/* ============================================
   HEADER.CSS - Glassmorphism Navigation
   ============================================ */

header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 12, 41, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 4px 30px var(--glass-shadow);
    z-index: 100;
    padding: 1rem 2rem;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    height: 50px;
}

.logo img {
    height: 100%;
    width: auto;
    filter: drop-shadow(0 0 8px rgba(196, 113, 237, 0.4));
    transition: filter 0.3s ease;
}

.logo img:hover {
    filter: drop-shadow(0 0 15px rgba(196, 113, 237, 0.7));
}

nav ul {
    display: flex;
    gap: 2rem;
    list-style: none;
}

nav a {
    font-family: 'MetalMania', 'Oswald', sans-serif;
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
    background: linear-gradient(0deg, #FF3891, #F3D40F);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: opacity 0.3s ease;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-pink), var(--accent-purple), var(--accent-blue));
    border-radius: 2px;
    transition: width 0.3s ease;
}

nav a:hover {
    opacity: 0.8;
}

nav a:hover::after {
    width: 100%;
}

/* ===================
   HEADER RESPONSIVE
   =================== */
@media (max-width: 768px) {
    header {
        padding: 0.5rem 1rem;
    }

    nav {
        flex-direction: column;
        gap: 0.5rem;
    }

    .logo {
        height: 40px;
    }

    nav ul {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.8rem 1.5rem;
    }

    nav a {
        font-size: 0.9rem;
        letter-spacing: 1px;
    }
}

@media (max-width: 480px) {
    header {
        padding: 0.4rem 0.8rem;
    }

    .logo {
        height: 35px;
    }

    nav ul {
        gap: 0.5rem 1rem;
    }

    nav a {
        font-size: 0.8rem;
    }
}