/* ========================================
   Home Page Styles
   ======================================== */

/* Main Layout */
.home-layout {
    display: grid;
    grid-template-columns: 1fr var(--sidebar-width);
    gap: var(--space-6);
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-6) var(--space-4);
}

@media (max-width: 1024px) {
    .home-layout {
        grid-template-columns: 1fr;
    }

    .home-sidebar {
        display: none;
    }
}

/* Hero Banner */
.hero-banner {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-card) 100%);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    text-align: center;
    position: relative;
    margin-bottom: var(--space-8);
    overflow: hidden;
}

.hero-banner::before {
    content: 'AD';
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    padding: var(--space-1) var(--space-2);
    font-size: 10px;
    font-weight: var(--font-bold);
    color: var(--text-muted);
    background: var(--bg-elevated);
    border-radius: var(--radius-sm);
}

.hero-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
    color: var(--accent-primary);
    margin-bottom: var(--space-2);
}

.hero-subtitle {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

/* Search Section */
.search-section {
    text-align: center;
    margin-bottom: var(--space-8);
}

.search-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-6);
}

/* Categories */
.categories-section {
    margin-bottom: var(--space-6);
}

/* Trending Section */
.trending-section {
    margin-bottom: var(--space-8);
}

.section-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.section-icon {
    font-size: var(--text-xl);
}

.section-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
}

/* Video Grid */
.video-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    grid-auto-rows: auto;
    grid-auto-flow: dense;
}

@media (max-width: 1200px) {
    .video-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .video-grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }
}

/* Second Row - 3 column layout */
.video-grid-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    margin-top: var(--space-6);
}

@media (max-width: 900px) {
    .video-grid-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .video-grid-row {
        grid-template-columns: 1fr;
    }
}

/* Sidebar */
.home-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

/* Loading Spinner */
.loading-spinner {
    display: flex;
    justify-content: center;
    padding: var(--space-8);
}

.loading-spinner::after {
    content: '';
    width: 40px;
    height: 40px;
    border: 3px solid var(--bg-elevated);
    border-top-color: var(--accent-primary);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
}

/* Load More Container */
.load-more-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-8);
    margin-top: var(--space-6);
    transition: opacity 0.3s ease;
}

.load-more-container.hidden {
    /* Override global .hidden which uses display:none !important */
    /* Must remain in layout for IntersectionObserver to work */
    display: flex !important;
    opacity: 0;
    pointer-events: none;
    /* Keep minimum height so sentinel remains detectable */
    min-height: 100px;
}

.load-more-container .loading-spinner {
    padding: var(--space-4);
}

.load-more-text {
    color: var(--text-muted);
    font-size: var(--text-sm);
    margin-top: var(--space-2);
}

.no-more-videos {
    text-align: center;
    padding: var(--space-6);
    color: var(--text-muted);
    font-size: var(--text-sm);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--space-12);
    color: var(--text-tertiary);
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: var(--space-4);
}

.empty-state-text {
    font-size: var(--text-lg);
}

/* Mobile Categories Scroll */
@media (max-width: 768px) {
    .categories-section {
        margin-left: calc(-1 * var(--space-4));
        margin-right: calc(-1 * var(--space-4));
        padding: 0 var(--space-4);
    }

    .category-tabs {
        padding: var(--space-2) var(--space-4);
    }
}

/* Featured Video */
.featured-video {
    grid-column: span 2;
}

@media (max-width: 768px) {
    .featured-video {
        grid-column: span 1;
    }
}

.featured-video .video-thumbnail {
    aspect-ratio: 21/9;
}

/* Animation for cards */
.video-card {
    animation: fadeIn 0.3s ease forwards;
    opacity: 0;
}

.video-card:nth-child(1) {
    animation-delay: 0.05s;
}

.video-card:nth-child(2) {
    animation-delay: 0.1s;
}

.video-card:nth-child(3) {
    animation-delay: 0.15s;
}

.video-card:nth-child(4) {
    animation-delay: 0.2s;
}

.video-card:nth-child(5) {
    animation-delay: 0.25s;
}

.video-card:nth-child(6) {
    animation-delay: 0.3s;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

/* Grid Banner Ads (inserted between video rows) */
.grid-banner-ad {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: var(--space-8) var(--space-6);
    border-radius: var(--radius-xl);
    color: white;
    text-align: center;
    margin: var(--space-4) 0;
    animation: fadeIn 0.3s ease forwards;
    overflow: hidden;
    min-height: 120px;
}

.grid-banner-ad::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
    transform: translateX(-100%);
    animation: shimmer 3s infinite;
}

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

.grid-banner-ad .ad-label {
    position: absolute;
    top: var(--space-2);
    right: var(--space-3);
    padding: var(--space-1) var(--space-2);
    font-size: 10px;
    font-weight: var(--font-bold);
    color: rgba(255, 255, 255, 0.8);
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.grid-banner-content {
    position: relative;
    z-index: 1;
}

.grid-banner-title {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-2);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.grid-banner-subtitle {
    font-size: var(--text-sm);
    opacity: 0.9;
    margin-bottom: var(--space-4);
}

.grid-banner-cta {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
    padding: var(--space-2) var(--space-5);
    font-weight: var(--font-semibold);
    transition: all 0.2s ease;
    backdrop-filter: blur(4px);
}

.grid-banner-cta:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: white;
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .grid-banner-ad {
        padding: var(--space-6) var(--space-4);
        min-height: 100px;
    }

    .grid-banner-title {
        font-size: var(--text-lg);
    }

    .grid-banner-subtitle {
        font-size: var(--text-xs);
    }
}

/* Ad Cards (video-card style ads) */
.ad-card {
    cursor: pointer;
    position: relative;
    border: 2px solid transparent;
    background: linear-gradient(var(--bg-secondary), var(--bg-secondary)) padding-box,
        linear-gradient(135deg, var(--primary), var(--accent)) border-box;
    transition: all 0.3s ease;
}

.ad-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(99, 102, 241, 0.25);
}

.ad-thumbnail {
    position: relative;
    overflow: hidden;
}

.ad-thumbnail .ad-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.ad-card:hover .ad-overlay {
    opacity: 0.3;
}

.ad-badge {
    position: absolute;
    top: var(--space-2);
    left: var(--space-2);
    padding: var(--space-1) var(--space-2);
    font-size: 10px;
    font-weight: var(--font-bold);
    color: white;
    background: rgba(0, 0, 0, 0.7);
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 2;
}

.ad-avatar {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
}

.ad-avatar span {
    font-size: var(--text-sm);
}

.ad-advertiser {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.sponsored-tag {
    font-size: 10px;
    padding: 2px 6px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    border-radius: var(--radius-sm);
    font-weight: var(--font-medium);
}

.ad-tagline {
    color: var(--accent) !important;
    font-weight: var(--font-medium);
}