/* Global Styles */
:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
    line-height: 1.6;
}

/* Navigation */
.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    font-weight: 500;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 15px;
    color: white;
}

.hero-section h1 {
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

/* Product Cards */
.product-card {
    transition: all 0.3s ease;
    border: none;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    border-radius: 10px;
    overflow: hidden;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

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

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

.product-card .price {
    font-size: 1.25rem;
    font-weight: bold;
}

/* Category Cards */
.category-card {
    transition: all 0.3s ease;
    border: none;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    border-radius: 10px;
    height: 100%;
}

.category-card:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.category-card .card-body {
    padding: 1.5rem;
}

.text-pink {
    color: #e83e8c;
}

/* Buttons */
.btn {
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(45deg, #007bff, #0056b3);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,123,255,0.3);
}

.btn-success {
    background: linear-gradient(45deg, #28a745, #1e7e34);
    border: none;
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(40,167,69,0.3);
}

/* Forms */
.form-control {
    border-radius: 8px;
    border: 2px solid #e9ecef;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0,123,255,0.25);
}

.input-group-text {
    border-radius: 8px 0 0 8px;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #2c3e50, #34495e);
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 3rem;
}

.footer h5 {
    color: #ecf0f1;
    margin-bottom: 1rem;
}

.footer a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.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;
    transition: all 0.3s ease;
}

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

/* Notification */
#notification {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 1050;
    min-width: 300px;
}

/* Breadcrumb */
.breadcrumb {
    background-color: transparent;
    padding: 0.75rem 0;
}

.breadcrumb-item a {
    color: var(--primary-color);
    text-decoration: none;
}

/* Product Page */
.product-title {
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.price-section .price {
    font-size: 2rem;
    font-weight: 700;
}

.quantity-controls .btn {
    width: 45px;
}

/* Carousel */
.carousel-item img {
    border-radius: 10px;
}

.cursor-pointer {
    cursor: pointer;
}

/* Badges */
.badge {
    font-size: 0.75em;
    padding: 0.5em 0.75em;
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar-nav .dropdown-menu {
        position: static;
        float: none;
        margin-top: 0.5rem;
    }
    
    .hero-section {
        text-align: center;
        padding: 2rem !important;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .product-card .card-img-top {
        height: 150px;
    }
    
    .category-card {
        margin-bottom: 1rem;
    }
    
    .footer .row > div {
        margin-bottom: 2rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding-left: 15px;
        padding-right: 15px;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1rem;
        font-size: 1rem;
    }
    
    .price-section .price {
        font-size: 1.5rem;
    }
}

/* Admin Styles */
.sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
    padding: 48px 0 0;
    box-shadow: inset -1px 0 0 rgba(0, 0, 0, .1);
    background-color: #f8f9fa;
}

.sidebar-sticky {
    position: relative;
    top: 0;
    height: calc(100vh - 48px);
    padding-top: .5rem;
    overflow-x: hidden;
    overflow-y: auto;
}

.sidebar .nav-link {
    color: #333;
    padding: 0.75rem 1rem;
    border-radius: 0.375rem;
    margin: 0.125rem 0.5rem;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    background-color: var(--primary-color);
    color: white;
}

.sidebar .nav-link i {
    margin-right: 0.5rem;
    width: 20px;
    text-align: center;
}

/* Print Styles for Receipts */
@media print {
    .no-print {
        display: none !important;
    }
    
    .receipt {
        border: none !important;
        box-shadow: none !important;
        max-width: 100% !important;
    }
    
    body {
        background: white !important;
        font-size: 12pt;
    }
    
    .container {
        max-width: 100% !important;
        padding: 0 !important;
    }
}

/* Loading Spinner */
.loading-spinner {
    display: inline-block;
    width: 2rem;
    height: 2rem;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Utility Classes */
.text-shadow {
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.box-shadow {
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.box-shadow-hover {
    transition: box-shadow 0.3s ease;
}

.box-shadow-hover:hover {
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-in-left {
    animation: slideInLeft 0.5s ease-out;
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-50px); }
    to { opacity: 1; transform: translateX(0); }
}