* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0d1117;
  --surface: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --accent: #d4a574;
  --accent-hover: #e0b88a;
  --danger: #f85149;
  --success: #3fb950;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

#app {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

header {
  text-align: center;
  margin-bottom: 2rem;
}

header h1 { font-size: 1.8rem; }
.subtitle { color: var(--text-muted); margin-top: 0.5rem; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1rem;
}

.card h2 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  color: var(--accent);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.form-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.form-row input { flex: 1; min-width: 150px; }

input, select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  font-size: 0.9rem;
}

input:focus { outline: none; border-color: var(--accent); }

button {
  background: var(--accent);
  color: var(--bg);
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
}

button:hover { background: var(--accent-hover); }

.btn-secondary {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.btn-secondary:hover { color: var(--text); border-color: var(--text-muted); }

.btn-danger { background: var(--danger); color: white; }

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1.5rem 0;
}

pre {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem;
  overflow-x: auto;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
  white-space: pre-wrap;
  word-break: break-all;
}

.hidden { display: none; }

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding: 0.75rem 1rem;
  background: var(--surface);
  border-radius: 8px;
  border: 1px solid var(--border);
}

.session-item {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem;
  margin-bottom: 0.75rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.session-info { flex: 1; }
.session-info .session-name { font-weight: 600; }
.session-info .session-dir { color: var(--text-muted); font-family: monospace; font-size: 0.85rem; }
.session-info .session-id { color: var(--text-muted); font-size: 0.8rem; }
.session-info .session-meta { color: var(--text-muted); font-size: 0.8rem; margin-top: 0.25rem; }

.session-actions { display: flex; gap: 0.5rem; flex-shrink: 0; flex-wrap: wrap; }

.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  background: rgba(63, 185, 80, 0.15);
  color: var(--success);
  border: 1px solid rgba(63, 185, 80, 0.3);
}

.badge-warn {
  background: rgba(248, 81, 73, 0.15);
  color: var(--danger);
  border-color: rgba(248, 81, 73, 0.3);
}

.result-text { margin-top: 0.5rem; font-size: 0.9rem; }
.result-text.success { color: var(--success); }
.result-text.error { color: var(--danger); }

.search-bar { margin-bottom: 1rem; }
.search-bar input { width: 100%; }

.empty-state {
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
}

details { margin-top: 1rem; }
details summary {
  cursor: pointer;
  color: var(--text-muted);
  font-size: 0.9rem;
}

label { font-size: 0.85rem; color: var(--text-muted); }

.versions-panel {
  margin-top: 0.5rem;
  padding: 0.5rem 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.version-list {
  list-style: none;
  margin-top: 0.25rem;
}

.version-list li {
  padding: 0.2rem 0;
  border-bottom: 1px solid var(--border);
}

.version-list li:last-child { border-bottom: none; }

.version-list a {
  color: var(--accent);
  text-decoration: none;
  margin-left: 0.5rem;
}

.version-list a:hover { text-decoration: underline; }

.text-muted { color: var(--text-muted); }

@media (max-width: 600px) {
  .form-row { flex-direction: column; }
  .session-item { flex-direction: column; }
}