:root {
  --night: #07101f;
  --night-2: #101a31;
  --ink: #13203a;
  --paper: #f2eadb;
  --paper-2: #e5dccb;
  --blue: #7dd8f2;
  --ember: #ff744c;
  --moon: #f5d98b;
  --muted: #9ba8bf;
  --line-dark: rgba(238, 242, 255, .22);
  --line-light: rgba(19, 32, 58, .24);
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --max: 1200px;
  --ease: cubic-bezier(.2,.72,.2,1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: #f6f2e8; background: var(--night); font: 1rem/1.68 var(--sans); }
img { display: block; max-width: 100%; }
a { color: inherit; text-underline-offset: .2em; }
a:hover { color: var(--blue); }
button { font: inherit; }
:focus-visible { outline: 3px solid var(--ember); outline-offset: 4px; }
.skip-link { position: fixed; z-index: 100; top: 1rem; left: 1rem; padding: .7rem 1rem; color: var(--night); background: var(--moon); transform: translateY(-180%); }
.skip-link:focus { transform: none; }
.wrap { width: min(calc(100% - 2.5rem), var(--max)); margin-inline: auto; }
.narrow { width: min(calc(100% - 2rem), 780px); margin-inline: auto; }

.site-header { position: relative; z-index: 20; border-bottom: 1px solid var(--line-dark); background: var(--night); }
.nav-row { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand { display: inline-flex; align-items: center; gap: .8rem; color: white; font-weight: 800; letter-spacing: -.03em; text-decoration: none; }
.brand-mark { position: relative; width: 45px; aspect-ratio: 1; border: 1px solid var(--blue); border-radius: 50%; }
.brand-mark::before { position: absolute; inset: 7px -8px; border: 1px solid var(--ember); border-radius: 50%; content: ""; transform: rotate(-22deg); }
.brand-mark::after { position: absolute; left: 50%; top: 50%; width: 7px; aspect-ratio: 1; border-radius: 50%; background: var(--moon); content: ""; transform: translate(-50%,-50%); }
.brand small { display: block; margin-top: .2rem; color: var(--muted); font: .62rem/1.2 var(--mono); letter-spacing: .16em; text-transform: uppercase; }
.site-nav { display: flex; gap: 1.25rem; align-items: center; }
.site-nav a { position: relative; padding: .55rem 0; color: #e5e9f2; font: 700 .78rem var(--mono); letter-spacing: .06em; text-decoration: none; text-transform: uppercase; }
.site-nav a::after { position: absolute; left: 0; right: 100%; bottom: 0; height: 2px; background: var(--ember); content: ""; transition: right .25s var(--ease); }
.site-nav a:hover::after, .site-nav a[aria-current="page"]::after { right: 0; }
.menu-button { display: none; padding: .55rem .75rem; border: 1px solid var(--blue); color: white; background: transparent; font-weight: 800; }

.kicker { display: flex; align-items: center; gap: .7rem; margin: 0 0 1rem; color: var(--blue); font: 700 .73rem/1.2 var(--mono); letter-spacing: .14em; text-transform: uppercase; }
.kicker::before { width: 38px; height: 1px; background: currentColor; content: ""; }
h1,h2,h3 { margin: 0; font-family: var(--serif); font-weight: 500; line-height: 1.02; letter-spacing: -.035em; }
h1 { font-size: clamp(3.4rem, 8vw, 8rem); }
h2 { font-size: clamp(2.3rem, 4.7vw, 4.5rem); }
h3 { font-size: clamp(1.45rem, 2vw, 2rem); }
p { margin: 0 0 1.15rem; }
.lead { max-width: 740px; color: #c4cde0; font: 1.28rem/1.55 var(--serif); }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: .75rem 1rem; border: 1px solid var(--ember); color: var(--night); background: var(--ember); font: 800 .78rem var(--mono); letter-spacing: .05em; text-decoration: none; text-transform: uppercase; transition: transform .2s var(--ease), background .2s var(--ease); }
.button:hover { color: var(--night); background: var(--moon); transform: translateY(-2px); }
.button.ghost { color: white; background: transparent; border-color: var(--line-dark); }
.button.ghost:hover { color: var(--night); background: var(--blue); }

.hero { position: relative; min-height: calc(100vh - 82px); display: grid; align-items: end; overflow: hidden; }
.hero-media { position: absolute; inset: 0; }
.hero-media::after { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(7,16,31,.94) 0%, rgba(7,16,31,.62) 52%, rgba(7,16,31,.08) 100%), linear-gradient(0deg, var(--night), transparent 45%); content: ""; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-content { position: relative; z-index: 2; padding: clamp(5rem, 12vh, 9rem) 0 5rem; }
.hero-title { max-width: 950px; }
.hero-title em { color: var(--moon); font-style: italic; }
.hero-grid { display: grid; grid-template-columns: 1.25fr .55fr; gap: clamp(2rem, 8vw, 8rem); align-items: end; }
.hero-side { padding: 1.2rem 0 0 1.2rem; border-left: 1px solid var(--line-dark); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.5rem; }
.coordinates { position: absolute; right: 1.25rem; top: 50%; z-index: 3; color: #e8edf7; font: .65rem var(--mono); letter-spacing: .16em; writing-mode: vertical-rl; }

.signal-bar { border-block: 1px solid var(--line-dark); background: var(--night-2); }
.signal-grid { display: grid; grid-template-columns: repeat(4,1fr); }
.signal { min-height: 128px; padding: 1.2rem; border-right: 1px solid var(--line-dark); }
.signal:last-child { border-right: 0; }
.signal b { display: block; margin-bottom: .6rem; color: var(--ember); font: 400 2.2rem/1 var(--serif); }
.signal span { color: #aeb9cf; font: .72rem/1.5 var(--mono); text-transform: uppercase; }

.section { padding: clamp(4.5rem, 9vw, 8rem) 0; }
.paper { color: var(--ink); background: var(--paper); }
.paper a:hover { color: #9d2f19; }
.paper .kicker { color: #a83b24; }
.section-head { display: grid; grid-template-columns: 1fr .55fr; gap: 3rem; align-items: end; margin-bottom: 2.5rem; }
.section-head p { margin: 0; color: #52617c; }
.note-grid { display: grid; grid-template-columns: repeat(12,1fr); gap: 1rem; }
.note-card { grid-column: span 6; position: relative; min-height: 520px; overflow: hidden; border: 1px solid var(--line-light); background: #e9e0d0; }
.note-card picture img { width: 100%; height: 330px; object-fit: cover; filter: saturate(.78) contrast(1.02); transition: transform .6s var(--ease); }
.note-card:hover picture img { transform: scale(1.025); }
.note-card:nth-child(3) { grid-column: span 7; }
.note-card:nth-child(4) { grid-column: span 5; }
.note-copy { padding: 1.35rem; }
.note-meta { display: flex; justify-content: space-between; gap: 1rem; margin-bottom: .8rem; color: #62708a; font: 700 .67rem var(--mono); letter-spacing: .09em; text-transform: uppercase; }
.note-card h3 a { text-decoration: none; }
.note-card h2 { font-size: clamp(1.65rem, 2.4vw, 2.35rem); }
.note-card h2 a { text-decoration: none; }
.note-card p { margin-top: .75rem; color: #52617c; }
.corner-index { position: absolute; z-index: 2; right: .7rem; top: .7rem; display: grid; place-items: center; width: 42px; aspect-ratio: 1; border-radius: 50%; color: var(--night); background: var(--moon); font: 700 .68rem var(--mono); }

.orbit-section { position: relative; overflow: hidden; }
.orbit-section::before { position: absolute; right: -180px; top: 50%; width: 620px; aspect-ratio: 1; border: 1px solid var(--line-dark); border-radius: 50%; content: ""; transform: translateY(-50%); box-shadow: 0 0 0 95px rgba(125,216,242,.03), 0 0 0 190px rgba(255,116,76,.025); }
.method-grid { position: relative; z-index: 1; display: grid; grid-template-columns: .7fr 1.2fr; gap: clamp(3rem, 9vw, 9rem); }
.moon-diagram { position: sticky; top: 2rem; display: grid; place-items: center; min-height: 470px; border: 1px solid var(--line-dark); background: radial-gradient(circle at 48% 43%, var(--moon) 0 20%, transparent 20.5%), repeating-radial-gradient(circle at 48% 43%, transparent 0 46px, rgba(125,216,242,.17) 47px 48px); }
.moon-diagram span { position: absolute; right: 1rem; bottom: 1rem; max-width: 180px; color: #aeb9cf; font: .72rem/1.5 var(--mono); text-transform: uppercase; }
.step-list { counter-reset: step; }
.step { display: grid; grid-template-columns: 60px 1fr; gap: 1rem; padding: 1.7rem 0; border-top: 1px solid var(--line-dark); }
.step::before { counter-increment: step; content: "0" counter(step); color: var(--ember); font: 1.6rem/1 var(--mono); }
.step p { margin: .7rem 0 0; color: #aeb9cf; }

.page-hero { padding: clamp(4.5rem, 10vw, 8rem) 0 4rem; border-bottom: 1px solid var(--line-dark); background: radial-gradient(circle at 82% 30%, rgba(125,216,242,.1), transparent 24%), var(--night); }
.page-hero .lead { margin-top: 1.4rem; }
.breadcrumbs { margin-bottom: 2rem; color: var(--muted); font: .68rem var(--mono); letter-spacing: .09em; text-transform: uppercase; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: .55rem; margin: 0; padding: 0; list-style: none; }
.breadcrumbs li + li::before { margin-right: .55rem; color: var(--ember); content: "//"; }
.article-shell { display: grid; grid-template-columns: minmax(0,1fr) 280px; gap: clamp(2rem, 7vw, 6rem); align-items: start; }
.article-main { min-width: 0; }
.article-main .lead { margin: 1.2rem 0 1.5rem; }
.article-meta { display: flex; flex-wrap: wrap; gap: .7rem 1.4rem; margin: 1.5rem 0; color: var(--muted); font: .68rem var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.article-image { margin: 2rem 0 2.5rem; }
.article-image img { width: 100%; max-height: 690px; object-fit: cover; border: 1px solid var(--line-dark); }
.image-credit { margin-top: .6rem; color: var(--muted); font: .68rem/1.5 var(--mono); }
.prose { font: 1.08rem/1.86 var(--serif); }
.prose h2 { margin: 3.3rem 0 1rem; color: white; font-size: clamp(2rem,3.5vw,3rem); }
.prose h3 { margin: 2rem 0 .8rem; color: white; font-size: 1.55rem; }
.prose p { color: #d0d6e2; }
.prose strong { color: white; }
.prose a { color: var(--blue); font-weight: 700; }
.prose blockquote { margin: 2rem 0; padding: 1.4rem; border-block: 1px solid var(--line-dark); color: var(--moon); font-size: 1.4rem; font-style: italic; }
.prose ul,.prose ol { padding-left: 1.4rem; color: #d0d6e2; }
.field-box { margin: 2rem 0; padding: 1.4rem; border: 1px solid var(--line-dark); background: var(--night-2); font-family: var(--sans); font-size: .94rem; }
.field-box h3 { margin: 0 0 .8rem; color: var(--blue); font: 700 .78rem var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.article-aside { position: sticky; top: 2rem; padding: 1.2rem; border: 1px solid var(--line-dark); }
.article-aside h2 { margin-bottom: .8rem; color: var(--moon); font: 700 .78rem var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.article-aside ul { margin: 0; padding: 0; list-style: none; }
.article-aside li { padding: .75rem 0; border-top: 1px solid var(--line-dark); color: #d1d7e3; font-size: .87rem; }
.article-aside p { margin-top: 1rem; color: var(--muted); font-size: .78rem; }

.split { display: grid; grid-template-columns: 1.1fr .9fr; border: 1px solid var(--line-light); background: #ebe2d3; }
.split picture img { width: 100%; height: 100%; min-height: 460px; object-fit: cover; }
.split-copy { padding: clamp(2rem,5vw,4.5rem); }
.split-copy p { color: #53617a; }
.split-copy h2 { margin-bottom: 1rem; }
.practice-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--line-dark); border: 1px solid var(--line-dark); }
.practice-card { min-height: 270px; padding: 1.35rem; background: var(--night); }
.practice-card b { display: block; margin-bottom: 3rem; color: var(--ember); font: 1rem var(--mono); }
.practice-card p { color: #aeb9cf; }
.source-list { margin: 2rem 0; padding: 0; list-style: none; }
.source-list li { padding: 1.1rem 0; border-top: 1px solid currentColor; border-color: var(--line-dark); }
.paper .source-list li { border-color: var(--line-light); }
.source-list strong { display: block; margin-bottom: .3rem; font: 1.2rem var(--serif); }
.source-list span { color: inherit; opacity: .75; font-size: .86rem; }
.legal h2 { margin: 2.8rem 0 .8rem; font-size: 2rem; }
.legal h3 { margin: 1.7rem 0 .6rem; font-size: 1.35rem; }
.legal p,.legal li { color: #52617c; }
.callout { padding: clamp(2rem,5vw,4rem); border: 1px solid var(--line-dark); background: linear-gradient(120deg, rgba(125,216,242,.11), rgba(255,116,76,.08)); }
.callout h2 { max-width: 880px; margin-bottom: 1rem; }
.callout p { max-width: 680px; color: #b6c0d4; }
.paper-callout { color: var(--ink); border-color: var(--line-light); }
.paper-callout p { color: #52617c; }
.lost { min-height: 65vh; display: grid; place-items: center; text-align: center; }
.lost .lead { margin: 1.5rem auto 2rem; }
.center { justify-content: center; }

.site-footer { padding: 4rem 0 1.5rem; border-top: 1px solid var(--line-dark); background: #040a14; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .6fr .6fr; gap: 2rem; }
.footer-intro { max-width: 430px; margin-top: 1rem; color: var(--muted); }
.footer-title { margin-bottom: .8rem; color: var(--blue); font: .68rem var(--mono); letter-spacing: .12em; text-transform: uppercase; }
.footer-links { margin: 0; padding: 0; list-style: none; }
.footer-links li { margin: .48rem 0; }
.footer-links a { color: #d8deea; font-size: .88rem; }
.footer-bottom { display: flex; justify-content: space-between; gap: 1rem; margin-top: 3rem; padding-top: 1rem; border-top: 1px solid var(--line-dark); color: #7f8ba3; font: .66rem var(--mono); letter-spacing: .05em; text-transform: uppercase; }

.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s var(--ease), transform .65s var(--ease); }
.js .reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 880px) {
  .menu-button { display: inline-flex; }
  .site-nav { position: absolute; left: 1.25rem; right: 1.25rem; top: calc(100% + 1px); display: none; padding: .8rem; border: 1px solid var(--line-dark); background: var(--night); box-shadow: 0 25px 55px rgba(0,0,0,.35); }
  .site-nav.is-open { display: grid; }
  .site-nav a { padding: .75rem; }
  .hero-grid,.section-head,.method-grid,.article-shell,.split { grid-template-columns: 1fr; }
  .hero-side { max-width: 660px; }
  .coordinates { display: none; }
  .moon-diagram,.article-aside { position: relative; top: auto; }
  .moon-diagram { min-height: 340px; }
  .practice-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1/-1; }
}

@media (max-width: 600px) {
  .wrap,.narrow { width: min(calc(100% - 1.3rem), var(--max)); }
  .nav-row { min-height: 72px; }
  .brand { font-size: .92rem; }
  .brand small { font-size: .55rem; }
  .brand-mark { width: 38px; }
  .hero { min-height: calc(100svh - 72px); }
  .hero-content { padding-bottom: 2.5rem; }
  .hero-media::after { background: linear-gradient(0deg, var(--night) 0%, rgba(7,16,31,.74) 58%, rgba(7,16,31,.2) 100%); }
  .signal-grid { grid-template-columns: 1fr 1fr; }
  .signal:nth-child(2) { border-right: 0; }
  .signal:nth-child(-n+2) { border-bottom: 1px solid var(--line-dark); }
  .note-card,.note-card:nth-child(3),.note-card:nth-child(4) { grid-column: 1/-1; min-height: 0; }
  .note-card picture img { height: 270px; }
  .practice-grid,.footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
  .footer-bottom { display: block; }
  .footer-bottom span { display: block; margin-top: .5rem; }
}

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