:root{color-scheme:light;--bg: #0b0c10;--panel: #10131c;--muted: #9fb0c0;--text: #e8f0ff;--accent: #7cf3c5;--accent-2: #5ad1ff;--danger: #ff5f6d;--glow: 0 0 24px rgba(124, 243, 197, .45);font-family:Space Grotesk,Inter,system-ui,-apple-system,sans-serif}*{box-sizing:border-box}body{margin:0;background:#080b11;color:var(--text);min-height:100vh}.app-shell{max-width:540px;margin:0 auto;padding:18px 16px 64px}.topbar{display:flex;justify-content:space-between;align-items:center;gap:12px}h1{margin:0;font-size:28px;letter-spacing:-.4px}.lede{margin:8px 0 16px;color:var(--muted);max-width:60ch;font-size:15px}.lede--tight{margin-top:6px}.eyebrow{text-transform:uppercase;font-size:12px;color:var(--accent);letter-spacing:.2em}.menu-btn{background:#101522;color:var(--text);border:1px solid rgba(255,255,255,.14);border-radius:12px;padding:8px 11px;font-size:15px;cursor:pointer;font-weight:700;line-height:1.1}.menu-btn.ghost{background:#0c1018}.card{background:#0d1017;border:1px solid rgba(255,255,255,.07);border-radius:16px;padding:14px 16px;box-shadow:0 12px 28px #00000047}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px;font-weight:600}.field span{color:var(--muted);font-size:13px}.field input{background:#0a0f17;border:1px solid rgba(255,255,255,.07);color:var(--text);padding:10px 12px;border-radius:10px;font-size:15px}.field.inline{flex-direction:row;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}.segmented{display:inline-flex;background:#0c1018;border:1px solid rgba(255,255,255,.1);border-radius:12px;overflow:hidden}.segmented button{background:transparent;color:var(--muted);border:none;padding:8px 12px;font-weight:700;font-size:14px;cursor:pointer;transition:all .2s}.segmented button.active{background:var(--accent);color:#0c1018}.segmented button:hover{color:var(--text)}.stack{margin-top:18px;display:flex;flex-direction:column;gap:16px}.game-panel{background:#0b0f17;border:1px solid rgba(255,255,255,.08);border-radius:18px;padding:16px;box-shadow:0 24px 60px #00000059}.hud{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.hud--compact{grid-template-columns:repeat(3,minmax(0,1fr))}.hud-block{background:#ffffff05;padding:10px 12px;border-radius:12px;border:1px solid rgba(255,255,255,.04)}.label{margin:0;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-size:11px}.value{margin:4px 0 0;font-weight:700}.value.score{font-size:28px}.value.badge{display:inline-block;background:#7cf3c51f;border:1px solid rgba(124,243,197,.35);padding:6px 10px;border-radius:10px}.value.small{font-size:12px;color:var(--muted)}.controls-row{display:none}.timebar{width:100%;height:8px;background:#ffffff0f;border-radius:999px;overflow:hidden;margin-top:6px}.timebar-fill{height:100%;background:var(--accent);transition:width .1s}.arena{position:relative;margin-top:16px;display:grid;gap:8px;background:radial-gradient(circle at 30% 20%,rgba(124,243,197,.08),transparent),#0b0f17;border-radius:16px;padding:12px;border:1px solid rgba(255,255,255,.06);min-height:360px}.cell{aspect-ratio:1;border-radius:12px;border:1px solid rgba(255,255,255,.05);background:#ffffff05;color:var(--text);font-size:22px;cursor:pointer;transition:transform .08s,background .1s,box-shadow .1s;touch-action:manipulation}.cell:hover{transform:translateY(-2px)}.cell--active{background:radial-gradient(circle,rgba(124,243,197,.4) 0%,rgba(124,243,197,.1) 55%,transparent 70%);box-shadow:0 0 24px #7cf3c580}.cell--hazard{background:radial-gradient(circle,rgba(255,95,109,.35) 0%,rgba(255,95,109,.08) 60%,transparent 75%);border-color:#ff5f6d66;box-shadow:0 0 16px #ff5f6d73;color:#ff5f6d}.cell--life{animation:lifeDrain var(--life, 1.2s) linear forwards}.cell--flash-hit{position:relative;overflow:hidden;animation:pop .18s ease-out;box-shadow:0 0 28px #7cf3c5b3,0 0 60px #5ad1ff59}.cell--flash-hit:after{content:"";position:absolute;top:-20%;right:-20%;bottom:-20%;left:-20%;background:radial-gradient(circle at 50% 50%,rgba(255,255,255,.9) 0%,rgba(124,243,197,.4) 35%,rgba(90,209,255,.3) 55%,transparent 70%);mix-blend-mode:screen;animation:lightning .18s ease-out;pointer-events:none}.cell--flash-miss{animation:shake .16s ease-in-out}.cell--flash-hazard{animation:shake .2s ease-in-out;filter:saturate(1.3)}.overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;background:#00070ebf;border-radius:14px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.overlay-card{display:flex;flex-direction:column;align-items:center;gap:8px}.headline{font-size:28px;margin:0 0 6px;text-align:center}.sub{margin:0 0 12px;color:var(--muted);text-align:center}.sub.small{font-size:12px}.cta{background:var(--accent);color:#041017;border:none;border-radius:12px;padding:12px 18px;font-weight:800;cursor:pointer;box-shadow:0 10px 24px #00000040}.footer-row{display:none}.hint{margin:0}.card.leaderboard{align-self:start}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.card h3{margin:0}.card ol{list-style:decimal-leading-zero;padding-left:20px;margin:0;display:flex;flex-direction:column;gap:8px}.card li{display:grid;grid-template-columns:1fr auto;gap:6px;align-items:baseline}.card .name{font-weight:700}.card .score{font-variant-numeric:tabular-nums;color:var(--accent)}.card .time{color:var(--muted);font-size:12px;grid-column:1 / -1}.drawer{position:fixed;inset:auto 0 0 0;background:#080c12f5;border-top:1px solid rgba(255,255,255,.08);border-radius:18px 18px 0 0;padding:14px 16px 26px;transform:translateY(110%);transition:transform .28s ease;max-width:100%;width:100%;margin:0 auto;left:0;right:0;z-index:20}.drawer--open{transform:translateY(0)}.drawer__header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.drawer__content{display:flex;flex-direction:column;gap:12px}.drawer__content .card.leaderboard{width:100%}.scrim{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000059;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:10}.muted{color:var(--muted)}.error{color:var(--danger)}@keyframes pop{0%{transform:scale(.94)}70%{transform:scale(1.05)}to{transform:scale(1)}}@keyframes shake{0%{transform:translate(0)}25%{transform:translate(-4px)}50%{transform:translate(3px)}75%{transform:translate(-3px)}to{transform:translate(0)}}@keyframes lifeDrain{0%{transform:scale(1);opacity:1}70%{transform:scale(.94);opacity:.9}to{transform:scale(.82);opacity:.45}}@keyframes lightning{0%{opacity:.95;transform:scale(.9) rotate(0)}50%{opacity:1;transform:scale(1.05) rotate(2deg)}to{opacity:0;transform:scale(1.15) rotate(-3deg)}}@media (min-width: 720px){.app-shell{max-width:920px;padding:24px 22px 88px}.topbar h1{font-size:34px}.stack{flex-direction:row}.game-panel{flex:1}.drawer{position:static;transform:none;border-radius:18px;padding:0;background:transparent;border:none}.drawer__content{flex-direction:row;gap:16px}.drawer__content>.card{flex:1}.card.leaderboard{min-width:320px}.scrim{display:none}}@media (max-width: 540px){.arena{gap:8px;padding:12px;min-height:320px}.cell{border-radius:10px;font-size:18px}}