/* Modern Dark Theme - Slate/Blue Palette */
:root {
  --bg-color: #0f172a; /* Slate 900 */
  --card-bg: #1e293b; /* Slate 800 */
  --card-border: #334155; /* Slate 700 */
  --text-primary: #f1f5f9; /* Slate 100 */
  --text-secondary: #94a3b8; /* Slate 400 */
  --accent-color: #3b82f6; /* Blue 500 */
  --accent-hover: #2563eb; /* Blue 600 */
  --success-color: #10b981; /* Emerald 500 */
  --table-header-bg: #0f172a;
  --table-row-hover: #334155;
  --scrollbar-thumb: #475569;
  --scrollbar-track: #0f172a;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  height: 100vh;
  overflow: hidden;
  background-image: radial-gradient(circle at 50% 0%, #1e293b 0%, #0f172a 100%);
}

#app {
  display: flex;
  flex-direction: column; /* Changed to column to include header */
  height: 100vh;
  padding: 16px;
  gap: 16px;
  box-sizing: border-box;
}

/* Header Styling */
.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 8px;
  flex: 0 0 auto;
}

.dashboard-title {
  font-size: 24px;
  font-weight: 700;
  background: linear-gradient(to right, #60a5fa, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
}

/* Main Layout */
.main-content {
  display: flex;
  flex: 1;
  gap: 16px;
  min-height: 0; /* Important for nested scrolling */
}

.left-panel {
  flex: 3;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

.right-panel {
  flex: 2;
  display: flex;
  flex-direction: column;
  background-color: var(--card-bg);
  border-radius: 12px;
  border: 1px solid var(--card-border);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  padding: 20px;
  min-width: 0;
}

/* Cards */
.card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

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

.btn-primary {
  padding: 8px 16px;
  border-radius: 8px;
  border: none;
  background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
  color: white;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 2px 4px rgba(59, 130, 246, 0.3);
  font-size: 14px;
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 4px 6px rgba(59, 130, 246, 0.4);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  filter: grayscale(0.5);
}

/* Station List / Table */
.station-list {
  flex: 1; /* Give it space */
  min-height: 0;
  @apply card; /* Conceptually using card styles */
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.station-list-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--card-border);
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  background-color: rgba(15, 23, 42, 0.5);
}

.station-table-container {
  flex: 1;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

.station-table {
  width: 100%;
  border-collapse: separate; /* Changed for border-radius support if needed, but sticky needs collapse usually or specific handling. Keeping collapse for alignment. */
  border-collapse: collapse;
  font-size: 14px;
}

.station-table th {
  background-color: var(--table-header-bg);
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.05em;
  padding: 12px 16px;
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--card-border);
  box-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.station-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--card-border);
  color: var(--text-primary);
  transition: background-color 0.15s;
}

.station-table tbody tr:hover td {
  background-color: var(--table-row-hover);
}

.station-table tbody tr:last-child td {
  border-bottom: none;
}

/* Chart */
#chart {
  flex: 1;
  min-height: 300px;
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 16px;
  box-sizing: border-box;
}

/* AI Analysis Section */
.ai-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.ai-title::before {
  content: '';
  display: block;
  width: 4px;
  height: 18px;
  background-color: var(--accent-color);
  border-radius: 2px;
}

.ai-box {
  flex: 1;
  background-color: rgba(15, 23, 42, 0.3); /* Slightly darker inner bg */
  border-radius: 8px;
  border: 1px solid var(--card-border);
  padding: 16px;
  overflow-y: auto;
  font-size: 14px;
  line-height: 1.7;
  color: #cbd5e1; /* Slate 300 */
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) transparent;
}

.ai-question {
  background-color: rgba(59, 130, 246, 0.1);
  border-left: 3px solid var(--accent-color);
  padding: 12px;
  border-radius: 0 4px 4px 0;
  margin-bottom: 16px;
}

.ai-question .label {
  font-size: 12px;
  color: var(--accent-color);
  font-weight: 700;
  margin-bottom: 4px;
  text-transform: uppercase;
}

.ai-question .question-text {
  font-size: 14px;
  color: var(--text-primary);
}

.ai-result {
  margin-top: 16px;
}

/* Markdown Styling in AI Result */
.ai-result h1, .ai-result h2, .ai-result h3 {
  color: var(--text-primary);
  margin-top: 20px;
  margin-bottom: 10px;
  font-weight: 600;
}
.ai-result strong {
  color: #60a5fa; /* Blue 400 */
}
.ai-result ul {
  padding-left: 20px;
}
.ai-result li {
  margin-bottom: 6px;
}
.ai-result p {
  margin-bottom: 12px;
}

/* Markdown Table Styling in AI Result */
.ai-result table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 13px;
  background-color: var(--card-bg); /* Use card bg to distinguish from ai-box bg */
  border: 1px solid var(--card-border);
  border-radius: 6px;
  overflow: hidden; /* For rounded corners on table */
}

.ai-result th,
.ai-result td {
  padding: 10px 12px;
  border: 1px solid var(--card-border); /* Explicit border color */
  text-align: left;
}

.ai-result th {
  background-color: rgba(15, 23, 42, 0.8);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.ai-result tr:nth-child(even) {
  background-color: rgba(255, 255, 255, 0.02); /* Slight zebra striping */
}

.ai-result tr:hover td {
  background-color: var(--table-row-hover);
}

/* Custom Scrollbar Webkit */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #64748b;
}