:root{color-scheme:dark;--bg: #0f1116;--panel: #171a21;--panel-2: #1f2430;--text: #e8ecf1;--muted: #8b93a1;--accent: #22d3ee;--accent-ink: #06121a;--ok: #34d399;--bad: #f87171;--warn: #facc15;--border: #2a3140;--radius: 12px;--touch: 44px;--font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace}*,*:before,*:after{box-sizing:border-box}html,body{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:16px;line-height:1.4;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;overscroll-behavior-y:none}#app{min-height:100%;display:flex;flex-direction:column}h1,h2,h3,h4{margin:0;font-weight:650;line-height:1.2}h1{font-size:26px}h2{font-size:20px}h3{font-size:16px}p{margin:0}a{color:var(--accent)}pre,code,kbd{font-family:var(--mono)}button,input,select,textarea{font:inherit;color:inherit}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}::selection{background:#22d3ee59}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4em;min-height:var(--touch);padding:0 16px;border-radius:10px;border:1px solid var(--border);background:var(--panel-2);color:var(--text);font-weight:600;text-decoration:none;cursor:pointer;user-select:none;white-space:nowrap;transition:background-color .15s,border-color .15s,filter .15s,transform .05s}.btn:hover{border-color:var(--muted)}.btn:active{transform:translateY(1px)}.btn:disabled,.btn[aria-disabled=true]{opacity:.45;cursor:not-allowed;transform:none;pointer-events:none}.btn-primary{background:var(--accent);color:var(--accent-ink);border-color:transparent;font-weight:700}.btn-primary:hover{filter:brightness(1.08);border-color:transparent}.btn-danger{color:var(--bad);border-color:#f8717159}.btn-danger:hover{background:#f871711f;border-color:var(--bad)}.btn-ghost{background:transparent}.btn-sm{min-height:36px;padding:0 12px;font-size:14px}.btn-lg{min-height:56px;padding:0 24px;font-size:18px}.btn.active,.btn[aria-pressed=true]{background:#22d3ee24;border-color:var(--accent);color:var(--accent)}.row{display:flex;flex-direction:row;align-items:center;gap:8px;flex-wrap:wrap}.col{display:flex;flex-direction:column;gap:8px}.grow{flex:1 1 auto;min-width:0}.spacer{flex:1 1 auto}.muted{color:var(--muted)}.small{font-size:14px}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px}.card-title{font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}.hud{display:inline-flex;align-items:center;gap:8px;padding:6px 10px;border-radius:10px;background:var(--panel);border:1px solid var(--border);font-variant-numeric:tabular-nums;white-space:nowrap}.badge{display:inline-flex;align-items:center;gap:.3em;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.03em;text-transform:uppercase;background:#8b93a12e;color:var(--muted);white-space:nowrap}.badge-accent{background:#22d3ee29;color:var(--accent)}.badge-ok{background:#34d39929;color:var(--ok)}.badge-warn{background:#facc1529;color:var(--warn)}.badge-bad{background:#f8717129;color:var(--bad)}.text-ok{color:var(--ok)}.text-bad{color:var(--bad)}.text-warn{color:var(--warn)}.screen{flex:1 1 auto;display:flex;flex-direction:column;gap:16px;width:100%;max-width:1200px;margin:0 auto;padding:16px}.screen-header{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.brand{font-size:24px;font-weight:800;letter-spacing:-.01em;background:linear-gradient(90deg,var(--accent),var(--ok));-webkit-background-clip:text;background-clip:text;color:transparent;text-decoration:none}.brand-tagline{color:var(--muted);font-size:14px}.empty{padding:24px 16px;text-align:center;color:var(--muted);border:1px dashed var(--border);border-radius:var(--radius)}input[type=text],input[type=number],input[type=search],select,textarea{background:var(--panel-2);border:1px solid var(--border);border-radius:10px;padding:10px 12px;min-height:var(--touch);color:var(--text);outline:none;width:100%}input[type=text]:focus,input[type=number]:focus,select:focus,textarea:focus{border-color:var(--accent)}select{cursor:pointer}input[type=range]{accent-color:var(--accent);width:100%;min-height:var(--touch);cursor:pointer}input[type=checkbox]{accent-color:var(--accent);width:22px;height:22px;cursor:pointer}label{cursor:pointer}details>summary{cursor:pointer;min-height:var(--touch);display:flex;align-items:center;font-weight:600;list-style:none}details>summary::-webkit-details-marker{display:none}details>summary:before{content:"▸";display:inline-block;width:1.2em;color:var(--muted);transition:transform .15s}details[open]>summary:before{transform:rotate(90deg)}.progress{position:relative;height:8px;border-radius:999px;background:var(--panel-2);border:1px solid var(--border);overflow:hidden}.progress>.progress-fill{position:absolute;inset:0 auto 0 0;width:0%;background:linear-gradient(90deg,var(--accent),var(--ok))}@media(max-width:600px){.screen{padding:12px;gap:12px}h1{font-size:22px}}@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}.library [hidden]{display:none!important}.library .lib-toolbar{display:flex;gap:10px;flex-wrap:wrap}.library .lib-import{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;font-size:14px;font-variant-numeric:tabular-nums}.library .lib-import.is-error{border-color:#f8717180;color:var(--bad)}.library .lib-import-text{overflow-wrap:anywhere}.library .lib-import-progress{width:180px;flex:0 0 auto}.library .lib-import-progress>.progress-fill{transition:width .15s}.library .lib-section{display:flex;flex-direction:column;gap:10px}.library .lib-section-title{display:flex;align-items:baseline;gap:10px}.library .lib-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:12px}.library .song-card{display:flex;flex-direction:column;gap:10px;transition:border-color .2s,box-shadow .2s}.library .song-card.is-new{border-color:var(--accent);box-shadow:0 0 0 3px #22d3ee2e}.library .song-head{display:flex;align-items:flex-start;gap:8px}.library .song-head .badge{margin-top:3px;text-transform:none}.library .song-title{font-size:18px;font-weight:700;overflow-wrap:anywhere}.library .song-artist{color:var(--muted);font-size:14px}.library .song-meta{display:flex;flex-wrap:wrap;gap:6px 14px;color:var(--muted);font-size:14px;font-variant-numeric:tabular-nums}.library .song-meta b{color:var(--text);font-weight:600}.library .song-chords{display:flex;flex-wrap:wrap;gap:6px}.library .chip{display:inline-flex;align-items:center;padding:2px 8px;border-radius:8px;background:var(--panel-2);border:1px solid var(--border);font-family:var(--mono);font-size:13px}.library .song-actions{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:auto}.library .song-actions .btn{padding:0 8px;min-width:0}@media(max-width:380px){.library .song-actions{grid-template-columns:repeat(2,minmax(0,1fr))}}.editor{min-height:100vh}.editor .editor-title{font-size:20px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.editor .save-status{font-size:14px;color:var(--muted);min-width:6em;transition:color .2s}.editor .save-status.is-dirty{color:var(--warn)}.editor .save-status.is-flash{color:var(--ok);font-weight:700}.editor .editor-body{flex:1 1 auto;display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:16px;min-height:0}.editor .editor-main{display:flex;flex-direction:column;gap:8px;min-width:0}.editor .editor-source{flex:1 1 auto;width:100%;min-height:60vh;font-family:var(--mono);font-size:15px;line-height:1.55;white-space:pre;overflow:auto;resize:vertical;tab-size:4;-webkit-text-size-adjust:100%}.editor .editor-hint{display:flex;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--muted)}.editor .editor-panel{display:flex;flex-direction:column;gap:12px;min-width:0}.editor .stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 12px}.editor .stat{display:flex;flex-direction:column}.editor .stat-label{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}.editor .stat-value{font-size:18px;font-weight:700;font-variant-numeric:tabular-nums}.editor .issues{display:flex;flex-direction:column;gap:6px;max-height:260px;overflow:auto}.editor .issue{display:grid;grid-template-columns:auto 1fr;gap:10px;align-items:start;width:100%;min-height:var(--touch);padding:8px 10px;border-radius:10px;border:1px solid var(--border);background:var(--panel-2);text-align:left;cursor:pointer}.editor .issue:hover{border-color:var(--muted)}.editor .issue-line{font-family:var(--mono);font-size:13px;font-weight:700;padding:1px 6px;border-radius:6px;white-space:nowrap}.editor .issue.error .issue-line{background:#f871712e;color:var(--bad)}.editor .issue.warning .issue-line{background:#facc152e;color:var(--warn)}.editor .issue-msg{font-size:14px;overflow-wrap:anywhere}.editor .issues-empty{color:var(--ok);font-size:14px}.editor .chord-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(96px,1fr));gap:8px}.editor .chord-chip{display:flex;flex-direction:column;align-items:center;gap:4px;padding:6px 4px;border-radius:10px;border:1px solid var(--border);background:var(--panel-2)}.editor .chord-chip.is-missing{border-color:#facc1580}.editor .chord-chip canvas{display:block}.editor .chord-chip-note{font-size:11px;color:var(--warn)}.editor .format-help{font-size:14px}.editor .format-help pre{margin:8px 0;padding:10px 12px;border-radius:10px;background:var(--panel-2);border:1px solid var(--border);overflow:auto;font-size:13px;line-height:1.5}.editor .format-help dl{display:grid;grid-template-columns:auto 1fr;gap:6px 12px;margin:8px 0 0}.editor .format-help dt{font-family:var(--mono);font-weight:700;color:var(--accent);white-space:nowrap}.editor .format-help dd{margin:0;color:var(--text)}.editor [hidden]{display:none!important}.editor .audio-panel{display:flex;flex-direction:column;gap:10px}.editor .audio-empty{display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px}.editor .audio-track{display:flex;flex-direction:column;gap:10px}.editor .audio-info{display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px}.editor .audio-icon{color:var(--accent);font-size:18px}.editor .audio-name{font-weight:600;max-width:40ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.editor .audio-wave{position:relative;width:100%;border-radius:10px;border:1px solid var(--border);overflow:hidden;background:#12151c}.editor .audio-wave-canvas{display:block;width:100%;height:150px}.editor .audio-wave-hint{font-size:12px}.editor .audio-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px}.editor .audio-btn-group{display:inline-flex;gap:4px}.editor .audio-offset-label,.editor .audio-volume-label{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--muted)}.editor .audio-offset-input{width:7.5em;min-height:36px;padding:6px 10px;font-variant-numeric:tabular-nums}.editor .audio-volume{width:140px;min-height:36px}.editor .audio-volume-value{min-width:3.5em;font-variant-numeric:tabular-nums}.editor .audio-detect-result{font-size:14px;font-variant-numeric:tabular-nums}.editor .audio-meter-select{width:auto;min-width:5.5em;padding:6px 10px}.editor .audio-check-label{display:inline-flex;align-items:center;gap:8px;min-height:var(--touch);font-size:14px;color:var(--muted)}.editor .audio-progress{width:140px;flex:0 0 auto}.editor .audio-progress>.progress-fill{transition:width .15s}.editor .audio-chord-summary{font-weight:600;overflow-wrap:anywhere}.editor .audio-chord-result{padding:10px 12px;border-radius:10px;border:1px solid var(--border);background:var(--panel-2)}.editor .audio-status{font-size:14px;color:var(--muted)}.editor .audio-status.is-error{color:var(--bad)}.editor .audio-warn{padding:8px 12px;border-radius:10px;border:1px solid rgba(250,204,21,.4);background:#facc151a;color:var(--warn);font-size:13px}@media(max-width:900px){.editor .editor-body{grid-template-columns:minmax(0,1fr)}.editor .editor-source{min-height:45vh}.editor .audio-wave-canvas{height:120px}}.editor .simplify-options{display:flex;flex-wrap:wrap;gap:8px 14px;margin:8px 0}.editor .simplify-options label{display:inline-flex;align-items:center;gap:6px;font-size:14px;min-height:32px}.editor .simplify-max select{margin-left:6px}.editor .simplify-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}.editor .simplify-preview{margin-top:10px;border-top:1px solid var(--border);padding-top:8px}.editor .simplify-line{margin:4px 0}.editor .simplify-table{width:100%;border-collapse:collapse;font-size:14px;margin:6px 0}.editor .simplify-table th,.editor .simplify-table td{text-align:left;padding:4px 6px;border-bottom:1px solid var(--border)}.editor .chord-chip-badge{display:inline-block;font-size:11px;line-height:1.4;padding:1px 7px;border-radius:999px;border:1px solid transparent;white-space:nowrap}.editor .chord-chip-badge.lvl-1{color:var(--ok);border-color:var(--ok)}.editor .chord-chip-badge.lvl-2{color:var(--warn);border-color:var(--warn)}.editor .chord-chip-badge.lvl-3{color:var(--bad);border-color:var(--bad)}.editor .chord-chip-rec{background:none;border:1px solid var(--accent);color:var(--accent);border-radius:6px;padding:2px 8px;font-size:13px;font-weight:600;cursor:pointer;min-height:28px}.editor .chord-chip-rec:hover{background:#22d3ee1f}.editor .strum-input{width:11ch;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.08em;margin-left:6px}.editor .strum-detect-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;margin-top:10px}.editor .strum-detect-status.is-error{color:var(--bad)}.editor .strum-note{margin:6px 0 0}.editor .audio-chord-strum{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.04em}.editor .strum-record-box{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;margin-top:10px}.editor .strum-tap-btn{flex:1 1 auto;min-height:72px;font-size:24px;font-weight:700;letter-spacing:.02em;touch-action:manipulation;user-select:none;-webkit-user-select:none}.editor .strum-tap-btn:active{transform:scale(.97)}.editor .strum-record-status.is-error{color:var(--bad)}.practice{position:fixed;inset:0;display:flex;flex-direction:column;background:var(--bg, #0f1116);color:var(--text, #e5e7eb);overflow:hidden;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.practice [hidden]{display:none!important}.practice .btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:0 16px;border:1px solid var(--border, #262b36);border-radius:10px;background:var(--panel, #161a22);color:var(--text, #e5e7eb);font:inherit;font-size:14px;font-weight:600;text-decoration:none;cursor:pointer;white-space:nowrap}.practice .btn:hover{border-color:var(--accent, #22d3ee)}.practice .btn:disabled{opacity:.45;cursor:default;border-color:var(--border, #262b36)}.practice .btn-primary{background:var(--accent, #22d3ee);border-color:var(--accent, #22d3ee);color:#0b1220}.practice-btn-small{min-height:36px!important;padding:0 10px!important;font-size:13px!important}.practice-play{flex:1 1 auto;min-height:0;display:flex;flex-direction:column;overflow-y:auto}.practice-header{flex:0 0 auto;display:flex;flex-wrap:wrap;align-items:center;gap:2px 12px;padding:6px 12px;background:var(--panel, #161a22);border-bottom:1px solid var(--border, #262b36);user-select:none;-webkit-user-select:none}.practice-title{font-weight:700;font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:48vw}.practice-title small{margin-left:6px;font-size:12px;font-weight:400;color:var(--muted, #94a3b8)}.practice-tempo{font-size:13px;color:var(--muted, #94a3b8);white-space:nowrap;font-variant-numeric:tabular-nums}.practice-field{display:inline-flex;align-items:center;gap:6px;min-height:44px;font-size:13px;color:var(--muted, #94a3b8)}.practice-select{min-height:40px;padding:0 8px;border:1px solid var(--border, #262b36);border-radius:8px;background:var(--bg, #0f1116);color:var(--text, #e5e7eb);font:inherit;font-size:14px}.practice-toggle{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 6px;border-radius:8px;font-size:14px;cursor:pointer}.practice-toggle input{width:22px;height:22px;margin:0;accent-color:var(--accent, #22d3ee);cursor:pointer}.practice-mic{display:inline-flex;flex-wrap:wrap;align-items:center;gap:6px 10px;min-height:44px}.practice-mic-label,.practice-mic-status{font-size:13px;color:var(--muted, #94a3b8)}.practice-mic-status.is-error{color:var(--warn, #f59e0b)}.practice-level{position:relative;width:120px;height:12px;border-radius:6px;background:#ffffff14}.practice-level-fill{position:absolute;left:0;top:0;bottom:0;width:0;border-radius:6px;background:var(--accent, #22d3ee);transition:width 50ms linear}.practice-level-fill.below{background:var(--muted, #94a3b8)}.practice-level-gate{position:absolute;top:-3px;bottom:-3px;left:0;width:2px;margin-left:-1px;background:var(--warn, #f59e0b)}.practice-chord-live{width:6ch;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;font-size:26px;font-weight:700;line-height:1;text-align:center;color:var(--accent, #22d3ee)}.practice-badge{display:inline-block;padding:3px 8px;border:1px solid rgba(245,158,11,.4);border-radius:999px;background:#f59e0b26;color:var(--warn, #f59e0b);font-size:12px;font-weight:600}.practice-hint{flex-basis:100%;font-size:12px;color:var(--muted, #94a3b8)}.practice-backing{display:inline-flex;align-items:center;gap:6px;min-height:44px}.practice-volume{width:90px;min-height:36px;margin:0;accent-color:var(--accent, #22d3ee);cursor:pointer}.practice-backing-status{font-size:12px;color:var(--muted, #94a3b8);white-space:nowrap}.practice-backing-status.is-error{color:var(--warn, #f59e0b)}.practice-headphones,.practice-agc{flex-basis:100%;font-size:12px;color:var(--warn, #f59e0b)}.practice-banner{flex:0 0 auto;display:flex;align-items:center;gap:10px;padding:8px 12px;background:#22d3ee1a;border-bottom:1px solid var(--border, #262b36);font-size:13px}.practice-banner span{flex:1 1 auto}.practice-main{flex:1 1 auto;min-height:0;display:flex;flex-direction:column}.practice-diagrams{flex:0 0 auto;display:flex;justify-content:center;align-items:stretch;gap:20px;height:clamp(120px,22vh,210px);padding:6px 12px}.practice-diagram{display:flex;flex-direction:column;align-items:center;height:100%}.practice-diagram canvas{display:block}.practice-diagram.current canvas{width:150px;height:100%}.practice-diagram.next{justify-content:flex-end}.practice-diagram.next canvas{width:96px;height:calc(70% - 16px)}.practice-diagram-label{font-size:12px;line-height:16px;color:var(--muted, #94a3b8)}.practice-right{flex:1 1 auto;min-height:0;display:flex;flex-direction:column}.practice-stage{position:relative;flex:1 1 auto;min-height:160px;background:#0f1116}.practice-canvas{display:block;width:100%;height:100%;touch-action:manipulation;cursor:pointer}.practice-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:#0f1116b8}.practice-start{min-height:64px!important;padding:0 44px!important;border-radius:999px!important;font-size:22px!important;font-weight:700!important}.practice-overlay-hint{font-size:12px;color:var(--muted, #94a3b8)}.practice-overlay-msg{max-width:90%;font-size:13px;text-align:center;color:var(--warn, #f59e0b)}.practice-paused-label{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;pointer-events:none;background:#0f111659;color:#fff;font-size:30px;font-weight:700;text-shadow:0 2px 8px rgba(0,0,0,.8)}.practice-paused-label small{font-size:13px;font-weight:400;color:var(--muted, #cbd5e1)}.practice-lyrics{flex:0 0 auto;min-height:48px;padding:6px 12px;text-align:center}.practice-lyrics-current{min-height:22px;font-size:16px;font-weight:600}.practice-lyrics-next{min-height:18px;font-size:13px;color:var(--muted, #94a3b8)}.practice-footer{flex:0 0 auto;display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px;padding:8px 12px;background:var(--panel, #161a22);border-top:1px solid var(--border, #262b36);user-select:none;-webkit-user-select:none}.practice-stat{font-size:13px;color:var(--muted, #94a3b8);white-space:nowrap;font-variant-numeric:tabular-nums}.practice-stat b{margin-left:4px;font-size:18px;color:var(--text, #e5e7eb)}.practice-progress{flex:1 1 100px;min-width:80px;height:8px;border-radius:4px;background:#ffffff14;overflow:hidden}.practice-progress-fill{height:100%;width:0;background:var(--accent, #22d3ee)}.practice-footer-buttons{display:flex;gap:8px;margin-left:auto}.practice-summary{flex:1 1 auto;min-height:0;width:100%;max-width:720px;margin:0 auto;padding:20px 16px 32px;box-sizing:border-box;overflow-y:auto}.practice-summary h2{margin:0 0 4px;font-size:24px}.practice-summary-sub{margin-bottom:16px;font-size:14px;color:var(--muted, #94a3b8)}.practice-summary-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px;margin-bottom:16px}.practice-summary-stat{padding:12px 14px;border:1px solid var(--border, #262b36);border-radius:12px;background:var(--panel, #161a22)}.practice-summary-stat.accuracy{grid-column:1 / -1}.practice-summary-label{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted, #94a3b8)}.practice-summary-value{font-size:30px;font-weight:700;font-variant-numeric:tabular-nums}.practice-summary-value.small{font-size:16px;font-weight:600;color:var(--warn, #f59e0b)}.practice-summary-detail{font-size:13px;color:var(--muted, #94a3b8)}.practice-table{width:100%;margin-bottom:16px;border-collapse:collapse;font-variant-numeric:tabular-nums}.practice-table th,.practice-table td{padding:8px 10px;border-bottom:1px solid var(--border, #262b36);text-align:right}.practice-table th:first-child,.practice-table td:first-child{text-align:left;font-weight:700}.practice-table th{font-size:12px;font-weight:600;color:var(--muted, #94a3b8);text-transform:uppercase;letter-spacing:.04em}.practice-hintbox{margin-bottom:16px;padding:12px 14px;border:1px solid rgba(245,158,11,.4);border-radius:12px;background:#f59e0b1a}.practice-hintbox p{margin:0 0 10px;font-size:14px}.practice-hintbox-actions,.practice-summary-actions{display:flex;flex-wrap:wrap;gap:10px}.practice-summary-actions{margin-top:8px}@media(orientation:landscape)and (max-height:500px){.practice-header{flex-wrap:nowrap;gap:8px;padding:2px 8px;overflow-x:auto}.practice-header>*{flex-shrink:0}.practice-hint,.practice-headphones,.practice-agc{display:none}.practice-title{max-width:22vw;font-size:14px}.practice-backing{min-height:36px}.practice-volume{width:64px}.practice-title small{display:none}.practice-field,.practice-toggle,.practice-mic{min-height:36px;font-size:13px}.practice-select{min-height:32px;font-size:13px}.practice-chord-live{font-size:24px}.practice-level{width:90px}.practice-banner{padding:2px 8px;font-size:12px}.practice-main{flex-direction:row}.practice-diagrams{flex:0 0 30%;flex-direction:column;align-items:stretch;height:auto;min-height:0;gap:4px;padding:4px 8px}.practice-diagram{position:relative;height:auto;min-height:0}.practice-diagram.current{flex:1 1 0}.practice-diagram.current canvas{position:absolute;inset:0;width:100%;height:100%}.practice-diagram.next{flex:0 0 38%;justify-content:flex-start}.practice-diagram.next canvas{position:absolute;top:16px;bottom:0;left:15%;width:70%;height:calc(100% - 16px)}.practice-right{flex:1 1 auto;min-width:0}.practice-stage{min-height:0}.practice-lyrics{min-height:0;padding:2px 8px}.practice-lyrics-current{min-height:0;font-size:14px}.practice-lyrics-next{min-height:0;font-size:12px}.practice-footer{flex-wrap:nowrap;gap:8px;padding:2px 8px;overflow-x:auto}.practice-footer>*{flex-shrink:0}.practice-progress{flex:1 1 60px;min-width:40px}.practice-footer .btn{min-height:36px;padding:0 12px;font-size:13px}.practice-paused-label{font-size:22px}}@media(max-width:480px)and (orientation:portrait){.practice-title{max-width:100%;flex-basis:100%}.practice-diagrams{height:clamp(100px,16vh,150px)}.practice-diagram.current canvas{width:120px}.practice-diagram.next canvas{width:80px}.practice-header{padding:4px 10px;gap:2px 10px}.practice-mic{min-height:32px;gap:4px 8px}.practice-mic-label,.practice-mic-status{font-size:12px}.practice-level{width:90px;height:10px}.practice-field,.practice-toggle{min-height:32px;font-size:13px}.practice-select{min-height:30px;font-size:13px}.practice-chord-live{font-size:20px}.practice-banner{padding:4px 10px;gap:6px;font-size:12px}.practice-hint{display:none}}.settings{width:100%;max-width:720px;margin:0 auto;padding:16px 16px 40px;box-sizing:border-box;color:var(--text, #e5e7eb)}.settings [hidden]{display:none!important}.settings .btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:0 16px;border:1px solid var(--border, #262b36);border-radius:10px;background:var(--panel, #161a22);color:var(--text, #e5e7eb);font:inherit;font-size:14px;font-weight:600;text-decoration:none;cursor:pointer;white-space:nowrap}.settings .btn:hover{border-color:var(--accent, #22d3ee)}.settings .btn:disabled{opacity:.45;cursor:default;border-color:var(--border, #262b36)}.settings .btn-primary{background:var(--accent, #22d3ee);border-color:var(--accent, #22d3ee);color:#0b1220}.settings-header{display:flex;align-items:center;gap:14px;margin-bottom:12px}.settings-header h1{margin:0;font-size:24px}.settings-group{margin:0 0 16px;padding:6px 16px 12px;border:1px solid var(--border, #262b36);border-radius:12px;background:var(--panel, #161a22)}.settings-group legend{padding:0 6px;font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--accent, #22d3ee)}.settings-field{display:flex;flex-direction:column;gap:6px;padding:10px 0;border-bottom:1px solid var(--border, #262b36)}.settings-group .settings-field:last-child{border-bottom:0}.settings-label{display:flex;align-items:baseline;justify-content:space-between;gap:12px;font-size:15px;font-weight:600}.settings-range-value{font-size:14px;font-weight:600;color:var(--accent, #22d3ee);font-variant-numeric:tabular-nums}.settings-field input[type=range]{width:100%;height:44px;margin:0;accent-color:var(--accent, #22d3ee);cursor:pointer}.settings-help{font-size:13px;color:var(--muted, #94a3b8)}.settings-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}.settings-select,.settings-number{min-height:44px;padding:0 10px;border:1px solid var(--border, #262b36);border-radius:8px;background:var(--bg, #0f1116);color:var(--text, #e5e7eb);font:inherit;font-size:15px}.settings-select{flex:1 1 200px;min-width:0;max-width:100%}.settings-number{width:110px}.settings-status{font-weight:600;color:var(--text, #e5e7eb)}.settings-calib-progress{padding:10px 12px;border-radius:8px;background:#22d3ee1f;font-size:16px;font-weight:600}.settings-calib-result{font-size:14px;min-height:1.2em}.settings-calib-result.is-ok{color:var(--ok, #22c55e)}.settings-calib-result.is-error{color:var(--bad, #ef4444)}.settings-note{font-size:13px;color:var(--muted, #94a3b8)}.settings-check{padding:4px 0}.settings-toggle{display:flex;align-items:center;gap:12px;min-height:44px;font-size:15px;cursor:pointer}.settings-toggle input{width:22px;height:22px;margin:0;accent-color:var(--accent, #22d3ee);cursor:pointer}.settings-footer{display:flex;justify-content:flex-start;margin-top:8px}.settings-diag-output{margin-top:8px;max-height:260px;overflow-y:auto;padding:10px 12px;background:var(--panel-2, #0b1220);border:1px solid var(--border, #263042);border-radius:8px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;line-height:1.5;white-space:pre}.tuner{max-width:560px;margin:0 auto;padding:16px;display:flex;flex-direction:column;gap:16px}.tuner [hidden]{display:none!important}.tuner-header{display:flex;align-items:center;gap:12px}.tuner-header h1{font-size:20px;margin:0}.tuner-card{display:flex;flex-direction:column;align-items:center;gap:8px;padding:24px 16px;text-align:center}.tuner-strings{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-bottom:4px}.tuner-string{min-width:52px;min-height:44px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;border-radius:10px;border:1px solid var(--border);background:var(--panel-2);color:var(--muted);font-family:var(--mono);cursor:pointer;transition:background .15s,color .15s,border-color .15s}.tuner-string-num{font-size:11px;opacity:.8}.tuner-string-name{font-size:14px}.tuner-string.is-current{color:var(--accent-ink);background:var(--accent);border-color:var(--accent)}.tuner-nav{display:flex;gap:10px}.tuner-target-label{color:var(--muted);font-size:13px;margin-top:8px}.tuner-target{font-size:22px;font-weight:700;color:var(--text)}.tuner-level-row{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:6px}.tuner-level-label{color:var(--muted);font-size:12px}.tuner-level{position:relative;width:140px;height:12px;border-radius:6px;background:#ffffff14}.tuner-level-fill{position:absolute;left:0;top:0;bottom:0;width:0;border-radius:6px;background:var(--accent);transition:width 50ms linear}.tuner-level-fill.below{background:var(--muted)}.tuner-level-gate{position:absolute;top:-3px;bottom:-3px;left:0;width:2px;margin-left:-1px;background:var(--warn)}.tuner-note{font-size:64px;font-weight:700;line-height:1;color:var(--text);transition:color .15s}.tuner-note.is-in-tune{color:var(--ok)}.tuner-note.is-close{color:var(--warn)}.tuner-note.is-off{color:var(--bad)}.tuner-freq{font-family:var(--mono);color:var(--muted);font-size:14px}.tuner-meter{position:relative;width:100%;max-width:360px;height:20px;border-radius:999px;background:var(--panel-2);border:1px solid var(--border);overflow:hidden;margin-top:4px}.tuner-meter-fill{position:absolute;inset:0;background:linear-gradient(90deg,var(--bad),var(--warn),var(--ok),var(--warn),var(--bad));opacity:.25}.tuner-meter-mid{position:absolute;left:50%;top:0;bottom:0;width:2px;background:var(--border);transform:translate(-1px)}.tuner-meter-needle{position:absolute;top:-3px;bottom:-3px;width:4px;border-radius:2px;background:var(--text);left:50%;transform:translate(-2px);transition:left .08s linear;box-shadow:0 0 6px #0009}.tuner-cents{font-family:var(--mono);font-size:14px;min-height:18px;color:var(--muted)}.tuner-heard{font-size:13px;min-height:16px;color:var(--warn)}.tuner-stale{font-size:12px;color:var(--warn);min-height:14px}.tuner-status-row{display:flex;align-items:center;justify-content:center;gap:8px}.tuner-led{width:10px;height:10px;border-radius:50%;background:var(--border);flex:0 0 auto;transition:background .15s,box-shadow .15s}.tuner-led.is-listening{background:var(--muted);animation:tuner-led-pulse 1.6s ease-in-out infinite}.tuner-led.is-signal{background:var(--ok);box-shadow:0 0 6px var(--ok);animation:none;opacity:1}@keyframes tuner-led-pulse{0%,to{opacity:.3}50%{opacity:1}}.tuner-status{color:var(--muted);font-size:14px;min-height:20px}.tuner-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}.tuner-help{color:var(--muted);font-size:13px;max-width:420px;margin:4px 0 0}.tuner-diagram{width:100%;max-width:340px;margin:4px 0}.tuner-diagram-svg{width:100%;height:auto;display:block;overflow:visible}.tuner-diagram-nut{fill:var(--border)}.tuner-diagram-line{stroke:var(--muted);opacity:.6;transition:stroke .15s,opacity .15s}.tuner-diagram-label{fill:var(--muted);font-size:11px;font-family:var(--mono);dominant-baseline:middle;transition:fill .15s}.tuner-diagram-arrow{fill:var(--accent);opacity:0;transition:opacity .15s}.tuner-diagram-row.is-current .tuner-diagram-line{stroke:var(--accent);opacity:1}.tuner-diagram-row.is-current .tuner-diagram-label{fill:var(--text);font-weight:700}.tuner-diagram-row.is-current .tuner-diagram-arrow{opacity:1}.tuner-diagram-caption{margin-top:6px;font-size:12px;color:var(--muted);text-align:center}.tuner-diag{margin:8px 0 4px;text-align:left;width:100%}.tuner-diag summary{cursor:pointer;color:var(--accent);font-size:14px;font-weight:600;padding:10px 12px;border:1px solid var(--border);border-radius:10px;background:var(--panel-2);list-style:none}.tuner-diag summary::-webkit-details-marker{display:none}.tuner-diag summary:before{content:"▶ ";display:inline-block;transition:transform .15s}.tuner-diag[open] summary:before{transform:rotate(90deg)}.tuner-diag>*:not(summary){margin-top:8px}.tuner-diag audio{display:block;width:100%;margin:8px 0}.tuner-diag-status{color:var(--muted);font-size:13px;margin:8px 0;min-height:16px}
