/* ============================================================
   CLASSIC TOURS - EXACT iOS RECREATION
   Colors, Fonts, Spacing Match iOS FeaturedToursView
   ============================================================ */

:root {
    --ct-bg-primary: #000000;
    --ct-text-primary: #FFFFFF;
    --ct-text-secondary: #B0B0B0;
    --ct-text-tertiary: #707070;
    --ct-accent-quaternary: #FFD60A;
    --ct-glass-bg: rgba(255, 255, 255, 0.03);
    --ct-glass-border: rgba(255, 255, 255, 0.08);

    --ct-radius-md: 12px;
    --ct-radius-lg: 16px;
    --ct-radius-xl: 20px;

    --ct-spacing-xs: 4px;
    --ct-spacing-sm: 8px;
    --ct-spacing-md: 16px;
    --ct-spacing-lg: 20px;
    --ct-spacing-xl: 24px;

    --ct-font-size-xs: 12px;
    --ct-font-size-sm: 14px;
    --ct-font-size-md: 16px;
    --ct-font-size-lg: 18px;
    --ct-font-size-xl: 28px;
}

/* ============================================================
   CONTAINER & VISIBILITY
   ============================================================ */

#classic-tours-view {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: calc(100% - 70px - var(--safe-area-bottom, 0px));
    background: var(--ct-bg-primary);
    display: none;
    flex-direction: column;
    z-index: 100;
    opacity: 0;
    transition: opacity 0.3s ease;
    overflow: hidden;
}

#classic-tours-view.active {
    display: flex;
    opacity: 1;
}

/* ============================================================
   HEADER (Lines 114-139 iOS)
   [Back] <---- "AI Guide Classics" ----> [QR Code]
   ============================================================ */

.classic-tours-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    padding: 0 var(--ct-spacing-lg);
    border-bottom: 1px solid var(--ct-glass-border);
    flex-shrink: 0;
    background: linear-gradient(180deg, rgba(10, 10, 12, 0.98) 0%, rgba(0, 0, 0, 0.95) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.classic-tours-back-btn,
.classic-tours-qr-btn {
    width: 44px;
    height: 44px;
    border: none;
    background: transparent;
    color: var(--ct-text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 600;
    transition: opacity 0.2s;
}

.classic-tours-back-btn:active,
.classic-tours-qr-btn:active {
    opacity: 0.6;
}

.classic-tours-back-btn::before {
    content: '‹';
    font-size: 28px;
}

.classic-tours-qr-btn::before {
    content: '◻';
    font-size: 20px;
    color: var(--ct-accent-quaternary);
}

.classic-tours-title {
    flex: 1;
    text-align: center;
    font-size: var(--ct-font-size-xl);
    font-weight: 700;
    background: linear-gradient(135deg, #ffffff 0%, rgba(255, 255, 255, 0.85) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================================
   SEARCH BAR (Lines 142-172 iOS)
   Icon + TextField + X button
   ============================================================ */

.classic-tours-search {
    display: flex;
    align-items: center;
    gap: var(--ct-spacing-sm);
    padding: 0 var(--ct-spacing-lg) var(--ct-spacing-sm) var(--ct-spacing-lg);
    flex-shrink: 0;
}

.classic-tours-search-icon {
    width: 16px;
    height: 16px;
    color: var(--ct-text-secondary);
    flex-shrink: 0;
    background: none;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
}

.classic-tours-search-icon::before {
    content: '🔍';
    font-size: 16px;
}

.classic-tours-search-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--ct-text-primary);
    font-size: var(--ct-font-size-md);
    outline: none;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
}

.classic-tours-search-input::placeholder {
    color: var(--ct-text-tertiary);
}

.classic-tours-clear-search {
    width: 20px;
    height: 20px;
    border: none;
    background: transparent;
    color: var(--ct-text-secondary);
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 0;
    flex-shrink: 0;
    font-size: 16px;
    transition: opacity 0.2s;
}

.classic-tours-clear-search:active {
    opacity: 0.6;
}

.classic-tours-clear-search::before {
    content: '✕';
    font-weight: 600;
}

/* Wrap search bar in glass style container */
.classic-tours-search {
    background: var(--ct-glass-bg);
    border: 1px solid var(--ct-glass-border);
    border-radius: var(--ct-radius-md);
    padding: var(--ct-spacing-md);
    margin: var(--ct-spacing-md) var(--ct-spacing-lg) var(--ct-spacing-sm) var(--ct-spacing-lg);
    gap: var(--ct-spacing-sm);
    transition: all 0.3s ease;
}

.classic-tours-search:focus-within {
    border-color: rgba(0, 102, 255, 0.5);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.15);
}

/* ============================================================
   TOURS LIST CONTAINER
   ============================================================ */

.classic-tours-list {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    -webkit-overflow-scrolling: touch;
}

/* ============================================================
   LOADING STATE
   ============================================================ */

.classic-tours-loading {
    display: none;
    flex: 1;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: var(--ct-spacing-lg);
}

.classic-tours-loading.active {
    display: flex;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--ct-glass-bg);
    border-top: 3px solid var(--ct-accent-quaternary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-spinner-small {
    width: 24px;
    height: 24px;
    border: 2px solid var(--ct-glass-bg);
    border-top: 2px solid var(--ct-accent-quaternary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ============================================================
   EMPTY STATE
   ============================================================ */

.classic-tours-empty-state {
    display: none;
    flex: 1;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--ct-spacing-lg);
    padding: var(--ct-spacing-lg);
}

.classic-tours-empty-state.active {
    display: flex;
}

.empty-state-icon {
    font-size: 60px;
    opacity: 0.5;
}

.empty-state-title {
    font-size: var(--ct-font-size-lg);
    font-weight: 600;
    color: var(--ct-text-primary);
    text-align: center;
}

.empty-state-description {
    font-size: var(--ct-font-size-sm);
    color: var(--ct-text-secondary);
    text-align: center;
    line-height: 1.4;
}

/* ============================================================
   TOURS GRID (Lines 48-82 iOS)
   LazyVStack with FeaturedTourCard
   ============================================================ */

.classic-tours-grid {
    display: none;
    grid-template-columns: 1fr;
    gap: var(--ct-spacing-md);
    padding: var(--ct-spacing-md) var(--ct-spacing-lg) var(--ct-spacing-xl) var(--ct-spacing-lg);
    width: 100%;
}

.classic-tours-grid.active {
    display: grid;
}

@media (min-width: 768px) {
    .classic-tours-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: var(--ct-spacing-lg);
    }
}

/* ============================================================
   FEATURED TOUR CARD (Lines 304-430 iOS)
   [Image 150px]
   [Title bold lg]
   [📍 City • Theme]
   [⏱ Duration 🚶 Distance          ⭐ FREE]
   ============================================================ */

.featured-tour-card {
    display: flex;
    flex-direction: column;
    border-radius: var(--ct-radius-lg);
    background: var(--ct-glass-bg);
    border: 1px solid var(--ct-glass-border);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
    transform: scale(1);
}

.featured-tour-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    border-color: rgba(0, 102, 255, 0.3);
}

.featured-tour-card:active {
    transform: translateY(-2px);
}

/* Image Container - 150px height */
.tour-card-image {
    width: 100%;
    height: 150px;
    background: var(--ct-glass-bg);
    border-bottom: 1px solid var(--ct-glass-border);
    overflow: hidden;
    position: relative;
}

.tour-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.tour-card-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--ct-glass-bg);
    color: var(--ct-text-tertiary);
}

/* Content Container */
.tour-card-content {
    display: flex;
    flex-direction: column;
    gap: var(--ct-spacing-xs);
    padding: var(--ct-spacing-md);
}

/* Title */
.tour-card-title {
    font-size: var(--ct-font-size-lg);
    font-weight: 700;
    color: var(--ct-text-primary);
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* City & Theme Meta */
.tour-card-meta {
    display: flex;
    align-items: center;
    gap: var(--ct-spacing-xs);
    font-size: var(--ct-font-size-sm);
    color: var(--ct-text-secondary);
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.meta-item svg {
    width: 12px;
    height: 12px;
    color: var(--ct-text-secondary);
}

.meta-separator {
    color: var(--ct-text-tertiary);
}

/* Stats Row */
.tour-card-stats {
    display: flex;
    align-items: center;
    gap: var(--ct-spacing-md);
    font-size: var(--ct-font-size-xs);
    color: var(--ct-text-tertiary);
    margin-top: var(--ct-spacing-xs);
}

.stat {
    display: flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}

.stat svg {
    width: 12px;
    height: 12px;
    color: var(--ct-text-tertiary);
}

/* Free Badge - Capsule with Quaternary accent */
.free-badge {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
    padding: 4px 8px;
    background: rgba(255, 214, 10, 0.1);
    border: 1px solid rgba(255, 214, 10, 0.3);
    border-radius: 20px;
    color: var(--ct-accent-quaternary);
    font-weight: 500;
    font-size: var(--ct-font-size-xs);
    white-space: nowrap;
}

.free-badge svg {
    width: 12px;
    height: 12px;
    color: var(--ct-accent-quaternary);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 767px) {
    .classic-tours-header {
        height: 56px;
        padding: 0 var(--ct-spacing-md);
    }

    .classic-tours-title {
        font-size: 24px;
    }

    .classic-tours-search {
        margin: var(--ct-spacing-sm) var(--ct-spacing-md);
    }

    .classic-tours-grid {
        grid-template-columns: 1fr;
        padding: var(--ct-spacing-sm) var(--ct-spacing-md) var(--ct-spacing-xl) var(--ct-spacing-md);
    }

    .featured-tour-card {
        border-radius: var(--ct-radius-lg);
    }

    .tour-card-image {
        height: 150px;
    }

    .tour-card-content {
        padding: var(--ct-spacing-sm);
        gap: var(--ct-spacing-xs);
    }

    .tour-card-title {
        font-size: 16px;
    }

    .tour-card-stats {
        font-size: 11px;
    }
}

/* ============================================================
   SCROLLBAR STYLING
   ============================================================ */

.classic-tours-list::-webkit-scrollbar {
    width: 6px;
}

.classic-tours-list::-webkit-scrollbar-track {
    background: transparent;
}

.classic-tours-list::-webkit-scrollbar-thumb {
    background: rgba(0, 102, 255, 0.3);
    border-radius: 3px;
}

.classic-tours-list::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 102, 255, 0.5);
}

/* ============================================================
   ANIMATIONS
   ============================================================ */

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

.featured-tour-card {
    animation: slideInUp 0.3s ease;
}

/* ============================================================
   PRINT & ACCESSIBILITY
   ============================================================ */

@media print {
    #classic-tours-view {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .featured-tour-card,
    .loading-spinner,
    .loading-spinner-small {
        animation: none;
        transition: none;
    }
}