/**
 * Domestic Flight Booking System - Frontend Styles
 * Modern, travel-inspired design with smooth interactions
 */

/* CSS Variables - Theming */
:root {
	--dfb-primary: #0066cc;
	--dfb-primary-dark: #004fa3;
	--dfb-primary-light: #e6f0ff;
	--dfb-secondary: #1ab394;
	--dfb-accent: #ff6b54;
	--dfb-danger: #e74c3c;
	--dfb-dark: #2c3e50;
	--dfb-light: #ecf0f1;
	--dfb-border: #bdc3c7;
	--dfb-success: #27ae60;
	--dfb-text: #34495e;
	--dfb-background: #f8f9fa;
	
	--dfb-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
	--dfb-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
	--dfb-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
	
	--dfb-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
	--dfb-radius: 8px;
}

/* Reset and Base Styles */
.dfb-booking-container * {
	box-sizing: border-box;
}

.dfb-booking-container {
	font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
	color: var(--dfb-text);
	background-color: var(--dfb-background);
	padding: 20px;
}

.dfb-booking-wrapper {
	max-width: 900px;
	margin: 0 auto;
	background: white;
	border-radius: var(--dfb-radius);
	box-shadow: var(--dfb-shadow-lg);
	overflow: hidden;
	animation: slideUp 0.5s ease-out;
}

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

/* Progress Indicator */
.dfb-progress-indicator {
	display: flex;
	justify-content: space-between;
	background: linear-gradient(135deg, var(--dfb-primary) 0%, var(--dfb-primary-dark) 100%);
	padding: 20px;
	position: relative;
}

.dfb-progress-indicator::after {
	content: '';
	position: absolute;
	top: 50%;
	left: 0;
	right: 0;
	height: 2px;
	background: rgba(255, 255, 255, 0.3);
	transform: translateY(-50%);
	z-index: 0;
}

.dfb-progress-step {
	flex: 1;
	text-align: center;
	position: relative;
	z-index: 1;
	opacity: 0.6;
	transition: var(--dfb-transition);
	cursor: pointer;
}

.dfb-progress-step.active,
.dfb-progress-step.completed {
	opacity: 1;
}

.dfb-progress-number {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 36px;
	height: 36px;
	background: white;
	color: var(--dfb-primary);
	border-radius: 50%;
	font-weight: bold;
	margin-bottom: 8px;
	box-shadow: var(--dfb-shadow-sm);
	transition: var(--dfb-transition);
}

.dfb-progress-step.active .dfb-progress-number {
	background: var(--dfb-secondary);
	color: white;
	transform: scale(1.1);
}

.dfb-progress-step.completed .dfb-progress-number {
	background: var(--dfb-success);
	color: white;
}

.dfb-progress-step.completed .dfb-progress-number::after {
	content: '✓';
}

.dfb-progress-label {
	display: block;
	color: white;
	font-size: 12px;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.5px;
}

/* Steps */
.dfb-step {
	display: none;
	padding: 40px;
	animation: fadeIn 0.3s ease-out;
	opacity: 0;
}

.dfb-step.dfb-active {
	display: block;
	animation: fadeIn 0.3s ease-out forwards;
}

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

.dfb-step h2 {
	color: var(--dfb-dark);
	font-size: 28px;
	margin: 0 0 30px 0;
	font-weight: 700;
	display: flex;
	align-items: center;
	gap: 12px;
}

.dfb-step h2::before {
	content: '';
	display: inline-block;
	width: 4px;
	height: 28px;
	background: var(--dfb-primary);
	border-radius: 2px;
}

/* Destination Selection */
.dfb-destinations-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
	gap: 20px;
	margin-top: 20px;
}

.dfb-destination-card {
	background: white;
	border: 2px solid var(--dfb-light);
	border-radius: var(--dfb-radius);
	padding: 20px;
	cursor: pointer;
	transition: var(--dfb-transition);
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	min-height: 250px;
	position: relative;
	overflow: hidden;
}

.dfb-destination-card::before {
	content: '✈️';
	position: absolute;
	font-size: 60px;
	top: -10px;
	right: -10px;
	opacity: 0.1;
	transition: var(--dfb-transition);
}

.dfb-destination-card:hover {
	border-color: var(--dfb-primary);
	box-shadow: var(--dfb-shadow-md);
	transform: translateY(-4px);
}

.dfb-destination-card:hover::before {
	transform: translate(-10px, 10px) rotate(15deg);
	opacity: 0.2;
}

.dfb-destination-content h3 {
	color: var(--dfb-primary);
	font-size: 20px;
	margin: 0 0 10px 0;
	font-weight: 600;
}

.dfb-destination-content p {
	color: var(--dfb-text);
	font-size: 14px;
	line-height: 1.6;
	margin: 0;
	flex-grow: 1;
}

/* Date Selection */
.dfb-date-selection {
	margin-top: 20px;
}

#dfb-calendar-container {
	background: var(--dfb-background);
	padding: 20px;
	border-radius: var(--dfb-radius);
	border: 1px solid var(--dfb-light);
}

.dfb-calendar {
	display: grid;
	grid-template-columns: repeat(7, 1fr);
	gap: 8px;
}

.dfb-calendar-date {
	aspect-ratio: 1;
	display: flex;
	align-items: center;
	justify-content: center;
	border: 1px solid var(--dfb-border);
	border-radius: 6px;
	cursor: pointer;
	transition: var(--dfb-transition);
	font-weight: 500;
	font-size: 14px;
	background: white;
}

.dfb-calendar-date:hover:not(:disabled) {
	background: var(--dfb-primary-light);
	border-color: var(--dfb-primary);
}

.dfb-calendar-date.selected {
	background: var(--dfb-primary);
	color: white;
	border-color: var(--dfb-primary);
	box-shadow: var(--dfb-shadow-sm);
}

.dfb-calendar-date:disabled {
	opacity: 0.4;
	cursor: not-allowed;
	background: var(--dfb-light);
}

/* Seat Selection */
.dfb-seat-selection {
	background: var(--dfb-background);
	padding: 20px;
	border-radius: var(--dfb-radius);
	border: 1px solid var(--dfb-light);
}

#dfb-seat-map-container {
	margin-bottom: 30px;
	padding: 20px;
	background: white;
	border-radius: 6px;
	border: 1px solid var(--dfb-light);
	text-align: center;
}

.dfb-seat-map {
	display: inline-block;
	margin: 0 auto;
}

.dfb-seat-row {
	display: flex;
	gap: 8px;
	margin-bottom: 8px;
	align-items: center;
	position: relative;
}

.dfb-seat-row.dfb-emergency-row {
	margin: 12px 0;
	padding: 8px 0;
	border-top: 1px dashed var(--dfb-primary);
	border-bottom: 1px dashed var(--dfb-primary);
}

.dfb-seat-row.dfb-emergency-exit {
	justify-content: space-between;
	padding: 12px 0;
	margin-top: 20px;
	border-top: 2px solid var(--dfb-accent);
	color: var(--dfb-accent);
	font-weight: 700;
	font-size: 12px;
	text-transform: uppercase;
}

.dfb-emergency-text {
	color: var(--dfb-accent);
	font-weight: 700;
	font-size: 11px;
	text-transform: uppercase;
	letter-spacing: 1px;
}

.dfb-seat-row-label {
	width: 30px;
	font-weight: 600;
	color: var(--dfb-primary);
	font-size: 12px;
	text-transform: uppercase;
}

.dfb-seat {
	width: 40px;
	height: 40px;
	border: 2px solid var(--dfb-border);
	border-radius: 4px;
	cursor: pointer;
	transition: var(--dfb-transition);
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 11px;
	font-weight: 600;
	background: white;
	color: var(--dfb-text);
	position: relative;
	overflow: hidden;
	box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
	padding: 0;
}

.dfb-seat-inner {
	position: relative;
	z-index: 2;
}

.dfb-seat.available {
	background: linear-gradient(135deg, #f0f8ff 0%, #e6f0ff 100%);
	border-color: var(--dfb-primary);
	color: var(--dfb-primary);
}

.dfb-seat.available::before {
	content: '';
	position: absolute;
	top: -50%;
	left: -50%;
	width: 200%;
	height: 200%;
	background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 70%);
	z-index: 1;
}

.dfb-seat.available:hover {
	background: linear-gradient(135deg, #d4e6f7 0%, #c0d9f0 100%);
	box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1), 0 0 0 3px var(--dfb-primary-light);
	transform: scale(1.1);
}

.dfb-seat.selected {
	background: linear-gradient(135deg, var(--dfb-primary) 0%, var(--dfb-primary-dark) 100%);
	border-color: var(--dfb-primary-dark);
	color: white;
	box-shadow: 0 4px 12px rgba(0, 102, 204, 0.4), inset 0 1px 3px rgba(0, 0, 0, 0.2);
	transform: scale(1.05);
}

.dfb-seat.selected::after {
	content: '✓';
	position: absolute;
	right: 3px;
	top: 1px;
	font-size: 14px;
	color: rgba(255, 255, 255, 0.9);
	z-index: 3;
}

.dfb-seat.booked {
	background: linear-gradient(135deg, #e8e8e8 0%, #d4d4d4 100%);
	border-color: var(--dfb-border);
	color: var(--dfb-border);
	cursor: not-allowed;
	opacity: 0.6;
	box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.15);
}

/* Time Picker Modal */
.dfb-time-picker {
	background: white;
	border-radius: 8px;
	padding: 20px;
	text-align: center;
}

.dfb-time-picker h4 {
	color: var(--dfb-primary);
	margin: 0 0 20px 0;
	font-size: 18px;
}

.dfb-time-options {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
	gap: 12px;
	margin-bottom: 20px;
}

.dfb-time-option {
	background: white;
	border: 2px solid var(--dfb-primary-light);
	border-radius: 6px;
	padding: 15px;
	cursor: pointer;
	transition: var(--dfb-transition);
	display: flex;
	flex-direction: column;
	gap: 8px;
	text-align: center;
}

.dfb-time-option:not(:disabled):hover {
	background: var(--dfb-primary-light);
	border-color: var(--dfb-primary);
	transform: translateY(-2px);
	box-shadow: var(--dfb-shadow-md);
}

.dfb-time-option:disabled {
	opacity: 0.5;
	cursor: not-allowed;
	background: var(--dfb-light);
}

.dfb-time-option .dfb-time {
	font-weight: 700;
	color: var(--dfb-primary);
	font-size: 18px;
}

.dfb-time-option .dfb-aircraft {
	font-size: 12px;
	color: #666;
	text-transform: uppercase;
}

.dfb-time-option .dfb-seats-info {
	font-size: 12px;
	color: var(--dfb-secondary);
	font-weight: 600;
}

.dfb-cancel-time-picker {
	background: white;
	color: var(--dfb-primary);
	border: 2px solid var(--dfb-primary);
}

.dfb-cancel-time-picker:hover {
	background: var(--dfb-primary-light);
}

.dfb-trip-count {
	display: block;
	font-size: 10px;
	color: var(--dfb-accent);
	text-transform: uppercase;
	font-weight: 700;
	letter-spacing: 0.5px;
}

.dfb-date-num {
	display: block;
	font-weight: 700;
	font-size: 16px;
}

/* Airplane Seat Map */
#dfb-seat-map-container {
	position: relative;
	background: linear-gradient(135deg, #f0f8ff 0%, #e6f0ff 100%);
	border: 2px solid var(--dfb-primary);
	border-radius: 12px;
}

#dfb-seat-map-container::before {
	content: '✈️';
	position: absolute;
	top: 10px;
	left: 50%;
	transform: translateX(-50%);
	font-size: 32px;
	opacity: 0.1;
	z-index: 0;
}

.dfb-seat-map {
	position: relative;
	z-index: 1;
	padding: 40px 20px 20px 20px;
}

.dfb-seat-map::before {
	content: '';
	position: absolute;
	top: 0;
	left: 50%;
	transform: translateX(-50%);
	width: 90%;
	max-width: 300px;
	height: 40px;
	background: linear-gradient(180deg, transparent 0%, rgba(0, 102, 204, 0.05) 100%);
	border-radius: 0 0 20px 20px;
	z-index: 0;
}

.dfb-seat-map::after {
	content: 'COCKPIT';
	position: absolute;
	top: 8px;
	left: 50%;
	transform: translateX(-50%);
	font-size: 10px;
	font-weight: 700;
	color: var(--dfb-primary);
	opacity: 0.3;
	text-transform: uppercase;
	letter-spacing: 1px;
	z-index: 1;
}

/* Seat Legend */
.dfb-seat-legend {
	display: flex;
	justify-content: center;
	gap: 30px;
	margin-bottom: 20px;
	padding: 15px;
	background: var(--dfb-light);
	border-radius: 6px;
	flex-wrap: wrap;
}

.dfb-legend-item {
	display: flex;
	align-items: center;
	gap: 8px;
	font-size: 14px;
	color: var(--dfb-text);
}

.dfb-seat-legend-icon {
	width: 20px;
	height: 20px;
	border: 1px solid var(--dfb-border);
	border-radius: 3px;
}

.dfb-seat-legend-icon.available {
	background: #f0f8ff;
	border-color: var(--dfb-primary);
}

.dfb-seat-legend-icon.selected {
	background: var(--dfb-primary);
	border-color: var(--dfb-primary);
}

.dfb-seat-legend-icon.booked {
	background: var(--dfb-light);
	border-color: var(--dfb-border);
}

/* Selected Seats Display */
.dfb-selected-seats {
	background: white;
	padding: 15px;
	border-radius: 6px;
	border: 2px solid var(--dfb-secondary);
}

.dfb-selected-seats h4 {
	margin: 0 0 10px 0;
	color: var(--dfb-secondary);
	font-size: 14px;
	text-transform: uppercase;
	letter-spacing: 0.5px;
}

#dfb-selected-seats-list {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
}

.dfb-selected-seat-tag {
	background: var(--dfb-secondary);
	color: white;
	padding: 6px 12px;
	border-radius: 20px;
	font-size: 13px;
	font-weight: 600;
	animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
	from {
		opacity: 0;
		transform: scale(0.8);
	}
	to {
		opacity: 1;
		transform: scale(1);
	}
}

/* Form Styles */
.dfb-form-group {
	margin-bottom: 20px;
	display: flex;
	flex-direction: column;
}

.dfb-form-group label {
	color: var(--dfb-dark);
	font-weight: 600;
	margin-bottom: 8px;
	font-size: 14px;
}

.dfb-form-group .required {
	color: var(--dfb-danger);
}

.dfb-form-group input,
.dfb-form-group textarea {
	padding: 12px 15px;
	border: 2px solid var(--dfb-light);
	border-radius: 6px;
	font-family: inherit;
	font-size: 14px;
	transition: var(--dfb-transition);
	color: var(--dfb-text);
	background: white;
}

.dfb-form-group input:focus,
.dfb-form-group textarea:focus {
	outline: none;
	border-color: var(--dfb-primary);
	box-shadow: 0 0 0 3px var(--dfb-primary-light);
	background: white;
}

.dfb-form-group input::placeholder,
.dfb-form-group textarea::placeholder {
	color: #bbb;
}

/* Button Styles */
.dfb-btn {
	padding: 12px 24px;
	border: none;
	border-radius: 6px;
	font-weight: 600;
	cursor: pointer;
	transition: var(--dfb-transition);
	font-size: 14px;
	text-transform: uppercase;
	letter-spacing: 0.5px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	position: relative;
	overflow: hidden;
}

.dfb-btn::before {
	content: '';
	position: absolute;
	top: 50%;
	left: 50%;
	width: 0;
	height: 0;
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.3);
	transform: translate(-50%, -50%);
	transition: width 0.6s, height 0.6s;
}

.dfb-btn:hover::before {
	width: 300px;
	height: 300px;
}

.dfb-btn-primary {
	background: linear-gradient(135deg, var(--dfb-primary) 0%, var(--dfb-primary-dark) 100%);
	color: white;
	box-shadow: var(--dfb-shadow-md);
}

.dfb-btn-primary:hover {
	transform: translateY(-2px);
	box-shadow: var(--dfb-shadow-lg);
}

.dfb-btn-primary:active {
	transform: translateY(0);
	box-shadow: var(--dfb-shadow-sm);
}

.dfb-btn-secondary {
	background: white;
	color: var(--dfb-primary);
	border: 2px solid var(--dfb-primary);
}

.dfb-btn-secondary:hover {
	background: var(--dfb-primary-light);
}

.dfb-btn-lg {
	padding: 15px 32px;
	font-size: 16px;
	width: 100%;
}

.dfb-select-destination {
	background: linear-gradient(135deg, var(--dfb-primary) 0%, var(--dfb-primary-dark) 100%);
	color: white;
	padding: 8px 16px;
	border: none;
	border-radius: 4px;
	cursor: pointer;
	font-weight: 600;
	font-size: 12px;
	transition: var(--dfb-transition);
	margin-top: auto;
}

.dfb-select-destination:hover {
	transform: scale(1.05);
	box-shadow: var(--dfb-shadow-md);
}

/* Navigation */
.dfb-navigation {
	display: flex;
	gap: 12px;
	padding: 20px 40px;
	background: var(--dfb-background);
	border-top: 1px solid var(--dfb-light);
	justify-content: space-between;
}

#dfb-prev-step:disabled,
#dfb-next-step:disabled {
	opacity: 0.5;
	cursor: not-allowed;
	transform: none !important;
}

/* Modal Styles */
.dfb-modal {
	display: none;
	position: fixed;
	z-index: 1000;
	left: 0;
	top: 0;
	width: 100%;
	height: 100%;
	background-color: rgba(0, 0, 0, 0.5);
	animation: fadeIn 0.3s ease-out;
}

.dfb-modal.show {
	display: flex;
	align-items: center;
	justify-content: center;
}

.dfb-modal-content {
	background-color: white;
	padding: 30px;
	border-radius: var(--dfb-radius);
	box-shadow: var(--dfb-shadow-lg);
	position: relative;
	max-width: 500px;
	width: 90%;
	animation: slideUp 0.3s ease-out;
}

.dfb-modal-close {
	position: absolute;
	right: 20px;
	top: 20px;
	font-size: 28px;
	font-weight: bold;
	color: var(--dfb-text);
	cursor: pointer;
	transition: var(--dfb-transition);
	width: 30px;
	height: 30px;
	display: flex;
	align-items: center;
	justify-content: center;
}

.dfb-modal-close:hover {
	color: var(--dfb-primary);
	transform: rotate(90deg);
}

#dfb-modal-message {
	font-size: 16px;
	line-height: 1.6;
	color: var(--dfb-text);
}

#dfb-modal-message.success {
	color: var(--dfb-success);
}

#dfb-modal-message.error {
	color: var(--dfb-danger);
}

/* Responsive Design */
@media (max-width: 768px) {
	.dfb-booking-wrapper {
		border-radius: 0;
	}

	.dfb-step {
		padding: 20px;
	}

	.dfb-step h2 {
		font-size: 22px;
	}

	.dfb-destinations-grid {
		grid-template-columns: 1fr;
	}

	.dfb-seat-map {
		transform: scale(0.85);
		transform-origin: center top;
	}

	.dfb-progress-indicator {
		padding: 15px;
	}

	.dfb-progress-label {
		font-size: 10px;
	}

	.dfb-navigation {
		flex-direction: column;
		padding: 15px 20px;
	}

	.dfb-btn {
		width: 100%;
	}

	.dfb-seat-legend {
		gap: 15px;
	}
}

/* Loading States */
.dfb-loading {
	position: relative;
	pointer-events: none;
	opacity: 0.6;
}

.dfb-loading::after {
	content: '';
	position: absolute;
	top: 50%;
	left: 50%;
	width: 20px;
	height: 20px;
	margin-left: -10px;
	margin-top: -10px;
	border: 3px solid var(--dfb-primary-light);
	border-top-color: var(--dfb-primary);
	border-radius: 50%;
	animation: spin 0.6s linear infinite;
}

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

/* Success/Error States */
.dfb-success-message {
	background: #d4edda;
	border: 1px solid #c3e6cb;
	color: #155724;
	padding: 15px;
	border-radius: 6px;
	margin-bottom: 15px;
	animation: slideDown 0.3s ease-out;
}

.dfb-error-message {
	background: #f8d7da;
	border: 1px solid #f5c6cb;
	color: #721c24;
	padding: 15px;
	border-radius: 6px;
	margin-bottom: 15px;
	animation: shake 0.3s ease-out;
}

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

@keyframes shake {
	0%, 100% { transform: translateX(0); }
	25% { transform: translateX(-5px); }
	75% { transform: translateX(5px); }
}

/* Badge Styles */
.badge {
	display: inline-block;
	padding: 4px 12px;
	border-radius: 20px;
	font-size: 12px;
	font-weight: 600;
	text-transform: uppercase;
}

.badge-active {
	background: #d4edda;
	color: #155724;
}

.badge-inactive {
	background: #f8d7da;
	color: #721c24;
}

.badge-available {
	background: #d1ecf1;
	color: #0c5460;
}

.badge-full {
	background: #f8d7da;
	color: #721c24;
}

.badge-cancelled {
	background: #e2e3e5;
	color: #383d41;
}

.badge-pending {
	background: #fff3cd;
	color: #856404;
}

.badge-confirmed {
	background: #d4edda;
	color: #155724;
}

.badge-rejected {
	background: #f8d7da;
	color: #721c24;
}