:root {
  --bg: #0f1115;
  --card: #171a21;
  --text: #e6e8ec;
  --muted: #8b92a3;
  --accent: #4f8cff;
  --warn: #ff6b6b;
  --ok: #46c98a;
  --border: #2a2e38;
}
* { box-sizing: border-box; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  margin: 0;
  padding: 0 0 3rem;
}
header {
  padding: 2rem 2rem 1rem;
  border-bottom: 1px solid var(--border);
}
header h1 { margin: 0 0 0.25rem; font-size: 1.5rem; }
.sub { color: var(--muted); margin: 0; font-size: 0.9rem; }
main {
  max-width: 720px;
  margin: 1.5rem auto;
  padding: 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem;
}
.card-head { display: flex; justify-content: space-between; align-items: center; }
.card h2 { margin: 0 0 0.75rem; font-size: 1.05rem; }
select {
  width: 100%;
  background: #0d0f14;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.4rem;
}
select option { padding: 0.3rem; }
.version-list {
  max-height: 260px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #0d0f14;
}
.version-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 0.6rem;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  font-size: 0.88rem;
}
.version-row:last-child { border-bottom: none; }
.version-row:hover { background: #131620; }
.version-row.selected { background: #1b2333; }
.version-row input { flex: none; }
.detail { color: var(--muted); font-size: 0.85rem; min-height: 1.2em; }
.status { color: var(--muted); font-size: 0.85rem; margin-bottom: 0.5rem; }
.device {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 0.4rem;
  cursor: pointer;
}
.device.selected { border-color: var(--accent); background: #1b2333; }
.device.disabled { opacity: 0.4; cursor: not-allowed; }
.device .path { font-weight: 600; }
.device .meta { color: var(--muted); font-size: 0.82rem; }
.warn { color: var(--warn); font-weight: 600; font-size: 0.9rem; }
input[type=text] {
  width: 100%;
  background: #0d0f14;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.5rem;
  margin: 0.4rem 0 1rem;
}
button {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 6px;
  padding: 0.55rem 1rem;
  cursor: pointer;
  font-size: 0.9rem;
}
button:disabled { background: #333844; color: #777; cursor: not-allowed; }
.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 0.3rem 0.7rem;
  font-size: 0.8rem;
}
.mode-toggle {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}
.mode-btn {
  flex: 1;
  min-width: 160px;
  background: #0d0f14;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 0.6rem 0.75rem;
  font-size: 0.85rem;
}
.mode-btn.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}
.progress-bar {
  background: #0d0f14;
  border: 1px solid var(--border);
  border-radius: 6px;
  height: 14px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}
.progress-fill { background: var(--accent); height: 100%; width: 0%; transition: width 0.2s; }
pre#log {
  background: #0d0f14;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.6rem;
  height: 220px;
  overflow-y: auto;
  font-size: 0.78rem;
  white-space: pre-wrap;
}
code { background: #0d0f14; padding: 0.1rem 0.3rem; border-radius: 4px; }