/* Layout: slim bar with logo and back link, one readable column, sections as plain headings. */
:root{--bg:#eef1f7;--surface:#ffffff;--fg:#0e1330;--muted:#566086;--line:#d5dbea;--accent:#2e3fe0;--accent-fg:#ffffff;--accent-soft:#e1e5fc;
 --f-display:"Sora","Helvetica Neue",Arial,sans-serif;--f-body:"Figtree","Helvetica Neue",Arial,sans-serif}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0b0f24;--surface:#131937;--fg:#e8ebf8;--muted:#9aa3c7;--line:#252d57;--accent:#7d8bff;--accent-fg:#0b0f24;--accent-soft:#1d2552;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#0b0f24;--surface:#131937;--fg:#e8ebf8;--muted:#9aa3c7;--line:#252d57;--accent:#7d8bff;--accent-fg:#0b0f24;--accent-soft:#1d2552;color-scheme:dark}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.65 var(--f-body);padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
:root{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
.wrap{max-width:760px;margin:0 auto}
a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
header{border-bottom:1px solid var(--line)}
header .wrap{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-block:16px;flex-wrap:wrap}
.logo{display:inline-flex;align-items:center;gap:10px;font:700 26px/1 var(--f-display);text-decoration:none;letter-spacing:-.03em;direction:ltr}
.logo span{color:var(--accent)}
.logo svg{width:36px;height:36px}
.mk-bg{fill:var(--accent)}.mk-fg{fill:var(--accent-fg)}.mk-ring{fill:none;stroke:var(--accent-fg);stroke-width:3.2}
.back{text-decoration:none;color:var(--muted);font-weight:500}
.back:hover{color:var(--accent)}
main{padding-block:48px 56px}
h1{font:700 clamp(34px,6vw,52px)/1.1 var(--f-display);letter-spacing:-.02em;margin:0 0 28px;text-wrap:balance}
h2{font:600 20px/1.3 var(--f-display);margin:32px 0 6px}
p{margin:0;color:var(--muted);max-width:66ch}
footer{border-top:1px solid var(--line);padding-block:24px 40px;color:var(--muted);font-size:14px}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}