/* ============================================
   COMPONENTS.CSS - BUTTONS, CARDS, NAVBAR, FOOTER
   Tái sử dụng trên nhiều trang
   ============================================ */

/* === BUTTONS === */
.btn-primary {
    background-color: var(--primary-color);
    border: none;
    padding: 12px 28px;
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
    font-weight: var(--font-weight-medium);
    color: white;
    display: inline-block;
    text-align: center;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
    color: white;
}

.btn-outline-light {
    border: 2px solid white;
    background: transparent;
    color: white;
    padding: 12px 28px;
    border-radius: var(--radius-xl);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-normal);
    display: inline-block;
    text-align: center;
}

.btn-outline-light:hover {
    background: white;
    color: var(--primary-color);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 8px 20px;
    font-size: 0.9rem;
}

/* === NAVBAR === */
.navbar {
    background-color: var(--bg-white);
    box-shadow: var(--shadow-sm);
    border-bottom: 2px solid var(--secondary-color);
    padding: 1rem 0;
}

.navbar-brand, .nav-link, .dropdown-item {
    color: var(--primary-color) !important;
    font-weight: var(--font-weight-bold);
}

.nav-link {
    position: relative;
    padding: 0.5rem 1rem;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: width var(--transition-normal);
}

.nav-link:hover::after {
    width: 100%;
}

/* === FOOTER === */
.footer {
    background-color: var(--bg-white);
    color: var(--primary-color);
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-color);
}

.footer a {
    color: var(--text-dark);
    text-decoration: none;
    transition: all var(--transition-normal);
}

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

.footer h5 {
    font-weight: var(--font-weight-bold);
    margin-bottom: 20px;
    color: var(--primary-color);
}

.footer .menu-links a {
    display: block;
    margin-bottom: 8px;
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    margin-top: 30px;
    padding-top: 15px;
    text-align: center;
    font-size: 14px;
    color: var(--text-muted);
}

/* === PRODUCT CARD (DÙNG CHUNG) === */
.product-card {
    border: none;
    box-shadow: var(--shadow-sm);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    background-color: var(--bg-white);
    height: 100%;
}

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

.product-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: opacity var(--transition-normal), transform var(--transition-slow);
}

.product-card:hover img {
    opacity: 0.9;
    transform: scale(1.05);
}

.product-card .card-body {
    padding: 20px;
}

.product-card .card-title {
    font-size: 1.1rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-dark);
    margin: 0;
    transition: color var(--transition-normal);
}

.product-card:hover .card-title {
    color: var(--primary-color);
}

.product-card .price {
    color: var(--secondary-color);
    font-weight: var(--font-weight-bold);
    margin-top: 10px;
    font-size: 1rem;
}

/* === PAGINATION === */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 50px;
}

.pagination .page-link {
    color: var(--primary-color);
    border-radius: var(--radius-sm);
    padding: 8px 15px;
}

.pagination .page-item.active .page-link {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* === FORM ELEMENTS === */
.form-control {
    border-radius: var(--radius-sm);
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 5px rgba(232, 93, 143, 0.3);
    outline: none;
}

/* === LOADING SPINNER === */
.loading-spinner {
    text-align: center;
    padding: 40px;
}

.loading-spinner::after {
    content: '';
    width: 40px;
    height: 40px;
    border: 4px solid var(--primary-light);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    display: inline-block;
    animation: spin 1s linear infinite;
}

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

/* === PAGINATION WRAPPER === */
.pagination-wrapper {
    display: flex;
    justify-content: center;
    margin-top: 40px;
}

.pagination {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.pagination .page-item {
    list-style: none;
}

.pagination .page-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    color: var(--text-dark);
    border-radius: 10px;
    transition: all 0.3s ease;
    font-weight: 500;
    text-decoration: none;
}

.pagination .page-link:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.pagination .active .page-link {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.pagination .disabled .page-link {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

@media (max-width: 576px) {
    .pagination .page-link {
        min-width: 35px;
        height: 35px;
        font-size: 0.85rem;
        padding: 0 8px;
    }
}