:root{--ink:#f6f4ed;--muted:#8991a8;--panel:#171c2a;--panel-light:#202638;--line:#ffffff1a;--navy:#0c101b;--mint:#51e4b7;--yellow:#f7cf5e;--coral:#ff6b69;--blue:#5d8cff;--purple:#a87bf7}*{box-sizing:border-box}html{background:var(--navy);--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}body{min-height:100dvh;color:var(--ink);background:radial-gradient(circle at 50% 42%, #404b6f38, transparent 38%), linear-gradient(135deg, #ffffff05 25%, transparent 25%) 0 0 / 18px 18px, var(--navy);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,a{font:inherit}button{color:inherit}.app-shell{flex-direction:column;min-height:100dvh;display:flex;overflow:hidden}.topbar{border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#0a0e18b3;flex:none;justify-content:space-between;align-items:center;height:72px;padding:0 clamp(20px,4vw,64px);display:flex}.brand{color:var(--ink);letter-spacing:.2em;align-items:center;gap:13px;font-size:18px;font-weight:900;text-decoration:none;display:flex}.brand-mark{grid-template-rows:repeat(2,1fr);grid-template-columns:repeat(3,1fr);gap:2px;width:24px;height:24px;display:grid;transform:rotate(-4deg)}.brand-mark i{background:var(--mint);border-radius:2px;display:block}.brand-mark i:first-child{grid-column:2}.brand-mark i:nth-child(2){grid-column:1}.brand-mark i:nth-child(3){grid-column:2}.brand-mark i:nth-child(4){grid-column:3}.top-actions{align-items:center;gap:18px;display:flex}.status-dot{letter-spacing:.18em;color:var(--muted);align-items:center;gap:8px;font-size:10px;font-weight:800;display:flex}.status-dot i{background:var(--yellow);width:7px;height:7px;box-shadow:0 0 12px var(--yellow);border-radius:50%}.status-dot.playing i{background:var(--mint);box-shadow:0 0 12px var(--mint)}.status-dot.gameover i{background:var(--coral);box-shadow:0 0 12px var(--coral)}.icon-button{border:1px solid var(--line);background:var(--panel);cursor:pointer;border-radius:9px;width:38px;height:38px;font-weight:800;transition:background .15s,transform .15s}.icon-button:hover{background:var(--panel-light)}.icon-button:active{transform:scale(.94)}.game-layout{flex:1;grid-template-columns:230px auto 230px;justify-content:center;align-items:center;gap:clamp(40px,6vw,100px);min-height:0;padding:25px 30px;display:grid}.side-panel{align-self:center;width:230px}.eyebrow{color:var(--muted);letter-spacing:.24em;margin:0 0 10px;font-size:10px;font-weight:800}.score{letter-spacing:.05em;font-variant-numeric:tabular-nums;font-family:SFMono-Regular,Consolas,monospace;font-size:35px;line-height:1.1;display:block}.rule{background:var(--line);height:1px;margin:26px 0}.stat-row{color:var(--muted);letter-spacing:.14em;justify-content:space-between;align-items:center;margin:15px 0;font-size:11px;font-weight:700;display:flex}.stat-row b{color:var(--ink);font-family:monospace;font-size:17px}.tip-card{border:1px solid #51e4b733;border-left:3px solid var(--mint);background:#51e4b70b;margin-top:32px;padding:16px 17px}.tip-card span{color:var(--mint);letter-spacing:.2em;font-size:9px;font-weight:900}.tip-card p{color:#aeb4c5;margin:7px 0 0;font-size:11px;line-height:1.55}.play-column{flex-direction:column;align-items:center;min-width:0;display:flex}.board-wrap{background:#272d3e;border:1px solid #ffffff29;border-radius:5px;padding:8px;position:relative;box-shadow:0 28px 60px #00000061,inset 0 0 0 1px #000c}.board{aspect-ratio:1/2;grid-template-columns:repeat(var(--cols), 1fr);grid-template-rows:repeat(var(--rows), 1fr);background:#0e1320;border:1px solid #000000b3;gap:1px;width:min(40vh,335px);display:grid;box-shadow:inset 0 0 32px #00000061}.cell{background:#ffffff06;border:1px solid #ffffff04;min-width:0}.block{border:1px solid #ffffff59;border-radius:2px;position:relative;box-shadow:inset 3px 3px #ffffff24,inset -3px -3px #0000002e}.block:after{content:"";border:1px solid #ffffff1c;position:absolute;inset:4px}.c1{background:#49d9e8}.c2{background:var(--blue)}.c3{background:#ff9b55}.c4{background:var(--yellow)}.c5{background:var(--mint)}.c6{background:var(--purple)}.c7{background:var(--coral)}.block.ghost{box-shadow:none;opacity:.32;background:0 0;border:1px dashed}.ghost.c1{color:#49d9e8}.ghost.c2{color:var(--blue)}.ghost.c3{color:#ff9b55}.ghost.c4{color:var(--yellow)}.ghost.c5{color:var(--mint)}.ghost.c6{color:var(--purple)}.ghost.c7{color:var(--coral)}.ghost:after{display:none}.game-overlay{-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);text-align:center;z-index:3;background:#090d17e0;flex-direction:column;justify-content:center;align-items:center;animation:.2s ease-out fadeIn;display:flex;position:absolute;inset:8px}@keyframes fadeIn{0%{opacity:0;transform:scale(.98)}}.overlay-label{letter-spacing:.25em;color:var(--mint);font-size:9px;font-weight:900}.game-overlay h1{letter-spacing:-.04em;margin:8px 0 3px;font-size:clamp(28px,4vw,42px)}.game-overlay p{color:var(--muted);margin:0 0 22px;font-size:12px}.game-overlay button{background:var(--mint);color:#071812;text-transform:uppercase;letter-spacing:.14em;cursor:pointer;border:0;border-radius:5px;margin-top:18px;padding:12px 25px;font-size:11px;font-weight:900;box-shadow:0 8px 28px #51e4b72e}.preview-box{border:1px solid var(--line);background:#ffffff06;place-items:center;height:92px;display:grid}.preview-grid{grid-template-columns:repeat(var(--preview-cols), 22px);grid-auto-rows:22px;gap:2px;display:grid}.mini{display:block}.mini.block{width:22px;height:22px}.controls-title{margin-top:0}.key-guide{flex-direction:column;gap:9px;display:flex}.key-guide div{align-items:center;gap:6px;min-height:25px;display:flex}kbd{color:#ced3df;background:#202637;border:1px solid #3c4356;border-bottom-width:2px;border-radius:4px;place-items:center;min-width:26px;height:25px;padding:0 7px;font:700 10px monospace;display:grid}.key-guide span{color:var(--muted);margin-left:auto;font-size:10px}.restart-link{color:var(--muted);letter-spacing:.1em;text-transform:uppercase;cursor:pointer;background:0 0;border:0;margin-top:29px;padding:0;font-size:10px}.restart-link:hover{color:var(--mint)}.mobile-stats,.mobile-controls{display:none}footer{border-top:1px solid var(--line);color:#636b80;letter-spacing:.15em;flex:none;justify-content:center;align-items:center;gap:15px;height:42px;font-size:8px;font-weight:800;display:flex}footer i{background:#3b4254;border-radius:50%;width:3px;height:3px}button:focus-visible,a:focus-visible{outline:2px solid var(--mint);outline-offset:3px}@media (max-width:850px){.app-shell{overflow:auto}.topbar{height:56px;padding:0 17px}.brand{font-size:15px}.brand-mark{width:20px;height:20px}.game-layout{flex:none;padding:10px 8px 6px;display:block}.side-panel,footer{display:none}.mobile-stats{border:1px solid var(--line);background:#171c2ad1;grid-template-columns:1.5fr 1fr 1fr;align-items:center;width:min(78vw,330px);height:44px;margin-bottom:7px;display:grid}.mobile-stats div{border-right:1px solid var(--line);flex-direction:column;padding:0 11px;display:flex}.mobile-stats div:last-child{border:0}.mobile-stats span{color:var(--muted);letter-spacing:.16em;font-size:7px;font-weight:800}.mobile-stats b{font:700 13px/1.3 monospace}.board-wrap{padding:5px}.board{width:min(78vw,50dvh - 126px,330px);min-width:190px}.game-overlay{inset:5px}.mobile-controls{grid-template-columns:repeat(5,1fr);gap:7px;width:min(94vw,440px);margin:9px auto 10px;padding:0;display:grid}.mobile-controls button{touch-action:manipulation;-webkit-user-select:none;user-select:none;cursor:pointer;background:#1b2131;border:1px solid #363d50;border-bottom-width:3px;border-radius:7px;flex-direction:column;justify-content:center;align-items:center;gap:3px;height:58px;font-size:21px;font-weight:800;display:flex}.mobile-controls button:active{background:#252c3f;border-bottom-width:1px;transform:translateY(2px)}.mobile-controls small{color:var(--muted);letter-spacing:.12em;font-size:6px;font-weight:900}.mobile-controls .drop-control{color:#0b1c17;background:var(--mint);border-color:#5af7c6}.mobile-controls .drop-control small{color:#174b3d}}@media (max-width:850px) and (max-height:620px){.topbar{height:48px}.mobile-stats{height:36px}.board{width:min(70vw,50dvh - 104px);min-width:170px}.mobile-controls button{height:48px}}@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}