* {
    margin : 0;
    padding : 0;
    box-sizing : border-box;
    font-family: Poppins, sans-serif;
}

body {
    background: linear-gradient(135deg, #020617, #0f172a, #020617);
    height: 200vh;
    color: white;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 15px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 1100px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    border-radius: 20px;

    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);

    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    z-index: 999;
}

.logo {
    font-weight: 600;
    font-size: 18px;
    letter-spacing: 1px;
}

/* Menu */
.nav-menu {
    list-style: none;
    display: flex;
    gap: 25px;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    font-size: 14px;
    opacity: 0.8;
    transition: 0.3s;
}

.nav-menu a:hover {
    opacity: 1;
    color: #38bdf8;
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    width: 28px;
    cursor: pointer;
}

.hamburger span {
    background: white;
    height: 3px;
    margin: 4px 0;
    border-radius: 5px;
    transition: 0.3s ease;
}

/* Hamburger Animasi X*/
.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Responsive Mobile */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 70px;
        right: 0;
        background: rgba(15, 23, 42, 0.9);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 15px 20px;
        border-radius: 15px;
        display: none;
    }

    .nav-menu.active {
        display: flex;
    }
}