/* ==========================================================================
   SmartFlight Price Tracker — Travel Engineering Design System
   Vanilla CSS • Aerospace Cockpit Dark Aesthetic
   ========================================================================== */

:root {
  --bg-canvas: #080c15;
  --bg-surface: #0f172a;
  --bg-card: rgba(18, 26, 44, 0.72);
  --bg-card-hover: rgba(26, 38, 64, 0.85);
  --bg-card-border: rgba(255, 255, 255, 0.08);
  --bg-card-border-glow: rgba(56, 189, 248, 0.3);

  --accent-blue: #38bdf8;
  --accent-blue-glow: rgba(56, 189, 248, 0.25);
  --accent-emerald: #10b981;
  --accent-emerald-glow: rgba(16, 185, 129, 0.25);
  --accent-amber: #f59e0b;
  --accent-amber-glow: rgba(245, 158, 11, 0.25);
  --accent-purple: #a855f7;
  --accent-purple-glow: rgba(168, 85, 247, 0.25);
  --accent-rose: #f43f5e;

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-accent: #38bdf8;

  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-fast: 0.18s ease;
  --transition-normal: 0.28s ease;
  --shadow-card: 0 12px 32px -4px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 24px -2px var(--accent-blue-glow);
}

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

html, body {
  min-height: 100%;
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-main);
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Background Ambient Lighting */
.glow-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.45;
}
.glow-top-left {
  top: -100px;
  left: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.35) 0%, transparent 70%);
}
.glow-top-right {
  top: -80px;
  right: -80px;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.3) 0%, transparent 70%);
}
.glow-bottom-center {
  bottom: -150px;
  left: 35%;
  width: 600px;
  height: 450px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.25) 0%, transparent 70%);
}

.app-container {
  position: relative;
  z-index: 1;
  max-width: 1360px;
  margin: 0 auto;
  padding: 24px 20px 60px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Glass Card Utility */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

/* App Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 6px;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo-icon-wrap {
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.2), rgba(168, 85, 247, 0.2));
  border: 1px solid rgba(56, 189, 248, 0.4);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
  box-shadow: 0 0 16px var(--accent-blue-glow);
}

.radar-svg {
  width: 24px;
  height: 24px;
  animation: planeFloat 3s ease-in-out infinite alternate;
}

@keyframes planeFloat {
  0% { transform: translateY(-2px) rotate(0deg); }
  100% { transform: translateY(2px) rotate(4deg); }
}

.logo-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  display: flex;
  gap: 6px;
}

.brand-smart {
  background: linear-gradient(90deg, #38bdf8, #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-tracker {
  color: #f8fafc;
}

.logo-subtitle {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}

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

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.status-pulse {
  width: 8px;
  height: 8px;
  background-color: var(--accent-emerald);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-emerald);
  animation: pulseDot 2s infinite;
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-blue);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-blue);
}

@keyframes pulseDot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.6; }
}

/* Control Panel */
.control-panel {
  padding: 28px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.panel-h1 {
  font-size: 1.45rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}

.panel-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  max-width: 680px;
}

.trip-type-toggle {
  display: flex;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  padding: 4px;
  gap: 4px;
}

.toggle-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 6px 16px;
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.toggle-btn.active {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.25), rgba(129, 140, 248, 0.25));
  color: var(--accent-blue);
  border: 1px solid rgba(56, 189, 248, 0.4);
}

/* Search Form Grid */
.form-grid {
  display: grid;
  grid-template-columns: 2fr 44px 2fr 1.3fr 1.3fr;
  gap: 14px;
  align-items: flex-end;
  transition: all var(--transition-normal);
}

.form-grid.round-trip-active {
  grid-template-columns: 1.8fr 44px 1.8fr 1.2fr 1.2fr 1fr;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
}

.field-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.text-input {
  width: 100%;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  font-size: 0.95rem;
  font-family: var(--font-main);
  color: #fff;
  transition: all var(--transition-fast);
  outline: none;
}

.text-input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px var(--accent-blue-glow);
  background: rgba(15, 23, 42, 0.95);
}

.iata-badge {
  position: absolute;
  right: 12px;
  background: rgba(56, 189, 248, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.35);
  color: var(--accent-blue);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  pointer-events: none;
}

.swap-btn {
  height: 46px;
  width: 44px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  align-self: flex-end;
}

.swap-btn:hover {
  background: rgba(56, 189, 248, 0.15);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  transform: rotate(180deg);
}

.select-input {
  appearance: none;
  cursor: pointer;
  padding-right: 32px;
}

.date-input {
  color-scheme: dark;
}

/* Autocomplete Dropdown */
.autocomplete-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: 6px;
  background: #0f172a;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.6);
  z-index: 100;
  max-height: 280px;
  overflow-y: auto;
}

.autocomplete-item {
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  transition: background var(--transition-fast);
}

.autocomplete-item:hover, .autocomplete-item.selected {
  background: rgba(56, 189, 248, 0.12);
}

.ac-city {
  font-weight: 600;
  font-size: 0.9rem;
  color: #fff;
}

.ac-name {
  font-size: 0.76rem;
  color: var(--text-muted);
}

.ac-iata {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--accent-blue);
  background: rgba(56, 189, 248, 0.15);
  padding: 2px 7px;
  border-radius: 4px;
}

/* Hubs Preview Bar */
.hubs-preview-bar {
  margin-top: 20px;
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: 12px 16px;
}

.hubs-preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.hubs-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.country-tag {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.hubs-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hub-chip {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.hub-chip:hover {
  background: rgba(56, 189, 248, 0.15);
  border-color: var(--accent-blue);
  color: #fff;
}

.hub-chip.active {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.2), rgba(56, 189, 248, 0.2));
  border-color: rgba(16, 185, 129, 0.5);
  color: #a7f3d0;
}

/* Action Bar */
.action-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 22px;
  flex-wrap: wrap;
  gap: 14px;
}

.quick-presets {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.preset-title {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
}

.preset-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.preset-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.primary-scan-btn {
  background: linear-gradient(135deg, #0284c7, #2563eb);
  color: #fff;
  border: none;
  padding: 13px 28px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  box-shadow: 0 4px 18px rgba(2, 132, 199, 0.4);
  transition: all var(--transition-normal);
}

.primary-scan-btn:hover {
  background: linear-gradient(135deg, #38bdf8, #3b82f6);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(56, 189, 248, 0.5);
}

.primary-scan-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* Spinner */
.btn-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Results Section */
.results-section {
  display: flex;
  flex-direction: column;
  gap: 22px;
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* KPI Metrics Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.kpi-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-md);
  padding: 18px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
}

.kpi-card.highlight-green::before { background: var(--accent-emerald); }
.kpi-card.highlight-blue::before { background: var(--accent-blue); }
.kpi-card.highlight-amber::before { background: var(--accent-amber); }
.kpi-card.highlight-purple::before { background: var(--accent-purple); }

.kpi-icon-bubble {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.green-bubble { background: var(--accent-emerald-glow); border: 1px solid rgba(16, 185, 129, 0.4); }
.blue-bubble { background: var(--accent-blue-glow); border: 1px solid rgba(56, 189, 248, 0.4); }
.amber-bubble { background: var(--accent-amber-glow); border: 1px solid rgba(245, 158, 11, 0.4); }
.purple-bubble { background: var(--accent-purple-glow); border: 1px solid rgba(168, 85, 247, 0.4); }

.kpi-label {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 2px;
}

.kpi-value {
  font-family: var(--font-mono);
  font-size: 1.45rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
}

.kpi-subtext {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* Analyst Verdict Banner */
.analyst-verdict-banner {
  padding: 22px 26px;
  border-left: 4px solid var(--accent-emerald);
}

.verdict-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.verdict-title-tag {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-emerald);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.export-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.export-btn:hover {
  background: rgba(56, 189, 248, 0.15);
  border-color: var(--accent-blue);
  color: #fff;
}

.verdict-text {
  font-size: 0.96rem;
  color: #e2e8f0;
  line-height: 1.6;
}

/* Map Section */
.map-section {
  padding: 24px;
}

.section-title-bar {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.section-h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
}

.section-sub {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

.map-legend {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.legend-dot.cyan { background: var(--accent-blue); box-shadow: 0 0 6px var(--accent-blue); }
.legend-dot.emerald { background: var(--accent-emerald); box-shadow: 0 0 6px var(--accent-emerald); }
.legend-dot.gold { background: var(--accent-amber); box-shadow: 0 0 6px var(--accent-amber); }

.map-canvas {
  height: 380px;
  width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  overflow: hidden;
  background: #0b1120;
}

/* Matrix Header */
.matrix-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  flex-wrap: wrap;
  gap: 14px;
}

.sort-status-bar {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 3px;
  font-weight: 500;
}

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

.matrix-filters {
  display: flex;
  gap: 6px;
  background: rgba(15, 23, 42, 0.7);
  padding: 4px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.filter-pill {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-pill.active {
  background: rgba(56, 189, 248, 0.2);
  color: var(--accent-blue);
}

.matrix-sort-group {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(15, 23, 42, 0.7);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.sort-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
}

.sort-dropdown {
  background: transparent;
  border: none;
  color: #38bdf8;
  font-size: 0.8rem;
  font-weight: 700;
  font-family: var(--font-main);
  cursor: pointer;
  outline: none;
  padding: 3px 0;
}

.sort-dropdown option {
  background: #0f172a;
  color: #fff;
}

/* Baseline Route Card */
.baseline-route-container {
  margin-bottom: 20px;
}

.route-card {
  position: relative;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--card-border-color, var(--bg-card-border));
  border-radius: var(--radius-lg);
  padding: 22px;
  margin-bottom: 18px;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
  overflow: hidden;
}

.route-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 5px;
  height: 100%;
  background: var(--city-color, var(--accent-blue));
  box-shadow: 0 0 12px var(--city-color, var(--accent-blue));
}

.city-pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  font-family: var(--font-mono);
  background: var(--city-bg, rgba(56, 189, 248, 0.15));
  border: 1px solid var(--city-border, rgba(56, 189, 248, 0.4));
  color: var(--city-color, #38bdf8);
}

.city-dot-bullet {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--city-color, #38bdf8);
  box-shadow: 0 0 8px var(--city-color, #38bdf8);
}

.route-card:hover {
  border-color: var(--city-border, rgba(255, 255, 255, 0.2));
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
  transform: translateY(-2px);
}

.route-card.highlighted-from-map {
  border-color: var(--city-color) !important;
  box-shadow: 0 0 24px var(--city-glow) !important;
}

.baseline-card {
  --city-color: #38bdf8;
  --city-bg: rgba(56, 189, 248, 0.15);
  --city-border: rgba(56, 189, 248, 0.45);
  background: linear-gradient(135deg, rgba(14, 26, 48, 0.8), rgba(15, 23, 42, 0.8));
}

.card-top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  flex-wrap: wrap;
  gap: 12px;
}

.route-badge-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.route-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
}

.rec-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.rec-badge.high { background: rgba(16, 185, 129, 0.2); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.4); }
.rec-badge.moderate { background: rgba(245, 158, 11, 0.2); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.4); }
.rec-badge.direct { background: rgba(56, 189, 248, 0.2); color: #7dd3fc; border: 1px solid rgba(56, 189, 248, 0.4); }
.rec-badge.low { background: rgba(244, 63, 94, 0.2); color: #fda4af; border: 1px solid rgba(244, 63, 94, 0.4); }

.card-pricing-block {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.card-price {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 800;
  color: #fff;
}

.savings-pill {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.25), rgba(5, 150, 105, 0.25));
  border: 1px solid rgba(16, 185, 129, 0.5);
  color: #6ee7b7;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

/* Flight Legs Timeline */
.legs-timeline {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 16px;
  align-items: center;
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  padding: 18px;
  margin-bottom: 16px;
}

.single-leg-view {
  grid-template-columns: 1fr;
}

.leg-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.leg-tag {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.leg-corridor {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}

.leg-airline {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
}

.leg-meta {
  font-size: 0.78rem;
  color: var(--text-secondary);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hub-transfer-divider {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
}

.hub-icon {
  font-size: 1.3rem;
  margin-bottom: 4px;
}

.hub-transfer-badge {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent-amber);
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 3px 8px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

/* Card Bottom Metrics Bar */
.card-bottom-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.route-stats-strip {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.stat-item strong {
  color: #fff;
}

.card-actions {
  display: flex;
  gap: 10px;
}

.google-flights-btn {
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.35);
  color: var(--accent-blue);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.google-flights-btn:hover {
  background: var(--accent-blue);
  color: #0b1120;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px var(--accent-blue-glow);
}

.google-flights-btn.secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.12);
  color: var(--text-secondary);
}

.google-flights-btn.secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  box-shadow: none;
}

/* Loading Skeleton */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(8, 12, 21, 0.82);
  backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.loader-box {
  width: 100%;
  max-width: 460px;
  padding: 36px 28px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.radar-scan-animation {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  border: 1px solid rgba(56, 189, 248, 0.3);
  position: relative;
  margin-bottom: 24px;
  overflow: hidden;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.05) 0%, transparent 70%);
}

.radar-circle {
  position: absolute;
  border: 1px dashed rgba(56, 189, 248, 0.2);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.circle-1 { width: 40px; height: 40px; }
.circle-2 { width: 80px; height: 80px; }
.circle-3 { width: 120px; height: 120px; }

.radar-sweep {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 65px;
  height: 65px;
  transform-origin: 0 0;
  background: conic-gradient(from 0deg, rgba(56, 189, 248, 0.4), transparent 60deg);
  animation: radarSweep 2s linear infinite;
}

@keyframes radarSweep {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.airplane-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 1.4rem;
}

.loader-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.loader-sub {
  font-size: 0.84rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.loader-steps {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: left;
  background: rgba(15, 23, 42, 0.6);
  padding: 14px 18px;
  border-radius: var(--radius-md);
  font-size: 0.8rem;
  font-family: var(--font-mono);
}

.step-line.active { color: var(--accent-emerald); }
.step-line.pulsing { color: var(--accent-blue); animation: pulseText 1.5s infinite; }

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

/* Footer */
.app-footer {
  text-align: center;
  padding: 16px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.app-footer a {
  color: var(--accent-blue);
  text-decoration: none;
}
.app-footer a:hover {
  text-decoration: underline;
}

.hidden {
  display: none !important;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
  .form-grid {
    grid-template-columns: 1fr 44px 1fr;
  }
  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
  .swap-btn {
    align-self: center;
    transform: rotate(90deg);
  }
  .legs-timeline {
    grid-template-columns: 1fr;
  }
  .hub-transfer-divider {
    padding: 10px 0;
  }
  .kpi-grid {
    grid-template-columns: 1fr;
  }
  .app-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }
}