/* ========== STAFF'S Ratgeber – shared styling ========== */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --color-black: #111111;
    --color-white: #ffffff;
    --color-light-gray: #f7f7f7;
    --color-border: #e6e6e6;
    --color-dark-gray: #555555;
    --color-medium-gray: #888888;
    --font-display: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --shadow: 0 2px 15px rgba(0,0,0,0.06);
    --shadow-strong: 0 6px 30px rgba(0,0,0,0.10);
    --space-sm: 16px;
    --space-md: 24px;
    --space-lg: 32px;
    --space-xl: 48px;
    --space-2xl: 64px;
}

html { scroll-behavior: smooth; }
body {
    font-family: var(--font-body);
    background: var(--color-white);
    color: #222222;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.container { max-width: 820px; margin: 0 auto; padding: 0 var(--space-md); }
.container-wide { max-width: 1100px; margin: 0 auto; padding: 0 var(--space-md); }

/* ===== Header ===== */
.site-header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}
.site-header .bar {
    display: flex; align-items: center; justify-content: space-between;
    height: 68px;
}
.brand {
    font-family: var(--font-display);
    font-weight: 800; font-size: 1.05rem; letter-spacing: 0.02em;
    color: var(--color-black); text-decoration: none;
}
.brand span { font-weight: 400; color: var(--color-medium-gray); }
.header-cta {
    font-family: var(--font-display); font-weight: 600; font-size: 0.9rem;
    background: var(--color-black); color: #fff; text-decoration: none;
    padding: 10px 20px; border-radius: 4px; transition: opacity .2s ease;
}
.header-cta:hover { opacity: 0.85; }

/* ===== Breadcrumb ===== */
.breadcrumb {
    font-size: 0.85rem; color: var(--color-medium-gray);
    padding: var(--space-md) 0 0;
}
.breadcrumb a { text-decoration: none; color: var(--color-medium-gray); }
.breadcrumb a:hover { color: var(--color-black); }

/* ===== Article ===== */
.article-head { padding: var(--space-lg) 0 var(--space-md); }
.article-label {
    font-family: var(--font-display); font-weight: 600; font-size: 0.8rem;
    letter-spacing: 0.15em; text-transform: uppercase; color: var(--color-medium-gray);
    margin-bottom: var(--space-sm);
}
.article h1 {
    font-family: var(--font-display); font-weight: 800;
    font-size: clamp(1.8rem, 4vw, 2.6rem); line-height: 1.2;
    color: var(--color-black); margin-bottom: var(--space-md);
}
.article .meta { font-size: 0.85rem; color: var(--color-medium-gray); margin-bottom: var(--space-lg); }
.article .lead { font-size: 1.15rem; color: var(--color-dark-gray); margin-bottom: var(--space-lg); }
.article h2 {
    font-family: var(--font-display); font-weight: 700;
    font-size: 1.5rem; color: var(--color-black);
    margin: var(--space-xl) 0 var(--space-sm);
}
.article h3 {
    font-family: var(--font-display); font-weight: 600;
    font-size: 1.15rem; color: var(--color-black);
    margin: var(--space-lg) 0 var(--space-sm);
}
.article p { margin-bottom: var(--space-md); }
.article ul, .article ol { margin: 0 0 var(--space-md) 1.4em; }
.article li { margin-bottom: 8px; }
.article strong { color: var(--color-black); }

.callout {
    background: var(--color-light-gray);
    border-left: 4px solid var(--color-black);
    border-radius: 6px;
    padding: var(--space-md) var(--space-lg);
    margin: var(--space-lg) 0;
}
.callout p { margin: 0; }

/* ===== CTA box ===== */
.cta-box {
    background: var(--color-black); color: #fff;
    border-radius: 10px; padding: var(--space-xl);
    text-align: center; margin: var(--space-2xl) 0;
}
.cta-box h2 { color: #fff; margin-top: 0; }
.cta-box p { color: rgba(255,255,255,0.75); margin-bottom: var(--space-lg); }
.cta-box .btn {
    display: inline-block; background: #fff; color: var(--color-black);
    font-family: var(--font-display); font-weight: 600; text-decoration: none;
    padding: 14px 32px; border-radius: 4px; transition: transform .2s ease;
}
.cta-box .btn:hover { transform: translateY(-2px); }

/* ===== FAQ ===== */
.faq-item {
    border: 1px solid var(--color-border); border-radius: 8px;
    margin-bottom: var(--space-sm); overflow: hidden; box-shadow: var(--shadow);
    background: #fff;
}
.faq-item summary {
    list-style: none; cursor: pointer; padding: var(--space-md);
    font-family: var(--font-display); font-weight: 600; color: var(--color-black);
    display: flex; justify-content: space-between; align-items: center; gap: var(--space-sm);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 1.5rem; font-weight: 300; color: var(--color-medium-gray); transition: transform .25s ease; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-answer { padding: 0 var(--space-md) var(--space-md); color: var(--color-dark-gray); }

/* ===== Article cards (hub) ===== */
.hub-head { padding: var(--space-2xl) 0 var(--space-lg); text-align: center; }
.hub-head h1 { font-family: var(--font-display); font-weight: 800; font-size: clamp(2rem,5vw,3rem); color: var(--color-black); margin-bottom: var(--space-md); }
.hub-head p { font-size: 1.1rem; color: var(--color-dark-gray); max-width: 640px; margin: 0 auto; }
.hub-copy {
    padding: 0 var(--space-md) var(--space-lg);
}
.hub-copy h2 {
    font-family: var(--font-display);
    font-size: 1.45rem;
    line-height: 1.25;
    color: var(--color-black);
    margin-bottom: var(--space-sm);
}
.hub-copy p {
    color: var(--color-dark-gray);
    margin-bottom: var(--space-md);
}
.hub-copy ul {
    margin: 0 0 var(--space-md) 1.2em;
    color: var(--color-dark-gray);
}
.hub-copy li {
    margin-bottom: 8px;
}
.card-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg); padding: var(--space-lg) 0 var(--space-2xl);
}
.post-card {
    display: flex; flex-direction: column;
    background: #fff; border: 1px solid var(--color-border); border-radius: 10px;
    padding: var(--space-lg); text-decoration: none; color: inherit;
    box-shadow: var(--shadow); transition: transform .2s ease, box-shadow .2s ease;
}
.post-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-strong); }
.post-card .tag { font-family: var(--font-display); font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-medium-gray); margin-bottom: 12px; }
.post-card h2 { font-family: var(--font-display); font-weight: 700; font-size: 1.25rem; color: var(--color-black); margin-bottom: 12px; line-height: 1.3; }
.post-card p { color: var(--color-dark-gray); font-size: 0.95rem; margin-bottom: var(--space-md); flex: 1; }
.post-card .more { font-family: var(--font-display); font-weight: 600; font-size: 0.9rem; color: var(--color-black); }

/* ===== Footer ===== */
.site-footer { background: var(--color-black); color: rgba(255,255,255,0.7); margin-top: var(--space-2xl); padding: var(--space-2xl) 0; font-size: 0.9rem; }
.site-footer .cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: var(--space-lg); }
.site-footer h4 { font-family: var(--font-display); color: #fff; font-size: 0.95rem; margin-bottom: 12px; }
.site-footer a { color: rgba(255,255,255,0.7); text-decoration: none; }
.site-footer a:hover { color: #fff; }
.site-footer .legal { border-top: 1px solid rgba(255,255,255,0.15); margin-top: var(--space-lg); padding-top: var(--space-md); font-size: 0.8rem; color: rgba(255,255,255,0.5); }

/* ===== Article images ===== */
.article-img {
    width: 100%; border-radius: 10px;
    margin: var(--space-lg) 0;
    display: block; object-fit: cover;
    max-height: 420px;
    box-shadow: var(--shadow);
}

@media (max-width: 600px) {
    .site-header .bar { height: 60px; }
    .header-cta { padding: 8px 14px; font-size: 0.8rem; }
    .brand { font-size: 0.95rem; }
    .hub-head h1 { font-size: 1.85rem; }
}