:root {
    --bg-dark: #1f2933;
    --bg-light: #f4f6f8;
    --primary: #2563eb;
    --accent: #0ea5a4;
    --text-dark: #1f2933;
    --text-light: #ffffff;
    --text-muted: #6b7280;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
    background: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
}

header {
    background: linear-gradient(120deg, #1f2933, #111827);
    color: var(--text-light);
    padding: 5rem 1rem;
}

.container {
    max-width: 1200px;
    margin: auto;
    padding: 0 1rem;
}

h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

h3 {
    margin-bottom: .5rem;
}

p {
    margin-bottom: 1rem;
    color: var(--text-muted);
}

.hero p {
    color: #d1d5db;
    font-size: 1.2rem;
}

.btn {
    display: inline-block;
    margin-right: 1rem;
    margin-top: 1.5rem;
    padding: .8rem 1.5rem;
    background: var(--primary);
    bg-light: #5b9cdc;
    color: white;
    text-decoration: none;
    border-radius: .4rem;
    font-weight: 600;
}

.btn.secondary {
    background: transparent;
    border: 1px solid #9ca3af;
}

section {
    padding: 4rem 0;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.card {
    background: white;
    padding: 2rem;
    border-radius: .6rem;
    box-shadow: 0 10px 20px rgba(0,0,0,.05);
}

.steps .card {
    border-left: 4px solid var(--accent);
}

#main-footer {
    position: fixed;
    left: 300px;/*var(--sidebar-width);*/
    right: 0;
    bottom: 0;

    height: 24px;
    background: #bbbbbb;
    border-top: 1px solid #999;

    padding: 0 20px;
    line-height: 14px;
    font-size: 12px;

    overflow: hidden;
    opacity: 0;
    pointer-events: none;

    transition: height 0.25s ease, opacity 0.2s ease;
    z-index: 900;
}

/* sichtbar */
#main-footer.visible {
    height: 80px;
    line-height: 48px;
    opacity: 1;
    pointer-events: auto;
}

/*
#main-footer {
    flex-shrink: 0;
    height: 16px;
    overflow: hidden;
    background: #a91717;
    border-top: 1px solid #e7e7e7;
    transition: height 0.25s ease;
}

/* Inhalt */
#main-footer .footer-inner {
    padding: 10px 25px;
    line-height: 1.4;
}

/* Beim Hover sichtbar * /
#main-footer:hover {
    height: 60px;
}*/

/* Am Seitenende automatisch sichtbar */
body.scrolled-bottom #main-footer {
    height: 60px;
}

footer strong {
    color: white;
}