:root {
    --itc-navy: #0b3a4d;
    --itc-teal: #0d5c63;
    --itc-teal-light: #14919b;
    --itc-surface: #ffffff;
    --itc-muted: #5a6f7a;
    --itc-border: #c5d5dc;
    --itc-success: #1b7f5a;
    --itc-danger: #b42318;
    --itc-warning: #b54708;
}

html, body {
    font-family: "Segoe UI", "Tahoma", "Arial", sans-serif;
    color: #123;
    background: #f0f7f8;
}

a, .btn-link {
    color: var(--itc-teal);
}

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

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

.btn-outline-primary {
    color: var(--itc-teal);
    border-color: var(--itc-teal);
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem rgba(13, 92, 99, 0.35);
}

.content {
    padding-top: 1.1rem;
    padding-bottom: 2rem;
}

h1, h2, h3 {
    color: var(--itc-navy);
}

.page-title {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--itc-surface);
    border: 1px solid var(--itc-border);
    border-radius: 10px;
    padding: 1rem 1.1rem;
    box-shadow: 0 1px 2px rgba(11, 58, 77, 0.06);
}

.stat-card .label {
    color: var(--itc-muted);
    font-size: 0.9rem;
    margin-bottom: 0.35rem;
}

.stat-card .value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--itc-navy);
}

.admin-table {
    width: 100%;
    background: var(--itc-surface);
    border: 1px solid var(--itc-border);
    border-radius: 10px;
    overflow: hidden;
}

.admin-table table {
    margin-bottom: 0;
}

.admin-table th {
    background: #e8f2f4;
    color: var(--itc-navy);
    white-space: nowrap;
}

.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: end;
    margin-bottom: 1rem;
    background: var(--itc-surface);
    border: 1px solid var(--itc-border);
    border-radius: 10px;
    padding: 0.9rem 1rem;
}

.alert-once {
    background: #fff8e6;
    border: 1px solid #f0c36d;
    color: #7a4b00;
    border-radius: 10px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.form-panel {
    background: var(--itc-surface);
    border: 1px solid var(--itc-border);
    border-radius: 10px;
    padding: 1.25rem;
    max-width: 720px;
}

.muted {
    color: var(--itc-muted);
}

.badge-status {
    display: inline-block;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-available { background: #e8f5ef; color: var(--itc-success); }
.badge-active { background: #e6f4f5; color: var(--itc-teal); }
.badge-expired { background: #f2f2f2; color: #555; }
.badge-suspended { background: #fff4e5; color: var(--itc-warning); }
.badge-blocked, .badge-revoked { background: #fdecea; color: var(--itc-danger); }

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid #e50000;
}

.validation-message {
    color: #e50000;
}

.blazor-error-boundary {
    background: #b32121;
    padding: 1rem 1rem 1rem 1rem;
    color: white;
}