:root {
    color-scheme: light dark;
    --bg: #0f1115;
    --surface: #1a1d24;
    --surface-alt: #242832;
    --border: #2d313c;
    --text: #e6e8ee;
    --muted: #9aa0ad;
    --accent: #4f8cff;
    --accent-hover: #6aa1ff;
    --danger: #f05252;
}

@media (prefers-color-scheme: light) {
    :root {
        --bg: #f5f6fa;
        --surface: #ffffff;
        --surface-alt: #f0f2f7;
        --border: #dfe3ea;
        --text: #141824;
        --muted: #5b6272;
    }
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}

.app-header {
    padding: 32px 24px 16px;
    max-width: 1400px;
    margin: 0 auto;
}

.app-header h1 {
    margin: 0 0 8px;
    font-size: 28px;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.app-header p {
    margin: 0;
    color: var(--muted);
}

.auth-login-form {
    display: grid;
    gap: 10px;
}

.login-main {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.login-card {
    width: min(920px, 100%);
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 0;
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    background: var(--surface);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

.login-brand {
    padding: 40px 36px;
    background: linear-gradient(140deg, color-mix(in srgb, var(--accent) 36%, var(--surface)) 0%, var(--surface-alt) 100%);
}

.login-brand h1 {
    margin: 0 0 12px;
    font-size: 38px;
    letter-spacing: -0.02em;
}

.login-brand p {
    margin: 0;
    color: var(--muted);
    font-size: 15px;
    line-height: 1.6;
}

.login-shell {
    padding: 34px 30px;
    display: grid;
    align-content: center;
    gap: 10px;
}

.login-shell h2 {
    margin: 0;
}

.login-shell .auth-login-form {
    margin-top: 6px;
}

.login-shell .demo-session__meta {
    width: 100%;
    align-items: flex-start;
}

.login-shell .demo-session__meta button {
    width: 100%;
}

.demo-session__field {
    display: grid;
    gap: 6px;
    font-size: 12px;
    color: var(--muted);
    min-width: min(320px, 100%);
}

.demo-session__field input,
.demo-session__field select {
    min-height: 40px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--surface-alt);
    color: var(--text);
    padding: 0 12px;
    font-size: 14px;
}

.demo-session__meta {
    display: flex;
    flex-direction: column;
    gap: 2px;
    font-size: 13px;
    color: var(--muted);
}

.header-session {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 230px;
    justify-content: flex-end;
}

.header-session__meta {
    display: flex;
    flex-direction: column;
    gap: 2px;
    font-size: 12px;
    color: var(--muted);
}

.header-session__meta strong {
    color: var(--text);
}

.header-session .secondary {
    min-width: 88px;
}

main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 16px 24px 48px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.upload-card,
.diff-card,
.lt-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
}

.drop-zone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 32px;
    border: 2px dashed var(--border);
    border-radius: 10px;
    cursor: pointer;
    text-align: center;
    background: var(--surface-alt);
    transition: border-color 0.15s, background 0.15s;
}

.drop-zone:hover,
.drop-zone.drag-over {
    border-color: var(--accent);
    background: color-mix(in srgb, var(--accent) 8%, var(--surface-alt));
}

.drop-zone input[type="file"] {
    display: none;
}

.drop-zone__label {
    font-size: 14px;
    color: var(--muted);
}

.drop-zone__filename {
    font-size: 14px;
    color: var(--text);
    font-weight: 500;
}

.controls {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.profile-row {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 16px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.profile-field {
    display: grid;
    gap: 8px;
    min-width: min(320px, 100%);
    font-size: 13px;
    color: var(--muted);
}

.profile-field span {
    color: var(--muted);
}

.profile-field select {
    min-height: 42px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--surface-alt);
    color: var(--text);
    padding: 0 12px;
    font-size: 14px;
}

.profile-hint {
    margin: 0;
    max-width: 540px;
    color: var(--muted);
    font-size: 13px;
}

.toggle-field {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text);
    min-height: 42px;
}

.toggle-field input[type="checkbox"] {
    width: 16px;
    height: 16px;
    margin: 0;
}

button {
    appearance: none;
    border: 0;
    background: var(--accent);
    color: white;
    padding: 10px 18px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s;
}

button:hover {
    background: var(--accent-hover);
}

button:disabled {
    background: var(--muted);
    cursor: not-allowed;
}

a#download-link {
    color: var(--accent);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
}

a#download-link:hover {
    text-decoration: underline;
}

.status {
    margin: 12px 0 0;
    font-size: 13px;
    color: var(--muted);
    min-height: 1em;
}

.status.error {
    color: var(--danger);
}

.diff-meta {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.diff-meta h2 {
    margin: 0 0 6px;
    font-size: 18px;
}

.rules-summary {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
}

.file-chip {
    min-width: 220px;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface-alt);
}

.file-chip span {
    display: block;
    margin-bottom: 4px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
}

.file-chip strong {
    display: block;
    font-size: 14px;
}

.example-label {
    display: block;
    margin-bottom: 6px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
}

.empty-state {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
}

.diff-toolbar {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
    font-size: 13px;
    color: var(--muted);
}

.diff-toolbar label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.hidden {
    display: none !important;
}

#diff-container {
    overflow-x: auto;
}

#diff-container .d2h-wrapper {
    font-size: 13px;
    min-width: 1200px;
}

#diff-container .d2h-code-line,
#diff-container .d2h-code-side-line {
    white-space: pre-wrap;
    word-break: normal;
    overflow-wrap: break-word;
}

#diff-container .d2h-code-line-ctn {
    display: inline;
    width: auto;
    white-space: pre-wrap;
    word-break: normal;
    overflow-wrap: break-word;
}

#diff-container .d2h-code-line-prefix {
    font-weight: bold;
}

#diff-container td.d2h-code-linenumber,
#diff-container td.d2h-code-side-linenumber {
    vertical-align: top;
}

#diff-container tr {
    vertical-align: top;
}

.diff-annotation-cell {
    width: 340px;
    min-width: 340px;
    padding: 8px 10px;
    vertical-align: top;
    background: color-mix(in srgb, var(--surface-alt) 60%, transparent);
    border-left: 1px solid var(--border);
}

.diff-annotation {
    display: grid;
    gap: 10px;
    padding: 12px;
    border-radius: 8px;
    background: var(--surface);
    border: 1px solid color-mix(in srgb, var(--border) 80%, transparent);
}

.diff-annotation__rule {
    display: grid;
    gap: 4px;
}

.diff-annotation__rule strong {
    font-size: 14px;
}

.diff-annotation__rule span {
    color: var(--text);
    font-size: 13px;
}

.diff-annotation__pair {
    display: grid;
    gap: 10px;
}

.diff-annotation__pair code {
    display: block;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    padding: 10px;
    border-radius: 6px;
    background: var(--surface-alt);
    color: var(--text);
}

.lt-card h2 {
    margin: 0 0 8px;
    font-size: 18px;
}

.lt-card h3 {
    margin: 8px 0;
    font-size: 14px;
    color: var(--muted);
}

.lt-summary {
    margin: 0 0 12px;
    color: var(--muted);
    font-size: 13px;
}

.lt-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: 1fr 1fr;
}

.lt-list {
    margin: 0;
    padding: 0 0 0 18px;
    max-height: 360px;
    overflow: auto;
    font-size: 13px;
}

.lt-list li {
    margin: 0 0 8px;
}

.lt-list .rule {
    color: var(--muted);
    font-size: 12px;
}

.lt-list .snippet {
    color: var(--muted);
}

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

.app-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.app-nav nav {
    display: flex;
    gap: 4px;
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 4px;
    border-radius: 10px;
}

.nav-link {
    padding: 6px 12px;
    font-size: 13px;
    color: var(--muted);
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
}

.nav-link:hover {
    color: var(--text);
}

.nav-link.active {
    background: var(--accent);
    color: white;
}

.rules-main {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 16px 24px 48px;
}

.rules-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 16px;
    flex-wrap: wrap;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
}

.rules-toolbar__filters {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.rules-toolbar__filters label {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 12px;
    color: var(--muted);
}

.rules-toolbar__filters input,
.rules-toolbar__filters select {
    background: var(--surface-alt);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 13px;
    min-width: 160px;
}

.rules-toolbar__actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

.documents-toolbar {
    margin-bottom: 12px;
}

#documents-count {
    font-size: 12px;
    white-space: nowrap;
}

button.secondary {
    background: var(--surface-alt);
    color: var(--text);
    border: 1px solid var(--border);
}

button.secondary:hover {
    background: var(--border);
}

.rules-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 20px;
}

.rules-list-card,
.rules-detail-card,
.effective-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
}

.rules-list-header,
.effective-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    gap: 12px;
    flex-wrap: wrap;
}

.rules-list-hint {
    font-size: 12px;
    color: var(--muted);
}

.rules-table-wrap,
.versions-table-wrap,
.effective-table-wrap {
    overflow: auto;
    max-height: 520px;
    border-radius: 8px;
}

.rules-table,
.versions-table,
.effective-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.rules-table thead th,
.versions-table thead th,
.effective-table thead th {
    position: sticky;
    top: 0;
    background: var(--surface-alt);
    text-align: left;
    font-weight: 500;
    color: var(--muted);
    padding: 8px 10px;
    border-bottom: 1px solid var(--border);
    font-size: 12px;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.rules-table tbody td,
.versions-table tbody td,
.effective-table tbody td {
    padding: 8px 10px;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

.rules-table tbody tr {
    cursor: pointer;
    transition: background 0.1s;
}

.rules-table tbody tr:hover {
    background: var(--surface-alt);
}

.rules-table tbody tr.is-selected {
    background: color-mix(in srgb, var(--accent) 14%, var(--surface));
}

.tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.02em;
    background: var(--surface-alt);
    color: var(--muted);
    border: 1px solid var(--border);
}

.tag--ok {
    background: color-mix(in srgb, #2ecc71 22%, var(--surface-alt));
    color: #1f8a4f;
    border-color: color-mix(in srgb, #2ecc71 40%, transparent);
}

.tag--warn {
    background: color-mix(in srgb, #f5a524 22%, var(--surface-alt));
    color: #b8751c;
    border-color: color-mix(in srgb, #f5a524 40%, transparent);
}

.tag--danger {
    background: color-mix(in srgb, var(--danger) 22%, var(--surface-alt));
    color: var(--danger);
    border-color: color-mix(in srgb, var(--danger) 40%, transparent);
}

.tag--muted {
    background: var(--surface-alt);
    color: var(--muted);
}

.detail-empty {
    padding: 48px 16px;
    text-align: center;
    color: var(--muted);
    font-size: 13px;
}

.detail-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
}

.detail-header h2 {
    margin: 0;
    font-size: 18px;
}

.detail-sub {
    margin: 4px 0 0;
    font-size: 12px;
    color: var(--muted);
    font-family: ui-monospace, monospace;
}

.detail-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
    margin: 0 0 20px;
}

.detail-meta div {
    display: flex;
    flex-direction: column;
    gap: 2px;
    background: var(--surface-alt);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 10px;
}

.detail-meta dt {
    font-size: 11px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.detail-meta dd {
    margin: 0;
    font-size: 13px;
}

.detail-meta-wide {
    grid-column: 1 / -1;
}

.versions-section {
    border-top: 1px solid var(--border);
    padding-top: 16px;
}

.versions-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.versions-header h3 {
    margin: 0;
    font-size: 14px;
}

.versions-table td.actions {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.versions-table tr.is-applied {
    background: color-mix(in srgb, #2ecc71 12%, var(--surface));
}

.applied-hint {
    font-size: 11px;
    color: var(--muted);
    margin-top: 4px;
}

.versions-table td code,
.rules-table td code,
.effective-table td code {
    background: var(--surface-alt);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 12px;
    word-break: break-all;
}

.versions-table td code.ws-aware {
    white-space: pre-wrap;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

.ws-mark {
    display: inline-block;
    padding: 0 2px;
    border-radius: 3px;
    background: #d9f7be;
    color: #1f6f3d;
    border: 1px solid #a7e3a1;
    line-height: 1.2;
}

.effective-controls {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.effective-controls input,
.effective-controls select {
    background: var(--surface-alt);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 13px;
    min-width: 220px;
}

.ruleset-compose {
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px;
    margin-bottom: 16px;
    background: var(--surface-alt);
}

.ruleset-compose__header h3 {
    margin: 0 0 4px;
    font-size: 14px;
}

.ruleset-compose__header p {
    margin: 0;
    font-size: 12px;
}

.ruleset-compose__form {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(140px, 180px) minmax(160px, 220px) auto;
    gap: 12px;
    align-items: end;
}

.ruleset-compose__summary {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.ruleset-compose__summary div {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 10px;
}

.ruleset-compose__summary dt {
    font-size: 11px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 2px;
}

.ruleset-compose__summary dd {
    margin: 0;
    font-size: 13px;
}

.ruleset-compose__form label {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 12px;
    color: var(--muted);
}

.ruleset-compose__form input,
.ruleset-compose__form select {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 13px;
}

.ruleset-compose__actions {
    display: flex;
    align-items: end;
}

.modal-root {
    position: fixed;
    inset: 0;
    background: color-mix(in srgb, black 55%, transparent);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 20;
    padding: 24px;
}

.modal {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    max-width: 520px;
    width: 100%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 16px 8px;
}

.modal-header h3 {
    margin: 0;
    font-size: 16px;
}

.icon-btn {
    background: transparent;
    color: var(--muted);
    font-size: 18px;
    padding: 4px 10px;
    border-radius: 6px;
}

.icon-btn:hover {
    background: var(--surface-alt);
    color: var(--text);
}

.modal-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    padding: 8px 16px 16px;
    overflow: auto;
}

.modal-form label {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 12px;
    color: var(--muted);
}

.modal-form input,
.modal-form select,
.modal-form textarea {
    background: var(--surface-alt);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 13px;
    font-family: inherit;
}

.modal-form textarea {
    min-height: 80px;
    resize: vertical;
}

.modal-form .field-wide {
    grid-column: 1 / -1;
}

.option-flags {
    grid-column: 1 / -1;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 12px;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 8px 12px;
}

.option-flags legend {
    padding: 0 6px;
    color: var(--muted);
    font-size: 12px;
}

.check-row {
    flex-direction: row !important;
    align-items: center;
    gap: 8px !important;
    color: var(--text) !important;
}

.check-row input[type="checkbox"] {
    width: 16px;
    height: 16px;
    margin: 0;
}

.regex-explainer {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: color-mix(in srgb, var(--surface) 92%, var(--accent) 8%);
}

.regex-explainer__header h4 {
    margin: 0 0 4px;
    font-size: 14px;
}

.regex-explainer__header p {
    margin: 0;
    font-size: 12px;
}

.regex-explainer__sample-field textarea {
    font-family: var(--mono, ui-monospace, monospace);
    font-size: 13px;
    line-height: 1.45;
}

.regex-explainer__panel {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.regex-explainer__status {
    margin: 0;
    font-size: 13px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

.regex-explainer__status--error {
    color: var(--danger, #b42318);
}

.regex-explainer__note {
    margin: 0;
    font-size: 12px;
}

.regex-hints {
    margin: 0;
    padding-left: 18px;
    font-size: 12px;
    color: var(--muted);
}

.regex-explainer__sample-text {
    margin: 4px 0 0;
    padding: 10px 12px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--surface);
    white-space: pre-wrap;
    word-break: break-word;
    font-family: var(--mono, ui-monospace, monospace);
    font-size: 13px;
    line-height: 1.5;
}

.regex-hit {
    background: color-mix(in srgb, var(--accent) 28%, transparent);
    border-radius: 2px;
    padding: 0 1px;
}

.regex-examples {
    list-style: none;
    margin: 4px 0 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.regex-examples li {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 6px;
    font-size: 13px;
}

.regex-examples__arrow {
    color: var(--muted);
}

.regex-examples code {
    font-family: var(--mono, ui-monospace, monospace);
    font-size: 12px;
}

.regex-explainer__sample-label {
    font-size: 12px;
    color: var(--muted);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 12px 16px 16px;
    border-top: 1px solid var(--border);
}

.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 13px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
    z-index: 30;
    max-width: 360px;
}

.toast--error {
    border-color: var(--danger);
    color: var(--danger);
}

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

.documents-layout {
    display: grid;
    grid-template-columns: minmax(240px, 320px) minmax(0, 1fr);
    gap: 16px;
}

.documents-list {
    border: 1px solid var(--border);
    border-radius: 10px;
    max-height: 520px;
    overflow: auto;
    background: var(--surface-alt);
}

.documents-list ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.documents-list button {
    width: 100%;
    text-align: left;
    background: transparent;
    color: var(--text);
    border: 0;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
    padding: 10px 12px;
}

.documents-list button:hover,
.documents-list button.active {
    background: color-mix(in srgb, var(--accent) 12%, var(--surface-alt));
}

.documents-list button small {
    display: block;
    color: var(--muted);
    margin-top: 3px;
}

.documents-detail {
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px;
}

.document-rules {
    display: grid;
    gap: 10px;
    margin-top: 12px;
}

.document-rule-item {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px;
    background: var(--surface-alt);
}

.document-rule-meta {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    font-size: 12px;
    margin-bottom: 8px;
}

.document-rule-item textarea {
    width: 100%;
    min-height: 64px;
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px;
    resize: vertical;
}

.document-rule-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
    font-size: 12px;
    color: var(--muted);
}

@media (max-width: 1100px) {
    .rules-layout {
        grid-template-columns: 1fr;
    }

    .ruleset-compose__form {
        grid-template-columns: 1fr 180px 220px;
    }

    .ruleset-compose__actions {
        grid-column: 1 / -1;
    }
}

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

    .login-brand {
        padding: 28px 22px;
    }

    .login-shell {
        padding: 22px;
    }

    .modal-form {
        grid-template-columns: 1fr;
    }

    .ruleset-compose__form,
    .ruleset-compose__summary {
        grid-template-columns: 1fr;
    }

    .documents-layout {
        grid-template-columns: 1fr;
    }
}