:root {
  --bg: #0d1117;
  --panel: #161b22;
  --panel-2: #1c232c;
  --border: #2a313c;
  --text: #e6edf3;
  --muted: #8b95a3;
  --accent: #4f8cff;
  --accent-2: #6aa9ff;
  --good: #3fb950;
  --bad: #f85149;
  --warn: #d29922;
  --shadow: 0 4px 20px rgba(0,0,0,0.35);
  font-synthesis: none;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, system-ui, sans-serif;
  font-size: 14px;
  min-height: 100vh;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand h1 { font-size: 18px; margin: 0; font-weight: 600; }
.logo { font-size: 22px; }
.health { color: var(--muted); font-size: 12px; font-family: ui-monospace, monospace; }

.layout {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 18px;
  padding: 20px;
  max-width: 1600px;
  margin: 0 auto;
}
@media (max-width: 1100px) { .layout { grid-template-columns: 1fr; } }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
  min-height: 320px;
}
.panel h2 {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin: 0 0 14px;
  font-weight: 600;
}

/* Dropzone */
.dropzone {
  border: 2px dashed var(--border);
  border-radius: 10px;
  padding: 36px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  background: var(--panel-2);
}
.dropzone.drag { border-color: var(--accent); background: rgba(79,140,255,.08); }
.dz-icon { font-size: 42px; margin-bottom: 10px; }
.dz-title { font-size: 15px; }
.dz-sub { color: var(--muted); font-size: 12px; margin-top: 6px; }
.link {
  background: none; border: none; color: var(--accent);
  cursor: pointer; font: inherit; padding: 0; text-decoration: underline;
}

.source-info { margin-top: 16px; }
.source-info h3 { margin: 0 0 12px; font-size: 14px; word-break: break-all; }
.meta { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 18px; margin: 0 0 16px; }
.meta div { display: flex; flex-direction: column; }
.meta dt { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.meta dd { margin: 2px 0 0; font-family: ui-monospace, monospace; font-size: 13px; }

/* Params */
.group { margin-bottom: 16px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 16px; }
label { display: block; font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
label.check {
  display: flex; align-items: center; gap: 8px;
  text-transform: none; letter-spacing: 0;
  color: var(--text); font-size: 13px; margin-top: 10px;
}
select, input[type="number"] {
  width: 100%;
  margin-top: 6px;
  padding: 8px 10px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
}
select:focus, input:focus { outline: none; border-color: var(--accent); }

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: var(--panel-2);
  border-radius: 3px;
  margin-top: 10px;
  border: 1px solid var(--border);
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px; height: 18px;
  background: var(--accent);
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid var(--bg);
}
input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px;
  background: var(--accent);
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid var(--bg);
}

.value-badge {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 8px;
  font-family: ui-monospace, monospace;
  color: var(--accent-2);
  font-size: 12px;
  margin-left: 8px;
  text-transform: none;
}

.hint { color: var(--muted); font-size: 11px; margin-top: 6px; }

.advanced {
  border-top: 1px solid var(--border);
  margin-top: 18px;
  padding-top: 12px;
}
.advanced summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .06em;
  user-select: none;
  margin-bottom: 12px;
}
.advanced summary::marker { color: var(--accent); }

/* Buttons */
.btn-primary {
  display: inline-block;
  width: 100%;
  text-align: center;
  background: var(--accent);
  color: white;
  border: none;
  padding: 11px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, transform .05s;
  text-decoration: none;
  margin-top: 8px;
}
.btn-primary:hover:not(:disabled) { background: var(--accent-2); }
.btn-primary:active:not(:disabled) { transform: translateY(1px); }
.btn-primary:disabled { opacity: .45; cursor: not-allowed; }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 14px;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  margin-top: 10px;
  width: 100%;
}
.btn-ghost:hover { border-color: var(--accent); }

/* Result */
.empty {
  color: var(--muted);
  text-align: center;
  padding: 60px 20px;
  font-size: 13px;
}
.progress-bar {
  height: 12px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 10px;
}
#bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width .25s ease-out;
}
.prog-stats {
  display: flex;
  gap: 18px;
  font-family: ui-monospace, monospace;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 8px;
}
.prog-stats #pct { color: var(--accent-2); font-weight: 600; }
.message { font-size: 13px; color: var(--text); margin-bottom: 12px; }
.logbox summary {
  cursor: pointer; font-size: 12px; color: var(--muted);
  text-transform: uppercase; letter-spacing: .06em;
}
.logbox pre {
  background: #0a0e14;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px;
  margin-top: 8px;
  max-height: 180px;
  overflow: auto;
  font-size: 11px;
  color: #b9c3d0;
}

video {
  width: 100%;
  background: #000;
  border-radius: 8px;
  margin-bottom: 12px;
  max-height: 360px;
}
.out-stats {
  font-family: ui-monospace, monospace;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 12px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.actions { display: flex; flex-direction: column; gap: 6px; }

.error {
  background: rgba(248, 81, 73, .08);
  border: 1px solid var(--bad);
  border-radius: 8px;
  padding: 14px;
}
.error h3 { margin: 0 0 8px; color: var(--bad); font-size: 14px; }
.error pre {
  background: #0a0e14; padding: 10px; border-radius: 4px;
  font-size: 11px; max-height: 200px; overflow: auto; margin: 0;
  color: #f5b3b0;
}

.hidden { display: none !important; }