/* Custom Styles */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
}

/* General Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

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

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

/* Cards */
.card {
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

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

/* Product Cards */
.product-card {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.product-card .card-img-top {
    height: 200px;
    object-fit: cover;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
}

.product-card .card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-card .card-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Buttons */
.btn {
    border-radius: 5px;
    font-weight: 500;
    transition: all 0.3s;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* Forms */
.form-control, .form-select {
    border-radius: 5px;
    border: 1px solid #dee2e6;
    padding: 0.5rem 0.75rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13,110,253,0.25);
}

/* Tables */
.table {
    background: white;
    border-radius: 10px;
    overflow: hidden;
}

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

/* Alerts */
.alert {
    border-radius: 10px;
    border: none;
}

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

footer a {
    text-decoration: none;
    transition: color 0.3s;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .navbar-brand {
        font-size: 1.2rem;
    }
    
    .product-card .card-img-top {
        height: 150px;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .table {
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding-left: 15px;
        padding-right: 15px;
    }
    
    .product-card .card-img-top {
        height: 120px;
    }
    
    .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }
}

/* Loading Spinner */
.spinner {
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

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

/* 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 {
    animation: slideIn 0.5s ease-out;
}

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #0b5ed7;
}