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

:root {
    /* Color Palette */
    --bg-primary: #0a0a0f;
    --bg-secondary: #13131a;
    --bg-card: rgba(30, 30, 40, 0.7);
    --bg-glass: rgba(255, 255, 255, 0.05);
    
    --text-primary: #ffffff;
    --text-secondary: #b4b4c8;
    --text-muted: #6e6e8a;
    
    --accent-primary: #c44be8;
    --accent-secondary: #6366f1;
    --accent-gradient: linear-gradient(135deg, #c44be8 0%, #6366f1 50%, #3b82f6 100%);
    
    --overlay-dark: rgba(0, 0, 0, 0.8);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(196, 75, 232, 0.3);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    padding-bottom: 70px;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #d65ff0, #7477f7);
}

/* ========================================
   Header
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: var(--spacing-sm);
    z-index: 100;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    font-size: 2rem;
    filter: drop-shadow(0 0 10px rgba(196, 75, 232, 0.5));
}

.search-btn {
    background: var(--bg-glass);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-btn:hover {
    background: var(--accent-gradient);
    transform: scale(1.05);
    box-shadow: var(--shadow-glow);
}

/* ========================================
   Main Content
   ======================================== */
.main-content {
    margin-top: 80px;
    min-height: calc(100vh - 150px);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.section-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Page Transitions */
.page {
    display: none;
    opacity: 0;
    animation: fadeIn 0.3s ease forwards;
}

.page.active {
    display: block;
}

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

/* ========================================
   Drama Grid
   ======================================== */
.drama-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.drama-card {
    position: relative;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
}

.drama-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    border-color: var(--accent-primary);
}

.drama-card-image {
    width: 100%;
    aspect-ratio: 2/3;
    object-fit: cover;
    display: block;
}

.drama-card-content {
    padding: var(--spacing-sm);
}

.drama-card-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    line-height: 1.4;
}

.drama-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.drama-card-episodes {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.drama-card-badge {
    background: var(--accent-gradient);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Loading Skeleton */
.skeleton {
    background: linear-gradient(90deg, #1a1a24 25%, #25253a 50%, #1a1a24 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

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

/* ========================================
   Video Player Page
   ======================================== */
.video-page {
    position: relative;
    padding: 0;
}

.back-btn {
    position: fixed;
    top: 80px;
    left: var(--spacing-sm);
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.back-btn:hover {
    background: var(--accent-gradient);
    transform: scale(1.1);
    box-shadow: var(--shadow-glow);
}

.video-container {
    max-width: 500px;
    margin: 0 auto var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.video-player {
    width: 100%;
    aspect-ratio: 9/16;
    background: #000;
    display: block;
}

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

.video-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.video-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

/* Episodes Section */
.episodes-section {
    padding: 0 var(--spacing-sm) var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.episodes-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.episodes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: var(--spacing-sm);
}

.episode-btn {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition-fast);
    text-align: center;
}

.episode-btn:hover {
    background: var(--accent-gradient);
    transform: scale(1.05);
    box-shadow: var(--shadow-glow);
}

.episode-btn.active {
    background: var(--accent-gradient);
    box-shadow: var(--shadow-glow);
}

/* ========================================
   Bottom Navigation
   ======================================== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: var(--spacing-xs) 0;
    display: flex;
    justify-content: space-around;
    z-index: 100;
}

.nav-item {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 0.5rem 1rem;
    transition: all var(--transition-fast);
    flex: 1;
}

.nav-item svg {
    transition: all var(--transition-fast);
}

.nav-item span {
    font-size: 0.75rem;
    font-weight: 500;
}

.nav-item.active {
    color: var(--accent-primary);
}

.nav-item.active svg {
    filter: drop-shadow(0 0 8px rgba(196, 75, 232, 0.6));
}

.nav-item:hover {
    color: var(--accent-primary);
}

/* ========================================
   Search Modal
   ======================================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 200;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.modal.active {
    display: block;
    opacity: 1;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--overlay-dark);
    backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    max-width: 600px;
    margin: 80px auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.search-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.search-input {
    flex: 1;
    background: var(--bg-glass);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(196, 75, 232, 0.2);
}

.close-modal-btn {
    background: var(--bg-glass);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 1.5rem;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-modal-btn:hover {
    background: rgba(255, 0, 0, 0.2);
    border-color: rgba(255, 0, 0, 0.5);
}

/* Search History */
.search-history {
    padding: var(--spacing-md);
    max-height: 400px;
    overflow-y: auto;
}

.search-history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.search-history-header h4 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.clear-search-history-btn {
    background: none;
    border: none;
    color: var(--accent-primary);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.clear-search-history-btn:hover {
    opacity: 0.8;
}

.search-history-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.search-history-item {
    background: var(--bg-glass);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.search-history-item:hover {
    background: var(--bg-card);
    border-color: var(--accent-primary);
}

.search-history-item svg {
    width: 16px;
    height: 16px;
    color: var(--text-muted);
}

/* ========================================
   Buttons & Controls
   ======================================== */
.load-more-btn,
.clear-history-btn {
    background: var(--accent-gradient);
    border: none;
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    margin: var(--spacing-md) auto;
    display: block;
    box-shadow: var(--shadow-md);
}

.load-more-btn:hover,
.clear-history-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.clear-history-btn {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* History Header */
.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

/* Empty State */
.empty-state {
    display: none;
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
}

.empty-state.visible {
    display: block;
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-state p {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.empty-state span {
    color: var(--text-secondary);
}

/* Search Query Display */
.search-query {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-size: 0.9rem;
}

/* ========================================
   Loading Overlay
   ======================================== */
.loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(10px);
    z-index: 300;
    align-items: center;
    justify-content: center;
}

.loading-overlay.active {
    display: flex;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
    .drama-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: var(--spacing-sm);
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .modal-content {
        margin: var(--spacing-md);
        max-width: calc(100% - 2rem);
    }
    
    .episodes-grid {
        grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    }
}

@media (max-width: 480px) {
    .drama-card-title {
        font-size: 0.9rem;
    }
    
    .drama-card-meta {
        font-size: 0.75rem;
    }
    
    .logo {
        font-size: 1.25rem;
    }
}