/* Modern Flight Data Styling */

:root {
  /* Color Palette */
  --primary: #4361ee;
  --primary-dark: #3a56d4;
  --secondary: #4cc9f0;
  --accent: #f72585;
  --accent-light: #ff8fab;
  --light: #f8f9fa;
  --dark: #212529;
  --gray-100: #f8f9fa;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-400: #ced4da;
  --gray-500: #adb5bd;
  --gray-800: #343a40;
  
  /* Spacing */
  --spacer: 1rem;
  
  /* Shadows */
  --shadow-sm: 0 .125rem .25rem rgba(0,0,0,.075);
  --shadow: 0 .5rem 1rem rgba(0,0,0,.15);
  --shadow-lg: 0 1rem 3rem rgba(0,0,0,.175);
  
  /* Border Radius */
  --radius: 0.5rem;
  --radius-sm: 0.25rem;
  --radius-lg: 1rem;
}

/* Base Styles */
body {
  font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--dark);
  background: linear-gradient(135deg, var(--gray-100) 0%, var(--light) 100%);
  margin: 0;
  padding: 0;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: calc(var(--spacer) * 2);
}

/* Header Styles */
.header {
  background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
  padding: calc(var(--spacer) * 2) var(--spacer);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.header::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 200%;
  background: rgba(255, 255, 255, 0.1);
  transform: rotate(30deg);
  pointer-events: none;
}

.header h1 {
  margin: 0;
  font-size: 2.5rem;
  font-weight: 700;
  position: relative;
  z-index: 1;
}

.header .subtitle {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-top: 0.5rem;
  position: relative;
  z-index: 1;
}

/* Navigation Bar */
.navbar {
  background-color: var(--light);
  padding: var(--spacer);
  box-shadow: var(--shadow-sm);
  margin-bottom: calc(var(--spacer) * 2);
  border-radius: 0 0 var(--radius) var(--radius);
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary);
  text-decoration: none;
  display: flex;
  align-items: center;
}

.logo i {
  margin-right: 0.5rem;
}

.breadcrumb {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.breadcrumb li {
  display: flex;
  align-items: center;
}

.breadcrumb li:not(:last-child):after {
  content: '›';
  margin: 0 0.5rem;
  color: var(--gray-500);
}

.breadcrumb a {
  color: var(--primary);
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

/* Card Styles */
.card {
  background-color: white;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: calc(var(--spacer) * 2);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.card-header {
  padding: calc(var(--spacer) * 1.5) var(--spacer);
  background-color: var(--gray-100);
  border-bottom: 1px solid var(--gray-300);
}

.card-title {
  margin: 0;
  font-size: 1.25rem;
  color: var(--primary-dark);
}

.card-body {
  padding: calc(var(--spacer) * 1.5) var(--spacer);
}

/* Form Controls */
.form-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacer);
  margin-bottom: var(--spacer);
  align-items: center;
}

.control-group {
  display: flex;
  align-items: center;
  background-color: white;
  border-radius: var(--radius-sm);
  padding: 0.5rem 1rem;
  box-shadow: var(--shadow-sm);
}

label {
  font-weight: 600;
  color: var(--gray-800);
  margin-right: 0.5rem;
}

select, 
button {
  appearance: none;
  background-color: white;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  padding: 0.5rem 1rem;
  font-family: inherit;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='8' viewBox='0 0 8 8'%3E%3Cpath fill='%23343a40' d='M2 0l4 4-4 4z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 8px;
  padding-right: 2rem;
}

select:focus,
button:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.25);
}

.btn {
  display: inline-block;
  font-weight: 500;
  text-align: center;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  background-color: var(--primary);
  color: white;
  border: none;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.btn:hover {
  background-color: var(--primary-dark);
}

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

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

/* Table Styles */
table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: var(--spacer) 0;
  background-color: white;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

thead {
  background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
}

th {
  text-align: left;
  padding: 1rem;
  font-weight: 600;
  border-bottom: 2px solid rgba(255, 255, 255, 0.2);
}

td {
  padding: 1rem;
  border-bottom: 1px solid var(--gray-200);
  transition: background-color 0.2s;
}

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

tbody tr:hover td {
  background-color: var(--gray-100);
}

/* Special cells */
.numeric {
  text-align: right;
  font-family: monospace;
  font-size: 0.9rem;
}

.price {
  font-weight: 700;
}

.route-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.route-link:hover {
  text-decoration: underline;
}

.route-link i {
  margin-left: 5px;
  transition: transform 0.2s;
}

.route-link:hover i {
  transform: translateX(4px);
}

/* Chart Styles */
.chart-container {
  width: 97%;
  height: 400px;
  background-color: white;
  border-radius: var(--radius);
  padding: var(--spacer);
  box-shadow: var(--shadow);
  margin-bottom: calc(var(--spacer) * 2);
}

/* Badge Styles */
.badge {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  border-radius: 30px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-primary {
  background-color: var(--primary);
  color: white;
}

.badge-secondary {
  background-color: var(--secondary);
  color: white;
}

.badge-economy {
  background-color: #4cc9f0;
  color: white;
}

.badge-business {
  background-color: #f72585;
  color: white;
}

/* Footer Styles */
.footer {
  background-color: var(--gray-800);
  color: white;
  padding: calc(var(--spacer) * 2) var(--spacer);
  margin-top: calc(var(--spacer) * 3);
  text-align: center;
}

.footer a {
  color: var(--secondary);
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
  .header h1 {
    font-size: 2rem;
  }
  
  .form-group {
    flex-direction: column;
    align-items: stretch;
  }
  
  .card {
    margin-left: -1rem;
    margin-right: -1rem;
    border-radius: 0;
  }
  
  th, td {
    padding: 0.75rem 0.5rem;
  }
  
  .container {
    padding: var(--spacer);
  }
}

/* Loading Animation */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: var(--primary);
  animation: spin 1s ease-in-out infinite;
}

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

/* Add some animated elements */
.fade-in {
  animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.slide-in {
  animation: slideIn 0.5s ease-out;
}

@keyframes slideIn {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}