@font-face{font-family:'Prata';src:url('/assets/fonts/prata-cyr.woff2') format('woff2');font-display:swap;unicode-range:U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:'Prata';src:url('/assets/fonts/prata-lat.woff2') format('woff2');font-display:swap;unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Plex';src:url('/assets/fonts/plex-cyr.woff2') format('woff2');font-display:swap;unicode-range:U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:'Plex';src:url('/assets/fonts/plex-lat.woff2') format('woff2');font-display:swap;unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Mono';src:url('/assets/fonts/mono-cyr.woff2') format('woff2');font-display:swap;unicode-range:U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:'Mono';src:url('/assets/fonts/mono-lat.woff2') format('woff2');font-display:swap;unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

:root{
  --night:#131009;--paper:#f2ede1;--soft:#cbbfa4;--faint:#8d8471;--glow:#ffd9a0;--red:#c23b22;
  --display:'Prata',Georgia,serif;--body:'Plex','Segoe UI',system-ui,sans-serif;--mono:'Mono',Consolas,monospace;
  --pad:48px;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
html,body{margin:0;background:var(--night);color:var(--paper)}
body{font-family:var(--body);font-size:17px;line-height:1.5;overflow-x:hidden;-webkit-font-smoothing:antialiased}
body.locked{overflow:hidden}
a{color:var(--glow)}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}

#gl{position:fixed;inset:0;width:100%;height:100%;display:block;z-index:0}
.film{position:fixed;inset:0;z-index:1;pointer-events:none;transition:background .9s ease;
  background:radial-gradient(ellipse at 50% 55%,rgba(19,16,9,0) 42%,rgba(19,16,9,.62) 100%),linear-gradient(180deg,rgba(19,16,9,0) 60%,rgba(19,16,9,.5) 100%);}
body.after .film{background:radial-gradient(ellipse at 55% 45%,rgba(19,16,9,0) 40%,rgba(19,16,9,.55) 100%),linear-gradient(180deg,rgba(19,16,9,.08) 0%,rgba(19,16,9,0) 30%,rgba(19,16,9,0) 50%,rgba(19,16,9,.72) 100%),linear-gradient(90deg,rgba(19,16,9,.55) 0%,rgba(19,16,9,0) 45%);}
.film::after{content:"";position:absolute;inset:0;opacity:.055;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='160' height='160' filter='url(%23n)'/></svg>");}

/* загрузка */
.loader{position:fixed;inset:0;z-index:40;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:var(--night);transition:opacity .9s ease,visibility .9s}
.loader.off{opacity:0;visibility:hidden}
.loader-mark{font-family:var(--display);font-size:34px;letter-spacing:.01em}
.loader-sub{font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--soft)}
.loader-bar{width:180px;height:1px;background:rgba(242,237,225,.16);margin-top:10px;overflow:hidden}
.loader-bar i{display:block;height:100%;width:0;background:var(--glow);transition:width .3s ease}
.nogl{position:fixed;inset:0;z-index:41;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;padding:24px;text-align:center;background:var(--night)}
.nogl img{max-width:min(90vw,900px);height:auto;border:1px solid rgba(242,237,225,.14)}
.nogl p{max-width:460px;color:var(--soft)}

/* шапка */
.top{position:fixed;left:0;right:0;top:0;z-index:20;display:flex;justify-content:space-between;align-items:flex-start;padding:30px var(--pad) 0;pointer-events:none}
.top>*{pointer-events:auto}
.brand{display:flex;flex-direction:column;gap:6px;text-decoration:none;color:var(--paper);text-shadow:0 1px 14px rgba(19,16,9,.6)}
.brand-name{font-family:var(--display);font-size:26px;line-height:1}
.brand-sub{font-family:var(--mono);font-size:11px;line-height:1;letter-spacing:.18em;text-transform:uppercase;color:var(--soft)}
.chapters{display:flex;gap:30px;padding:12px 18px;border-radius:999px;background:rgba(19,16,9,.42);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.chapters a{display:flex;flex-direction:column;gap:8px;font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--soft);text-decoration:none;transition:color .3s}
.chapters a i{display:block;height:1px;background:var(--glow);transform:scaleX(0);transform-origin:left;transition:transform .4s ease}
.chapters a.on{color:var(--glow)}
.chapters a.on i{transform:scaleX(1)}

/* главы */
#scroll{position:relative;z-index:10;pointer-events:none}
.ch{min-height:100vh;min-height:100svh;position:relative;display:flex;align-items:flex-end;padding:0 var(--pad) 150px}
.ch .text{max-width:640px;display:flex;flex-direction:column;gap:18px;pointer-events:auto;opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .8s ease}
.ch.on .text{opacity:1;transform:none}
.kicker{font-family:var(--mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--glow)}
h1,h2{font-family:var(--display);font-weight:400;margin:0;color:var(--paper);text-wrap:balance;text-shadow:0 2px 30px rgba(19,16,9,.5)}
h1{font-size:clamp(44px,5.6vw,78px);line-height:1.02}
h2{font-size:clamp(34px,3.6vw,52px);line-height:1.06}
.ch p{margin:0;max-width:470px;color:var(--soft);text-wrap:pretty;text-shadow:0 1px 16px rgba(19,16,9,.7)}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:8px}
.btn{display:inline-flex;align-items:center;height:50px;padding:0 26px;border-radius:999px;background:var(--paper);color:var(--night);font-family:var(--mono);font-size:13px;letter-spacing:.14em;text-transform:uppercase;text-decoration:none;transition:transform .25s ease,background .25s}
.btn:hover{transform:translateY(-2px);background:var(--glow)}
.btn.ghost{background:transparent;color:var(--paper);box-shadow:inset 0 0 0 1px rgba(242,237,225,.32)}
.btn.ghost:hover{background:rgba(242,237,225,.08)}
#process{align-items:center;padding-bottom:170px}
#process .text{margin-right:auto}
.video{margin:0;width:min(46vw,760px);display:flex;flex-direction:column;gap:12px;pointer-events:auto;opacity:0;transform:translateX(30px);transition:opacity .9s ease .15s,transform .9s ease .15s}
#process.on .video{opacity:1;transform:none}
.video video{width:100%;height:auto;display:block;border-radius:16px;border:1px solid rgba(242,237,225,.14);box-shadow:0 40px 120px rgba(0,0,0,.55);background:#000}
.video figcaption{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint)}
.foot{position:absolute;left:var(--pad);bottom:44px;font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--faint);max-width:500px;line-height:1.6;pointer-events:auto}

/* нижняя панель управления */
.hud{position:fixed;left:0;right:0;bottom:0;z-index:20;display:grid;grid-template-columns:1fr auto 1fr;align-items:end;padding:0 var(--pad) 44px;pointer-events:none}
.hud>*{pointer-events:auto}
.hint{display:flex;align-items:center;gap:14px;transition:opacity .6s}
.hint.off{opacity:0;pointer-events:none}
.hint i{width:1px;height:44px;background:linear-gradient(180deg,var(--glow),rgba(255,217,160,0));animation:hint 2.4s ease-in-out infinite}
@keyframes hint{0%,100%{transform:scaleY(1);opacity:1}50%{transform:scaleY(.55);opacity:.5}}
.hint span{font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--soft)}
.toggle{display:flex;align-items:center;padding:5px;border:1px solid rgba(242,237,225,.22);border-radius:999px;background:rgba(19,16,9,.55);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);justify-self:center}
.toggle button{display:flex;align-items:center;gap:10px;height:50px;padding:0 26px 0 22px;border-radius:999px;font-family:var(--mono);font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--soft);transition:background .35s,color .35s}
.toggle button .dot{width:8px;height:8px;border-radius:50%;border:1px solid currentColor;transition:background .35s,box-shadow .35s,border-color .35s}
.toggle button.on{background:var(--paper);color:var(--night)}
#btn-before.on .dot{background:var(--red);border-color:var(--red)}
#btn-after.on .dot{background:var(--glow);border-color:var(--glow);box-shadow:0 0 10px var(--glow)}
.smeta{display:flex;flex-direction:column;align-items:flex-end;gap:8px;justify-self:end;text-align:right}
.smeta .label{font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--soft)}
.smeta .sum{font-family:var(--display);font-size:44px;line-height:1;font-variant-numeric:tabular-nums;text-shadow:0 2px 24px rgba(19,16,9,.6)}
.smeta .note{font-size:13px;color:var(--faint);max-width:260px;line-height:1.4;transition:color .4s}
.smeta .note.glow{color:var(--glow);font-family:var(--mono);font-size:12px}

/* панель материалов */
.panel{position:fixed;right:var(--pad);top:50%;transform:translateY(-50%);z-index:15;width:328px;padding:22px 22px 24px;display:flex;flex-direction:column;gap:22px;border:1px solid rgba(242,237,225,.16);border-radius:18px;background:rgba(19,16,9,.74);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);box-shadow:0 30px 80px rgba(0,0,0,.4);animation:panel .45s cubic-bezier(.2,.8,.2,1)}
@keyframes panel{from{opacity:0;transform:translateY(-50%) translateX(24px)}to{opacity:1;transform:translateY(-50%)}}
.panel-head{display:flex;align-items:baseline;gap:12px}
.panel-title{font-family:var(--display);font-size:22px;flex:1}
.panel-area{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--soft)}
.panel-close{color:var(--soft);display:flex;align-self:flex-start;padding:2px;margin:-2px -6px 0 0}
.panel-close:hover{color:var(--paper)}
.panel-label{font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--faint);margin-bottom:12px}
.swatches{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.sw{display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--soft);font-size:12px;transition:color .3s}
.sw i{width:60px;height:60px;border-radius:12px;background-size:cover;background-position:center;box-shadow:inset 0 0 0 1px rgba(242,237,225,.2);transition:box-shadow .3s,transform .3s}
.sw:hover i{transform:translateY(-2px)}
.sw.on{color:var(--paper)}
.sw.on i{box-shadow:0 0 0 2px var(--night),0 0 0 4px var(--glow)}
.sw small{font-family:var(--mono);font-size:10px;color:var(--faint)}
.panel-delta{display:flex;justify-content:space-between;align-items:center;gap:12px;padding-top:18px;border-top:1px solid rgba(242,237,225,.12);font-size:13px;color:var(--soft)}
.panel-delta b{font-family:var(--mono);font-weight:400;color:var(--glow);white-space:nowrap}

@media (max-width:900px){
  :root{--pad:22px}
  body{font-size:15px}
  .top{padding-top:20px}
  .brand-name{font-size:22px}
  .brand-sub{font-size:10px}
  .chapters{position:fixed;right:14px;top:50%;transform:translateY(-50%);flex-direction:column;gap:14px;padding:0;background:none;backdrop-filter:none;-webkit-backdrop-filter:none}
  .chapters a span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  .chapters a i{width:5px;height:5px;border-radius:3px;background:var(--soft);opacity:.5;transform:none;transition:height .3s,opacity .3s,background .3s}
  .chapters a.on i{height:22px;opacity:1;background:var(--glow)}
  .ch{padding-bottom:230px;align-items:flex-end}
  .ch .text{gap:12px}
  h1{font-size:40px}
  h2{font-size:30px}
  .ch p{font-size:15px}
  #process{flex-direction:column;align-items:stretch;justify-content:flex-end;gap:22px;padding-bottom:250px}
  .video{width:100%}
  .foot{bottom:190px;font-size:10px}
  .hud{grid-template-columns:1fr;gap:12px;padding-bottom:22px}
  .hint{display:none}
  .toggle{justify-self:stretch}
  .toggle button{flex:1;justify-content:center;height:46px}
  .smeta{flex-direction:row;align-items:baseline;justify-content:space-between;justify-self:stretch;gap:12px;text-align:left}
  .smeta .sum{font-size:26px}
  .smeta .note{max-width:none;flex:1;text-align:right}
  .panel{left:0;right:0;top:auto;bottom:0;transform:none;width:auto;border-radius:22px 22px 0 0;padding:20px 22px 150px;animation:sheet .45s cubic-bezier(.2,.8,.2,1)}
  @keyframes sheet{from{transform:translateY(40px);opacity:0}to{transform:none;opacity:1}}
  .swatches{display:flex;overflow-x:auto;gap:14px;padding-bottom:4px;scrollbar-width:none}
  .swatches::-webkit-scrollbar{display:none}
  .sw{flex:0 0 auto}
  .sw i{width:64px;height:64px;border-radius:14px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .hint i{animation:none}
}