/* ── AgentLens Dashboard — Dark Theme ─────────────────────────────────── */

:root {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #21262d;
  --bg-hover: #30363d;
  --border: #30363d;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;
  --accent: #58a6ff;
  --accent-hover: #79c0ff;
  --green: #3fb950;
  --green-dim: rgba(63, 185, 80, 0.15);
  --yellow: #d29922;
  --yellow-dim: rgba(210, 153, 34, 0.15);
  --red: #f85149;
  --red-dim: rgba(248, 81, 73, 0.15);
  --purple: #bc8cff;
  --purple-dim: rgba(188, 140, 255, 0.15);
  --orange: #f0883e;
  --orange-dim: rgba(240, 136, 62, 0.15);
  --radius: 8px;
  --radius-sm: 4px;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

/* ── Header ──────────────────────────────────────────────────────────── */

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-left {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
}

.tagline {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ── Main ────────────────────────────────────────────────────────────── */

.main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

/* ── Views ────────────────────────────────────────────────────────────── */

.view {
  display: none;
}

.view.active {
  display: block;
}

.view-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.view-header h2 {
  font-size: 1.3rem;
  font-weight: 600;
}

.view-actions {
  display: flex;
  gap: 8px;
}

/* ── Buttons ─────────────────────────────────────────────────────────── */

.btn {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

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

.btn-secondary {
  background: transparent;
}

.btn-ghost {
  background: transparent;
  border: none;
  color: var(--accent);
  padding: 8px 12px;
}

.btn-ghost:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

.select-input {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 0.85rem;
  cursor: pointer;
}

/* ── Session List ────────────────────────────────────────────────────── */

.session-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.session-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.session-card:hover {
  border-color: var(--accent);
  background: var(--bg-tertiary);
}

.session-card-left {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.session-agent {
  font-weight: 600;
  font-size: 1rem;
}

.session-meta {
  font-size: 0.8rem;
  color: var(--text-secondary);
  display: flex;
  gap: 16px;
}

.session-card-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.session-tokens {
  text-align: right;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.session-tokens .count {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.status-badge {
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.status-badge.active {
  background: var(--green-dim);
  color: var(--green);
}

.status-badge.completed {
  background: var(--purple-dim);
  color: var(--purple);
}

.status-badge.error {
  background: var(--red-dim);
  color: var(--red);
}

/* ── Session Info Bar ────────────────────────────────────────────────── */

.session-info-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.info-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}

.info-card .label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.info-card .value {
  font-size: 1.1rem;
  font-weight: 600;
}

/* ── Tabs ─────────────────────────────────────────────────────────────── */

.tabs {
  display: flex;
  gap: 2px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.tab {
  padding: 10px 20px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.15s ease;
}

.tab:hover {
  color: var(--text-primary);
}

.tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-content {
  display: none;
}

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

/* ── Timeline ─────────────────────────────────────────────────────────── */

.timeline {
  position: relative;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

.timeline-event {
  position: relative;
  margin-bottom: 16px;
  padding: 14px 18px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.15s ease;
}

.timeline-event:hover {
  border-color: var(--text-muted);
}

.timeline-event::before {
  content: '';
  position: absolute;
  left: -26px;
  top: 20px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--bg-primary);
}

.timeline-event.llm_call::before { background: var(--accent); border-color: var(--accent); }
.timeline-event.tool_call::before { background: var(--orange); border-color: var(--orange); }
.timeline-event.agent_call::before { background: var(--green); border-color: var(--green); }
.timeline-event.agent_error::before, .timeline-event.tool_error::before { background: var(--red); border-color: var(--red); }

.event-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.event-type {
  display: flex;
  align-items: center;
  gap: 8px;
}

.event-type-badge {
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.event-type-badge.llm_call { background: rgba(88, 166, 255, 0.15); color: var(--accent); }
.event-type-badge.tool_call { background: var(--orange-dim); color: var(--orange); }
.event-type-badge.agent_call { background: var(--green-dim); color: var(--green); }
.event-type-badge.agent_error, .event-type-badge.tool_error { background: var(--red-dim); color: var(--red); }

.event-model {
  font-size: 0.8rem;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

.event-time {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.event-body {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.event-io {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 8px;
}

.event-io-block {
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-family: 'SF Mono', Consolas, monospace;
  font-size: 0.8rem;
  color: var(--text-secondary);
  overflow: hidden;
  max-height: 120px;
  overflow-y: auto;
}

.event-io-block .io-label {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.event-reasoning {
  margin-top: 10px;
  padding: 10px 14px;
  background: var(--yellow-dim);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--yellow);
  font-size: 0.85rem;
  color: var(--text-primary);
}

.event-reasoning .reasoning-label {
  font-size: 0.7rem;
  color: var(--yellow);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 2px;
}

.event-stats {
  display: flex;
  gap: 16px;
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.event-stats span {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ── Charts ───────────────────────────────────────────────────────────── */

.charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
}

.chart-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.chart-card h3 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-secondary);
}

.token-summary {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.token-summary h3 {
  font-size: 0.9rem;
  margin-bottom: 12px;
  color: var(--text-secondary);
}

.token-table {
  width: 100%;
  border-collapse: collapse;
}

.token-table th, .token-table td {
  padding: 8px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
}

.token-table th {
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.5px;
}

/* ── Explain Panel ────────────────────────────────────────────────────── */

.explain-panel {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  line-height: 1.8;
}

.explain-panel h2 {
  color: var(--accent);
  margin-bottom: 8px;
  font-size: 1.2rem;
}

.explain-panel h3 {
  color: var(--text-primary);
  margin-top: 16px;
  margin-bottom: 8px;
  font-size: 1rem;
}

.explain-panel strong {
  color: var(--text-primary);
}

.explain-panel em {
  color: var(--text-secondary);
}

.explain-panel ul, .explain-panel ol {
  padding-left: 20px;
}

.explain-panel li {
  margin-bottom: 4px;
}

/* ── Demo Banner ──────────────────────────────────────────────────────── */

.demo-banner {
  background: linear-gradient(135deg, rgba(88, 166, 255, 0.1), rgba(63, 185, 80, 0.1));
  border: 1px solid rgba(88, 166, 255, 0.3);
  border-radius: 0;
  padding: 12px 24px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-align: center;
}

.demo-banner strong {
  color: var(--accent);
}

.demo-banner a {
  color: var(--green);
  text-decoration: none;
  margin-left: 8px;
}

.demo-banner a:hover {
  text-decoration: underline;
}

/* ── Loading ──────────────────────────────────────────────────────────── */

.loading {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ── Responsive ───────────────────────────────────────────────────────── */

@media (max-width: 768px) {
  .main { padding: 16px; }
  .event-io { grid-template-columns: 1fr; }
  .charts-grid { grid-template-columns: 1fr; }
  .session-card { flex-direction: column; gap: 12px; align-items: flex-start; }
  .session-card-right { width: 100%; justify-content: space-between; }
  .view-header { flex-direction: column; gap: 12px; align-items: flex-start; }
}