/* Custom CSS for Flight Alert System */

/* CSS Variables for consistent theming */
:root {
    --primary-color: #0d6efd;
    --primary-dark: #0b5ed7;
    --success-color: #198754;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #0dcaf0;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --border-radius: 0.5rem;
    --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --box-shadow-lg: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

/* Global Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #f8f9fa;
}

/* Custom navbar styling */
.navbar-brand {
    font-weight: 600;
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: rgba(255, 255, 255, 0.8) !important;
}

/* Custom card styling */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: box-shadow 0.3s ease;
}

.card:hover {
    box-shadow: var(--box-shadow-lg);
}

.card-header {
    background-color: var(--light-color);
    border-bottom: 1px solid rgba(0, 0, 0, 0.125);
    font-weight: 600;
}

/* Button enhancements */
.btn {
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

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

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

/* Loading overlay */
#loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

#loading-overlay .spinner-border {
    width: 3rem;
    height: 3rem;
}

/* Form enhancements */
.form-control {
    border-radius: var(--border-radius);
    border: 1px solid #ced4da;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.input-group-text {
    background-color: var(--light-color);
    border: 1px solid #ced4da;
}

/* Table enhancements */
.table {
    border-radius: var(--border-radius);
    overflow: hidden;
}

.table thead th {
    background-color: var(--light-color);
    border-bottom: 2px solid #dee2e6;
    font-weight: 600;
}

.table-hover tbody tr:hover {
    background-color: rgba(13, 110, 253, 0.05);
}

/* Alert enhancements */
.alert {
    border: none;
    border-radius: var(--border-radius);
    border-left: 4px solid;
}

.alert-primary {
    border-left-color: var(--primary-color);
}

.alert-success {
    border-left-color: var(--success-color);
}

.alert-warning {
    border-left-color: var(--warning-color);
}

.alert-danger {
    border-left-color: var(--danger-color);
}

.alert-info {
    border-left-color: var(--info-color);
}

/* Badge enhancements */
.badge {
    font-weight: 500;
    padding: 0.5em 0.75em;
}

/* Progress bar enhancements */
.progress {
    border-radius: var(--border-radius);
    background-color: #e9ecef;
}

.progress-bar {
    border-radius: var(--border-radius);
}

/* Dropdown enhancements */
.dropdown-menu {
    border: none;
    box-shadow: var(--box-shadow-lg);
    border-radius: var(--border-radius);
}

.dropdown-item {
    transition: background-color 0.3s ease;
}

.dropdown-item:hover {
    background-color: rgba(13, 110, 253, 0.1);
}

/* List group enhancements */
.list-group-item {
    border: none;
    border-bottom: 1px solid rgba(0, 0, 0, 0.125);
    transition: background-color 0.3s ease;
}

.list-group-item:hover {
    background-color: rgba(13, 110, 253, 0.05);
}

.list-group-item:last-child {
    border-bottom: none;
}

/* Notification badge */
#notification-badge {
    position: relative;
    top: -2px;
    font-size: 0.7rem;
    min-width: 1.2rem;
    height: 1.2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Flight search results */
.flight-result {
    transition: all 0.3s ease;
    cursor: pointer;
}

.flight-result:hover {
    background-color: rgba(13, 110, 253, 0.05);
    transform: translateY(-1px);
}

.price-highlight {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--success-color);
}

.airline-logo {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    object-fit: cover;
}

/* Alert status indicators */
.alert-status {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.alert-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.alert-status-active .alert-status-dot {
    background-color: var(--success-color);
    animation: pulse 2s infinite;
}

.alert-status-paused .alert-status-dot {
    background-color: var(--warning-color);
}

.alert-status-error .alert-status-dot {
    background-color: var(--danger-color);
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(25, 135, 84, 0.4);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(25, 135, 84, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(25, 135, 84, 0);
    }
}

/* DataTables customization */
.dataTables_wrapper .dataTables_length,
.dataTables_wrapper .dataTables_filter,
.dataTables_wrapper .dataTables_info,
.dataTables_wrapper .dataTables_paginate {
    margin-top: 1rem;
}

.dataTables_wrapper .dataTables_filter input {
    border-radius: var(--border-radius);
    border: 1px solid #ced4da;
    padding: 0.375rem 0.75rem;
}

.dataTables_wrapper .dataTables_paginate .paginate_button {
    border-radius: var(--border-radius) !important;
    margin: 0 2px;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current {
    background-color: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
    color: white !important;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .card-body {
        padding: 1.5rem 1rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
    
    .display-4 {
        font-size: 2.5rem;
    }
    
    .table-responsive {
        border-radius: var(--border-radius);
    }
}

/* Print styles */
@media print {
    .navbar,
    .btn,
    .alert,
    #loading-overlay {
        display: none !important;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    .container {
        max-width: none;
        padding: 0;
    }
}

/* Dark mode support (if needed in the future) */
@media (prefers-color-scheme: dark) {
    /* Dark mode styles would go here */
}

/* Animation classes for JavaScript interactions */
.fadeIn {
    animation: fadeIn 0.5s ease-in;
}

.fadeOut {
    animation: fadeOut 0.5s ease-out;
}

.slideDown {
    animation: slideDown 0.3s ease-out;
}

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

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

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Utility classes */
.cursor-pointer {
    cursor: pointer;
}

.user-select-none {
    user-select: none;
}

.text-truncate-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.text-truncate-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Accessibility improvements */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus styles for better accessibility */
.btn:focus,
.form-control:focus,
.form-select:focus,
.form-check-input:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .card {
        border: 2px solid var(--dark-color);
    }
    
    .btn {
        border-width: 2px;
    }
}