/* Mars Onion — observatory circular, not a briefing-desk clone.
   Night canvas, dust plate, rust reticle. Condensed display + serif log.
   Not khaki FM, cream leaflet, gazette columns, navy brochure, or RFC sidebar. */
:root {
  --dust: #d9cbb8;
  --night: #1c1714;
  --ink: #241c18;
  --rust: #8a3a22;
  --rust-deep: #6b2c1a;
  --muted: #8a7a6a;
  --tick: #c4b49a;
  --font-head: "Yanone Kaffeesatz", "Arial Narrow", "Helvetica Neue", sans-serif;
  --font-body: "Source Serif 4", "Palatino Linotype", "Times New Roman", serif;
  --font-tab: "Barlow Condensed", "Arial Narrow", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { font-size: 17px; }
body {
  margin: 0;
  background: var(--night);
  color: var(--dust);
  font-family: var(--font-body);
  line-height: 1.52;
  position: relative;
}
.sky-dots {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.35;
}
img { max-width: 100%; height: auto; }
a { color: #e8c8b0; text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--dust); }
h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.05;
  margin: 1.05em 0 0.28em;
  color: var(--night);
}
h1 {
  font-size: clamp(2.4rem, 7vw, 4.1rem);
  letter-spacing: -0.03em;
  text-transform: none;
  margin-top: 0.1em;
}
h2 {
  font-size: clamp(1.45rem, 3vw, 1.9rem);
  text-transform: none;
  letter-spacing: -0.02em;
  border: 0;
  padding: 0;
  color: var(--rust-deep);
}
h3 {
  font-family: var(--font-tab);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: none;
  color: var(--ink);
}
p { margin: 0 0 0.72em; }
ul, ol { margin: 0 0 1em; padding-left: 1.15em; }
li { margin-bottom: 0.2em; }
strong { font-weight: 600; }
.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 40;
  background: var(--rust); color: var(--dust); padding: 0.4em 0.8em;
  font-family: var(--font-tab);
}
.skip-link:focus { left: 0; }

.sky-ephem {
  position: relative;
  z-index: 1;
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-tab);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dust);
  background: #140f0d;
}
.sky-ephem caption {
  caption-side: top;
  text-align: left;
  padding: 0.35rem 1.1rem 0.15rem;
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: var(--rust);
}
.sky-ephem th, .sky-ephem td {
  border: 1px solid #3a3028;
  padding: 0.28rem 0.7rem;
  text-align: left;
  font-variant-numeric: tabular-nums;
}
.sky-ephem th { color: #c4a080; font-weight: 600; }

.circ-head {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-areas:
    "num word stamp"
    "num meta stamp"
    "find find find";
  gap: 0.25rem 1.1rem;
  align-items: end;
  padding: 1.1rem 1.2rem 0.9rem;
  border-bottom: 1px solid var(--rust);
}
.circ-no {
  grid-area: num;
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(2.6rem, 8vw, 4.6rem);
  font-weight: 700;
  line-height: 0.85;
  letter-spacing: -0.04em;
  color: var(--rust);
  writing-mode: horizontal-tb;
}
.circ-no span {
  display: block;
  font-family: var(--font-tab);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--dust);
  margin-bottom: 0.15rem;
}
.wordmark {
  grid-area: word;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--dust);
  text-decoration: none;
  align-self: end;
}
.wordmark:hover { color: #e8c8b0; }
.mark { width: 48px; height: 48px; display: block; flex-shrink: 0; }
.brand-stack { display: flex; flex-direction: column; gap: 0.05rem; }
.brand-name {
  font-family: var(--font-head);
  font-size: 2.1rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  line-height: 1;
}
.brand-sec {
  font-family: var(--font-tab);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--rust);
}
.circ-meta {
  grid-area: meta;
  margin: 0;
  font-family: var(--font-tab);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.stamp {
  grid-area: stamp;
  margin: 0;
  width: 6.4rem;
  height: 6.4rem;
  border: 2px solid var(--rust);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: var(--font-tab);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--rust);
  transform: rotate(-12deg);
  justify-self: end;
  padding: 0.6rem;
}
.nav-toggle {
  display: none;
  grid-area: find;
  justify-self: start;
  background: transparent;
  color: var(--dust);
  border: 1px solid var(--rust);
  padding: 0.28rem 0.7rem;
  font-family: var(--font-tab);
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.finder {
  grid-area: find;
  display: grid;
  grid-template-columns: repeat(9, minmax(0, 1fr));
  gap: 1px;
  background: #3a3028;
  margin-top: 0.55rem;
}
.finder a {
  background: #241c18;
  color: var(--dust);
  text-decoration: none;
  font-family: var(--font-tab);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.45rem 0.4rem 0.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.08rem;
}
.finder a:hover { background: var(--rust-deep); color: var(--dust); }
.finder a[aria-current="page"] {
  background: var(--rust);
  color: var(--dust);
}
.finder .ha {
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: #c4a080;
  font-variant-numeric: tabular-nums;
}
.finder a[aria-current="page"] .ha { color: var(--dust); }

main {
  position: relative;
  z-index: 1;
  max-width: 46rem;
  margin: 1.4rem auto 0;
  background: var(--dust);
  color: var(--ink);
  padding: 0;
  border-left: 5px solid var(--rust);
  box-shadow: 0 0 0 1px #8a7a66;
}
main a { color: var(--rust-deep); }
main a:hover { color: var(--ink); }
.field-line {
  font-family: var(--font-tab);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  padding: 0.55rem 1.15rem 0.35rem;
  margin: 0;
  border-bottom: 1px solid var(--tick);
}
.crumbs {
  font-family: var(--font-tab);
  font-size: 0.86rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin: 0;
  padding: 0.4rem 1.15rem 0.55rem;
}
.crumbs a { color: var(--rust-deep); }

.plate, .exhibit {
  margin: 0;
  padding: 0;
  border: 0;
  background: #1c1714;
}
.plate img, .exhibit img { display: block; width: 100%; }
.plate figcaption, .exhibit figcaption {
  font-family: var(--font-tab);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0.35rem 1.15rem 0.55rem;
  background: var(--dust);
}

article { padding: 0.4rem 1.2rem 1.4rem; }
.cat-line {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  font-family: var(--font-tab);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0.2rem 0 0;
}
.cat-no {
  font-family: var(--font-head);
  font-size: 1.35rem;
  letter-spacing: 0.08em;
  color: var(--rust);
  font-weight: 700;
}
article p { max-width: 38rem; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  margin: 0 0 1rem;
  font-variant-numeric: tabular-nums;
}
th, td {
  border-bottom: 1px solid var(--tick);
  padding: 0.34rem 0.4rem 0.34rem 0;
  text-align: left;
  vertical-align: top;
}
th {
  font-family: var(--font-tab);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--rust-deep);
  background: transparent;
}
.ephem-stations {
  border-top: 2px solid var(--rust);
  border-bottom: 2px solid var(--rust);
}
.ephem-stations caption {
  caption-side: top;
  text-align: left;
  font-family: var(--font-tab);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0 0 0.35rem;
}
code.onion {
  font-family: var(--font-tab);
  font-size: 0.86rem;
  word-break: break-all;
  letter-spacing: 0.03em;
}

.doc-list { list-style: none; padding: 0; margin: 0 0 1em; }
.doc-list li {
  font-family: var(--font-tab);
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-top: 1px solid var(--tick);
  padding: 0.4rem 0;
  display: flex;
  justify-content: space-between;
  gap: 0.6rem;
}

.companions {
  background: #241c18;
  color: var(--dust);
  padding: 0.9rem 1.15rem 1.15rem;
  border-top: 1px solid var(--rust);
}
.companions h2 {
  font-family: var(--font-tab);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--rust);
  margin: 0 0 0.45rem;
}
.companions a { color: #e8c8b0; }
.ticket {
  width: 100%;
  margin: 0;
  font-family: var(--font-tab);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.ticket th, .ticket td {
  border-bottom: 1px solid #3a3028;
  padding: 0.28rem 0.4rem 0.28rem 0;
}
.ticket th {
  width: 3.2rem;
  color: #c4a080;
  font-variant-numeric: tabular-nums;
}
.scope {
  font-size: 0.88rem;
  color: #cfc0a8;
  margin: 0.7rem 0 0;
  max-width: 36rem;
}

footer[role="contentinfo"] {
  position: relative;
  z-index: 1;
  max-width: 46rem;
  margin: 0 auto 2.4rem;
  padding: 0 0 1.3rem;
  color: var(--dust);
  font-size: 0.9rem;
}
.horizon {
  height: 0;
  border-top: 1px solid var(--dust);
  margin: 1.3rem 0 1rem;
}
.footer-logo-link { display: inline-block; margin: 0 0 0.7rem; }
.logo-foot { display: block; width: 200px; height: auto; background: #000; }
.colophon p { margin: 0 0 0.4rem; color: #cfc0a8; max-width: 36rem; }
.foot-links {
  margin-top: 0.7rem;
  font-family: var(--font-tab);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.82rem;
}
footer a { color: #e8c8b0; }

@media (max-width: 860px) {
  .circ-head {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "num stamp"
      "word word"
      "meta meta"
      "find find";
  }
  .stamp { width: 5.2rem; height: 5.2rem; font-size: 0.62rem; }
  .nav-toggle { display: inline-block; }
  .finder { display: none; grid-template-columns: 1fr 1fr 1fr; }
  .circ-head.is-open .finder { display: grid; }
  main, footer[role="contentinfo"] { margin-left: 0.6rem; margin-right: 0.6rem; }
  .circ-no { font-size: 2.8rem; }
}
@media (min-width: 900px) {
  article p { max-width: 38rem; }
}

.onion-copy {
  cursor: pointer;
}
.onion-copy:hover {
  outline: 1px dashed currentColor;
  outline-offset: 2px;
}
.onion-copy.is-copied {
  outline: 1px solid currentColor;
  outline-offset: 2px;
}
.onion-copy.is-copied::after {
  content: " copied";
  font-size: 0.72em;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
  margin-left: 0.4em;
}