:root { --bg:#0b1020; --card:#121a33; --text:#eef2ff; --muted:#a8b3cf; --accent:#2e59ff; }
* { box-sizing: border-box; }
body { margin:0; font-family: system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial, sans-serif; background:var(--bg); color:var(--text); }
.wrap { max-width: 900px; margin: 32px auto; padding: 0 16px; }
h1 { font-size: 1.6rem; margin: 0 0 16px; text-align:center; }
.card { background: var(--card); border: 1px solid rgba(255,255,255,.08); border-radius: 16px; padding: 16px; box-shadow: 0 10px 30px rgba(0,0,0,.25); margin-bottom:16px; }
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: 1fr; }
@media (min-width: 860px){ .grid-2 { grid-template-columns: 1fr 1fr; } }
label { display:block; font-weight: 600; margin-bottom: 6px; color: var(--muted); }
input[type="file"] { width:100%; padding: 10px; border: 1px dashed rgba(255,255,255,.15); border-radius: 12px; background: rgba(255,255,255,.02); color: var(--muted); }
.control { background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08); border-radius: 12px; padding: 12px; }
.range-row { display:flex; gap:10px; align-items:center; }
input[type="number"], select { width: 100%; padding: 8px 10px; border-radius: 8px; border: 1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.03); color: var(--text); }
input[type="range"] { width: 100%; }
.btnbar { display:flex; flex-wrap:wrap; gap:10px; margin-top: 12px; }
button { cursor:pointer; border: 1px solid rgba(255,255,255,.08); background: linear-gradient(180deg, #28345d, #1b2547); color: var(--text); padding: 12px 16px; border-radius: 12px; font-weight:600; }
button.primary { background: linear-gradient(180deg, var(--accent), #163bff); border-color: rgba(0,0,0,.15); }
button:disabled { opacity: .6; cursor:not-allowed; }
.hint { color: var(--muted); font-size: .95rem; }
.out { margin-top: 16px; padding: 16px; border:1px solid rgba(255,255,255,.1); border-radius: 12px; background: rgba(255,255,255,.03); }
audio { width: 100%; margin-top: 10px; }
.tiny { font-size:.9rem; color: var(--muted); }