame-tl{top:80px;left:0}
.hero-frame .frame-tr{top:80px;right:0}
.hero-frame .frame-bl{bottom:24px;left:0}
.hero-frame .frame-br{bottom:24px;right:0;color:var(--violet)}
@media (max-width:760px){
  .hero-frame{display:none}
}

/* big atmospheric aura behind title */
.hero-aura{
  position:absolute;inset:0;z-index:0;pointer-events:none;
  overflow:hidden;
}
.aura-blob{
  position:absolute;border-radius:50%;
  filter:blur(80px);
  opacity:.55;
  mix-blend-mode:screen;
  will-change:transform;
}
.aura-blob.a1{
  width:min(820px,90vw);height:min(820px,90vw);
  left:8%;top:-12%;
  background:radial-gradient(circle at 40% 40%, #6a8cff, transparent 65%);
  animation:auraDrift1 22s ease-in-out infinite alternate;
}
.aura-blob.a2{
  width:min(720px,80vw);height:min(720px,80vw);
  right:-6%;top:18%;
  background:radial-gradient(circle at 50% 50%, #c08aff, transparent 65%);
  animation:auraDrift2 28s ease-in-out infinite alternate;
}
.aura-blob.a3{
  width:min(620px,75vw);height:min(620px,75vw);
  left:42%;bottom:-22%;
  background:radial-gradient(circle at 40% 50%, #ff7ad1, transparent 65%);
  animation:auraDrift3 24s ease-in-out infinite alternate;
}
@keyframes auraDrift1{0%{transform:translate(0,0) scale(1)}100%{transform:translate(40px,30px) scale(1.08)}}
@keyframes auraDrift2{0%{transform:translate(0,0) scale(1.05)}100%{transform:translate(-40px,50px) scale(.95)}}
@keyframes auraDrift3{0%{transform:translate(0,0) scale(1)}100%{transform:translate(60px,-40px) scale(1.1)}}
.aura-scan{
  position:absolute;inset:0;
  background-image:repeating-linear-gradient(0deg, rgba(255,255,255,.018) 0 1px, transparent 1px 3px);
  mix-blend-mode:overlay;
  opacity:.6;
  pointer-events:none;
}

.hero-inner{
  position:relative;z-index:2;
  display:flex;flex-direction:column;align-items:center;gap:28px;
  max-width:1100px;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  padding:7px 16px 7px 13px;border-radius:999px;
  background:rgba(10,8,21,.65);
  border:1px solid var(--line);
  font-family:var(--mono);font-size:11px;letter-spacing:.18em;
  color:var(--ink-2);text-transform:uppercase;
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}
.hero-eyebrow .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--violet);
  box-shadow:0 0 10px var(--violet);
  animation:dotPulse 2.4s ease-in-out infinite;
}
@keyframes dotPulse{
  0%,100%{transform:scale(1);box-shadow:0 0 8px var(--violet)}
  50%{transform:scale(1.18);box-shadow:0 0 20px var(--violet)}
}

/* kinetic mega-title */
.hero-title{
  font-family:var(--sans);
  font-weight:300;
  font-size:clamp(64px,12.5vw,200px);
  line-height:1.02;
  letter-spacing:-.055em;
  color:var(--ink);
  margin:8px 0 4px;
  max-width:100%;
  padding-bottom:.04em;
  /* gradient fill */
  background:linear-gradient(180deg,#fff 0%,#e9e3fa 50%,#a796d0 100%);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  /* fallback in case background-clip fails: still legible */
  color:#fff;
}
@supports (-webkit-background-clip: text) or (background-clip: text) {
  .hero-title{color:transparent}
}

.hero-tag{
  font-family:var(--sans);
  font-weight:400;
  font-size:clamp(18px,2.1vw,22px);
  line-height:1.5;
  color:var(--ink-2);
  max-width:580px;
  letter-spacing:-.005em;
}
.hero-tag em{
  font-family:var(--serif);
  font-style:italic;font-weight:400;
  font-size:1.18em;
  color:var(--ink);
  letter-spacing:-.005em;
}
.hero-cta{
  display:flex;gap:14px;flex-wrap:wrap;justify-content:center;
  margin-top:6px;
}

.hero-scrollcue{
  position:absolute;
  bottom:60px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:10px;
  font-family:var(--mono);font-size:10px;letter-spacing:.25em;
  color:var(--soft);text-transform:uppercase;
  z-index:3;
}
.hero-scrollcue .line{
  width:1px;height:48px;
  background:linear-gradient(to bottom,rgba(163,128,255,.5),transparent);
  position:relative;overflow:hidden;
}
.hero-scrollcue .line::after{
  content:'';position:absolute;top:0;left:0;right:0;height:14px;
  background:linear-gradient(to bottom,#fff,transparent);
  animation:scrollcue 2.4s ease-in-out infinite;
}
@keyframes scrollcue{
  0%{transform:translateY(-100%);opacity:0}
  20%{opacity:1}
  100%{transform:translateY(48px);opacity:0}
}

/* ──────────────────────────────────────────────────────────────
   MARQUEE — refined, thin
   ────────────────────────────────────────────────────────────── */
.marquee{
  position:relative;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:14px 0;
  overflow:hidden;
  background:rgba(6,5,13,.45);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  white-space:nowrap;
  mask-image:linear-gradient(to right, transparent 0%, #000 6%, #000 94%, transparent 100%);
  -webkit-mask-image:linear-gradient(to right, transparent 0%, #000 6%, #000 94%, transparent 100%);
}
.marquee-track{
  display:inline-flex;align-items:center;gap:36px;
  animation:marqueeRoll 50s linear infinite;
  will-change:transform;
  padding-left:36px;
  font-family:var(--mono);
  font-size:12.5px;
  font-weight:400;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--ink-2);
}
.marquee-track .sep{
  color:var(--soft);
  font-size:.95em;
  letter-spacing:0;
}
@keyframes marqueeRoll{
  from{transform:translateX(0)}
  to{transform:translateX(-50%)}
}

/* shared spin used by SC rings */
@keyframes spin{to{transform:translate(-50%,-50%) rotate(360deg)}}

/* ──────────────────────────────────────────────────────────────
   MANIFESTO
   ────────────────────────────────────────────────────────────── */
.manifesto{
  position:relative;
  padding:var(--pad-y) var(--pad-x);
  overflow:hidden;
  isolation:isolate;
}

/* Ambient blobs (same family as hero aura, dialled down) */
.m-aura{position:absolute;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.m-blob{
  position:absolute;border-radius:50%;
  filter:blur(80px);opacity:.42;
  mix-blend-mode:screen;
  will-change:transform;
}
.m-blob.b1{
  width:min(720px,82vw);height:min(720px,82vw);
  left:-12%;top:8%;
  background:radial-gradient(circle, #5b9cff, transparent 65%);
  animation:mBlob1 26s ease-in-out infinite alternate;
}
.m-blob.b2{
  width:min(600px,72vw);height:min(600px,72vw);
  right:-10%;top:30%;
  background:radial-gradient(circle, #c08aff, transparent 65%);
  animation:mBlob2 32s ease-in-out infinite alternate;
}
.m-blob.b3{
  width:min(540px,64vw);height:min(540px,64vw);
  left:38%;bottom:-22%;
  background:radial-gradient(circle, #ff7ad1, transparent 65%);
  animation:mBlob3 28s ease-in-out infinite alternate;
}
@keyframes mBlob1{0%{transform:translate(0,0) scale(1)}100%{transform:translate(40px,30px) scale(1.06)}}
@keyframes mBlob2{0%{transform:translate(0,0) scale(1.04)}100%{transform:translate(-40px,40px) scale(.96)}}
@keyframes mBlob3{0%{transform:translate(0,0) scale(1)}100%{transform:translate(60px,-30px) scale(1.08)}}

/* Massive transparent watermark glyph centered behind everything */
.m-watermark{
  position:absolute;
  left:50%;top:50%;transform:translate(-50%,-52%);
  z-index:1;
  font-family:var(--serif);
  font-style:italic;font-weight:400;
  font-size:clamp(320px,46vw,720px);
  line-height:.78;letter-spacing:-.05em;
  color:transparent;
  -webkit-text-stroke:1px rgba(163,128,255,.10);
  pointer-events:none;user-select:none;
  white-space:nowrap;
}
.m-watermark i{
  font-style:italic;
  -webkit-text-stroke:1px rgba(255,122,209,.18);
  color:transparent;
}

/* 2-col layout */
.manifesto-inner{
  position:relative;z-index:2;
  max-width:1280px;margin:0 auto;
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:80px;
  align-items:start;
}
.m-left{
  display:flex;flex-direction:column;gap:48px;
  align-items:flex-start;
}

.m-quote{
  font-family:var(--sans);
  font-weight:300;
  font-size:clamp(48px,7.2vw,110px);
  line-height:.98;
  letter-spacing:-.035em;
  color:var(--ink);
}
.m-quote em{
  font-family:var(--serif);
  font-style:italic;font-weight:400;
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  font-size:1.05em;letter-spacing:-.01em;
}

/* Rotating seal under the title */
.m-seal{
  width:clamp(120px,11vw,160px);
  height:clamp(120px,11vw,160px);
  display:block;
  filter:drop-shadow(0 4px 20px rgba(163,128,255,.25));
}
.m-seal-rotate{
  transform-origin:100px 100px;
  animation:sealRotate 26s linear infinite;
}
@keyframes sealRotate{to{transform:rotate(360deg)}}

.m-body{
  display:flex;flex-direction:column;gap:18px;
  max-width:480px;
  padding-top:8px;
}
.m-body p{
  font-family:var(--sans);
  font-size:17.5px;line-height:1.65;
  color:var(--ink-2);
}

/* Pull-quote: big serif italic with floating glyph */
.m-pull{
  position:relative;
  font-family:var(--serif);font-style:italic;font-weight:400;
  font-size:clamp(22px,2.4vw,28px);
  line-height:1.4;
  color:var(--ink);
  padding:6px 0 6px 32px;
  margin-top:18px;
  border-left:2px solid transparent;
  border-image:linear-gradient(180deg,#5b9cff,#a380ff,#ff7ad1) 1;
}
.m-pull-mark{
  position:absolute;
  left:-2px;top:-46px;
  font-family:var(--serif);font-style:normal;font-weight:400;
  font-size:120px;line-height:1;
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  pointer-events:none;user-select:none;
}

/* Editorial dossier bar at the bottom */
.m-foot{
  position:relative;z-index:2;
  max-width:1280px;
  margin:120px auto 0;
  padding-top:24px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  gap:14px;flex-wrap:wrap;
  font-family:var(--mono);font-size:11px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--dim);
}
.m-foot-c{color:var(--violet);font-size:14px;letter-spacing:0}

@media (max-width:780px){
  .manifesto-inner{grid-template-columns:1fr;gap:36px}
  .m-watermark{font-size:clamp(160px,46vw,260px)}
  .m-seal{align-self:flex-start;margin-top:8px;width:120px;height:120px}
  .m-pull{font-size:20px;padding-left:24px}
  .m-pull-mark{font-size:90px;top:-36px}
  .m-foot{margin-top:60px;gap:10px;font-size:9.5px;letter-spacing:.16em}
  .m-foot-c{display:none}
}

/* ──────────────────────────────────────────────────────────────
   CATALOG (sticky scroll-driven)
   ────────────────────────────────────────────────────────────── */
.catalog{
  position:relative;
  padding-top:var(--pad-y);
}
.cat-intro{
  max-width:1280px;margin:0 auto;
  padding:0 var(--pad-x) 80px;
}
.cat-intro h2{
  font-family:var(--sans);font-weight:300;
  font-size:clamp(46px,6.5vw,96px);
  line-height:.98;letter-spacing:-.035em;
  color:var(--ink);
  margin-bottom:24px;max-width:900px;
}
.cat-intro p{
  font-family:var(--sans);font-size:17.5px;line-height:1.6;
  color:var(--dim);max-width:520px;
}

.cat-rail{
  position:relative;
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:80px;
  max-width:1480px;
  margin:0 auto;
  padding:0 var(--pad-x);
  align-items:start;
}
.cat-visual{
  position:sticky;top:120px;
  aspect-ratio:4/5;
  max-height:min(640px,72vh);
  border-radius:24px;
  overflow:hidden;
  background:var(--bg-2);
  border:1px solid var(--line);
  box-shadow:0 30px 80px rgba(0,0,0,.6), 0 0 0 1px rgba(163,128,255,.08) inset;
}
.cat-art{
  position:absolute;inset:0;
  display:block;
  opacity:0;
  transform:scale(1.02);
  transition:opacity .8s cubic-bezier(.2,.7,.3,1),
             transform 1.4s cubic-bezier(.2,.7,.3,1);
  overflow:hidden;
  /* Photo background. Drop your file in media/catalog/ — either replace the
     .svg placeholder or change the URL here to your real .webp/.jpg.
     Recommended format: 4:5, 1440×1800px, < 250 kB. */
  background-size:cover;
  background-position:center center;
  background-repeat:no-repeat;
}
.cat-art[data-idx="0"]{background-image:url('media/catalog/01-fps.webp')}
.cat-art[data-idx="1"]{background-image:url('media/catalog/02-survie.webp')}
.cat-art[data-idx="2"]{background-image:url('media/catalog/03-sf.webp')}
.cat-art[data-idx="3"]{background-image:url('media/catalog/04-coop.webp')}
.cat-art[data-idx="4"]{background-image:url('media/catalog/05-gestion.webp')}
.cat-art.is-active{
  opacity:1;
  transform:scale(1);
}

/* large background number */
.art-num{
  position:absolute;
  top:clamp(20px,3vw,40px);
  right:clamp(20px,3vw,40px);
  z-index:3;
  font-family:var(--sans);
  font-weight:200;
  font-size:clamp(180px,28vw,360px);
  line-height:.78;
  letter-spacing:-.08em;
  color:transparent;
  -webkit-text-stroke:1px rgba(255,255,255,.10);
  text-stroke:1px rgba(255,255,255,.10);
  pointer-events:none;
  user-select:none;
  font-variant-numeric:tabular-nums;
}

/* centered icon (genre-specific SVG) */
.art-icon{
  position:absolute;
  left:50%;top:50%;
  width:clamp(180px,32%,300px);
  aspect-ratio:1;
  transform:translate(-50%,-50%);
  z-index:4;
  color:rgba(255,255,255,.85);
  display:flex;align-items:center;justify-content:center;
  filter:drop-shadow(0 4px 20px rgba(163,128,255,.35));
}
.art-icon svg{width:100%;height:100%;display:block}
.art-icon::before{
  /* radial halo behind the icon for separation from background */
  content:'';position:absolute;inset:-20%;
  background:radial-gradient(circle, rgba(6,5,13,.45) 0%, transparent 65%);
  z-index:-1;
  filter:blur(8px);
}

/* gravitational game names around the icon */
.art-orbit{
  position:absolute;
  left:50%;top:50%;
  width:0;height:0;
  z-index:5;
  list-style:none;
  pointer-events:none;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:rgba(255,255,255,.55);
}
.art-orbit li{
  position:absolute;
  left:0;top:0;
  white-space:nowrap;
  /* polar coordinates: rotate to angle, push out by radius, then
     counter-rotate the label so text stays horizontal. */
  transform:
    translate(-50%,-50%)
    rotate(var(--a))
    translateY(calc(-1 * var(--r)))
    rotate(calc(-1 * var(--a)));
  padding:5px 10px;border-radius:999px;
  background:rgba(6,5,13,.55);
  border:1px solid rgba(255,255,255,.06);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}

.art-tag{
  position:absolute;
  left:24px;bottom:24px;z-index:5;
  font-family:var(--mono);
  font-size:11px;letter-spacing:.22em;
  text-transform:uppercase;
  color:#fff;
  padding:8px 14px;border-radius:999px;
  background:rgba(6,5,13,.55);
  border:1px solid rgba(255,255,255,.08);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}
.cat-art .art-tone{
  position:absolute;inset:0;
  /* Dark vignette overlay so the photo behind reads under the UI overlay. */
  background:
    radial-gradient(ellipse 130% 100% at 50% 100%, rgba(6,5,13,.92) 0%, rgba(6,5,13,.55) 45%, rgba(6,5,13,.55) 100%);
  z-index:1;
}
.art-tone::before{
  content:'';position:absolute;inset:0;
  background-image:
    repeating-linear-gradient(45deg, rgba(255,255,255,.022) 0 1px, transparent 1px 12px);
}
.art-tone::after{
  content:'';position:absolute;inset:0;
  background-size:300% 300%;
  animation:toneFlow 16s ease-in-out infinite;
  mix-blend-mode:screen;
  opacity:.45;
}
.art-tone-1::after{background:radial-gradient(60% 80% at 20% 80%, rgba(91,156,255,.55), transparent 60%),radial-gradient(50% 70% at 80% 20%, rgba(163,128,255,.35), transparent 60%)}
.art-tone-2::after{background:radial-gradient(60% 80% at 70% 70%, rgba(122,255,180,.28), transparent 60%),radial-gradient(50% 70% at 25% 20%, rgba(91,156,255,.32), transparent 60%)}
.art-tone-3::after{background:radial-gradient(60% 80% at 50% 30%, rgba(163,128,255,.6), transparent 60%),radial-gradient(50% 70% at 85% 80%, rgba(91,156,255,.45), transparent 60%),radial-gradient(40% 50% at 15% 75%, rgba(255,122,209,.3), transparent 60%)}
.art-tone-4::after{background:radial-gradient(60% 80% at 30% 80%, rgba(255,122,209,.45), transparent 60%),radial-gradient(50% 70% at 80% 20%, rgba(255,180,120,.18), transparent 60%)}
.art-tone-5::after{background:radial-gradient(60% 80% at 50% 60%, rgba(91,156,255,.38), transparent 60%),radial-gradient(50% 70% at 80% 20%, rgba(120,255,200,.16), transparent 60%)}
.art-grain{
  position:absolute;inset:0;z-index:6;
  pointer-events:none;
  opacity:.22;
  mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='1' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.6 0'/></filter><rect width='180' height='180' filter='url(%23n)'/></svg>");
}
.cat-visual::after{
  /* horizontal scan band that drifts down */
  content:'';position:absolute;inset:0;z-index:7;
  pointer-events:none;
  background:
    repeating-linear-gradient(0deg, rgba(255,255,255,.025) 0 1px, transparent 1px 3px);
  mix-blend-mode:overlay;
  opacity:.6;
}

.cat-frames{
  display:flex;flex-direction:column;
  gap:clamp(60px,8vh,120px);
  padding:60px 0 25vh;
}
.frame{
  min-height:50vh;
  display:flex;flex-direction:column;justify-content:center;gap:18px;
  max-width:480px;
}
.frame-no{
  font-family:var(--mono);font-size:13px;letter-spacing:.16em;
  color:var(--violet);font-weight:500;
}
.frame-no span{color:var(--soft);margin-left:4px}
.frame h3{
  font-family:var(--sans);font-weight:400;
  font-size:clamp(32px,4.4vw,56px);
  line-height:1.02;letter-spacing:-.025em;
  color:var(--ink);
}
.frame.featured h3{
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}
.frame p{
  font-family:var(--sans);font-size:17px;line-height:1.6;
  color:var(--ink-2);
}
.frame .games{
  list-style:none;
  display:flex;flex-wrap:wrap;gap:8px;
  margin-top:8px;
}
.frame .games li{
  font-family:var(--mono);font-size:12px;letter-spacing:.02em;
  padding:5px 12px;border-radius:999px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--ink-2);
  transition:border-color .2s,background .2s,color .2s;
}
.frame .games li:hover{
  border-color:rgba(163,128,255,.4);
  background:rgba(163,128,255,.08);
  color:var(--ink);
}

@media (max-width:780px){
  .cat-rail{grid-template-columns:1fr;gap:0}
  .cat-visual{
    position:sticky;top:96px;transform:none;
    aspect-ratio:16/10;max-height:40vh;
    margin-bottom:30px;
  }
  .cat-frames{padding:6vh 0;gap:60px}
  .frame{min-height:0}

  /* Scale catalog visual UI for narrow screens */
  .art-icon{width:46%}
  .art-num{font-size:clamp(140px,42vw,220px)}
  .art-tag{font-size:10px;padding:6px 10px;left:16px;bottom:16px;letter-spacing:.16em}
  .art-orbit{font-size:10px}
  .art-orbit li{
    padding:3px 7px;letter-spacing:.12em;
    transform:
      translate(-50%,-50%)
      rotate(var(--a))
      translateY(calc(-1 * var(--r) * 0.45))
      rotate(calc(-1 * var(--a)));
  }
}

/* Hide the orbit on really tight screens — keep number + icon + tag only */
@media (max-width:480px){
  .art-orbit{display:none}
  .art-icon{width:42%}
  .cat-visual{max-height:34vh}
}

/* ──────────────────────────────────────────────────────────────
   SECTOR_SC — starfield + transit route + HUD coordinates
   ────────────────────────────────────────────────────────────── */
.sc{
  position:relative;
  padding:var(--pad-y) var(--pad-x);
  overflow:hidden;
  margin-top:var(--pad-y);
  isolation:isolate;
  background:linear-gradient(180deg, var(--bg-deep) 0%, #08071a 50%, var(--bg-deep) 100%);
}
.sc-atmos{position:absolute;inset:0;z-index:0;pointer-events:none}

/* dense starfield via two layered radial dot images */
.sc-stars{
  position:absolute;inset:-10%;
  background-image:
    radial-gradient(1px 1px at 5%  12%, #fff 99%, transparent 100%),
    radial-gradient(1px 1px at 18% 78%, rgba(255,255,255,.7) 99%, transparent 100%),
    radial-gradient(1.5px 1.5px at 32% 22%, rgba(163,128,255,.9) 99%, transparent 100%),
    radial-gradient(1px 1px at 47% 58%, rgba(255,255,255,.5) 99%, transparent 100%),
    radial-gradient(1px 1px at 64% 14%, rgba(91,156,255,.85) 99%, transparent 100%),
    radial-gradient(1.5px 1.5px at 78% 64%, rgba(255,122,209,.85) 99%, transparent 100%),
    radial-gradient(1px 1px at 86% 36%, #fff 99%, transparent 100%),
    radial-gradient(1px 1px at 92% 88%, rgba(255,255,255,.5) 99%, transparent 100%);
  background-size:1000px 700px;
  background-repeat:repeat;
  opacity:.85;
  animation:starsDrift 80s linear infinite;
}
.sc-stars-far{
  background-image:
    radial-gradient(.6px .6px at 10% 38%, rgba(255,255,255,.5) 99%, transparent 100%),
    radial-gradient(.6px .6px at 25% 12%, rgba(255,255,255,.4) 99%, transparent 100%),
    radial-gradient(.8px .8px at 42% 84%, rgba(163,128,255,.7) 99%, transparent 100%),
    radial-gradient(.6px .6px at 55% 28%, rgba(255,255,255,.4) 99%, transparent 100%),
    radial-gradient(.6px .6px at 72% 60%, rgba(255,255,255,.5) 99%, transparent 100%),
    radial-gradient(.8px .8px at 88% 18%, rgba(91,156,255,.6) 99%, transparent 100%),
    radial-gradient(.6px .6px at 95% 70%, rgba(255,255,255,.3) 99%, transparent 100%);
  background-size:700px 500px;
  opacity:.7;
  animation:starsDrift 140s linear infinite reverse;
}
@keyframes starsDrift{
  from{transform:translateX(0)}
  to{transform:translateX(-1000px)}
}

.sc-nebula{
  position:absolute;inset:-20%;
  background:
    radial-gradient(40vw 35vw at 18% 30%, rgba(91,156,255,.18), transparent 60%),
    radial-gradient(45vw 40vw at 82% 75%, rgba(163,128,255,.22), transparent 65%),
    radial-gradient(35vw 30vw at 50% 50%, rgba(255,122,209,.08), transparent 60%);
  filter:blur(40px);
  mix-blend-mode:screen;
  opacity:.7;
}

.sc-coords{
  position:absolute;inset:0;
  background-image:
    linear-gradient(to right, rgba(163,128,255,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(163,128,255,.05) 1px, transparent 1px);
  background-size:120px 120px;
  background-position:0 0;
  mask-image:radial-gradient(ellipse 80% 70% at 50% 50%, #000 30%, transparent 90%);
  -webkit-mask-image:radial-gradient(ellipse 80% 70% at 50% 50%, #000 30%, transparent 90%);
}

.sc-scan{
  position:absolute;left:0;right:0;height:120px;
  top:-120px;
  background:linear-gradient(to bottom, transparent 0%, rgba(163,128,255,.12) 50%, transparent 100%);
  filter:blur(8px);
  animation:scanSweep 11s ease-in-out infinite;
  pointer-events:none;
  mix-blend-mode:screen;
}
@keyframes scanSweep{
  0%   {top:-160px;opacity:0}
  10%  {opacity:.5}
  90%  {opacity:.5}
  100% {top:110%;opacity:0}
}

/* HUD coordinate readouts in 4 corners */
.sc-hud{
  position:absolute;z-index:3;
  font-family:var(--mono);font-size:10.5px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--soft);
  padding:6px 10px;border-radius:4px;
  background:rgba(6,5,13,.5);
  border:1px solid var(--line);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}
.sc-hud-tl{top:24px;left:24px}
.sc-hud-tr{top:24px;right:24px;color:var(--violet)}
.sc-hud-bl{bottom:24px;left:24px}
.sc-hud-br{bottom:24px;right:24px;color:var(--blue)}
@media (max-width:760px){
  .sc-hud{font-size:9.5px;padding:5px 8px}
  .sc-hud-bl,.sc-hud-br{display:none}
}

.sc-inner{
  position:relative;z-index:2;
  max-width:900px;margin:0 auto;
  display:flex;flex-direction:column;align-items:center;
  text-align:center;gap:18px;
  padding-top:40px;
}
.sc-eyebrow{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--violet);
  padding:7px 16px;border-radius:999px;
  background:rgba(163,128,255,.1);
  border:1px solid rgba(163,128,255,.25);
}
.sc-title{
  font-family:var(--sans);font-weight:300;
  font-size:clamp(54px,8vw,128px);
  line-height:.94;letter-spacing:-.04em;
  color:var(--ink);
  background:linear-gradient(180deg,#fff 0%,#e5dff5 60%,#a796d0 100%);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}
.sc-body{
  font-family:var(--sans);
  font-size:18px;line-height:1.6;
  color:var(--ink-2);
  max-width:600px;
  margin:8px 0 24px;
}
.sc-body b{color:var(--ink);font-weight:500}

/* transit route */
.sc-route{
  position:relative;
  width:min(900px,100%);
  margin:30px 0 40px;
  height:80px;
}
.sc-route svg{width:100%;height:100%;overflow:visible}
.sc-route .route-stars circle{
  filter:drop-shadow(0 0 6px rgba(163,128,255,.5));
}
.sc-route .route-ship{
  filter:drop-shadow(0 0 8px #fff) drop-shadow(0 0 14px rgba(255,255,255,.6));
}
.route-labels{
  position:absolute;
  left:0;right:0;top:60%;
  font-family:var(--mono);font-size:9.5px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--dim);
  pointer-events:none;
}
.route-labels span{
  position:absolute;
  transform:translateX(-50%);
  white-space:nowrap;
}
.route-labels span:first-child{transform:translateX(0)}
.route-labels span:last-child{transform:translateX(-100%)}

.sc-ops{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:12px;width:100%;max-width:820px;
  margin:8px 0 30px;
}
.sc-ops .op{
  background:rgba(10,8,21,.55);
  border:1px solid var(--line);
  border-radius:14px;
  padding:18px 14px;
  display:flex;flex-direction:column;gap:6px;align-items:center;
  text-align:center;
  backdrop-filter:blur(10px) saturate(140%);
  -webkit-backdrop-filter:blur(10px) saturate(140%);
  transition:border-color .2s,transform .2s,background .2s;
}
.sc-ops .op:hover{
  transform:translateY(-2px);
  border-color:rgba(163,128,255,.35);
  background:rgba(163,128,255,.08);
}
.sc-ops .op-i{
  color:var(--violet);font-size:14px;
  opacity:.85;
}
.sc-ops .op-k{
  font-family:var(--sans);font-weight:500;font-size:14.5px;
  color:var(--ink);letter-spacing:-.005em;
}
.sc-ops .op-v{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;
  color:var(--dim);text-transform:uppercase;
}
.sc-note{
  font-family:var(--sans);font-size:13.5px;line-height:1.6;
  color:var(--dim);max-width:520px;margin-top:18px;
}
@media (max-width:760px){
  .sc-ops{grid-template-columns:repeat(2,1fr)}
  .sc-route{display:none}
  .sc-title{font-size:clamp(40px,12vw,68px);letter-spacing:-.03em}
  .sc-inner{padding-top:60px;gap:14px}
  .sc-eyebrow{font-size:10.5px;letter-spacing:.18em;padding:6px 12px}
  .sc-body{font-size:15.5px}
}

/* ──────────────────────────────────────────────────────────────
   JOIN
   ────────────────────────────────────────────────────────────── */
.join{
  position:relative;
  padding:var(--pad-y) var(--pad-x);
}
.join-inner{
  max-width:920px;margin:0 auto;
  text-align:center;
  display:flex;flex-direction:column;align-items:center;gap:18px;
}
.join h2{
  font-family:var(--sans);font-weight:300;
  font-size:clamp(54px,8vw,128px);
  line-height:.96;letter-spacing:-.04em;
  color:var(--ink);
  background:linear-gradient(180deg,#fff 0%,#e5dff5 60%,#a796d0 100%);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}
.join > .join-inner > p{
  font-family:var(--sans);font-size:18.5px;line-height:1.55;
  color:var(--ink-2);max-width:540px;
  margin-bottom:30px;
}

.steps{
  list-style:none;
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
  width:100%;max-width:860px;
  text-align:left;
  margin:10px 0 50px;
}
.steps li{
  background:rgba(255,255,255,.025);
  border:1px solid var(--line);
  border-radius:18px;padding:24px;
  display:flex;flex-direction:column;gap:10px;
  position:relative;overflow:hidden;
  transition:border-color .25s,transform .25s,background .25s;
}
.steps li::before{
  content:'';position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(to right, transparent, rgba(163,128,255,.4), transparent);
  opacity:0;transition:opacity .25s;
}
.steps li:hover{
  transform:translateY(-3px);
  border-color:rgba(163,128,255,.35);
  background:rgba(163,128,255,.05);
}
.steps li:hover::before{opacity:1}
.s-n{
  font-family:var(--mono);font-size:12px;letter-spacing:.18em;
  color:var(--violet);font-weight:500;
}
.steps li b{
  font-family:var(--sans);font-weight:500;font-size:17px;
  color:var(--ink);letter-spacing:-.005em;display:block;margin-bottom:4px;
}
.steps li code{
  font-family:var(--mono);font-size:14px;
  background:rgba(163,128,255,.1);
  border:1px solid rgba(163,128,255,.2);
  color:var(--violet);
  padding:1px 7px;border-radius:5px;
}
.steps li span{
  font-family:var(--sans);font-size:14.5px;line-height:1.5;color:var(--ink-2);
}

.join-cta{
  display:flex;flex-direction:column;align-items:center;gap:18px;
}
.join-foot{
  font-family:var(--sans);font-size:14px;color:var(--dim);
}
.join-foot a{color:var(--violet);transition:color .15s}
.join-foot a:hover{color:var(--pink)}
@media (max-width:760px){
  .steps{grid-template-columns:1fr}
}

/* ──────────────────────────────────────────────────────────────
   FOOT
   ────────────────────────────────────────────────────────────── */
.foot{
  border-top:1px solid var(--line);
  padding:36px var(--pad-x);
  margin-top:60px;
}
.foot-inner{
  max-width:1280px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;flex-wrap:wrap;
}
.foot-brand{
  display:flex;align-items:center;gap:10px;
  color:var(--dim);
  font-family:var(--sans);font-size:13.5px;
}
.foot-brand svg{color:var(--soft)}
.foot-links{display:flex;gap:24px}
.foot-links a{
  color:var(--dim);font-family:var(--sans);font-size:13.5px;
  transition:color .15s;
}
.foot-links a:hover{color:var(--ink)}

/* ──────────────────────────────────────────────────────────────
   Global mobile pass
   ────────────────────────────────────────────────────────────── */
@media (max-width:780px){
  :root{--pad-y:clamp(60px,14vw,100px); --pad-x:clamp(16px,5vw,28px)}
  .nav{padding:14px clamp(16px,4vw,24px);grid-template-columns:auto auto}
  .nav-links{display:none}
  .marquee-track{font-size:11px;letter-spacing:.18em;gap:24px;padding-left:24px}
  .cat-intro h2{font-size:clamp(36px,9vw,52px)}
  .frame h3{font-size:clamp(28px,8vw,42px)}
  .join h2,.sc-title{padding-bottom:.04em}
  .steps{gap:14px}
  .steps li{padding:18px}
  .foot-inner{flex-direction:column;align-items:flex-start;gap:14px}
  .hero-scrollcue{bottom:24px}
}

/* ──────────────────────────────────────────────────────────────
   reduced-motion
   ────────────────────────────────────────────────────────────── */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:0.001s!important;
    animation-iteration-count:1!important;
    transition-duration:0.001s!important;
  }
  html{scroll-behavior:auto}
  .bg-mesh,.bg-cursor{animation:none!important}
  .reveal{opacity:1;transform:none;filter:none}
}