h1:focus {
    outline: none;
}

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

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

.validation-message {
    color: #e50000;
}

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.darker-border-checkbox.form-check-input {
    border-color: #929292;
}

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

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

/* === Admin Visual Foundation (Phase 1) === */

:root {
    --admin-font-family: "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
    --admin-color-bg: #f8fafc;
    --admin-color-surface: #ffffff;
    --admin-color-surface-muted: #f8fafc;
    --admin-color-border: #e2e8f0;
    --admin-color-border-strong: #cbd5e1;
    --admin-color-text-primary: #0f172a;
    --admin-color-text-secondary: #475569;
    --admin-color-text-muted: #64748b;
    --admin-color-accent: #0f172a;
    --admin-color-accent-soft: #e2e8f0;
    --admin-color-danger-soft: #fef2f2;
    --admin-color-danger-border: #ef4444;
    --admin-color-danger-text: #991b1b;
    --admin-shadow-soft: 0 2px 12px rgba(15, 23, 42, 0.06);
}

/* === Admin Pages === */

.admin-page {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.5rem 1rem;
}

.admin-page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.admin-page-header-text {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.admin-page-header-text h1 {
    margin: 0;
}

.admin-breadcrumb {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #6b7280;
}

.admin-subtitle {
    margin: 0;
    color: #6b7280;
    font-size: 0.9375rem;
}

.admin-header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
    padding-top: 0.25rem;
}

.admin-content {
    margin-top: 1rem;
}

.admin-content .form-field {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    margin-bottom: 0.9rem;
}

.admin-content .form-field label {
    font-weight: 600;
    color: #374151;
}

.admin-content .form-field input:not([type="checkbox"]),
.admin-content .form-field select,
.admin-content .form-field textarea {
    width: 100%;
    max-width: 32rem;
    padding: 0.45rem 0.6rem;
    border: 1px solid #d1d5db;
    border-radius: 0.375rem;
    background-color: #ffffff;
    color: #111827;
}

.admin-content .form-field input[type="checkbox"] {
    margin-right: 0.4rem;
}

.admin-content .form-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.admin-list-actions {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9375rem;
}

.admin-table th,
.admin-table td {
    text-align: left;
    padding: 0.6rem 0.75rem;
    border-bottom: 1px solid #e5e7eb;
}

.admin-table thead th {
    background-color: #f9fafb;
    font-weight: 600;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #374151;
}

.admin-table tbody tr:hover {
    background-color: #f9fafb;
}

.admin-table td:last-child {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
    align-items: center;
}

.feedback-success {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    background-color: #f0fdf4;
    border-left: 4px solid #16a34a;
    border-radius: 0.25rem;
    color: #166534;
}

.feedback-success p {
    margin: 0;
}

.feedback-error {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    background-color: #fef2f2;
    border-left: 4px solid #dc2626;
    border-radius: 0.25rem;
    color: #991b1b;
}

.feedback-error p {
    margin: 0;
}

.operations-summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.operations-summary-card {
    border: 1px solid #e5e7eb;
    border-radius: 0.5rem;
    padding: 0.75rem;
    background-color: #f9fafb;
}

.operations-summary-card h2 {
    margin: 0;
    font-size: 0.9rem;
    color: #374151;
}

.operations-summary-value {
    margin: 0.5rem 0 0;
    font-size: 1.4rem;
    font-weight: 700;
    color: #111827;
}

.operations-alert-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.15rem 0.45rem;
    border-radius: 999px;
    border: 1px solid #fca5a5;
    background-color: #fef2f2;
    color: #991b1b;
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1.2;
}

/* === Buttons === */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    border: 1px solid transparent;
    font-size: 0.9375rem;
    font-weight: 500;
    line-height: 1.25;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background-color: #1f2937;
    color: #ffffff;
    border-color: #1f2937;
}

.btn-primary:hover:not(:disabled) {
    background-color: #111827;
    border-color: #111827;
}

.btn-secondary {
    background-color: #f3f4f6;
    color: #374151;
    border-color: #d1d5db;
}

.btn-secondary:hover:not(:disabled) {
    background-color: #e5e7eb;
}

.btn-danger {
    background-color: #dc2626;
    color: #ffffff;
    border-color: #dc2626;
}

.btn-danger:hover:not(:disabled) {
    background-color: #b91c1c;
    border-color: #b91c1c;
}

.btn-outline {
    background-color: transparent;
    color: #374151;
    border-color: #d1d5db;
}

.btn-outline:hover:not(:disabled) {
    background-color: #f3f4f6;
}

.btn-sm {
    padding: 0.3rem 0.625rem;
    font-size: 0.8125rem;
}

/* === Admin Navigation (Phase 1) === */

.admin-nav {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0.75rem 1rem 0;
    font-family: var(--admin-font-family);
}

.admin-nav-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.admin-nav-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.25rem;
    padding: 0.45rem 0.8rem;
    border-radius: 0.5rem;
    border: 1px solid var(--admin-color-border);
    background-color: var(--admin-color-surface);
    color: var(--admin-color-text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.2;
    transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.admin-nav-link:hover {
    background-color: var(--admin-color-surface-muted);
    border-color: var(--admin-color-border-strong);
    color: var(--admin-color-text-primary);
}

.admin-nav-link:focus-visible {
    outline: 2px solid var(--admin-color-text-primary);
    outline-offset: 2px;
}

.admin-nav-link.active,
.admin-nav-link[aria-current="page"] {
    border-color: var(--admin-color-text-primary);
    background-color: var(--admin-color-accent-soft);
    color: var(--admin-color-accent);
}

/* === Admin Dashboards (Phase 1) === */

.admin-dashboard-page {
    font-family: var(--admin-font-family);
    color: var(--admin-color-text-primary);
    background: linear-gradient(180deg, var(--admin-color-bg) 0%, var(--admin-color-surface) 260px);
}

.admin-dashboard-page .admin-page-header {
    margin-bottom: 1.25rem;
}

.admin-dashboard-page .admin-page-header-text h1 {
    font-size: clamp(1.45rem, 1.1rem + 1.1vw, 1.9rem);
    line-height: 1.15;
    letter-spacing: -0.01em;
    color: var(--admin-color-text-primary);
}

.admin-dashboard-page .admin-breadcrumb {
    color: var(--admin-color-text-muted);
}

.admin-dashboard-page .admin-subtitle {
    max-width: 64ch;
    color: var(--admin-color-text-secondary);
}

.admin-dashboard-page .admin-content {
    display: grid;
    gap: 1rem;
    margin-top: 0;
}

.admin-dashboard-page .admin-metrics-section {
    padding: 1rem;
    border: 1px solid var(--admin-color-border);
    border-radius: 0.75rem;
    background-color: var(--admin-color-surface);
    box-shadow: var(--admin-shadow-soft);
}

.admin-dashboard-page .admin-metrics-section h2 {
    margin: 0 0 0.85rem;
    color: var(--admin-color-text-primary);
    font-size: 1rem;
    line-height: 1.3;
}

.admin-dashboard-page .admin-metrics-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.65rem;
    margin: 0;
}

.admin-dashboard-page .admin-metric-item {
    padding: 0.7rem;
    border: 1px solid var(--admin-color-border);
    border-radius: 0.6rem;
    background-color: var(--admin-color-surface-muted);
}

.admin-dashboard-page .admin-metric-item dt {
    margin: 0;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    color: var(--admin-color-text-secondary);
}

.admin-dashboard-page .admin-metric-item dd {
    margin: 0.32rem 0 0;
    color: var(--admin-color-text-primary);
    font-size: 1.2rem;
    font-weight: 700;
    line-height: 1.2;
}

.admin-dashboard-page .admin-state-panel {
    padding: 1rem;
    border: 1px solid var(--admin-color-border);
    border-radius: 0.75rem;
    background-color: var(--admin-color-surface);
}

.admin-dashboard-page .admin-state-panel h2 {
    margin: 0;
    font-size: 1rem;
    color: var(--admin-color-text-primary);
}

.admin-dashboard-page .admin-state-panel p {
    margin: 0.35rem 0 0;
    color: var(--admin-color-text-secondary);
}

.admin-dashboard-page .admin-state-panel-loading {
    border-style: dashed;
}

.admin-dashboard-page .admin-state-panel-empty {
    background-color: var(--admin-color-surface-muted);
}

.admin-dashboard-page .feedback-error.admin-state-panel {
    margin-bottom: 0;
    border-left-color: var(--admin-color-danger-border);
    border-color: var(--admin-color-danger-border);
    background-color: var(--admin-color-danger-soft);
    color: var(--admin-color-danger-text);
}

.admin-dashboard-page .feedback-error.admin-state-panel p,
.admin-dashboard-page .feedback-error.admin-state-panel strong {
    color: var(--admin-color-danger-text);
}

.admin-dashboard-page .admin-table-shell {
    overflow-x: auto;
    border: 1px solid var(--admin-color-border);
    border-radius: 0.75rem;
    background-color: var(--admin-color-surface);
    box-shadow: var(--admin-shadow-soft);
}

.admin-dashboard-page .admin-dashboard-table {
    margin: 0;
    min-width: 620px;
}

.admin-dashboard-page .admin-dashboard-table th,
.admin-dashboard-page .admin-dashboard-table td {
    padding: 0.72rem 0.75rem;
}

.admin-dashboard-page .admin-dashboard-table thead th {
    background-color: #f1f5f9;
    border-bottom: 1px solid var(--admin-color-border-strong);
    color: var(--admin-color-text-secondary);
}

.admin-dashboard-page .admin-dashboard-table tbody tr:hover {
    background-color: #f8fafc;
}

.admin-dashboard-page .operations-summary-grid {
    margin-bottom: 0;
    gap: 0.85rem;
}

.admin-dashboard-page .operations-summary-card {
    border: 1px solid var(--admin-color-border);
    border-radius: 0.75rem;
    padding: 0.9rem;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    box-shadow: var(--admin-shadow-soft);
}

.admin-dashboard-page .operations-summary-card h2 {
    margin: 0;
    font-size: 0.82rem;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--admin-color-text-secondary);
}

.admin-dashboard-page .operations-summary-value {
    margin: 0.42rem 0 0;
    font-size: clamp(1.4rem, 1.15rem + 0.9vw, 1.8rem);
    line-height: 1.1;
}

.admin-dashboard-page .operations-alert-badge {
    border-color: #fecaca;
}

@media (max-width: 900px) {
    .admin-dashboard-page .admin-page-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .admin-dashboard-page .admin-header-actions {
        padding-top: 0;
    }
}

@media (max-width: 640px) {
    .admin-nav {
        padding-top: 0.6rem;
    }

    .admin-nav-list {
        gap: 0.4rem;
    }

    .admin-nav-link {
        min-height: 2.1rem;
        padding: 0.38rem 0.65rem;
        font-size: 0.8125rem;
    }

    .admin-dashboard-page {
        padding-top: 1rem;
    }

    .admin-dashboard-page .admin-page {
        padding: 1rem 0.75rem;
    }

    .admin-dashboard-page .admin-metrics-section,
    .admin-dashboard-page .admin-state-panel {
        padding: 0.85rem;
    }
}