/* Humane Dev Rules site. Red-led report design: ink cover, white pages, red pills, blush boxes. */
@font-face{font-family:"Archivo";font-weight:900;font-style:normal;font-display:swap;src:url(fonts/archivo-latin-900-normal.woff2) format("woff2")}
@font-face{font-family:"Inter";font-weight:400;font-style:normal;font-display:swap;src:url(fonts/inter-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"Inter";font-weight:500;font-style:normal;font-display:swap;src:url(fonts/inter-latin-500-normal.woff2) format("woff2")}
@font-face{font-family:"Inter";font-weight:700;font-style:normal;font-display:swap;src:url(fonts/inter-latin-700-normal.woff2) format("woff2")}

:root{
  --bg:#FFFFFF; --text:#3F413F; --head:#0E0F0C; --muted:#5F615F;
  --fog:#F3F0ED; --blush:#FBE3E0; --red:#E2262D; --on-red:#FFFFFF; --red-text:#C41E25;
  --ink:#15110F; --line:rgba(21,17,15,.14); --tip-bg:#15110F; --tip-edge:transparent;
  --cover-bg:#15110F; --cover-fg:#FFFFFF; --cover-lead:#ECE8E4; --cover-edge:transparent;
  --font-display:"Archivo","Arial Black",system-ui,sans-serif;
  --font-sans:"Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#15110F; --text:#D9D4CE; --head:#FFFFFF; --muted:#B7B0A8;
  --fog:#241E1B; --blush:#3D1E21; --red-text:#FF8A91; --line:rgba(250,247,244,.16); --tip-bg:#2E2622; --tip-edge:rgba(250,247,244,.2);
  --cover-bg:#0C0A09; --cover-edge:rgba(250,247,244,.16); color-scheme:dark;
}}
:root[data-theme="dark"]{
  --bg:#15110F; --text:#D9D4CE; --head:#FFFFFF; --muted:#B7B0A8;
  --fog:#241E1B; --blush:#3D1E21; --red-text:#FF8A91; --line:rgba(250,247,244,.16); --tip-bg:#2E2622; --tip-edge:rgba(250,247,244,.2);
  --cover-bg:#0C0A09; --cover-edge:rgba(250,247,244,.16); color-scheme:dark;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html,body{margin:0}
body{background:var(--bg);color:var(--text);font-family:var(--font-sans);font-size:18px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word}
a{color:var(--head);text-decoration:underline;text-decoration-color:var(--red);text-underline-offset:3px;text-decoration-thickness:2px}
a:hover{color:var(--red-text)}
a:focus-visible,input:focus-visible{outline:3px solid var(--red);outline-offset:2px;border-radius:3px}

.skip{position:absolute;left:16px;top:-60px;background:var(--red);color:var(--on-red);padding:10px 16px;border-radius:9999px;font-weight:700;z-index:10;text-decoration:none}
.skip:focus{top:12px;color:var(--on-red)}

/* Cover */
.cover{background:var(--cover-bg);color:var(--cover-fg);border-bottom:1px solid var(--cover-edge)}
.cover .inner{max-width:1100px;margin:0 auto;padding:24px max(16px,env(safe-area-inset-right,0px)) 0 max(16px,env(safe-area-inset-left,0px))}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px 24px;flex-wrap:wrap}
.wordmark{font-family:var(--font-display);font-weight:900;font-size:20px;line-height:1;letter-spacing:-.02em;text-transform:uppercase;color:var(--red);text-decoration:none}
.wordmark:hover{color:var(--red)}
.cover nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:4px 6px}
.cover nav a{display:inline-block;color:var(--cover-lead);text-decoration:none;font-size:15px;font-weight:500;padding:6px 12px;border-radius:9999px}
.cover nav a:hover{background:rgba(255,255,255,.08);color:var(--cover-fg)}
.cover nav a[aria-current="page"]{background:var(--red);color:var(--on-red)}
.kicker{margin:64px 0 0;font-size:14px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--cover-lead)}
.cover h1{font-family:var(--font-display);font-weight:900;text-transform:uppercase;font-size:clamp(40px,8.5vw,84px);line-height:.9;letter-spacing:-.03em;margin:14px 0 0;max-width:14ch;text-wrap:balance}
.lead{margin:22px 0 0;max-width:640px;font-size:19px;line-height:1.5;color:var(--cover-lead)}
.slit{height:3px;background:var(--red);margin-top:56px}

/* Page */
.wrap{max-width:760px;margin:0 auto;padding:40px max(16px,env(safe-area-inset-right,0px)) 72px max(16px,env(safe-area-inset-left,0px))}
.pill{display:inline-block;background:var(--red);color:var(--on-red);font-weight:700;font-size:14px;line-height:1;padding:7px 12px;border-radius:9999px;font-variant-numeric:tabular-nums;margin-top:56px}
.wrap>.pill:first-child,.wrap>.bar:first-child{margin-top:8px}
.bar{display:block;width:40px;height:4px;background:var(--red);border-radius:2px;margin-top:56px}
h2{font-weight:700;font-size:clamp(26px,5vw,34px);line-height:1.2;letter-spacing:-.01em;color:var(--head);margin:14px 0 14px;text-wrap:balance}
h3{font-weight:700;font-size:clamp(20px,3.4vw,23px);line-height:1.3;color:var(--head);margin:32px 0 8px}
p{margin:0 0 14px}
ul,ol{margin:0 0 18px;padding-left:24px}
li{margin:0 0 8px}
li::marker{color:var(--red-text);font-weight:700}
strong{color:var(--head);font-weight:700}
em{font-style:italic}

/* Key-point boxes */
blockquote{margin:20px 0;background:var(--blush);border-radius:10px;padding:16px 20px;color:var(--head)}
blockquote p:last-child{margin:0}

/* Code */
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88em;background:var(--fog);padding:2px 6px;border-radius:5px}
pre{background:var(--fog);border-radius:10px;padding:16px 18px;overflow-x:auto;margin:0 0 18px;line-height:1.5}
pre code{background:none;padding:0;font-size:15px}

/* Tables */
.tbl{overflow-x:auto;margin:8px 0 22px;border:1px solid var(--line);border-radius:10px}
table{border-collapse:collapse;width:100%;font-size:16px}
th,td{text-align:left;vertical-align:top;padding:10px 14px;border-bottom:1px solid var(--line)}
th{background:var(--fog);color:var(--head);font-weight:700}
tr:last-child td{border-bottom:0}
td:first-child{font-variant-numeric:tabular-nums}

/* Rules */
ol.rules{list-style:none;padding:0;margin:0 0 8px}
ol.rules li{display:grid;grid-template-columns:52px 1fr;gap:12px;padding:14px 0;border-bottom:1px solid var(--line);margin:0}
ol.rules li:last-child{border-bottom:0}
.rn{font-family:var(--font-display);font-weight:900;font-size:22px;line-height:1.2;color:var(--red-text)}
.tag{display:inline-block;font-size:13px;font-weight:700;line-height:1;padding:5px 10px;border-radius:9999px;margin-right:6px;vertical-align:2px;white-space:nowrap}
.t-always{background:var(--red);color:var(--on-red)}
.t-onlyif{background:transparent;color:var(--head);box-shadow:inset 0 0 0 1.5px var(--red)}
.intro{color:var(--muted);margin-bottom:6px}

/* Checklist */
ul.check{list-style:none;padding:0}
ul.check li{margin:0;border-bottom:1px solid var(--line)}
ul.check label{display:flex;gap:12px;align-items:flex-start;padding:10px 0;cursor:pointer}
ul.check input{width:20px;height:20px;margin:3px 0 0;flex:none;accent-color:var(--red)}

/* Glossary */
.wrap>p>strong:first-child{color:var(--red-text)}

/* Footer */
.foot{background:var(--cover-bg);color:var(--cover-lead);font-size:15px}
.foot .inner{max-width:1100px;margin:0 auto;padding:32px max(16px,env(safe-area-inset-right,0px)) 40px max(16px,env(safe-area-inset-left,0px))}
.foot a{color:var(--cover-fg)}
.foot p{margin:0 0 8px}
.foot .wordmark{font-size:16px;display:inline-block;margin-bottom:12px}

@media (max-width:520px){
  body{font-size:17px}
  .kicker{margin-top:44px}
  .slit{margin-top:40px}
  ol.rules li{grid-template-columns:40px 1fr;gap:8px}
  .rn{font-size:19px}
  th,td{padding:8px 10px}
}
@media print{
  .cover nav,.skip{display:none}
  .cover,.foot{background:#fff;color:#000}
}

/* Screen-reader-only text */
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* Rule numbers with a popup that shows the rule */
.wrap p,.wrap li,.wrap td{position:relative}
.ref a{font-weight:700;color:var(--red-text);text-decoration-style:dotted;text-decoration-thickness:2px}
.ref .tip{display:none;position:absolute;left:0;right:auto;width:max-content;max-width:100%;bottom:100%;z-index:5;background:var(--tip-bg);color:#FFFFFF;border:1px solid var(--tip-edge);font-size:15px;font-weight:400;line-height:1.45;padding:10px 14px;border-radius:10px;box-shadow:0 6px 20px rgba(0,0,0,.25);text-align:left}
.ref .tip b{color:#FF8A91;font-weight:700}
.ref:hover .tip,.ref:focus-within .tip{display:block}
.tips-off .ref .tip{display:none}
ol.rules li{scroll-margin-top:16px}
ol.rules li:target{background:var(--blush);border-radius:10px;padding-left:10px;padding-right:10px}

/* Copy button */
.codewrap{position:relative}
.copy{position:absolute;top:10px;right:10px;font:700 14px/1 var(--font-sans);background:var(--red);color:var(--on-red);border:0;border-radius:9999px;padding:8px 14px;cursor:pointer}
.copy:hover{background:#C41E25}
.copy:focus-visible{outline:3px solid var(--head);outline-offset:2px}
.codewrap pre{padding-top:48px}