:root{color-scheme:light;--bg: #f6f6f3;--surface: #ffffff;--surface-2: #f3f3ef;--surface-3: #ecece7;--border: #d9d9d2;--border-soft: #e5e5de;--text: #161616;--muted: #686868;--muted-2: #88887f;--shadow: 0 18px 40px rgba(0, 0, 0, .06)}*{box-sizing:border-box}html,body{margin:0;min-height:100%}body{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:linear-gradient(180deg,#fbfbf8,#f3f3ef);color:var(--text)}.page-shell{width:min(980px,calc(100vw - 32px));margin:0 auto;padding:36px 0 56px}.home-hero{display:block;margin-bottom:22px}.home-eyebrow{margin:0 0 8px;color:var(--muted-2);font-size:12px;letter-spacing:.08em;text-transform:uppercase}.site-title,.home-title{margin:0;font-size:clamp(28px,5vw,42px);line-height:1.06;letter-spacing:-.03em}.hero-subtitle{margin:12px 0 0;max-width:680px;color:var(--muted);font-size:15px;line-height:1.6}.card{border:1px solid var(--border);border-radius:24px;background:linear-gradient(180deg,#fffffff5,#fafaf7f5);box-shadow:var(--shadow)}.controls-card{padding:16px 18px;margin-bottom:18px}.file-picker-row{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}.file-picker-left{display:flex;align-items:center;gap:10px;flex-wrap:wrap}#videoFile{display:none}.shortcut-help{position:relative}.shortcut-help summary{list-style:none;width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:999px;color:var(--muted);cursor:pointer;-webkit-user-select:none;user-select:none}.shortcut-help summary::-webkit-details-marker{display:none}.shortcut-popover{position:absolute;right:0;top:calc(100% + 8px);z-index:20;min-width:220px;padding:12px;border:1px solid var(--border-soft);border-radius:14px;background:#fff;box-shadow:var(--shadow)}.shortcut-title{font-size:12px;font-weight:700;margin-bottom:8px}.shortcut-list{display:grid;gap:8px}.shortcut-list>div{display:grid;grid-template-columns:44px 1fr;gap:10px;align-items:center;color:var(--muted);font-size:12px}.shortcut-list kbd{display:inline-flex;align-items:center;justify-content:center;min-width:32px;padding:4px 6px;border:1px solid var(--border);border-bottom-width:2px;border-radius:8px;background:var(--surface-2);color:var(--text);font:inherit}.file-btn,.ghost-btn,.icon-btn{appearance:none;border:1px solid var(--border);background:var(--surface-2);color:var(--text);cursor:pointer;transition:background .14s ease,border-color .14s ease,transform .14s ease,opacity .14s ease}.file-btn:hover,.ghost-btn:hover,.icon-btn:hover{background:var(--surface-3);border-color:#cfcfc7;transform:translateY(-1px)}.file-btn:disabled,.ghost-btn:disabled,.icon-btn:disabled,.loop-btn:disabled{cursor:not-allowed;opacity:.45;transform:none}.file-btn,.ghost-btn{border-radius:999px;padding:10px 14px;font-size:13px;font-weight:600}.icon-btn{width:28px;height:28px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;padding:0;font-size:14px;line-height:1;color:var(--muted)}.viewer-card{padding:14px}.viewer-card.audio-mode .media-stage{display:none}.media-stage{position:relative;display:grid;place-items:center;min-height:320px;overflow:hidden;border:1px solid var(--border-soft);border-radius:18px;background:#fff}.media-stage.dragover{border-color:#bdbdb4;background:#e9e9e2}video{width:100%;max-height:68vh;display:none;background:#000}video.ready{display:block}.empty-state{text-align:center;padding:40px 24px}.empty-title{font-size:18px;font-weight:600;letter-spacing:-.02em}.empty-subtitle{margin-top:8px;color:var(--muted);font-size:14px}.wave-strip-shell{margin-top:8px;padding:8px 10px 12px;border:1px solid var(--border-soft);border-radius:16px;background:#fff}.wave-strip-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px}.ab-loop-controls,.wave-toolbar-right{display:flex;align-items:center;gap:6px}.loop-btn{appearance:none;border:1px solid var(--border);background:var(--surface-2);color:var(--text);border-radius:999px;padding:5px 10px;font-size:12px;font-weight:700;cursor:pointer;transition:background .14s ease,border-color .14s ease,opacity .14s ease}.loop-btn:hover{background:var(--surface-3);border-color:#cfcfc7}.loop-btn.is-active{background:#111;border-color:#111;color:#fff}.loop-btn-clear{min-width:30px;padding-inline:0}.zoom-control,.speed-control{display:inline-flex;align-items:center;gap:8px;color:var(--muted);font-size:12px;-webkit-user-select:none;user-select:none}.speed-control{min-width:140px}#zoomSlider,#speedSlider{width:128px;accent-color:#222222}.wave-viewport{width:100%;overflow-x:auto;overflow-y:hidden;border:1px solid var(--border-soft);border-radius:12px;background:#fff;scrollbar-gutter:stable both-edges}#waveCanvas{height:160px;display:block;background:#fff;cursor:pointer}.timeline-row{display:grid;grid-template-columns:auto 64px 1fr 64px;align-items:center;gap:10px;margin-top:8px}.transport-controls{display:inline-flex;align-items:center;gap:8px}.transport-btn{appearance:none;border:0;background:transparent;color:var(--text);width:18px;min-width:18px;height:18px;padding:0;line-height:1;text-align:center;cursor:pointer}.svg-transport-btn svg{width:16px;height:16px;display:block}.transport-btn:hover{color:#000}.transport-btn:disabled{cursor:not-allowed;opacity:.4}.timeline-row span{color:var(--muted);font-size:12px;font-variant-numeric:tabular-nums}#seekBar{width:100%;accent-color:#3d3d3d}.processing-panel{margin-top:10px;padding:13px 14px;border-radius:16px;border:1px solid var(--border-soft);background:#f4f4ef}.processing-topline{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:10px}.processing-stage{font-size:14px;font-weight:700}.processing-detail,.processing-footnote,.status-line{color:var(--muted)}.processing-detail{margin-top:4px;font-size:13px;line-height:1.45;word-break:break-word}.processing-percent{min-width:44px;text-align:right;font-size:16px;font-weight:700;color:#1a1a1a}.progress-bar{height:8px;overflow:hidden;border-radius:999px;background:#e2e2db}.progress-fill{width:0%;height:100%;border-radius:inherit;background:linear-gradient(90deg,#b8b8b2,#767671 55%,#202020);transition:width .18s ease}.processing-footnote{margin-top:8px;font-size:12px}.status-line{margin-top:10px;min-height:18px;font-size:12px}@media(max-width:720px){.page-shell{width:min(100vw - 20px,980px);padding-top:22px}.processing-topline,.wave-strip-toolbar{flex-direction:column;align-items:stretch}.file-picker-row{align-items:flex-start}.shortcut-popover{right:auto;left:0}.wave-toolbar-right{justify-content:space-between}.processing-percent{text-align:left}.timeline-row{grid-template-columns:auto 54px 1fr 54px;gap:8px}#zoomSlider{width:100px}}