/* tugport.com/docs: the landing page's tokens, navigation and footer, plus styles for the guides. */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0A0E14;
  --surface: #10161F;
  --line: #1C2533;
  --line-strong: #2A3546;
  --text: #E8EDF3;
  --dim: #A0ABBA;
  --muted: #7A8698;
  --accent: #FF6A3D;
  --accent-text: #FF8A63;
  --code-bg: #121923;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #F7F6F2;
    --surface: #FFFFFF;
    --line: #E6E1D8;
    --line-strong: #D4CDC1;
    --text: #141B26;
    --dim: #4A5567;
    --muted: #5F6979;
    --accent-text: #B8401C;
    --code-bg: #EFECE6;
    color-scheme: light;
  }
}

html { scroll-padding-top: 80px; }
body {
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.65 Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
code, pre { font-family: "JetBrains Mono", ui-monospace, monospace; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
h1, h2, h3 { font-family: "Space Grotesk", Inter, system-ui, sans-serif; letter-spacing: -0.02em; font-weight: 600; text-wrap: balance; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* Navigation and footer, as on the landing page */
.top { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 84%, transparent); backdrop-filter: saturate(1.4) blur(14px); -webkit-backdrop-filter: saturate(1.4) blur(14px); border-bottom: 1px solid var(--line); }
nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand img { width: 30px; height: 30px; }
.brand span { font: 700 20px/1 "Space Grotesk", sans-serif; letter-spacing: -0.02em; }
.links { display: flex; align-items: center; gap: 22px; font-size: 15px; color: var(--dim); }
.links a { text-decoration: none; }
.links a:hover { color: var(--text); }
.links .gh { color: var(--text); padding: 7px 12px; border: 1px solid var(--line-strong); border-radius: 9px; }
footer { border-top: 1px solid var(--line); padding: 36px 0 48px; color: var(--muted); font-size: 14px; margin-top: 64px; }
footer .wrap { display: flex; justify-content: space-between; gap: 16px 28px; flex-wrap: wrap; }
footer nav { height: auto; gap: 22px; flex-wrap: wrap; justify-content: flex-start; }
footer a { text-decoration: none; color: var(--dim); }
footer a:hover { color: var(--text); }

/* The index */
.index { padding-top: 56px; }
.index h1 { font-size: clamp(34px, 5vw, 48px); line-height: 1.1; }
.index .lead { margin-top: 14px; color: var(--dim); font-size: 18px; max-width: 40em; }
.cards { list-style: none; margin-top: 36px; display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.cards a { display: block; height: 100%; padding: 22px 24px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); text-decoration: none; }
.cards a:hover { border-color: var(--line-strong); }
.cards h2 { font-size: 20px; }
.cards p { margin-top: 8px; color: var(--dim); font-size: 15px; }

/* A guide: contents on the left, the text on the right */
.doc { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 48px; padding-top: 40px; }
.doc aside { position: sticky; top: 88px; align-self: start; max-height: calc(100vh - 110px); overflow-y: auto; font-size: 14px; }
.doc aside summary { list-style: none; font-weight: 600; color: var(--text); margin-bottom: 10px; cursor: default; }
.doc aside summary::-webkit-details-marker { display: none; }
.doc aside ul { list-style: none; }
.doc aside li a { display: block; padding: 4px 0; color: var(--dim); text-decoration: none; line-height: 1.4; }
.doc aside li a:hover { color: var(--text); }
.doc aside li.d3 a { padding-left: 14px; font-size: 13.5px; color: var(--muted); }
.doc main { min-width: 0; max-width: 820px; }
.doc h1 { font-size: clamp(32px, 4.5vw, 44px); line-height: 1.1; }
.doc .meta { margin-top: 10px; color: var(--muted); font-size: 14px; }
.doc .meta a { color: var(--accent-text); text-decoration: none; }
.doc main h2 { font-size: 26px; margin: 44px 0 14px; border-top: 1px solid var(--line); padding-top: 28px; }
.doc main h3 { font-size: 19px; margin: 30px 0 10px; }
.doc main h2, .doc main h3 { position: relative; }
.doc .anchor { position: absolute; left: -0.9em; color: var(--muted); text-decoration: none; opacity: 0; }
.doc h2:hover .anchor, .doc h3:hover .anchor { opacity: 1; }
.doc main p, .doc main ul, .doc main ol { margin: 12px 0; color: var(--dim); }
.doc main li { margin: 4px 0 4px 22px; }
.doc main strong { color: var(--text); font-weight: 600; }
.doc main a { color: var(--accent-text); text-decoration: none; }
/* Links inside running text need more than color to stand out (WCAG 1.4.1) */
.doc main :is(p, li, td) a { text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.doc main a:hover { text-decoration: underline; }
.doc main :not(pre) > code { -webkit-box-decoration-break: clone; box-decoration-break: clone; font-size: 0.86em; background: var(--code-bg); border: 1px solid var(--line); border-radius: 5px; padding: 1px 5px; overflow-wrap: anywhere; color: var(--text); }
.doc main pre { margin: 16px 0; padding: 14px 16px; background: var(--code-bg); border: 1px solid var(--line); border-radius: 10px; overflow-x: auto; font-size: 13.5px; line-height: 1.55; }
.doc .table { margin: 16px 0; overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; }
.doc table { border-collapse: collapse; width: 100%; font-size: 14px; }
.doc th, .doc td { text-align: left; vertical-align: top; padding: 9px 12px; border-bottom: 1px solid var(--line); color: var(--dim); }
.doc th { color: var(--text); font-weight: 600; background: var(--surface); white-space: nowrap; }
.doc tr:last-child td { border-bottom: 0; }
/* Methods and paths stay on one line; longer shapes (the spec table) wrap. */
.doc td:first-child code, .doc tr:has(td:nth-child(3)) td:nth-child(2) code { white-space: nowrap; overflow-wrap: normal; }

@media (max-width: 860px) {
  .doc { grid-template-columns: 1fr; gap: 0; padding-top: 24px; }
  .doc aside { position: static; max-height: none; margin-bottom: 24px; border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; background: var(--surface); }
  .doc aside summary { cursor: pointer; margin: 0; }
  .doc aside details[open] summary { margin-bottom: 8px; }
  .doc .anchor { display: none; }
}
@media (max-width: 640px) {
  .wrap { padding: 0 16px; }
  .links { gap: 14px; }
  footer nav a { padding: 8px 0; }
}