:root {
    --farbe-primaer: #4f46e5;
    --farbe-text: #26303d;
    --farbe-hintergrund: #f5f6fa;
    --radius: 10px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, "Segoe UI", Arial, sans-serif;
    background: var(--farbe-hintergrund);
    color: var(--farbe-text);
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 24px;
    background: #ffffff;
    border-bottom: 1px solid #e5e7eb;
}

.topbar-titel {
    font-weight: 700;
    color: var(--farbe-primaer);
}

.topbar-user {
    font-size: 14px;
    color: #6b7280;
}

.inhalt {
    max-width: 720px;
    margin: 32px auto;
    padding: 0 16px;
}

.karte {
    background: #ffffff;
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.button {
    display: inline-block;
    background: var(--farbe-primaer);
    color: #ffffff;
    border: none;
    border-radius: var(--radius);
    padding: 10px 18px;
    font-size: 14px;
    cursor: pointer;
}

.button:hover { opacity: 0.9; }

.hinweis {
    padding: 10px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
}

.hinweis-success { background: #dcfce7; color: #166534; }
.hinweis-danger { background: #fee2e2; color: #991b1b; }