/**
 * Duffel Flights - Premium Frontend Styles
 * Modern, responsive design for flight search and booking
 */

/* CSS Variables for consistent theming */
:root {
    --duffel-primary: #6366F1;
    --duffel-primary-dark: #4F46E5;
    --duffel-primary-light: #818CF8;
    --duffel-secondary: #8B5CF6;
    --duffel-success: #10B981;
    --duffel-warning: #F59E0B;
    --duffel-error: #EF4444;
    --duffel-text-primary: #1F2937;
    --duffel-text-secondary: #6B7280;
    --duffel-text-light: #9CA3AF;
    --duffel-bg-white: #FFFFFF;
    --duffel-bg-gray: #F9FAFB;
    --duffel-bg-gray-dark: #F3F4F6;
    --duffel-border: #E5E7EB;
    --duffel-border-dark: #D1D5DB;
    --duffel-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --duffel-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --duffel-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --duffel-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --duffel-radius-sm: 0.375rem;
    --duffel-radius-md: 0.5rem;
    --duffel-radius-lg: 0.75rem;
    --duffel-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Container */
.duffel-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Flight Search Form */
.duffel-search-widget {
    background: var(--duffel-bg-white);
    border-radius: var(--duffel-radius-lg);
    box-shadow: var(--duffel-shadow-lg);
    padding: 2rem;
    margin: 2rem 0;
    animation: fadeInUp 0.5s ease-out;
}

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

.duffel-search-header {
    text-align: center;
    margin-bottom: 2rem;
}

.duffel-search-header h2 {
    font-size: 2rem;
    color: var(--duffel-text-primary);
    margin: 0 0 0.5rem 0;
    font-weight: 700;
}

.duffel-search-header p {
    color: var(--duffel-text-secondary);
    margin: 0;
    font-size: 1.125rem;
}

/* Trip Type Selection */
.duffel-trip-type {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.duffel-trip-type-option {
    position: relative;
}

.duffel-trip-type-option input[type="radio"] {
    position: absolute;
    opacity: 0;
}

.duffel-trip-type-option label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--duffel-bg-gray);
    border: 2px solid transparent;
    border-radius: var(--duffel-radius-md);
    cursor: pointer;
    transition: var(--duffel-transition);
    font-weight: 500;
    color: var(--duffel-text-secondary);
}

.duffel-trip-type-option label:hover {
    background: var(--duffel-bg-gray-dark);
}

.duffel-trip-type-option input[type="radio"]:checked + label {
    background: var(--duffel-primary);
    color: white;
    border-color: var(--duffel-primary);
}

/* Search Form */
.duffel-search-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.duffel-form-group {
    position: relative;
}

.duffel-form-label {
    display: block;
    font-weight: 600;
    color: var(--duffel-text-primary);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.duffel-form-input {
    width: 100%;
    padding: 0.875rem 1rem;
    padding-left: 2.75rem;
    border: 2px solid var(--duffel-border);
    border-radius: var(--duffel-radius-md);
    font-size: 1rem;
    transition: var(--duffel-transition);
    background: var(--duffel-bg-white);
}

.duffel-form-input:focus {
    outline: none;
    border-color: var(--duffel-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.duffel-form-input.error {
    border-color: var(--duffel-error);
}

.duffel-form-icon {
    position: absolute;
    left: 1rem;
    top: 2.25rem;
    width: 1.25rem;
    height: 1.25rem;
    color: var(--duffel-text-secondary);
    pointer-events: none;
}

/* Date Inputs */
.duffel-date-input {
    cursor: pointer;
}

/* Passenger Select */
.duffel-passenger-select {
    cursor: pointer;
}

/* Airport Autocomplete */
.duffel-airport-autocomplete {
    position: relative;
}

.duffel-autocomplete-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--duffel-bg-white);
    border: 1px solid var(--duffel-border);
    border-top: none;
    border-radius: 0 0 var(--duffel-radius-md) var(--duffel-radius-md);
    max-height: 300px;
    overflow-y: auto;
    z-index: 1000;
    box-shadow: var(--duffel-shadow-lg);
    display: none;
}

.duffel-autocomplete-dropdown.active {
    display: block;
}

.duffel-autocomplete-item {
    padding: 0.875rem 1rem;
    cursor: pointer;
    transition: var(--duffel-transition);
    border-bottom: 1px solid var(--duffel-bg-gray);
}

.duffel-autocomplete-item:last-child {
    border-bottom: none;
}

.duffel-autocomplete-item:hover,
.duffel-autocomplete-item.selected {
    background: var(--duffel-bg-gray);
}

.duffel-autocomplete-item .airport-code {
    font-weight: 700;
    color: var(--duffel-primary);
    margin-right: 0.5rem;
}

.duffel-autocomplete-item .airport-name {
    color: var(--duffel-text-primary);
}

.duffel-autocomplete-item .airport-city {
    color: var(--duffel-text-secondary);
    font-size: 0.875rem;
}

/* Search Button */
.duffel-search-actions {
    text-align: center;
}

.duffel-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--duffel-primary), var(--duffel-secondary));
    color: white;
    border: none;
    border-radius: var(--duffel-radius-md);
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--duffel-transition);
    box-shadow: var(--duffel-shadow-md);
}

.duffel-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--duffel-shadow-xl);
}

.duffel-button:active {
    transform: translateY(0);
}

.duffel-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.duffel-button-secondary {
    background: var(--duffel-bg-white);
    color: var(--duffel-text-primary);
    border: 2px solid var(--duffel-border);
}

.duffel-button-secondary:hover {
    border-color: var(--duffel-primary);
    color: var(--duffel-primary);
}

/* Loading State */
.duffel-loading {
    text-align: center;
    padding: 3rem;
}

.duffel-spinner {
    display: inline-block;
    width: 3rem;
    height: 3rem;
    border: 3px solid var(--duffel-border);
    border-top-color: var(--duffel-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.duffel-loading-text {
    margin-top: 1rem;
    color: var(--duffel-text-secondary);
    font-size: 1.125rem;
}

/* Search Results */
.duffel-search-results {
    margin-top: 2rem;
}

.duffel-results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding: 0 1rem;
}

.duffel-results-count {
    font-size: 1.125rem;
    color: var(--duffel-text-primary);
    font-weight: 600;
}

.duffel-sort-options {
    display: flex;
    gap: 0.5rem;
}

.duffel-sort-button {
    padding: 0.5rem 1rem;
    background: var(--duffel-bg-gray);
    border: 1px solid var(--duffel-border);
    border-radius: var(--duffel-radius-sm);
    cursor: pointer;
    transition: var(--duffel-transition);
    font-size: 0.875rem;
}

.duffel-sort-button:hover {
    border-color: var(--duffel-primary);
    color: var(--duffel-primary);
}

.duffel-sort-button.active {
    background: var(--duffel-primary);
    color: white;
    border-color: var(--duffel-primary);
}

/* Flight Cards */
.duffel-flight-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.duffel-flight-card {
    background: var(--duffel-bg-white);
    border: 1px solid var(--duffel-border);
    border-radius: var(--duffel-radius-md);
    padding: 1.5rem;
    transition: var(--duffel-transition);
    cursor: pointer;
}

.duffel-flight-card:hover {
    border-color: var(--duffel-primary);
    box-shadow: var(--duffel-shadow-md);
}

.duffel-flight-header {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 1.5rem;
    align-items: center;
    margin-bottom: 1rem;
}

.duffel-airline-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.duffel-airline-logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.duffel-airline-name {
    font-weight: 500;
    color: var(--duffel-text-primary);
}

.duffel-flight-route {
    display: flex;
    align-items: center;
    gap: 1rem;
    justify-content: center;
}

.duffel-flight-time {
    text-align: center;
}

.duffel-flight-time .time {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--duffel-text-primary);
}

.duffel-flight-time .airport {
    font-size: 0.875rem;
    color: var(--duffel-text-secondary);
}

.duffel-flight-duration {
    text-align: center;
    color: var(--duffel-text-secondary);
    font-size: 0.875rem;
}

.duffel-flight-arrow {
    color: var(--duffel-text-light);
    font-size: 1.5rem;
}

.duffel-flight-price {
    text-align: right;
}

.duffel-price-amount {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--duffel-primary);
}

.duffel-price-currency {
    font-size: 1rem;
    color: var(--duffel-text-secondary);
}

.duffel-flight-details {
    display: flex;
    gap: 2rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--duffel-bg-gray);
    font-size: 0.875rem;
    color: var(--duffel-text-secondary);
}

.duffel-flight-stops {
    color: var(--duffel-success);
    font-weight: 500;
}

.duffel-flight-class {
    font-weight: 500;
}

/* Booking Form */
.duffel-booking-form {
    background: var(--duffel-bg-white);
    border-radius: var(--duffel-radius-lg);
    box-shadow: var(--duffel-shadow-lg);
    padding: 2rem;
    margin: 2rem 0;
}

.duffel-passenger-form {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--duffel-bg-gray);
    border-radius: var(--duffel-radius-md);
}

.duffel-passenger-form h3 {
    margin: 0 0 1rem 0;
    color: var(--duffel-text-primary);
}

.duffel-passenger-fields {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

/* Order Management */
.duffel-order-lookup {
    background: var(--duffel-bg-white);
    border-radius: var(--duffel-radius-md);
    box-shadow: var(--duffel-shadow-md);
    padding: 2rem;
    text-align: center;
}

.duffel-order-details {
    background: var(--duffel-bg-white);
    border-radius: var(--duffel-radius-md);
    box-shadow: var(--duffel-shadow-md);
    padding: 2rem;
    margin-top: 2rem;
}

/* Error Messages */
.duffel-message {
    padding: 1rem;
    border-radius: var(--duffel-radius-md);
    margin: 1rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.duffel-message-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--duffel-error);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.duffel-message-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--duffel-success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.duffel-message-info {
    background: rgba(99, 102, 241, 0.1);
    color: var(--duffel-primary);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

/* Responsive Design */
@media (max-width: 768px) {
    .duffel-search-widget {
        padding: 1.5rem;
    }
    
    .duffel-search-form {
        grid-template-columns: 1fr;
    }
    
    .duffel-trip-type {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .duffel-trip-type-option label {
        width: 100%;
        justify-content: center;
    }
    
    .duffel-flight-header {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .duffel-flight-route {
        flex-direction: column;
    }
    
    .duffel-results-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .duffel-flight-details {
        flex-direction: column;
        gap: 0.5rem;
    }
}

/* Animations */
.duffel-fade-in {
    animation: fadeIn 0.3s ease-out;
}

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

/* Focus Visible for Accessibility */
.duffel-form-input:focus-visible,
.duffel-button:focus-visible {
    outline: 2px solid var(--duffel-primary);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .duffel-search-widget {
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    .duffel-button {
        display: none;
    }
}

/* Theme Compatibility */
.duffel-search-widget * {
    box-sizing: border-box;
}

.duffel-search-widget input,
.duffel-search-widget select,
.duffel-search-widget button {
    font-family: inherit;
}

/* Loading Overlay */
.duffel-loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

/* Skeleton Loading */
.duffel-skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Custom Scrollbar */
.duffel-autocomplete-dropdown::-webkit-scrollbar {
    width: 8px;
}

.duffel-autocomplete-dropdown::-webkit-scrollbar-track {
    background: var(--duffel-bg-gray);
}

.duffel-autocomplete-dropdown::-webkit-scrollbar-thumb {
    background: var(--duffel-border-dark);
    border-radius: 4px;
}

.duffel-autocomplete-dropdown::-webkit-scrollbar-thumb:hover {
    background: var(--duffel-text-secondary);
}