:root{--bg:#1a1a2e;--bg-surface:#222240;--bg-hover:#2a2a4a;--text:#e0e0e0;--text-muted:#88a;--accent:#4fc3f7;--accent-hover:#81d4fa;--danger:#ef5350;--border:#335;--radius:8px;color:var(--text);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:15px}*{box-sizing:border-box;margin:0;padding:0}body{min-height:100vh}.container{max-width:480px;margin:0 auto;padding:24px 20px 40px}header{text-align:center;margin-bottom:24px}h1{color:#fff;letter-spacing:-.5px;margin:0;font-size:28px;font-weight:700}.subtitle{color:var(--text-muted);margin-top:4px;font-size:14px}h2{text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);margin:28px 0 12px;font-size:14px;font-weight:600}.camera-select-row{align-items:center;gap:12px;margin-bottom:16px;display:flex}.camera-select-row label{color:var(--text-muted);white-space:nowrap;font-size:14px}.camera-select-row select{background:var(--bg-surface);color:var(--text);border:1px solid var(--border);border-radius:var(--radius);outline:none;flex:1;padding:8px 12px;font-size:14px}.camera-select-row select:focus{border-color:var(--accent)}.preview-wrapper{border-radius:var(--radius);background:#000;margin-bottom:8px;overflow:hidden}#preview{aspect-ratio:16/9;object-fit:cover;width:100%;height:auto;display:block}.message{text-align:center;color:var(--text-muted);padding:20px;font-size:14px}.message.error{color:var(--danger)}.mode-row{justify-content:space-between;align-items:center;padding:8px 0;display:flex}.mode-label{font-size:14px}.toggle-switch{cursor:pointer;width:44px;height:24px;display:inline-block;position:relative}.toggle-switch input{opacity:0;width:0;height:0}.toggle-slider{background:var(--border);border-radius:12px;transition:background .2s;position:absolute;inset:0}.toggle-slider:before{content:"";background:#fff;border-radius:50%;width:18px;height:18px;transition:transform .2s;position:absolute;bottom:3px;left:3px}.toggle-switch input:checked+.toggle-slider{background:var(--accent)}.toggle-switch input:checked+.toggle-slider:before{transform:translate(20px)}.control-row{margin-bottom:16px}.control-label-row{justify-content:space-between;align-items:center;margin-bottom:6px;display:flex}.control-label-row label{font-size:14px}.control-value{color:var(--accent);font-variant-numeric:tabular-nums;text-align:right;min-width:40px;font-size:13px}.slider{appearance:none;background:var(--border);cursor:pointer;border-radius:3px;outline:none;width:100%;height:6px}.slider::-webkit-slider-thumb{appearance:none;background:var(--accent);cursor:pointer;border-radius:50%;width:18px;height:18px;transition:background .15s}.slider::-webkit-slider-thumb:hover{background:var(--accent-hover)}.slider::-moz-range-thumb{background:var(--accent);cursor:pointer;border:none;border-radius:50%;width:18px;height:18px}.preset-actions{gap:8px;margin-bottom:12px;display:flex}.preset-actions input{background:var(--bg-surface);color:var(--text);border:1px solid var(--border);border-radius:var(--radius);outline:none;flex:1;padding:8px 12px;font-size:14px}.preset-actions input:focus{border-color:var(--accent)}.preset-actions input::placeholder{color:var(--text-muted)}button{background:var(--bg-surface);color:var(--text);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;padding:8px 16px;font-size:14px;transition:background .15s}button:hover{background:var(--bg-hover)}#save-preset{background:var(--accent);color:#1a1a2e;border-color:var(--accent);font-weight:600}#save-preset:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.preset-row{background:var(--bg-surface);border-radius:var(--radius);align-items:center;gap:8px;margin-bottom:6px;padding:8px 12px;display:flex}.preset-name{flex:1;font-size:14px}.preset-btn{padding:4px 12px;font-size:13px}.preset-delete{color:var(--danger);background:0 0;border-color:#0000;padding:2px 8px;font-size:18px}.preset-delete:hover{background:#ef535026}.preset-empty{color:var(--text-muted);text-align:center;padding:12px;font-size:13px}