@font-face { font-family: "Archivo"; src: url("assets/archivo-variable.ttf") format("truetype"); font-weight: 100 900; font-stretch: 62% 125%; font-style: normal; font-display: swap; }
@font-face { font-family: "Roboto Mono"; src: url("assets/roboto-mono-variable.ttf") format("truetype"); font-weight: 100 700; font-style: normal; font-display: swap; }

:root {
  --void: #080d12;
  --deep: #0e151b;
  --graphite: #172028;
  --text: #e9eef2;
  --muted: #aab4bc;
  --dim: #66727b;
  --accent: #f0a43c;
  --line: rgba(220, 230, 236, .19);
  --line-strong: rgba(220, 230, 236, .42);
  --edge: clamp(1rem, 3vw, 3.5rem);
  --rail: clamp(2.7rem, 5vw, 5.25rem);
  --sans: "Archivo", "Arial Narrow", Arial, sans-serif;
  --mono: "Roboto Mono", Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--void); }
body { margin: 0; overflow-x: hidden; background: var(--void); color: var(--text); font-family: var(--sans); line-height: 1.5; }
img { display: block; width: 100%; height: 100%; object-fit: cover; }
a { color: inherit; text-decoration: none; }
p, h1, h2, h3, figure, dl, dd, ol { margin: 0; }
::selection { background: var(--accent); color: var(--void); }

.skip-link { position: fixed; z-index: 300; top: .75rem; left: .75rem; padding: .7rem 1rem; background: var(--accent); color: var(--void); font: 600 .75rem var(--mono); transform: translateY(-180%); transition: transform .2s; }
.skip-link:focus { transform: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }

.site-header { height: 4.4rem; position: absolute; z-index: 50; inset: 0 0 auto; display: grid; grid-template-columns: minmax(13rem, .75fr) 1fr auto auto; align-items: center; gap: clamp(1rem, 3vw, 3.5rem); padding: 0 var(--edge); border-bottom: 1px solid var(--line); background: rgba(8, 13, 18, .28); color: var(--text); backdrop-filter: blur(8px); }
.wordmark { display: inline-flex; align-items: center; gap: .75rem; width: max-content; font-size: 1rem; font-weight: 750; letter-spacing: -.03em; text-transform: uppercase; }
.wordmark svg { width: 1.7rem; fill: none; stroke: currentColor; stroke-width: 1.5; }
.descriptor, .edition, .site-header nav { font: 500 .58rem var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.descriptor { color: var(--muted); }
.site-header nav { display: flex; gap: clamp(1rem, 2.2vw, 2.5rem); }
.site-header nav a { position: relative; padding: .85rem 0; }
.site-header nav a::after { content: ""; position: absolute; inset: auto 0 .45rem; height: 1px; background: var(--accent); transform: scaleX(0); transform-origin: right; transition: transform .2s; }
.site-header nav a:hover::after, .site-header nav a:focus-visible::after { transform: scaleX(1); transform-origin: left; }
.edition { color: var(--muted); white-space: nowrap; }
.edition b { margin-left: .75rem; color: var(--accent); font-weight: 500; }

.signal { color: var(--accent); font: 570 .63rem var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.line-link { display: flex; align-items: center; justify-content: space-between; width: min(25rem, 100%); padding: 1rem 0 .8rem; border-bottom: 1px solid var(--accent); font: 550 .66rem var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.line-link span { color: var(--accent); font-size: 1rem; transition: transform .2s; }
.line-link:hover span { transform: translateY(.2rem); }
figcaption { color: var(--muted); font: 450 .56rem/1.5 var(--mono); letter-spacing: .05em; text-transform: uppercase; }

.celestial-field { min-height: 100svh; position: relative; display: grid; grid-template-columns: var(--rail) minmax(18rem, .55fr) minmax(28rem, 1fr); grid-template-rows: 4.4rem 1fr auto; overflow: hidden; background: var(--void); }
.meridian { grid-column: 1; grid-row: 2 / 4; z-index: 4; display: flex; flex-direction: column; align-items: center; justify-content: space-around; border-right: 1px solid var(--line); color: var(--dim); font: .5rem var(--mono); }
.meridian::before { content: "N"; position: absolute; top: 5.3rem; color: var(--accent); }
.meridian span { writing-mode: vertical-rl; }
.field-image { grid-column: 2 / 4; grid-row: 1 / 4; position: relative; overflow: hidden; }
.field-image img { object-position: 55% center; filter: saturate(.7) contrast(1.12) brightness(.78); transform: scale(1.02); transform-origin: 60% 48%; will-change: transform; animation: celestial-drift 10s ease-in-out infinite; }
.field-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(8,13,18,.95) 0%, rgba(8,13,18,.62) 36%, rgba(8,13,18,.08) 72%), linear-gradient(0deg, rgba(8,13,18,.8), transparent 48%); }
.field-image figcaption { position: absolute; z-index: 3; right: var(--edge); bottom: 1.2rem; display: flex; gap: 2rem; }
.field-copy { grid-column: 2 / 4; grid-row: 2 / 4; z-index: 5; align-self: end; display: grid; grid-template-columns: minmax(20rem, .8fr) minmax(18rem, .45fr); gap: 2rem 8vw; padding: clamp(7rem, 13vh, 10rem) var(--edge) clamp(2rem, 5vw, 4rem); }
.field-copy .signal { grid-column: 1; }
.field-copy h1 { grid-column: 1 / -1; max-width: 11ch; font-size: clamp(4.8rem, 10.5vw, 10.8rem); font-weight: 650; letter-spacing: -.075em; line-height: .73; text-transform: uppercase; }
.field-copy h1 span { color: transparent; -webkit-text-stroke: 1px var(--text); }
.standfirst { grid-column: 2; max-width: 35rem; align-self: end; color: #d6dde2; font-size: clamp(1rem, 1.5vw, 1.25rem); line-height: 1.45; }
.field-copy .line-link { grid-column: 2; }
.field-data { grid-column: 2; grid-row: 2; z-index: 5; align-self: start; display: grid; grid-template-columns: repeat(3, minmax(7rem, 1fr)); margin-top: 3rem; border-block: 1px solid var(--line); }
.field-data p { padding: .8rem 1rem .8rem 0; font: 500 .57rem var(--mono); text-transform: uppercase; }
.field-data span { display: block; margin-bottom: .35rem; color: var(--dim); }

.object-plate { position: relative; display: grid; grid-template-columns: var(--rail) minmax(19rem, .7fr) minmax(30rem, 1.15fr); grid-template-rows: auto auto; min-height: 76rem; background: var(--text); color: var(--void); }
.plate-code { grid-column: 1; grid-row: 1 / 3; padding-top: 2rem; border-right: 1px solid rgba(8,13,18,.25); color: rgba(8,13,18,.28); font: 600 .58rem var(--mono); text-align: center; writing-mode: vertical-rl; letter-spacing: .35em; }
.plate-heading { grid-column: 2; grid-row: 1; z-index: 2; padding: clamp(5rem, 9vw, 10rem) clamp(2rem, 5vw, 6rem) 4rem var(--edge); }
.plate-heading h2 { max-width: 9ch; margin: 1.25rem 0 2rem; font-size: clamp(3.4rem, 6.7vw, 7.2rem); font-weight: 610; letter-spacing: -.065em; line-height: .87; }
.plate-heading > p:last-child { max-width: 39rem; font-size: clamp(1rem, 1.35vw, 1.2rem); }
.object-image { grid-column: 3; grid-row: 1 / 3; min-height: 76rem; position: relative; overflow: hidden; background: var(--deep); }
.object-image img { object-position: 58% center; }
.object-image figcaption { position: absolute; inset: auto 0 0; padding: 1rem; background: rgba(8,13,18,.87); color: var(--text); }
.object-data { grid-column: 2; grid-row: 2; align-self: end; display: grid; grid-template-columns: 1fr 1fr; margin: 0 clamp(2rem, 5vw, 6rem) clamp(4rem, 7vw, 7rem) var(--edge); border-top: 2px solid var(--void); }
.object-data div { min-height: 6rem; padding: 1rem 1rem 1rem 0; border-bottom: 1px solid rgba(8,13,18,.28); }
.object-data div:nth-child(even) { padding-left: 1rem; border-left: 1px solid rgba(8,13,18,.28); }
.object-data dt { margin-bottom: .55rem; color: #58646c; font: 500 .57rem var(--mono); text-transform: uppercase; }
.object-data dd { font-size: .9rem; font-weight: 600; }
.object-data .wide { grid-column: 1 / -1; display: grid; grid-template-columns: 7rem 1fr; gap: 1rem; min-height: 10rem; padding-top: 1.5rem; }
.object-data .wide dd { max-width: 43rem; font-weight: 430; line-height: 1.55; }

.scale-ledger { padding: clamp(6rem, 10vw, 12rem) var(--edge) clamp(8rem, 13vw, 15rem) calc(var(--rail) + var(--edge)); background: var(--void); }
.scale-ledger header { display: grid; grid-template-columns: .4fr 1fr; gap: 3rem; align-items: start; margin-bottom: clamp(5rem, 9vw, 10rem); }
.scale-ledger h2 { max-width: 14ch; font-size: clamp(3rem, 6vw, 6.4rem); font-weight: 540; letter-spacing: -.06em; line-height: .9; }
.distance-list { list-style: none; padding: 0; }
.distance-list li { position: relative; display: grid; grid-template-columns: minmax(11rem, .8fr) minmax(8rem, .5fr) 1fr minmax(13rem, .8fr); gap: 2rem; align-items: baseline; min-height: 8.5rem; padding: 1.3rem 0; border-top: 1px solid var(--line); }
.distance-list li::after { content: ""; position: absolute; bottom: -1px; left: 0; width: var(--reach); height: 2px; background: var(--accent); }
.distance-list .value { font-size: clamp(2.5rem, 5vw, 5.7rem); font-weight: 620; letter-spacing: -.065em; line-height: .9; }
.distance-list .unit { color: var(--accent); font: 500 .66rem var(--mono); text-transform: uppercase; }
.distance-list strong { font-size: 1.05rem; font-weight: 600; }
.distance-list small { color: var(--muted); font: .63rem/1.5 var(--mono); }

.ground-work { display: grid; grid-template-columns: var(--rail) minmax(23rem, .8fr) minmax(28rem, 1.2fr); background: var(--graphite); }
.ground-panorama { grid-column: 1 / -1; height: min(66vw, 52rem); position: relative; }
.ground-panorama img { object-position: center 60%; filter: saturate(.75) contrast(1.08); }
.ground-panorama figcaption, .dome-figure figcaption { position: absolute; inset: auto 0 0 auto; max-width: 26rem; padding: .9rem 1.2rem; background: var(--void); }
.ground-intro { grid-column: 2; padding: clamp(5rem, 10vw, 10rem) clamp(2rem, 5vw, 6rem) clamp(4rem, 7vw, 7rem) var(--edge); }
.ground-intro h2 { max-width: 10ch; margin: 1.2rem 0 2rem; font-size: clamp(3.2rem, 6vw, 6.6rem); font-weight: 560; letter-spacing: -.065em; line-height: .88; }
.ground-intro > p:last-child { max-width: 37rem; color: var(--muted); font-size: 1.08rem; }
.dome-figure { grid-column: 3; position: relative; min-height: 52rem; }
.dome-figure img { object-position: 54% center; }
.practice-lines { grid-column: 2 / -1; display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); }
.practice-lines article { min-height: 18rem; padding: 2rem var(--edge); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.practice-lines span { color: var(--accent); font: .6rem var(--mono); text-transform: uppercase; }
.practice-lines h3 { max-width: 16ch; margin: 3.5rem 0 1rem; font-size: clamp(1.65rem, 2.5vw, 2.8rem); font-weight: 560; letter-spacing: -.045em; line-height: 1; }
.practice-lines p { max-width: 34rem; color: var(--muted); }

.unaided { padding: clamp(7rem, 12vw, 14rem) var(--edge) clamp(8rem, 14vw, 16rem) calc(var(--rail) + var(--edge)); background: var(--text); color: var(--void); }
.unaided > header { display: grid; grid-template-columns: .4fr 1fr; gap: 3rem; margin-bottom: 6rem; }
.unaided h2 { max-width: 12ch; font-size: clamp(3.2rem, 6.3vw, 7rem); font-weight: 600; letter-spacing: -.065em; line-height: .86; }
.target-ledger { border-top: 2px solid var(--void); }
.target { min-height: 12rem; position: relative; display: grid; grid-template-columns: minmax(8rem, .35fr) minmax(15rem, .7fr) 1fr; gap: 2rem; align-items: start; padding: 1.4rem 0; border-bottom: 1px solid rgba(8,13,18,.32); }
.target > p:first-child { display: flex; justify-content: space-between; color: #5f6970; font: .6rem var(--mono); text-transform: uppercase; }
.target > p:first-child b { color: var(--accent); font-weight: 600; }
.target h3 { font-size: clamp(2rem, 3vw, 3.3rem); font-weight: 570; letter-spacing: -.055em; line-height: .9; }
.target > p:last-of-type { max-width: 42rem; font-size: 1rem; }
.target img { width: 10rem; height: 10rem; position: absolute; z-index: 2; top: 1rem; right: 2rem; object-position: center; opacity: 0; transform: translateX(1rem); transition: opacity .25s, transform .25s; pointer-events: none; }
.target:has(img) > p:last-of-type { padding-right: 13rem; }
.target:hover img, .target:focus-within img { opacity: 1; transform: none; }

.mechanics { min-height: 60rem; display: grid; grid-template-columns: var(--rail) minmax(22rem, .8fr) minmax(35rem, 1.2fr); background: var(--deep); }
.mechanics::before { content: "PHASE / ANGLE"; grid-column: 1; grid-row: 1; padding-top: 2rem; border-right: 1px solid var(--line); color: var(--dim); font: .55rem var(--mono); letter-spacing: .15em; text-align: center; writing-mode: vertical-rl; }
.mechanics-copy { grid-column: 2; padding: clamp(6rem, 11vw, 11rem) clamp(2rem, 5vw, 6rem) 6rem var(--edge); }
.mechanics-copy h2 { max-width: 9ch; margin: 1.2rem 0 2rem; font-size: clamp(3.2rem, 6vw, 6.8rem); font-weight: 560; letter-spacing: -.065em; line-height: .86; }
.mechanics-copy > p:nth-of-type(2) { max-width: 37rem; color: var(--muted); font-size: 1.05rem; }
.correction { max-width: 35rem; margin-top: 4rem; padding-top: 1.2rem; border-top: 1px solid var(--accent); color: var(--muted); }
.correction strong { display: block; margin-bottom: .6rem; color: var(--accent); font: .6rem var(--mono); text-transform: uppercase; }
.phase-diagram { grid-column: 3; position: relative; display: grid; place-items: center; overflow: hidden; border-left: 1px solid var(--line); background: #0a1015; }
.phase-diagram > p { position: absolute; right: 1.2rem; bottom: 1rem; color: var(--dim); font: .53rem var(--mono); text-transform: uppercase; }
.sun { width: 10rem; height: 20rem; position: absolute; left: -5rem; display: grid; place-items: center; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 1px rgba(240,164,60,.25); }
.sun span { margin-left: 5rem; color: var(--void); font: 600 .58rem var(--mono); text-transform: uppercase; writing-mode: vertical-rl; }
.rays { position: absolute; inset: 12% 10% 12% 5rem; display: flex; flex-direction: column; justify-content: space-between; }
.rays i { height: 1px; background: linear-gradient(90deg, var(--accent), transparent); transform: rotate(-4deg); }
.orbit { width: min(32vw, 30rem); aspect-ratio: 1; position: relative; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 50%; }
.earth { width: 5.5rem; aspect-ratio: 1; display: grid; place-items: center; border-radius: 50%; background: #273944; color: var(--text); font: .56rem var(--mono); text-transform: uppercase; box-shadow: inset 1.4rem 0 0 #111b22; }
.luna { position: absolute; display: grid; gap: .55rem; place-items: center; }
.luna b { width: 2.4rem; aspect-ratio: 1; display: block; border-radius: 50%; background: var(--text); box-shadow: inset 1.2rem 0 0 var(--void); }
.luna em { color: var(--muted); font: .52rem var(--mono); text-transform: uppercase; white-space: nowrap; }
.luna.new { left: -1.2rem; top: calc(50% - 1.2rem); }
.luna.new b { background: var(--void); box-shadow: inset -3px 0 0 var(--dim); }
.luna.first { left: calc(50% - 1.2rem); top: -1.2rem; }
.luna.first b { box-shadow: inset 1.2rem 0 0 var(--void); }
.luna.full { right: -1.2rem; top: calc(50% - 1.2rem); }
.luna.full b { box-shadow: none; }
.luna.last { left: calc(50% - 1.2rem); bottom: -2.5rem; }
.luna.last b { box-shadow: inset -1.2rem 0 0 var(--void); }

.atlas { padding: clamp(7rem, 12vw, 14rem) var(--edge) clamp(6rem, 10vw, 11rem) calc(var(--rail) + var(--edge)); background: var(--void); }
.atlas > header { display: grid; grid-template-columns: .35fr 1fr .55fr; gap: clamp(2rem, 5vw, 6rem); align-items: end; margin-bottom: clamp(5rem, 9vw, 9rem); }
.atlas h2 { font-size: clamp(3.5rem, 7vw, 7.8rem); font-weight: 560; letter-spacing: -.075em; line-height: .8; }
.atlas header > p:last-child { color: var(--muted); }
.atlas-index { border-top: 2px solid var(--text); }
.atlas-index article { min-height: 8.5rem; position: relative; display: grid; grid-template-columns: 6rem minmax(16rem, 1fr) minmax(13rem, .7fr) minmax(16rem, .7fr); gap: 2rem; align-items: center; border-bottom: 1px solid var(--line); transition: padding .2s, color .2s; }
.catalog { color: var(--accent); font: 600 .78rem var(--mono); }
.atlas-index h3 { font-size: clamp(1.5rem, 2.4vw, 2.6rem); font-weight: 560; letter-spacing: -.04em; }
.atlas-index p, .atlas-index small { color: var(--muted); font: .62rem/1.5 var(--mono); text-transform: uppercase; }
.atlas-index img { width: 13rem; height: 7rem; position: absolute; z-index: 3; right: 1rem; opacity: 0; transform: scale(.94); transition: opacity .2s, transform .2s; box-shadow: 0 0 0 1px var(--line); pointer-events: none; }
.atlas-index article:hover { padding-left: 1rem; color: var(--accent); }
.atlas-index article:hover img { opacity: 1; transform: none; }
.atlas-index article:has(img) small { padding-right: 14rem; }

.observation-notes { display: grid; grid-template-columns: var(--rail) minmax(19rem, .55fr) minmax(35rem, 1.45fr); background: var(--text); color: var(--void); }
.observation-notes::before { content: "LOG / RETURN"; grid-column: 1; grid-row: 1; padding-top: 2rem; border-right: 1px solid rgba(8,13,18,.25); color: #738089; font: .55rem var(--mono); letter-spacing: .15em; text-align: center; writing-mode: vertical-rl; }
.observation-notes > header { grid-column: 2; padding: clamp(6rem, 10vw, 10rem) var(--edge); }
.observation-notes h2 { max-width: 8ch; margin-top: 1.2rem; font-size: clamp(3rem, 5.5vw, 6rem); font-weight: 580; letter-spacing: -.065em; line-height: .87; }
.note-roll { grid-column: 3; border-left: 1px solid rgba(8,13,18,.28); }
.note-roll article { min-height: 22rem; display: grid; grid-template-columns: 8rem 1fr .65fr; gap: 2rem; align-content: center; padding: 3rem var(--edge); border-bottom: 1px solid rgba(8,13,18,.28); }
.note-roll span { color: #647078; font: .58rem var(--mono); text-transform: uppercase; }
.note-roll h3 { max-width: 19ch; font-size: clamp(1.8rem, 3vw, 3.3rem); font-weight: 580; letter-spacing: -.05em; line-height: .95; }
.note-roll p { color: #3f494f; }
.note-roll a { grid-column: 2; justify-self: start; padding-bottom: .35rem; border-bottom: 1px solid var(--accent); font: 600 .59rem var(--mono); text-transform: uppercase; }
.note-roll a b { margin-left: 2rem; color: #a75d00; }

.last-light { min-height: 92svh; position: relative; display: grid; place-items: end start; overflow: hidden; background: var(--void); }
.last-light figure { position: absolute; inset: 0; }
.last-light figure::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(8,13,18,.93), rgba(8,13,18,.28) 66%), linear-gradient(0deg, rgba(8,13,18,.85), transparent 70%); }
.last-light figure img { filter: saturate(.78) brightness(.8); }
.last-light figure figcaption { position: absolute; z-index: 2; top: 5rem; right: var(--edge); }
.last-copy { position: relative; z-index: 3; display: grid; grid-template-columns: minmax(18rem, .8fr) minmax(18rem, .55fr); gap: 2rem 8vw; width: 100%; padding: clamp(6rem, 12vw, 12rem) var(--edge) clamp(3rem, 6vw, 6rem) calc(var(--rail) + var(--edge)); }
.last-copy h2 { grid-column: 1 / -1; max-width: 12ch; font-size: clamp(4rem, 8.5vw, 9rem); font-weight: 570; letter-spacing: -.075em; line-height: .8; }
.last-copy > p:last-of-type { grid-column: 2; color: #d6dde2; font-size: 1.05rem; }
.last-copy .line-link { grid-column: 2; }

.site-footer { min-height: 15rem; display: grid; grid-template-columns: 1fr 1.2fr 1fr 1.2fr; gap: 2rem 5vw; align-items: start; padding: 3rem var(--edge) 2rem calc(var(--rail) + var(--edge)); border-top: 1px solid var(--line); background: var(--void); }
.footer-wordmark { font-size: clamp(2.5rem, 4vw, 4.5rem); font-weight: 700; letter-spacing: -.07em; line-height: .8; text-transform: uppercase; }
.site-footer > p, .site-footer nav { color: var(--muted); font: .59rem/1.65 var(--mono); text-transform: uppercase; }
.site-footer nav { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem 1rem; }
.site-footer nav a:hover { color: var(--accent); }
.copyright { grid-column: 1 / -1; padding-top: 2rem; border-top: 1px solid var(--line); }

@keyframes celestial-drift {
  0%, 100% { transform: scale(1.02) translate3d(0, 0, 0); }
  50% { transform: scale(1.14) translate3d(-1.8%, .8%, 0); }
}

@media (max-width: 1100px) {
  .site-header { grid-template-columns: 1fr auto auto; }
  .descriptor { display: none; }
  .object-plate { grid-template-columns: var(--rail) .8fr 1.2fr; }
  .distance-list li { grid-template-columns: minmax(10rem, .7fr) 7rem 1fr; }
  .distance-list small { grid-column: 3; }
  .target { grid-template-columns: 9rem 1fr 1fr; }
  .mechanics { grid-template-columns: var(--rail) .8fr 1.2fr; }
  .orbit { width: 35vw; }
  .atlas-index article { grid-template-columns: 5rem 1fr .8fr; }
  .atlas-index small { grid-column: 2 / 4; }
  .observation-notes { grid-template-columns: var(--rail) .55fr 1.45fr; }
  .note-roll article { grid-template-columns: 6rem 1fr; }
  .note-roll p { grid-column: 2; }
  .site-footer { grid-template-columns: 1fr 1fr 1fr; }
  .source-note { grid-column: span 2; }
}

@media (max-width: 780px) {
  :root { --rail: 2.5rem; }
  .site-header { height: auto; min-height: 4.3rem; grid-template-columns: 1fr auto; gap: .45rem 1rem; padding-block: .7rem; }
  .site-header nav { grid-column: 1 / -1; grid-row: 2; justify-content: space-between; width: 100%; gap: .5rem; border-top: 1px solid var(--line); }
  .edition { grid-column: 2; grid-row: 1; }
  .edition { font-size: 0; }
  .edition b { margin: 0; font-size: .55rem; }
  .celestial-field { min-height: 55rem; grid-template-columns: var(--rail) 1fr; grid-template-rows: 6.7rem 1fr; }
  .field-image { grid-column: 2; grid-row: 1 / 3; }
  .field-image::after { background: linear-gradient(0deg, rgba(8,13,18,.94), rgba(8,13,18,.18) 75%), linear-gradient(90deg, rgba(8,13,18,.45), transparent); }
  .field-image figcaption { right: .7rem; bottom: .7rem; flex-direction: column; gap: .15rem; align-items: flex-end; }
  .meridian { grid-column: 1; grid-row: 1 / 3; }
  .meridian::before { top: 7.5rem; }
  .field-copy { grid-column: 2; grid-row: 2; grid-template-columns: 1fr; align-self: end; padding: 7rem 1rem 4.5rem; }
  .field-copy .signal, .field-copy h1, .standfirst, .field-copy .line-link { grid-column: 1; }
  .field-copy h1 { font-size: clamp(4rem, 17vw, 7rem); }
  .standfirst { max-width: 29rem; }
  .field-data { display: none; }

  .object-plate { grid-template-columns: var(--rail) 1fr; grid-template-rows: auto 32rem auto; min-height: auto; }
  .plate-code { grid-column: 1; grid-row: 1 / 4; }
  .plate-heading { grid-column: 2; grid-row: 1; padding: 6rem 1rem 3rem; }
  .plate-heading h2 { font-size: clamp(3rem, 13vw, 5.7rem); }
  .object-image { grid-column: 2; grid-row: 2; min-height: 0; }
  .object-data { grid-column: 2; grid-row: 3; margin: 3rem 1rem 5rem; }
  .object-data .wide { grid-template-columns: 1fr; }

  .scale-ledger { padding: 6rem 1rem 8rem calc(var(--rail) + 1rem); }
  .scale-ledger header, .unaided > header { grid-template-columns: 1fr; gap: 1.2rem; margin-bottom: 4rem; }
  .distance-list li { grid-template-columns: 1fr auto; gap: .5rem 1rem; min-height: 10rem; }
  .distance-list .value { grid-column: 1; }
  .distance-list .unit { grid-column: 2; }
  .distance-list strong, .distance-list small { grid-column: 1 / -1; }

  .ground-work { grid-template-columns: var(--rail) 1fr; }
  .ground-panorama { grid-column: 1 / -1; height: 32rem; }
  .ground-intro { grid-column: 2; padding: 6rem 1rem 4rem; }
  .dome-figure { grid-column: 2; min-height: 35rem; }
  .practice-lines { grid-column: 2; grid-template-columns: 1fr; }
  .practice-lines article { min-height: auto; padding: 2rem 1rem 3rem; }
  .practice-lines h3 { margin-top: 2.2rem; }

  .unaided { padding: 6rem 1rem 8rem calc(var(--rail) + 1rem); }
  .target { grid-template-columns: 5.5rem 1fr; min-height: auto; padding: 1.5rem 0 2.5rem; }
  .target > p:first-child { grid-column: 1; grid-row: 1 / 3; display: grid; align-content: space-between; }
  .target h3 { grid-column: 2; }
  .target > p:last-of-type { grid-column: 2; }
  .target:has(img) > p:last-of-type { padding-right: 0; }
  .target img { display: none; }

  .mechanics { min-height: auto; grid-template-columns: var(--rail) 1fr; grid-template-rows: auto 40rem; }
  .mechanics::before { grid-column: 1; grid-row: 1 / 3; }
  .mechanics-copy { grid-column: 2; padding: 6rem 1rem; }
  .phase-diagram { grid-column: 2; grid-row: 2; border-top: 1px solid var(--line); border-left: 0; }
  .orbit { width: min(64vw, 26rem); }

  .atlas { padding: 6rem 1rem 7rem calc(var(--rail) + 1rem); }
  .atlas > header { grid-template-columns: 1fr; gap: 1.5rem; margin-bottom: 4rem; }
  .atlas-index article { grid-template-columns: 3.5rem 1fr; gap: .7rem 1rem; min-height: 10rem; align-content: center; }
  .atlas-index p, .atlas-index small { grid-column: 2; }
  .atlas-index img { display: none; }
  .atlas-index article:has(img) small { padding-right: 0; }

  .observation-notes { grid-template-columns: var(--rail) 1fr; }
  .observation-notes::before { grid-column: 1; grid-row: 1 / 3; }
  .observation-notes > header { grid-column: 2; padding: 6rem 1rem; }
  .note-roll { grid-column: 2; border-left: 0; border-top: 1px solid rgba(8,13,18,.28); }
  .note-roll article { grid-template-columns: 1fr; min-height: auto; padding: 3.5rem 1rem; }
  .note-roll p, .note-roll a { grid-column: 1; }

  .last-light { min-height: 48rem; }
  .last-copy { grid-template-columns: 1fr; padding: 7rem 1rem 4rem calc(var(--rail) + 1rem); }
  .last-copy h2, .last-copy > p:last-of-type, .last-copy .line-link { grid-column: 1; }
  .last-copy h2 { font-size: clamp(3.8rem, 15vw, 7rem); }
  .site-footer { grid-template-columns: 1fr 1fr; padding: 3rem 1rem 2rem calc(var(--rail) + 1rem); }
  .footer-wordmark, .source-note, .copyright { grid-column: 1 / -1; }
}

@media (max-width: 430px) {
  .site-header nav { font-size: .51rem; }
  .field-copy { padding-bottom: 5.5rem; }
  .field-copy h1 { line-height: .78; }
  .object-data { grid-template-columns: 1fr; }
  .object-data div:nth-child(even) { padding-left: 0; border-left: 0; }
  .object-data .wide { grid-column: 1; }
  .distance-list .value { font-size: 3rem; }
  .ground-panorama { height: 27rem; }
  .mechanics { grid-template-rows: auto 33rem; }
  .orbit { width: 64vw; }
  .luna em { font-size: .45rem; }
  .site-footer { grid-template-columns: 1fr; }
  .site-footer > *, .footer-wordmark, .source-note, .copyright { grid-column: 1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}