@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Space+Grotesk:wght@400;500;600;700&display=swap');
:root{--bg:#080a12;--panel:#10131e;--panel2:#151927;--line:#252a3c;--muted:#838ba5;--text:#f5f6ff;--accent:#9b7bff;--accent2:#38e8d5;--danger:#ff5c91;--tile1:#8c68ff;--tile2:#39e9d7;--glow:rgba(155,123,255,.25);font-family:'Space Grotesk',sans-serif;color:var(--text);background:var(--bg);font-synthesis:none}
*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(ellipse at 15% 0%,#17152b 0,transparent 35%),radial-gradient(ellipse at 90% 45%,#101c2b 0,transparent 30%),var(--bg);overflow-x:hidden}.ambient{position:fixed;pointer-events:none;filter:blur(90px);opacity:.13;border-radius:50%;z-index:0}.ambient-one{width:260px;height:260px;background:#875bff;top:20%;left:-130px}.ambient-two{width:280px;height:280px;background:#1ad9d0;right:-170px;bottom:5%}.topbar{height:76px;padding:0 clamp(18px,4vw,64px);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(255,255,255,.06);position:relative;z-index:1}.brand{display:flex;gap:11px;align-items:center;color:var(--text);text-decoration:none;font-size:15px;font-weight:700;letter-spacing:1.6px}.brand-mark{width:36px;height:36px;border:1px solid #8e75ff;border-radius:10px;display:grid;place-items:center;color:#b4a3ff;font-size:20px;box-shadow:0 0 24px #8b6cff22}.brand-accent{color:#a996ff}.brand small{display:block;font-size:8px;color:#727b99;letter-spacing:2.5px;margin-top:3px}.top-actions{display:flex;align-items:center;gap:10px;color:#929ab1;font:10px 'DM Mono',monospace;letter-spacing:1.4px}.status-dot,.footer-dot{width:6px;height:6px;background:#3de8bd;border-radius:50%;box-shadow:0 0 10px #3de8bd;display:inline-block}.icon-btn{width:30px;height:30px;border:1px solid var(--line);border-radius:9px;background:#171a28;color:#aab2cc;cursor:pointer;font-size:18px}.icon-btn:hover{border-color:var(--accent);color:white}.app-shell{max-width:1450px;padding:0 clamp(16px,4vw,60px) 50px;margin:auto;position:relative;z-index:1}.hero{padding:40px 0 31px}.eyebrow,.step-label{font:10px 'DM Mono',monospace;letter-spacing:2px;color:#9d8bff}.eyebrow{display:flex;align-items:center;gap:10px}.eyebrow-line{width:25px;height:1px;background:var(--accent)}h1{font-size:clamp(36px,4.8vw,58px);line-height:1.04;letter-spacing:-2.6px;margin:15px 0 13px;font-weight:600}h1 span{color:#a18aff;text-shadow:0 0 36px #8e71ff55}.hero-copy{font-size:13px;line-height:1.7;color:#969db4;max-width:520px;margin:0}.dashboard{display:grid;grid-template-columns:minmax(270px,330px) minmax(0,1fr);gap:22px;align-items:start}.panel{background:linear-gradient(145deg,rgba(18,21,34,.97),rgba(13,16,27,.96));border:1px solid #272b3c;border-radius:16px;padding:22px;box-shadow:0 20px 60px #0002}.section-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:17px}.section-heading h2,.section-heading h3,.editor-head h3{margin:5px 0 0;font-size:17px;letter-spacing:-.4px}.section-heading h3{font-size:14px}.mini-icon{font-size:22px;color:#a08aff}.section-heading.compact{margin-bottom:13px}.upload-zone{min-height:136px;border:1px dashed #46425f;background:linear-gradient(135deg,#1b1930,#131725);border-radius:12px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:7px;text-align:center;cursor:pointer;transition:.2s}.upload-zone:hover{border-color:#a18aff;background:#211d3b}.upload-icon{width:30px;height:30px;display:grid;place-items:center;border:1px solid #6755a2;border-radius:9px;color:#c0b1ff;font-size:21px}.upload-zone strong{font-size:12px}.upload-zone span:not(.upload-icon){font-size:10px;color:#929ab2}.upload-zone small{font:9px 'DM Mono',monospace;color:#706c9a;letter-spacing:1px}.track-card{display:flex;align-items:center;gap:11px;padding:13px 0 0}.cover-art{width:44px;height:44px;border-radius:9px;background:linear-gradient(135deg,#43348a,#1dafa7);display:flex;align-items:center;justify-content:center;gap:2px;position:relative;overflow:hidden;color:#fff;font-size:16px;flex-shrink:0}.cover-art i{height:12px;width:2px;border-radius:3px;background:#ffffff9c;position:absolute;bottom:6px}.cover-art i:nth-of-type(1){left:8px;height:8px}.cover-art i:nth-of-type(2){left:14px;height:17px}.cover-art i:nth-of-type(3){left:20px;height:11px}.cover-art i:nth-of-type(4){left:26px;height:20px}.cover-art i:nth-of-type(5){left:32px;height:13px}.track-info{min-width:0;flex:1}.track-info strong{font-size:11px;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.track-info span{font-size:10px;color:#858da6;display:block;margin-top:4px}.track-state{font:8px 'DM Mono',monospace;letter-spacing:1px;color:#7c849c;border:1px solid #34394e;border-radius:5px;padding:5px}.track-state.loaded{color:#4ce7ca;border-color:#275f5a}.section-divider{height:1px;background:#252a3b;margin:20px 0}.difficulty-group{display:grid;grid-template-columns:repeat(4,1fr);gap:5px}.difficulty{border:1px solid #2b3044;border-radius:8px;background:#151927;color:#aab1c8;padding:9px 2px 7px;font-size:10px;cursor:pointer}.difficulty small{display:block;font-size:8px;color:#747d98;margin-top:4px}.difficulty.active{border-color:#8971e8;background:#292344;color:#d7ceff;box-shadow:inset 0 0 14px #9b7bff0b}.field-label{font-size:10px;color:#8f97b0;display:block;margin:12px 0 7px}.select-control,.control-row input[type=number],.editor-form input,.editor-form select{width:100%;border:1px solid #2e3448;border-radius:8px;background:#151927;color:#e4e7f5;padding:10px;font:11px 'DM Mono',monospace;outline:none}.select-control:focus,.control-row input:focus{border-color:#8c73f2}.control-row{display:grid;grid-template-columns:64px minmax(0,1fr) auto;align-items:center;gap:9px;margin:11px 0}.control-row label{font-size:10px;color:#aab1c7}.control-row input[type=number]{padding:8px 9px}.small-btn{border:1px solid #514477;background:#28213f;color:#c9bfff;padding:8px 10px;border-radius:7px;font-size:10px;cursor:pointer}.unit{font:10px 'DM Mono',monospace;color:#8b94ad;white-space:nowrap}.slider-row{grid-template-columns:64px minmax(0,1fr) 54px}.slider-row input{width:100%;accent-color:#a18aff}.hint{font-size:10px;color:#747d96;line-height:1.6;margin:7px 0 12px}.secondary-btn,.primary-btn{border-radius:9px;padding:11px 14px;border:1px solid #34394e;background:#1a1e2d;color:#d5daed;font:600 11px 'Space Grotesk',sans-serif;cursor:pointer;transition:transform .15s,border-color .15s,filter .15s}.secondary-btn:hover{border-color:#8971e8}.primary-btn{border-color:#a28cff;background:linear-gradient(110deg,#8b6af3,#6f67ed);color:white;box-shadow:0 7px 22px #7963e52a}.primary-btn:hover{filter:brightness(1.1);transform:translateY(-1px)}button:disabled{opacity:.38;cursor:not-allowed;transform:none!important}.full-btn{width:100%;display:block;text-align:center;margin-top:10px}.text-btn{background:transparent;border:0;color:#9690c6;font-size:10px;padding:10px;cursor:pointer}.text-btn:hover{color:#d0c5ff}.import-map-btn{border:1px solid #2c3144;border-radius:8px;padding:10px;font-size:10px;color:#9ca5bf;cursor:pointer}.game-column{min-width:0}.stats-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-bottom:14px}.stat-card{background:linear-gradient(135deg,#151927,#10131e);border:1px solid #272c3f;border-radius:12px;padding:13px 16px}.stat-card>span{font:9px 'DM Mono',monospace;letter-spacing:1.5px;color:#8c95af}.stat-card strong{display:block;font-size:clamp(20px,2.4vw,28px);letter-spacing:-1px;margin:7px 0 2px;font-variant-numeric:tabular-nums}.stat-card small{font:8px 'DM Mono',monospace;letter-spacing:1px;color:#5f6882}.stat-x,.stat-percent{font-size:13px;color:#a18aff;margin-left:3px}.arena{--lane-bg:#0e111c;--line-glow:#a28aff;position:relative;border:1px solid #30344b;border-radius:15px;overflow:hidden;background:var(--lane-bg);box-shadow:0 20px 50px #0004,inset 0 0 40px #8e73ff08;transition:background .3s}.arena.theme-midnight{--lane-bg:#0a1724;--line-glow:#55baff}.arena.theme-plum{--lane-bg:#1a1022;--line-glow:#ff7bd5}.arena.skin-ice{--tile1:#4ca9ff;--tile2:#6ef2ee}.arena.skin-gold{--tile1:#ffc45b;--tile2:#fff0a3}.arena.skin-rose{--tile1:#ff5fba;--tile2:#ff9d88}.arena-top{display:flex;justify-content:space-between;padding:14px 17px 10px;font:9px 'DM Mono',monospace;letter-spacing:1.4px;color:#8992ad}.live-label{display:flex;gap:7px;align-items:center}.live-label i{width:5px;height:5px;background:#42e8c5;box-shadow:0 0 9px #42e8c5;border-radius:50%}.mode-label{color:#a38cff}.lane-headings{display:grid;grid-template-columns:repeat(4,1fr);padding:0 10px 9px;text-align:center;color:#9da6c2;font:10px 'DM Mono',monospace}.lane-headings span{padding:7px 0;border-right:1px solid #252a3b}.lane-headings span:last-child{border:0}.game-board{height:clamp(390px,57vw,570px);max-height:570px;min-height:390px;position:relative;overflow:hidden;background:linear-gradient(180deg,#0c0f19 0%,var(--lane-bg) 100%);touch-action:manipulation}.lane-lines{position:absolute;inset:0;display:grid;grid-template-columns:repeat(4,1fr);pointer-events:none}.lane-lines i{border-right:1px solid #272c3c;background:linear-gradient(180deg,transparent,rgba(130,111,255,.025),transparent)}.lane-lines i:last-child{border:0}.tiles-layer{position:absolute;inset:0;overflow:hidden}.tile{position:absolute;top:0;width:calc(25% - 12px);height:66px;left:calc(var(--lane)*25% + 6px);border:1px solid color-mix(in srgb,var(--tile1) 75%,white 10%);border-radius:8px;background:linear-gradient(115deg,color-mix(in srgb,var(--tile1) 85%,#fff 0%),color-mix(in srgb,var(--tile2) 65%,var(--tile1)));box-shadow:0 0 15px color-mix(in srgb,var(--tile1) 36%,transparent),inset 0 1px 0 #ffffff68;cursor:pointer;transition:filter .1s;z-index:2}.tile:after{content:"";position:absolute;inset:5px;border:1px solid #ffffff27;border-radius:5px}.tile.hit{opacity:0;transform:scale(.9);transition:.12s}.tile.missed{opacity:0;transition:.15s}.tile.pressed{filter:brightness(1.6)}.hit-line{position:absolute;left:0;right:0;bottom:65px;height:2px;background:var(--line-glow);box-shadow:0 0 9px var(--line-glow),0 0 24px var(--line-glow);z-index:4;pointer-events:none}.hit-line:before{content:"";position:absolute;left:0;right:0;bottom:0;height:22px;background:linear-gradient(0deg,color-mix(in srgb,var(--line-glow) 15%,transparent),transparent)}.key-labels{position:absolute;bottom:13px;left:0;right:0;display:grid;grid-template-columns:repeat(4,1fr);text-align:center;z-index:5;pointer-events:none}.key-labels kbd{font:10px 'DM Mono',monospace;color:#77809d;border:1px solid #34394d;border-radius:5px;justify-self:center;min-width:28px;padding:5px;background:#151927}.feedback{position:absolute;z-index:8;top:48%;left:50%;transform:translate(-50%,-50%);color:#b7a9ff;font:11px 'DM Mono',monospace;letter-spacing:2px;text-align:center;pointer-events:none;text-shadow:0 0 18px #a28aff66;white-space:nowrap}.start-overlay{position:absolute;inset:0;z-index:7;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;background:linear-gradient(180deg,#0b0e19d9,#0b0e19c9);backdrop-filter:blur(3px);padding:20px}.start-overlay.hidden{display:none}.play-orb{width:55px;height:55px;border:1px solid #8c75ed;border-radius:50%;display:grid;place-items:center;padding-left:3px;background:#9c7bff1a;color:#c8baff;box-shadow:0 0 30px #967aff22;font-size:19px}.start-overlay h3{font-size:19px;margin:16px 0 6px}.start-overlay p{font-size:11px;color:#929bb5;max-width:260px;line-height:1.6;margin:0 0 18px}.start-overlay .primary-btn{min-width:160px}.primary-btn span{margin-left:10px}.arena-footer{height:37px;display:flex;align-items:center;justify-content:space-between;padding:0 15px;border-top:1px solid #252a3c;font:8px 'DM Mono',monospace;letter-spacing:1px;color:#747d98}.arena-footer b{color:#42e8c5}.footer-dot{width:5px;height:5px;margin-right:5px}.play-controls{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:13px 0}.play-button{min-width:105px;display:flex;gap:10px;align-items:center;justify-content:center}.play-controls .secondary-btn,.play-controls .text-btn{padding:11px 13px}.editor-panel{border:1px solid #2c3044;border-radius:12px;padding:16px;background:#111522;margin:14px 0}.editor-panel.hidden{display:none}.editor-head{display:flex;justify-content:space-between;align-items:center}.editor-head h3{font-size:15px}.editor-form{display:grid;grid-template-columns:1fr 1fr auto;gap:9px;align-items:end}.editor-form label{font-size:10px;color:#9ca4bc;display:flex;flex-direction:column;gap:7px}.editor-form input,.editor-form select{min-width:0}.notes-list{display:flex;flex-wrap:wrap;gap:6px;margin-top:13px;max-height:120px;overflow:auto}.note-chip{display:flex;gap:8px;align-items:center;border:1px solid #343950;border-radius:6px;background:#191d2d;padding:6px 8px;font:9px 'DM Mono',monospace;color:#bdc5dd}.note-chip button{border:0;background:transparent;color:#ff7ba5;cursor:pointer;font-size:13px}.bottom-note{font-size:10px;color:#7d86a0;margin-top:16px}.bottom-note span{color:#b49dff;margin-right:6px}.toast{position:fixed;bottom:22px;left:50%;transform:translate(-50%,20px);opacity:0;pointer-events:none;background:#25213b;border:1px solid #6453a2;color:#e4ddff;border-radius:9px;padding:11px 16px;font-size:11px;z-index:20;transition:.25s;max-width:90vw;text-align:center}.toast.show{opacity:1;transform:translate(-50%,0)}.modal{position:fixed;inset:0;z-index:30;background:#05060bd9;display:grid;place-items:center;padding:20px}.modal.hidden{display:none}.modal-card{position:relative;width:min(430px,100%);background:#141827;border:1px solid #343951;border-radius:16px;padding:28px;box-shadow:0 30px 100px #0009}.modal-card h2{font-size:25px;margin:9px 0 18px}.modal-card p{font-size:12px;line-height:1.7;color:#a9b1c8}.modal-close{position:absolute;right:15px;top:15px;font-size:20px}.modal-card .hint{border-top:1px solid #2b3042;padding-top:12px;margin-top:15px}
@media(min-width:1200px){.hero{padding-top:46px}.dashboard{gap:25px}.panel{padding:24px}.game-board{height:550px}}@media(max-width:900px){.dashboard{grid-template-columns:1fr}.sidebar{order:2}.game-column{order:1}.hero{padding-top:30px}.game-board{height:520px}}@media(max-width:540px){.topbar{height:64px}.status-text{display:none}.app-shell{padding-inline:12px}.hero{padding:27px 3px 23px}h1{font-size:39px;letter-spacing:-1.8px}.hero-copy{font-size:12px}.stats-grid{gap:6px}.stat-card{padding:10px 9px}.stat-card>span{font-size:8px;letter-spacing:1px}.stat-card strong{font-size:22px}.arena-top{padding:12px}.game-board{height:460px;min-height:390px}.tile{height:59px;width:calc(25% - 8px);left:calc(var(--lane)*25% + 4px)}.hit-line{bottom:61px}.key-labels{bottom:10px}.arena-footer{padding:0 8px;font-size:7px;letter-spacing:.4px}.panel{padding:17px}.editor-form{grid-template-columns:1fr 1fr}.editor-form button{grid-column:1/-1}.play-controls{gap:6px}.play-controls button{font-size:10px;padding:10px}.feedback{font-size:9px;letter-spacing:1px}.start-overlay h3{font-size:17px}}