:root{
  --bg:#050506;
  --ink:#f2f3f8;
  --muted:#9aa0b8;
  --accent:#e8ff2b;            /* neon yellow */
  --accent-soft:rgba(232,255,43,.55);
  --glass:rgba(255,255,255,.06);
  --glass-brd:rgba(255,255,255,.14);
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;width:100%;overflow:hidden;background:var(--bg)}
body{
  font-family:var(--sans); color:var(--ink);
  /* fallback ground if WebGL is unavailable */
  background:
    radial-gradient(120% 90% at 30% 20%, rgba(255,255,255,.05), transparent 55%),
    radial-gradient(120% 90% at 78% 80%, rgba(232,255,43,.14), transparent 55%),
    var(--bg);
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
}
::selection{background:var(--accent); color:#0b0c04}
canvas#gl{position:fixed; inset:0; width:100%; height:100%; display:block; z-index:0; touch-action:none}
.scrim{
  position:fixed; inset:0; z-index:1; pointer-events:none;
  background:radial-gradient(58% 52% at 50% 45%, rgba(0,0,0,.6), rgba(0,0,0,.26) 46%, transparent 72%);
}
.stage{
  position:fixed; inset:0; z-index:2;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:clamp(14px,3vw,22px);
  padding:calc(env(safe-area-inset-top) + 24px) 22px calc(env(safe-area-inset-bottom) + 24px);
  text-align:center; pointer-events:none;
}

/* ---- Family crest: ivory wreath, hologram-foil K ---------------------- */
.crest{
  position:relative;
  width:min(60vmin,390px); aspect-ratio:1;
  filter:drop-shadow(0 8px 44px rgba(0,0,0,.55)) drop-shadow(0 0 64px rgba(232,255,43,.10));
}
.crest .wreath{display:block; width:100%; height:100%}
/* The K's box inside the 1005×1005 wreath space (from the logo kit) */
.k-flat,.k-holo{position:absolute; left:38.41%; top:37.05%; width:25.26%; height:25.81%}
.k-flat{object-fit:contain}
.k-holo{display:none}
@supports ((-webkit-mask-image:url("")) or (mask-image:url(""))){
  .k-flat{visibility:hidden}
  .k-holo{
    display:block; overflow:hidden;
    -webkit-mask:url("/img/kulikov-k.svg") no-repeat center / contain;
            mask:url("/img/kulikov-k.svg") no-repeat center / contain;
    /* Foil: a specular hotspot + an iridescent spectrum. Both track
       --hx/--hy, set from pointer/tilt by liquid.js — like tipping the
       printed card under a light. */
    background:
      radial-gradient(70% 55% at var(--hx,50%) var(--hy,42%), rgba(255,255,255,.65), rgba(255,255,255,0) 46%),
      linear-gradient(112deg,
        #6fd2ff, #b892ff 18%, #ff9bd4 34%, #ffd84a 50%,
        #f8ff70 62%, #8effd2 80%, #6fd2ff);
    background-size:100% 100%, 340% 340%;
    background-position:0 0, var(--hx,50%) var(--hy,42%);
    filter:saturate(1.35) contrast(1.06);
  }
  /* A glint that sweeps across the foil every few seconds */
  .k-holo::after{
    content:""; position:absolute; inset:-25%;
    background:linear-gradient(104deg, transparent 44%, rgba(255,255,255,.42) 50%, transparent 56%);
    transform:translateX(-140%);
    animation:glint 7.5s ease-in-out 2.4s infinite;
  }
}
@keyframes glint{
  0%{transform:translateX(-140%)}
  16%{transform:translateX(140%)}
  100%{transform:translateX(140%)}
}

/* ---- Identity ---------------------------------------------------------- */
/* Visually hidden, still indexable/readable: the crest is the visible mark */
.sr-only{
  position:absolute; width:1px; height:1px; margin:-1px; padding:0; border:0;
  clip-path:inset(50%); overflow:hidden; white-space:nowrap;
}
/* .name/.tagline still dress the 404 page */
h1.name{
  margin:0; font-weight:600;
  font-size:clamp(1.02rem,3.4vw,1.5rem);
  line-height:1.1; letter-spacing:.34em; text-indent:.34em; text-transform:uppercase;
  text-shadow:0 1px 26px rgba(0,0,0,.6);
}
.tagline{
  margin:clamp(-10px,-2vw,-6px) 0 0; font-size:clamp(.68rem,2.6vw,.86rem);
  font-weight:500; letter-spacing:.3em; text-indent:.3em; text-transform:uppercase;
  color:rgba(236,238,247,.72); text-shadow:0 1px 22px rgba(0,0,0,.55);
}
.contact{margin-top:clamp(6px,1.6vw,12px); pointer-events:auto}
a.email{
  display:inline-flex; align-items:center; gap:.6em;
  font-family:var(--mono); font-size:clamp(1.02rem,4.7vw,1.42rem); font-weight:600;
  letter-spacing:.01em; color:var(--ink); text-decoration:none;
  padding:.64em .98em .64em 1.08em; border-radius:999px;
  background:var(--glass); border:1px solid var(--glass-brd);
  -webkit-backdrop-filter:blur(12px) saturate(1.3); backdrop-filter:blur(12px) saturate(1.3);
  box-shadow:0 6px 34px rgba(0,0,0,.38);
  transition:transform .18s ease, box-shadow .3s ease, border-color .3s ease;
}
a.email:hover{transform:translateY(-2px); border-color:var(--accent-soft);
  box-shadow:0 10px 42px rgba(0,0,0,.42), 0 0 36px -6px var(--accent)}
a.email:active{transform:translateY(0)}
a.email .ci{width:1.05em; height:1.05em; opacity:.7; flex:0 0 auto}
a.email:focus-visible{outline:2px solid var(--accent); outline-offset:3px}
/* 404 "back home" link: same pill, sans face */
a.email.ghost{font-family:var(--sans); font-weight:600; letter-spacing:.01em}
.hint{
  position:fixed; left:0; right:0; z-index:2; pointer-events:none; text-align:center;
  bottom:calc(env(safe-area-inset-bottom) + 30px);
  font-size:.72rem; letter-spacing:.28em; text-transform:uppercase; color:rgba(154,160,184,.62);
  transition:opacity .7s ease; opacity:1;
}
.hint.gone{opacity:0}
.foot{
  position:fixed; z-index:2; pointer-events:none;
  top:calc(env(safe-area-inset-top) + 16px); right:18px;
  font-family:var(--mono); font-size:.68rem; letter-spacing:.06em; color:rgba(154,160,184,.55);
}
.toast{
  position:fixed; left:50%; top:calc(env(safe-area-inset-top) + 18px); transform:translate(-50%,-14px);
  z-index:5; pointer-events:none; font-family:var(--mono); font-size:.8rem; font-weight:600;
  color:#0b0c04; background:var(--accent); padding:.5em .9em; border-radius:999px;
  opacity:0; transition:opacity .25s ease, transform .25s ease; box-shadow:0 8px 24px rgba(0,0,0,.35);
}
.toast.show{opacity:1; transform:translate(-50%,0)}
/* Opt-in chips (device tilt on iOS, fullscreen on touch devices):
   a small rail tucked into the top-left corner */
.chips{
  position:fixed;
  top:calc(env(safe-area-inset-top) + 14px);
  left:calc(env(safe-area-inset-left) + 14px);
  z-index:4;
  display:flex; flex-direction:column; align-items:flex-start;
  gap:8px; pointer-events:auto;
}
.chip{
  cursor:pointer;
  display:inline-flex; align-items:center; gap:.45em;
  font-family:var(--sans); font-size:.72rem; font-weight:600; letter-spacing:.14em; text-transform:uppercase;
  color:var(--ink); padding:.5em .9em; border-radius:999px;
  background:rgba(10,10,12,.5); border:1px solid var(--glass-brd);
  -webkit-backdrop-filter:blur(12px); backdrop-filter:blur(12px);
  box-shadow:0 6px 24px rgba(0,0,0,.35);
  transition:transform .18s ease, border-color .3s ease, box-shadow .3s ease;
  animation:rise .8s .5s cubic-bezier(.2,.7,.2,1) both;
}
.chip svg{opacity:.8}
.chip:hover{transform:translateY(-2px); border-color:var(--accent-soft); box-shadow:0 8px 28px rgba(0,0,0,.4), 0 0 26px -8px var(--accent)}
.chip:active{transform:none}
.chip:focus-visible{outline:2px solid var(--accent); outline-offset:3px}
.reveal{opacity:0; transform:translateY(14px); animation:rise .95s cubic-bezier(.2,.7,.2,1) forwards}
.d1{animation-delay:.06s}.d2{animation-delay:.2s}.d3{animation-delay:.36s}
@keyframes rise{to{opacity:1; transform:none}}
@media (prefers-reduced-motion:reduce){
  .reveal{animation:none; opacity:1; transform:none}
  .k-holo::after{animation:none; transform:translateX(140%)}
  a.email,.hint{transition:none}
}