/* ─── Design Tokens ──────────────────────────────────────────────────────── */
:root {
    --color-primary:          #2563eb;
    --color-primary-hover:    #1d4ed8;
    --color-primary-light:    #eff6ff;

    --color-page-bg:          #f1f5f9;
    --color-surface:          #ffffff;
    --color-border:           #e2e8f0;
    --color-border-light:     #f1f5f9;

    --color-text:             #0f172a;
    --color-text-secondary:   #475569;
    --color-text-muted:       #94a3b8;

    --color-success:          #16a34a;
    --color-warning:          #d97706;
    --color-danger:           #dc2626;
    --color-info:             #0284c7;

    --radius-sm:              4px;
    --radius:                 8px;
    --radius-lg:              12px;

    --shadow-sm:              0 1px 2px 0 rgba(0,0,0,.05);
    --shadow:                 0 1px 3px 0 rgba(0,0,0,.1), 0 1px 2px -1px rgba(0,0,0,.1);
    --shadow-md:              0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -2px rgba(0,0,0,.1);
}

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

html, body {
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-page-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ─── Typography ─────────────────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-text);
    letter-spacing: -0.01em;
}

h1 { font-size: 1.5rem; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.1rem; }

h1:focus { outline: none; }

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

a:hover {
    color: var(--color-primary-hover);
    text-decoration: underline;
}

/* ─── Content area ───────────────────────────────────────────────────────── */
.content {
    padding-top: 1.5rem;
    padding-bottom: 2rem;
}

/* ─── Cards ──────────────────────────────────────────────────────────────── */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 1.25rem;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ─── Buttons ────────────────────────────────────────────────────────────── */
.btn {
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    padding: 0.45rem 1rem;
    transition: background-color .15s ease, border-color .15s ease, box-shadow .15s ease;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
}

.btn:focus, .btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-check-input:focus {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .2);
}

.btn-link {
    color: var(--color-primary);
}

/* ─── Badges ─────────────────────────────────────────────────────────────── */
.badge {
    font-size: 0.75rem;
    font-weight: 500;
    padding: .3em .65em;
    border-radius: var(--radius-sm);
    letter-spacing: 0.01em;
}

/* ─── Alerts ─────────────────────────────────────────────────────────────── */
.alert {
    border-radius: var(--radius);
    border: 1px solid transparent;
    font-size: 0.875rem;
}

.alert-info {
    background-color: #eff6ff;
    border-color: #bfdbfe;
    color: #1e40af;
}

.alert-warning {
    background-color: #fffbeb;
    border-color: #fde68a;
    color: #92400e;
}

.alert-danger {
    background-color: #fef2f2;
    border-color: #fecaca;
    color: #991b1b;
}

.alert-success {
    background-color: #f0fdf4;
    border-color: #bbf7d0;
    color: #14532d;
}

/* ─── Forms ──────────────────────────────────────────────────────────────── */
.form-label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: .35rem;
}

.form-control, .form-select {
    font-size: 0.875rem;
    border-color: var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    background-color: var(--color-surface);
    transition: border-color .15s ease, box-shadow .15s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid var(--color-success);
}

.invalid {
    outline: 1px solid var(--color-danger);
}

.validation-message {
    color: var(--color-danger);
    font-size: 0.8125rem;
}

.form-floating > .form-control-plaintext::placeholder,
.form-floating > .form-control::placeholder {
    color: var(--color-text-muted);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder,
.form-floating > .form-control:focus::placeholder {
    text-align: start;
}

.darker-border-checkbox.form-check-input {
    border-color: #cbd5e1;
}

/* ─── Tables ─────────────────────────────────────────────────────────────── */
.table {
    font-size: 0.875rem;
    color: var(--color-text);
}

.table thead th {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-text-secondary);
    border-bottom: 2px solid var(--color-border);
    padding: .75rem 1rem;
}

.table td {
    padding: .65rem 1rem;
    border-color: var(--color-border-light);
    vertical-align: middle;
}

/* ─── Syncfusion overrides ───────────────────────────────────────────────── */
.e-grid {
    border-radius: var(--radius);
    border-color: var(--color-border) !important;
    font-size: 0.875rem;
}

.e-grid .e-headercell {
    font-size: 0.75rem !important;
    font-weight: 600 !important;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-text-secondary) !important;
    background-color: #f8fafc !important;
}

.e-grid .e-rowcell {
    font-size: 0.875rem;
    color: var(--color-text);
    padding: 10px 12px !important;
}

.e-grid .e-row:hover .e-rowcell {
    background-color: #f8fafc !important;
}

.e-grid .e-row.e-selectionbackground .e-rowcell {
    background-color: var(--color-primary-light) !important;
    color: var(--color-primary) !important;
}

/* ─── Blazor error boundary ──────────────────────────────────────────────── */
.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #991b1b;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
    border-radius: var(--radius);
    font-size: 0.875rem;
}

.blazor-error-boundary::after {
    content: "Ein unerwarteter Fehler ist aufgetreten."
}