/* Modern design system */
:root {
  /* Light mode colors */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f8fafc;
  --color-text-primary: #0f172a;
  --color-text-secondary: #475569;
  --color-border: #e2e8f0;
  --color-accent: #3b82f6;
  --color-accent-light: #60a5fa;
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --shadow-glow: 0 0 15px rgba(59, 130, 246, 0.5);
}

.dark {
  /* Dark mode colors */
  --color-bg-primary: #0f172a;
  --color-bg-secondary: #1e293b;
  --color-text-primary: #f8fafc;
  --color-text-secondary: #94a3b8;
  --color-border: #334155;
  --color-accent: #60a5fa;
  --color-accent-light: #93c5fd;
  --shadow-glow: 0 0 15px rgba(96, 165, 250, 0.3);
}

/* Base styles */
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

.app {
  min-height: 100vh;
  background-color: var(--color-bg-secondary);
  color: var(--color-text-primary);
  padding: max(env(safe-area-inset-top), 20px) max(env(safe-area-inset-right), 20px) max(env(safe-area-inset-bottom), 20px) max(env(safe-area-inset-left), 20px);
  transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header styles */
.main-header, .settings-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--color-border);
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  margin: 0;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.settings-button, .back-button {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.25rem;
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
}

.settings-button:hover, .back-button:hover {
  background-color: var(--color-bg-secondary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* Route grid and cards */
.routes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.route-button, .route-card {
  display: flex;
  align-items: center;
  padding: 1.5rem;
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  color: var(--color-text-primary);
}

.route-button {
  width: 100%;
  text-align: left;
}

.route-button:hover, .route-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
}

.line-icon {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.125rem;
  margin-right: 1.25rem;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}

.route-info {
  flex-grow: 1;
  min-width: 0;
}

.route-name {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  color: var(--color-text-primary);
}

.route-stations {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* Settings sections */
.settings-section {
  background-color: var(--color-bg-primary);
  border-radius: 1rem;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-md);
}

.settings-section h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 1rem;
  color: var(--color-text-primary);
}

.section-description {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}

/* Forms and inputs */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--color-text-primary);
}

.form-group input,
.station-search {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  background-color: var(--color-bg-secondary);
  color: var(--color-text-primary);
  font-size: 1rem;
  transition: all 0.2s ease;
}

.form-group input:focus,
.station-search:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Dropdowns */
.station-dropdown {
  margin-top: 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  background-color: var(--color-bg-primary);
  box-shadow: var(--shadow-md);
  max-height: 250px;
  overflow-y: auto;
}

.station-item {
  padding: 0.75rem 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  color: var(--color-text-primary);
}

.station-item:hover {
  background-color: var(--color-bg-secondary);
}

/* Buttons */
.primary-button, .save-button {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.5rem;
  background-color: var(--color-accent);
  color: white;
  border: none;
  border-radius: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.primary-button:hover, .save-button:hover {
  background-color: var(--color-accent-light);
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
}

.secondary-button, .cancel-button {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.5rem;
  background-color: var(--color-bg-secondary);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.secondary-button:hover, .cancel-button:hover {
  background-color: var(--color-border);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* Route actions */
.route-actions {
  display: flex;
  gap: 0.5rem;
}

.route-actions button {
  padding: 0.5rem;
  border: none;
  border-radius: 0.5rem;
  background-color: var(--color-bg-secondary);
  color: var(--color-text-primary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.route-actions button:hover {
  background-color: var(--color-border);
  transform: translateY(-1px);
}

.route-actions button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Dialog */
.route-dialog {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
  backdrop-filter: blur(4px);
}

.dialog-content {
  background-color: var(--color-bg-primary);
  border-radius: 1.5rem;
  padding: 2rem;
  width: 100%;
  max-width: 500px;
  box-shadow: var(--shadow-lg);
  animation: dialog-slide-up 0.3s ease-out;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  margin-top: 2rem;
}

@keyframes dialog-slide-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Footer */
.footer {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  border-top: 1px solid var(--color-border);
  margin-top: 2rem;
}

/* Utilities */
.hidden {
  display: none;
}

.no-routes {
  text-align: center;
  padding: 2rem;
  color: var(--color-text-secondary);
  font-size: 1rem;
}

/* Export actions */
.export-actions {
  display: flex;
  gap: 1rem;
}

/* Schedules container */
.schedules-container {
  background-color: var(--color-bg-primary);
  border-radius: 1.5rem;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  margin-top: 2rem;
}

.schedules-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem;
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg-primary);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(8px);
}

.station-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
  text-align: center;
  flex-grow: 1;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.last-updated {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  padding: 0.5rem 1rem;
  background-color: var(--color-bg-secondary);
  border-radius: 2rem;
}

.refresh-button {
  padding: 0.75rem;
  background-color: var(--color-bg-secondary);
  border: none;
  border-radius: 0.75rem;
  cursor: pointer;
  color: var(--color-text-primary);
  transition: all 0.2s ease;
}

.refresh-button:hover:not(:disabled) {
  background-color: var(--color-border);
  transform: translateY(-1px);
}

.refresh-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Train schedule list */
.schedules-list {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.train-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem;
  background-color: var(--color-bg-secondary);
  border-radius: 1rem;
  transition: all 0.2s ease;
  border: 1px solid var(--color-border);
}

.train-card:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.train-info {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.line-name {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
}

.destination {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
  color: var(--color-text-primary);
}

.train-details {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.train-details span {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.75rem;
  background-color: var(--color-bg-primary);
  border-radius: 1rem;
  border: 1px solid var(--color-border);
}

.time-info {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  text-align: right;
  min-width: 120px;
}

.departure-time,
.arrival-time {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.time-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
}

.departure-time,
.arrival-time {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
  font-variant-numeric: tabular-nums;
}

.delay {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  background-color: var(--color-warning);
  color: #000;
  border-radius: 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  margin-top: 0.5rem;
  justify-content: center;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .routes-grid {
    grid-template-columns: 1fr;
  }

  .dialog-content {
    margin: 1rem;
    padding: 1.5rem;
  }

  .route-actions {
    flex-wrap: wrap;
  }

  .train-card {
    grid-template-columns: auto 1fr;
    grid-template-areas:
      "icon info"
      "icon time";
    gap: 1rem;
  }

  .line-icon {
    grid-area: icon;
    margin: 0;
  }

  .train-info {
    grid-area: info;
  }

  .time-info {
    grid-area: time;
    text-align: left;
    flex-direction: row;
    align-items: center;
    gap: 1.5rem;
  }

  .delay {
    margin-top: 0;
  }
}

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

.animate-spin {
  animation: spin 1s linear infinite;
}