:root {
  --bg-app: #f8fafc;
  --bg-panel: #ffffff;
  --bg-sidebar: #0f172a;
  --text-main: #334155;
  --text-light: #64748b;
  --text-inv: #f1f5f9;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --border: #e2e8f0;
  --success: #10b981;
  --error: #ef4444;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg-app);
  color: var(--text-main);
  height: 100vh;
  overflow: hidden;
}

.app-shell {
  display: grid;
  grid-template-columns: 240px 1fr;
  height: 100vh;
}

/* Sidebar */
.sidebar {
  background: var(--bg-sidebar);
  color: var(--text-inv);
  display: flex;
  flex-direction: column;
  padding: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
  padding: 0 8px;
}

.logo {
  width: 32px;
  height: 32px;
  background: var(--accent);
  color: white;
  border-radius: 6px;
  display: grid;
  place-items: center;
  font-weight: 700;
}

.nav-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.nav-item {
  background: transparent;
  border: none;
  color: #94a3b8;
  padding: 10px 12px;
  text-align: left;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  transition: all 0.2s;
}

.nav-item:hover {
  background: rgba(255,255,255,0.05);
  color: white;
}

.nav-item.active {
  background: var(--accent);
  color: white;
}

.nav-footer {
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: #94a3b8;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #64748b;
}

.dot.online { background: var(--success); }
.dot.offline { background: var(--error); }

/* Main Content */
.main-content {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

.top-bar {
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.top-bar h1 {
  font-size: 1.1rem;
  margin: 0;
  font-weight: 600;
}

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

.content-area {
  flex: 1;
  overflow: auto;
  padding: 24px;
  position: relative;
}

.tab-pane {
  display: none;
  height: 100%;
}

.tab-pane.active {
  display: block;
}

/* Dashboard */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-panel);
  padding: 20px;
  border-radius: 8px;
  border: 1px solid var(--border);
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.stat-value {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-light);
}

/* Forms & Inputs */
.input-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.input-group.compact {
  flex-direction: row;
  align-items: center;
  margin-bottom: 0;
}

.input-group label, .prefix {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-main);
}

.prefix { color: var(--text-light); margin-right: 4px; }

input, select {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.9rem;
  background: var(--bg-panel);
  font-family: inherit;
}

input:focus, select:focus {
  outline: 2px solid var(--accent);
  border-color: transparent;
}

.btn {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s;
}

.btn.primary { background: var(--accent); color: white; }
.btn.primary:hover { background: var(--accent-hover); }

.btn.secondary { background: white; border-color: var(--border); color: var(--text-main); }
.btn.secondary:hover { background: #f1f5f9; }

.btn.ghost { background: transparent; color: var(--text-light); }
.btn.ghost:hover { color: var(--text-main); background: rgba(0,0,0,0.05); }

.btn.small { padding: 4px 10px; font-size: 0.8rem; }

/* Split View */
.split-view {
  display: grid;
  grid-template-columns: 350px 1fr;
  gap: 24px;
  height: 100%;
}

.left-panel, .right-panel {
  display: flex;
  flex-direction: column;
}

.drop-zone {
  border: 2px dashed var(--border);
  border-radius: 8px;
  padding: 32px;
  text-align: center;
  cursor: pointer;
  margin-bottom: 24px;
  transition: border-color 0.2s;
}

.drop-zone:hover { border-color: var(--accent); }
.drop-msg { color: var(--text-light); font-size: 0.9rem; }

.result-box {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  flex: 1;
  overflow: auto;
}

.empty-state {
  color: var(--text-light);
  text-align: center;
  padding: 40px;
  font-style: italic;
}

/* Search */
.search-bar-container {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}

.search-input { flex: 1; font-size: 1rem; padding: 10px 16px; }

.results-list {
  display: grid;
  gap: 12px;
}

.result-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  cursor: pointer;
  transition: box-shadow 0.2s;
}

.result-card:hover {
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.result-card h4 { margin: 0 0 6px; color: var(--accent); }
.result-card p { margin: 0; color: var(--text-light); font-size: 0.9rem; line-height: 1.5; }
.result-meta { font-size: 0.75rem; color: #94a3b8; margin-top: 8px; display: flex; gap: 12px; }

/* Inspect */
.kv-list { display: grid; gap: 8px; font-size: 0.9rem; }
.kv-item { display: flex; justify-content: space-between; border-bottom: 1px solid #f1f5f9; padding-bottom: 4px; }
.kv-key { color: var(--text-light); }
.kv-val { font-weight: 500; }

.tabs-sub { display: flex; gap: 1px; border-bottom: 1px solid var(--border); margin-bottom: 16px; }
.tab-link {
  background: transparent; border: none; padding: 8px 16px;
  color: var(--text-light); cursor: pointer; border-bottom: 2px solid transparent;
}
.tab-link.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 500; }

.sub-pane { display: none; }
.sub-pane.active { display: block; }

.text-content {
  font-family: 'JetBrains Mono', monospace; font-size: 0.85rem; line-height: 1.6;
  white-space: pre-wrap; background: white; padding: 16px; border-radius: 6px; border: 1px solid var(--border);
}

.code-block {
  font-family: 'JetBrains Mono', monospace; font-size: 0.8rem;
  background: #0f172a; color: #e2e8f0; padding: 16px; border-radius: 6px; margin: 0; overflow: auto;
}

.row { display: flex; gap: 12px; }
.mt-4 { margin-top: 16px; }

/* Highlighting */
em.highlight {
    background-color: #fef08a; /* Yellow-200 */
    color: #854d0e; /* Yellow-800 */
    font-style: normal;
    font-weight: 600;
    padding: 0 2px;
    border-radius: 2px;
}

/* AI Purple Highlighting */
em.highlight {
    background-color: #e9d5ff !important; /* Purple-200 */
    color: #6b21a8 !important; /* Purple-800 */
    border: 1px solid #d8b4fe;
}