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

/* SMOOTH SCROLL */
html {
    scroll-behavior: smooth;
}

body {
    background: #000;
    letter-spacing: 0.5px;
}

/* NAVBAR */
.navbar {
    position: fixed;
    width: 100%;
    top: 0;
    padding: 15px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;

    background: transparent;
    transition: all 0.3s ease;
    z-index: 1000;
}

/* SCROLL EFFECT */
.navbar.scrolled {
    background: #222;
    box-shadow: 0 2px 8px rgba(0,0,0,0.4);
}

/* LOGO */
.logo {
    color: #fff;
    font-size: 20px;
    font-weight: bold;
}

/* NAV LINKS */
.nav-links {
    list-style: none;
    display: flex;
    gap: 30px;
}

.nav-links li a {
    text-decoration: none;
    color: #fff;
    font-size: 15px;
    transition: all 0.3s ease;
}

/* HOVER + ACTIVE */
.nav-links li a:hover,
.nav-links li a.active {
    color: #00bcd4;
}

/* HAMBURGER */
.menu-toggle {
    display: none;
    font-size: 22px;
    color: white;
    cursor: pointer;
}

/* MOBILE */
@media (max-width: 768px) {
    .nav-links {
        position: absolute;
        top: 60px;
        right: 0;
        background: #222;
        width: 180px;
        flex-direction: column;
        text-align: center;
        display: none;
    }

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

    .menu-toggle {
        display: block;
    }
}

/* SECTIONS */
.section {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 28px;
}

/* UPDATED BACKGROUNDS (Clean & Modern) */
#home { background: #0f2027; }
#about { background: #203a43; }
#services { background: #2c5364; }
#contact { background: #1c1c1c; }