:root {
    --green-dark: #101b10;
    --green-mid:  #1e3a1e;
    --green-light:#2e5e2e;
    --green-accent:#4fa34f;
    --ink: #f0f0f0;
}

/* === NAVBAR BASIS === */
.topbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 24px;
    background: linear-gradient(
            90deg,
            var(--green-dark) 0%,
            var(--green-mid) 40%,
            var(--green-light) 100%
    );
    box-shadow: 0 2px 12px rgba(0,0,0,0.5);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    backdrop-filter: blur(4px);
    transition: all 0.5s ease;
}

/* Schimmer-Effekt */
.topbar::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
            120deg,
            rgba(255,255,255,0.10) 0%,
            rgba(255,255,255,0.03) 40%,
            rgba(255,255,255,0.00) 70%
    );
    opacity: 0.25;
    pointer-events: none;
    animation: shimmerMove 8s linear infinite;
}

@keyframes shimmerMove {
    from { transform: translateX(-30%); }
    to   { transform: translateX(30%); }
}

/* Scroll-Effekt */
.topbar.scrolled {
    background: linear-gradient(
            90deg,
            #0e160e 0%,
            #203520 40%,
            #2e4a2e 100%
    );
    box-shadow: 0 4px 14px rgba(0,0,0,0.7);
}

/* === BRAND === */
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    color: var(--ink);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.brand img {
    height: 42px;
    border-radius: 6px;
    filter: contrast(1.1) brightness(0.9);
}

/* === NAVIGATION (Desktop) === */
.nav {
    display: flex;
    gap: 16px;
}

.nav a {
    position: relative;
    text-decoration: none;
    color: var(--ink);
    padding: 8px 10px;
    font-weight: 500;
    transition: color .3s ease, transform .2s ease;
}

/* Unterstreichung */
.nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 0%;
    height: 3px;
    background: var(--green-accent);
    border-radius: 3px;
    transition: width .3s ease;
}

.nav a:hover::after,
.nav a.active::after {
    width: 100%;
}

.nav a:hover {
    color: var(--green-accent);
    transform: translateY(-1px);
}


/* === MOBILE BUTTON === */
.nav-toggle {
    display: none;
    font-size: 30px;
    cursor: pointer;
    color: var(--ink);
    padding: 6px 10px;
    border-radius: 6px;
    transition: background .3s ease;
}

.nav-toggle:hover {
    background: rgba(255,255,255,0.1);
}

/* === MOBILE MENÜ === */
@media (max-width: 768px) {

    .nav-toggle {
        display: block;
    }

    .nav {
        position: absolute;
        top: 70px;
        right: 20px;
        width: 220px;
        height: auto;

        background: linear-gradient(180deg, var(--green-dark), var(--green-mid));
        border: 1px solid rgba(255,255,255,0.15);
        box-shadow: 0 8px 20px rgba(0,0,0,0.7);
        border-radius: 12px;

        padding: 12px 0;
        flex-direction: column;
        gap: 6px;

        opacity: 0;
        pointer-events: none;
        transform: translateY(-15px);
        transition: all .35s ease;
        z-index: 999;
    }

    .nav.active {
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0);
    }

    .nav a {
        padding: 12px 18px;
        width: 100%;
        display: block;
    }

    .nav a::after {
        display: none; /* Unterstrich entfernen */
    }
}