:root { color-scheme: light; --sky: #e8eeec; --ink: #263b3e; --muted: #5e7375; --line: #b7c6c4; --paper: #f5f4ed; font-family: Arial, Helvetica, sans-serif; color: var(--ink); background: var(--sky); }
* { box-sizing: border-box; }
body { margin: 0; overflow-x: clip; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; cursor: pointer; }
button:disabled { cursor: wait; }
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 5px; }
a:focus-visible, button:focus-visible, canvas:focus-visible { outline: 2px solid var(--ink); outline-offset: 6px; }
[hidden] { display: none !important; }
.site-shell { max-width: 1920px; margin: auto; padding: 0 48px; }
.header { height: 104px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); position: relative; z-index: 3; }
.wordmark { font-size: 25px; font-weight: 700; letter-spacing: -1.1px; }
.brand-dot { color: #be7418; }
.header-right { display: flex; align-items: center; gap: 56px; }
.edition, .contact { font-size: 12px; }
.edition { color: var(--muted); }
.contact { display: flex; align-items: center; gap: 25px; }
.contact span { font-size: 20px; }
.main { position: relative; min-height: 660px; height: calc(100svh - 174px); max-height: 1100px; isolation: isolate; }
.intro { position: relative; z-index: 2; padding-top: clamp(55px, 10vh, 130px); width: 42%; pointer-events: none; }
.intro button, .intro a { pointer-events: auto; }
.eyebrow { margin: 0; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 10px; font-weight: 500; text-transform: uppercase; letter-spacing: 1.8px; }
.status-dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: #628b72; margin: 0 8px 1px 0; }
h1 { font-size: clamp(58px, 6.7vw, 106px); font-weight: 400; letter-spacing: -.075em; line-height: 1.06; margin: 32px 0 25px; }
h1 em { font-family: Georgia, 'Times New Roman', serif; font-weight: 400; letter-spacing: -.06em; }
.intro-copy { font-size: 16px; line-height: 1.75; color: var(--muted); margin: 0 0 28px; }
.launch { background: var(--ink); color: var(--paper); border: 1px solid var(--ink); padding: 18px 22px; min-width: 188px; display: inline-flex; align-items: center; justify-content: space-between; gap: 35px; border-radius: 3px; font-size: 13px; }
.launch:hover:not(:disabled) { background: #426067; border-color: #426067; }
.launch:disabled { opacity: .65; }
.launch svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.4; }
.invitation { color: var(--muted); font-size: 10px; margin-top: 14px; }
.sky-disc { position: absolute; width: min(48vw, 680px); aspect-ratio: 1; border: 1px solid #c7d4d0; border-radius: 50%; right: 4%; top: 6%; background: radial-gradient(circle at 48% 44%, #f8f6e350, #d9e6df45 65%, transparent 66%); z-index: -1; }
.sky-disc::after { content: ''; position: absolute; inset: 12%; border: 1px dashed #cad6d280; border-radius: 50%; }
.sky-lines { position: absolute; left: 32%; right: 0; top: 42%; height: 1px; background: #becdca70; transform: rotate(-18deg); z-index: -1; }
.sky-lines::after { content: ''; position: absolute; top: 130px; left: 50px; right: 100px; height: 1px; background: #becdca50; }
.flight-view { position: absolute; inset: 0 -32px 70px 27%; z-index: 1; }
#sky { width: 100%; height: 100%; display: block; touch-action: pan-y; }
.plane-fallback { width: 100%; height: 100%; object-fit: contain; }
.aircraft-note { position: absolute; right: 7%; bottom: 125px; font-size: 10px; line-height: 1.8; color: var(--muted); display: flex; gap: 16px; align-items: flex-start; z-index: 0; }
.aircraft-note strong { font-weight: 500; color: var(--ink); font-size: 12px; }
.note-line { height: 25px; width: 40px; border-left: 1px solid var(--line); border-top: 1px solid var(--line); transform: skew(25deg); }
.compass { position: absolute; right: 0; top: 38%; display: flex; flex-direction: column; align-items: center; gap: 15px; font: 9px ui-monospace, monospace; color: var(--muted); }
.compass i { width: 1px; height: 54px; background: var(--line); position: relative; }
.compass i::after { content: ''; height: 8px; width: 8px; border-top: 1px solid var(--muted); border-right: 1px solid var(--muted); position: absolute; top: 0; left: -3px; transform: rotate(-45deg); }
.scene-toolbar { position: absolute; bottom: 26px; left: 0; right: 0; display: flex; justify-content: space-between; align-items: center; z-index: 4; }
.scene-caption { font: 10px ui-monospace, monospace; color: var(--muted); }
.scene-options { display: flex; align-items: center; gap: 17px; }
.icon-button { display: inline-flex; align-items: center; gap: 8px; border: 0; color: var(--ink); background: none; padding: 10px 0; min-height: 44px; font-size: 11px; }
.icon-button:hover { color: #996022; }
.icon-button svg { width: 18px; height: 18px; stroke: currentColor; stroke-width: 1.2; fill: none; }
.toolbar-divider { height: 15px; width: 1px; background: var(--line); }
.footer { border-top: 1px solid var(--line); height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 16px; font-size: 10px; color: var(--muted); }
.footer-coordinate { font: 9px ui-monospace, monospace; }
.footer span:last-child { color: var(--ink); }
.flight-hud { position: absolute; inset: 30px 0 80px; pointer-events: none; z-index: 3; }
.flight-hud button { pointer-events: auto; }
.score-card { display: flex; flex-direction: column; gap: 8px; }
.score-card strong { font-size: 54px; line-height: 1; letter-spacing: -4px; font-weight: 400; font-variant-numeric: tabular-nums; }
#best { color: var(--muted); font: 10px ui-monospace, monospace; }
.flight-actions { position: absolute; right: 0; top: 0; display: flex; gap: 8px; }
.small-button { border: 1px solid var(--line); color: var(--ink); background: var(--sky); padding: 12px 18px; border-radius: 4px; font-size: 12px; min-height: 44px; }
.small-button:hover { border-color: var(--ink); }
.flight-help { position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); font-size: 11px; color: var(--muted); width: 100%; text-align: center; }
.flight-message { position: absolute; top: 50%; width: 100%; text-align: center; font-size: 20px; text-shadow: 0 1px var(--sky); }
body.flying .intro, body.flying .aircraft-note, body.flying .compass { visibility: hidden; }
body.flying .flight-view { inset: 0 0 60px; }
body.flying #sky { touch-action: none; cursor: crosshair; }
body.flying .sky-disc { right: calc(50% - min(24vw, 340px)); opacity: .5; }
body.flying .sky-lines { display: none; }
body.flying #motion { visibility: hidden; }
body.night { --sky: #172c38; --ink: #ecebdc; --muted: #adbdc0; --line: #3e5660; --paper: #172c38; background: var(--sky); color: var(--ink); }
body.night .sky-disc { border-color: #3e5660; background: radial-gradient(circle, #8d99881a, transparent 68%); }
body.night .sky-disc::after { border-color: #3e5660; }
body.night .sky-lines { opacity: .3; }
body.night .launch:hover:not(:disabled) { background: #c8d6cc; }
.skip-link { position: fixed; top: -100px; left: 20px; z-index: 10; background: var(--ink); color: var(--paper); padding: 12px; }
.skip-link:focus { top: 12px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.fallback-note { font-size: 12px; color: var(--muted); max-width: 260px; }
.error-page { min-height: calc(100svh - 174px); display: grid; align-content: center; }
.error-page h1 { margin-top: 20px; }
.error-page .launch { justify-self: start; }
@media (min-width: 1600px) { .site-shell { padding: 0 70px; } }
@media (max-width: 900px) {
  .site-shell { padding: 0 28px; }.edition { display: none; }.intro { width: 48%; }.flight-view { left: 26%; right: -25px; }h1 { font-size: 68px; }.aircraft-note { right: 4%; bottom: 150px; }.footer-coordinate { display: none; }
}
@media (max-width: 600px) {
  .site-shell { padding: 0 22px; }.header { height: 78px; }.wordmark { font-size: 23px; }.main { height: auto; min-height: max(770px, calc(100svh - 143px)); }.intro { padding-top: 36px; width: 100%; }
  h1 { font-size: clamp(54px, 12vw, 70px); line-height: 1.03; margin: 23px 0 16px; }.intro-copy { font-size: 14px; line-height: 1.6; margin-bottom: 22px; }.launch { padding: 15px 18px; font-size: 12px; min-width: 170px; }.invitation { font-size: 9px; }
  .flight-view { inset: 320px -22px 72px; }.sky-disc { top: 345px; width: 85%; right: 0; }.sky-lines { top: 62%; left: 0; }.aircraft-note { right: 8px; bottom: 96px; font-size: 9px; }.aircraft-note strong { font-size: 10px; }.compass { display: none; }
  .scene-toolbar { bottom: 15px; }.scene-caption { display: none; }.scene-options { width: 100%; justify-content: space-between; }.toolbar-divider { display: none; }.footer { font-size: 9px; height: 65px; }
  body.flying .main { height: calc(100svh - 143px); min-height: 470px; }body.flying .flight-view { inset: 0 -22px 55px; }body.flying .sky-disc { top: 22%; right: 7%; }.flight-hud { top: 24px; bottom: 70px; }.flight-help { font-size: 10px; max-width: 270px; line-height: 1.7; }.score-card .eyebrow { font-size: 8px; }.score-card strong { font-size: 44px; }.small-button { padding: 10px 14px; }.error-page { min-height: calc(100svh - 143px); }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; } }