/* 
 * Saigon Bảo Tín - Header Styles
 * Pure CSS Implementation
 */

.site-header {
    background-color: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--border-color);
    height: 100px;
    position: sticky;
    top: 0;
    z-index: 999;
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    transition: var(--transition);
}

@media (min-width: 768px) {
    .site-header {
        height: 128px;
    }
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

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

.site-logo img {
    height: 64px;
    width: auto;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.site-logo:hover img {
    transform: scale(1.05);
}

@media (min-width: 768px) {
    .site-logo img {
        height: 80px;
    }
}

.main-nav {
    display: none;
}

@media (min-width: 768px) {
    .main-nav {
        display: block;
    }
}

.nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 3rem;
}

.nav-list li a {
    text-decoration: none;
    color: var(--text-dark);
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition);
    position: relative;
    white-space: nowrap;
    display: block;
}

.nav-list li a:hover {
    color: var(--primary);
}

.nav-list li.current-menu-item a,
.nav-list li.current_page_item a {
    color: var(--primary);
    font-weight: 700;
}

.nav-list li.current-menu-item a::after,
.nav-list li.current_page_item a::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 0;
    width: 100%;
    height: 3.5px;
    background-color: var(--primary);
    border-radius: 50px;
}

.header-actions {
    display: none;
    align-items: center;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .header-actions {
        display: flex;
    }
}

.btn-track {
    background-color: var(--primary);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 6px -1px rgba(18, 105, 226, 0.1);
}

.btn-track:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(18, 105, 226, 0.2);
}

.profile-icon {
    width: 48px;
    height: 48px;
    background-color: #f1f5f9;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    color: #475569;
}

.profile-icon:hover {
    background-color: #e2e8f0;
}

.mobile-toggle {
    display: block;
    background: none;
    border: none;
    color: var(--text-dark);
    padding: 0.5rem;
    cursor: pointer;
}

@media (min-width: 768px) {
    .mobile-toggle {
        display: none;
    }
}