:root{--bg:#171b31;--bg-raised:#232948;--well:#12162a;--text:#eef1ff;--text-dim:#8b93b8;--accent:#ffd43b;--c0:#4dabf7;--c1:#51cf66;--c2:#ffd43b;--c3:#ff922b;--c4:#ff6b6b;--c5:#cc5de8;--c6:#3bc9db;--c7:#f783ac;--board-size:min(92vw, 60dvh, 560px)}*{box-sizing:border-box}html,body{height:100%;margin:0;padding:0}body{background:radial-gradient(circle at 50% 0%, #262d55 0%, var(--bg) 65%);color:var(--text);overscroll-behavior:none;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;font-family:system-ui,-apple-system,Segoe UI,sans-serif}#app{height:100dvh}.game{max-width:640px;height:100%;padding:calc(8px + env(safe-area-inset-top)) 12px calc(12px + env(safe-area-inset-bottom));flex-direction:column;justify-content:space-between;align-items:center;gap:10px;margin:0 auto;display:flex}.c0{--block:var(--c0)}.c1{--block:var(--c1)}.c2{--block:var(--c2)}.c3{--block:var(--c3)}.c4{--block:var(--c4)}.c5{--block:var(--c5)}.c6{--block:var(--c6)}.c7{--block:var(--c7)}.block{background:linear-gradient(160deg, #ffffff38 0%, #fff0 45%), var(--block);box-shadow:inset 0 var(--bevel,3px) 0 #ffffff52, inset var(--bevel,3px) 0 0 #ffffff1a, inset 0 calc(-1 * var(--bevel,3px)) 0 #00000047, inset calc(-1 * var(--bevel,3px)) 0 0 #00000024;border-radius:16%}.score-header{width:var(--board-size);flex-direction:column;align-items:center;min-height:68px;display:flex;position:relative}.best{color:var(--text-dim);letter-spacing:.04em;font-size:14px;font-weight:600}.score{font-variant-numeric:tabular-nums;font-size:clamp(34px,9vmin,48px);font-weight:800;line-height:1.1}.combo-banner{z-index:5;color:var(--accent);text-shadow:0 2px 10px #0009;pointer-events:none;font-size:clamp(18px,5vmin,26px);font-weight:800;animation:1.4s ease-out both combo-pop;position:absolute;top:100%;left:50%}@keyframes combo-pop{0%{opacity:0;transform:translate(-50%)scale(.6)}15%{opacity:1;transform:translate(-50%)scale(1.08)}70%{opacity:1;transform:translate(-50%)scale(1)}to{opacity:0;transform:translate(-50%)scale(1)}}.board{width:var(--board-size);aspect-ratio:1;touch-action:none;background:#00000040;border-radius:14px;grid-template-rows:repeat(8,1fr);grid-template-columns:repeat(8,1fr);gap:4px;padding:8px;display:grid;position:relative;box-shadow:inset 0 2px 10px #0006}.cell{background:var(--well);border-radius:16%;box-shadow:inset 0 2px 4px #00000073}.cell.block{background:linear-gradient(160deg, #ffffff38 0%, #fff0 45%), var(--block);box-shadow:inset 0 var(--bevel,3px) 0 #ffffff52, inset var(--bevel,3px) 0 0 #ffffff1a, inset 0 calc(-1 * var(--bevel,3px)) 0 #00000047, inset calc(-1 * var(--bevel,3px)) 0 0 #00000024}.cell.would-clear{outline-offset:-2px;filter:brightness(1.3);outline:2px solid #ffffffb3}.cell.hint{outline-offset:-2px;outline:2px dashed #ffd43bbf;animation:1.2s ease-in-out infinite hint-pulse}@keyframes hint-pulse{0%,to{filter:brightness()}50%{filter:brightness(1.7)}}.preview{pointer-events:none;z-index:1;border-radius:16%}.preview.ok{opacity:.45}.preview.bad{opacity:.35;background:#ff4d5e}.phantom{pointer-events:none;z-index:2;animation:.32s ease-in both clear-pop}@keyframes clear-pop{0%{opacity:1;filter:brightness();transform:scale(1)}35%{opacity:1;filter:brightness(1.6);transform:scale(1.12)}to{opacity:0;filter:brightness(1.6);transform:scale(0)}}.score-pop{z-index:3;pointer-events:none;color:var(--accent);text-shadow:0 2px 8px #000000b3;font-size:clamp(20px,5.5vmin,30px);font-weight:800;position:absolute;transform:translate(-50%,-100%)}.score-pop span{animation:.7s ease-out both pop-float;display:inline-block}@keyframes pop-float{0%{opacity:0;transform:translateY(10px)scale(.8)}25%{opacity:1;transform:translateY(0)scale(1.05)}to{opacity:0;transform:translateY(-28px)scale(1)}}.tray{width:var(--board-size);touch-action:none;grid-template-columns:repeat(3,1fr);gap:10px;min-height:112px;display:grid}.tray-slot{--bevel:2px;touch-action:none;background:#ffffff0a;border-radius:12px;justify-content:center;align-items:center;padding:8px;display:flex}.tray-slot.hint{outline-offset:-2px;outline:2px dashed #ffd43bbf;animation:1.2s ease-in-out infinite hint-pulse}.tray-piece.dragging{opacity:.25}.piece-glyph{display:grid}.drag-layer{z-index:40;pointer-events:none;will-change:transform;position:fixed;top:0;left:0}.drag-ghost{filter:drop-shadow(0 12px 16px #00000073);transform:translate(-50%,-50%)}.overlay{z-index:50;background:#0a0c1abd;justify-content:center;align-items:center;animation:.25s ease-out fade-in;display:flex;position:fixed;inset:0}@keyframes fade-in{0%{opacity:0}to{opacity:1}}.panel{background:var(--bg-raised);text-align:center;border-radius:20px;padding:28px 40px;box-shadow:0 18px 50px #00000080}.panel h2{margin:0 0 4px;font-size:22px}.final-score{font-variant-numeric:tabular-nums;font-size:52px;font-weight:800}.final-best{color:var(--text-dim);margin-bottom:20px;font-weight:600}.btn{font:inherit;cursor:pointer;color:var(--text);border:none;border-radius:12px;padding:12px 24px}.btn.primary{color:#fff;background:linear-gradient(#5aa0ff,#3b6fe0);font-weight:700;box-shadow:0 4px #2c55b8}.btn.primary:active{transform:translateY(2px);box-shadow:0 2px #2c55b8}.btn.subtle{background:#ffffff1f;padding:8px 14px;font-weight:600}.tutorial-banner{width:var(--board-size);background:#ffffff12;border-radius:12px;align-items:center;gap:12px;padding:10px 14px;display:flex}.tutorial-banner p{flex:1;margin:0;font-size:15px}.tutorial-progress{color:var(--text-dim);white-space:nowrap;font-size:13px;font-weight:700}