/* SUBSPAC3 controls: change these variables to recolor the whole site. */
:root {
  --bg: #090b0e;
  --surface: #10151a;
  --surface-2: #151c21;
  --text: #d7ded8;
  --muted: #87948e;
  --accent: #9df0bd;
  --accent-2: #f4a261;
  --line: #29342f;
  --display: "Arial Narrow", "Roboto Condensed", Arial, sans-serif;
  --mono: "Courier New", Courier, monospace;
  color-scheme: dark;
}

html[data-theme="space"] {
  --bg: #070a16;
  --surface: #0e1425;
  --surface-2: #141d32;
  --text: #dde5f2;
  --muted: #8492aa;
  --accent: #86d9e8;
  --accent-2: #d6a2ff;
  --line: #263453;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px) 0 0 / 100% 4px,
    radial-gradient(circle at 82% 8%, color-mix(in srgb, var(--accent) 7%, transparent), transparent 28rem),
    var(--bg);
  color: var(--text);
  font: 16px/1.65 var(--mono);
}
a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 4px; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 10; padding: .6rem 1rem; background: var(--accent); color: var(--bg); }
.skip-link:focus { top: 1rem; }
.page-shell { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

.site-header { min-height: 78px; display: flex; align-items: center; gap: 2rem; border-bottom: 1px solid var(--line); }
.wordmark { margin-right: auto; color: var(--text); font: 800 1.05rem/1 var(--display); letter-spacing: .2em; text-decoration: none; }
.wordmark span { color: var(--accent); }
nav { display: flex; gap: 1.5rem; }
nav a { color: var(--muted); font-size: .75rem; letter-spacing: .1em; text-decoration: none; text-transform: uppercase; }
nav a:hover, nav a[aria-current="page"] { color: var(--accent); }
.mode-switch { border: 1px solid var(--line); background: transparent; color: var(--muted); padding: .45rem .65rem; font: .65rem var(--mono); letter-spacing: .08em; cursor: pointer; }
.mode-switch:hover { border-color: var(--accent); color: var(--accent); }

main { padding: 5rem 0; }
.intro { max-width: 760px; padding: 1.5rem 0 6rem; }
.eyebrow { margin: 0 0 1rem; color: var(--accent); font-size: .68rem; letter-spacing: .19em; text-transform: uppercase; }
h1, h2, h3 { font-family: var(--display); line-height: 1.08; }
h1 { margin: 0; font-size: clamp(2.55rem, 7vw, 5.8rem); font-weight: 800; letter-spacing: -.035em; text-transform: uppercase; }
.lede { max-width: 620px; margin: 1.5rem 0 2.3rem; color: var(--muted); font: 1.05rem/1.7 var(--mono); }
.status-line { display: inline-flex; align-items: center; gap: .65rem; border: 1px solid var(--line); background: var(--surface); padding: .55rem .8rem; font-size: .78rem; }
.status-light { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); }
.status-label { color: var(--muted); }
.fine-print { color: var(--muted); font-size: .68rem; }

section { margin-bottom: 6rem; }
.panel { border: 1px solid var(--line); background: color-mix(in srgb, var(--surface) 88%, transparent); padding: clamp(1.25rem, 4vw, 2.3rem); }
.section-heading { display: flex; align-items: baseline; gap: .8rem; margin-bottom: 2rem; }
.section-heading > span { color: var(--accent-2); font-size: .65rem; }
.section-heading h2 { margin: 0; font-size: clamp(1.35rem, 3vw, 2rem); letter-spacing: .03em; text-transform: uppercase; }
.occupancy-grid { display: grid; grid-template-columns: minmax(0, 2fr) minmax(220px, 1fr); gap: 3rem; }
.occupancy-list p { display: grid; grid-template-columns: minmax(190px, .8fr) 1fr; align-items: center; gap: 1rem; margin: .75rem 0; color: var(--muted); font-size: .75rem; }
.occupancy-list i { height: 6px; background: var(--line); }
.occupancy-list i::after { content: ""; display: block; width: var(--level); height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
.attention-box { align-self: center; border-left: 2px solid var(--accent-2); padding: .25rem 0 .25rem 1.25rem; }
.attention-box span, .attention-box small { display: block; color: var(--muted); font-size: .61rem; letter-spacing: .08em; text-transform: uppercase; }
.attention-box strong { display: block; margin: .6rem 0; font: 1.05rem/1.4 var(--display); text-transform: uppercase; }

.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: solid var(--line); border-width: 1px 0 0 1px; }
.card { min-height: 220px; margin: 0; padding: 1.6rem; border: solid var(--line); border-width: 0 1px 1px 0; background: color-mix(in srgb, var(--surface) 55%, transparent); }
.card > span { color: var(--accent); font-size: .65rem; }
.card h3 { margin: 2.4rem 0 .6rem; font-size: 1.3rem; text-transform: uppercase; }
.card p { margin: 0; color: var(--muted); font-size: .76rem; line-height: 1.6; }

.questions ol { list-style: none; margin: 0; padding: 0; counter-reset: questions; columns: 2; column-gap: 3rem; }
.questions li { break-inside: avoid; counter-increment: questions; border-bottom: 1px solid var(--line); padding: .85rem 0; font: 1rem/1.45 var(--display); }
.questions li::before { content: "0" counter(questions) " / "; color: var(--accent); font: .64rem var(--mono); }
.split-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.split-layout > section { margin-bottom: 6rem; }
.playlist { list-style: none; margin: 0; padding: 0; counter-reset: tracks; }
.playlist li { counter-increment: tracks; display: grid; grid-template-columns: 1.3rem 1fr; border-bottom: 1px solid var(--line); padding: .6rem 0; }
.playlist li::before { content: "0" counter(tracks); grid-row: span 2; color: var(--accent); font-size: .58rem; padding-top: .2rem; }
.playlist span { font: .9rem var(--display); text-transform: uppercase; }
.playlist strong { color: var(--muted); font-size: .65rem; font-weight: normal; }
.signal-preview article { border-bottom: 1px solid var(--line); padding: 0 0 1rem; margin: 0 0 1rem; }
.signal-preview time, .signal-log time { color: var(--accent-2); font-size: .66rem; }
.signal-preview p { margin: .25rem 0; font-size: .75rem; }
.text-link { display: inline-block; margin-top: 1rem; color: var(--accent); font-size: .75rem; text-underline-offset: 4px; }
.archive-callout { display: flex; align-items: center; justify-content: space-between; gap: 2rem; border: 1px solid var(--line); padding: clamp(1.5rem, 5vw, 3rem); }
.archive-callout h2 { margin: 0; font-size: 2rem; text-transform: uppercase; }
.archive-callout p:last-child { color: var(--muted); font-size: .78rem; }
.button-link { flex: none; border: 1px solid var(--accent); padding: .7rem 1rem; color: var(--accent); font-size: .72rem; text-decoration: none; text-transform: uppercase; }
.button-link:hover { background: var(--accent); color: var(--bg); }

.inner-page { max-width: 900px; min-height: 70vh; }
.page-title { margin: 1rem 0 5rem; border-bottom: 1px solid var(--line); padding-bottom: 2rem; }
.page-title h1 { font-size: clamp(2.7rem, 8vw, 5rem); }
.page-title > p:last-child { color: var(--muted); }
.signal-log { margin-bottom: 3rem; }
.signal-log article { display: grid; grid-template-columns: 150px 1fr; gap: 2rem; border-bottom: 1px solid var(--line); padding: 2rem 0; }
.signal-log p { margin: 0 0 .5rem; }
.archive-grid { display: grid; grid-template-columns: 1fr 1fr; border: solid var(--line); border-width: 1px 0 0 1px; margin-bottom: 3rem; }
.archive-grid section { min-height: 210px; margin: 0; padding: 1.5rem; border: solid var(--line); border-width: 0 1px 1px 0; }
.archive-grid span { color: var(--accent-2); font-size: .65rem; }
.archive-grid h2 { margin: 1.8rem 0 .5rem; font-size: 1.2rem; text-transform: uppercase; }
.archive-grid p { color: var(--muted); font-size: .74rem; }
.archive-grid a, .archive-grid em { color: var(--accent); font-size: .68rem; font-style: normal; }

footer { display: flex; justify-content: space-between; gap: 2rem; border-top: 1px solid var(--line); padding: 2rem 0 3rem; color: var(--muted); font-size: .65rem; }
footer > div:first-child { display: grid; }
footer strong { color: var(--text); letter-spacing: .15em; }
.footer-data { display: flex; align-items: center; gap: 1.3rem; text-align: right; }
.counter b { border: 1px solid var(--line); padding: .15rem .3rem; color: var(--accent); letter-spacing: .12em; }

@media (max-width: 760px) {
  .page-shell { width: min(100% - 28px, 1120px); }
  .site-header { flex-wrap: wrap; gap: .8rem 1.2rem; padding: 1rem 0; }
  .wordmark { width: 100%; }
  nav { margin-right: auto; gap: 1rem; }
  main { padding-top: 3rem; }
  .intro { padding-bottom: 4rem; }
  section { margin-bottom: 4rem; }
  .occupancy-grid, .split-layout { grid-template-columns: 1fr; }
  .split-layout > section { margin-bottom: 0; }
  .split-layout { margin-bottom: 4rem; }
  .card-grid { grid-template-columns: 1fr 1fr; }
  .questions ol { columns: 1; }
  .archive-callout { align-items: flex-start; flex-direction: column; }
  .archive-grid { grid-template-columns: 1fr; }
  .signal-log article { grid-template-columns: 1fr; gap: .5rem; }
  footer, .footer-data { flex-direction: column; align-items: flex-start; text-align: left; }
}

@media (max-width: 480px) {
  .card-grid { grid-template-columns: 1fr; }
  .occupancy-list p { grid-template-columns: 1fr; gap: .25rem; }
  .mode-switch { font-size: .58rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}