:root { color-scheme: light dark; }
* { box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", Roboto, sans-serif;
  margin: 0; padding: 0;
  background: #0f172a;
  color: #e2e8f0;
  min-height: 100vh;
}
main.app { max-width: 980px; margin: 0 auto; padding: 24px; }
header h1 { margin: 0 0 6px; font-size: 26px; }
.sub { color: #94a3b8; font-size: 14px; margin: 0 0 24px; }
.card {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 14px;
  padding: 18px 22px;
  margin-bottom: 16px;
}
.card h2 { font-size: 17px; margin: 0 0 12px; color: #f1f5f9; }
.card h3 { font-size: 14px; margin: 0 0 8px; color: #cbd5e1; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 8px; }
details {
  background: #0b1220;
  border: 1px solid #1e293b;
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 12px;
}
details > summary {
  cursor: pointer;
  font-weight: 600;
  color: #e2e8f0;
  margin-bottom: 8px;
  font-size: 14px;
}
details[open] > summary { color: #93c5fd; }
details > .row:last-child { margin-bottom: 4px; }
input[type="file"] {
  color: #cbd5e1;
  font-size: 13px;
}
input[type="file"]::file-selector-button {
  background: #334155;
  color: #f1f5f9;
  border: 0;
  padding: 6px 12px;
  border-radius: 6px;
  margin-right: 12px;
  cursor: pointer;
}
input, select {
  flex: 1;
  min-width: 200px;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid #475569;
  background: #0b1220;
  color: #f1f5f9;
  font-size: 14px;
}
button {
  background: #3b82f6;
  color: white;
  border: 0;
  padding: 10px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
}
button:hover { background: #2563eb; }
button.primary { background: #2563eb; }
button:disabled { background: #475569; color: #94a3b8; cursor: not-allowed; }
.link {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 8px;
  background: #334155;
  color: #93c5fd;
  text-decoration: none;
  font-size: 13px;
}
.link:hover { background: #475569; }
.hint { color: #94a3b8; font-size: 12px; }
.status {
  font-size: 13px;
  margin: 8px 0;
  padding: 8px 12px;
  border-radius: 6px;
}
.status.info { background: #1d4ed833; color: #bfdbfe; }
.status.ok { background: #16a34a33; color: #bbf7d0; }
.status.err { background: #dc262633; color: #fecaca; }

#meta-block {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 14px;
  margin-top: 12px;
  align-items: center;
}
#meta-block img { width: 120px; border-radius: 8px; }
.meta strong { color: #f1f5f9; }
.muted { color: #94a3b8; font-size: 12px; }

video, audio {
  width: 100%;
  max-height: 320px;
  background: #000;
  border-radius: 10px;
  margin-top: 8px;
}

.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 14px;
}
@media (max-width: 720px) {
  .split-grid { grid-template-columns: 1fr; }
  #meta-block { grid-template-columns: 1fr; }
}

progress {
  width: 100%;
  margin-top: 10px;
  height: 6px;
  appearance: none;
}
progress::-webkit-progress-bar { background: #334155; border-radius: 6px; }
progress::-webkit-progress-value { background: #3b82f6; border-radius: 6px; }

pre {
  background: #0b1220;
  border: 1px solid #1e293b;
  border-radius: 10px;
  padding: 14px;
  margin-top: 14px;
  max-height: 520px;
  overflow: auto;
  white-space: pre-wrap;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px;
  line-height: 1.55;
  color: #e2e8f0;
}
pre .cue { color: #93c5fd; display: inline-block; min-width: 64px; }
footer { padding: 20px 0; color: #94a3b8; }