/* Global Styles */
:root {
    --primary-color: #1266f1;
    --secondary-color: #6c757d;
    --success-color: #00b74a;
    --danger-color: #f93154;
    --light-bg: #f8f9fa;
    --dark-text: #212529;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.16);
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
}

/* Navbar Styles */
.navbar {
    transition: all 0.3s ease;
}

.navbar-brand {
    font-size: 1.5rem;
    font-family: 'Montserrat', sans-serif;
    transition: transform 0.3s ease;
}

.navbar-brand:hover {
    transform: scale(1.05);
}

.nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color) !important;
}

.badge-notification {
    position: absolute;
    top: -5px;
    right: -10px;
    font-size: 0.7rem;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero-section::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 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,138.7C960,139,1056,117,1152,101.3C1248,85,1344,75,1392,69.3L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    animation: fadeInUp 1.2s ease;
}

.hero-btn {
    padding: 12px 40px;
    font-size: 1.1rem;
    animation: fadeInUp 1.4s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Carousel Styles */
.carousel-item {
    height: 500px;
}

.carousel-item img {
    object-fit: cover;
    height: 100%;
    width: 100%;
}

.carousel-caption {
    background: rgba(0, 0, 0, 0.5);
    padding: 20px;
    border-radius: 10px;
}

/* Section Styles */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

/* Category Card */
.category-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
}

.category-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.category-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.category-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--dark-text);
}

/* Product Card */
.product-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.product-image {
    position: relative;
    overflow: hidden;
    height: 250px;
    background: var(--light-bg);
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--danger-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

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

.product-category {
    color: var(--secondary-color);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 5px;
}

.product-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--dark-text);
}

.product-description {
    color: var(--secondary-color);
    font-size: 0.9rem;
    margin-bottom: 15px;
    flex-grow: 1;
}

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

.product-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stock-status {
    font-size: 0.85rem;
    padding: 4px 12px;
    border-radius: 15px;
}

.stock-in {
    background: #d1f4e0;
    color: var(--success-color);
}

.stock-out {
    background: #ffd6dd;
    color: var(--danger-color);
}

/* Button Styles */
.btn {
    border-radius: 8px;
    padding: 10px 25px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: var(--primary-color);
    box-shadow: 0 4px 8px rgba(18, 102, 241, 0.3);
}

.btn-primary:hover {
    background: #0d52c7;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(18, 102, 241, 0.4);
}

.btn-add-cart {
    width: 100%;
    margin-top: 15px;
}

/* Cart Styles */
.cart-item {
    background: white;
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

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

.cart-item-image {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 10px;
}

.cart-item-details {
    flex-grow: 1;
    padding: 0 20px;
}

.cart-item-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 5px;
}

.cart-item-price {
    font-size: 1.3rem;
    color: var(--primary-color);
    font-weight: 700;
}

.quantity-control {
    display: flex;
    align-items: center;
    gap: 10px;
}

.quantity-btn {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    border: 2px solid var(--primary-color);
    background: white;
    color: var(--primary-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.quantity-input {
    width: 60px;
    text-align: center;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    padding: 5px;
}

/* Cart Summary */
.cart-summary {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 100px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid #e0e0e0;
}

.summary-total {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* Form Styles */
.form-control, .form-select {
    border-radius: 8px;
    border: 2px solid #e0e0e0;
    padding: 12px 15px;
    transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(18, 102, 241, 0.15);
}

.form-label {
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--dark-text);
}

/* Auth Pages */
.auth-container {
    min-height: calc(100vh - 200px);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light-bg);
}

.auth-card {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
    max-width: 450px;
    width: 100%;
}

.auth-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 30px;
    text-align: center;
}

/* Footer Styles */
footer {
    margin-top: auto;
}

.footer-link {
    text-decoration: none;
    transition: color 0.3s ease;
    display: block;
    margin-bottom: 8px;
}

.footer-link:hover {
    color: var(--primary-color) !important;
}

.social-links a {
    transition: transform 0.3s ease;
    display: inline-block;
}

.social-links a:hover {
    transform: translateY(-3px);
}

/* Admin Sidebar */
.admin-sidebar {
    background: white;
    min-height: calc(100vh - 76px);
    box-shadow: var(--shadow-md);
    padding: 20px 0;
}

.admin-nav-link {
    padding: 12px 25px;
    color: var(--dark-text);
    text-decoration: none;
    display: block;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.admin-nav-link:hover,
.admin-nav-link.active {
    background: var(--light-bg);
    border-left-color: var(--primary-color);
    color: var(--primary-color);
}

.admin-nav-link i {
    width: 25px;
    margin-right: 10px;
}

/* Dashboard Cards */
.dashboard-card {
    background: white;
    border-radius: 15px;
    padding: 25px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border-left: 4px solid var(--primary-color);
}

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

.dashboard-card-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.dashboard-card-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.dashboard-card-label {
    color: var(--secondary-color);
    font-size: 0.9rem;
}

/* Table Styles */
.table-responsive {
    background: white;
    border-radius: 15px;
    padding: 20px;
    box-shadow: var(--shadow-sm);
}

.table {
    margin-bottom: 0;
}

.table thead th {
    border-bottom: 2px solid var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .cart-item {
        flex-direction: column;
        text-align: center;
    }
    
    .cart-item-image {
        margin: 0 auto 15px;
    }
    
    .cart-summary {
        position: static;
        margin-top: 30px;
    }
}

/* Animations */
.fade-in {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.slide-in-up {
    animation: slideInUp 0.6s ease;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}