:root {
    /* Modern Palette - Deep Space & Vibrant Accents */
    --primary: #4ade80;
    --primary-dark: #22c55e;
    --accent: #8b5cf6;
    --accent-glow: rgba(139, 92, 246, 0.4);
    
    /* Backgrounds */
    --bg-body: #020617;
    --bg-header: rgba(2, 6, 23, 0.9);
    --bg-modal: rgba(2, 6, 23, 0.95);
    
    /* Glassmorphism 2.0 - High Fidelity */
    --glass-bg: rgba(15, 23, 42, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-blur: blur(20px) saturate(180%);
    
    --card-bg: rgba(30, 41, 59, 0.4);
    --card-hover: rgba(30, 41, 59, 0.7);
    
    --text-white: #f8fafc;
    --text-muted: #94a3b8;
    
    --transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

[data-theme="light"] {
    --primary: #16a34a;
    --primary-dark: #15803d;
    --accent: #7c3aed;
    
    --bg-body: #f1f5f9;
    --bg-header: rgba(241, 245, 249, 0.9);
    --bg-modal: rgba(241, 245, 249, 0.95);
    
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(0, 0, 0, 0.06);
    --card-bg: rgba(255, 255, 255, 0.5);
    --card-hover: rgba(255, 255, 255, 0.8);
    --text-white: #0f172a;
    --text-muted: #475569;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: 'Mukta', sans-serif;
    background: var(--bg-body);
    color: var(--text-white);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Premium Mesh Gradient Background */
.background-blob, .background-blob-2 {
    position: fixed;
    width: 70vw;
    height: 70vw;
    filter: blur(100px);
    z-index: -1;
    opacity: 0.35;
    border-radius: 50%;
    pointer-events: none;
    animation: mesh-move 25s infinite alternate ease-in-out;
}

.background-blob {
    top: -15%;
    left: -15%;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
}

.background-blob-2 {
    bottom: -15%;
    right: -15%;
    background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
    animation-delay: -7s;
}

@keyframes mesh-move {
    0% { transform: translate(0,0) rotate(0deg) scale(1); }
    100% { transform: translate(15%, 15%) rotate(15deg) scale(1.15); }
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Modern Header */
.gallery-header {
    padding: 7rem 0 5rem;
    text-align: center;
    position: relative;
    background: linear-gradient(to bottom, var(--bg-header), transparent);
}

.gallery-header h1 {
    font-family: 'Outfit', sans-serif;
    font-size: clamp(3.5rem, 10vw, 6rem);
    font-weight: 800;
    letter-spacing: -0.05em;
    margin-bottom: 0.75rem;
    line-height: 0.9;
}

.gallery-header h1 span {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 25px rgba(74, 222, 128, 0.25));
}

.gallery-header p {
    font-size: 1.4rem;
    color: var(--text-muted);
    font-weight: 300;
    max-width: 700px;
    margin: 0 auto 3.5rem;
    letter-spacing: 0.03em;
}

/* Glass Tabs Navigation */
.product-tabs-container {
    display: inline-flex;
    padding: 0.6rem;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 5rem;
    margin-bottom: 3rem;
    max-width: calc(100vw - 4rem);
    overflow-x: auto;
    scrollbar-width: none;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.product-tabs-container::-webkit-scrollbar { display: none; }

.product-tabs {
    display: flex;
    gap: 0.6rem;
    white-space: nowrap;
}

.view-btn {
    text-decoration: none;
    padding: 0.85rem 2rem;
    border-radius: 4rem;
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-muted);
    transition: var(--transition);
    border: 1px solid transparent;
}

.view-btn:hover {
    color: var(--text-white);
    background: rgba(255,255,255,0.08);
}

.view-btn.active {
    background: var(--primary);
    color: #020617;
    box-shadow: 0 12px 24px rgba(74, 222, 128, 0.4);
}

/* Modern Search Bar */
.search-container {
    max-width: 650px;
    margin: 0 auto 4rem;
    position: relative;
    z-index: 10;
}

.search-input {
    width: 100%;
    padding: 1.25rem 1.5rem 1.25rem 4rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 4rem;
    color: var(--text-white);
    font-family: inherit;
    font-size: 1.1rem;
    backdrop-filter: var(--glass-blur);
    transition: var(--transition);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 30px rgba(74, 222, 128, 0.2);
    background: var(--card-hover);
}

.search-icon {
    position: absolute;
    left: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    width: 24px;
    height: 24px;
    opacity: 0.6;
}

/* Video Grid 2.0 */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 3rem;
    padding-bottom: 8rem;
    transition: var(--transition);
}

.video-card {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 2.5rem;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
}

.video-card:hover {
    transform: translateY(-15px) scale(1.03);
    border-color: rgba(74, 222, 128, 0.5);
    box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.6), 0 0 25px rgba(74, 222, 128, 0.15);
}

.thumbnail-wrapper {
    position: relative;
    aspect-ratio: 16/9;
}

.thumbnail-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s cubic-bezier(0.23, 1, 0.32, 1);
}

.video-card:hover .thumbnail-wrapper img {
    transform: scale(1.15);
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    width: 80px;
    height: 80px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
    box-shadow: 0 0 40px rgba(74, 222, 128, 0.6);
}

.video-card:hover .play-button {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.play-button svg {
    width: 35px;
    height: 35px;
    fill: #020617;
    margin-left: 5px;
}

.video-info {
    padding: 2rem;
}

.video-info h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-white);
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Modern Modal */
.modal {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 2rem;
}

.modal.active { display: flex; }

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: var(--bg-modal);
    backdrop-filter: blur(12px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 1100px;
    aspect-ratio: 16/9;
    border-radius: 2.5rem;
    overflow: hidden;
    background: #000;
    box-shadow: 0 50px 100px rgba(0,0,0,0.8);
    transform: scale(0.9);
    transition: var(--transition);
}

.modal.active .modal-content { transform: scale(1); }

.close-modal {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1002;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.close-modal:hover {
    background: var(--primary);
    color: #020617;
    transform: rotate(90deg) scale(1.1);
}

.video-container { width: 100%; height: 100%; }
.video-container iframe { width: 100%; height: 100%; border: none; }

/* Back to Top Floating Button */
#back-to-top {
    position: fixed;
    bottom: 3rem;
    right: 3rem;
    width: 65px;
    height: 65px;
    background: var(--primary);
    color: #020617;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(30px);
    transition: var(--transition);
    z-index: 999;
    box-shadow: 0 15px 40px rgba(74, 222, 128, 0.3);
}

#back-to-top.visible {
    opacity: 1; visibility: visible; transform: translateY(0);
}

#back-to-top:hover {
    transform: scale(1.15) translateY(-5px);
    background: var(--primary-dark);
}

/* Auth & Toast Styling */
.auth-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg-body);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 5000;
}

.auth-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    padding: 4rem;
    border-radius: 3rem;
    text-align: center;
    width: 100%;
    max-width: 450px;
    box-shadow: 0 40px 80px rgba(0,0,0,0.4);
}

/* Admin UI Refactor */
.admin-card {
    background: var(--glass-bg) !important;
    backdrop-filter: var(--glass-blur) !important;
    border: 1px solid var(--glass-border) !important;
    border-radius: 2.5rem !important;
    padding: 3rem !important;
    margin-bottom: 3rem !important;
}

.product-selector {
    display: flex;
    overflow-x: auto;
    gap: 1rem;
    padding-bottom: 1rem;
    scrollbar-width: thin;
}
.product-selector::-webkit-scrollbar { height: 6px; }

.selector-btn {
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--glass-border);
    padding: 1.25rem;
    border-radius: 1.5rem;
    color: var(--text-white);
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}

.selector-btn:hover { background: rgba(255,255,255,0.1); }
.selector-btn.active {
    background: var(--primary);
    color: #020617;
    border-color: var(--primary);
}

.form-control {
    background: rgba(15, 23, 42, 0.6) !important;
    border: 1px solid var(--glass-border) !important;
    padding: 1rem 1.5rem !important;
    border-radius: 1.25rem !important;
    color: white !important;
    transition: var(--transition) !important;
}

.form-control:focus {
    border-color: var(--primary) !important;
    box-shadow: 0 0 20px rgba(74, 222, 128, 0.1) !important;
}

.btn {
    border-radius: 1.25rem !important;
    padding: 1rem 2rem !important;
    font-weight: 800 !important;
    transition: var(--transition) !important;
}

/* Custom Scrollbar */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg-body); }
::-webkit-scrollbar-thumb {
    background: var(--card-bg);
    border-radius: 10px;
    border: 3px solid var(--bg-body);
}
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* Footer */
.gallery-footer {
    padding: 5rem 0 3rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 1rem;
    font-weight: 300;
}

@media (max-width: 768px) {
    .container { padding: 0 1.5rem; }
    .gallery-header h1 { font-size: 3.5rem; }
    .video-grid { grid-template-columns: 1fr; gap: 2rem; }
    #back-to-top { bottom: 2rem; right: 2rem; width: 55px; height: 55px; }
    .admin-card { padding: 2rem !important; }
}

/* Product Hero Section */
.product-hero-section {
    margin-top: -2rem;
    margin-bottom: 4rem;
    padding: 3rem;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    animation: fadeIn 0.8s ease backwards;
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}

.product-hero-image {
    width: 280px;
    height: 280px;
    object-fit: contain;
    margin-bottom: 2rem;
    filter: drop-shadow(0 0 30px rgba(74, 222, 128, 0.2));
    transition: var(--transition);
}

.product-hero-image:hover {
    transform: scale(1.05) rotate(2deg);
}

.product-hero-title {
    font-family: 'Outfit', sans-serif;
    font-size: 3.5rem;
    font-weight: 800;
    margin: 0;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.02em;
}

.product-hero-section p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-top: 0.5rem;
    max-width: 500px;
}

@media (max-width: 768px) {
    .product-hero-section {
        padding: 2rem;
        margin-bottom: 2.5rem;
    }
    .product-hero-image {
        width: 180px;
        height: 180px;
    }
    .product-hero-title {
        font-size: 2.5rem;
    }
}