:root {
    --color-bg: #f5f6f8;
    --color-surface: #ffffff;
    --color-border: #e4e7ec;
    --color-text: #1a1d23;
    --color-text-muted: #6b7280;
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-primary-soft: #eff4ff;
    --color-success: #16a34a;
    --color-success-soft: #ecfdf3;
    --color-danger: #dc2626;
    --color-danger-soft: #fef2f2;
    --color-warning: #d97706;
    --color-warning-soft: #fffaeb;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06);
    --shadow-md: 0 4px 12px rgba(16, 24, 40, 0.08);
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

h1, h2, h3, h4 {
    margin: 0 0 0.5rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

p {
    margin: 0 0 1rem;
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
}

.card + .card {
    margin-top: 1.25rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.6rem 1.1rem;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
    text-decoration: none;
    line-height: 1.2;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    text-decoration: none;
}

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-bg);
    text-decoration: none;
}

.btn-danger {
    background: var(--color-danger-soft);
    color: var(--color-danger);
}

.btn-danger:hover {
    background: #fde2e2;
    text-decoration: none;
}

.btn-sm {
    padding: 0.35rem 0.7rem;
    font-size: 0.8rem;
}

.btn-block {
    width: 100%;
}

.form-group {
    margin-bottom: 1.1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text);
}

.form-hint {
    font-size: 0.78rem;
    color: var(--color-text-muted);
    margin-top: 0.3rem;
}

.form-control {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.92rem;
    font-family: inherit;
    background: var(--color-surface);
    color: var(--color-text);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-soft);
}

.form-control.has-error {
    border-color: var(--color-danger);
}

.form-error {
    color: var(--color-danger);
    font-size: 0.8rem;
    margin-top: 0.3rem;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

@media (max-width: 640px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success { background: var(--color-success-soft); color: var(--color-success); }
.badge-danger { background: var(--color-danger-soft); color: var(--color-danger); }
.badge-warning { background: var(--color-warning-soft); color: var(--color-warning); }
.badge-muted { background: #f1f2f4; color: var(--color-text-muted); }
.badge-primary { background: var(--color-primary-soft); color: var(--color-primary); }
.badge-info { background: #e0f2fe; color: #0369a1; }
.badge-purple { background: #f3e8ff; color: #7c3aed; }

.alert {
    padding: 0.85rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.88rem;
    margin-bottom: 1.25rem;
    border: 1px solid transparent;
}

.alert-danger {
    background: var(--color-danger-soft);
    color: #991b1b;
    border-color: #fecaca;
}

.alert-success {
    background: var(--color-success-soft);
    color: #166534;
    border-color: #bbf7d0;
}

.alert-info {
    background: var(--color-primary-soft);
    color: #1e40af;
    border-color: #bfdbfe;
}

table.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

table.data-table th,
table.data-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

table.data-table th {
    color: var(--color-text-muted);
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

table.data-table tbody tr:hover {
    background: var(--color-bg);
}

.empty-state {
    text-align: center;
    padding: 3rem 1.5rem;
    color: var(--color-text-muted);
}

.empty-state .empty-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
    opacity: 0.6;
}

/* Wochenkalender-Raster - gemeinsam von Admin- und öffentlichem Kalender genutzt */
.calendar-week {
    display: grid;
    /* minmax(0, 1fr) statt 1fr - sonst zwingt ein langer, nicht umbrechender
       Termin-Text seine Spalte breiter als 1fr und quetscht die Nachbartage. */
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 0.75rem;
}

@media (max-width: 900px) {
    .calendar-week {
        grid-template-columns: 1fr;
    }
}