/**
 * Components CSS
 * Chứa các thành phần dùng chung cho toàn bộ trang web
 */

/* ===== HEADER ===== */
header {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
}

.logo h1 {
    font-size: 24px;
    color: var(--primary);
    margin-left: 10px;
}

.logo img {
    height: 40px;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-link {
    font-weight: 500;
    position: relative;
    padding-bottom: 5px;
}

.nav-link:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: width 0.3s;
}

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

.auth-buttons {
    display: flex;
    gap: 15px;
}

/* ===== FOOTER ===== */
footer {
    background-color: var(--dark);
    color: white;
    padding: 50px 0 20px;
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.footer-column h5 {
    font-size: 18px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h5:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: var(--primary);
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ===== BUTTONS ===== */
.btn {
    padding: 10px 20px;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.3s;
    cursor: pointer;
    display: inline-block;
}

.btn-outline {
    border: 1.5px solid var(--primary);
    color: var(--primary);
}

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

.btn-primary {
    background-color: var(--primary);
    color: white;
    border: 1.5px solid var(--primary);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

/* ===== CARDS ===== */
.card {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform 0.3s;
}

.card:hover {
    transform: translateY(-5px);
}

.card-header {
    padding: 20px;
    border-bottom: 1px solid var(--gray-light);
}

.card-body {
    padding: 20px;
}

.card-footer {
    padding: 15px 20px;
    background-color: var(--light);
    border-top: 1px solid var(--gray-light);
}

/* ===== MOBILE MENU ===== */
.mobile-toggle {
    display: none;
    font-size: 24px;
    cursor: pointer;
}

/* ===== RESPONSIVE STYLES ===== */
@media (max-width: 992px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        background-color: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 10px rgba(0, 0, 0, 0.1);
        z-index: 100;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-toggle {
        display: block;
    }
}

@media (max-width: 768px) {
    .auth-buttons {
        flex-direction: column;
        gap: 10px;
    }
}

@media (max-width: 576px) {
    .footer-container {
        grid-template-columns: 1fr;
    }
}