:root{--bg:#080c14;--panel:#0e1420;--line:#202938;--text:#eef4ff;--muted:#778398;--green:#64f08a;--cyan:#42e8f5;--red:#ff5e6d}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:Outfit,sans-serif}
body{min-height:100vh;overflow-x:hidden;background-image:linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px);background-size:38px 38px}
button{font:inherit;color:inherit}
.ambient{position:fixed;width:500px;height:500px;border-radius:50%;filter:blur(130px);opacity:.08;pointer-events:none}.ambient-one{background:var(--green);top:-220px;left:-180px}.ambient-two{background:var(--cyan);right:-220px;bottom:-240px}
.app-shell{width:min(1100px,calc(100% - 40px));margin:auto;min-height:100vh;display:flex;flex-direction:column}
header{height:88px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);margin-bottom:36px}
.brand{color:#fff;text-decoration:none;font-size:20px;font-weight:800;letter-spacing:2px;display:flex;align-items:center;gap:13px}.brand>span:last-child span{color:var(--green)}
.brand-mark{width:28px;height:28px;display:grid;grid-template-columns:repeat(3,1fr);gap:3px;transform:rotate(-12deg)}.brand-mark i{background:var(--green);border-radius:2px;box-shadow:0 0 12px rgba(100,240,138,.5)}.brand-mark i:nth-child(2){transform:translateY(5px)}.brand-mark i:nth-child(3){transform:translateY(10px)}
.icon-button{width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#0d131e;display:grid;place-items:center;cursor:pointer}.icon-button:hover{border-color:#3a4659}.icon-button svg{width:19px;fill:none;stroke:#a9b4c5;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.sound-off{display:none}.muted .sound-on{display:none}.muted .sound-off{display:block}
.game-layout{display:grid;grid-template-columns:minmax(0,680px) 300px;gap:42px;align-items:start;justify-content:center}
.stat-bar{height:66px;background:rgba(14,20,32,.88);border:1px solid var(--line);border-bottom:0;border-radius:14px 14px 0 0;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 23px}
.stat{display:flex;flex-direction:column}.stat span,.panel-label{font:500 10px DM Mono,monospace;color:var(--muted);letter-spacing:2px}.stat strong{font:500 24px DM Mono,monospace}.align-right{text-align:right}
.status-pill{font:500 10px DM Mono,monospace;letter-spacing:1.7px;color:#a9b4c5;display:flex;align-items:center;gap:8px}.status-pill i{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green)}
.board-frame{position:relative;aspect-ratio:1;border:1px solid var(--line);border-radius:0 0 14px 14px;overflow:hidden;background:#080d15;box-shadow:0 24px 70px rgba(0,0,0,.3)}
canvas{display:block;width:100%;height:100%;background:#080d15}
.scanlines{position:absolute;inset:0;pointer-events:none;background:repeating-linear-gradient(0deg,transparent 0,transparent 3px,rgba(255,255,255,.012) 4px);z-index:2}
.overlay{position:absolute;inset:0;z-index:3;display:flex;align-items:center;justify-content:center;background:rgba(6,10,17,.76);backdrop-filter:blur(3px);opacity:0;visibility:hidden;transition:.25s}.overlay.visible{opacity:1;visibility:visible}
.overlay-card{text-align:center;padding:30px}.eyebrow{font:500 10px DM Mono,monospace;letter-spacing:3px;color:var(--cyan);margin-bottom:15px}.eyebrow.danger{color:var(--red)}
h1{font-size:clamp(48px,7vw,74px);line-height:.88;letter-spacing:-3px;margin:0 0 24px;font-weight:700}h1 em{color:var(--green);font-style:normal;text-shadow:0 0 35px rgba(100,240,138,.25)}
.overlay p{color:#8490a2;font-size:14px;line-height:1.6;margin:0 0 25px}.primary-button{min-width:220px;height:52px;padding:0 18px;border:0;border-radius:8px;background:var(--green);color:#07100a;font-weight:800;font-size:13px;letter-spacing:1.3px;cursor:pointer;box-shadow:0 0 30px rgba(100,240,138,.18);transition:.15s}.primary-button:hover{transform:translateY(-2px);filter:brightness(1.08)}kbd{font:500 11px DM Mono,monospace;border:1px solid #394457;background:#151c28;border-radius:5px;padding:5px 8px;box-shadow:0 2px 0 #06080c;color:#b9c3d1}.primary-button kbd{margin-left:15px;border-color:rgba(0,0,0,.2);background:rgba(0,0,0,.1);box-shadow:none;color:#123019}
.start-hint{font:500 10px DM Mono,monospace;color:#697488;margin-top:20px}.start-hint span{color:#9aa6b8;margin-right:8px}
.compact h2{font-size:43px;margin:10px 0 8px;text-transform:uppercase;letter-spacing:-1px}.pause-icon{display:flex;gap:7px;justify-content:center}.pause-icon span{width:7px;height:26px;background:var(--green);box-shadow:0 0 10px rgba(100,240,138,.4)}
.final-score{display:flex;flex-direction:column;margin:23px 0}.final-score span{font:10px DM Mono,monospace;letter-spacing:2px;color:var(--muted)}.final-score strong{font:500 42px DM Mono,monospace}.new-best{display:none;color:var(--green);font:500 10px DM Mono,monospace;letter-spacing:2px;margin:-13px 0 18px}.new-best.visible{display:block}
aside{display:flex;flex-direction:column;gap:16px;padding-top:66px}.panel{border:1px solid var(--line);background:rgba(14,20,32,.8);border-radius:12px;padding:20px}.panel-label{margin-bottom:16px}
.difficulty{display:grid;grid-template-columns:repeat(3,1fr);background:#080d15;padding:4px;border:1px solid #1e2734;border-radius:8px;gap:3px}.difficulty button{border:0;background:transparent;color:#657085;border-radius:5px;padding:10px 3px;font:500 9px DM Mono,monospace;cursor:pointer}.difficulty button.active{background:#1a2630;color:var(--green);box-shadow:inset 0 0 0 1px rgba(100,240,138,.18)}.difficulty-copy{font-size:12px;line-height:1.5;color:#657185;margin:15px 0 0}
.controls-panel{padding-bottom:12px}.key-row{border-top:1px solid #1b2431;min-height:55px;display:flex;align-items:center;justify-content:space-between}.key-row span{font:500 10px DM Mono,monospace;color:#687488;letter-spacing:1px}.key-row div{display:flex;align-items:center;gap:4px}.key-row small{font-size:9px;color:#566174;margin:0 3px}.key-row kbd{padding:4px 7px}
.pause-button{height:48px;border:1px solid var(--line);background:#0e1420;border-radius:10px;color:#9da8ba;font:600 11px DM Mono,monospace;letter-spacing:1px;cursor:pointer}.pause-button:disabled{opacity:.4;cursor:not-allowed}.pause-symbol{margin-right:10px;color:var(--green)}
.touch-controls{display:none;text-align:center;margin:22px 0}.touch-controls button{width:64px;height:54px;margin:3px;border:1px solid #2b3748;background:#111926;border-radius:10px;color:var(--green);font-size:22px;touch-action:manipulation}
footer{margin-top:auto;height:90px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;color:#4d5869;font:500 9px DM Mono,monospace;letter-spacing:1.3px}.footer-center{color:#6c7789}.footer-center i{display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--green);margin-right:7px;box-shadow:0 0 8px var(--green)}
@media(max-width:860px){.game-layout{grid-template-columns:minmax(0,620px)}aside{padding:0;display:grid;grid-template-columns:1fr 1fr}.pause-button{grid-column:1/-1}.touch-controls{display:block}.controls-panel{display:none}footer{margin-top:20px}}
@media(max-width:560px){.app-shell{width:min(100% - 20px,500px)}header{height:68px;margin-bottom:16px}.game-layout{gap:16px}.stat-bar{height:58px;padding:0 14px}.stat strong{font-size:20px}.status-pill{font-size:8px}.board-frame{border-radius:0 0 10px 10px}.overlay-card{padding:18px}h1{font-size:50px}.overlay p{font-size:12px}.primary-button{height:48px}.start-hint{display:none}aside{grid-template-columns:1fr}.difficulty-copy{display:none}.touch-controls{margin:12px 0}.touch-controls button{width:60px;height:49px}footer{height:60px}.footer-center{display:none}.compact h2{font-size:34px}}