* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg-primary: #0a0e27;
    --bg-secondary: #141829;
    --bg-tertiary: #1a1f3a;
    --text-primary: #e8eaf6;
    --text-secondary: #b0b0c0;
    --accent: #6366f1;
    --accent-hover: #818cf8;
    --border: #2a2f4a;
}

html, body { height: 100%; }

body {
    margin: 0;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    overflow-x: hidden;
    font-size: 14px;
}

/* Top Bar */
.top-bar {
    height: 64px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
    background: var(--bg-secondary);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border);
    gap: 24px;
}

.logo {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.5px;
    color: var(--accent);
    flex-shrink: 0;
}

.search-container {
    flex: 1;
    max-width: 500px;
}

.search-container input {
    width: 100%;
    padding: 8px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    transition: all 0.2s ease;
}

.search-container input:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--bg-tertiary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.search-container input::placeholder {
    color: var(--text-secondary);
}

.actions {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
}

.icon-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    transition: all 0.2s ease;
    font-size: 20px;
}

.icon-btn:hover {
    background: var(--bg-tertiary);
    color: var(--accent);
}

/* Hamburger Menu */
.hamburger {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: currentColor;
    border-radius: 1px;
    transition: all 0.3s ease;
}

.menu-toggle.active .hamburger span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.menu-toggle.active .hamburger span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active .hamburger span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    right: -100%;
    width: 320px;
    height: 100vh;
    background: var(--bg-secondary);
    z-index: 1001;
    transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
}

.sidebar.open {
    right: 0;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

.sidebar-header h3 {
    font-size: 18px;
    font-weight: 600;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 24px;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s ease;
}

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

.sidebar-content {
    flex: 1;
    padding: 12px 0;
    overflow-y: auto;
}

.sidebar-item {
    display: block;
    padding: 12px 24px;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.sidebar-item:hover {
    background: var(--bg-tertiary);
    border-left-color: var(--accent);
    color: var(--accent);
}

.setting-item {
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
}

.setting-item label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.setting-item select {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 14px;
}

/* Overlay */
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: none;
    z-index: 1000;
    transition: opacity 0.3s ease;
}

.sidebar-overlay.open {
    display: block;
}

/* Grid Container */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    padding: 24px;
    max-width: 100%;
}

@media (max-width: 768px) {
    .grid-container {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 12px;
        padding: 16px;
    }
}

/* Video Card */
.video-card {
    cursor: pointer;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    background: var(--bg-secondary);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.video-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.4);
}

.video-card img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    display: block;
}

.video-card h4 {
    font-size: 14px;
    font-weight: 500;
    padding: 12px;
    line-height: 1.4;
    color: var(--text-primary);
    margin: 0;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-card p {
    font-size: 12px;
    color: var(--text-secondary);
    padding: 0 12px 12px 12px;
    margin: 0;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: #000;
    z-index: 2000;
}

.modal.open {
    display: flex;
}

.modal-content {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    box-sizing: border-box;
    position: relative;
}

.close {
    position: absolute;
    top: 20px;
    right: 20px;
    color: #fff;
    font-size: 32px;
    cursor: pointer;
    background: rgba(0, 0, 0, 0.5);
    border: none;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2001;
    transition: all 0.2s ease;
}

.close:hover {
    background: rgba(255, 255, 255, 0.2);
}

video {
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100vh;
    object-fit: contain;
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}