/* ============================================================
   tools. — shared catalog and workbench UI layer
   Loaded statically after the base component styles.
   ============================================================ */

:root {
    --font-sans: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: var(--font-sans);
    --font-display: 'Archivo', var(--font-sans);

    --bg: #f7f7f3;
    --bg-secondary: #efefe9;
    --bg-tertiary: #e5e6df;
    --surface-1: #ffffff;
    --surface-2: #f2f2ed;
    --surface-3: #e9eae4;
    --text: #1c211f;
    --text-secondary: #5f6762;
    --text-muted: #68706b;
    --border: #daddd7;
    --border-strong: #c7cbc4;
    --accent: #2257d8;
    --accent-hover: #1945b1;
    --accent-soft: rgba(34, 87, 216, 0.10);
    --marker: #f2c94c;
    --accent-ok: #198754;
    --accent-danger: #c2413c;
    --input-bg: #ffffff;
    --input-border: #c7ced2;
    --input-border-hover: #9aa6ac;
    --button-bg: #181a1b;
    --button-text: #ffffff;
    --button-hover: #303436;
    --code-bg: #f0f2f2;
    --code-text: #171a1b;
    --focus-ring: rgba(34, 87, 216, 0.25);
    --shadow-sm: 0 1px 2px rgba(24, 26, 27, 0.05);
    --shadow-md: 0 8px 24px rgba(24, 26, 27, 0.08);
    --page-max: 1120px;
    --tool-max: 1040px;
    --panel-radius: 8px;
}

[data-theme="dark"] {
    color-scheme: dark;
    --bg: #111513;
    --bg-secondary: #181d1a;
    --bg-tertiary: #202622;
    --surface-1: #181d1a;
    --surface-2: #202622;
    --surface-3: #262d29;
    --text: #f1f3ef;
    --text-secondary: #aeb6b0;
    --text-muted: #9aa39d;
    --border: #2a312d;
    --border-strong: #39413c;
    --accent: #7da2ff;
    --accent-hover: #a9c0ff;
    --accent-soft: rgba(125, 162, 255, 0.12);
    --marker: #f2c94c;
    --accent-ok: #6bd284;
    --accent-danger: #ff7474;
    --input-bg: #0b0f12;
    --input-border: #2e3d44;
    --input-border-hover: #51656e;
    --button-bg: #edf2f4;
    --button-text: #0b0f12;
    --button-hover: #cdd8dc;
    --code-bg: #0a0e11;
    --code-text: #e4f4f1;
    --focus-ring: rgba(125, 162, 255, 0.3);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.28);
    --shadow-md: 0 10px 28px rgba(0, 0, 0, 0.30);
}

html {
    background: var(--bg);
}

body {
    background: var(--bg);
    color: var(--text);
}

body.tool-page-shell,
body[data-workbench="tool"] {
    max-width: none !important;
    margin: 0 !important;
    padding: 0 !important;
}

a {
    color: var(--accent);
}

a:hover {
    color: var(--accent-hover);
}

h1,
h2,
h3,
h4 {
    letter-spacing: 0;
}

.top-bar,
.page,
.app-footer,
footer {
    max-width: var(--page-max);
}

.top-bar {
    padding-top: var(--space-5);
}

body.tool-page-shell .top-bar,
body[data-workbench="tool"] .top-bar {
    max-width: var(--tool-max);
}

.top-bar__brand,
.icon-btn,
.theme-toggle-btn,
.back-link {
    border: 1px solid var(--border);
    border-radius: var(--panel-radius);
    background: var(--surface-1);
    box-shadow: var(--shadow-sm);
}

.top-bar__brand {
    min-height: 38px;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0 var(--space-3);
    color: var(--text);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: lowercase;
    letter-spacing: 0;
}

.top-bar__brand::before { content: none; }

.icon-btn,
.theme-toggle-btn {
    width: 38px;
    height: 38px;
    color: var(--text-secondary);
}

.icon-btn:hover,
.theme-toggle-btn:hover,
.back-link:hover {
    border-color: var(--border-strong);
    background: var(--surface-2);
    color: var(--text);
    text-decoration: none;
}

.icon-btn:focus-visible,
.theme-toggle-btn:focus-visible,
.tool__link:focus-visible,
.btn:focus-visible,
button.primary:focus-visible,
button.secondary:focus-visible,
input:focus,
textarea:focus,
select:focus {
    outline: 3px solid var(--focus-ring) !important;
    outline-offset: 2px !important;
    border-color: var(--accent) !important;
}

.page {
    padding-top: var(--space-7);
}

.intro {
    margin-bottom: var(--space-7);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--border);
}

.intro h1 {
    max-width: none;
    margin-bottom: var(--space-3);
    font-size: clamp(2rem, 5vw, 4rem);
    line-height: 1;
    letter-spacing: -0.03em;
}

.intro p {
    max-width: 76ch;
    color: var(--text-secondary);
    font-size: 1rem;
}

.intro code {
    border: 1px solid var(--border);
    background: var(--code-bg);
}

.search {
    margin-bottom: var(--space-7);
}

.search input {
    height: 48px;
    padding-right: 3rem;
    padding-left: 2.8rem;
    border-radius: var(--panel-radius);
    border-color: var(--border);
    background: var(--surface-1);
    box-shadow: var(--shadow-sm);
    font-size: var(--text-base);
}

.search__icon {
    left: var(--space-4);
    color: var(--accent);
}

.search__clear {
    right: var(--space-2);
    width: 32px;
    height: 32px;
    border-radius: var(--panel-radius);
    color: var(--text-muted);
}

.section {
    margin-bottom: var(--space-7);
}

.section__title {
    margin-bottom: var(--space-3);
    padding-bottom: var(--space-2);
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: var(--text-xs);
    letter-spacing: 0.12em;
}

.tool-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-3);
}

.tool__link {
    min-height: 104px;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    justify-content: space-between;
    margin: 0;
    padding: var(--space-4);
    border: 1px solid var(--border);
    border-radius: var(--panel-radius);
    background: var(--surface-1);
    color: var(--text);
    box-shadow: var(--shadow-sm);
}

.tool__link:hover {
    border-color: var(--border-strong);
    background: var(--surface-2);
    text-decoration: none;
}

.tool__name {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-3);
    font-size: var(--text-sm);
    line-height: var(--leading-tight);
}

.tool__link::after {
    content: '↗';
    color: var(--text-muted);
    font-family: var(--font-mono);
    transition: color var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out);
}

.tool__link:hover::after,
.tool__link.is-active::after {
    color: var(--accent);
    transform: translate(2px, -2px);
}

.tool__desc {
    max-width: 34ch;
    color: var(--text-secondary);
    font-size: var(--text-sm);
}

.no-results-message {
    padding: var(--space-6);
    border: 1px dashed var(--border-strong);
    border-radius: var(--panel-radius);
    background: var(--surface-1);
}

.tool-container {
    max-width: var(--tool-max);
    padding-top: var(--space-7);
}

.tool-container .container {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-5);
    min-width: 0;
}

.back-link {
    width: fit-content;
    min-height: 34px;
    display: inline-flex;
    align-items: center;
    padding: 0 var(--space-3);
    margin-bottom: 0;
    color: var(--text-secondary);
    font-size: var(--text-sm);
}

.tool-header {
    margin: var(--space-2) 0 0;
}

.tool-header h1 {
    max-width: 24ch;
    font-size: clamp(1.75rem, 3vw, 2.75rem);
    line-height: 1.05;
    letter-spacing: -0.02em;
    overflow-wrap: anywhere;
}

.tool-description {
    max-width: 72ch;
    margin: 0 0 var(--space-2);
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.tool-content {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-4);
    align-items: start;
    min-width: 0;
}

.tool-header,
.tool-description,
.tool-content > *,
.workbench-panel {
    min-width: 0;
}

.workbench-panel,
.tool-content > .input-group,
.tool-content > .options-group,
.tool-content > .input-section,
.tool-content > .result-container,
.tool-content > [id$="result-container"],
.tool-content > [id$="-result"] {
    margin: 0;
    padding: var(--space-4);
    border: 1px solid var(--border);
    border-radius: var(--panel-radius);
    background: var(--surface-1);
    box-shadow: var(--shadow-sm);
}

.service-note {
    max-width: 76ch;
    margin: var(--space-3) 0 0;
    color: var(--text-secondary);
}

.workbench-panel--result,
.tool-content > .result-container,
.tool-content > [id$="result-container"],
.tool-content > [id$="-result"] {
    border-color: color-mix(in srgb, var(--accent) 28%, var(--border));
}

.input-group,
.field,
.form-group {
    gap: var(--space-3);
}

.field__label,
.input-group label,
.form-group label,
.options-group > label:first-child,
.option-group > label:first-child,
.result-container h3,
.result-container h4,
.preview-container h3,
.info-card h3,
.results-section h3 {
    color: var(--text);
    font-size: var(--text-xs);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

textarea,
input[type="text"],
input[type="number"],
input[type="search"],
input[type="password"],
input[type="email"],
input[type="url"],
input[type="file"],
select {
    min-height: 44px;
    border-radius: var(--panel-radius);
    border-color: var(--input-border);
    background: var(--input-bg);
    color: var(--text);
}

textarea {
    min-height: clamp(200px, 30vh, 260px);
    padding: var(--space-4);
    font-size: 0.95rem;
}

.tool-content textarea {
    width: 100%;
}

select {
    padding-right: var(--space-7);
}

.btn,
button.primary,
button.secondary {
    min-height: 40px;
    height: auto;
    padding: 0.68rem 0.95rem;
    border-radius: var(--panel-radius);
    border-color: var(--border-strong);
    box-shadow: none;
    font-size: var(--text-sm);
    letter-spacing: 0;
}

.btn:hover:not(:disabled),
button.primary:hover:not(:disabled),
button.secondary:hover:not(:disabled) {
    border-color: var(--accent);
}

.btn--primary,
button.primary,
.btn.primary {
    background: var(--button-bg);
    color: var(--button-text);
    border-color: var(--button-bg);
}

.btn--primary:hover:not(:disabled),
button.primary:hover:not(:disabled),
.btn.primary:hover:not(:disabled) {
    background: var(--button-hover);
    border-color: var(--button-hover);
}

button.secondary,
.btn.secondary {
    background: var(--surface-2);
    color: var(--text);
}

.search-container .input-group {
    display: grid;
    grid-template-columns: minmax(220px, 1fr) auto auto;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
}

.search-container .input-group input {
    min-width: 0;
}

.search-container .input-group button {
    width: auto;
    min-width: 88px;
}

.input-controls,
.toolbar,
.action-buttons,
.result-actions,
.example-buttons,
.text-center {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    align-items: center;
    margin-top: var(--space-3);
}

.text-center {
    justify-content: center;
    text-align: center;
}

.text-center > button.primary,
.text-center > .primary {
    min-width: min(100%, 200px);
}

.options-group,
.option-group,
.options-container {
    border-color: var(--border);
    border-radius: var(--panel-radius);
    background: var(--surface-1);
}

.options-controls,
.checkbox-group,
.radio-group,
.options-grid,
.field-config-row,
.cron-options {
    gap: var(--space-2);
}

.options-controls label,
.checkbox-label,
.radio-label,
.toggle-label {
    min-height: 38px;
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--border);
    border-radius: var(--panel-radius);
    background: var(--surface-2);
    color: var(--text-secondary);
}

input[type="checkbox"],
input[type="radio"] {
    width: 17px;
    height: 17px;
}

.input-with-prefix,
.input-with-suffix,
.input-with-button {
    display: flex;
    align-items: stretch;
    gap: var(--space-2);
}

.input-prefix,
.input-suffix {
    min-width: 40px;
    display: inline-grid;
    place-items: center;
    border: 1px solid var(--border);
    border-radius: var(--panel-radius);
    background: var(--surface-2);
    color: var(--text-muted);
}

.tab-buttons,
.tabs {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1);
    margin-bottom: var(--space-4);
    padding: var(--space-1);
    border: 1px solid var(--border);
    border-radius: var(--panel-radius);
    background: var(--surface-2);
}

.tab-button,
.tab-btn,
.tab {
    min-height: 38px;
    padding: 0 var(--space-3);
    border: 1px solid transparent;
    border-radius: calc(var(--panel-radius) - 2px);
    color: var(--text-secondary);
    background: transparent;
}

.tab-button::before,
.tab-button::after,
.tab-btn::before,
.tab-btn::after,
.tab::before,
.tab::after {
    display: none !important;
    content: none !important;
}

.tab-button:hover,
.tab-btn:hover,
.tab:hover,
.tab-button.active,
.tab-btn.active,
.tab.active {
    border-color: var(--border);
    background: var(--surface-1);
    color: var(--text);
}

.file-upload,
.upload-area,
.drop-zone {
    display: grid;
    place-items: center;
    min-height: 160px;
    padding: var(--space-5);
    border: 1px dashed var(--border-strong);
    border-radius: var(--panel-radius);
    background: var(--surface-2);
    color: var(--text-secondary);
}

.file-upload:hover,
.upload-area:hover,
.drop-zone:hover {
    border-color: var(--accent);
    background: var(--accent-soft);
}

.file-upload-label {
    display: grid;
    gap: var(--space-3);
    place-items: center;
    cursor: pointer;
}

.result-container {
    margin-top: 0;
}

.preview-container,
.diff-inputs {
    display: grid;
    gap: var(--space-4);
    align-items: stretch;
}

.preview-container > *,
.diff-inputs > * {
    min-width: 0;
}

.preview-container textarea,
.preview-container .preview-panel,
.mermaid-preview,
.markdown-preview {
    min-height: clamp(300px, 42vh, 500px);
}

.diff-inputs textarea {
    min-height: clamp(260px, 36vh, 420px);
}

.diff-view,
.diff-view-inline,
.diff-original,
.diff-modified,
.tree-container,
.tree-view,
.table-preview,
.highlighted-content,
.output-wrapper,
.schema-editor,
.editor-container,
.CodeMirror {
    min-height: 300px;
}

.editor-container,
.CodeMirror {
    min-height: clamp(360px, 50vh, 560px) !important;
}

.result-container textarea,
.result-container pre {
    min-height: 220px;
}

.result-item,
.info-item,
.stat-item,
.component-group,
.jwt-part,
.match-item,
.subnet-details,
.accordion-item {
    padding: var(--space-4);
    border: 1px solid var(--border);
    border-radius: var(--panel-radius);
    background: var(--surface-2);
}

.result-label,
.info-label,
.stat-label,
.component-label {
    color: var(--text-muted);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.result-value,
.info-value,
.stat-value,
.component-value,
.value,
.binary-value {
    color: var(--text);
    overflow-wrap: anywhere;
}

.info-grid,
.conversion-results,
.stats-grid,
.component-grid,
.result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: var(--space-3);
}

.info-card,
.preview-panel,
.result-box,
.warning-box,
.preview-container,
.results-section,
.subnet-list {
    padding: var(--space-5);
    border: 1px solid var(--border);
    border-radius: var(--panel-radius);
    background: var(--surface-1);
}

.table-preview {
    overflow: auto;
    border: 1px solid var(--border);
    border-radius: var(--panel-radius);
    background: var(--surface-1);
}

.table-preview,
.csv-table,
table {
    width: 100%;
}

table {
    border-collapse: collapse;
    min-width: 560px;
}

th,
td {
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--border);
    text-align: left;
    vertical-align: top;
}

th {
    position: sticky;
    top: 0;
    z-index: 1;
    background: var(--surface-2);
    color: var(--text);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.jsoneditor,
.jsoneditor *,
.jsoneditor *::before,
.jsoneditor *::after {
    box-sizing: content-box;
}

.jsoneditor .jsoneditor-navigation-bar,
.jsoneditor .jsoneditor-statusbar {
    box-sizing: border-box;
}

.jsoneditor input,
.jsoneditor input:not([type]),
.jsoneditor input[type="text"],
.jsoneditor input[type="search"],
.jsoneditor select,
.jsoneditor textarea {
    min-height: 0;
    height: auto;
    width: auto;
    padding: inherit;
    border-color: inherit;
    border-radius: 0;
    background: inherit;
    color: inherit;
    box-shadow: none;
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    transition: none;
}

.jsoneditor .jsoneditor-search input {
    width: 120px;
}

.jsoneditor input:focus-visible,
.jsoneditor input:not([type]):focus-visible,
.jsoneditor input[type="text"]:focus-visible,
.jsoneditor input[type="search"]:focus-visible,
.jsoneditor select:focus-visible,
.jsoneditor textarea:focus-visible {
    outline: 2px solid var(--focus-ring) !important;
    outline-offset: 1px !important;
    border-color: inherit !important;
}

.jsoneditor table {
    width: auto;
    min-width: 0;
    border-collapse: separate;
}

.jsoneditor table.jsoneditor-tree {
    width: 100%;
}

.jsoneditor th,
.jsoneditor td {
    position: static;
    padding: 0;
    border-bottom: 0;
    background: transparent;
    color: inherit;
    font-size: inherit;
    letter-spacing: 0;
    text-align: left;
    text-transform: none;
    vertical-align: top;
}

.jsoneditor td.jsoneditor-separator {
    padding: 3px 0;
}

pre,
code,
.highlighted-content,
.markdown-preview,
.tree-view,
.diff-output,
.output-wrapper {
    border-color: var(--border);
    border-radius: var(--panel-radius);
    background: var(--code-bg);
    color: var(--code-text);
}

pre {
    box-shadow: none;
}

.alert,
.error-message,
.success-message {
    border-radius: var(--panel-radius);
    box-shadow: none;
}

.current-time {
    padding: var(--space-4);
    border: 1px solid var(--border);
    border-radius: var(--panel-radius);
    background: var(--code-bg);
    color: var(--text);
    font-size: clamp(1rem, 3vw, 1.6rem);
}

.password-output,
.generated-string,
.color-preview,
.qr-output,
canvas {
    border-radius: var(--panel-radius);
}

.app-footer,
footer {
    border-top-color: var(--border);
}

@media (min-width: 1080px) {
    .preview-container,
    .diff-inputs,
    .diff-view.side-by-side {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    }

    .tool-content:has(#input-format):has(#input-content):has(#visualize-btn) {
        grid-template-columns: minmax(0, 1fr);
    }

    .tool-content:has(#input-format):has(#input-content):has(#visualize-btn) > * {
        grid-column: 1 / -1;
    }

}

@media (max-width: 880px) {
    :root {
        --page-max: 100%;
        --tool-max: 100%;
    }

    .tool-list {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }
}

@media (max-width: 640px) {
    .top-bar,
    .page,
    .tool-container,
    .app-footer,
    footer {
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }

    .intro {
        padding-bottom: var(--space-5);
    }

    .intro h1,
    .tool-header h1 {
        font-size: clamp(1.65rem, 8vw, 2.15rem);
        line-height: 1.08;
    }

    .tool-description {
        font-size: 0.9rem;
    }

    .tool-list {
        grid-template-columns: 1fr;
    }

    .workbench-panel,
    .tool-content > .input-group,
    .tool-content > .options-group,
    .tool-content > .input-section,
    .tool-content > .result-container,
    .tool-content > [id$="result-container"],
    .tool-content > [id$="-result"],
    .info-card,
    .preview-panel,
    .result-box,
    .warning-box,
    .preview-container,
    .results-section,
    .subnet-list {
        padding: var(--space-3);
    }

    .input-with-button {
        flex-direction: column;
    }

    .input-with-button > button {
        width: 100%;
    }

    .input-controls,
    .toolbar,
    .action-buttons,
    .result-actions,
    .example-buttons,
    .text-center {
        align-items: stretch;
    }

    .input-controls > *,
    .toolbar > *,
    .action-buttons > *,
    .result-actions > *,
    .example-buttons > * {
        flex: 1 1 140px;
        min-width: 0;
    }

    .text-center > * {
        flex: 0 1 auto;
        min-width: min(100%, 180px);
    }

    .search-container .input-group {
        grid-template-columns: minmax(0, 1fr) auto auto;
    }

    .options-controls label,
    .checkbox-label,
    .radio-label,
    .toggle-label {
        width: 100%;
    }

    textarea {
        min-height: 200px;
    }

    .preview-container textarea,
    .preview-container .preview-panel,
    .mermaid-preview,
    .markdown-preview {
        min-height: 280px;
    }

    .editor-container,
    .CodeMirror {
        min-height: 320px !important;
    }
}

@media (max-width: 420px) {
    .search-container .input-group {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    }

    .search-container .input-group input {
        grid-column: 1 / -1;
    }

    .search-container .input-group button {
        width: 100%;
        min-width: 0;
    }
}

@media (prefers-reduced-motion: no-preference) {
    .icon-btn,
    .theme-toggle-btn,
    .tool__link,
    .back-link,
    .btn,
    button.primary,
    button.secondary,
    .file-upload,
    .upload-area,
    .drop-zone {
        transition:
            color var(--duration-base) var(--ease-out),
            background-color var(--duration-base) var(--ease-out),
            border-color var(--duration-base) var(--ease-out);
    }
}

/* ============================================================
   2026 UX pass — catalog-first homepage and calmer workbenches
   ============================================================ */

body:not(.tool-page-shell) .top-bar,
body:not(.tool-page-shell) .page,
body:not(.tool-page-shell) .app-footer { max-width: 1180px; }
body:not(.tool-page-shell) .top-bar {
    padding: var(--space-5) 0;
    border-bottom: 1px solid var(--border);
}
body:not(.tool-page-shell) .top-bar__brand,
body:not(.tool-page-shell) .icon-btn,
body:not(.tool-page-shell) .theme-toggle-btn {
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}
body:not(.tool-page-shell) .top-bar__brand { padding: 0; }
body:not(.tool-page-shell) .icon-btn:hover,
body:not(.tool-page-shell) .theme-toggle-btn:hover { background: var(--accent-soft); color: var(--accent); }
body:not(.tool-page-shell) .page { padding-top: clamp(1.75rem, 4vw, 3.5rem); }

body:not(.tool-page-shell) .utility-hero {
    position: relative;
    display: grid;
    grid-template-columns: minmax(14rem, 0.72fr) minmax(24rem, 1.28fr);
    align-items: center;
    gap: clamp(2rem, 6vw, 5rem);
    overflow: hidden;
    margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
    padding: clamp(2rem, 5vw, 4rem);
    border: 1px solid #1b4d9d;
    border-top: 5px solid #79a9ff;
    border-radius: 2px;
    background-color: #12336b;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.055) 1px, transparent 1px);
    background-size: 32px 32px;
    color: #f7f9ff;
}

body:not(.tool-page-shell) .utility-hero::after {
    content: '';
    position: absolute;
    right: -4rem;
    bottom: -5rem;
    width: 14rem;
    height: 14rem;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 50%;
    box-shadow: 0 0 0 2.5rem rgba(255, 255, 255, 0.025), 0 0 0 5rem rgba(255, 255, 255, 0.02);
    pointer-events: none;
}

.utility-hero__intro,
.utility-hero .search-shell { position: relative; z-index: 1; }
.utility-hero__kicker,
.search-shell__label {
    margin: 0 0 var(--space-3);
    color: #b9d1ff;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}
.utility-hero h1 {
    margin: 0;
    color: #fff;
    font-size: clamp(3rem, 6vw, 5rem);
    line-height: 0.94;
    letter-spacing: -0.055em;
}
.utility-hero__lede {
    max-width: 26ch;
    margin: var(--space-4) 0 0;
    color: #ccd8ee;
    font-size: clamp(1rem, 2vw, 1.15rem);
    line-height: 1.5;
}

.search-shell {
    margin: 0;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
}
.search-shell__label { display: block; color: #dbe6fb; }
.search-shell .search { margin: 0; }
.search-shell .search input {
    height: 64px;
    padding-right: 4.25rem;
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 2px;
    background: #fff;
    box-shadow: 6px 6px 0 rgba(4, 18, 43, 0.35);
    color: #111827;
    font-size: 1.05rem;
}
.search-shell .search input::placeholder { color: #657184; }
.search-shell .search input:focus { border-color: #9bc0ff; box-shadow: 6px 6px 0 rgba(4, 18, 43, 0.35), 0 0 0 3px rgba(155, 192, 255, 0.35); }
.utility-hero .search__icon { color: #335170; }
.search__shortcut {
    position: absolute;
    right: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    min-width: 28px;
    height: 28px;
    display: grid;
    place-items: center;
    border: 1px solid var(--border-strong);
    border-bottom-width: 2px;
    border-radius: 2px;
    background: #eef3fb;
    color: #335170;
    font-size: var(--text-xs);
}
.search:has(.search__clear:not(.hidden)) .search__shortcut { display: none; }
.search-shell__meta {
    display: flex;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-3) 0 0;
    font-family: var(--font-mono);
    font-size: 0.72rem;
}
.search-shell__meta p { color: #b9c8df; }
.search-shell__meta strong { color: var(--text); font-weight: 600; }

.catalog-layout {
    display: grid;
    grid-template-columns: 180px minmax(0, 1fr);
    align-items: start;
    gap: clamp(2rem, 5vw, 4.5rem);
}
.category-nav {
    position: sticky;
    top: var(--space-5);
    display: grid;
    gap: 2px;
    padding-left: var(--space-3);
    border-left: 1px solid var(--border-strong);
}
.category-nav__label {
    margin: 0 0 var(--space-2);
    padding: 0 var(--space-2);
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.category-nav__link {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--space-3);
    padding: 0.5rem var(--space-2);
    border-radius: 2px;
    color: var(--text-secondary);
    font-size: var(--text-sm);
    line-height: 1.25;
}
.category-nav__link:hover,
.category-nav__link:focus-visible { background: var(--accent-soft); color: var(--accent); text-decoration: none; }
.catalog { min-width: 0; }
.catalog .section { scroll-margin-top: var(--space-5); margin-bottom: clamp(3rem, 7vw, 5.5rem); }
.catalog .section__title {
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: 0 0 var(--space-4);
    color: var(--text);
    font-family: var(--font-display);
    font-size: clamp(1.35rem, 2vw, 1.65rem);
    font-weight: 700;
    letter-spacing: -0.025em;
    text-transform: none;
}
.catalog .section__title::before {
    content: '';
    width: 8px;
    height: 8px;
    flex: 0 0 auto;
    background: var(--accent);
}
.catalog .tool-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-top: 1px solid var(--border-strong);
}
.catalog .tool { min-width: 0; }
.catalog .tool:nth-child(odd) .tool__link { border-right: 1px solid var(--border); }
.catalog .tool__link {
    min-height: 96px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-content: center;
    align-items: center;
    gap: var(--space-1) var(--space-4);
    margin: 0;
    padding: var(--space-4) clamp(1rem, 2vw, 1.4rem);
    border: 0;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}
.catalog .tool__link:hover,
.catalog .tool__link.is-active { background: var(--accent-soft); }
.catalog .tool__name {
    display: block;
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    font-weight: 600;
}
.catalog .tool__desc {
    grid-column: 1;
    max-width: 42ch;
    color: var(--text-secondary);
    font-size: var(--text-sm);
    line-height: 1.4;
}
.catalog .tool__link::after { grid-column: 2; grid-row: 1 / span 2; align-self: center; }
body.is-searching .category-nav { visibility: hidden; }
body.is-searching .catalog .section__title {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.no-results-message {
    max-width: 46rem;
    margin-left: auto;
    padding: var(--space-7);
    border: 1px dashed var(--border-strong);
    background: transparent;
    color: var(--text-secondary);
}
.no-results-message::before { content: none; }

/* Tool pages */
body.tool-page-shell .top-bar,
body[data-workbench="tool"] .top-bar,
body.tool-page-shell .tool-container,
body[data-workbench="tool"] .tool-container,
body.tool-page-shell .app-footer,
body[data-workbench="tool"] .app-footer { max-width: 1120px; }
body.tool-page-shell .tool-container,
body[data-workbench="tool"] .tool-container { padding-top: clamp(2rem, 5vw, 4rem); }
body.tool-page-shell .tool-container .container,
body[data-workbench="tool"] .tool-container .container { gap: 0; }
body.tool-page-shell .back-link,
body[data-workbench="tool"] .back-link {
    min-height: 44px;
    margin: 0 0 var(--space-6);
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
}
body.tool-page-shell .tool-header,
body[data-workbench="tool"] .tool-header { margin: 0; }
body.tool-page-shell .tool-header h1,
body[data-workbench="tool"] .tool-header h1 {
    max-width: 28ch;
    margin-bottom: var(--space-3);
    font-size: clamp(2.25rem, 5vw, 4rem);
    line-height: 0.98;
    letter-spacing: -0.045em;
}
body.tool-page-shell .tool-description,
body[data-workbench="tool"] .tool-description {
    max-width: 68ch;
    margin: 0 0 var(--space-8);
    font-size: 1.05rem;
    line-height: 1.55;
}
body.tool-page-shell .tool-content,
body[data-workbench="tool"] .tool-content { gap: var(--space-5); }
body.tool-page-shell .workbench-panel,
body[data-workbench="tool"] .workbench-panel,
body.tool-page-shell .tool-content > .result-container,
body[data-workbench="tool"] .tool-content > .result-container {
    padding: clamp(1rem, 3vw, 1.5rem);
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--surface-1);
    box-shadow: none;
}
body.tool-page-shell .workbench-panel--result,
body[data-workbench="tool"] .workbench-panel--result {
    border-color: var(--border-strong);
    background: color-mix(in srgb, var(--surface-1) 94%, var(--accent-soft));
}
body.tool-page-shell .field__label,
body.tool-page-shell .input-group label,
body.tool-page-shell .form-group label,
body.tool-page-shell .options-group > label:first-child,
body.tool-page-shell .option-group > label:first-child,
body.tool-page-shell .result-container h3,
body.tool-page-shell .result-container h4,
body[data-workbench="tool"] .field__label,
body[data-workbench="tool"] .input-group label,
body[data-workbench="tool"] .form-group label,
body[data-workbench="tool"] .options-group > label:first-child,
body[data-workbench="tool"] .option-group > label:first-child,
body[data-workbench="tool"] .result-container h3,
body[data-workbench="tool"] .result-container h4 {
    color: var(--text);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    letter-spacing: 0;
    text-transform: none;
}
body.tool-page-shell textarea,
body.tool-page-shell input[type="text"],
body.tool-page-shell input[type="number"],
body.tool-page-shell input[type="search"],
body.tool-page-shell input[type="password"],
body.tool-page-shell input[type="email"],
body.tool-page-shell input[type="url"],
body.tool-page-shell input[type="file"],
body.tool-page-shell select { min-height: 44px; border-radius: 4px; }
body.tool-page-shell .btn,
body.tool-page-shell button.primary,
body.tool-page-shell button.secondary,
body[data-workbench="tool"] .btn,
body[data-workbench="tool"] button.primary,
body[data-workbench="tool"] button.secondary {
    min-height: 44px;
    border-radius: 5px;
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
}
body.tool-page-shell .btn--primary,
body.tool-page-shell button.primary,
body.tool-page-shell .btn.primary,
body[data-workbench="tool"] .btn--primary,
body[data-workbench="tool"] button.primary,
body[data-workbench="tool"] .btn.primary {
    background: var(--accent) !important;
    border-color: var(--accent) !important;
    color: #fff !important;
}
body.tool-page-shell .btn--primary:hover:not(:disabled),
body.tool-page-shell button.primary:hover:not(:disabled),
body.tool-page-shell .btn.primary:hover:not(:disabled),
body[data-workbench="tool"] .btn--primary:hover:not(:disabled),
body[data-workbench="tool"] button.primary:hover:not(:disabled),
body[data-workbench="tool"] .btn.primary:hover:not(:disabled) {
    background: var(--accent-hover) !important;
    border-color: var(--accent-hover) !important;
}
body.tool-page-shell .options-controls label,
body.tool-page-shell .checkbox-label,
body.tool-page-shell .radio-label,
body.tool-page-shell .toggle-label,
body[data-workbench="tool"] .options-controls label,
body[data-workbench="tool"] .checkbox-label,
body[data-workbench="tool"] .radio-label,
body[data-workbench="tool"] .toggle-label {
    min-height: 34px;
    padding: var(--space-1) 0;
    border: 0;
    background: transparent;
    color: var(--text-secondary);
}
body.tool-page-shell .tab-buttons,
body.tool-page-shell .tabs,
body[data-workbench="tool"] .tab-buttons,
body[data-workbench="tool"] .tabs {
    padding: 0;
    border: 0;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
    background: transparent;
}
body.tool-page-shell .tab-button,
body.tool-page-shell .tab-btn,
body.tool-page-shell .tab,
body[data-workbench="tool"] .tab-button,
body[data-workbench="tool"] .tab-btn,
body[data-workbench="tool"] .tab {
    min-height: 44px !important;
    margin: 0 !important;
    padding: 0 var(--space-4) !important;
    border: 0 !important;
    border-bottom: 2px solid transparent !important;
    border-radius: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
    color: var(--text-secondary) !important;
    transform: none !important;
}
body.tool-page-shell .tab-button:hover,
body.tool-page-shell .tab-btn:hover,
body.tool-page-shell .tab:hover,
body.tool-page-shell .tab-button.active,
body.tool-page-shell .tab-btn.active,
body.tool-page-shell .tab.active,
body[data-workbench="tool"] .tab-button:hover,
body[data-workbench="tool"] .tab-btn:hover,
body[data-workbench="tool"] .tab:hover,
body[data-workbench="tool"] .tab-button.active,
body[data-workbench="tool"] .tab-btn.active,
body[data-workbench="tool"] .tab.active {
    border-bottom-color: var(--accent) !important;
    color: var(--text) !important;
}
body.tool-page-shell .tab-content,
body[data-workbench="tool"] .tab-content {
    padding: var(--space-5) 0 !important;
    border: 0 !important;
    border-radius: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
    animation: none !important;
}

body.tool-page-shell .tool-content > .text-center,
body[data-workbench="tool"] .tool-content > .text-center {
    justify-content: flex-start;
    margin-top: 0;
}

@media (min-width: 760px) {
    body.tool-page-shell .tool-content:has(> .options-group + .options-group),
    body[data-workbench="tool"] .tool-content:has(> .options-group + .options-group) {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    body.tool-page-shell .tool-content:has(> .options-group + .options-group) > *,
    body[data-workbench="tool"] .tool-content:has(> .options-group + .options-group) > * {
        grid-column: 1 / -1;
    }

    body.tool-page-shell .tool-content:has(> .options-group + .options-group) > .options-group,
    body[data-workbench="tool"] .tool-content:has(> .options-group + .options-group) > .options-group {
        grid-column: auto;
    }
}

@media (max-width: 820px) {
    body:not(.tool-page-shell) .utility-hero {
        grid-template-columns: 1fr;
        gap: var(--space-7);
    }
    .catalog-layout { grid-template-columns: 1fr; gap: var(--space-7); }
    .category-nav {
        position: static;
        display: flex;
        gap: var(--space-1);
        margin: 0 calc(var(--space-4) * -1);
        padding: 0 var(--space-4) var(--space-2);
        border-left: 0;
        overflow-x: auto;
        scrollbar-width: none;
        -webkit-mask-image: linear-gradient(to right, #000 calc(100% - 2rem), transparent);
        mask-image: linear-gradient(to right, #000 calc(100% - 2rem), transparent);
    }
    .category-nav::-webkit-scrollbar { display: none; }
    .category-nav__label { display: none; }
    .category-nav__link {
        flex: 0 0 auto;
        display: block;
        padding: 0.55rem 0.75rem;
        border: 1px solid var(--border);
        background: var(--surface-1);
        white-space: nowrap;
    }
    body.is-searching .category-nav { display: none; }
    .catalog .tool-list { grid-template-columns: 1fr; }
    .catalog .tool:nth-child(odd) .tool__link { border-right: 0; }
}

@media (max-width: 640px) {
    body:not(.tool-page-shell) .page { padding-top: var(--space-5); }
    body:not(.tool-page-shell) .utility-hero {
        margin-right: calc(var(--space-2) * -1);
        margin-left: calc(var(--space-2) * -1);
        padding: var(--space-6) var(--space-5);
    }
    body:not(.tool-page-shell) .utility-hero h1 { font-size: clamp(2.75rem, 15vw, 4rem); }
    .utility-hero .search-shell { margin: 0; padding: 0; }
    .search-shell .search input { height: 56px; font-size: var(--text-base); }
    .search-shell__meta { display: grid; gap: 2px; }
    .catalog .tool__link {
        min-height: 78px;
        grid-template-columns: minmax(0, 1fr) auto;
        gap: 2px var(--space-3);
        padding: var(--space-3) var(--space-2);
    }
    .catalog .tool__name { font-size: var(--text-base); }
    .catalog .tool__desc { grid-column: 1; }
    .catalog .tool__link::after { grid-column: 2; grid-row: 1 / span 2; align-self: center; }
    body.tool-page-shell .tool-header h1,
    body[data-workbench="tool"] .tool-header h1 { font-size: clamp(2rem, 10vw, 2.8rem); }
    body.tool-page-shell .tool-description,
    body[data-workbench="tool"] .tool-description { margin-bottom: var(--space-6); font-size: var(--text-base); }

    body.tool-page-shell .options-controls label,
    body[data-workbench="tool"] .options-controls label {
        width: auto;
        flex: 0 1 auto;
    }

    body.tool-page-shell .tool-content > .text-center > button.primary,
    body.tool-page-shell .tool-content > .text-center > .primary,
    body[data-workbench="tool"] .tool-content > .text-center > button.primary,
    body[data-workbench="tool"] .tool-content > .text-center > .primary {
        width: 100%;
        max-width: none;
    }
}