:root {
    color-scheme: light dark;

    --accent: #0a7a86;
    --text: #14231f;
    --text-muted: #5c6b68;
    --surface: #ffffff;
    --page: #f4f8f8;
    --border: #dde6e6;
    --measure: 42rem;
}

@media (prefers-color-scheme: dark) {
    :root {
        --accent: #63d3dd;
        --text: #e8efee;
        --text-muted: #9aabaa;
        --surface: #16201f;
        --page: #0e1615;
        --border: #26302f;
    }
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0 1.25rem 5rem;
    background: var(--page);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
    font-size: 17px;
    line-height: 1.65;
    -webkit-text-size-adjust: 100%;
}

.wrap {
    max-width: var(--measure);
    margin: 0 auto;
}

header {
    padding: 3rem 0 2rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2.5rem;
}

header p {
    margin: 0.35rem 0 0;
    color: var(--text-muted);
}

h1 {
    font-size: 2rem;
    line-height: 1.2;
    margin: 0;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 1.35rem;
    line-height: 1.3;
    margin: 2.75rem 0 0.75rem;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.05rem;
    margin: 1.75rem 0 0.4rem;
}

p,
ul {
    margin: 0 0 1rem;
}

ul {
    padding-left: 1.25rem;
}

li {
    margin-bottom: 0.35rem;
}

a {
    color: var(--accent);
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
}

em {
    color: var(--text-muted);
    font-style: normal;
    font-size: 0.9rem;
}

/* Kacheln auf der Übersichtsseite */
.cards {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
    margin: 2rem 0;
}

.card {
    display: block;
    padding: 1.25rem 1.4rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    text-decoration: none;
    color: inherit;
}

.card:hover {
    border-color: var(--accent);
}

.card strong {
    display: block;
    font-weight: 600;
    margin-bottom: 0.2rem;
}

.card span {
    color: var(--text-muted);
    font-size: 0.92rem;
}

/* Hilfe-Clips. Hochformat, deshalb schmal gehalten — sonst füllt ein
   Bildschirmvideo die halbe Seite und drängt den Text weg. */
.clip {
    margin: 1.25rem 0 1.75rem;
    max-width: 17rem;
}

.clip video {
    display: block;
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: var(--surface);
}

.clip figcaption {
    margin-top: 0.5rem;
    color: var(--text-muted);
    font-size: 0.88rem;
}

footer {
    margin-top: 4rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.88rem;
}

footer a {
    margin-right: 1rem;
}