/* Zentrales Stylesheet (Layout, Farben, Komponenten) */

:root {
    font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
    color: #1f1f1f;
    background-color: #f4f5f7;
}

body {
    margin: 0;
    background-color: #f4f5f7;
}

.app-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    padding: 18px 32px;
    background: linear-gradient(90deg, #0a3d62, #1d6fa5);
    color: white;
    gap: 20px;
    position: sticky;
    top: 0;
    z-index: 10;
    box-shadow: 0 4px 20px rgba(15, 26, 45, 0.25);
}

.app-header__brand {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.app-header__eyebrow {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: rgba(255, 255, 255, 0.65);
}

.app-header__title {
    margin: 0;
    font-size: 1.8rem;
    font-weight: 600;
    line-height: 1.2;
}

.main-nav__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 12px;
}

.main-nav__item {
    border-radius: 999px;
}

.main-nav__link {
    display: block;
    padding: 10px 16px;
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-weight: 500;
}

.main-nav__item.active .main-nav__link,
.main-nav__link:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
}

main {
    padding: 24px 32px 48px;
}

@media (max-width: 900px) {
    .app-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .main-nav__list {
        flex-wrap: wrap;
    }
}