/* เมนูบาร์ */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(to bottom, #1e90ff, #87cefa); /* ไล่สีฟ้า */
    padding: 15px 30px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 50px;
}
.logo {
    font-size: 2.5rem;
    font-weight: bold;
    color: rgb(120, 137, 230);
    text-decoration: none;
    letter-spacing: 2px;
    text-shadow: #87cefa 2px 2px 4px;
    width: 100%;
    background-image: linear-gradient(to left, #064369, #eceef0ad);
}


.nav-links {
    list-style: none;
    display: flex;
    gap: 20px;
}

.nav-links a {
    text-decoration: none;
    color: white;
    font-size: 1.1rem;
    font-weight: 500;
    transition: transform 0.2s, background 0.2s;
    padding: 8px 16px;
    border-radius: 8px;
}

.nav-links a:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* ตั้งค่าสำหรับเมนู dropdown */
.nav-links li.dropdown {
    position: relative;
}

.nav-links li .dropdown-menu {
    display: none;
    position: absolute;
    background-color: #fff;
    min-width: 220px;
    box-shadow: 0px 8px 16px rgba(0,0,0,0.1);
    z-index: 1;
}

.nav-links li .dropdown-menu li {
    display: block;
}

.nav-links li .dropdown-menu li a {
    padding: 10px;
    color: #333;
    text-decoration: none;
    display: block;
}

.nav-links li .dropdown-menu li a:hover {
    background-color: #f0f0f0;
}

/* แสดงเมนูเมื่อ hover */
.nav-links li.dropdown:hover .dropdown-menu {
    display: block;
}