/* ElectroShop - Modern E-Commerce Design */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --dark-color: #1f2937;
    --light-color: #f9fafb;
    --gray-color: #6b7280;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

* {
    box-sizing: border-box;
}

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

/* Navigation */
.navbar {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    box-shadow: var(--shadow);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: white !important;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: white !important;
}

/* Hero Section */
.jumbotron {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 2rem;
    margin-bottom: 3rem;
    border-radius: 0;
    position: relative;
    overflow: hidden;
}

.jumbotron::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.1;
}

.jumbotron .container {
    position: relative;
    z-index: 1;
}

.jumbotron h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.jumbotron p {
    font-size: 1.2rem;
    font-weight: 300;
    margin-bottom: 0;
}

/* Product Cards */
.card {
    border: none;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    overflow: hidden;
    background: white;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-img-top {
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.card:hover .card-img-top {
    transform: scale(1.05);
}

.card-body {
    padding: 1.5rem;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.card-text {
    color: var(--gray-color);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.card .price {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Buttons */
.btn {
    border-radius: 8px;
    font-weight: 500;
    padding: 0.5rem 1.5rem;
    transition: all 0.3s ease;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color), #059669);
    color: white;
}

.btn-success:hover {
    background: linear-gradient(135deg, #059669, var(--success-color));
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-secondary {
    background: var(--gray-color);
    color: white;
}

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

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color), #dc2626);
    color: white;
}

.btn-danger:hover {
    background: linear-gradient(135deg, #dc2626, var(--danger-color));
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

/* Forms */
.form-control {
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    outline: none;
}

.form-label {
    font-weight: 500;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

/* Alerts */
.alert {
    border-radius: 8px;
    border: none;
    padding: 1rem 1.5rem;
    margin-bottom: 1rem;
}

.alert-success {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(5, 150, 105, 0.1));
    color: #065f46;
    border-left: 4px solid var(--success-color);
}

.alert-danger {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1), rgba(220, 38, 38, 0.1));
    color: #991b1b;
    border-left: 4px solid var(--danger-color);
}

/* Tables */
.table {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.table th {
    background: var(--primary-color);
    color: white;
    font-weight: 600;
    border: none;
    padding: 1rem;
}

.table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.table tbody tr:hover {
    background: rgba(37, 99, 235, 0.02);
}

/* Footer */
footer {
    background: var(--dark-color);
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

footer h5 {
    color: white;
    font-weight: 600;
    margin-bottom: 1rem;
}

footer a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

footer a:hover {
    color: white;
}

footer .social-links {
    margin-top: 1rem;
}

footer .social-links a {
    display: inline-block;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    text-align: center;
    line-height: 40px;
    margin-right: 0.5rem;
    transition: all 0.3s ease;
}

footer .social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

/* Product Detail Page */
.product-image {
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.product-info h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.product-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.product-description {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--gray-color);
    margin-bottom: 2rem;
}

/* Cart Page */
.cart-item {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.cart-item:hover {
    box-shadow: var(--shadow-lg);
}

.cart-summary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 12px;
    padding: 2rem;
    position: sticky;
    top: 2rem;
}

.cart-summary h5 {
    color: white;
    margin-bottom: 1.5rem;
}

.cart-summary .total-price {
    font-size: 1.5rem;
    font-weight: 700;
}

/* Checkout Page */
.checkout-form {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
}

.order-summary {
    background: var(--light-color);
    border-radius: 12px;
    padding: 2rem;
    border: 2px solid var(--border-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .jumbotron h1 {
        font-size: 2rem;
    }

    .jumbotron {
        padding: 2rem 1rem;
    }

    .card-body {
        padding: 1rem;
    }

    .navbar-brand {
        font-size: 1.25rem;
    }

    .product-info h1 {
        font-size: 2rem;
    }

    .cart-summary {
        position: static;
        margin-top: 2rem;
    }
}

/* Loading Animation */
/* Full-page loading overlay */
body.loading::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(2px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

body.loading::after {
    content: '';
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border: 4px solid #2563eb;
    border-top: 4px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    z-index: 10000;
}

::-webkit-scrollbar-track {
    background: var(--light-color);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--dark-color);
}