:root {
    --mt-bg: #f6f8fb;
    --mt-surface: #ffffff;
    --mt-surface-alt: #eef2f7;
    --mt-text: #172033;
    --mt-muted: #657086;
    --mt-border: #d9e0ea;
    --mt-primary: #1b6ec2;
    --mt-primary-strong: #15569b;
    --mt-danger: #b42318;
    --mt-success-bg: #e8f7ef;
    --mt-success-text: #17663a;
    --mt-warning-bg: #fff6df;
    --mt-warning-text: #7a4d00;
    --mt-sidebar: #172033;
    --mt-sidebar-text: #f7fafc;
    --mt-sidebar-link: #d8dee9;
    --mt-sidebar-muted: #98a6ba;
}

:root[data-theme="dark"] {
    --mt-bg: #10151f;
    --mt-surface: #171e2b;
    --mt-surface-alt: #202a3a;
    --mt-text: #eef3fb;
    --mt-muted: #aab6c8;
    --mt-border: #2d384b;
    --mt-primary: #6aa6ff;
    --mt-primary-strong: #8bb9ff;
    --mt-danger: #ff8a7a;
    --mt-success-bg: #123823;
    --mt-success-text: #9be4b8;
    --mt-warning-bg: #3b2b0e;
    --mt-warning-text: #ffd47a;
    --mt-sidebar: #0e1420;
    --mt-sidebar-text: #f7fafc;
    --mt-sidebar-link: #d7deeb;
    --mt-sidebar-muted: #8996aa;
}

@media (prefers-color-scheme: dark) {
    :root[data-theme="system"] {
        --mt-bg: #10151f;
        --mt-surface: #171e2b;
        --mt-surface-alt: #202a3a;
        --mt-text: #eef3fb;
        --mt-muted: #aab6c8;
        --mt-border: #2d384b;
        --mt-primary: #6aa6ff;
        --mt-primary-strong: #8bb9ff;
        --mt-danger: #ff8a7a;
        --mt-success-bg: #123823;
        --mt-success-text: #9be4b8;
        --mt-warning-bg: #3b2b0e;
        --mt-warning-text: #ffd47a;
        --mt-sidebar: #0e1420;
        --mt-sidebar-text: #f7fafc;
        --mt-sidebar-link: #d7deeb;
        --mt-sidebar-muted: #8996aa;
    }
}

html,
body {
    background: var(--mt-bg);
    color: var(--mt-text);
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

a,
.btn-link {
    color: var(--mt-primary);
}

a:hover {
    color: var(--mt-primary-strong);
}

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

.btn-primary:hover {
    background-color: var(--mt-primary-strong);
    border-color: var(--mt-primary-strong);
}

.btn-outline-secondary {
    color: var(--mt-text);
    border-color: var(--mt-border);
}

.btn-outline-secondary:hover {
    color: var(--mt-text);
    background: var(--mt-surface-alt);
    border-color: var(--mt-border);
}

.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-check-input:focus {
    box-shadow: 0 0 0 0.1rem var(--mt-surface), 0 0 0 0.25rem rgba(27, 110, 194, 0.35);
}

h1:focus {
    outline: none;
}

.home-hero {
    max-width: 760px;
    margin-bottom: 1.5rem;
}

.home-hero h1 {
    font-size: clamp(2rem, 4vw, 3.25rem);
    line-height: 1.05;
    margin-bottom: 1rem;
}

.home-hero p {
    color: var(--mt-muted);
    font-size: 1.05rem;
}

.eyebrow {
    color: var(--mt-primary);
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

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

.tool-card {
    background: var(--mt-surface);
    border: 1px solid var(--mt-border);
    border-radius: 6px;
    color: var(--mt-text);
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    min-height: 11rem;
    padding: 1rem;
    text-decoration: none;
}

.tool-card:hover {
    border-color: var(--mt-primary);
    color: var(--mt-text);
}

.tool-card span {
    color: var(--mt-muted);
    font-size: 0.8rem;
}

.tool-card strong {
    font-size: 1.1rem;
}

.tool-card p {
    color: var(--mt-muted);
    flex: 1;
    margin: 0;
}

.legal-page {
    max-width: 860px;
}

.legal-page h1 {
    font-size: 2.25rem;
    line-height: 1.1;
    margin-bottom: 0.35rem;
}

.legal-page h2 {
    font-size: 1.12rem;
    margin: 1.4rem 0 0.45rem;
}

.legal-page p {
    color: var(--mt-muted);
}

.legal-updated {
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.tool-shell {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.tool-heading {
    align-items: flex-start;
    display: flex;
    gap: 1rem;
    justify-content: space-between;
}

.tool-category {
    color: var(--mt-primary);
    font-size: 0.8rem;
    font-weight: 700;
    margin: 0 0 0.35rem;
    text-transform: uppercase;
}

.tool-description {
    color: var(--mt-muted);
    margin-bottom: 0;
}

.tool-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tool-panels {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 1rem;
}

.tool-panel {
    background: var(--mt-surface);
    border: 1px solid var(--mt-border);
    border-radius: 6px;
    min-width: 0;
    padding: 1rem;
}

.tool-panel-header {
    align-items: center;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}

.tool-label {
    color: var(--mt-text);
    display: block;
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.tool-textarea,
.tool-input,
.tool-output {
    background: var(--mt-bg);
    border: 1px solid var(--mt-border);
    border-radius: 6px;
    color: var(--mt-text);
    width: 100%;
}

.tool-textarea,
.tool-output {
    font-family: Consolas, "Liberation Mono", monospace;
    font-size: 0.95rem;
    line-height: 1.45;
    min-height: 24rem;
    padding: 0.85rem;
}

.tool-input {
    min-height: 2.45rem;
    padding: 0.4rem 0.6rem;
}

.tool-textarea {
    resize: vertical;
}

.tool-textarea-error {
    border-color: var(--mt-danger);
    box-shadow: 0 0 0 0.18rem rgba(180, 35, 24, 0.12);
}

.tool-textarea.compact {
    min-height: 10rem;
}

.tool-output {
    margin: 0;
    overflow: auto;
    white-space: pre-wrap;
}

.tool-status {
    color: var(--mt-success-text);
    font-size: 0.85rem;
}

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

.tool-help {
    color: var(--mt-muted);
    font-size: 0.9rem;
    margin: 0.75rem 0 0;
}

.tool-check {
    align-items: center;
    color: var(--mt-muted);
    display: inline-flex;
    gap: 0.4rem;
    min-height: 2.35rem;
}

.tool-mode-group {
    border: 1px solid var(--mt-border);
    border-radius: 6px;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 0 0 0.75rem;
    padding: 0.75rem;
}

.tool-mode-group .tool-label {
    float: none;
    margin-bottom: 0;
    padding: 0 0.25rem;
    width: auto;
}

.tool-mode-option {
    align-items: center;
    background: var(--mt-bg);
    border: 1px solid var(--mt-border);
    border-radius: 6px;
    color: var(--mt-text);
    display: inline-flex;
    gap: 0.4rem;
    min-height: 2.2rem;
    padding: 0.3rem 0.65rem;
}

.privacy-callout {
    background: var(--mt-success-bg);
    border: 1px solid color-mix(in srgb, var(--mt-success-text) 30%, var(--mt-border));
    border-radius: 6px;
    color: var(--mt-success-text);
    margin-bottom: 1rem;
    padding: 0.75rem;
}

.jwt-warning {
    background: var(--mt-warning-bg);
    border: 1px solid color-mix(in srgb, var(--mt-warning-text) 35%, var(--mt-border));
    border-radius: 6px;
    color: var(--mt-warning-text);
    margin-top: 0.75rem;
    padding: 0.75rem;
}

.jwt-warning-danger {
    background: color-mix(in srgb, var(--mt-danger) 10%, var(--mt-surface));
    border-color: color-mix(in srgb, var(--mt-danger) 45%, var(--mt-border));
    color: var(--mt-danger);
}

.jwt-meta-grid {
    display: grid;
    gap: 0.75rem;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    margin-top: 1rem;
}

.jwt-meta-card {
    background: var(--mt-bg);
    border: 1px solid var(--mt-border);
    border-radius: 6px;
    min-width: 0;
    padding: 0.75rem;
}

.jwt-meta-card span {
    color: var(--mt-muted);
    display: block;
    font-size: 0.78rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
    text-transform: uppercase;
}

.jwt-meta-card strong {
    display: block;
    font-size: 0.95rem;
    overflow-wrap: anywhere;
}

.jwt-pane-stack {
    display: grid;
    gap: 1rem;
}

.jwt-pane {
    min-width: 0;
}

.jwt-output {
    max-height: 16rem;
    min-height: 8rem;
}

.hash-output {
    min-height: 18rem;
    overflow-wrap: anywhere;
}

.uuid-version-panel {
    border: 1px solid var(--mt-border);
    border-radius: 6px;
    margin: 1rem 0 0;
    padding: 0.75rem;
}

.uuid-version-panel .tool-label {
    float: none;
    margin-bottom: 0;
    padding: 0 0.25rem;
    width: auto;
}

.time-zone-card {
    background: var(--mt-bg);
    border: 1px solid var(--mt-border);
    border-radius: 6px;
    margin-top: 1rem;
    padding: 0.75rem;
}

.time-zone-card span,
.time-zone-card small {
    color: var(--mt-muted);
    display: block;
    font-size: 0.82rem;
}

.time-zone-card strong {
    display: block;
    margin: 0.15rem 0;
    overflow-wrap: anywhere;
}

.cron-examples {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.diff-side-output {
    background: var(--mt-bg);
    border: 1px solid var(--mt-border);
    border-radius: 6px;
    font-family: Consolas, "Liberation Mono", monospace;
    font-size: 0.9rem;
    max-height: 34rem;
    overflow: auto;
}

.diff-row {
    display: grid;
    grid-template-columns: 4rem minmax(0, 1fr) 4rem minmax(0, 1fr);
}

.diff-row span {
    border-bottom: 1px solid var(--mt-border);
    min-height: 1.65rem;
    padding: 0.25rem 0.5rem;
    white-space: pre-wrap;
}

.diff-line-number {
    background: var(--mt-surface-alt);
    color: var(--mt-muted);
    text-align: right;
    user-select: none;
}

.diff-equal span {
    color: var(--mt-text);
}

.diff-added span {
    background: color-mix(in srgb, var(--mt-success-bg) 72%, var(--mt-surface));
}

.diff-removed span {
    background: color-mix(in srgb, var(--mt-danger) 10%, var(--mt-surface));
}

.qr-preview {
    align-items: center;
    background: var(--mt-bg);
    border: 1px solid var(--mt-border);
    border-radius: 6px;
    display: flex;
    justify-content: center;
    min-height: 20rem;
    overflow: auto;
    padding: 1rem;
}

.qr-preview svg {
    background: #fff;
    max-width: 100%;
}

.regex-flags {
    border: 1px solid var(--mt-border);
    border-radius: 6px;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 0.9rem;
    margin: 1rem 0;
    padding: 0.75rem;
}

.regex-flags .tool-label {
    float: none;
    margin-bottom: 0;
    padding: 0 0.25rem;
    width: auto;
}

.regex-highlight-output {
    background: var(--mt-bg);
    border: 1px solid var(--mt-border);
    border-radius: 6px;
    color: var(--mt-text);
    font-family: Consolas, "Liberation Mono", monospace;
    font-size: 0.95rem;
    line-height: 1.55;
    min-height: 9rem;
    overflow: auto;
    padding: 0.85rem;
    white-space: pre-wrap;
}

.regex-highlight-output:empty::before {
    color: var(--mt-muted);
    content: "Run a test to see highlighted matches.";
}

.regex-match {
    border-radius: 3px;
    color: #111827;
    padding: 0.05rem 0.15rem;
}

.regex-match-0 {
    background: #fde68a;
}

.regex-match-1 {
    background: #bfdbfe;
}

.regex-match-2 {
    background: #bbf7d0;
}

.regex-match-3 {
    background: #fecaca;
}

.regex-cheatsheet {
    border-top: 1px solid var(--mt-border);
    margin-top: 1rem;
    padding-top: 1rem;
}

.regex-cheatsheet h2 {
    font-size: 1rem;
    margin-bottom: 0.75rem;
}

.regex-cheatsheet dl {
    display: grid;
    gap: 0.45rem 0.75rem;
    grid-template-columns: max-content minmax(0, 1fr);
    margin: 0;
}

.regex-cheatsheet dt,
.regex-cheatsheet dd {
    margin: 0;
}

.regex-cheatsheet dt code {
    color: var(--mt-primary);
}

.regex-cheatsheet dd {
    color: var(--mt-muted);
}

.json-error-detail {
    background: color-mix(in srgb, var(--mt-danger) 10%, var(--mt-surface));
    border: 1px solid color-mix(in srgb, var(--mt-danger) 45%, var(--mt-border));
    border-radius: 6px;
    color: var(--mt-danger);
    font-size: 0.9rem;
    margin-top: 0.75rem;
    padding: 0.65rem 0.75rem;
}

.json-error-lines {
    border: 1px solid var(--mt-border);
    border-radius: 6px;
    font-family: Consolas, "Liberation Mono", monospace;
    font-size: 0.88rem;
    margin-top: 0.75rem;
    overflow: auto;
}

.json-error-line {
    display: grid;
    grid-template-columns: 3rem minmax(0, 1fr);
}

.json-error-line span {
    background: var(--mt-surface-alt);
    border-right: 1px solid var(--mt-border);
    color: var(--mt-muted);
    padding: 0.25rem 0.5rem;
    text-align: right;
    user-select: none;
}

.json-error-line code {
    color: var(--mt-text);
    overflow-wrap: anywhere;
    padding: 0.25rem 0.5rem;
    white-space: pre-wrap;
}

.json-error-line.active span,
.json-error-line.active code {
    background: color-mix(in srgb, var(--mt-danger) 13%, var(--mt-surface));
}

.json-tree {
    background: var(--mt-bg);
    border: 1px solid var(--mt-border);
    border-radius: 6px;
    font-family: Consolas, "Liberation Mono", monospace;
    font-size: 0.92rem;
    line-height: 1.5;
    max-height: 28rem;
    min-height: 12rem;
    overflow: auto;
    padding: 0.75rem;
}

.json-tree:empty::before {
    color: var(--mt-muted);
    content: "Format valid JSON to inspect it as a tree.";
}

.json-node {
    margin: 0.1rem 0;
}

.json-node summary {
    cursor: pointer;
    list-style-position: outside;
    padding: 0.12rem 0;
}

.json-children {
    border-left: 1px solid var(--mt-border);
    margin-left: 0.55rem;
    padding-left: 0.85rem;
}

.json-leaf {
    padding: 0.12rem 0;
}

.json-key {
    color: var(--mt-primary);
    font-weight: 700;
}

.json-value-string {
    color: var(--mt-success-text);
}

.json-value-number,
.json-value-boolean {
    color: var(--mt-warning-text);
}

.json-value-null {
    color: var(--mt-muted);
}

.privacy-badge {
    align-items: center;
    border-radius: 999px;
    display: inline-flex;
    gap: 0.35rem;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 0.35rem 0.6rem;
    white-space: nowrap;
}

.privacy-badge-local {
    background: var(--mt-success-bg);
    color: var(--mt-success-text);
}

.privacy-badge-server {
    background: var(--mt-warning-bg);
    color: var(--mt-warning-text);
}

.theme-toggle {
    background: var(--mt-bg);
    border: 1px solid var(--mt-border);
    border-radius: 6px;
    display: flex;
    padding: 0.15rem;
}

.theme-option {
    background: transparent;
    border: 0;
    border-radius: 4px;
    color: var(--mt-muted);
    font-size: 0.82rem;
    min-height: 1.9rem;
    padding: 0.25rem 0.55rem;
}

.theme-option.active {
    background: var(--mt-surface);
    color: var(--mt-text);
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.12);
}

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

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

.validation-message {
    color: #e50000;
}

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

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

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

@media (min-width: 1000px) {
    .tool-panels {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640.98px) {
    .tool-heading {
        flex-direction: column;
    }

    .tool-textarea,
    .tool-output {
        min-height: 16rem;
    }

    .theme-toggle {
        overflow-x: auto;
    }
}