/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-primary: #f4f6fb;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.82);
  --bg-card-hover: rgba(255, 255, 255, 0.95);
  --border-glass: rgba(0, 0, 0, 0.07);
  --border-active: rgba(37, 99, 235, 0.45);
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --accent: #2563eb;
  --accent-light: #60a5fa;
  --accent-glow: rgba(37, 99, 235, 0.12);
  --success: #10b981;
  --warning: #f59e0b;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.08);

  --radius-lg: 16px;
  --radius-md: 12px;
  --radius: 14px;
  --radius-sm: 8px;
  
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;

  --glass-blur: 20px;
  --transition: 0.2s ease;
  --transition-fast: 0.1s ease;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
}

html { font-size: 15px; }

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -15%, rgba(37,99,235,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 90% 100%, rgba(16,185,129,0.05) 0%, transparent 50%);
}

/* ===== Layout ===== */
.app {
  max-width: 1440px;
  margin: 0 auto;
  padding: 1.5rem 2rem 3rem;
  display: grid;
  grid-template-rows: auto 1fr;
  grid-template-columns: 300px 1fr;
  gap: 1.5rem;
  min-height: 100vh;
}

/* ===== Header ===== */
header {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

header h1 {
  font-size: 1.6rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), #38bdf8, #0ea5e9);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

header .subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

header .badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  border-radius: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  font-size: 0.78rem;
  color: var(--text-secondary);
  backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--shadow-sm);
}

header .badge .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

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

.glass-card:hover {
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: var(--shadow-lg);
}

/* ===== Sidebar ===== */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-self: start;
  position: sticky;
  top: 1.5rem;
}

.sidebar .panel {
  padding: 1.25rem;
}

.panel-title {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
}

/* Country search */
.search-wrapper {
  position: relative;
  margin-bottom: 0.75rem;
}

.search-wrapper svg {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  width: 14px; height: 14px;
  color: var(--text-muted);
  pointer-events: none;
}

#country-search {
  width: 100%;
  padding: 0.55rem 0.75rem 0.55rem 2.2rem;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.6);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.85rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

#country-search:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

#country-search::placeholder {
  color: var(--text-muted);
}

/* Country list */
.country-list {
  max-height: 260px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.country-list::-webkit-scrollbar { width: 4px; }
.country-list::-webkit-scrollbar-track { background: transparent; }
.country-list::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.1); border-radius: 4px; }

.country-item {
  padding: 0.5rem 0.65rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.82rem;
  color: var(--text-secondary);
  transition: background var(--transition), color var(--transition);
  /* Allow text to wrap so names are not cut off */
  white-space: normal;
  word-break: break-word;
  line-height: 1.35;
}

.country-item:hover {
  background: rgba(37,99,235,0.06);
  color: var(--text-primary);
}

.country-item.active {
  background: var(--accent-glow);
  color: var(--accent);
  font-weight: 600;
  border-left: 3px solid var(--accent);
  padding-left: calc(0.65rem - 3px);
}

/* Horizon selector */
.horizon-selector {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.horizon-selector .horizon-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.horizon-selector .horizon-value {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-glow);
  padding: 0.1rem 0.55rem;
  border-radius: 12px;
}

.horizon-selector input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--accent) 0%, rgba(37,99,235,0.15) 100%);
  outline: none;
  cursor: pointer;
}

.horizon-selector input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid #fff;
  box-shadow: 0 2px 6px rgba(37,99,235,0.3);
  cursor: pointer;
  transition: transform var(--transition);
}

.horizon-selector input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.horizon-selector input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid #fff;
  box-shadow: 0 2px 6px rgba(37,99,235,0.3);
  cursor: pointer;
}

.horizon-ticks {
  display: flex;
  justify-content: space-between;
  font-size: 0.68rem;
  color: var(--text-muted);
  padding: 0 2px;
}

/* Model toggles */
.model-toggles {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.model-toggle {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0.6rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background var(--transition);
  user-select: none;
}

.model-toggle:hover {
  background: rgba(37,99,235,0.05);
}

.model-toggle input[type="checkbox"] {
  display: none;
}

.model-toggle .toggle-indicator {
  width: 16px; height: 16px;
  border-radius: 5px;
  border: 2px solid var(--text-muted);
  transition: background var(--transition), border-color var(--transition);
  flex-shrink: 0;
  position: relative;
}

.model-toggle input:checked + .toggle-indicator {
  border-color: transparent;
}

.model-toggle input:checked + .toggle-indicator::after {
  content: '✓';
  position: absolute;
  top: -1px; left: 2px;
  font-size: 11px;
  color: white;
  font-weight: 700;
}

.model-toggle .model-name {
  font-size: 0.82rem;
  color: var(--text-secondary);
  flex: 1;
}

.model-toggle .model-badge {
  font-size: 0.65rem;
  padding: 0.12rem 0.45rem;
  border-radius: 10px;
  background: rgba(37,99,235,0.07);
  color: var(--text-muted);
  font-weight: 500;
}

/* ===== Main Content ===== */
.main-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Chart container */
.chart-container {
  padding: 1.5rem;
  position: relative;
  flex: 1;
  min-height: 500px;
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.chart-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.chart-actions {
  display: flex;
  gap: 0.5rem;
}

.btn-icon {
  width: 34px; height: 34px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(37,99,235,0.05);
  border: 1px solid var(--border-glass);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.btn-icon:hover {
  background: var(--accent-glow);
  color: var(--accent);
  border-color: var(--border-active);
}

.btn-icon svg {
  width: 16px; height: 16px;
}

.chart-wrapper {
  position: relative;
  width: 100%;
  height: calc(100% - 50px);
  min-height: 440px;
}

/* Legend at bottom */
.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  padding: 1rem 1.5rem;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.legend-swatch {
  width: 20px; height: 3px;
  border-radius: 2px;
}

.legend-swatch.dashed {
  background: repeating-linear-gradient(90deg, currentColor 0, currentColor 4px, transparent 4px, transparent 8px);
  height: 2px;
}

/* ===== Loading ===== */
.loading-overlay {
  position: fixed; inset: 0;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  transition: opacity 0.4s ease;
}

.loading-overlay.fade-out {
  opacity: 0;
  pointer-events: none;
}

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

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

.loading-text {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ===== No data message ===== */
.no-data {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-muted);
  font-size: 0.9rem;
  flex-direction: column;
  gap: 0.5rem;
}



.model-toggle {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0.6rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background var(--transition);
  user-select: none;
}

.model-toggle:hover {
  background: rgba(37,99,235,0.05);
}

.model-toggle input[type="checkbox"] {
  display: none;
}

.model-toggle .toggle-indicator {
  width: 16px; height: 16px;
  border-radius: 5px;
  border: 2px solid var(--text-muted);
  transition: background var(--transition), border-color var(--transition);
  flex-shrink: 0;
  position: relative;
}

.model-toggle input:checked + .toggle-indicator {
  border-color: transparent;
  background: var(--accent);
}

.model-toggle input:checked + .toggle-indicator::after {
  content: '✓';
  position: absolute;
  top: -1px; left: 2px;
  font-size: 11px;
  color: white;
  font-weight: 700;
}

.model-toggle .model-name {
  font-size: 0.82rem;
  color: var(--text-secondary);
  flex: 1;
}

.model-toggle .model-badge {
  font-size: 0.65rem;
  padding: 0.12rem 0.45rem;
  border-radius: 10px;
  background: rgba(37,99,235,0.07);
  color: var(--text-muted);
  font-weight: 500;
}

/* ===== Main Content ===== */
.main-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Chart container */
.chart-container {
  padding: 1.5rem;
  position: relative;
  flex: 1;
  min-height: 500px;
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.chart-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.chart-actions {
  display: flex;
  gap: 0.5rem;
}

.btn-icon {
  width: 34px; height: 34px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(37,99,235,0.05);
  border: 1px solid var(--border-glass);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.btn-icon:hover {
  background: var(--accent-glow);
  color: var(--accent);
  border-color: var(--border-active);
}

.btn-icon svg {
  width: 16px; height: 16px;
}

.chart-wrapper {
  position: relative;
  width: 100%;
  height: calc(100% - 50px);
  min-height: 440px;
}

/* Legend at bottom */
.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  padding: 1rem 1.5rem;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.legend-swatch {
  width: 20px; height: 3px;
  border-radius: 2px;
}

.legend-swatch.dashed {
  background: repeating-linear-gradient(90deg, currentColor 0, currentColor 4px, transparent 4px, transparent 8px);
  height: 2px;
}

/* ===== Loading ===== */
.loading-overlay {
  position: fixed; inset: 0;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  transition: opacity 0.4s ease;
}

.loading-overlay.fade-out {
  opacity: 0;
  pointer-events: none;
}

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

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

.loading-text {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ===== No data message ===== */
.no-data {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-muted);
  font-size: 0.9rem;
  flex-direction: column;
  gap: 0.5rem;
}

.no-data svg {
  width: 40px; height: 40px;
  opacity: 0.3;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .app {
    grid-template-columns: 1fr;
    padding: 1rem;
  }

  .sidebar {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .sidebar .panel {
    flex: 1;
    min-width: 250px;
  }

  .chart-container {
    min-height: 400px;
  }

  .chart-wrapper {
    min-height: 340px;
  }
}

@media (max-width: 600px) {
  header h1 { font-size: 1.2rem; }

  .sidebar .panel {
    min-width: 100%;
  }

  .chart-container {
    padding: 1rem;
  }
}

/* --- Tabs Styling --- */
.tabs-container {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  padding: 6px;
  background: var(--bg-card);
  border: 1px solid rgba(0,0,0,0.1);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(var(--blur-md));
  width: fit-content;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.tab-btn {
  background: transparent;
  border: none;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 0.6rem 2.5rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  color: var(--text-primary);
  background: rgba(37,99,235,0.05);
}

.tab-btn.active {
  background: var(--accent);
  color: white;
  box-shadow: 0 4px 10px rgba(37,99,235,0.3);
}

/* --- View Sections --- */
.view-section {
  display: none;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.view-section.active {
  display: flex;
}

/* --- Map Container --- */
.map-container {
  flex: 1;
  min-height: 500px;
  display: flex;
  flex-direction: column;
  padding: var(--spacing-sm);
}

/* Ensure leaflet overrides match dark theme if possible */
.leaflet-container {
  background: transparent !important;
  font-family: inherit;
}
.leaflet-control-zoom-in, .leaflet-control-zoom-out {
  background-color: var(--bg-card) !important;
  color: var(--text-main) !important;
  border-color: var(--border-color) !important;
}
.leaflet-bar a:hover {
  background-color: rgba(255,255,255,0.1) !important;
}