:root {
  --bg: #0f1117; --surface: #1a1d27; --border: #2a2d3a;
  --accent: #7c6af7; --text: #e0e0e0; --muted: #888; --radius: 10px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Inter','PingFang SC','Microsoft YaHei',sans-serif;
  background: var(--bg); color: var(--text);
  min-height: 100vh; display: flex; justify-content: center;
  align-items: flex-start; padding: 40px 16px;
}
.container { width: 100%; max-width: 680px; }
h1 {
  font-size: 1.5rem; font-weight: 700; text-align: center; margin-bottom: 6px;
  background: linear-gradient(135deg,#a78bfa,#f472b6);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.subtitle { text-align: center; color: var(--muted); font-size: 0.8rem; margin-bottom: 28px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; margin-bottom: 16px; }
label { display: block; font-size: 0.78rem; font-weight: 600; color: var(--muted); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.06em; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
input[type="text"], input[type="password"], textarea, select {
  width: 100%; background: #11131a; border: 1px solid var(--border);
  border-radius: 6px; color: var(--text); font-size: 0.9rem;
  padding: 10px 12px; outline: none; transition: border-color 0.2s;
}
input:focus, textarea:focus, select:focus { border-color: var(--accent); }
textarea { resize: vertical; min-height: 110px; line-height: 1.6; }
select { cursor: pointer; }
.btn-row { display: flex; gap: 10px; margin-top: 16px; }
.btn {
  flex: 1; padding: 12px; border: none; border-radius: 6px;
  font-size: 0.9rem; font-weight: 600; cursor: pointer;
  transition: opacity 0.2s, transform 0.1s;
}
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary { background: linear-gradient(135deg,#7c6af7,#a78bfa); color: #fff; }
.btn-danger { background: #2a1a1a; border: 1px solid #5a2a2a; color: #ff8080; }
.btn-secondary { background: #1a1d27; border: 1px solid var(--border); color: var(--text); }
.log-area {
  background: #0a0b10; border: 1px solid var(--border); border-radius: 6px;
  padding: 12px; font-family: 'Fira Code',monospace; font-size: 0.73rem;
  color: #9ca3af; max-height: 180px; overflow-y: auto; margin-top: 10px; line-height: 1.7;
}
.log-line { display: flex; gap: 8px; }
.log-ts { color: #4b5563; flex-shrink: 0; }
.log-info { color: #6ee7b7; } .log-warn { color: #fde68a; }
.log-err  { color: #f87171; } .log-audio { color: #93c5fd; }
.progress-bar {
  height: 3px; background: var(--border); border-radius: 2px;
  margin-top: 12px; overflow: hidden; opacity: 0; transition: opacity 0.3s;
}
.progress-bar.active { opacity: 1; }
.progress-fill {
  height: 100%; background: linear-gradient(90deg,#7c6af7,#a78bfa);
  width: 0%; transition: width 0.4s ease;
}
.status-badge {
  display: inline-block; font-size: 0.72rem; padding: 2px 8px;
  border-radius: 20px; margin-left: 8px; vertical-align: middle;
}
.status-idle       { background:#1f2937; color:#6b7280; }
.status-connecting { background:#1f2a1f; color:#86efac; }
.status-playing    { background:#1f1f2e; color:#a78bfa; }
.status-done       { background:#1a2e1a; color:#4ade80; }
.status-error      { background:#2e1a1a; color:#f87171; }
#waveform { width:100%; height:48px; margin-top:10px; border-radius:4px; display:block; }
.speed-slider {
  -webkit-appearance:none; width:100%; height:4px; border-radius:2px;
  background: var(--border); outline:none; margin:8px 0;
}
.speed-slider::-webkit-slider-thumb {
  -webkit-appearance:none; width:14px; height:14px; border-radius:50%;
  background:var(--accent); cursor:pointer;
}
.speed-val { font-size:0.78rem; color:var(--accent); float:right; }
.hint { font-size:0.72rem; color:var(--muted); margin-top:6px; }
.hint a { color:#a78bfa; }
#nativeAudio { display: none; }