:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #ec4899;
    --dark: #0f172a;
    --light: #f8fafc;
    --gray: #64748b;
    --white: #ffffff;
    --success: #10b981;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
    background-color: var(--light);
    color: var(--dark);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header & Nav */
header {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--dark);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo i {
    color: var(--primary);
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--gray);
    font-weight: 600;
    transition: all 0.3s ease;
}

.nav-links a:hover {
    color: var(--primary);
}

.admin-link {
    padding: 0.5rem 1rem;
    border: 1px solid var(--primary);
    border-radius: 0.5rem;
    color: var(--primary) !important;
}

.admin-link:hover {
    background: var(--primary);
    color: white !important;
}

.cart-icon {
    position: relative;
}

#cart-count {
    position: absolute;
    top: -8px;
    right: -12px;
    background: var(--secondary);
    color: white;
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 50%;
    font-weight: bold;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: all 0.3s ease-in-out;
    background: var(--dark);
}

/* Hero Section */
.hero {
    padding: 8rem 0;
    text-align: center;
    background: radial-gradient(circle at top right, #eef2ff, transparent),
                radial-gradient(circle at bottom left, #fdf2f8, transparent);
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--primary);
    color: white;
    border-radius: 0.75rem;
    text-decoration: none;
    font-weight: 700;
    transition: transform 0.2s, box-shadow 0.2s;
    border: none;
    cursor: pointer;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(99, 102, 241, 0.4);
}

/* SQL Table Public View */
.data-card {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: var(--shadow);
    overflow-x: auto;
}

.sql-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.sql-table th {
    padding: 1rem;
    border-bottom: 2px solid var(--light);
    color: var(--gray);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
}

.sql-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--light);
}

.status-pill {
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.8rem;
    font-weight: 600;
}

.status-online { background: #dcfce7; color: #166534; }
.status-pending { background: #fef9c3; color: #854d0e; }

/* Product Cards */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    padding: 4rem 0;
}

.product-card {
    background: white;
    border-radius: 1.5rem;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

.product-card:hover {
    transform: translateY(-10px);
}

.product-img {
    height: 200px;
    background: linear-gradient(45deg, #f1f5f9, #e2e8f0);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--primary);
}

.product-info {
    padding: 1.5rem;
}

.product-info h3 {
    margin-bottom: 0.5rem;
}

.price-tag {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--dark);
    margin: 1rem 0;
}

/* Footer */
footer {
    background: var(--dark);
    color: white;
    padding: 4rem 0 2rem;
    margin-top: 4rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-links h4, .footer-contact h4 {
    margin-bottom: 1.5rem;
    color: var(--primary);
}

.footer-links a {
    display: block;
    color: #94a3b8;
    text-decoration: none;
    margin-bottom: 0.75rem;
}

.footer-bottom {
    border-top: 1px solid #1e293b;
    padding-top: 2rem;
    text-align: center;
    color: #64748b;
}

/* Cart Page */
.cart-container {
    max-width: 800px;
    margin: 4rem auto;
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow);
}

.cart-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid var(--light);
}

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

    .nav-links {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

    .nav-links.active {
        left: 0;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .menu-toggle.is-active .bar:nth-child(2) { opacity: 0; }
    .menu-toggle.is-active .bar:nth-child(1) { transform: translateY(8px) rotate(45deg); }
    .menu-toggle.is-active .bar:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
}