/* DBM-3 Dashboard - Dark Theme */

:root {
  --bg-primary: #0f0f1a;
  --bg-card: #1a1a2e;
  --bg-input: #16213e;
  --text-primary: #e0e0e0;
  --text-secondary: #a0a0b0;
  --accent: #4fc3f7;
  --accent-hover: #81d4fa;
  --border: #2a2a4a;
  --green: #66bb6a;
  --yellow: #fdd835;
  --red: #ef5350;
  --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.5;
  min-height: 100vh;
}

/* Loading Spinner */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  gap: 1rem;
}

.loading-overlay.hidden {
  display: none;
}

.loading-overlay p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.header-left {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}

header h1 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.subtitle {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.header-controls {
  display: flex;
  gap: 1rem;
  align-items: center;
}

/* Controls */
.control-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.control-group label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

select, input[type="text"] {
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.4rem 0.6rem;
  font-size: 0.85rem;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color 0.2s;
}

select:focus, input[type="text"]:focus {
  border-color: var(--accent);
}

select {
  cursor: pointer;
}

input[type="text"] {
  width: 200px;
}

.btn {
  background: var(--accent);
  color: var(--bg-primary);
  border: none;
  border-radius: 4px;
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

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

/* Navigation Tabs */
nav {
  display: flex;
  gap: 0;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 0 1.5rem;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  padding: 0.75rem 1.25rem;
  font-size: 0.9rem;
  font-family: var(--font-sans);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

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

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

/* Main Content */
main {
  padding: 1.5rem;
  max-width: 1600px;
  margin: 0 auto;
}

.tab-panel {
  display: none;
}

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

.tab-controls {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

/* Summary Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.25rem;
}

.metric-card .card-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.metric-card .card-value {
  font-size: 1.6rem;
  font-weight: 700;
  font-family: var(--font-mono);
}

.metric-card .card-value.good { color: var(--green); }
.metric-card .card-value.warn { color: var(--yellow); }
.metric-card .card-value.bad { color: var(--red); }

/* Chart Sections */
.chart-section {
  margin-bottom: 1.5rem;
}

.chart-section h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.chart-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem;
  min-height: 300px;
  overflow-x: clip;
  box-sizing: border-box;
  width: 100%;
}

/* Heatmap Grid */
.heatmap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

/* GF Comparison Table */
.gf-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  margin-bottom: 1.5rem;
}

.gf-table th {
  background: var(--bg-input);
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  padding: 0.6rem 0.8rem;
  text-align: right;
  border-bottom: 1px solid var(--border);
}

.gf-table th:first-child {
  text-align: left;
}

.gf-table td {
  padding: 0.5rem 0.8rem;
  text-align: right;
  border-bottom: 1px solid var(--border);
}

.gf-table td:first-child {
  text-align: left;
  font-weight: 600;
  color: var(--accent);
}

.gf-table tr.active-row {
  background: rgba(79, 195, 247, 0.1);
}

.gf-table tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

/* Stats Panel */
.stats-panel {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
}

.stat-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem 1rem;
}

.stat-item .stat-label {
  font-size: 0.7rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-item .stat-value {
  font-size: 1.2rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

/* Fallback Message */
.fallback-message {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  text-align: center;
}

.fallback-message p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

/* Profile Table */
.profile-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
  font-family: var(--font-mono);
}

.profile-table th {
  background: var(--bg-input);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.5rem 0.6rem;
  text-align: right;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  white-space: nowrap;
  user-select: none;
}

.profile-table th:first-child {
  text-align: left;
}

.profile-table th:hover {
  color: var(--accent);
}

.profile-table th.sort-asc::after {
  content: ' \25B2';
}

.profile-table th.sort-desc::after {
  content: ' \25BC';
}

.profile-table td {
  padding: 0.4rem 0.6rem;
  text-align: right;
  border-bottom: 1px solid rgba(42, 42, 74, 0.5);
  white-space: nowrap;
}

.profile-table td:first-child {
  text-align: left;
  color: var(--text-secondary);
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.profile-table tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

/* Color-coded cells */
.cell-green { color: var(--green); }
.cell-yellow { color: var(--yellow); }
.cell-red { color: var(--red); }
.cell-muted { color: var(--text-secondary); }

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.pagination button {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.35rem 0.7rem;
  font-size: 0.8rem;
  cursor: pointer;
  transition: border-color 0.2s;
}

.pagination button:hover {
  border-color: var(--accent);
}

.pagination button.active {
  background: var(--accent);
  color: var(--bg-primary);
  border-color: var(--accent);
}

.pagination button:disabled {
  opacity: 0.4;
  cursor: default;
}

.pagination .page-info {
  font-size: 0.8rem;
  color: var(--text-secondary);
  padding: 0 0.5rem;
}

/* Responsive */
@media (max-width: 1200px) {
  .heatmap-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  header {
    flex-direction: column;
    align-items: flex-start;
  }

  .header-controls {
    width: 100%;
  }

  nav {
    overflow-x: auto;
    padding: 0 1rem;
  }

  main {
    padding: 1rem;
  }

  .card-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }

  input[type="text"] {
    width: 140px;
  }
}