/* Modern Premium E-Commerce Design System */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    --bg-primary: #0b0f19;
    --bg-secondary: #161c2d;
    --bg-card: #1f293d;
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --accent: #10b981; /* Emerald green */
    --accent-hover: #059669;
    --danger: #ef4444;
    --border-color: #2e3c54;
    --glass-bg: rgba(22, 28, 45, 0.7);
    --glass-border: rgba(255, 255, 255, 0.05);
    --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    --font-sans: 'Outfit', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

button, input, textarea {
    font-family: inherit;
}

/* Header & Glassmorphism Navigation */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #34d399 0%, #059669 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    color: var(--text-primary);
    -webkit-text-fill-color: var(--text-primary);
}

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

nav a {
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    opacity: 0.85;
}

nav a:hover {
    color: var(--accent);
    opacity: 1;
}

.cart-icon {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
}

.cart-icon:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.cart-badge {
    background-color: var(--accent);
    color: #0b0f19;
    font-size: 0.75rem;
    font-weight: 700;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: 0.5rem;
}

/* Hero Section */
.hero {
    padding: 6rem 2rem 4rem;
    text-align: center;
    background: radial-gradient(circle at top, rgba(16, 185, 129, 0.1) 0%, transparent 60%);
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero h1 span {
    background: linear-gradient(135deg, #34d399 0%, #10b981 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    color: var(--text-secondary);
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

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

/* Product Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2.5rem;
    margin-top: 2rem;
}

/* Product Card */
.product-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    position: relative;
}

.product-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent);
    box-shadow: var(--shadow);
}

.product-image-wrapper {
    position: relative;
    width: 100%;
    padding-top: 100%; /* 1:1 Aspect Ratio */
    background: #1f293d;
    overflow: hidden;
}

.product-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.product-card:hover .product-image {
    transform: scale(1.05);
}

.product-info {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.product-name {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.product-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

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

.product-price {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent);
}

.btn {
    background-color: var(--accent);
    color: #0b0f19;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background-color: var(--border-color);
}

.btn-danger {
    background-color: var(--danger);
    color: #ffffff;
}

.btn-danger:hover {
    background-color: #dc2626;
}

/* Product Detail Page */
.product-detail-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 2rem;
}

.detail-image-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.detail-image {
    max-width: 100%;
    border-radius: 16px;
    transition: var(--transition);
}

.detail-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.detail-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
}

.detail-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 1.5rem;
}

.detail-desc {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.detail-actions {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.quantity-selector {
    display: flex;
    align-items: center;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-secondary);
    overflow: hidden;
}

.quantity-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
}

.quantity-btn:hover {
    background: var(--border-color);
}

.quantity-input {
    background: none;
    border: none;
    color: var(--text-primary);
    width: 40px;
    text-align: center;
    font-size: 1rem;
    font-weight: 600;
}

/* Cart Page */
.cart-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
}

.cart-items {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.cart-item {
    display: flex;
    align-items: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.25rem;
    gap: 1.5rem;
}

.cart-item-image {
    width: 80px;
    height: 80px;
    border-radius: 12px;
    object-fit: cover;
    background: var(--bg-card);
}

.cart-item-info {
    flex-grow: 1;
}

.cart-item-name {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.cart-item-price {
    color: var(--accent);
    font-weight: 700;
}

.cart-summary {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    height: fit-content;
}

.cart-summary-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.75rem;
}

.cart-summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.cart-summary-total {
    font-size: 1.4rem;
    font-weight: 800;
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
    margin-top: 1rem;
}

/* Checkout Form styling */
.checkout-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-top: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-control {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

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

/* Admin Styles */
.admin-login-card {
    max-width: 400px;
    margin: 6rem auto;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 2.5rem;
    box-shadow: var(--shadow);
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
    margin-bottom: 2rem;
}

.admin-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
}

.admin-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
}

.admin-box h2 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.table-wrapper {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    font-weight: 600;
    color: var(--text-secondary);
}

tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-block;
}

.status-badge.paid {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent);
}

.status-badge.pending {
    background: rgba(245, 158, 11, 0.15);
    color: #f59e0b;
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: 5rem 2rem;
}

.empty-state h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.empty-state p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* Responsive Breakpoints */
@media (max-width: 968px) {
    .product-detail-layout, .cart-layout, .admin-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
}

@media (max-width: 600px) {
    header {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }
    
    nav ul {
        gap: 1.25rem;
    }
    
    .cart-icon {
        width: 100%;
        justify-content: center;
    }
}