:root {
  --bg: #0f1220;
  --panel: #171b2e;
  --line: #262b45;
  --text: #e8eaf6;
  --muted: #9aa0bf;
  --a: #7c9cff;
  --b: #5fe0c3;
  --c: #ff8fb1;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); }
body { font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: inherit; text-decoration: none; }
.top { display: flex; justify-content: space-between; align-items: center; max-width: 1040px; margin: 0 auto; padding: 18px 16px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: .2px; }
.dot { width: 14px; height: 14px; border-radius: 50%; background: linear-gradient(135deg, var(--a), var(--b)); }
nav a { margin-left: 18px; color: var(--muted); }
nav a:hover { color: var(--text); }
main { max-width: 1040px; margin: 0 auto; padding: 0 16px 40px; }
.hero { padding: 36px 0 26px; }
.hero h1 { font-size: clamp(28px, 5vw, 44px); margin: 0 0 10px; }
.hero p { color: var(--muted); max-width: 640px; margin: 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 16px; transition: transform .15s, border-color .15s; display: block; }
.card:hover { transform: translateY(-2px); border-color: var(--a); }
.card h2 { margin: 12px 0 6px; font-size: 20px; }
.card p { margin: 0 0 12px; color: var(--muted); font-size: 15px; }
.tag { font-size: 12px; color: var(--b); border: 1px solid var(--line); border-radius: 999px; padding: 2px 10px; }
.art { height: 120px; border-radius: 12px; background: #11152a; position: relative; overflow: hidden; }
.art-mirrors { background: repeating-linear-gradient(45deg, #11152a 0 18px, #151a33 18px 36px); }
.art-mirrors::after { content: ""; position: absolute; left: 10%; top: 50%; width: 80%; height: 3px; background: var(--b); box-shadow: 0 0 12px var(--b); }
.art-pulse::after { content: ""; position: absolute; inset: 25% 40%; border: 3px solid var(--c); border-radius: 50%; }
.art-memory { background: radial-gradient(circle at 30% 40%, var(--a) 0 14px, transparent 15px), radial-gradient(circle at 60% 60%, var(--c) 0 14px, transparent 15px), radial-gradient(circle at 80% 30%, var(--b) 0 14px, transparent 15px), #11152a; }
.about { margin-top: 36px; color: var(--muted); max-width: 700px; }
.about h2 { color: var(--text); }
.bottom { text-align: center; color: var(--muted); padding: 24px 16px; border-top: 1px solid var(--line); font-size: 14px; }
/* Игры */
.game { max-width: 560px; margin: 0 auto; text-align: center; }
.game h1 { margin: 6px 0; }
.game .hint { color: var(--muted); margin: 0 0 14px; }
.board { display: grid; gap: 6px; margin: 0 auto; touch-action: manipulation; }
.cell { aspect-ratio: 1; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 26px; user-select: none; cursor: pointer; }
.cell.lit { background: #173b39; border-color: var(--b); }
.cell.src { background: #1f2a55; }
.cell.dst { background: #3a1f33; }
.bar { display: flex; justify-content: center; gap: 12px; margin: 14px 0; color: var(--muted); }
button { background: var(--a); color: #0b0e1a; border: 0; border-radius: 10px; padding: 10px 18px; font-weight: 700; cursor: pointer; }
.back { display: inline-block; margin: 16px 0; color: var(--muted); }
canvas { max-width: 100%; background: var(--panel); border-radius: 16px; border: 1px solid var(--line); }
.art-shades { background: linear-gradient(90deg, #3d6fd6 0 25%, #3d6fd6 25% 50%, #4677dc 50% 75%, #3d6fd6 75%); }
.art-signal::after { content: ""; position: absolute; left: 20%; top: 50%; width: 60%; height: 4px; background: var(--b); box-shadow: 0 0 10px var(--b); }
.art-signal::before { content: ""; position: absolute; left: 50%; top: 20%; width: 4px; height: 60%; background: #4a5075; }
.art-chain { background: radial-gradient(circle at 25% 50%, var(--b) 0 10px, transparent 11px), radial-gradient(circle at 50% 50%, var(--b) 0 10px, transparent 11px), radial-gradient(circle at 75% 50%, var(--a) 0 10px, transparent 11px), #11152a; }
.art-orbits { background: radial-gradient(circle, var(--a) 0 14px, transparent 15px, transparent 30px, #262b45 31px, transparent 33px, transparent 48px, #262b45 49px, transparent 51px), #11152a; }
.chain .cell { font-weight: 700; }
#msg:empty { display: none; }