/* Graphican — shared site chrome for every page except the home page (which carries the same rules in home.css):
   tokens · .bt buttons · .gh header · .ft footer · .fxl light · .gc lit card · .rv / .wd / [data-sp] motion. Behaviour: assets/site.js */
@font-face { font-family:"iBrand"; font-display:swap; src:url(/assets/fonts/ibrand.otf) format("opentype"); }
:root {
  --bg3:#16161f; --bg4:#1e1e2a; --line2:rgba(255,255,255,.16); --mut:#a6a8b8; --blue:#7b64ff; --grad:linear-gradient(100deg, #6d56fa, #a497ff);
  --f:"Inter", "Helvetica Neue", Arial, sans-serif; --r:16px; --r-sm:12px;
  --t-fast:.18s; --t:.36s; --t-lg:.6s; --ease:cubic-bezier(.22, 1, .36, 1);
  --pad:clamp(18px, 4vw, 48px); --max:1240px;
}
html { scroll-padding-top:76px; }

/* ---------- buttons ---------- */
.bt { display:inline-flex; align-items:center; justify-content:center; gap:10px; min-height:50px; padding:0 22px; border-radius:999px; font-weight:700; font-size:15px; letter-spacing:.01em; white-space:nowrap; border:1px solid transparent; transition:background var(--t-fast), border-color var(--t-fast), color var(--t-fast); }
.bt i { font-style:normal; transition:transform var(--t) var(--ease); }
.bt:hover i { transform:translateX(4px); }
.bt.ghost { border-color:var(--line2); color:var(--text); }
.bt.ghost:hover { background:rgba(255,255,255,.06); border-color:rgba(255,255,255,.3); }
.bt.sm { min-height:40px; padding:0 16px; font-size:13.5px; }
.bt.pri { position:relative; overflow:hidden; isolation:isolate; color:#fff; border-color:rgba(185,173,255,.62);
  background:radial-gradient(120% 190% at 50% 50%, rgba(16,13,34,.97) 34%, rgba(58,42,160,.72) 76%, rgba(123,100,255,.78) 100%);
  box-shadow:inset 0 0 0 1px rgba(231,227,253,.07), inset 0 0 16px rgba(123,100,255,.6), inset 0 -10px 22px -10px rgba(123,100,255,.55), 0 0 30px -10px rgba(109,86,250,.95);
  transition:box-shadow var(--t) var(--ease), border-color var(--t) var(--ease); }
.bt.pri::before { content:""; position:absolute; top:0; left:-40%; z-index:1; width:40%; height:1.5px; pointer-events:none; background:linear-gradient(90deg, transparent, rgba(231,227,253,.95), transparent); filter:drop-shadow(0 0 5px rgba(164,151,255,.9)); animation:edge 5.5s var(--ease) infinite; }
@keyframes edge { 0%, 20% { left:-40%; } 70%, 100% { left:100%; } }
.bt.pri:hover { background:radial-gradient(120% 190% at 50% 50%, rgba(22,18,48,.97) 26%, rgba(70,52,180,.8) 70%, rgba(143,123,255,.9) 100%); border-color:rgba(231,227,253,.85);
  box-shadow:inset 0 0 0 1px rgba(231,227,253,.1), inset 0 0 22px rgba(143,123,255,.8), inset 0 -10px 26px -8px rgba(143,123,255,.7), 0 0 40px -8px rgba(123,100,255,1); }
@media (prefers-reduced-motion:reduce) { .bt.pri::before { animation:none; left:30%; } }

/* ---------- header ---------- */
.gh { position:fixed; left:0; right:0; top:0; z-index:60; height:64px; display:flex; align-items:center; gap:14px; padding:0 var(--pad); border-bottom:1px solid transparent; transition:background var(--t), border-color var(--t), backdrop-filter var(--t); }
.gh.scrolled { background:rgba(10,10,16,.78); -webkit-backdrop-filter:blur(14px); backdrop-filter:blur(14px); border-bottom-color:var(--line-soft, rgba(255,255,255,.09)); }
.gh-logo { font:400 22px/1 var(--brand); letter-spacing:.01em; color:#fff; padding:6px 0; flex:none; }
.gh-nav { display:flex; gap:4px; margin:0 auto; }
.gh-nav a { padding:9px 14px; border-radius:999px; font-size:14px; font-weight:500; color:var(--mut); transition:color var(--t-fast), background var(--t-fast); }
.gh-nav a:hover { color:#fff; background:rgba(255,255,255,.06); }
.gh .lang-sw { margin-left:0 !important; border-color:var(--line2) !important; }
.gh .lang-sw button[aria-pressed="true"] { background:rgba(123,100,255,.35) !important; }
.gh-menu { display:none; width:42px; height:42px; border-radius:12px; border:1px solid var(--line2); flex-direction:column; align-items:center; justify-content:center; gap:6px; flex:none; }
.gh-menu i { width:18px; height:1.5px; background:#fff; transition:transform var(--t) var(--ease); }
.gh-menu[aria-expanded="true"] i:first-child { transform:translateY(3.75px) rotate(45deg); }
.gh-menu[aria-expanded="true"] i:last-child { transform:translateY(-3.75px) rotate(-45deg); }
@media (max-width:860px) {
  .gh { gap:10px; }
  .gh-logo { margin-right:auto; }
  .gh-menu { display:flex; }
  .gh-nav { position:absolute; left:12px; right:12px; top:68px; margin:0; flex-direction:column; gap:2px; padding:8px; border-radius:var(--r); background:rgba(14,16,22,.97); border:1px solid var(--line2); opacity:0; visibility:hidden; transform:translateY(-8px); transition:opacity var(--t), transform var(--t) var(--ease), visibility var(--t); }
  .gh-nav.open { opacity:1; visibility:visible; transform:none; }
  .gh-nav a { padding:14px 14px; font-size:16px; color:var(--text); border-radius:12px; }
}
@media (max-width:420px) { .gh > .lang-sw { display:none !important; } }

/* ---------- motion: reveal, words sharpening, page progress ---------- */
.js .rv { opacity:0; transform:translateY(22px); transition:opacity var(--t-lg) var(--ease), transform var(--t-lg) var(--ease); }
.js .rv.in { opacity:1; transform:none; }
.wd { display:inline-block; --w:clamp(0, (var(--p, 1) * (var(--n, 1) + 2) - var(--i, 0)) / 2, 1);
  filter:blur(calc((1 - var(--w)) * .16em)); opacity:calc(.18 + var(--w) * .82); transform:translate3d(0, calc((1 - var(--w)) * .22em), 0); }
.one { filter:blur(calc((1 - var(--p, 1)) * .12em)); opacity:calc(.2 + var(--p, 1) * .8); }
.sp-bar { position:fixed; left:0; right:0; top:0; z-index:70; height:2px; background:var(--grad); transform-origin:left; transform:scaleX(var(--sp, 0)); pointer-events:none; }

/* ---------- the light: a violet beam and two thin arcs ---------- */
.fxl { position:absolute; inset:0; overflow:hidden; pointer-events:none; z-index:0; -webkit-mask-image:linear-gradient(180deg, #000 55%, transparent 96%); mask-image:linear-gradient(180deg, #000 55%, transparent 96%); }
.fxl .beam { position:absolute; width:120vmax; height:22vmax; left:-34vmax; top:54%; border-radius:50%; mix-blend-mode:screen; opacity:.5; filter:blur(70px); transform:rotate(-27deg);
  background:linear-gradient(90deg, rgba(74,59,201,0) 0%, rgba(74,59,201,.5) 24%, var(--v3) 48%, var(--v2) 72%, var(--v1) 92%, #fff 100%); animation:beam 18s ease-in-out infinite alternate; }
@keyframes beam { from { transform:rotate(-27deg) translate3d(0, 0, 0); } to { transform:rotate(-24deg) translate3d(4vmax, -2vmax, 0); } }
.fxl svg { position:absolute; inset:0; width:100%; height:100%; }
.fxl circle { fill:none; stroke:rgba(255,255,255,.22); stroke-width:1; vector-effect:non-scaling-stroke; }

/* ---------- a card lit from its edges, with a highlight travelling along the top edge ---------- */
.gc { position:relative; isolation:isolate; border:1px solid rgba(164,151,255,.42); border-radius:22px; overflow:hidden;
  background:radial-gradient(130% 150% at 50% 50%, rgba(10,10,16,.97) 38%, rgba(40,28,120,.5) 78%, rgba(109,86,250,.42) 100%);
  box-shadow:inset 0 0 0 1px rgba(231,227,253,.06), inset 0 0 46px rgba(109,86,250,.38), inset 0 0 120px rgba(52,34,158,.35), 0 0 70px -28px rgba(109,86,250,.75);
  transition:box-shadow var(--t-lg) var(--ease), border-color var(--t-lg) var(--ease); }
.gc::before { content:""; position:absolute; top:-1px; left:-260px; z-index:1; width:260px; height:2px; pointer-events:none;
  background:linear-gradient(90deg, transparent, rgba(231,227,253,.95), transparent); filter:drop-shadow(0 0 8px rgba(164,151,255,.9)); animation:edgeC 7s var(--ease) infinite; }
@keyframes edgeC { 0%, 10% { left:-260px; } 75%, 100% { left:100%; } }
.gc:hover { border-color:rgba(185,173,255,.7); box-shadow:inset 0 0 0 1px rgba(231,227,253,.1), inset 0 0 60px rgba(109,86,250,.5), inset 0 0 130px rgba(52,34,158,.4), 0 0 90px -24px rgba(109,86,250,.9); }

/* ---------- footer ---------- */
.ft { position:relative; z-index:1; margin-top:clamp(72px, 10vw, 140px); border-top:1px solid var(--line-soft, rgba(255,255,255,.09)); padding:clamp(40px, 6vw, 72px) var(--pad) 28px; font-family:var(--f); }
.ft > * { max-width:var(--max); margin-left:auto; margin-right:auto; }
.ft-top { display:flex; flex-wrap:wrap; align-items:baseline; gap:8px 24px; margin-bottom:36px; } .ft-top p { color:var(--mut); font-size:14.5px; }
.ft-cols { display:grid; grid-template-columns:repeat(5, minmax(0, 1fr)); gap:28px 20px; }
.ft-cols b { display:block; margin-bottom:12px; font-size:12.5px; letter-spacing:.12em; text-transform:uppercase; color:var(--dim); font-weight:600; }
.ft-cols a { display:block; padding:5px 0; font-size:14.5px; color:var(--mut); overflow-wrap:anywhere; transition:color var(--t-fast); } .ft-cols a:hover { color:#fff; }
.ft-copy { display:flex; flex-wrap:wrap; justify-content:space-between; gap:8px 20px; margin-top:40px; padding-top:20px; border-top:1px solid var(--line-soft, rgba(255,255,255,.09)); font-size:13px; color:var(--dim); } .ft-copy a:hover { color:#fff; }
@media (max-width:820px) { .ft-cols { grid-template-columns:repeat(2, minmax(0, 1fr)); } }
.ft-word { display:block; width:100%; height:auto; max-width:var(--max); margin:0 auto clamp(28px, 5vw, 56px); overflow:visible; }
.ft-word text { font:400 250px/1 var(--brand); fill:rgba(164,151,255,calc(clamp(0, var(--p, 1) * 3 - 2, 1) * .1)); stroke:rgba(245,244,250,.9); stroke-width:1.2; stroke-dasharray:900; stroke-dashoffset:calc((1 - var(--p, 1)) * 900); }
.ft-word .gd path { fill:none; stroke:rgba(164,151,255,.7); stroke-width:1; stroke-dasharray:3 6; opacity:clamp(0, var(--p, 1) * 2, 1); }
.ft-word .gd path + path { stroke:rgba(245,244,250,.6); stroke-dasharray:none; }

@media (prefers-reduced-motion:reduce) {
  .js .rv { opacity:1 !important; transform:none !important; }
  .fxl .beam, .gc::before { animation:none; } .gc::before { left:calc(50% - 130px); }
  .sp-bar { display:none; }
}

/* footer: «Миний тухай» */
.ft-me p { font-size:14px; line-height:1.55; color:var(--mut); margin:-2px 0 8px; max-width:30ch; }

/* install the app: a quiet control in the header (and the menu on phones) — shown by pwa.js only where installing is possible */
.gh-inst { display:inline-flex; align-items:center; gap:7px; padding:9px 14px; border-radius:999px; font:600 14px/1 var(--f, "Inter", sans-serif); color:#c4b5ff; background:rgba(123,100,255,.12); border:1px solid rgba(164,151,255,.35); cursor:pointer; white-space:nowrap; transition:color .18s, background .18s, border-color .18s; }
.gh-inst[hidden] { display:none; }
.gh-inst svg { width:16px; height:16px; fill:none; stroke:currentColor; stroke-width:1.9; stroke-linecap:round; stroke-linejoin:round; }
.gh-inst:hover { color:#fff; background:rgba(123,100,255,.26); border-color:rgba(185,173,255,.8); }
@media (max-width:860px) { .gh-inst { justify-content:center; margin-top:6px; padding:14px; font-size:16px; border-radius:12px; } }