/*! blocks — styles.css © 2026 2bworks. All rights reserved. https://2bworks.games */
:root{--bg: #0a0a0a;--board-panel: #242424;--card: #000000;--outline: rgba(255, 255, 255, .92);--square: #2f2f2f;--grid: rgba(0, 0, 0, .35);--accent: #ab8dfa;--good: #4ed35e;--bad: #ff5722;--light: #e3e3e3;--primary-text: #0a0a0a;--text: #ffffff;--muted: #9b9b9b;--b0: #f6c453;--b1: #86c7c4;--b2: #8aa9ee;--b3: #f2726f;--b4: #9cc55b;--b5: #c79ae0;--b6: #f0a868;--b7: #6fbf9c}body.light{--bg: #f1f1f4;--board-panel: #dededf;--card: #ffffff;--outline: rgba(0, 0, 0, .88);--square: #c9c9cf;--grid: rgba(0, 0, 0, .18);--light: #14141a;--primary-text: #f4f4f6;--text: #101014;--muted: #5c5c66}*{box-sizing:border-box}html,body{margin:0;height:100%;overflow:hidden;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,system-ui,sans-serif;-webkit-tap-highlight-color:transparent}.app{max-width:460px;height:100vh;height:100dvh;margin:0 auto;padding:max(10px,env(safe-area-inset-top)) 12px calc(12px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:10px}.bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.tools{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end;margin-left:auto}[hidden]{display:none}select{background:var(--card);color:var(--text);border:2px solid var(--outline);border-radius:999px;padding:8px 14px;font-size:15px;font-weight:700}.clock{font-size:20px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--text)}.left{font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--muted)}.viewport{position:relative;flex:1 1 auto;min-height:0;overflow:hidden;border-radius:26px;background:var(--board-panel);touch-action:none;overscroll-behavior:contain;display:grid;place-items:center}.stage{position:relative}.stage.shake{animation:shake .3s}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-4px)}75%{transform:translate(4px)}}.board{display:grid;grid-template-columns:repeat(var(--cols, 5),var(--cell));padding:var(--pad)}.cell{width:var(--cell);height:var(--cell);border-radius:calc(var(--cell) * .16)}.cell.on{background:var(--square);box-shadow:inset 0 0 0 1px var(--grid)}.placed{position:absolute;top:var(--pad);left:var(--pad);pointer-events:none}.block,.drop{position:absolute;width:var(--cell);height:var(--cell);border-radius:calc(var(--cell) * .16)}.block{background:var(--colour)}.block.right{box-shadow:inset 0 0 0 3px var(--good)}.block.wrong{box-shadow:inset 0 0 0 3px var(--bad)}.drop{box-shadow:inset 0 0 0 3px var(--accent)}.drop.bad{box-shadow:inset 0 0 0 3px var(--bad)}.tray{flex:0 0 auto;max-height:min(30vh,190px);overflow-y:auto;overscroll-behavior:contain;touch-action:none;display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px 16px;padding:8px 6px;background:var(--card);border:1px solid var(--outline);border-radius:18px}.tray:empty{display:none}.chip{position:relative;cursor:grab}.chip .cell{position:absolute;width:var(--tray-cell);height:var(--tray-cell);border-radius:calc(var(--tray-cell) * .18);background:var(--colour)}.chip.taken{opacity:.25}.ghost{position:fixed;top:0;left:0;z-index:20;pointer-events:none;will-change:transform}.ghost.returning{transition:transform .18s ease}.ghost.hidden{display:none}.ghost .cell{position:absolute;width:var(--cell);height:var(--cell);border-radius:calc(var(--cell) * .16);background:var(--colour);box-shadow:0 6px 14px #00000073}.btn{background:var(--card);color:var(--text);border:2px solid var(--outline);border-radius:999px;padding:16px 20px;font-size:17px;font-weight:700;cursor:pointer}.btn.mini{padding:5px 9px;font-size:12px;border-width:1px}.btn:active{transform:scale(.97)}.btn.primary{background:var(--light);border-color:var(--light);color:var(--primary-text)}.btn.hidden{display:none}.overlay{position:fixed;inset:0;background:#000000b8;display:grid;place-items:center;padding:20px;z-index:30}.overlay.hidden{display:none}.panel{background:var(--card);border-radius:22px;border:2px solid var(--outline);padding:26px 22px;text-align:center;max-width:320px;width:100%}.panel h2{margin:0 0 8px;font-size:28px;font-weight:800}.panel p{margin:0 0 18px;color:var(--muted);font-size:15px;line-height:1.5}.panel .btn{width:100%}.panel .btn+.btn{margin-top:10px}