:root{--bg: #0f1114;--surface: #181b21;--surface-2: #1f242c;--border: #2a313c;--text: #e8eaed;--muted: #9aa3b2;--accent: #5b8def;--accent-hover: #7aa3f5;--success: #3dd68c;--radius: 14px;--font: "DM Sans", system-ui, sans-serif}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:var(--font);background:radial-gradient(1200px 600px at 10% -10%,#1a2744 0%,transparent 55%),radial-gradient(900px 500px at 100% 0%,#1e2a1a 0%,transparent 50%),var(--bg);color:var(--text);line-height:1.5}#app{max-width:720px;margin:0 auto;padding:2.5rem 1.25rem 3rem}header{margin-bottom:2rem}header h1{margin:0 0 .35rem;font-size:1.65rem;font-weight:700;letter-spacing:-.02em}header p{margin:0;color:var(--muted);font-size:.95rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem 1.35rem;margin-bottom:1rem}.card h2{margin:0 0 .75rem;font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}.dropzone{border:2px dashed var(--border);border-radius:12px;padding:2rem 1rem;text-align:center;cursor:pointer;transition:border-color .15s,background .15s;background:var(--surface-2)}.dropzone:hover,.dropzone.dragover{border-color:var(--accent);background:#222833}.dropzone strong{display:block;font-size:1rem;margin-bottom:.35rem}.dropzone span{font-size:.85rem;color:var(--muted)}.dropzone.has-file{border-style:solid;border-color:var(--success);padding:1rem}.file-meta{font-size:.9rem;color:var(--text)}.wave-wrap{margin-top:1rem;border-radius:10px;overflow:hidden;background:#12151a;min-height:96px}.wave-wrap.hidden{display:none}.crop-hint{margin:.65rem 0 0;font-size:.8rem;color:var(--muted)}.crop-times{display:flex;gap:1rem;margin-top:.5rem;font-size:.85rem;font-variant-numeric:tabular-nums;color:var(--muted)}.die-toggle{display:flex;align-items:flex-start;gap:.6rem;margin:0 0 1rem;font-size:.95rem;color:var(--text);cursor:pointer;-webkit-user-select:none;user-select:none}.die-toggle input{margin-top:.2rem;width:1rem;height:1rem;accent-color:var(--accent)}.export-length{margin:0 0 1rem;font-size:.95rem;color:var(--muted);font-variant-numeric:tabular-nums}.export-length b{color:var(--text);font-weight:600}.actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:.25rem}button{font-family:inherit;font-size:.95rem;font-weight:600;border:none;border-radius:10px;padding:.65rem 1.15rem;cursor:pointer;transition:background .15s,opacity .15s}button:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-secondary{background:var(--surface-2);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover:not(:disabled){background:#262c36}.status{margin-top:1rem;font-size:.85rem;color:var(--muted);min-height:1.25rem}.status.error{color:#f07178}.status.ok{color:var(--success)}