:root {
    /* Premium Dark Theme */
    --bg-color: #020617;
    /* Very dark slate */
    --text-color: #f1f5f9;
    --text-muted: #94a3b8;

    /* Vibrant Gradients */
    --primary-color: #6366f1;
    /* Indigo */
    --accent-color: #d946ef;
    /* Fuchsia */
    --gradient-primary: linear-gradient(135deg, #6366f1, #d946ef);
    --gradient-hover: linear-gradient(135deg, #4f46e5, #c026d3);

    /* Glassmorphism */
    --glass-bg: rgba(30, 41, 59, 0.4);
    /* More transparent */
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shine: rgba(255, 255, 255, 0.05);

    --success: #10b981;
    --danger: #ef4444;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-color);
    /* Dynamic Mesh Gradient Background */
    background-image:
        radial-gradient(circle at 15% 50%, rgba(99, 102, 241, 0.15) 0%, transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(217, 70, 239, 0.15) 0%, transparent 25%);
    color: var(--text-color);
    margin: 0;
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Glassmorphism Utilities */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-top: 1px solid var(--glass-shine);
    border-radius: 20px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

.glass-header {
    background: rgba(2, 6, 23, 0.7);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Typography & General */
h1,
h2,
h3,
h4 {
    font-weight: 700;
    letter-spacing: -0.025em;
    margin-top: 0;
}

h1 {
    font-size: 2.5rem;
    background: linear-gradient(to right, #818cf8, #f472b6);
    display: inline-block;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ... existing styles ... */
/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

.nav-links {
    display: flex;
    gap: 1rem;
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(2, 6, 23, 0.98);
        -webkit-backdrop-filter: blur(20px);
        backdrop-filter: blur(20px);
        padding: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease-in-out;
        flex-direction: column;
        gap: 0;
        border-bottom: 1px solid var(--glass-border);
    }

    .nav-links.active {
        max-height: 300px;
        display: flex;
    }

    .nav-links a {
        padding: 1rem;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
        width: 100%;
        text-align: center;
        box-sizing: border-box;
    }
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 0.8rem 1.75rem;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    text-align: center;
    letter-spacing: 0.025em;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px -3px rgba(99, 102, 241, 0.5);
}

.btn-primary:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 10px 25px -5px rgba(217, 70, 239, 0.6);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: white;
    border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

/* Form Elements */
input,
select,
textarea {
    width: 100%;
    padding: 0.75rem;
    border-radius: 8px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--glass-border);
    color: white;
    font-family: inherit;
    box-sizing: border-box;
    transition: border-color 0.2s;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

/* Admin Styles */
.admin-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    min-height: 100vh;
}

.sidebar {
    background: rgba(15, 23, 42, 0.95);
    border-right: 1px solid var(--glass-border);
    padding: 2rem 1rem;
}

.sidebar-nav a {
    display: block;
    padding: 0.75rem 1rem;
    color: #94a3b8;
    border-radius: 8px;
    margin-bottom: 0.5rem;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.main-content {
    padding: 2rem;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

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

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    border: 1px solid transparent;
}

.alert-error {
    background: rgba(239, 68, 68, 0.2);
    border-color: rgba(239, 68, 68, 0.5);
    color: #fca5a5;
}

.alert-success {
    background: rgba(16, 185, 129, 0.2);
    border-color: rgba(16, 185, 129, 0.5);
    color: #6ee7b7;
}

/* Product Cards */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.product-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 16px 16px 0 0;
    background-color: #1e293b;
}

.product-content {
    padding: 1.5rem;
    flex-grow: 1;
}

.badge {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 700;
}

.badge-pending {
    background: #f59e0b;
    color: #000;
}

.badge-approved {
    background: #10b981;
    color: #000;
}

.badge-rejected {
    background: #ef4444;
    color: #fff;
}

/* Mobile Optimizations */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    h1 {
        font-size: 2rem;
    }

    .product-grid {
        grid-template-columns: 1fr;
        /* Stack products on mobile */
        gap: 1.5rem;
    }

    .glass-header h1 {
        font-size: 1.5rem !important;
    }

    /* Stack buttons in modals and forms */
    .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }

    /* Adjust credentials grid in checker */
    .credentials-grid {
        grid-template-columns: 1fr !important;
    }
}