@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: #ff0000;
    --accent: #3ea6ff;
    --bg-main: #0f0f0f;
    --bg-darker: #000000;
    --card-bg: #1e1e1e;
    --nav-bg: rgba(15, 15, 15, 0.95);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --border: rgba(255, 255, 255, 0.1);
    --text-white: #ffffff;
    --text-dim: #aaaaaa;
    --text-hover: #ffffff;
    --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    --sidebar-width: 240px;
    --sidebar-collapsed: 72px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Plus Jakarta Sans', sans-serif;
}

body {
    background-color: var(--bg-main);
    color: var(--text-white);
    overflow-x: hidden;
    scrollbar-gutter: stable;
}

/* --- Scrollbar Customization --- */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: #333;
    border-radius: 20px;
    border: 3px solid var(--bg-main);
}

::-webkit-scrollbar-thumb:hover {
    background: #444;
}

/* --- Keyframes --- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes skeletonPulse {
    0% {
        background-color: #1a1a1a;
    }

    50% {
        background-color: #2a2a2a;
    }

    100% {
        background-color: #1a1a1a;
    }
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* --- Global Utilities --- */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid var(--border);
}

.fade-in {
    animation: fadeInUp 0.6s ease forwards;
}

.auth-input {
    width: 100%;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: white;
    margin-bottom: 20px;
    outline: none;
}

.auth-input:focus {
    border-color: var(--primary);
}

.btn {
    position: relative;
    overflow: hidden;
    padding: 10px 20px;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: #e60000;
    transform: scale(1.05);
}

.btn-glass {
    background: var(--glass-bg);
    color: white;
    border: 1px solid var(--border);
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* --- Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 70px;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 2000;
    transition: var(--transition);
}

.navbar.sticky {
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.menu-toggle {
    font-size: 20px;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.menu-toggle:hover {
    background: var(--glass-bg);
}

.logo {
    display: flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
    color: white;
    font-weight: 800;
    font-size: 20px;
}

.logo-icon {
    color: var(--primary);
    font-size: 28px;
}

.search-container {
    flex: 0 1 600px;
    position: relative;
    display: flex;
    align-items: center;
}

.search-box {
    width: 100%;
    background: #000;
    border: 1px solid var(--border);
    border-radius: 40px 0 0 40px;
    padding: 10px 20px;
    color: white;
    font-size: 15px;
    outline: none;
    transition: var(--transition);
}

.search-box:focus {
    border-color: var(--accent);
    box-shadow: inset 0 0 0 1px var(--accent);
}

.search-btn {
    background: #222;
    border: 1px solid var(--border);
    border-left: none;
    padding: 0 20px;
    height: 40px;
    border-radius: 0 40px 40px 0;
    color: var(--text-dim);
    cursor: pointer;
    transition: var(--transition);
}

.search-btn:hover {
    background: #333;
    color: white;
}

/* --- Sidebar --- */
.sidebar {
    position: fixed;
    top: 70px;
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    padding: 12px;
    background: var(--bg-main);
    z-index: 1000;
    transition: var(--transition);
    overflow-y: auto;
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed);
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 12px;
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-dim);
    transition: var(--transition);
    margin-bottom: 4px;
}

.sidebar-item i {
    font-size: 20px;
    width: 24px;
    text-align: center;
}

.sidebar-item span {
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    opacity: 1;
    transition: var(--transition);
}

.sidebar.collapsed span {
    opacity: 0;
    display: none;
}

.sidebar-item:hover,
.sidebar-item.active {
    background: var(--glass-bg);
    color: white;
}

.sidebar-divider {
    height: 1px;
    background: var(--border);
    margin: 12px 0;
}

/* --- Category Chips --- */
.categories-bar {
    position: fixed;
    top: 70px;
    left: var(--sidebar-width);
    right: 0;
    height: 56px;
    background: var(--nav-bg);
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 12px;
    z-index: 900;
    transition: var(--transition);
    overflow-x: auto;
}

.sidebar.collapsed~.categories-bar {
    left: var(--sidebar-collapsed);
}

.chip {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
}

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

.chip.active {
    background: white;
    color: black;
}

/* --- Main Content --- */
.main-content {
    margin-top: 130px;
    margin-left: var(--sidebar-width);
    padding: 24px;
    transition: var(--transition);
}

.sidebar.collapsed~.main-content {
    margin-left: var(--sidebar-collapsed);
}

/* --- Video Grid --- */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.video-card {
    cursor: pointer;
    transition: var(--transition);
}

.thumb-wrapper {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 16/9;
}

.thumb-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.video-card:hover .thumb-wrapper img {
    transform: scale(1.05);
}

.duration-badge {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.video-info {
    display: flex;
    gap: 12px;
    margin-top: 12px;
}

.channel-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #333;
    flex-shrink: 0;
}

.channel-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.v-details h3 {
    font-size: 15px;
    font-weight: 700;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 4px;
}

.v-meta {
    font-size: 13px;
    color: var(--text-dim);
}

.v-meta a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

.v-meta a:hover {
    color: white;
}

.verified-tick {
    font-size: 11px;
    color: var(--text-dim);
    margin-left: 4px;
}

/* --- Skeleton Loader --- */
.skeleton-card .thumb-wrapper {
    animation: skeletonPulse 1.5s infinite;
}

.skeleton-card .v-details h3 {
    height: 15px;
    width: 80%;
    animation: skeletonPulse 1.5s infinite;
    margin-top: 10px;
    border-radius: 4px;
}

.skeleton-card .v-meta {
    height: 12px;
    width: 60%;
    animation: skeletonPulse 1.5s infinite;
    margin-top: 6px;
    border-radius: 4px;
}

/* --- Custom Player --- */
.player-container {
    position: relative;
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    background: #000;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 16/9;
}

.custom-video-player {
    width: 100%;
    height: 100%;
}

/* --- Auth Pages --- */
.auth-page {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at top left, #2a0000, #0f0f0f);
}

.auth-card {
    width: 400px;
    padding: 40px;
    border-radius: 24px;
    text-align: center;
}

/* --- Responsive --- */
@media (max-width: 1000px) {
    .sidebar {
        display: none;
    }

    .main-content {
        margin-left: 0;
    }

    .categories-bar {
        left: 0;
    }

    .search-container {
        flex: 1;
        margin: 0 20px;
    }
}

/* --- Empty State --- */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 20px;
    color: var(--text-dim);
    background: rgba(255, 255, 255, 0.02);
    border-radius: 16px;
    border: 1px dashed var(--border);
    margin-top: 40px;
}

.empty-state i {
    font-size: 48px;
    margin-bottom: 24px;
    color: var(--text-dim);
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 20px;
    color: white;
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 14px;
    margin-bottom: 24px;
}