:root {
  --black: #030608;
  --ink: #071119;
  --white: #edf3f1;
  --cyan: #83d9ed;
  --copper: #e08a55;
  --steel: #9ba9ae;
  --line: rgba(237,243,241,.17);
  --mono: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  --sans: "Arial Narrow", "Aptos Narrow", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--black); color: var(--white); font-family: var(--sans); overflow-x: hidden; }
body::selection { background: var(--cyan); color: var(--black); }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 5px; }
.skip-link { position: fixed; left: 1rem; top: 1rem; z-index: 100; padding: .8rem 1rem; background: var(--cyan); color: var(--black); transform: translateY(-150%); }
.skip-link:focus { transform: none; }
.noise { position: fixed; pointer-events: none; z-index: 90; inset: 0; opacity: .055; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.75'/%3E%3C/svg%3E"); }

.topbar { position: absolute; inset: 0 0 auto; z-index: 10; min-height: 6.5rem; display: grid; grid-template-columns: auto 1fr auto auto; gap: clamp(1.5rem, 4vw, 5rem); align-items: center; padding: 1.25rem clamp(1rem, 3vw, 3.5rem); border-bottom: 1px solid var(--line); }
.logo { display: flex; align-items: baseline; text-decoration: none; font-size: 1.05rem; font-weight: 900; letter-spacing: -.05em; }
.logo i { color: var(--copper); font-style: normal; padding: 0 .25rem; }
.topbar > p { margin: 0; font-family: var(--mono); font-size: .55rem; line-height: 1.55; letter-spacing: .1em; color: var(--steel); }
.topbar nav { display: flex; gap: clamp(1rem, 2.5vw, 3rem); }
.topbar nav a, .calendar-link { font-family: var(--mono); font-size: .59rem; letter-spacing: .12em; text-transform: uppercase; text-decoration: none; }
.topbar nav a { color: var(--steel); }
.topbar nav a:hover { color: var(--cyan); }
.calendar-link { border: 1px solid var(--line); padding: .85rem 1rem; }
.calendar-link span { color: var(--cyan); padding-left: .8rem; }

.hero { position: relative; isolation: isolate; min-height: 100svh; display: grid; align-items: end; padding: 10rem clamp(1rem, 5vw, 6rem) 4rem; overflow: hidden; }
.hero-art { position: absolute; z-index: -4; inset: 0; background: url("assets/corona.webp") 64% center / cover no-repeat; transform: scale(1.03); }
.hero::before { content: ""; position: absolute; z-index: -3; inset: 0; background: linear-gradient(90deg, rgba(3,6,8,.96) 0%, rgba(3,6,8,.69) 39%, rgba(3,6,8,.12) 72%), linear-gradient(0deg, rgba(3,6,8,.78), transparent 45%), linear-gradient(180deg, rgba(3,6,8,.55), transparent 25%); }
.hero-grid { position: absolute; z-index: -2; inset: 0; opacity: .15; background-image: linear-gradient(rgba(255,255,255,.22) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.22) 1px, transparent 1px); background-size: 9vw 9vw; mask-image: linear-gradient(90deg, black, transparent 70%); }
.hero-copy { align-self: center; max-width: 56rem; margin-bottom: 8rem; }
.kicker, .section-code { font-family: var(--mono); font-size: .61rem; letter-spacing: .16em; text-transform: uppercase; color: var(--steel); }
.kicker span { display: inline-block; width: .5rem; height: .5rem; margin-right: .6rem; background: var(--copper); border-radius: 50%; box-shadow: 0 0 16px var(--copper); }
.hero h1 { margin: 1.5rem 0 0; text-transform: uppercase; font-size: clamp(4.1rem, 10vw, 10.5rem); line-height: .72; letter-spacing: -.08em; font-weight: 900; }
.hero h1 span, .hero h1 strong { display: block; }
.hero h1 strong { color: transparent; -webkit-text-stroke: 1px var(--white); font-weight: 900; }
.hero-lead { max-width: 29rem; margin: 2rem 0 0 1rem; padding-left: 1rem; border-left: 1px solid var(--copper); color: rgba(237,243,241,.66); line-height: 1.6; font-size: .93rem; }
.hero-lead b { color: var(--white); }
.coordinate { position: absolute; z-index: 1; font-family: var(--mono); font-size: .53rem; letter-spacing: .15em; color: var(--steel); }
.coordinate-a { right: 3%; top: 19%; }
.coordinate-b { right: 3%; top: 24%; }
.live-badge { position: absolute; right: 3.5rem; bottom: 10rem; display: flex; gap: .65rem; align-items: center; font-family: var(--mono); font-size: .57rem; text-transform: uppercase; letter-spacing: .13em; }
.live-badge i { width: .48rem; aspect-ratio: 1; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 15px var(--cyan); animation: pulse 1.8s ease-in-out infinite; }
.hero-countdown { position: absolute; left: clamp(1rem, 5vw, 6rem); right: clamp(1rem, 5vw, 6rem); bottom: 2rem; display: grid; grid-template-columns: 1fr auto; align-items: end; border-top: 1px solid var(--line); padding-top: 1.2rem; }
.hero-countdown > p { margin: 0; font-family: var(--mono); font-size: .59rem; color: var(--steel); letter-spacing: .1em; text-transform: uppercase; }
.digits { display: flex; gap: .6rem; align-items: baseline; font-family: var(--mono); }
.digits > div { min-width: 3.25rem; text-align: center; }
.digits strong { display: inline-block; font-size: clamp(1.8rem, 3vw, 3.2rem); font-weight: 400; font-variant-numeric: tabular-nums; letter-spacing: -.08em; }
.digits small { margin-left: .2rem; font-size: .47rem; color: var(--cyan); }
.digits > span { color: var(--copper); }
.enter { position: absolute; right: 3.5rem; bottom: 3rem; display: none; }

.ticker { overflow: hidden; border-block: 1px solid var(--line); background: var(--cyan); color: var(--black); padding: .7rem 0; font-family: var(--mono); font-size: .6rem; font-weight: 700; letter-spacing: .15em; white-space: nowrap; }
.ticker div { width: max-content; animation: ticker 20s linear infinite; }

.signal { padding: clamp(6rem, 12vw, 12rem) clamp(1rem, 6vw, 7rem); background: var(--white); color: var(--black); }
.signal-head { display: grid; grid-template-columns: .35fr 1.15fr .5fr; gap: 3rem; align-items: end; }
.signal .section-code, .sequence .section-code { color: #4f6066; }
.signal h2, .sequence h2, .direction h2, .protocol h2, .finale h2 { margin: 0; text-transform: uppercase; font-size: clamp(3.7rem, 8vw, 8.8rem); line-height: .78; letter-spacing: -.075em; }
.signal h2 em { color: var(--copper); font-style: normal; }
.signal-head > p:last-child { margin: 0; max-width: 26rem; line-height: 1.65; color: #45545a; }
.signal-stage { --progress: 0; position: relative; min-height: min(56vw, 44rem); margin-top: 6rem; border: 1px solid rgba(3,6,8,.28); overflow: hidden; background: color-mix(in srgb, var(--white) calc(100% - var(--progress) * 92%), var(--black)); transition: background .08s linear; }
.stage-horizon { position: absolute; inset: 60% 0 0; background: linear-gradient(180deg, transparent, rgba(224,138,85,.3)); border-top: 1px solid rgba(3,6,8,.18); }
.stage-eclipse { position: absolute; left: 50%; top: 47%; width: min(23vw, 18rem); aspect-ratio: 1; transform: translate(-50%, -50%); border: 1px solid rgba(3,6,8,.4); border-radius: 50%; box-shadow: 0 0 calc(var(--progress) * 60px) rgba(131,217,237,.75); }
.stage-eclipse i { position: absolute; inset: calc((1 - var(--progress)) * 48%); border-radius: 50%; background: var(--black); transition: inset .08s linear; }
.stage-copy { position: absolute; left: 2rem; top: 2rem; display: flex; flex-direction: column; font-family: var(--mono); }
.stage-copy span, .stage-copy small { font-size: .55rem; letter-spacing: .12em; text-transform: uppercase; }
.stage-copy strong { font-size: clamp(4rem, 9vw, 9rem); font-weight: 400; line-height: .9; letter-spacing: -.1em; font-variant-numeric: tabular-nums; }
.sim-track { position: absolute; left: 2rem; right: 2rem; bottom: 5.5rem; height: 2px; background: rgba(3,6,8,.22); }
.sim-track i { display: block; width: calc(var(--progress) * 100%); height: 100%; background: var(--copper); }
#simulate { position: absolute; right: 2rem; bottom: 1.7rem; min-width: 14rem; min-height: 2.8rem; display: flex; justify-content: space-between; align-items: center; border: 1px solid var(--black); background: transparent; font: 700 .61rem var(--mono); letter-spacing: .1em; text-transform: uppercase; cursor: pointer; }
#simulate:hover { background: var(--black); color: var(--white); }
#simulate b { color: var(--copper); }
.sim-note { max-width: 36rem; margin: .9rem 0 0 auto; font: .55rem/1.5 var(--mono); color: #59666a; }

.sequence { padding: clamp(6rem, 12vw, 12rem) clamp(1rem, 6vw, 7rem); background: var(--ink); }
.sequence header { display: grid; grid-template-columns: .35fr 1.65fr; gap: 3rem; margin-bottom: 6rem; }
.sequence h2 { max-width: 70rem; }
.phase-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.phase-list li { min-height: 8.5rem; display: grid; grid-template-columns: .16fr .4fr .75fr .15fr; gap: 2rem; align-items: center; border-bottom: 1px solid var(--line); transition: background .25s, padding .25s; }
.phase-list li:hover { padding-inline: 1rem; background: rgba(255,255,255,.025); }
.phase-no { font: .6rem var(--mono); color: var(--cyan); letter-spacing: .12em; }
.phase-list time { font: 400 clamp(2rem, 4vw, 4.2rem) var(--mono); letter-spacing: -.08em; font-variant-numeric: tabular-nums; }
.phase-list strong { text-transform: uppercase; font-size: .82rem; letter-spacing: .08em; }
.phase-list p { margin: .5rem 0 0; font-size: .76rem; color: var(--steel); }
.max-row { background: rgba(131,217,237,.035); }
.mini-sun { justify-self: end; width: 3.3rem; aspect-ratio: 1; border: 1px solid var(--white); border-radius: 50%; position: relative; overflow: hidden; }
.mini-sun::after { content: ""; position: absolute; width: 100%; aspect-ratio: 1; border-radius: 50%; background: var(--ink); }
.mini-sun.s1::after { left: 70%; }
.mini-sun.total { box-shadow: 0 0 20px var(--cyan); background: var(--ink); border-color: var(--cyan); }
.mini-sun.total::after { display: none; }
.mini-sun.s3::after { right: 25%; }
.mini-sun.s4::after { right: 70%; }
.data-note { max-width: 38rem; margin: 1.5rem 0 0 auto; font: .55rem/1.55 var(--mono); color: var(--steel); }

.direction { min-height: 70rem; display: grid; grid-template-columns: 1.1fr .9fr; background: var(--copper); color: var(--black); }
.bearing-visual { position: relative; overflow: hidden; border-right: 1px solid rgba(3,6,8,.28); }
.bearing-visual::before { content: ""; position: absolute; width: 70%; aspect-ratio: 1; left: 15%; top: 15%; border: 1px solid rgba(3,6,8,.28); border-radius: 50%; box-shadow: 0 0 0 6vw rgba(3,6,8,.035), 0 0 0 12vw rgba(3,6,8,.025); }
.bearing-visual span { position: absolute; left: 50%; bottom: 0; width: 1px; height: 64%; background: var(--black); transform-origin: bottom; transform: rotate(281deg); }
.bearing-visual i { position: absolute; width: .8rem; aspect-ratio: 1; background: var(--cyan); border-radius: 50%; left: 26%; top: 25%; box-shadow: 0 0 20px var(--cyan); }
.bearing-visual b { position: absolute; left: 8%; bottom: 7%; font: 400 clamp(5rem, 11vw, 11rem) var(--mono); letter-spacing: -.1em; }
.direction-copy { align-self: center; padding: clamp(4rem, 8vw, 9rem); }
.direction-copy .section-code { color: rgba(3,6,8,.6); }
.direction-copy p:not(.section-code) { max-width: 31rem; margin: 2.5rem 0; line-height: 1.7; }
.direction dl { border-top: 1px solid rgba(3,6,8,.28); }
.direction dl div { display: flex; justify-content: space-between; align-items: baseline; padding: 1rem 0; border-bottom: 1px solid rgba(3,6,8,.28); }
.direction dt { font: .58rem var(--mono); text-transform: uppercase; letter-spacing: .12em; }
.direction dd { margin: 0; font: 1.6rem var(--mono); }

.protocol { padding: clamp(6rem, 12vw, 12rem) clamp(1rem, 6vw, 7rem); display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(4rem, 9vw, 10rem); }
.protocol h2 em { color: var(--cyan); font-style: normal; }
.protocol-list { border-top: 1px solid var(--line); }
.protocol article { display: grid; grid-template-columns: 3rem .45fr 1fr; gap: 1.5rem; align-items: baseline; padding: 1.6rem 0; border-bottom: 1px solid var(--line); }
.protocol article span { font: .55rem var(--mono); color: var(--copper); }
.protocol h3 { margin: 0; text-transform: uppercase; font-size: .78rem; letter-spacing: .07em; }
.protocol article p { margin: 0; color: var(--steel); font-size: .78rem; line-height: 1.6; }
.protocol-links { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 2rem; }
.protocol-links a { display: flex; min-width: 13rem; justify-content: space-between; border: 1px solid var(--line); padding: 1rem; text-decoration: none; font: .58rem var(--mono); text-transform: uppercase; letter-spacing: .1em; }
.protocol-links a:hover { border-color: var(--cyan); }
.protocol-links span { color: var(--cyan); }

.finale { min-height: 82svh; display: grid; place-content: center; justify-items: center; text-align: center; padding: 4rem 1rem; background: var(--cyan); color: var(--black); }
.finale p { margin: 0 0 1rem; font: .61rem var(--mono); letter-spacing: .18em; }
.finale h2 { font-size: clamp(4.2rem, 13vw, 14rem); }
.finale a { width: min(36rem, 92vw); display: flex; justify-content: space-between; margin-top: 3rem; padding: 1.2rem 0; border-block: 1px solid; text-decoration: none; font: .64rem var(--mono); text-transform: uppercase; letter-spacing: .1em; }

footer { min-height: 10rem; display: grid; grid-template-columns: 1fr 1fr 1fr; align-items: end; gap: 2rem; padding: 2.5rem clamp(1rem, 3vw, 3.5rem); border-top: 1px solid var(--line); font: .55rem/1.5 var(--mono); color: var(--steel); }
footer p { margin: 0; text-align: center; }
footer p:last-child { text-align: right; }
.noscript { position: fixed; z-index: 99; left: 1rem; right: 1rem; bottom: 1rem; padding: 1rem; background: var(--cyan); color: var(--black); text-align: center; }

@keyframes pulse { 50% { opacity: .3; transform: scale(.75); } }
@keyframes ticker { to { transform: translateX(-50%); } }

@media (max-width: 900px) {
  .topbar { grid-template-columns: auto 1fr; }
  .topbar > p { justify-self: end; }
  .topbar nav { grid-row: 2; grid-column: 1 / -1; justify-content: space-between; }
  .topbar nav a { min-height: 44px; display: inline-flex; align-items: center; padding: .5rem .25rem; }
  .calendar-link { display: none; }
  .hero { padding-top: 10rem; }
  .hero-art { background-position: 70% center; }
  .coordinate, .live-badge { display: none; }
  .hero-copy { margin-bottom: 10rem; }
  .hero-countdown { grid-template-columns: 1fr; gap: 1rem; }
  .digits { justify-content: space-between; gap: .1rem; }
  .digits > div { min-width: 0; }
  .signal-head, .sequence header, .protocol { grid-template-columns: 1fr; }
  .signal-head > p:last-child { margin-left: auto; }
  .phase-list li { grid-template-columns: .16fr .5fr 1fr; gap: 1rem; }
  .mini-sun { display: none; }
  .direction { grid-template-columns: 1fr; min-height: auto; }
  .bearing-visual { min-height: 38rem; border-right: 0; border-bottom: 1px solid rgba(3,6,8,.28); }
  footer { grid-template-columns: 1fr; }
  footer p, footer p:last-child { text-align: left; }
}

@media (max-width: 540px) {
  .topbar nav a { font-size: .65rem; }
  .hero h1 { font-size: 18vw; }
  .hero-lead { max-width: 90%; }
  .digits strong { font-size: 8vw; }
  .signal h2, .sequence h2, .direction h2, .protocol h2 { font-size: 15vw; }
  .signal-stage { min-height: 34rem; }
  .stage-eclipse { width: 11rem; }
  .stage-copy { left: 1rem; top: 1rem; }
  .sim-track { left: 1rem; right: 1rem; }
  #simulate { left: 1rem; right: 1rem; width: calc(100% - 2rem); }
  .phase-list li { grid-template-columns: .2fr 1fr; padding: 1.3rem 0; }
  .phase-list li > div { grid-column: 2; }
  .protocol article { grid-template-columns: 2.5rem 1fr; }
  .protocol article p { grid-column: 2; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .ticker div { transform: none; }
}




body { padding-bottom: 88px; }

.acquisition-rail {
  position: fixed;
  inset: auto 0 0;
  z-index: 100;
  min-height: 88px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  padding: .8rem clamp(1rem, 3vw, 3.5rem);
  border-top: 2px solid var(--black);
  background: var(--copper);
  box-shadow: 0 -14px 48px rgba(0,0,0,.42);
  color: var(--black);
}
.acquisition-rail > span { width: .9rem; aspect-ratio: 1; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 7px rgba(131,217,237,.22); }
.acquisition-rail p { min-width: 0; margin: 0; }
.acquisition-rail strong, .acquisition-rail small { display: block; }
.acquisition-rail strong { font-family: var(--sans); font-size: clamp(1rem, 1.8vw, 1.4rem); font-weight: 950; letter-spacing: -.025em; }
.acquisition-rail small { margin-top: .18rem; font: 700 .58rem var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.acquisition-rail a { min-height: 54px; display: inline-flex; align-items: center; gap: 1rem; padding: 0 1.25rem; background: var(--black); color: var(--cyan); font: 800 .64rem var(--mono); letter-spacing: .07em; text-decoration: none; text-transform: uppercase; }
.acquisition-rail a:hover { background: var(--cyan); color: var(--black); }
.acquisition-rail a:focus-visible { outline: 3px solid white; outline-offset: 3px; }
.acquisition-rail b { font-size: 1.15rem; }

@media (max-width: 700px) {
  body { padding-bottom: 142px; }
  .acquisition-rail { min-height: 0; grid-template-columns: auto 1fr; gap: .65rem .8rem; padding: .7rem 14px; }
  .acquisition-rail a { grid-column: 1 / -1; justify-content: space-between; width: 100%; }
  .acquisition-rail small { font-size: .52rem; }
}

@media print {
  body { padding-bottom: 0; }
  .acquisition-rail { display: none; }
}