:root { --petrol:#00222F; --cream:#FFFCE3; --yellow:#FCF072; --muted:#5A6B73; --line:#EDE7C8; --muted-on-dark:#A9C0C9; }
* { box-sizing: border-box; }
body { margin: 0; font-family: 'Mulish', system-ui, sans-serif; color: var(--petrol); background: var(--cream); line-height: 1.65; overflow-x: hidden; }
a { color: inherit; text-underline-offset: 3px; }
:focus-visible { outline: 3px solid var(--petrol); outline-offset: 3px; border-radius: 6px; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 90; background: var(--yellow); color: var(--petrol); font-weight: 800; padding: 10px 16px; border-radius: 999px; text-decoration: none; }
.skip:focus { top: 12px; }
.top { background: var(--petrol); color: var(--cream); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 16px; padding-bottom: 16px; }
.lockup { display: flex; align-items: center; gap: 22px; }
.lockup .hp { height: 30px; } .lockup .pd { height: 26px; opacity: .9; } .lockup .ts { height: 19px; opacity: .9; }
.lockup a, .top a, .b3 .logo a { display: inline-flex; align-items: center; min-height: 44px; }
.back { font-weight: 800; font-size: 14px; text-decoration: none; padding: 8px 14px; border-radius: 999px; border: 1.5px solid rgba(255,252,227,.35); white-space: nowrap; }
.back:hover { background: rgba(255,252,227,.08); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
main .wrap { max-width: 760px; padding-top: 48px; padding-bottom: 72px; }
h1 { font-weight: 900; letter-spacing: -1.5px; line-height: 1.05; font-size: clamp(36px, 6vw, 52px); margin: 0 0 8px; }
.updated { color: var(--muted); margin: 0 0 32px; font-weight: 700; }
h2 { font-weight: 900; letter-spacing: -.5px; font-size: 24px; line-height: 1.2; margin: 40px 0 10px; scroll-margin-top: 16px; }
h3 { font-weight: 800; font-size: 18px; margin: 24px 0 6px; }
p, li { max-width: 68ch; }
ul, ol { padding-left: 22px; }
li + li { margin-top: 6px; }
.intro { font-size: 18px; }
.box { background: #fff; border: 2px solid var(--petrol); border-radius: 20px; padding: 18px 22px; margin: 20px 0; }
.box p { margin: 0; }
.table-wrap { overflow-x: auto; margin: 16px 0; border: 2px solid var(--petrol); border-radius: 16px; background: #fff; }
table { border-collapse: collapse; width: 100%; min-width: 520px; font-size: 15px; }
th, td { text-align: left; vertical-align: top; padding: 12px 14px; border-bottom: 1.5px solid var(--line); }
th { background: var(--petrol); color: var(--cream); font-weight: 800; }
tr:last-child td { border-bottom: 0; }
code { font-size: 14px; background: #fff; padding: 1px 6px; border-radius: 6px; border: 1px solid var(--line); }
.ph { background: #FDF5A0; padding: 0 4px; border-radius: 4px; outline: 1px dashed rgba(0,34,47,.3); }
.toc { background: #fff; border-radius: 20px; padding: 16px 22px; border: 1.5px solid var(--line); }
.toc ol { margin: 6px 0 0; }
footer { background: var(--petrol); color: var(--muted-on-dark); font-size: 13px; }
footer .wrap { padding-top: 28px; padding-bottom: 36px; display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; }
footer a { color: var(--cream); }
footer nav { display: flex; flex-wrap: wrap; gap: 4px 18px; }
footer nav a { min-height: 44px; display: inline-flex; align-items: center; }
@media (max-width: 560px) { .lockup { gap: 10px; } .lockup .hp { height: 22px; } .lockup .pd { height: 20px; } .lockup .ts { height: 14px; } .back { font-size: 12px; padding: 6px 10px; } }