:root {
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent: #8b5cf6;
    --accent-hover: #7c3aed;
    --danger: #ef4444;
    --success: #10b981;
    --border: rgba(255, 255, 255, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Glassmorphism Utilities */
.glass {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: 16px;
}

/* Typography */
h1, h2, h3, h4, h5 {
    color: var(--text-primary);
    font-weight: 700;
}

p {
    color: var(--text-secondary);
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--accent-hover);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--accent);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(139, 92, 246, 0.39);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.5);
    color: white;
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background-color: rgba(255,255,255,0.05);
    transform: translateY(-2px);
}

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 15px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    border-top: none;
    border-left: none;
    border-right: none;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(to right, #8b5cf6, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

/* Grid Layouts */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 0;
    flex: 1;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

/* Product Card */
.product-card {
    transition: all 0.3s ease;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.product-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 1px solid var(--border);
}

.product-info {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.product-title {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.product-price {
    font-size: 1.1rem;
    font-weight: bold;
    color: var(--success);
    margin-bottom: 15px;
}

.product-card-footer {
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Form Styles */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    transition: border-color 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
}

/* Product Details Page */
.product-detail-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

@media (max-width: 768px) {
    .product-detail-container {
        grid-template-columns: 1fr;
    }
}

.main-image-container {
    border-radius: 16px;
    overflow: hidden;
}

.main-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 16px;
}

.color-options {
    display: flex;
    gap: 15px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.color-thumbnail {
    width: 60px;
    height: 60px;
    border-radius: 8px;
    object-fit: cover;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.2s;
}

.color-thumbnail:hover, .color-thumbnail.active {
    border-color: var(--accent);
    transform: scale(1.05);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease forwards;
}

/* Admin Dashboard Table */
.admin-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.admin-table th, .admin-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.admin-table th {
    background: rgba(255,255,255,0.02);
}

.badge {
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: bold;
}
.badge-success { background: rgba(16, 185, 129, 0.2); color: var(--success); }
.badge-danger { background: rgba(239, 68, 68, 0.2); color: var(--danger); }