[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"verticals":3,"playground-css-color-mix-native-color-mixing":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":17,"paths":17,"articles":18,"exams":18,"flashcards":18,"packages":18,"community":17,"certificates":18,"teams":18,"commerce":17},2,{"slug":33,"title":34,"summary":35,"html":36,"css":37,"js":38,"config":39,"doc":41},"css-color-mix-native-color-mixing","color-mix() — native CSS color blending",null,"\u003Cdiv class=\"pg\">\n    \u003Ch1 class=\"pg-title\">🎨 color-mix() — blend colors in native CSS\u003C\u002Fh1>\n    \u003Cp class=\"pg-sub\">\n      \u003Ccode>color-mix()\u003C\u002Fcode> takes two colors, a ratio, and a color space, and hands\n      back the blend — no Sass, no build step. Drag the ratio, switch the space, and\n      watch the CSS and the \u003Cstrong>browser-resolved value\u003C\u002Fstrong> update live. Then\n      build a whole shade scale from one source color, the way the post does.\n    \u003C\u002Fp>\n\n    \u003Cdiv class=\"banner\" id=\"supportBanner\">\n      ⚠️ This browser doesn't support \u003Ccode>color-mix()\u003C\u002Fcode>, so the swatches below\n      fall back to a plain color. Try the latest Chrome, Firefox, or Safari (Baseline 2023).\n    \u003C\u002Fdiv>\n\n    \u003Cdiv class=\"panel\">\n      \u003Cdiv class=\"panel-label\">\u003Cspan class=\"n\">1\u003C\u002Fspan> Mix two colors\u003C\u002Fdiv>\n      \u003Cdiv class=\"mixrow\">\n        \u003Cdiv class=\"endcap\">\n          \u003Cinput id=\"colorA\" type=\"color\" value=\"#3b82f6\" aria-label=\"First color\" \u002F>\n          \u003Cspan class=\"cap\">color A\u003C\u002Fspan>\n        \u003C\u002Fdiv>\n        \u003Cdiv class=\"ratio\">\n          \u003Cinput id=\"ratio\" type=\"range\" min=\"0\" max=\"100\" step=\"1\" value=\"80\" aria-label=\"Percentage of color A\" \u002F>\n          \u003Cdiv>\u003Cspan class=\"pct\" id=\"ratioPct\">80%\u003C\u002Fspan> \u003Cspan class=\"muted\" id=\"ratioInv\">A · 20% B\u003C\u002Fspan>\u003C\u002Fdiv>\n        \u003C\u002Fdiv>\n        \u003Cdiv class=\"endcap\">\n          \u003Cinput id=\"colorB\" type=\"color\" value=\"#000000\" aria-label=\"Second color\" \u002F>\n          \u003Cspan class=\"cap\">color B\u003C\u002Fspan>\n        \u003C\u002Fdiv>\n      \u003C\u002Fdiv>\n\n      \u003Cdiv class=\"field\" style=\"margin-top:14px\">\n        \u003Cspan class=\"ctl-label\">Color space\u003C\u002Fspan>\n        \u003Cdiv class=\"seg\" id=\"spaceSeg\" role=\"group\" aria-label=\"Color space\">\n          \u003Cbutton data-space=\"srgb\" aria-pressed=\"true\">srgb\u003C\u002Fbutton>\n          \u003Cbutton data-space=\"hsl\" aria-pressed=\"false\">hsl\u003C\u002Fbutton>\n          \u003Cbutton data-space=\"oklch\" aria-pressed=\"false\">oklch\u003C\u002Fbutton>\n          \u003Cbutton data-space=\"oklab\" aria-pressed=\"false\">oklab\u003C\u002Fbutton>\n          \u003Cbutton data-space=\"lab\" aria-pressed=\"false\">lab\u003C\u002Fbutton>\n        \u003C\u002Fdiv>\n      \u003C\u002Fdiv>\n\n      \u003Cdiv class=\"swatch\" id=\"bigSwatch\" style=\"margin-top:14px\">\n        \u003Cspan class=\"tag\" id=\"bigResolved\">rgb(…)\u003C\u002Fspan>\n      \u003C\u002Fdiv>\n\n      \u003Cdiv class=\"code\" id=\"cssOut\" style=\"margin-top:12px\" aria-live=\"polite\">\u003C\u002Fdiv>\n\n      \u003Cdiv class=\"presets\" style=\"margin-top:12px\">\n        \u003Cbutton class=\"btn sm\" data-preset=\"darken\">🌚 Sass darken(15%)\u003C\u002Fbutton>\n        \u003Cbutton class=\"btn sm\" data-preset=\"lighten\">🌝 Sass lighten(15%)\u003C\u002Fbutton>\n        \u003Cbutton class=\"btn sm\" data-preset=\"tint\">💧 Brand + white\u003C\u002Fbutton>\n        \u003Cbutton class=\"btn sm\" data-preset=\"mix\">🔀 Two brand colors\u003C\u002Fbutton>\n      \u003C\u002Fdiv>\n      \u003Cp class=\"hint\" id=\"mixHint\" style=\"margin-top:12px\">\u003C\u002Fp>\n    \u003C\u002Fdiv>\n\n    \u003Cdiv class=\"panel\">\n      \u003Cdiv class=\"panel-label\">\u003Cspan class=\"n\">2\u003C\u002Fspan> Why the color space matters\u003C\u002Fdiv>\n      \u003Cp class=\"hint\" style=\"margin-top:0\">\n        Here is the \u003Cem>same\u003C\u002Fem> 50\u002F50 mix of your two colors, computed in every space\n        at once. In \u003Ccode>srgb\u003C\u002Fcode> the channels just average — mixing complementary\n        colors muddies toward gray. \u003Ccode>oklch\u003C\u002Fcode>\u002F\u003Ccode>oklab\u003C\u002Fcode> travel through a\n        perceptually uniform space, so the midpoint stays vivid. Click a tile to load it above.\n      \u003C\u002Fp>\n      \u003Cdiv class=\"btn-row\" style=\"margin:2px 0 12px\">\n        \u003Cbutton class=\"btn ghost sm\" id=\"complementBtn\">Try blue + yellow (the classic)\u003C\u002Fbutton>\n      \u003C\u002Fdiv>\n      \u003Cdiv class=\"spaces\" id=\"spaceGrid\">\u003C\u002Fdiv>\n    \u003C\u002Fdiv>\n\n    \u003Cdiv class=\"panel\">\n      \u003Cdiv class=\"panel-label\">\u003Cspan class=\"n\">3\u003C\u002Fspan> One source color → a whole scale\u003C\u002Fdiv>\n      \u003Cp class=\"hint\" style=\"margin-top:0\">\n        This is the Sass-replacement pattern. Pick a brand color; every step below is\n        \u003Ccode>color-mix(in oklch, brand X%, white|black)\u003C\u002Fcode> — derived in CSS, no\n        preprocessor. Change the source and the entire scale re-derives instantly.\n      \u003C\u002Fp>\n      \u003Cdiv class=\"row\" style=\"gap:10px; margin:4px 0 14px\">\n        \u003Cdiv class=\"endcap\" style=\"flex-direction:row; gap:10px\">\n          \u003Cinput id=\"brand\" type=\"color\" value=\"#3b82f6\" aria-label=\"Brand source color\" \u002F>\n          \u003Cspan class=\"ctl-label\">--brand\u003C\u002Fspan>\n        \u003C\u002Fdiv>\n        \u003Cbutton class=\"btn ghost sm\" id=\"brandRandom\" style=\"margin-left:auto\">🎲 Surprise me\u003C\u002Fbutton>\n      \u003C\u002Fdiv>\n      \u003Cdiv class=\"scale\" id=\"scaleGrid\">\u003C\u002Fdiv>\n    \u003C\u002Fdiv>\n\n    \u003Cdiv class=\"panel\">\n      \u003Cdiv class=\"panel-label\">\u003Cspan class=\"n\">4\u003C\u002Fspan> Delete the preprocessor\u003C\u002Fdiv>\n      \u003Cdiv class=\"code\" id=\"sassOut\" aria-hidden=\"true\">\u003C\u002Fdiv>\n      \u003Cp class=\"hint\">Baseline 2023 — Chrome 111, Firefox 113, Safari 16.2. Unsupported browsers just\n        ignore the declaration, so a pre-computed fallback value stays visible.\u003C\u002Fp>\n    \u003C\u002Fdiv>\n  \u003C\u002Fdiv>","\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\u002F* Demo-specific CSS ONLY. base.css already provides tokens, layout, panels,\n     buttons, segmented control, sliders, code blocks, status, pills, etc. *\u002F\n\n  \u002F* A single big blended swatch — the star of panel 1. *\u002F\n  .swatch { height: 116px; border-radius: var(--radius-sm); border: 1px solid var(--line);\n    display: flex; align-items: flex-end; justify-content: space-between; gap: 10px;\n    padding: 10px 12px; }\n  .swatch .tag { font-family: var(--mono); font-size: 0.72rem; font-weight: 800;\n    background: #0009; color: #fff; padding: 3px 7px; border-radius: 6px; }\n\n  \u002F* Endpoint color pickers sit either side of the ratio slider. *\u002F\n  .mixrow { display: grid; grid-template-columns: auto 1fr auto; gap: 14px; align-items: center; }\n  .endcap { display: flex; flex-direction: column; align-items: center; gap: 6px; }\n  .endcap input[type=color] { width: 46px; height: 46px; padding: 0; border-radius: 10px;\n    border: 1px solid var(--line); background: none; cursor: pointer; }\n  .endcap .cap { font-size: 0.66rem; text-transform: uppercase; letter-spacing: .05em;\n    font-weight: 800; color: var(--muted); }\n  .ratio { text-align: center; }\n  .ratio .pct { font-family: var(--mono); font-weight: 800; color: var(--accent); font-size: 1.05rem; }\n\n  \u002F* The color-space comparison grid: one tile per space, same inputs. *\u002F\n  .spaces { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 10px; }\n  .stile { border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden;\n    background: var(--panel-2); }\n  .stile .chip { height: 58px; }\n  .stile .lab { padding: 7px 9px; font-family: var(--mono); font-size: 0.72rem; font-weight: 800; }\n  .stile .val { padding: 0 9px 8px; font-family: var(--mono); font-size: 0.64rem; color: var(--muted);\n    white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }\n  .stile.pick { outline: 2px solid var(--accent); outline-offset: -2px; }\n\n  \u002F* The derived brand scale: 50 → 900 swatches. *\u002F\n  .scale { display: grid; grid-template-columns: repeat(auto-fit, minmax(74px, 1fr)); gap: 6px; }\n  .step { border-radius: 7px; overflow: hidden; border: 1px solid var(--line); }\n  .step .sw { height: 46px; }\n  .step .k { font-family: var(--mono); font-size: 0.62rem; font-weight: 800; text-align: center;\n    padding: 4px 0; background: var(--card); color: var(--muted); }\n  .step.src .k { background: var(--accent); color: var(--accent-ink); }","\"use strict\";\nconst $ = (id) => document.getElementById(id);\n\nconst SUPPORTS = window.CSS && CSS.supports && CSS.supports(\"color\", \"color-mix(in srgb, red, blue)\");\n\n\u002F\u002F A hidden probe element: set a color-mix() string on it, read back what the\n\u002F\u002F browser actually resolved. This makes every swatch a MEASUREMENT, not a claim.\nconst probe = document.createElement(\"span\");\nprobe.style.display = \"none\";\ndocument.body.appendChild(probe);\nfunction resolve(cssColor) {\n  probe.style.color = \"\";\n  probe.style.color = cssColor;\n  const v = getComputedStyle(probe).color;\n  return v || cssColor;\n}\n\nconst state = { a: \"#3b82f6\", b: \"#000000\", ratio: 80, space: \"srgb\" };\nconst SPACES = [\"srgb\", \"hsl\", \"oklch\", \"oklab\", \"lab\"];\n\nfunction mixStr(a, b, pct, space) {\n  return `color-mix(in ${space}, ${a} ${pct}%, ${b})`;\n}\n\n\u002F\u002F ---- Panel 1: the big blended swatch + CSS + resolved value ----\nfunction renderMix() {\n  const { a, b, ratio, space } = state;\n  const css = mixStr(a, b, ratio, space);\n  const sw = $(\"bigSwatch\");\n  sw.style.background = SUPPORTS ? css : a;\n  $(\"bigResolved\").textContent = SUPPORTS ? resolve(css) : a + \" (no color-mix)\";\n\n  $(\"ratioPct\").textContent = ratio + \"%\";\n  $(\"ratioInv\").textContent = `A · ${100 - ratio}% B`;\n\n  $(\"cssOut\").innerHTML =\n    '\u003Cspan class=\"tok-prop\">background\u003C\u002Fspan>: ' +\n    '\u003Cspan class=\"tok-kw\">color-mix\u003C\u002Fspan>(\u003Cspan class=\"tok-str\">in ' + space + '\u003C\u002Fspan>, ' +\n    '\u003Cspan class=\"tok-num\">' + a + '\u003C\u002Fspan> \u003Cspan class=\"tok-num\">' + ratio + '%\u003C\u002Fspan>, ' +\n    '\u003Cspan class=\"tok-num\">' + b + '\u003C\u002Fspan>);';\n\n  const hints = {\n    tooEqual: \"Complementary colors mixed near 50\u002F50 in \u003Ccode>srgb\u003C\u002Fcode> drift toward gray — flip to \u003Ccode>oklch\u003C\u002Fcode> and watch the same mix stay saturated.\",\n  };\n  $(\"mixHint\").innerHTML =\n    space === \"srgb\"\n      ? \"You're mixing in \u003Ccode>srgb\u003C\u002Fcode> — predictable, and what Sass historically produced. Switch to \u003Ccode>oklch\u003C\u002Fcode> to compare.\"\n      : \"You're mixing in \u003Ccode>\" + space + \"\u003C\u002Fcode> — a perceptual space. Tints and shades keep more of the original color's punch than \u003Ccode>srgb\u003C\u002Fcode>.\";\n}\n\n\u002F\u002F ---- Panel 2: same 50\u002F50 mix across every space ----\nfunction renderSpaces() {\n  const { a, b, space } = state;\n  const grid = $(\"spaceGrid\");\n  grid.innerHTML = \"\";\n  SPACES.forEach((sp) => {\n    const css = mixStr(a, b, 50, sp);\n    const tile = document.createElement(\"div\");\n    tile.className = \"stile\" + (sp === space ? \" pick\" : \"\");\n    tile.setAttribute(\"role\", \"button\");\n    tile.tabIndex = 0;\n    tile.innerHTML =\n      '\u003Cdiv class=\"chip\" style=\"background:' + (SUPPORTS ? css : a) + '\">\u003C\u002Fdiv>' +\n      '\u003Cdiv class=\"lab\">in ' + sp + '\u003C\u002Fdiv>' +\n      '\u003Cdiv class=\"val\">' + (SUPPORTS ? resolve(css) : \"—\") + '\u003C\u002Fdiv>';\n    const load = () => { setSpace(sp); };\n    tile.addEventListener(\"click\", load);\n    tile.addEventListener(\"keydown\", (e) => { if (e.key === \"Enter\" || e.key === \" \") { e.preventDefault(); load(); } });\n    grid.appendChild(tile);\n  });\n}\n\n\u002F\u002F ---- Panel 3: derive a 50–900 scale from one source ----\nconst SCALE = [\n  [\"50\", 10, \"white\"], [\"100\", 20, \"white\"], [\"200\", 35, \"white\"], [\"300\", 55, \"white\"],\n  [\"400\", 75, \"white\"], [\"500\", 100, \"white\"], [\"600\", 85, \"black\"], [\"700\", 70, \"black\"],\n  [\"800\", 55, \"black\"], [\"900\", 35, \"black\"],\n];\nfunction renderScale() {\n  const brand = $(\"brand\").value;\n  const grid = $(\"scaleGrid\");\n  grid.innerHTML = \"\";\n  SCALE.forEach(([k, pct, mixWith]) => {\n    const css = k === \"500\" ? brand : mixStr(brand, mixWith, pct, \"oklch\");\n    const step = document.createElement(\"div\");\n    step.className = \"step\" + (k === \"500\" ? \" src\" : \"\");\n    step.innerHTML =\n      '\u003Cdiv class=\"sw\" style=\"background:' + (SUPPORTS ? css : brand) + '\">\u003C\u002Fdiv>' +\n      '\u003Cdiv class=\"k\">' + k + '\u003C\u002Fdiv>';\n    step.title = k === \"500\" ? \"--brand (source)\" : css;\n    grid.appendChild(step);\n  });\n}\n\n\u002F\u002F ---- Panel 4: the Sass → color-mix cheat sheet, live with the brand color ----\nfunction renderSass() {\n  const brand = $(\"brand\").value;\n  $(\"sassOut\").innerHTML =\n    '\u003Cspan class=\"tok-cmt\">\u002F* Sass: darken(' + brand + ', 15%) *\u002F\u003C\u002Fspan>\\n' +\n    '\u003Cspan class=\"tok-kw\">color-mix\u003C\u002Fspan>(\u003Cspan class=\"tok-str\">in srgb\u003C\u002Fspan>, ' + brand + ' \u003Cspan class=\"tok-num\">85%\u003C\u002Fspan>, black)\\n\\n' +\n    '\u003Cspan class=\"tok-cmt\">\u002F* Sass: lighten(' + brand + ', 15%) *\u002F\u003C\u002Fspan>\\n' +\n    '\u003Cspan class=\"tok-kw\">color-mix\u003C\u002Fspan>(\u003Cspan class=\"tok-str\">in srgb\u003C\u002Fspan>, ' + brand + ' \u003Cspan class=\"tok-num\">85%\u003C\u002Fspan>, white)\\n\\n' +\n    '\u003Cspan class=\"tok-cmt\">\u002F* Sass: mix($a, $b, 60%) *\u002F\u003C\u002Fspan>\\n' +\n    '\u003Cspan class=\"tok-kw\">color-mix\u003C\u002Fspan>(\u003Cspan class=\"tok-str\">in srgb\u003C\u002Fspan>, $a \u003Cspan class=\"tok-num\">60%\u003C\u002Fspan>, $b)';\n}\n\nfunction setSpace(sp) {\n  state.space = sp;\n  [...$(\"spaceSeg\").children].forEach((btn) =>\n    btn.setAttribute(\"aria-pressed\", String(btn.dataset.space === sp)));\n  renderMix();\n  renderSpaces();\n}\n\nfunction syncFromInputs() {\n  state.a = $(\"colorA\").value;\n  state.b = $(\"colorB\").value;\n  state.ratio = Number($(\"ratio\").value);\n  renderMix();\n  renderSpaces();\n}\n\n\u002F\u002F Presets — each is a worked example of one Sass replacement.\nconst PRESETS = {\n  darken:  { a: \"#3b82f6\", b: \"#000000\", ratio: 85, space: \"srgb\" },\n  lighten: { a: \"#3b82f6\", b: \"#ffffff\", ratio: 85, space: \"srgb\" },\n  tint:    { a: \"#7c3aed\", b: \"#ffffff\", ratio: 30, space: \"oklch\" },\n  mix:     { a: \"#06b6d4\", b: \"#f43f5e\", ratio: 50, space: \"oklch\" },\n};\nfunction applyPreset(name) {\n  const p = PRESETS[name];\n  $(\"colorA\").value = p.a; $(\"colorB\").value = p.b; $(\"ratio\").value = String(p.ratio);\n  state.a = p.a; state.b = p.b; state.ratio = p.ratio;\n  setSpace(p.space);\n}\n\n\u002F\u002F A tiny deterministic palette for \"surprise me\" (no Math.random dependency need).\nconst BRANDS = [\"#3b82f6\", \"#7c3aed\", \"#059669\", \"#e11d48\", \"#d97706\", \"#0891b2\", \"#c026d3\", \"#4f46e5\"];\nlet brandIdx = 0;\n\n\u002F\u002F Wire up.\n$(\"colorA\").addEventListener(\"input\", syncFromInputs);\n$(\"colorB\").addEventListener(\"input\", syncFromInputs);\n$(\"ratio\").addEventListener(\"input\", syncFromInputs);\n[...$(\"spaceSeg\").children].forEach((btn) =>\n  btn.addEventListener(\"click\", () => setSpace(btn.dataset.space)));\ndocument.querySelectorAll(\"[data-preset]\").forEach((btn) =>\n  btn.addEventListener(\"click\", () => applyPreset(btn.dataset.preset)));\n$(\"complementBtn\").addEventListener(\"click\", () => {\n  $(\"colorA\").value = \"#0000ff\"; $(\"colorB\").value = \"#ffff00\"; $(\"ratio\").value = \"50\";\n  syncFromInputs();\n});\n$(\"brand\").addEventListener(\"input\", () => { renderScale(); renderSass(); });\n$(\"brandRandom\").addEventListener(\"click\", () => {\n  brandIdx = (brandIdx + 1) % BRANDS.length;\n  $(\"brand\").value = BRANDS[brandIdx];\n  renderScale(); renderSass();\n});\n\nif (!SUPPORTS) $(\"supportBanner\").classList.add(\"show\");\n\nrenderMix();\nrenderSpaces();\nrenderScale();\nrenderSass();",{"height":40,"autorun":17},520,{"slug":33,"title":42,"excerpt":43,"coverUrl":44},"You reach for Sass to mix colors. `color-mix()` does it natively.","Sass's `darken()`, `lighten()`, and `mix()` functions solved real problems CSS couldn't handle for decades. `color-mix()` is the native answer, and it ships in every modern browser with no build step required.","\u002Fmedia\u002Fcovers\u002Fcss-color-mix-native-color-mixing.png"]