/* Base Styles and Variables */
:root {
    /* Color Palette */
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --gray-light: #f5f5f5;
    --gray-medium: #e0e0e0;
    --gray-dark: #9e9e9e;
    
    /* Typography */
    --heading-font: 'Playfair Display', serif;
    --body-font: 'Montserrat', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--body-font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--heading-font);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-lg);
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-color);
}

ul, ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

img {
    max-width: 100%;
    height: auto;
}

/* Container Layout */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    max-width: 1400px;
    margin: 0 auto;
    background-color: #fff;
    box-shadow: var(--shadow-lg);
}

/* Header Styles */
.header {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-lg) var(--spacing-xl);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.profile-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.profile-image {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid white;
    box-shadow: var(--shadow-md);
}

.profile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-info h1 {
    color: white;
    margin-bottom: var(--spacing-xs);
    font-size: 1.8rem;
}

.profile-info p {
    margin-bottom: var(--spacing-xs);
    font-weight: 300;
}

.travel-dates {
    font-weight: 500;
    color: var(--gray-medium);
}

.header-actions {
    display: flex;
    gap: var(--spacing-md);
}

/* Main Content Area */
.main-content {
    flex: 1;
    padding: var(--spacing-xl);
    background-color: white;
}

/* Navigation Menu */
.page-navigation {
    position: sticky;
    top: 100px;
    z-index: 90;
    background-color: white;
    box-shadow: var(--shadow-md);
    margin: 0 -2rem var(--spacing-xl) -2rem;
    padding: 0 var(--spacing-xl);
}

.page-navigation ul {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
    overflow-x: auto;
}

.page-navigation li {
    margin: 0;
    padding: 0;
}

.page-navigation .nav-link {
    display: block;
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--gray-dark);
    font-weight: 500;
    border-bottom: 3px solid transparent;
    white-space: nowrap;
}

.page-navigation .nav-link:hover {
    color: var(--secondary-color);
}

.page-navigation .nav-link.active {
    color: var(--secondary-color);
    border-bottom: 3px solid var(--secondary-color);
}

/* Content Sections */
.content-section {
    margin-bottom: var(--spacing-xxl);
    padding-top: var(--spacing-xl);
    scroll-margin-top: 160px;
}

.section-header {
    margin-bottom: var(--spacing-xl);
}

.section-header h2 {
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    color: var(--gray-dark);
    font-size: 1.1rem;
}

/* Introduction Section */
.trip-summary {
    margin-top: var(--spacing-xl);
}

.trip-stats {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-box {
    flex: 1;
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.trip-map {
    margin-bottom: var(--spacing-xl);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    height: 500px;
}

#interactive-map {
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* Custom Map Markers */
.custom-map-marker {
    background: transparent;
}

.marker-content {
    background-color: var(--primary-color);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-weight: bold;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.3);
}

.plane-icon {
    background: transparent;
}

.plane {
    font-size: 24px;
    filter: drop-shadow(0 1px 3px rgba(0,0,0,0.3));
}

/* Map Legend */
.map-legend {
    background: white;
    padding: 10px;
    border-radius: 5px;
    box-shadow: 0 1px 5px rgba(0,0,0,0.2);
}

.map-legend h4 {
    margin: 0 0 10px 0;
    font-size: 16px;
}

.legend-item {
    margin-bottom: 5px;
    font-size: 14px;
    display: flex;
    align-items: center;
}

.legend-marker {
    margin-right: 5px;
}

.legend-line {
    display: inline-block;
    width: 20px;
    height: 3px;
    background-color: #e74c3c;
    margin-right: 5px;
}

.legend-plane {
    margin-right: 5px;
}

.confirmed-schedule {
    background-color: var(--gray-light);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
}

.schedule-list {
    list-style: none;
    padding: 0;
}

.schedule-list li {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--gray-medium);
    display: flex;
    align-items: center;
}

.schedule-list li:last-child {
    border-bottom: none;
}

.date {
    font-weight: 600;
    min-width: 80px;
}

.location {
    font-weight: 500;
    color: var(--secondary-color);
    margin-right: var(--spacing-md);
}

.detail {
    font-style: italic;
    color: var(--gray-dark);
}

/* Flights Section */
.flight-segments {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.flight-segment {
    background-color: white;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.segment-header {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    font-weight: 600;
}

.flight-options {
    padding: var(--spacing-md);
}

.flight-option {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--gray-medium);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.flight-option:last-child {
    border-bottom: none;
}

.flight-option:hover {
    background-color: var(--gray-light);
}

.flight-option.selected {
    background-color: rgba(52, 152, 219, 0.1);
    border-left: 4px solid var(--secondary-color);
}

.flight-radio {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray-dark);
    border-radius: 50%;
    outline: none;
    cursor: pointer;
    position: relative;
}

.flight-radio:checked {
    border-color: var(--secondary-color);
}

.flight-radio:checked::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--secondary-color);
}

.flight-details {
    flex: 1;
}

.flight-airline {
    font-weight: 600;
}

.flight-times {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xs);
}

.flight-departure, .flight-arrival {
    font-size: 0.9rem;
}

.flight-duration {
    color: var(--gray-dark);
    font-size: 0.9rem;
}

.flight-price {
    font-weight: 600;
    color: var(--accent-color);
}

/* Hotels Section */
.hotel-filters, .activity-filters {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--gray-light);
    border: none;
    border-radius: var(--border-radius-sm);
    font-family: var(--body-font);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    background-color: var(--gray-medium);
}

.filter-btn.active {
    background-color: var(--secondary-color);
    color: white;
}

.hotel-destinations {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.hotel-destination {
    margin-bottom: var(--spacing-xl);
}

.destination-header {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--gray-medium);
}

.hotel-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.hotel-card {
    background-color: white;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-fast);
    cursor: pointer;
}

.hotel-card:hover {
    transform: translateY(-5px);
}

.hotel-card.selected {
    border: 2px solid var(--secondary-color);
}

.hotel-image {
    height: 200px;
    overflow: hidden;
}

.hotel-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-medium);
}

.hotel-card:hover .hotel-image img {
    transform: scale(1.05);
}

.hotel-info {
    padding: var(--spacing-md);
}

.hotel-name {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.hotel-name a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.hotel-name a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

.hotel-category {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--primary-color);
    color: white;
    font-size: 0.8rem;
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-sm);
}

.hotel-category.ultra {
    background-color: #8e44ad;
}

.hotel-category.luxury {
    background-color: #2980b9;
}

.hotel-category.good {
    background-color: #27ae60;
}

.hotel-description {
    font-size: 0.9rem;
    color: var(--gray-dark);
    margin-bottom: var(--spacing-sm);
}

.hotel-features {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.hotel-feature {
    font-size: 0.8rem;
    color: var(--gray-dark);
}

/* Activities Section */
.activity-destinations {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.activity-destination {
    margin-bottom: var(--spacing-xl);
}

.activity-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.activity-item {
    background-color: white;
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: all var(--transition-fast);
}

.activity-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.activity-image {
    width: 80px;
    height: 80px;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    flex-shrink: 0;
}

.activity-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.activity-checkbox {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray-dark);
    border-radius: var(--border-radius-sm);
    outline: none;
    cursor: pointer;
    position: relative;
}

.activity-checkbox:checked {
    border-color: var(--secondary-color);
    background-color: var(--secondary-color);
}

.activity-checkbox:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 14px;
}

.activity-details {
    flex: 1;
}

.activity-name {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.activity-name a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.activity-name a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

.activity-type {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.8rem;
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-sm);
}

.activity-type.business {
    background-color: #3498db;
    color: white;
}

.activity-type.cultural {
    background-color: #9b59b6;
    color: white;
}

.activity-type.dining {
    background-color: #e67e22;
    color: white;
}

.activity-type.leisure {
    background-color: #2ecc71;
    color: white;
}

.activity-description {
    font-size: 0.9rem;
    color: var(--gray-dark);
}

/* Itinerary Section */
.itinerary-controls {
    display: flex;
    justify-content: flex-start;
    margin-bottom: var(--spacing-lg);
    align-items: center;
    gap: var(--spacing-md);
}

.itinerary-container {
    margin-top: var(--spacing-lg);
}

.itinerary-day {
    margin-bottom: var(--spacing-lg);
    background-color: white;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.day-header {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.day-title {
    font-weight: 600;
    margin: 0;
}

.day-location {
    font-weight: 400;
    font-style: italic;
    margin-left: var(--spacing-sm);
}

.day-toggle {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 1.2rem;
}

.day-content {
    padding: var(--spacing-lg);
    display: none;
    background-color: white;
    border: 1px solid var(--gray-medium);
    border-top: none;
    border-radius: 0 0 var(--border-radius-md) var(--border-radius-md);
}

.day-content.expanded {
    display: block;
    animation: fadeIn 0.3s ease;
}

.itinerary-item {
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--gray-medium);
    background-color: var(--gray-light);
    border-radius: var(--border-radius-sm);
}

.itinerary-item:last-child {
    margin-bottom: 0;
    padding-bottom: var(--spacing-md);
    border-bottom: none;
}

.item-time {
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-xs);
}

.item-title {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.item-details {
    font-size: 0.9rem;
    color: var(--gray-dark);
}

.itinerary-section-header {
    background-color: var(--secondary-color);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    margin: var(--spacing-md) 0 var(--spacing-sm) 0;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.itinerary-section-header i {
    font-size: 1.2rem;
}

.selected-flight, .selected-hotel, .selected-activity {
    background-color: rgba(52, 152, 219, 0.1);
    border-left: 3px solid var(--secondary-color);
    padding-left: var(--spacing-md);
    margin-top: var(--spacing-sm);
    transition: transform var(--transition-fast);
}

.selected-flight:hover, .selected-hotel:hover, .selected-activity:hover {
    transform: translateX(5px);
}

.selected-flight .item-title a,
.selected-hotel .item-title a,
.selected-activity .item-title a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.selected-flight .item-title a:hover,
.selected-hotel .item-title a:hover,
.selected-activity .item-title a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius-md);
    font-family: var(--body-font);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    gap: var(--spacing-sm);
}

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

.btn-primary:hover {
    background-color: #2980b9;
}

.btn-secondary {
    background-color: var(--gray-light);
    color: var(--dark-color);
}

.btn-secondary:hover {
    background-color: var(--gray-medium);
}

.btn-small {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.9rem;
}

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-lg);
    text-align: center;
}

.footer-content p {
    margin: 0;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal.active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background-color: white;
    border-radius: var(--border-radius-md);
    padding: var(--spacing-xl);
    max-width: 800px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-lg);
}

.close-modal {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-dark);
    transition: color var(--transition-fast);
}

.close-modal:hover {
    color: var(--accent-color);
}

.pdf-preview {
    margin: var(--spacing-lg) 0;
    border: 1px solid var(--gray-medium);
    padding: var(--spacing-md);
    min-height: 400px;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

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

/* Responsive Styles */
@media (max-width: 1024px) {
    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .header-actions {
        width: 100%;
        justify-content: flex-start;
    }
    
    .hotel-cards {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .profile-section {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .page-navigation {
        overflow-x: auto;
    }
    
    .trip-stats {
        flex-direction: column;
    }
    
    .hotel-cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .header, .main-content {
        padding: var(--spacing-md);
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.9rem;
    }
    
    .header-actions {
        flex-direction: column;
    }
    
    .modal-content {
        padding: var(--spacing-md);
    }
}

/* Travel Reminders Section */
.reminders-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(500px, 1fr));
    gap: var(--spacing-xl);
}

.reminder-card {
    background-color: white;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-lg);
    transition: transform var(--transition-fast);
}

.reminder-card:hover {
    transform: translateY(-5px);
}

.reminder-icon {
    font-size: 2.5rem;
    color: var(--secondary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
}

.reminder-content {
    flex: 1;
}

.reminder-content h3 {
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.reminder-content ul {
    margin-bottom: 0;
}

.reminder-content ul li {
    margin-bottom: var(--spacing-sm);
}

.reminder-content ul li:last-child {
    margin-bottom: 0;
}

.reminder-content ul li ul {
    margin-top: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
}

/* Print Styles */
@media print {
    .header-actions, .page-navigation, .itinerary-controls, .modal {
        display: none !important;
    }
    
    .app-container {
        box-shadow: none;
    }
    
    .main-content {
        padding: 0;
    }
    
    .content-section {
        display: block !important;
        page-break-inside: avoid;
    }
    
    .day-content {
        display: block !important;
    }
    
    @page {
        margin: 1cm;
    }
}