:root{--in-tune-green: #4caf50;--close-yellow: #ffc107;--far-red: #f44336;--dark-background: #1a1a2e;--dark-surface: #16213e;--gauge-background: #0f3460;--needle-color: #e94560;--tick-color: #cccccc;--text-light: #eeeeee;--text-light-rgb: 238, 238, 238}@font-face{font-family:"Exo 2";src:url(./exo2_bold-COdEkTv1.ttf) format("truetype");font-weight:700}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{background:var(--dark-background);color:var(--text-light);font-family:system-ui,-apple-system,Segoe UI,sans-serif;overflow:hidden}#app{height:100%}.screen{display:none;height:100%}.screen.visible{display:flex;flex-direction:column}button{font:inherit;cursor:pointer}.primary-button{background:var(--gauge-background);color:var(--text-light);border:1px solid rgba(var(--text-light-rgb),.25);border-radius:24px;padding:12px 40px;font-size:18px}.primary-button:hover{filter:brightness(1.3)}.text-button{background:none;border:none;color:rgba(var(--text-light-rgb),.6);font-size:15px;padding:12px}.text-button:hover{color:var(--text-light)}.icon-button{background:none;border:none;color:rgba(var(--text-light-rgb),.6);font-size:26px;padding:4px 10px;line-height:1}.icon-button:hover{color:var(--text-light)}.site-link{color:rgba(var(--text-light-rgb),.45);font-size:14px;text-decoration:none}.site-link:hover{color:var(--text-light);text-decoration:underline}.tone-in-tune{color:var(--in-tune-green)}.tone-close{color:var(--close-yellow)}.tone-far{color:var(--far-red)}.tone-idle{color:var(--text-light)}.start-screen{position:relative;align-items:center;justify-content:center}.lang-toggle{position:absolute;top:14px;right:16px;display:flex;align-items:center;gap:6px}.lang-button{background:none;border:none;color:rgba(var(--text-light-rgb),.45);font-size:14px;padding:4px 2px}.lang-button:hover{color:var(--text-light)}.lang-button.active{color:var(--text-light);font-weight:700}.lang-sep{color:rgba(var(--text-light-rgb),.3);font-size:13px}.start-content{display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center;padding:24px}.app-title{font-family:"Exo 2",system-ui,sans-serif;font-size:52px}.app-subtitle{color:rgba(var(--text-light-rgb),.6);font-size:18px;margin-bottom:24px}.start-note{color:rgba(var(--text-light-rgb),.45);font-size:14px}.start-error{color:var(--far-red);font-size:15px;max-width:420px}.tuner-header{display:flex;align-items:center;justify-content:space-between;padding:14px 16px 0}.app-name{font-family:"Exo 2",system-ui,sans-serif;font-size:14px;color:rgba(var(--text-light-rgb),.5)}.test-banner{border:1px solid var(--close-yellow);border-radius:8px;color:var(--close-yellow);font-size:14px;padding:8px 14px;text-align:center;margin-bottom:4px}.tuner-main{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:0 16px;width:100%;max-width:480px;margin:0 auto}.note-display{font-family:"Exo 2",system-ui,sans-serif;font-weight:700;font-size:110px;line-height:1}.note-octave{font-size:.47em}.freq-display{font-family:"Exo 2",system-ui,sans-serif;font-weight:700;font-size:38px;color:rgba(var(--text-light-rgb),.7)}.gauge-wrap{position:relative;width:100%}.needle-gauge{display:block;width:100%}.a4-label{position:absolute;right:12px;bottom:4px;font-family:"Exo 2",system-ui,sans-serif;font-weight:700;font-size:16px;color:var(--close-yellow)}.cents-display{font-size:26px}.tuner-footer{text-align:center;padding:8px 0 14px}.settings-screen{padding:32px 24px 24px;max-width:560px;margin:0 auto;width:100%;overflow-y:auto}.settings-screen h1{font-family:"Exo 2",system-ui,sans-serif;font-size:36px;margin-bottom:28px}.setting{margin-bottom:26px}.setting-title{font-size:16px}.setting-hint{font-size:14px;color:rgba(var(--text-light-rgb),.5);margin-bottom:8px}.setting-value{font-size:15px;color:rgba(var(--text-light-rgb),.7);margin-top:4px}.settings-screen input[type=range]{width:100%;accent-color:var(--in-tune-green)}.device-select{width:100%;padding:8px 10px;background:var(--dark-surface);color:var(--text-light);border:1px solid rgba(var(--text-light-rgb),.25);border-radius:6px;font:inherit}.settings-footer{margin-top:36px}.about{text-align:center;color:rgba(var(--text-light-rgb),.4);font-size:14px;margin-bottom:14px}.settings-buttons{display:flex;justify-content:space-between;align-items:center}.settings-site-link{display:block;text-align:center;margin-top:20px}.debug-overlay{position:fixed;left:0;right:0;bottom:0;height:32vh;background:#0a0a14eb;border-top:1px solid rgba(var(--text-light-rgb),.25);display:flex;flex-direction:column;z-index:10}.debug-toolbar{display:flex;gap:8px;padding:2px 8px}.debug-log{flex:1;overflow-y:auto;margin:0;padding:0 8px 8px;font-size:11px;line-height:1.35;color:rgba(var(--text-light-rgb),.85);white-space:pre}