[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"verticals":3,"playground-dialog-element-native-modal":32},[4,20],{"id":5,"slug":6,"name":7,"tagline":8,"description":9,"accentFrom":10,"accentTo":11,"icon":12,"defaultLocale":13,"locales":14,"features":16,"position":19},"019fe637-3d33-714b-b57f-23e163ffca0c","dev","Web Development","Build. Learn. Ship.","Practical courses, engineering-grade articles and open-source tools for people who ship.","violet-500","cyan-400","◇","en",[13,15],"fa",{"courses":17,"paths":17,"articles":17,"exams":18,"flashcards":18,"packages":17,"community":17,"certificates":17,"teams":17,"commerce":17},true,false,0,{"id":21,"slug":22,"name":23,"tagline":24,"description":25,"accentFrom":26,"accentTo":10,"icon":27,"defaultLocale":13,"locales":28,"features":30,"position":31},"019fe637-3dc2-754c-8657-0f175bfee7c6","lang","Languages","Learn a language the way you learn a codebase.","Structured paths, listening drills and spaced repetition that actually sticks.","amber-400","⌘",[13,15,29],"es",{"courses":18,"paths":18,"articles":17,"exams":18,"flashcards":17,"packages":18,"community":17,"certificates":17,"teams":18,"commerce":18},2,{"slug":33,"title":34,"summary":35,"html":36,"css":37,"js":38,"config":39,"doc":41},"dialog-element-native-modal","<dialog> — interactive playground",null,"\u003Cdiv class=\"pg\">\n    \u003Ch1 class=\"pg-title\">🎮 Native <dialog> in action\u003C\u002Fh1>\n    \u003Cp class=\"pg-sub\">\n      Open a modal, try closing it three ways, and watch what \u003Ccode>returnValue\u003C\u002Fcode> captures.\n      No libraries. No focus-trap code. No Escape handler.\n    \u003C\u002Fp>\n\n    \u003Cdiv class=\"panel\">\n      \u003Cdiv class=\"panel-label\">\u003Cspan class=\"n\">1\u003C\u002Fspan> Configure the backdrop\u003C\u002Fdiv>\n      \u003Cfieldset>\n        \u003Clegend>dialog::backdrop\u003C\u002Flegend>\n        \u003Cdiv class=\"option-row\">\n          \u003Clabel>\n            Opacity\n            \u003Cinput type=\"range\" id=\"backdropOpacity\" min=\"10\" max=\"80\" step=\"5\" value=\"50\" style=\"width:100px\" \u002F>\n            \u003Cspan class=\"mono\" id=\"opacityOut\">50%\u003C\u002Fspan>\n          \u003C\u002Flabel>\n        \u003C\u002Fdiv>\n        \u003Cdiv class=\"option-row\">\n          \u003Clabel>\n            \u003Cinput type=\"checkbox\" id=\"backdropBlur\" \u002F>\n            backdrop-filter: blur(6px)\n          \u003C\u002Flabel>\n        \u003C\u002Fdiv>\n        \u003Cdiv class=\"option-row\">\n          \u003Clabel>\n            \u003Cinput type=\"checkbox\" id=\"backdropClick\" checked \u002F>\n            Close on backdrop click\n          \u003C\u002Flabel>\n        \u003C\u002Fdiv>\n      \u003C\u002Ffieldset>\n    \u003C\u002Fdiv>\n\n    \u003Cdiv class=\"panel\">\n      \u003Cdiv class=\"panel-label\">\u003Cspan class=\"n\">2\u003C\u002Fspan> Open the dialog\u003C\u002Fdiv>\n      \u003Cdiv class=\"demo-area\">\n        \u003Cdiv class=\"trigger-row\">\n          \u003Cbutton class=\"primary-btn\" id=\"openModal\">Open as modal (showModal)\u003C\u002Fbutton>\n          \u003Cbutton class=\"secondary-btn\" id=\"openNonModal\">Open non-modal (show)\u003C\u002Fbutton>\n        \u003C\u002Fdiv>\n        \u003Cp class=\"hint\">\n          \u003Cstrong>Modal\u003C\u002Fstrong> blocks the rest of the page — Tab stays inside, Escape closes it, the backdrop appears.\u003Cbr>\n          \u003Cstrong>Non-modal\u003C\u002Fstrong> is just visible — you can still click outside and Tab freely.\n        \u003C\u002Fp>\n      \u003C\u002Fdiv>\n    \u003C\u002Fdiv>\n\n    \u003Cdiv class=\"panel\">\n      \u003Cdiv class=\"panel-label\">\u003Cspan class=\"n\">3\u003C\u002Fspan> Close result\u003C\u002Fdiv>\n      \u003Cdiv class=\"result-row\">\n        \u003Cspan class=\"result-label\">returnValue →\u003C\u002Fspan>\n        \u003Cspan class=\"result-val\" id=\"returnValDisplay\">—\u003C\u002Fspan>\n      \u003C\u002Fdiv>\n      \u003Cdiv class=\"result-row\" style=\"margin-top:6px\">\n        \u003Cspan class=\"result-label\">closed via →\u003C\u002Fspan>\n        \u003Cspan class=\"result-val\" id=\"closeMethodDisplay\">—\u003C\u002Fspan>\n      \u003C\u002Fdiv>\n      \u003Cdiv class=\"event-log\" id=\"log\" aria-label=\"Event log\" aria-live=\"polite\">\n        \u003Cspan class=\"log-row\">\u003Cspan class=\"log-info log-msg\">Events will appear here as you interact with the dialog…\u003C\u002Fspan>\u003C\u002Fspan>\n      \u003C\u002Fdiv>\n    \u003C\u002Fdiv>\n  \u003C\u002Fdiv>\n\n  \u003C!-- The actual \u003Cdialog> element — no div wrapper, no aria-modal, no tabindex hack -->\n  \u003Cdialog id=\"demo\">\n    \u003Cdiv class=\"dialog-inner\">\n      \u003Ch2 class=\"dialog-title\">Are you sure?\u003C\u002Fh2>\n      \u003Cp class=\"dialog-body\">\n        This confirms a delete. Try closing with the buttons below,\n        pressing \u003Ckbd>Escape\u003C\u002Fkbd>, or clicking the backdrop.\n        Check what \u003Ccode>returnValue\u003C\u002Fcode> captures each way.\n      \u003C\u002Fp>\n      \u003Cdiv class=\"dialog-footer\">\n        \u003Cbutton class=\"secondary-btn\" id=\"cancelBtn\">Cancel\u003C\u002Fbutton>\n        \u003Cbutton class=\"primary-btn\" id=\"confirmBtn\">Confirm delete\u003C\u002Fbutton>\n      \u003C\u002Fdiv>\n    \u003C\u002Fdiv>\n  \u003C\u002Fdialog>","\u002F*\n * Shared playground design system — daily-post\n * ============================================\n * Link it from any post's playground\u002Findex.html (no per-post boilerplate):\n *\n *   \u003Clink rel=\"stylesheet\" href=\"..\u002F..\u002F..\u002Fplayground\u002Fassets\u002Fbase.css\" \u002F>\n *\n * The relative path resolves the same locally (posts\u002F\u003Cbase>\u002Fplayground\u002F) and on\n * the deployed host (public\u002Fposts\u002F\u003Cbase>\u002Fplayground\u002F), because build-site.js\n * mirrors this file to public\u002Fplayground\u002Fassets\u002Fbase.css. For a CodeSandbox\n * --embed, playground.js inlines this file so the single-file sandbox still styles.\n *\n * Then write ONLY the demo-specific CSS in your inline \u003Cstyle>. Everything below\n * — tokens, layout, panels, buttons, toggles, sliders, code blocks, status\u002Flog,\n * banners, presets — comes for free and looks consistent across every post.\n *\n * Theme-aware: dark by default, light via prefers-color-scheme AND a\n * [data-theme] override on \u003Chtml> (so a toggle can force either). Accessible:\n * real focus rings, adequate contrast, reduced-motion honored.\n *\u002F\n\n\u002F* ---------- design tokens ---------- *\u002F\n:root {\n  --bg: #0d1117;\n  --bg-grid: #ffffff0a;\n  --panel: #161b22;\n  --panel-2: #0b0e14;\n  --card: #0b0e14;\n  --ink: #e8ebf2;\n  --muted: #9aa4b2;\n  --faint: #6b7688;\n  --line: #232a35;\n  --line-soft: #ffffff12;\n  --accent: #7c9cff;\n  --accent-ink: #0b0e14;\n  --good: #3fb950;\n  --warn: #f0883e;\n  --bad: #f85149;\n  --info: #58a6ff;\n  --radius: 14px;\n  --radius-sm: 9px;\n  --shadow: 0 8px 30px #0006;\n  --shadow-sm: 0 4px 14px #0005;\n  --mono: ui-monospace, SFMono-Regular, \"SF Mono\", Menlo, Consolas, \"Liberation Mono\", monospace;\n  --sans: ui-sans-serif, system-ui, -apple-system, \"Segoe UI\", Roboto, \"Helvetica Neue\", sans-serif;\n  color-scheme: dark;\n}\n\n\u002F* Light theme — system preference, overridable by [data-theme] on \u003Chtml>. *\u002F\n@media (prefers-color-scheme: light) {\n  :root:not([data-theme=\"dark\"]) {\n    --bg: #f4f6fb;\n    --bg-grid: #00000008;\n    --panel: #ffffff;\n    --panel-2: #f0f3f9;\n    --card: #f7f9fc;\n    --ink: #131722;\n    --muted: #5b6472;\n    --faint: #8a93a3;\n    --line: #e2e7f0;\n    --line-soft: #00000010;\n    --accent: #2f6df0;\n    --accent-ink: #ffffff;\n    --good: #1a7f37;\n    --warn: #bc4c00;\n    --bad: #cf222e;\n    --info: #0969da;\n    --shadow: 0 8px 30px #0000001f;\n    --shadow-sm: 0 4px 14px #00000014;\n    color-scheme: light;\n  }\n}\n:root[data-theme=\"light\"] {\n  --bg: #f4f6fb;\n  --bg-grid: #00000008;\n  --panel: #ffffff;\n  --panel-2: #f0f3f9;\n  --card: #f7f9fc;\n  --ink: #131722;\n  --muted: #5b6472;\n  --faint: #8a93a3;\n  --line: #e2e7f0;\n  --line-soft: #00000010;\n  --accent: #2f6df0;\n  --accent-ink: #ffffff;\n  --good: #1a7f37;\n  --warn: #bc4c00;\n  --bad: #cf222e;\n  --info: #0969da;\n  --shadow: 0 8px 30px #0000001f;\n  --shadow-sm: 0 4px 14px #00000014;\n  color-scheme: light;\n}\n\n\u002F* ---------- reset & base ---------- *\u002F\n*, *::before, *::after { box-sizing: border-box; }\n\nbody {\n  margin: 0;\n  min-height: 100vh;\n  font-family: var(--sans);\n  color: var(--ink);\n  background:\n    radial-gradient(circle at 1px 1px, var(--bg-grid) 1px, transparent 0) 0 0 \u002F 24px 24px,\n    var(--bg);\n  display: flex;\n  justify-content: center;\n  align-items: flex-start;\n  padding: clamp(14px, 3vw, 26px);\n  line-height: 1.55;\n  -webkit-font-smoothing: antialiased;\n  text-rendering: optimizeLegibility;\n}\n\n\u002F* The single content column. *\u002F\n.pg {\n  width: 100%;\n  max-width: 860px;\n}\n\n\u002F* ---------- header ---------- *\u002F\n.pg-title {\n  font-size: clamp(1.15rem, 1rem + 1vw, 1.4rem);\n  font-weight: 800;\n  letter-spacing: -0.02em;\n  margin: 0 0 4px;\n  display: flex;\n  align-items: center;\n  gap: 9px;\n}\n.pg-sub {\n  color: var(--muted);\n  font-size: 0.92rem;\n  line-height: 1.5;\n  margin: 0 0 16px;\n  max-width: 66ch;\n}\n.pg-sub strong, .pg-sub b { color: var(--ink); font-weight: 700; }\n.pg-sub code { font-family: var(--mono); background: var(--line-soft); color: var(--accent);\n  padding: 1px 6px; border-radius: 6px; font-size: 0.85em; }\n\n\u002F* ---------- panels ---------- *\u002F\n.panel {\n  background: var(--panel);\n  border: 1px solid var(--line);\n  border-radius: var(--radius);\n  padding: 16px 18px;\n  margin-bottom: 14px;\n  box-shadow: var(--shadow-sm);\n}\n.panel-label {\n  font-size: 0.7rem;\n  text-transform: uppercase;\n  letter-spacing: 0.08em;\n  color: var(--muted);\n  font-weight: 800;\n  margin: 0 0 13px;\n  display: flex;\n  align-items: center;\n  gap: 8px;\n}\n.panel-label .n {\n  display: inline-grid; place-items: center;\n  width: 18px; height: 18px; border-radius: 50%;\n  background: var(--accent); color: var(--accent-ink);\n  font-size: 0.66rem; font-weight: 800;\n}\n\n\u002F* ---------- layout helpers ---------- *\u002F\n.row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }\n.row.between { justify-content: space-between; }\n.col { display: flex; flex-direction: column; gap: 10px; }\n.grow { flex: 1 1 0; min-width: 0; }\n.wrap-controls { display: flex; flex-wrap: wrap; gap: 16px 24px; align-items: flex-end; }\n.field { display: flex; flex-direction: column; gap: 7px; min-width: 0; }\n.field > .label, .ctl-label {\n  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.04em;\n  color: var(--muted); font-weight: 800;\n}\n\n\u002F* ---------- buttons ---------- *\u002F\n.btn {\n  font: inherit; font-weight: 650; font-size: 0.88rem;\n  cursor: pointer; user-select: none;\n  border: 1px solid var(--line);\n  background: var(--card); color: var(--ink);\n  padding: 9px 15px; border-radius: var(--radius-sm);\n  display: inline-flex; align-items: center; gap: 8px;\n  transition: background .15s ease, border-color .15s ease, transform .05s ease, color .15s ease;\n}\n.btn:hover { background: var(--line-soft); border-color: var(--muted); }\n.btn:active { transform: translateY(1px); }\n.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }\n.btn[disabled] { opacity: 0.45; cursor: not-allowed; }\n.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }\n.btn.primary:hover { filter: brightness(1.08); background: var(--accent); }\n.btn.good { background: var(--good); border-color: var(--good); color: #04140a; }\n.btn.bad  { background: var(--bad);  border-color: var(--bad);  color: #fff; }\n.btn.ghost { background: transparent; }\n.btn.sm { padding: 6px 11px; font-size: 0.82rem; }\n\n.btn-row { display: flex; flex-wrap: wrap; gap: 9px; }\n\n\u002F* Segmented control — a row of buttons where one is active (aria-pressed). *\u002F\n.seg { display: inline-flex; background: var(--card); border: 1px solid var(--line);\n  border-radius: var(--radius-sm); padding: 3px; gap: 3px; }\n.seg button {\n  font: inherit; font-weight: 650; font-size: 0.84rem; cursor: pointer;\n  border: none; background: transparent; color: var(--muted);\n  padding: 7px 13px; border-radius: 7px;\n  transition: background .15s ease, color .15s ease;\n}\n.seg button:hover { color: var(--ink); }\n.seg button[aria-pressed=\"true\"] { background: var(--accent); color: var(--accent-ink); }\n.seg button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }\n\n\u002F* Preset chips — worked-example shortcuts. *\u002F\n.presets { display: flex; flex-wrap: wrap; gap: 8px; }\n.presets .btn { background: var(--panel-2); }\n\n\u002F* ---------- toggle switch ---------- *\u002F\n.toggle { display: inline-flex; align-items: center; gap: 10px; cursor: pointer;\n  font-size: 0.88rem; font-weight: 600; user-select: none; }\n.toggle input { position: absolute; opacity: 0; width: 0; height: 0; }\n.switch { position: relative; width: 44px; height: 25px; border-radius: 999px; flex: none;\n  background: var(--line); border: 1px solid var(--line); transition: background .18s ease; }\n.switch::after { content: \"\"; position: absolute; top: 2px; left: 2px; width: 19px; height: 19px;\n  border-radius: 50%; background: #cfd6e4; transition: transform .18s ease; box-shadow: 0 1px 3px #0006; }\n.toggle input:checked + .switch { background: var(--good); border-color: var(--good); }\n.toggle input:checked + .switch::after { transform: translateX(19px); background: #fff; }\n.toggle input:focus-visible + .switch { outline: 2px solid var(--accent); outline-offset: 2px; }\n\n\u002F* ---------- range slider ---------- *\u002F\ninput[type=\"range\"] {\n  -webkit-appearance: none; appearance: none; width: 100%; height: 6px;\n  background: var(--line); border-radius: 999px; outline: none; cursor: pointer; margin: 8px 0;\n}\ninput[type=\"range\"]::-webkit-slider-thumb {\n  -webkit-appearance: none; appearance: none; width: 19px; height: 19px; border-radius: 50%;\n  background: var(--accent); border: 2px solid var(--panel); box-shadow: var(--shadow-sm); cursor: pointer;\n}\ninput[type=\"range\"]::-moz-range-thumb {\n  width: 19px; height: 19px; border-radius: 50%; background: var(--accent);\n  border: 2px solid var(--panel); box-shadow: var(--shadow-sm); cursor: pointer;\n}\ninput[type=\"range\"]:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }\n\n\u002F* ---------- text inputs \u002F selects ---------- *\u002F\ninput[type=\"text\"], input[type=\"number\"], input[type=\"search\"], select, textarea {\n  font: inherit; color: var(--ink); background: var(--card);\n  border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 8px 11px; width: 100%;\n}\ntextarea { font-family: var(--mono); font-size: 0.85rem; line-height: 1.6; resize: vertical; }\ninput:focus-visible, select:focus-visible, textarea:focus-visible {\n  outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent);\n}\n\n\u002F* ---------- status \u002F output \u002F log ---------- *\u002F\n.status {\n  display: flex; align-items: center; gap: 9px; flex-wrap: wrap;\n  font-size: 0.9rem; font-weight: 600;\n  padding: 11px 14px; border-radius: var(--radius-sm);\n  background: var(--panel-2); border: 1px solid var(--line); color: var(--ink);\n}\n.status.good { border-color: color-mix(in srgb, var(--good) 55%, var(--line)); }\n.status.warn { border-color: color-mix(in srgb, var(--warn) 55%, var(--line)); }\n.status.bad  { border-color: color-mix(in srgb, var(--bad) 55%, var(--line)); }\n.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--muted); flex: none; }\n.dot.good { background: var(--good); } .dot.warn { background: var(--warn); }\n.dot.bad { background: var(--bad); } .dot.info { background: var(--info); }\n\n.output { background: var(--panel-2); border: 1px solid var(--line); border-radius: var(--radius-sm);\n  padding: 13px 15px; }\n.log { font-family: var(--mono); font-size: 0.8rem; line-height: 1.7; background: var(--card);\n  border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 11px 14px;\n  max-height: 220px; overflow-y: auto; white-space: pre-wrap; }\n\n\u002F* ---------- code block + syntax tokens ---------- *\u002F\n.code {\n  font-family: var(--mono); font-size: 0.82rem; line-height: 1.7;\n  background: var(--panel-2); border: 1px solid var(--line); border-radius: var(--radius-sm);\n  padding: 13px 15px; overflow-x: auto; white-space: pre; tab-size: 2;\n}\n.code .tok-sel  { color: var(--accent); }\n.code .tok-prop { color: #86e29b; }\n.code .tok-kw   { color: #ff9bcb; }\n.code .tok-str  { color: #f0c674; }\n.code .tok-num  { color: #f0883e; }\n.code .tok-cmt  { color: var(--faint); font-style: italic; }\n.code .hl { background: color-mix(in srgb, var(--good) 22%, transparent); border-radius: 4px; padding: 0 3px; }\n\n\u002F* ---------- hint \u002F caption ---------- *\u002F\n.hint { font-size: 0.83rem; color: var(--muted); line-height: 1.55; margin: 10px 0 0; }\n.hint code { font-family: var(--mono); color: var(--ink); background: var(--line-soft);\n  padding: 1px 5px; border-radius: 5px; font-size: 0.86em; }\n.hint strong { color: var(--ink); }\n\n\u002F* ---------- banner (feature-support \u002F notices) ---------- *\u002F\n.banner {\n  display: none; margin-bottom: 14px; padding: 11px 14px; border-radius: 11px;\n  font-size: 0.85rem; line-height: 1.5;\n  color: var(--ink); background: color-mix(in srgb, var(--warn) 12%, var(--panel));\n  border: 1px solid color-mix(in srgb, var(--warn) 45%, var(--line));\n}\n.banner.show { display: block; }\n.banner.info { background: color-mix(in srgb, var(--info) 12%, var(--panel));\n  border-color: color-mix(in srgb, var(--info) 45%, var(--line)); }\n.banner code { font-family: var(--mono); background: var(--line-soft); padding: 1px 5px; border-radius: 5px; }\n\n\u002F* ---------- misc atoms ---------- *\u002F\n.pill { display: inline-flex; align-items: center; gap: 6px; font-size: 0.75rem; font-weight: 700;\n  padding: 3px 9px; border-radius: 999px; background: var(--line-soft); color: var(--muted); }\n.pill.good { color: var(--good); background: color-mix(in srgb, var(--good) 16%, transparent); }\n.pill.bad  { color: var(--bad);  background: color-mix(in srgb, var(--bad) 16%, transparent); }\n.mono { font-family: var(--mono); }\n.muted { color: var(--muted); }\n.big-num { font-family: var(--mono); font-size: 1.6rem; font-weight: 800; letter-spacing: -0.02em; }\n\n\u002F* Optional theme toggle button (top-right). Wire it in JS if you want it. *\u002F\n.theme-btn { position: fixed; top: 12px; right: 12px; z-index: 20; }\n\n\u002F* ---------- responsive ---------- *\u002F\n@media (max-width: 560px) {\n  .panel { padding: 14px; }\n  .wrap-controls { gap: 14px; }\n  .btn { padding: 9px 13px; }\n}\n\n\u002F* ---------- reduced motion ---------- *\u002F\n@media (prefers-reduced-motion: reduce) {\n  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }\n}\n\n\n.demo-area {\n    display: flex;\n    flex-direction: column;\n    gap: 10px;\n  }\n\n  .trigger-row {\n    display: flex;\n    gap: 10px;\n    flex-wrap: wrap;\n  }\n\n  .primary-btn {\n    padding: 10px 18px;\n    border-radius: var(--radius-sm);\n    border: 2px solid var(--accent);\n    background: var(--accent);\n    color: #fff;\n    font-size: .85rem;\n    font-weight: 700;\n    cursor: pointer;\n    transition: opacity .15s;\n  }\n  .primary-btn:hover { opacity: .85; }\n\n  .secondary-btn {\n    padding: 10px 18px;\n    border-radius: var(--radius-sm);\n    border: 2px solid var(--line);\n    background: var(--panel-2);\n    color: var(--fg);\n    font-size: .85rem;\n    font-weight: 600;\n    cursor: pointer;\n    transition: border-color .15s;\n  }\n  .secondary-btn:hover { border-color: var(--accent); }\n\n  .event-log {\n    font-family: var(--mono);\n    font-size: .78rem;\n    background: var(--panel-2);\n    border: 1px solid var(--line);\n    border-radius: var(--radius-sm);\n    padding: 10px 12px;\n    min-height: 80px;\n    max-height: 160px;\n    overflow-y: auto;\n    display: flex;\n    flex-direction: column;\n    gap: 3px;\n  }\n  .log-row { display: flex; gap: 8px; align-items: baseline; }\n  .log-time { color: var(--muted); flex-shrink: 0; font-size: .72rem; }\n  .log-msg { word-break: break-word; }\n  .log-ok { color: #46d18b; }\n  .log-close { color: #f5a623; }\n  .log-info { color: var(--muted); }\n\n  \u002F* The native dialog itself *\u002F\n  dialog#demo {\n    border: none;\n    border-radius: 12px;\n    padding: 0;\n    background: var(--bg);\n    color: var(--fg);\n    box-shadow: 0 24px 64px rgba(0,0,0,.35);\n    max-width: min(420px, 90vw);\n    width: 100%;\n  }\n\n  dialog#demo::backdrop {\n    background: rgb(0 0 0 \u002F var(--backdrop-opacity, 50%));\n    backdrop-filter: blur(var(--backdrop-blur, 0px));\n  }\n\n  .dialog-inner {\n    padding: 24px;\n    display: flex;\n    flex-direction: column;\n    gap: 16px;\n  }\n\n  .dialog-title {\n    font-size: 1.1rem;\n    font-weight: 700;\n    margin: 0;\n  }\n\n  .dialog-body {\n    font-size: .88rem;\n    color: var(--muted);\n    margin: 0;\n    line-height: 1.5;\n  }\n\n  .dialog-footer {\n    display: flex;\n    justify-content: flex-end;\n    gap: 10px;\n    flex-wrap: wrap;\n  }\n\n  .result-row {\n    display: flex;\n    align-items: baseline;\n    gap: 8px;\n    flex-wrap: wrap;\n    font-size: .82rem;\n  }\n  .result-label { color: var(--muted); font-family: var(--mono); white-space: nowrap; }\n  .result-val { font-family: var(--mono); font-weight: 700; }\n  .result-val.ok { color: #46d18b; }\n  .result-val.cancelled { color: #ff6b6b; }\n  .result-val.escape { color: #f5a623; }\n\n  .option-row {\n    display: flex;\n    align-items: center;\n    gap: 10px;\n    flex-wrap: wrap;\n    font-size: .82rem;\n  }\n  .option-row label { display: flex; align-items: center; gap: 6px; cursor: pointer; }\n\n  fieldset {\n    border: 1px solid var(--line);\n    border-radius: var(--radius-sm);\n    padding: 10px 12px;\n    display: flex;\n    flex-direction: column;\n    gap: 8px;\n  }\n  legend { font-size: .75rem; color: var(--muted); padding: 0 4px; font-family: var(--mono); }","\"use strict\";\nconst $ = id => document.getElementById(id);\n\nconst dialog = $(\"demo\");\nlet openedAs = \"modal\";\n\n\u002F\u002F Backdrop opacity + blur -> CSS custom properties on the dialog\nfunction updateBackdrop() {\n  const pct = $(\"backdropOpacity\").value;\n  const blur = $(\"backdropBlur\").checked;\n  $(\"opacityOut\").textContent = pct + \"%\";\n  dialog.style.setProperty(\"--backdrop-opacity\", pct + \"%\");\n  dialog.style.setProperty(\"--backdrop-blur\", blur ? \"6px\" : \"0px\");\n}\n$(\"backdropOpacity\").addEventListener(\"input\", updateBackdrop);\n$(\"backdropBlur\").addEventListener(\"change\", updateBackdrop);\nupdateBackdrop();\n\n\u002F\u002F Event log\nfunction log(msg, cls = \"log-info\") {\n  const row = document.createElement(\"div\");\n  row.className = \"log-row\";\n  const now = new Date().toLocaleTimeString(\"en\", { hour12: false, hour: \"2-digit\", minute: \"2-digit\", second: \"2-digit\" });\n  row.innerHTML = `\u003Cspan class=\"log-time\">${now}\u003C\u002Fspan>\u003Cspan class=\"${cls} log-msg\">${msg}\u003C\u002Fspan>`;\n  const el = $(\"log\");\n  el.appendChild(row);\n  el.scrollTop = el.scrollHeight;\n}\n\n\u002F\u002F Open\n$(\"openModal\").addEventListener(\"click\", () => {\n  openedAs = \"modal\";\n  dialog.showModal();\n  log(\"dialog.showModal() — focus trapped, Escape active\", \"log-ok\");\n});\n\n$(\"openNonModal\").addEventListener(\"click\", () => {\n  openedAs = \"non-modal\";\n  dialog.show();\n  log(\"dialog.show() — non-modal, page still interactive\", \"log-info\");\n});\n\n\u002F\u002F Close buttons\n$(\"confirmBtn\").addEventListener(\"click\", () => {\n  dialog.close(\"confirmed\");\n  log(\"dialog.close('confirmed') called via Confirm button\", \"log-ok\");\n});\n\n$(\"cancelBtn\").addEventListener(\"click\", () => {\n  dialog.close(\"cancelled\");\n  log(\"dialog.close('cancelled') called via Cancel button\", \"log-close\");\n});\n\n\u002F\u002F Backdrop click\ndialog.addEventListener(\"click\", (e) => {\n  if (!$(\"backdropClick\").checked) return;\n  const rect = dialog.getBoundingClientRect();\n  const outside =\n    e.clientX \u003C rect.left || e.clientX > rect.right ||\n    e.clientY \u003C rect.top  || e.clientY > rect.bottom;\n  if (outside) {\n    dialog.close(\"backdrop\");\n    log(\"Backdrop click detected — dialog.close('backdrop')\", \"log-close\");\n  }\n});\n\n\u002F\u002F close event fires for ALL close methods (button, Escape, backdrop click above)\ndialog.addEventListener(\"close\", () => {\n  const rv = dialog.returnValue || \"(empty — likely closed via Escape)\";\n  $(\"returnValDisplay\").textContent = dialog.returnValue || \"\\\"\\\"\";\n  $(\"returnValDisplay\").className = \"result-val \" +\n    (dialog.returnValue === \"confirmed\" ? \"ok\" :\n     dialog.returnValue === \"cancelled\" ? \"cancelled\" : \"escape\");\n\n  const method =\n    dialog.returnValue === \"confirmed\" ? \"Confirm button\" :\n    dialog.returnValue === \"cancelled\" ? \"Cancel button\" :\n    dialog.returnValue === \"backdrop\"  ? \"Backdrop click\" :\n    \"Escape key (returnValue stays empty)\";\n  $(\"closeMethodDisplay\").textContent = method;\n  $(\"closeMethodDisplay\").className = \"result-val \" +\n    (dialog.returnValue === \"confirmed\" ? \"ok\" :\n     dialog.returnValue === \"cancelled\" ? \"cancelled\" : \"escape\");\n\n  if (!dialog.returnValue) {\n    log(\"close event: returnValue is empty — Escape was pressed\", \"log-close\");\n  }\n});",{"height":40,"autorun":17},520,{"slug":33,"title":42,"excerpt":43,"coverUrl":44,"vertical":45},"You built your modal with a `\u003Cdiv>` and a focus trap library. The native `\u003Cdialog>` does all of that.","The `\u003Cdialog>` element ships with focus trapping, Escape-to-close, backdrop rendering, and correct ARIA semantics — no library, no boilerplate. It's been Baseline since 2022.","\u002Fmedia\u002Fcovers\u002Fdialog-element-native-modal.png",{"slug":6}]