@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
    /* Light Theme */
    --primary-color: #6366f1; /* Indigo */
    --primary-color-hover: #4f46e5;
    --primary-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    --background-color: #f8fafc;
    --card-background: #ffffff;
    --text-color: #0f172a;
    --light-text-color: #64748b;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --hover-color: #f1f5f9;
    --scrollbar-track-color: transparent;
    --sidebar-bg: rgba(255, 255, 255, 0.75);
    --glass-border: 1px solid rgba(255, 255, 255, 0.5);

    --card-background-rgb: 255, 255, 255;
    --skeleton-base-color: hsl(210, 20%, 94%);
    --skeleton-shine-color: hsl(210, 20%, 98%);
}

html[data-theme="dark"] {
    /* Dark Theme - Deep & Premium */
    --primary-color: #818cf8;
    --primary-color-hover: #6366f1;
    --primary-gradient: linear-gradient(135deg, #818cf8 0%, #c084fc 100%);
    --background-color: #0f172a; /* Slate 900 */
    --card-background: #1e293b; /* Slate 800 */
    --text-color: #f8fafc;
    --light-text-color: #94a3b8;
    --border-color: #334155;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.2);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.3), 0 2px 4px -1px rgba(0,0,0,0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.4), 0 4px 6px -2px rgba(0,0,0,0.2);
    --hover-color: #334155;
    --scrollbar-track-color: #0f172a;
    --sidebar-bg: rgba(30, 41, 59, 0.85);
    --glass-border: 1px solid rgba(255, 255, 255, 0.05);

    --card-background-rgb: 30, 41, 59;
    --skeleton-base-color: hsl(215, 25%, 20%);
    --skeleton-shine-color: hsl(215, 25%, 26%);
}

/* Smooth Scrolling & Base Settings */
html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    background-color: var(--background-color);
    color: var(--text-color);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

a {
    text-decoration: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--light-text-color);
    border-radius: 10px;
    opacity: 0.5;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

#app {
    display: flex;
    min-height: 100vh;
}

/* --- Sidebar (Glassmorphism) --- */
.sidebar {
    width: 260px;
    background-color: var(--sidebar-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: var(--glass-border);
    display: flex;
    flex-direction: column;
    padding: 30px 20px;
    box-sizing: border-box;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    height: 100vh;
    z-index: 100;
}

.sidebar-header {
    text-align: center;
    margin-bottom: 3rem;
}

.sidebar-header h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

.sidebar-nav .nav-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px 20px;
    text-decoration: none;
    color: var(--light-text-color);
    border-radius: 12px;
    margin-bottom: 8px;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.sidebar-nav .nav-item svg {
    width: 22px;
    height: 22px;
    transition: transform 0.3s ease;
}

.sidebar-nav .nav-item:hover {
    background-color: var(--hover-color);
    color: var(--text-color);
    transform: translateX(4px);
}

.sidebar-nav .nav-item.active {
    background: var(--primary-gradient);
    color: #fff;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 122, 255, 0.3);
}

.sidebar-nav .nav-item.active svg {
    transform: scale(1.1);
}

/* --- Main Content --- */
.main-content {
    flex-grow: 1;
    padding: 40px 60px;
    box-sizing: border-box;
    overflow-y: auto;
    max-width: 1600px;
    /* Limit max width for large screens */
    margin: 0 auto;
}

/* --- Header --- */
.page-header {
    margin-bottom: 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-toggle-tabs {
    background-color: var(--hover-color);
    border-radius: 12px;
    padding: 4px;
    display: inline-flex;
    gap: 4px;
}

.header-toggle-tabs .tab-button {
    cursor: default;
    padding: 8px 20px;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--light-text-color);
    transition: all 0.3s ease;
}

.tab-button.active {
    background-color: var(--card-background);
    color: var(--text-color);
    box-shadow: var(--shadow-sm);
    font-weight: 600;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-button {
    background: var(--card-background);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    cursor: pointer;
    padding: 10px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.header-button:hover {
    background-color: var(--hover-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

#login-button {
    width: auto;
    padding: 0 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

/* Theme Switcher Animation */
.header-button svg {
    position: absolute;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.icon-moon {
    opacity: 0;
    transform: rotate(-90deg) scale(0.5);
}

html[data-theme="dark"] .icon-sun {
    opacity: 0;
    transform: rotate(90deg) scale(0.5);
}

html[data-theme="dark"] .icon-moon {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

/* 专用：调整搜索按钮图标尺寸与定位，避免影响主题切换按钮（叠放两图标） */
#search-button {
    width: 44px;
    height: 44px;
    padding: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

#search-button svg {
    /* 取消绝对定位以使用 flex 居中，同时限定图标尺寸 */
    position: static;
    width: 18px;
    height: 18px;
}

/* --- Tags Nav --- */
.tags-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 3rem;
}

.tags-nav button {
    padding: 8px 20px;
    border: 1px solid var(--border-color);
    background-color: var(--card-background);
    color: var(--text-color);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: var(--shadow-sm);
}

.tags-nav button:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.tags-nav button.active {
    background: var(--primary-gradient);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(0, 122, 255, 0.3);
}

/* --- Movie Cards & Lists --- */
.home-section {
    margin-bottom: 4rem;
}

.home-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.home-section-title {
    font-size: 1.6rem;
    font-weight: 700;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.home-section-title::before {
    content: '';
    display: block;
    width: 6px;
    height: 24px;
    background: var(--primary-gradient);
    border-radius: 3px;
}

.view-more-link {
    font-size: 0.9rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: gap 0.2s ease;
}

.view-more-link:hover {
    gap: 8px;
}

.view-more-link::after {
    content: '→';
    font-size: 1.1em;
}

.movie-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 30px;
}

.horizontal-scroll-list {
    display: flex;
    overflow-x: auto;
    gap: 24px;
    padding: 10px 5px 20px 5px;
    /* Padding for shadow bloom */
    -webkit-overflow-scrolling: touch;
}

.movie-card {
    background-color: var(--card-background);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    cursor: pointer;
    border: 1px solid var(--border-color);
}

.horizontal-scroll-list .movie-card {
    width: 200px;
    flex-shrink: 0;
}

.movie-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 15px 30px -5px rgba(99, 102, 241, 0.3), 0 8px 10px -5px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.movie-card img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}

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

.movie-info {
    padding: 16px;
    background: var(--card-background);
    position: relative;
    z-index: 1;
}

.movie-info .title {
    font-weight: 600;
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 1rem;
    margin-bottom: 6px;
}

.movie-info .rate {
    color: #FF9500;
    /* iOS Orange */
    font-size: 0.85rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
}

.movie-info .rate::before {
    content: '★';
    font-size: 1rem;
}

.movie-rating-top-right {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: #f8fafc;
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    z-index: 2;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 4px;
}
.movie-rating-top-right::before {
    content: '★';
    color: #fbbf24;
    font-size: 0.9rem;
}

.detail-info-section {
    background: var(--card-background);
    border-radius: 20px;
    padding: 36px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.detail-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 24px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 20px;
}

.detail-header h1 {
    margin: 0;
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-color);
    letter-spacing: -0.5px;
}

.action-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: 1.5px solid var(--border-color);
    background: var(--card-background);
    color: var(--text-color);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
}

.action-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 122, 255, 0.15);
}

.action-btn.active {
    background: var(--primary-gradient);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 16px rgba(0, 122, 255, 0.35);
}

.detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 24px;
}

.meta-tag {
    background: var(--hover-color);
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--light-text-color);
    font-weight: 500;
    border: 1px solid transparent;
    transition: all 0.2s ease;
}

.meta-tag:hover {
    background: var(--border-color);
    border-color: var(--primary-color);
}

.detail-desc {
    margin-bottom: 0;
    line-height: 1.8;
    color: var(--text-color);
    font-size: 1rem;
    opacity: 0.9;
}

.detail-desc p {
    margin: 0;
}

/* 播放器和选集并排布局 */
.player-and-episodes-section {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
    align-items: stretch;
    margin-bottom: 40px;
}

.video-player-section {
    display: flex;
    flex-direction: column;
}

.player-container {
    width: 100%;
    background: #000;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
    height: 600px;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.player-placeholder {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.player-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.6));
    z-index: 1;
}

.play-overlay {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    color: white;
    text-align: center;
}

.play-overlay svg {
    opacity: 0.95;
    filter: drop-shadow(0 6px 12px rgba(0, 0, 0, 0.4));
    transition: transform 0.3s ease;
}

.play-overlay:hover svg {
    transform: scale(1.1);
}

.play-overlay p {
    font-size: 1.15rem;
    font-weight: 500;
    text-shadow: 0 3px 6px rgba(0, 0, 0, 0.6);
    margin: 0;
    letter-spacing: 0.5px;
}

.episode-list-section {
    background: var(--card-background);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    height: 600px;
    display: flex;
    flex-direction: column;
}

.episode-list-section h3 {
    margin-top: 0;
    margin-bottom: 16px;
    font-size: 1.2rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-color);
    flex-shrink: 0;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-color);
}

.episode-list-section h3::before {
    content: '';
    display: block;
    width: 4px;
    height: 18px;
    background: var(--primary-gradient);
    border-radius: 2px;
}

.episode-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(75px, 1fr));
    gap: 8px;
    overflow-y: auto;
    flex: 1;
    align-content: flex-start;
    padding: 8px 4px 4px 4px;
}

/* 自定义滚动条 */
.episode-grid::-webkit-scrollbar {
    width: 6px;
}

.episode-grid::-webkit-scrollbar-track {
    background: var(--hover-color);
    border-radius: 3px;
}

.episode-grid::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 3px;
}

.episode-btn {
    padding: 10px 8px;
    background: var(--hover-color);
    border: 1px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-color);
    transition: all 0.2s ease;
    font-weight: 500;
    height: fit-content;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.episode-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 122, 255, 0.2);
}

.episode-btn.active {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 12px rgba(0, 122, 255, 0.4);
    font-weight: 600;
    border-color: var(--primary-color);
}

/* --- Search & Mobile Nav --- */
#mobile-nav {
    display: none;
}

.search-page-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 2rem;
}

#search-input {
    flex-grow: 1;
    padding: 12px 20px;
    font-size: 1rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background-color: var(--card-background);
    color: var(--text-color);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    outline: none;
}

#search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

html[data-theme="dark"] #search-input:focus {
    box-shadow: 0 0 0 3px rgba(129, 140, 248, 0.25);
}

#search-button-page {
    padding: 0 25px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 10px;
    border: none;
    background: var(--primary-gradient);
    color: white;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
}

#search-button-page:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* --- Responsive Design --- */
@media (max-width: 768px) {
    .sidebar {
        display: none;
    }

    .main-content {
        padding: 20px 16px 100px 16px;
    }

    .page-header {
        margin-bottom: 2rem;
    }

    .page-header h1 {
        font-size: 1.4rem;
    }

    .movie-list {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }

    .movie-card img {
        height: 160px;
    }

    .horizontal-scroll-list .movie-card {
        width: 140px;
    }

    .horizontal-scroll-list .movie-card img {
        height: 200px;
    }

    /* Mobile Nav */
    #mobile-nav {
        display: flex;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background: var(--sidebar-bg);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-top: var(--glass-border);
        justify-content: space-around;
        padding: 12px 0 24px 0;
        /* Extra padding for iOS home indicator */
        z-index: 1000;
        box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.05);
    }

    .mobile-nav-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        text-decoration: none;
        color: var(--light-text-color);
        font-size: 0.7rem;
        gap: 4px;
        transition: all 0.2s;
    }

    .mobile-nav-item svg {
        width: 24px;
        height: 24px;
    }

    .mobile-nav-item.active {
        color: var(--primary-color);
        transform: translateY(-2px);
    }
    
    .mobile-nav-item.active svg {
        transform: scale(1.1);
        filter: drop-shadow(0 2px 4px rgba(99, 102, 241, 0.4));
    }

    /* Detail Mobile */
    .player-and-episodes-section {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .player-container {
        height: auto;
        aspect-ratio: 16 / 9;
    }

    .episode-list-section {
        height: auto;
        max-height: 400px;
    }

    .detail-info-section {
        padding: 24px;
        border-radius: 20px;
    }

    .detail-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .detail-header h1 {
        font-size: 1.6rem;
    }

    .episode-grid {
        grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    }
}

/* --- Skeleton Loading --- */
.skeleton {
    background-color: var(--skeleton-base-color);
    position: relative;
    overflow: hidden;
}

.skeleton::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    transform: translateX(-100%);
    background-image: linear-gradient(90deg,
            transparent 0,
            var(--skeleton-shine-color) 50%,
            transparent 100%);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    100% {
        transform: translateX(100%);
    }
}

.movie-card.skeleton {
    border: none;
    box-shadow: none;
}

.hidden {
    display: none !important;
}