*{box-sizing:border-box}
:root{--cell:32px;--accent:#ff7a1a;--accent2:#2dd4bf;--panel:#171b38;--panel2:#232850;--line:#2e3468;--text:#f5f6ff;--muted:#c6c9e6}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);background:radial-gradient(1100px 550px at 50% -120px,#2b2f63 0%,#12142e 55%,#0b0d22 100%);min-height:100vh}
a{color:#ffb35c}
header.site{position:sticky;top:0;z-index:20;background:rgba(13,15,36,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);padding:10px 12px}
header.site .wrap{max-width:1020px;margin:0 auto;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
header.site .logo{font-size:24px;font-weight:900;color:#fff;text-decoration:none;margin-right:auto}
header.site .logo span{color:var(--accent)}
nav.top{display:flex;gap:8px;flex-wrap:wrap}
nav.top a{background:var(--panel2);color:#fff;text-decoration:none;padding:10px 14px;border-radius:999px;font-weight:700;font-size:14px;min-height:42px;display:flex;align-items:center}
nav.top a:active{background:var(--accent)}
main{max-width:1020px;margin:0 auto;padding:16px 14px 44px}
h1{font-size:clamp(24px,5.5vw,36px);margin:8px 0 6px;line-height:1.15}
.lead{color:var(--muted);line-height:1.55;margin:0 0 6px;font-size:16px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin-top:18px}
.card{background:linear-gradient(160deg,#1d2148,#141736);border:1px solid var(--line);border-radius:20px;padding:20px;text-decoration:none;color:#fff;box-shadow:0 10px 24px rgba(0,0,0,.35)}
.card:active{border-color:var(--accent);transform:scale(.99)}
.card .emoji{font-size:42px}
.card h2{margin:8px 0 6px;font-size:21px}
.card p{color:var(--muted);margin:0;line-height:1.5;font-size:14px}
.card .play{display:inline-block;margin-top:12px;background:var(--accent);color:#fff;font-weight:800;padding:10px 18px;border-radius:999px;font-size:14px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:18px;margin-top:16px}
.panel h2{margin-top:0;font-size:21px}
.panel p,.panel li{color:#dde0f2;line-height:1.65}
.gamebox{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:14px;margin-top:12px;box-shadow:0 12px 28px rgba(0,0,0,.35)}
.controls{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:6px 0 12px}
.controls label{font-weight:700;font-size:14px;color:var(--muted)}
button,.btn{background:var(--accent);color:#fff;border:0;border-radius:12px;padding:12px 20px;font-weight:800;cursor:pointer;font-size:16px;min-height:48px}
button:active,.btn:active{transform:scale(.97)}
button.ghost{background:var(--panel2)}
button.on{background:var(--accent2);color:#06251f}
select{background:var(--panel2);color:#fff;border:1px solid #3a4070;border-radius:10px;padding:12px;font-size:15px;min-height:48px}
.scorebar{display:flex;gap:10px;flex-wrap:wrap;margin:10px 0}
.scorebox{background:var(--panel2);border-radius:12px;padding:8px 16px;font-weight:800;font-size:18px}
.scorebox small{display:block;color:#aeb1d4;font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.5px}
.msg{min-height:24px;font-weight:800;color:#ffd166;font-size:16px}
.hint{color:var(--muted);font-size:14px;margin:8px 0 0}
footer{color:#8f92b5;text-align:center;padding:22px 14px;font-size:13px}
footer a{color:#ffb35c}
/* 2048 */
#board2048{display:grid;gap:8px;background:#262b52;padding:10px;border-radius:16px;width:100%;max-width:520px;margin:0 auto;touch-action:none}
.tile{aspect-ratio:1;display:flex;align-items:center;justify-content:center;border-radius:10px;font-weight:800;background:#323763;color:#fff;user-select:none;-webkit-user-select:none}
.t2{background:#eee4da;color:#776e65}.t4{background:#ede0c8;color:#776e65}.t8{background:#f2b179}.t16{background:#f59563}
.t32{background:#f67c5f}.t64{background:#f65e3b}.t128{background:#edcf72;color:#776e65}.t256{background:#edcc61;color:#776e65}
.t512{background:#edc850;color:#776e65}.t1024{background:#edc53f;color:#776e65}.t2048{background:#edc22e;color:#fff}
/* touch pad (2048 + snake) */
.dpad{display:grid;grid-template-columns:repeat(3,64px);gap:8px;justify-content:center;margin-top:12px}
.dpad button{padding:0;height:56px;font-size:20px;border-radius:14px;background:var(--panel2);border:1px solid var(--line)}
.dpad button:active{background:var(--accent)}
.dpad span{display:block}
/* snake */
#snakeCanvas{background:#0a0c1d;border:2px solid var(--line);border-radius:14px;display:block;margin:0 auto;width:100%;max-width:430px;height:auto;touch-action:none}
/* minesweeper */
#mineScroll{overflow-x:auto;padding-bottom:6px}
#mineBoard{display:grid;gap:3px;justify-content:center;margin:10px auto;width:max-content}
.cell{width:var(--cell);height:var(--cell);border-radius:7px;background:#323763;color:#fff;font-weight:800;border:0;padding:0;font-size:15px;min-height:0}
.cell.open{background:#141736;color:#ffd166}
.cell.mine{background:#c92a2a}
.cell.flag{background:#e8590c}
/* idle */
#bigCookie{font-size:clamp(90px,26vw,130px);background:rgba(255,255,255,.04);border:2px solid var(--line);border-radius:50%;width:190px;height:190px;cursor:pointer;display:block;margin:8px auto;transition:transform .05s;line-height:1}
#bigCookie:active{transform:scale(.93)}
.shop{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px}
.shopItem{background:var(--panel2);border-radius:14px;padding:14px}
.shopItem h3{margin:4px 0}
.shopItem p{margin:4px 0;color:var(--muted);font-size:14px}
.shopItem button{width:100%}
.shopItem button:disabled{opacity:.45}
/* canvas games (breakout, tap bird) */
.cv{background:#0a0c1d;border:2px solid var(--line);border-radius:14px;display:block;margin:0 auto;width:100%;height:auto;touch-action:none}
.cv-break{max-width:560px}
.cv-tap{max-width:430px}
/* memory match */
.mboard{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;max-width:480px;margin:0 auto}
.mcard{aspect-ratio:1;border-radius:14px;background:var(--panel2);border:2px solid var(--line);font-size:clamp(26px,8vw,42px);display:flex;align-items:center;justify-content:center;padding:0;min-height:0}
.mcard .face{visibility:hidden}
.mcard.open{background:#fff3e2}
.mcard.open .face,.mcard.done .face{visibility:visible}
.mcard.done{background:#14532d;border-color:#22c55e}
/* simon */
.simonBoard{display:grid;grid-template-columns:1fr 1fr;gap:12px;max-width:380px;margin:0 auto}
.pad{aspect-ratio:1.35;border-radius:18px;border:0;opacity:.5;min-height:0;transition:opacity .12s,transform .12s,box-shadow .12s}
.pad.lit{opacity:1;transform:scale(1.04)}
.pad.p0{background:#22c55e;box-shadow:0 0 0 rgba(34,197,94,0)}
.pad.p1{background:#ef4444}
.pad.p2{background:#eab308}
.pad.p3{background:#3b82f6}
.pad.p0.lit{box-shadow:0 0 34px #22c55e}
.pad.p1.lit{box-shadow:0 0 34px #ef4444}
.pad.p2.lit{box-shadow:0 0 34px #eab308}
.pad.p3.lit{box-shadow:0 0 34px #3b82f6}
/* confetti */
.confetti{position:fixed;top:-16px;width:10px;height:14px;z-index:99;pointer-events:none;border-radius:2px;animation:cfall 1.6s ease-in forwards}
@keyframes cfall{to{transform:translateY(106vh) rotate(680deg);opacity:.6}}
@media (max-width:640px){
  :root{--cell:29px}
  .grid{grid-template-columns:1fr 1fr}
  .card{padding:14px}
  .card .emoji{font-size:32px}
  .card h2{font-size:17px}
  main{padding:12px 10px 36px}
  .gamebox{padding:10px}
}