:root {
  color-scheme: dark;
  --bg: #0f1115;
  --card: #171a21;
  --border: #2a2e37;
  --text: #e6e8ec;
  --muted: #9aa1ac;
  --accent: #6ea8fe;
  --accent2: #f472b6;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", "Hiragino Kaku Gothic ProN", sans-serif;
  display: flex;
  justify-content: center;
  padding: 32px 16px;
}

.wrap {
  width: 100%;
  max-width: 1040px;
}

header {
  margin-bottom: 24px;
  text-align: center;
}

h1 {
  margin: 0 0 6px;
  font-size: 1.6rem;
}

.sub {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0;
}

.dropzone {
  border: 2px dashed var(--border);
  border-radius: 16px;
  padding: 60px 20px;
  text-align: center;
  cursor: pointer;
  color: var(--muted);
  transition: border-color 0.2s, background 0.2s;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--accent);
  background: rgba(110, 168, 254, 0.06);
}

.hide { display: none !important; }

.player {
  margin-top: 24px;
}

canvas {
  width: 100%;
  height: 320px;
  background: #0a0b0e;
  border: 1px solid var(--border);
  border-radius: 12px;
  display: block;
}

.controls {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
}

.btn-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: #0f1115;
  font-size: 1rem;
  cursor: pointer;
  flex-shrink: 0;
}

.btn-icon:hover { opacity: 0.9; }

#time-current, #time-duration {
  font-variant-numeric: tabular-nums;
  font-size: 0.85rem;
  color: var(--muted);
  width: 42px;
}

input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
}

.vol-label {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
}

.vol-label input[type="range"] {
  flex: none;
  width: 80px;
}

.style-switch {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.style-btn {
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.8rem;
}

.style-btn.active {
  border-color: var(--accent);
  color: var(--accent);
}

.filename {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.8rem;
  text-align: center;
}