:root {
    --color-text: #1a1a1a;
    --color-muted: #555;
    --color-bg: #ffffff;
    --color-surface: #f5f7fa;
    --color-border: #c5cdd8;
    /* Form control edges need 3:1 against the page (WCAG 1.4.11); --color-border is for cards and tables. */
    --color-input-border: #6b7785;
    --color-primary: #0a4f9b;
    --color-primary-contrast: #ffffff;
    --color-primary-hover: #073e7a;
    --color-error: #a40000;
    --color-success: #0d6832;
    --color-warning-bg: #fff4cc;
    --color-warning-border: #b78900;
    --focus-outline: 3px solid #ffbf47;
    --radius: 0.375rem;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    --space-1: 0.5rem;
    --space-2: 1rem;
    --space-3: 1.5rem;
    --space-4: 2rem;
}

* {
    box-sizing: border-box;
}

html {
    font-size: 100%;
}

body {
    margin: 0;
    color: var(--color-text);
    background: var(--color-bg);
    font-family: "Poppins", "Helvetica Neue", Helvetica, Arial, sans-serif;
    line-height: 1.6;
}

.container {
    max-width: 64rem;
    margin: 0 auto;
    padding: 0 var(--space-2);
}

.container-narrow {
    max-width: 40rem;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: var(--color-primary);
    color: var(--color-primary-contrast);
    padding: var(--space-1) var(--space-2);
    z-index: 1000;
    text-decoration: none;
}

.skip-link:focus {
    left: var(--space-1);
    top: var(--space-1);
    outline: var(--focus-outline);
}

#site-header {
    background: linear-gradient(135deg, #124D78 0%, #1B73B4 100%);
    color: #ffffff;
    padding: 1rem 0;
    margin-bottom: var(--space-3);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-2);
    min-height: 5rem;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: inherit;
    text-decoration: none;
}

.header-seal {
    width: 72px;
    height: 72px;
    flex-shrink: 0;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

.header-titles {
    display: flex;
    flex-direction: column;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.header-title-lg {
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.4;
}

.header-title-sm {
    font-size: 0.9rem;
    font-weight: 400;
    font-style: italic;
    opacity: 0.9;
}

.header-brand:focus-visible {
    outline: var(--focus-outline);
    outline-offset: 4px;
    border-radius: var(--radius);
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.25rem 1rem;
}

.site-nav a {
    color: #ffffff;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.35rem 0;
    border-bottom: 2px solid transparent;
}

.site-nav a:hover {
    border-bottom-color: rgba(255, 255, 255, 0.85);
}

/* The current page's link is already underlined, so focus needs the outline to be visible (WCAG 2.4.7). */
.site-nav a:focus-visible {
    outline: var(--focus-outline);
    outline-offset: 2px;
}

.site-nav a[aria-current="page"] {
    border-bottom-color: #ffffff;
    font-weight: 700;
}

.site-nav form {
    margin: 0;
}

.btn-nav {
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: var(--radius);
    padding: 0.35rem 0.75rem;
    font-size: 0.9rem;
    font-family: inherit;
    cursor: pointer;
    min-height: 36px;
}

.btn-nav:hover {
    background: rgba(255, 255, 255, 0.25);
}

main.container {
    padding-bottom: var(--space-4);
}

main:focus {
    outline: none;
}

h1 {
    font-size: 1.75rem;
    margin: 0 0 var(--space-2);
}

h2 {
    font-size: 1.25rem;
    margin: var(--space-3) 0 var(--space-2);
}

p.lede {
    color: var(--color-muted);
    margin-top: 0;
}

.card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: var(--space-3);
    margin-bottom: var(--space-3);
}

.card-title {
    margin: 0 0 var(--space-2);
    font-size: 1.1rem;
    font-weight: 600;
}

.field {
    margin-bottom: var(--space-2);
}

label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="datetime-local"],
textarea,
select {
    width: 100%;
    max-width: 100%;
    padding: 0.6rem 0.75rem;
    font-size: 1rem;
    font-family: inherit;
    color: var(--color-text);
    background: var(--color-bg);
    border: 1px solid var(--color-input-border);
    border-radius: var(--radius);
}

select {
    cursor: pointer;
    min-height: 2.75rem;
}

select:focus {
    outline: var(--focus-outline);
    outline-offset: 2px;
}

select.input-validation-error {
    border-color: var(--color-error);
    border-width: 2px;
}

input[readonly],
input:disabled,
select:disabled {
    background: var(--color-surface);
    color: var(--color-muted);
}

textarea {
    min-height: 6rem;
    resize: vertical;
}

input:focus,
textarea:focus,
button:focus,
a:focus {
    outline: var(--focus-outline);
    outline-offset: 2px;
}

input.input-validation-error,
textarea.input-validation-error {
    border-color: var(--color-error);
    border-width: 2px;
}

.field-error,
.danger {
    color: var(--color-error);
    font-size: 0.95rem;
}

.help {
    display: block;
    color: var(--color-muted);
    margin-top: 0.25rem;
    font-size: 0.875rem;
}

label .help {
    display: inline;
    margin-top: 0;
    margin-left: 0.25rem;
    font-weight: 400;
}

.validation-summary.validation-summary-errors {
    margin-bottom: var(--space-3);
    padding: var(--space-2);
    border: 1px solid var(--color-error);
    border-left-width: 4px;
    color: var(--color-error);
    background: #fff5f5;
    border-radius: var(--radius);
}

.validation-summary.validation-summary-valid {
    display: none;
}

.alert {
    padding: var(--space-2);
    border-radius: var(--radius);
    margin-bottom: var(--space-3);
    border: 1px solid var(--color-border);
    border-left-width: 4px;
}

.alert-success {
    background: #edf7f0;
    border-color: var(--color-success);
    color: var(--color-success);
}

.alert-warning {
    background: var(--color-warning-bg);
    border-color: var(--color-warning-border);
}

.alert-danger {
    background: #fff5f5;
    border-color: var(--color-error);
    color: var(--color-error);
}

.btn,
button[type="submit"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0.6rem 1.25rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    color: var(--color-primary-contrast);
    background: var(--color-primary);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius);
    cursor: pointer;
    text-decoration: none;
    line-height: 1.25;
}

.btn:hover,
button[type="submit"]:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
}

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

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

.btn-danger {
    color: var(--color-primary-contrast);
    background: var(--color-error);
    border-color: var(--color-error);
}

.btn-danger:hover {
    background: #850000;
    border-color: #850000;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1);
    margin-top: var(--space-2);
}

.filter-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: var(--space-2) 0 var(--space-3);
}

.filter-nav a {
    display: inline-block;
    padding: 0.4rem 0.85rem;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    text-decoration: none;
    color: var(--color-text);
    background: var(--color-bg);
    font-size: 0.9rem;
    font-weight: 500;
}

.filter-nav a:hover {
    background: var(--color-surface);
}

.filter-nav a[aria-current="page"] {
    background: var(--color-primary);
    color: var(--color-primary-contrast);
    border-color: var(--color-primary);
}

.data-table-wrap {
    overflow-x: auto;
    margin-top: var(--space-2);
}

table.data-table {
    border-collapse: collapse;
    width: 100%;
    font-size: 0.95rem;
}

table.data-table caption {
    text-align: left;
    font-weight: 600;
    margin-bottom: var(--space-1);
    color: var(--color-muted);
}

table.data-table th,
table.data-table td {
    border: 1px solid var(--color-border);
    padding: 0.65rem 0.75rem;
    text-align: left;
    vertical-align: top;
}

table.data-table th {
    background: var(--color-surface);
    font-weight: 600;
}

table.data-table tbody tr:nth-child(even) {
    background: #fafbfc;
}

table.data-table tbody tr:hover {
    background: #eef4fb;
}

table.data-table code {
    font-size: 0.85em;
    word-break: break-all;
}

.status-badge {
    display: inline-block;
    padding: 0.15rem 0.55rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.status-pending {
    background: #fff4cc;
    color: #7a5d00;
}

.status-approved {
    background: #d4edda;
    color: var(--color-success);
}

.status-rejected {
    background: #f8d7da;
    color: var(--color-error);
}

.status-revoked {
    background: #e2e3e5;
    color: #495057;
}

.detail-grid {
    display: grid;
    gap: var(--space-2);
}

.detail-grid dt {
    font-weight: 600;
    color: var(--color-muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin: 0;
}

.detail-grid dd {
    margin: 0 0 var(--space-1);
}

.form-grid {
    display: grid;
    gap: var(--space-2);
}

@media (min-width: 40rem) {
    .form-grid-2 {
        grid-template-columns: 1fr 1fr;
    }
}

.mono {
    font-family: ui-monospace, "Cascadia Code", "Segoe UI Mono", monospace;
}

.page-footer-links {
    margin-top: var(--space-4);
    padding-top: var(--space-2);
    border-top: 1px solid var(--color-border);
    color: var(--color-muted);
    font-size: 0.95rem;
}

.page-footer-links a {
    color: var(--color-primary);
}

.site-footer {
    border-top: 1px solid var(--color-border);
    padding: var(--space-3) 0;
    color: var(--color-muted);
    font-size: 0.9rem;
    margin-top: var(--space-4);
}

@media (max-width: 40rem) {
    .header-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .site-nav {
        width: 100%;
    }

    h1 {
        font-size: 1.5rem;
    }

    .btn,
    button[type="submit"] {
        width: 100%;
    }

    .actions .btn,
    .actions button[type="submit"] {
        width: auto;
        flex: 1 1 auto;
    }
}