/* Hallmark · theme: Editorial (existing project) · genre: editorial · shape: app screen · scope: app · screen: browser workbench · states: empty, error, full */
/* Critique: the editable input and its result carry the page; familiar controls and the existing paper/ink palette keep the examples legible. */
/* Waiver: dense educational prose appears below tools; long source URLs remain wrapping text. Preview snippets are user-editable content, not site styling. */
:root { --lab-code: ui-monospace, SFMono-Regular, Consolas, monospace; --lab-control: system-ui, sans-serif; }
html,body { overflow-x: clip; }
.lab-heading {padding:36px 0 24px;border-bottom:1px solid var(--color-rule);}
.lab-heading h1 {font-size:2.4rem;line-height:1.12;min-width:0;overflow-wrap:break-word;margin:0 0 12px;}
.lab-heading p {max-width:65ch;margin:0;}
.lab-nav {display:flex;flex-wrap:wrap;gap:8px;padding:20px 0;border-bottom:1px solid var(--color-rule);font-family:var(--lab-control);}
.lab-nav a {padding:12px 16px;border:1px solid var(--color-rule-2);text-decoration:none;color:var(--color-ink);}
.lab-nav a[aria-current] {background:var(--color-ink);color:var(--color-paper);}
.lab-panel {padding:28px 0 56px;}
[hidden] {display:none!important;}
.lab-panel h2 {font-size:1.8rem;margin:0 0 12px;overflow-wrap:break-word;min-width:0;}
.lab-panel h3 {font-size:1.2rem;}
.lab-grid {display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;margin:24px 0;}
.lab-grid>div {min-width:0;}
.lab-panel label {display:block;margin:12px 0 8px;font-family:var(--lab-control);font-size:.95rem;}
.lab-panel input,.lab-panel select,.lab-panel textarea {width:100%;min-height:44px;padding:12px;border:1px solid var(--color-rule-2);background:var(--color-paper);color:var(--color-ink);border-radius:0;font-family:var(--lab-control);}
.lab-panel textarea {font-family:var(--lab-code);font-size:.9rem;line-height:1.55;resize:vertical;tab-size:2;}
.lab-panel pre {white-space:pre-wrap;overflow-wrap:anywhere;max-height:440px;overflow:auto;padding:16px;border:1px solid var(--color-rule);background:var(--color-paper-2);font: .9rem/1.6 var(--lab-code);}
.lab-panel code {font-family:var(--lab-code);overflow-wrap:anywhere;}
.lab-actions {display:flex;flex-wrap:wrap;gap:8px;margin:16px 0;}
.lab-panel button {font-family:var(--lab-control);font-size:.95rem;padding:12px 16px;min-height:44px;border:1px solid var(--color-rule-2);background:var(--color-paper);color:var(--color-ink);cursor:pointer;}
.lab-panel :is(button,a,input,select,textarea,summary):focus-visible,.lab-nav a:focus-visible {outline:3px solid var(--color-focus);outline-offset:3px;}
.lab-panel button:hover {border-color:var(--color-ink);}
.lab-panel button:active {transform:translateY(1px);}
.lab-panel button:disabled {opacity:.55;cursor:not-allowed;}
.lab-status {font-variant-numeric:tabular-nums;min-height:1.8em;font-family:var(--lab-control);font-size:.9rem;}
.error {color:var(--color-error);}
.preview-wrap {background:var(--color-paper-3);padding:12px;}
#preview {display:block;width:100%;height:420px;border:1px solid var(--color-rule-2);margin:auto;background:var(--color-paper);}
.lab-help {max-width:76ch;border-top:1px solid var(--color-rule);padding-top:20px;margin-top:24px;}
.lab-help p {line-height:1.7;}
.api-row {display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr);gap:24px;border-top:1px solid var(--color-rule);padding:24px 0;}
.api-row h3 {margin:0 0 8px;}
.api-row p {margin:0 0 12px;}
.api-row small {display:block;font-size:.88rem;color:var(--color-muted);}
.guide-index {padding:32px 0;border-top:4px solid var(--color-ink);}
.guide-index article {padding:16px 0;border-top:1px solid var(--color-rule);display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;}
.guide-index h3 {margin:8px 0;font-size:1.2rem;}
.guide-index p {margin:8px 0;max-width:75ch;}
.lab-privacy {padding:28px 0;border-top:1px solid var(--color-rule);max-width:80ch;}
@media(max-width:760px){.lab-grid,.api-row,.guide-index article{grid-template-columns:minmax(0,1fr);gap:12px;}.lab-heading h1{font-size:2rem;}.lab-nav a{flex:1 1 44%;text-align:center;}.lab-panel{padding-top:24px;}#preview{height:360px;}}
@media(prefers-reduced-motion:reduce){.lab-panel button:active{transform:none;}}

.lab-heading h1,.lab-panel h2 {text-wrap:balance;}