/* src/header.css */

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

.header-menu {
    display: flex;
    align-items: center;
    justify-content: center;
    list-style: none;
    padding: 0;
    margin: 0;
    /* Responsive gap: 40px on large screens, scales down */
    gap: clamp(15px, 3.8vw, 97px);
}

.header-menu li,
.header-menu a {
    margin: 0 !important;
    padding: 0 !important;
}

.header-link {
    color: #0f172a;
    /* navy/slate-900 */
    text-decoration: none;
    font-weight: 500;
    font-size: clamp(14px, 1.1vw, 16px);
    transition: all 0.3s ease;
    white-space: nowrap;
    position: relative;
    padding: 10px 0;
}

.header-link:hover {
    color: #c9171e;
}

/* Nút đỏ kiểu viên thuốc chuẩn ảnh */
.header-btn-red {
    display: inline-block;
    padding: clamp(8px, 0.8vw, 12px) clamp(25px, 2.5vw, 40px);
    background-color: #c9171e;
    color: white;
    font-weight: bold;
    font-size: clamp(14px, 1.1vw, 16px);
    text-decoration: none;
    border-radius: 9999px;
    transition: all 0.3s ease;
    text-align: center;
    line-height: 1.4;
}

.header-btn-red:hover {
    background-color: #e31a22;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(201, 23, 30, 0.2);
}

/* Mobile Menu Button */
.mobile-toggle {
    display: none;
}

@media (max-width: 1023px) {
    .mobile-toggle {
        display: block;
    }
}