@import url("tokens.css");

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; overflow-x: clip; background: var(--paper); color: var(--ink); font: 400 17px/1.6 var(--f-body); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--red-ink); text-underline-offset: 3px; }
a:hover { color: var(--red); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 2px; }
h1, h2, h3, h4 { font-family: var(--f-display); font-weight: 600; line-height: 1.1; letter-spacing: .01em; margin: 0 0 .5em; text-wrap: balance; }
h1 { font-size: clamp(40px, 7vw, 84px); text-transform: uppercase; letter-spacing: .005em; }
h2 { font-size: clamp(30px, 4.2vw, 48px); text-transform: uppercase; }
h3 { font-size: clamp(20px, 2.2vw, 26px); }
p { margin: 0 0 1em; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.narrow { max-width: 760px; }
.eyebrow { font: 600 13px/1 var(--f-display); letter-spacing: .18em; text-transform: uppercase; color: var(--red-ink); margin: 0 0 14px; display: block; }
.lede { font-size: clamp(18px, 2vw, 21px); color: var(--ink-2); max-width: 680px; }
.mono { font-family: var(--f-mono); }
.muted { color: var(--ink-3); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--paper); padding: 8px 12px; z-index: 100; }
.skip:focus { left: 8px; }

/* -------------------------------------------------------------- tribute band */
.band { background: var(--ink); color: #ece6da; font-size: 13px; }
.band .wrap { padding-top: 7px; padding-bottom: 7px; text-align: center; line-height: 1.45; }
.band a { color: #fff; }

/* -------------------------------------------------------------------- header */
.site-head { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--paper) 92%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.site-head .wrap { display: flex; align-items: center; gap: 20px; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.logo-mark { width: 30px; height: 30px; flex: none; }
.logo-word { font: 700 22px/1 var(--f-display); letter-spacing: .16em; }
.nav { margin-left: auto; display: flex; gap: 4px; align-items: center; }
.nav a { color: var(--ink-2); text-decoration: none; font: 500 15px/1 var(--f-body); padding: 9px 12px; border-radius: var(--radius); }
.nav a:hover { background: var(--paper-2); color: var(--ink); }
.nav a[aria-current="page"] { color: var(--ink); box-shadow: inset 0 -2px 0 var(--red); border-radius: 0; }
.nav-toggle { display: none; margin-left: auto; background: none; border: 1px solid var(--line); border-radius: var(--radius); padding: 8px 10px; color: var(--ink); font: 500 14px var(--f-body); }
@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; align-items: stretch; background: var(--paper); border-bottom: 1px solid var(--line); padding: 8px var(--gutter) 16px; }
  .nav.open { display: flex; }
  .nav a { padding: 12px; }
}

/* ------------------------------------------------------------------- buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; font: 600 15px/1 var(--f-display); letter-spacing: .1em; text-transform: uppercase;
  padding: 15px 22px; border-radius: var(--radius); text-decoration: none; border: 2px solid var(--ink); color: var(--ink); background: transparent; cursor: pointer; }
.btn:hover { background: var(--ink); color: var(--paper); }
.btn.primary { background: var(--red); border-color: var(--red); color: #fff; }
.btn.primary:hover { background: var(--red-ink); border-color: var(--red-ink); color: #fff; }
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; }

/* ------------------------------------------------------------------ sections */
section { padding: clamp(56px, 9vw, 112px) 0; }
section.tight { padding: clamp(36px, 6vw, 64px) 0; }
.alt { background: var(--paper-2); }
.ink { background: var(--ink); color: #ece6da; }
.ink h2, .ink h3 { color: #fff; }
.ink .eyebrow { color: #ff7b92; }
.ink .lede, .ink .muted { color: #bdb6aa; }
.redbg { background: var(--red); color: #fff; }
.redbg h2 { color: #fff; }
.grid { display: grid; gap: clamp(18px, 3vw, 32px); }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 900px) { .g3, .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .g2, .g3, .g4 { grid-template-columns: minmax(0, 1fr); } }
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(28px, 5vw, 72px); align-items: center; }
.split.rev > :first-child { order: 2; }
@media (max-width: 860px) { .split { grid-template-columns: minmax(0, 1fr); } .split.rev > :first-child { order: 0; } }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 24px; box-shadow: var(--shadow); }
.card h3 { margin-bottom: .35em; }
.card p:last-child { margin-bottom: 0; }

/* ------------------------------------------------------------------- figures */
figure { margin: 0; }
figcaption { font-size: 13.5px; color: var(--ink-3); margin-top: 10px; line-height: 1.45; }
figcaption b { color: var(--ink-2); font-weight: 600; }
.frame { border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: #fff; box-shadow: var(--shadow); }
.scan { background: #fff; padding: 6px; border-radius: 4px; border: 1px solid var(--line); box-shadow: var(--shadow); }

/* --------------------------------------------------------------------- stats */
.stats { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); border-top: 2px solid var(--ink); border-bottom: 2px solid var(--ink); }
.stat { padding: 20px 14px; border-right: 1px solid var(--line); }
.stat:last-child { border-right: 0; }
.stat b { display: block; font: 600 clamp(26px, 3.4vw, 40px)/1 var(--f-display); }
.stat span { display: block; margin-top: 6px; font-size: 13px; color: var(--ink-3); line-height: 1.3; }
@media (max-width: 900px) { .stats { grid-template-columns: repeat(3, minmax(0, 1fr)); } .stat:nth-child(3) { border-right: 0; } .stat:nth-child(-n+3) { border-bottom: 1px solid var(--line); } }
@media (max-width: 520px) { .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); } .stat { border-right: 1px solid var(--line) !important; border-bottom: 1px solid var(--line); } .stat:nth-child(2n) { border-right: 0 !important; } }

/* ------------------------------------------------------------- spec tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; background: var(--card); }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
thead th { font: 600 12px/1.2 var(--f-display); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); background: var(--paper-2); }
tbody tr:last-child td { border-bottom: 0; }
td.num { font-family: var(--f-mono); font-size: 14px; white-space: nowrap; }

.tag { display: inline-block; font: 600 10.5px/1 var(--f-display); letter-spacing: .1em; text-transform: uppercase; padding: 4px 7px; border-radius: 3px; vertical-align: 2px; }
.tag.documented { background: #1f6b46; color: #fff; }
.tag.derived { background: #2b5c8f; color: #fff; }
.tag.estimated { background: #b7791f; color: #fff; }

/* --------------------------------------------------------------------- prose */
.prose { max-width: 720px; }
.prose h2 { margin-top: 1.6em; }
.prose h3 { margin-top: 1.4em; }
.prose blockquote { margin: 1.4em 0; padding: 4px 0 4px 20px; border-left: 4px solid var(--red); font-size: 1.08em; color: var(--ink-2); }
.prose ul, .prose ol { padding-left: 1.2em; }
.prose li { margin-bottom: .35em; }
.callout { border-left: 4px solid var(--green); background: var(--card); padding: 16px 20px; border-radius: 0 8px 8px 0; margin: 1.4em 0; }

/* -------------------------------------------------------------------- quote */
.quote { font: 500 clamp(20px, 2.4vw, 27px)/1.35 var(--f-body); margin: 0 0 14px; }
.quote::before { content: "“"; font-family: var(--f-display); color: var(--red); font-size: 1.6em; line-height: 0; vertical-align: -.35em; margin-right: 2px; }
cite { font-style: normal; font: 600 13px var(--f-display); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); }

/* -------------------------------------------------------------------- footer */
.site-foot { background: var(--ink); color: #bdb6aa; padding: 48px 0 32px; font-size: 14px; }
.site-foot a { color: #ece6da; }
.site-foot .cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
.site-foot h4 { color: #fff; font-size: 13px; letter-spacing: .16em; text-transform: uppercase; margin-bottom: 12px; }
.site-foot ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.site-foot .fine { border-top: 1px solid #36322d; margin-top: 32px; padding-top: 18px; font-size: 12.5px; color: #8f887d; }
@media (max-width: 760px) { .site-foot .cols { grid-template-columns: minmax(0, 1fr); } }

/* --------------------------------------------------------------- page hero */
.page-hero { padding: clamp(48px, 8vw, 96px) 0 clamp(28px, 4vw, 48px); border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: clamp(38px, 6vw, 68px); }

/* embedded viewer */
.viewer-embed { position: relative; aspect-ratio: 16 / 9; border-radius: 10px; overflow: hidden; background: #1a1918; border: 1px solid #2c2a27; }
.viewer-embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
@media (max-width: 620px) { .viewer-embed { aspect-ratio: 4 / 5; } }