/* Header & Navigation */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 1.5rem 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--grid-line);
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.02em;
    color: var(--premium-silver);
}

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

.nav-links a {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--premium-silver);
    opacity: 0.7;
    position: relative;
    padding: 0.5rem;
    /* Touch target padding */
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--premium-gold);
    transition: width 0.3s ease;
}

.nav-links a:hover {
    opacity: 1;
    color: var(--premium-gold);
}

.nav-links a:hover::after {
    width: 100%;
}

/* Responsive Navigation */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--premium-silver);
    cursor: pointer;
    padding: 0.5rem;
    z-index: 101;
}

.mobile-menu-toggle .material-symbols-outlined {
    font-size: 2rem;
    transition: color 0.3s ease;
}

.mobile-menu-toggle:hover .material-symbols-outlined {
    color: var(--premium-gold);
}

@media (max-width: 768px) {
    .site-header {
        padding: 1rem 0;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        /* Hidden by default on mobile */
        position: absolute;
        top: 100%;
        right: 0;
        width: 250px;
        /* Or 100% if preferred, but user asked for top-right */
        background: var(--bg-secondary);
        border: 1px solid var(--grid-line);
        border-top: none;
        /* Seamless with header */
        flex-direction: column;
        padding: 1rem;
        gap: 0;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
        backdrop-filter: blur(10px);
        /* Animation */
        opacity: 0;
        transform: translateY(-10px);
        transition: opacity 0.3s ease, transform 0.3s ease;
        pointer-events: none;
    }

    .nav-links.nav-active {
        display: flex;
        opacity: 1;
        transform: translateY(0);
        pointer-events: all;
    }

    .nav-links li {
        width: 100%;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .nav-links li:last-child {
        border-bottom: none;
    }

    .nav-links a {
        display: block;
        font-size: 1rem;
        padding: 1rem;
        text-align: right;
        /* Align text to right as per top-right feel */
    }

    .nav-links a:hover {
        background: rgba(212, 175, 55, 0.05);
        padding-right: 1.5rem;
        /* Slide effect on hover */
        transition: padding 0.3s ease;
    }

    .nav-links a::after {
        display: none;
        /* Remove underline effect on mobile */
    }
}

@media (min-width: 2560px) {
    .site-header {
        padding: 2.5rem 0;
    }

    .logo {
        font-size: 2.5rem;
    }

    .nav-links {
        gap: 4rem;
    }

    .nav-links a {
        font-size: 1.2rem;
    }
}