:root{
  /* NEBULA PALETTE v3 — swatch strip + product-card feel */
  --void:#0E1233;            /* vignette floor */
  --ink:#1D2557;             /* rich medium navy — page base */
  --panel:#232C63;           /* card navy (swatch indigo, lifted) */
  --panel-2:#2E3878;         /* raised surface */
  --star:#F0E9DB;            /* warm cream — text primary (card white) */
  --dim:#A8AECB;             /* lavender-grey — text secondary */
  --teal:#4FB39A;            /* sea-green accent — links, hovers */
  --gold:#F2CE85;            /* warm sand — kickers, CTAs (E8-card gold) */
  --hybrid-blue:#2E6C97;     /* swatch medium blue — borders, quiet accents */
  --uv-dim:#5A2153;          /* plum wash — hovers */
  --line:rgba(240,233,219,.14);
  --line-soft:rgba(240,233,219,.08);
  /* swatch set, named */
  --a-sand:#F2CE85; --a-sea:#45A08A; --a-teal:#2A8C9C;
  --a-blue:#205E8C; --a-navy:#232A6C; --a-plum:#6D2260;
  /* sparing functional accents */
  --live:#58C7A6; --alert:#E8A94E; --focus:#8E2F77;
  --display:'Marcellus',serif;
  --body:'Space Grotesk',sans-serif;
  --mono:'JetBrains Mono',monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--ink);color:var(--star);font-family:var(--body);font-weight:300;line-height:1.65;overflow-x:hidden}
::selection{background:var(--teal);color:var(--ink)}
img{display:block;max-width:100%}
a{color:var(--teal)}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}

/* ---------- shared ---------- */
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.eyebrow{font-family:var(--mono);font-size:.72rem;letter-spacing:.28em;text-transform:uppercase;color:var(--teal);display:flex;align-items:center;gap:14px}
.eyebrow::after{content:'';height:1px;flex:0 0 56px;background:var(--teal);opacity:.5}
h2.sec-title{font-family:var(--display);font-weight:300;font-size:clamp(2.1rem,4.6vw,3.4rem);line-height:1.08;margin:.55em 0 .35em;letter-spacing:-.01em}
h2.sec-title em{font-style:italic;color:var(--gold)}
.sec-intro{max-width:56ch;color:var(--dim);font-size:1.02rem}
section{padding:110px 0;position:relative}
.mono{font-family:var(--mono)}

/* ---------- nav ---------- */
nav{position:fixed;top:0;left:0;right:0;z-index:60;display:flex;justify-content:space-between;align-items:center;
  padding:16px 28px;background:linear-gradient(rgba(6,8,16,.92),rgba(6,8,16,.75) 70%,transparent);backdrop-filter:blur(6px)}
.brand{font-family:var(--mono);font-size:.8rem;letter-spacing:.32em;color:var(--star);text-decoration:none}
.brand b{color:var(--gold);font-weight:500}
.burger{display:flex;flex-direction:column;justify-content:center;gap:5px;width:46px;height:40px;
  background:transparent;border:1px solid var(--line);padding:0 11px;transition:.25s}
.burger span{display:block;height:1.5px;background:var(--star);transition:.3s}
.burger:hover{border-color:var(--teal)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}
#menu{position:fixed;top:72px;right:28px;z-index:55;width:min(330px,calc(100vw - 48px));
  max-height:min(66vh,560px);overflow-y:auto;background:rgba(11,16,30,.97);backdrop-filter:blur(10px);
  border:1px solid var(--line);box-shadow:0 18px 50px rgba(0,0,0,.55);padding:16px 14px;
  display:none;opacity:0;transform:translateY(-8px);transition:opacity .22s,transform .22s}
#menu.open{display:block;opacity:1;transform:translateY(0)}
.menu-grid{display:grid;grid-template-columns:1fr;gap:0}
.menu-grid a{display:flex;align-items:baseline;gap:12px;padding:9px 8px;text-decoration:none;
  border-bottom:1px solid var(--line-soft);transition:.2s}
.menu-grid a:last-child{border-bottom:0}
.menu-grid a:hover{background:rgba(107,216,200,.07);padding-left:14px}
.menu-grid a .n{font-family:var(--mono);font-size:.62rem;color:var(--gold);letter-spacing:.1em;min-width:24px}
.menu-grid a .t{font-family:var(--display);font-size:1rem;color:var(--star);font-weight:300}
.menu-grid a .live-dot{width:5px;height:5px;margin:0 0 0 6px}
.menu-cap{margin:2px 8px 10px;font-family:var(--mono);font-size:.6rem;
  letter-spacing:.24em;text-transform:uppercase;color:var(--dim)}

/* ---------- hero ---------- */
#hero{min-height:100svh;display:flex;align-items:center;padding:140px 0 90px;overflow:hidden}
#stars{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.hero-inner{position:relative;z-index:2}
.hero-eyebrow{font-family:var(--mono);font-size:.74rem;letter-spacing:.3em;text-transform:uppercase;color:var(--teal);margin-bottom:26px}
h1{font-family:var(--display);font-weight:300;font-size:clamp(3rem,9.5vw,7.6rem);line-height:.98;letter-spacing:-.02em}
h1 .l2{display:block;font-style:italic;color:transparent;-webkit-text-stroke:1px var(--star);opacity:.85}
.hero-sub{margin-top:34px;max-width:52ch;color:var(--dim);font-size:1.05rem}
.hero-sub b{color:var(--star);font-weight:400}
.odometer{margin-top:48px;display:inline-flex;flex-wrap:wrap;align-items:baseline;gap:10px 18px;border:1px solid var(--line);
  padding:18px 24px;background:rgba(11,16,30,.55);backdrop-filter:blur(4px)}
.odometer .lbl{font-family:var(--mono);font-size:.68rem;letter-spacing:.22em;text-transform:uppercase;color:var(--dim)}
.odometer .val{font-family:var(--mono);font-size:clamp(1.15rem,3vw,1.7rem);color:var(--gold);font-weight:400;font-variant-numeric:tabular-nums}
.odometer .unit{font-family:var(--mono);font-size:.78rem;color:var(--teal)}
.hero-scroll{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);font-family:var(--mono);font-size:.66rem;
  letter-spacing:.3em;text-transform:uppercase;color:var(--dim);z-index:2;animation:bob 2.6s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}

/* ---------- orrery ---------- */
#system{background:linear-gradient(var(--ink) 0%,var(--ink-2) 18%,var(--ink-2) 82%,var(--ink) 100%)}
.orrery-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(300px,1fr);gap:44px;align-items:start;margin-top:52px}
@media(max-width:960px){.orrery-grid{grid-template-columns:1fr}}
.orrery-stage{position:relative;border:1px solid var(--line);background:radial-gradient(circle at 50% 50%,#141B3E 0%,#0B0F28 70%);aspect-ratio:1/1;max-height:640px}
#orrery{width:100%;height:100%;display:block;cursor:pointer}
.orrery-hud{position:absolute;top:14px;left:16px;font-family:var(--mono);font-size:.66rem;letter-spacing:.16em;color:var(--dim);text-transform:uppercase}
.orrery-ctl{position:absolute;bottom:14px;left:16px;right:16px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.orrery-ctl button{background:transparent;border:1px solid var(--line);color:var(--star);font-family:var(--mono);
  font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;padding:8px 14px;transition:.25s}
.orrery-ctl button:hover,.orrery-ctl button[aria-pressed="true"]{border-color:var(--teal);color:var(--teal)}
.planet-card{border:1px solid var(--line);background:var(--panel)}
.planet-card .pc-img{aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--line);background:#000}
.planet-card .pc-img img{width:100%;height:100%;object-fit:cover;transition:transform .8s ease}
.planet-card:hover .pc-img img{transform:scale(1.04)}
.pc-body{padding:26px}
.pc-name{font-family:var(--display);font-size:2rem;font-weight:300;line-height:1}
.pc-name em{font-style:italic;color:var(--gold);font-size:.55em;margin-left:8px}
.pc-desc{color:var(--dim);font-size:.94rem;margin:14px 0 20px}
/* pc-data rebuilt in v5 editorial layer */
.pc-credit{font-family:var(--mono);font-size:.62rem;color:var(--dim);padding:10px 26px 16px;letter-spacing:.06em}

/* ---------- scale ladder ---------- */
.ladder{margin-top:60px;border-top:1px solid var(--line)}
.rung{display:grid;grid-template-columns:190px minmax(0,1fr) minmax(0,1.1fr);gap:34px;padding:44px 0;border-bottom:1px solid var(--line);align-items:center}
@media(max-width:860px){.rung{grid-template-columns:1fr;gap:18px}}
.rung .dist{font-family:var(--mono);color:var(--gold);font-size:.95rem;letter-spacing:.04em}
.rung .dist small{display:block;color:var(--dim);font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;margin-top:6px}
.rung h3{font-family:var(--display);font-weight:300;font-size:1.7rem;line-height:1.15}
.rung p{color:var(--dim);font-size:.93rem;margin-top:10px;max-width:46ch}
.rung .r-img{overflow:hidden;border:1px solid var(--line);aspect-ratio:16/9;background:#000}
.rung .r-img img{width:100%;height:100%;object-fit:cover;opacity:.92;transition:transform 1.1s ease,opacity .5s}
.rung:hover .r-img img{transform:scale(1.05);opacity:1}

/* ---------- gallery ---------- */
#gallery{background:var(--ink-2)}
.g-grid{margin-top:52px;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:900px){.g-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.g-grid{grid-template-columns:1fr}}
.g-item{position:relative;border:1px solid var(--line);overflow:hidden;aspect-ratio:4/3;background:#000;cursor:zoom-in;padding:0}
.g-item img{width:100%;height:100%;object-fit:cover;transition:transform .9s ease,opacity .4s;opacity:.9}
.g-item:hover img{transform:scale(1.06);opacity:1}
.g-cap{position:absolute;left:0;right:0;bottom:0;padding:34px 16px 12px;font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;
  color:var(--star);background:linear-gradient(transparent,rgba(6,8,16,.92));text-align:left;text-transform:uppercase}
.g-item.tall{grid-row:span 2;aspect-ratio:auto}
/* lightbox */
#lightbox{position:fixed;inset:0;z-index:100;background:rgba(4,5,10,.94);display:none;align-items:center;justify-content:center;flex-direction:column;padding:5vh 4vw}
#lightbox.open{display:flex}
#lb-img{max-width:100%;max-height:78vh;border:1px solid var(--line)}
#lb-cap{margin-top:16px;font-family:var(--mono);font-size:.74rem;letter-spacing:.1em;color:var(--dim);text-align:center;max-width:70ch}
#lb-cap b{color:var(--star);font-weight:500}
#lb-close{position:absolute;top:22px;right:26px;background:none;border:1px solid var(--line);color:var(--star);
  font-family:var(--mono);font-size:.7rem;letter-spacing:.2em;padding:10px 16px}
#lb-close:hover{border-color:var(--gold);color:var(--gold)}

/* ---------- library ---------- */
.lib-grid{margin-top:52px;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:960px){.lib-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.lib-grid{grid-template-columns:1fr}}
.lib-card{display:block;border:1px solid var(--line);background:var(--panel);padding:26px;text-decoration:none;position:relative;transition:.3s;min-height:190px}
.lib-card:hover{border-color:var(--teal);background:var(--panel-2);transform:translateY(-3px)}
.lib-card .lc-tag{font-family:var(--mono);font-size:.6rem;letter-spacing:.22em;text-transform:uppercase;color:var(--gold)}
.lib-card h3{font-family:var(--display);font-weight:400;color:var(--star);font-size:1.28rem;margin:12px 0 8px;line-height:1.2}
.lib-card p{color:var(--dim);font-size:.86rem}
.lib-card .lc-go{position:absolute;bottom:18px;right:22px;font-family:var(--mono);color:var(--teal);font-size:.8rem;transition:transform .3s}
.lib-card:hover .lc-go{transform:translateX(5px)}

/* ---------- skip link ---------- */
.skip{position:absolute;left:-9999px;top:0;z-index:200;background:var(--gold);color:var(--ink);
  font-family:var(--mono);font-size:.75rem;letter-spacing:.15em;padding:12px 18px;text-decoration:none}
.skip:focus{left:12px;top:12px}

/* ---------- live deck ---------- */
#live{padding:80px 0;background:var(--ink-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.live-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap}
.live-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--teal);margin-right:10px;
  animation:pulse 2s ease-in-out infinite;vertical-align:middle}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.25}}
.live-deck{margin-top:38px;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
@media(max-width:1020px){.live-deck{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.live-deck{grid-template-columns:1fr}}
.live-card{border:1px solid var(--line);background:var(--panel);padding:22px;display:flex;flex-direction:column;min-height:180px}
.live-card .lc-k{font-family:var(--mono);font-size:.62rem;letter-spacing:.22em;text-transform:uppercase;color:var(--dim)}
.live-card .lc-v{font-family:var(--mono);font-size:clamp(1.5rem,2.6vw,2.1rem);color:var(--gold);margin:10px 0 2px;font-variant-numeric:tabular-nums;line-height:1.1}
.live-card .lc-v small{font-size:.5em;color:var(--teal)}
.live-card .lc-note{color:var(--dim);font-size:.8rem;margin-top:auto;padding-top:12px}
.live-card .lc-note a{color:var(--teal);text-decoration:none;border-bottom:1px solid rgba(107,216,200,.3)}
.live-card .lc-sub{font-family:var(--mono);font-size:.72rem;color:var(--star);letter-spacing:.05em}
.lc-status-quiet{color:var(--teal)} .lc-status-active{color:var(--gold)} .lc-status-storm{color:#E8A94E}

/* ---------- fact sheet table ---------- */
.fact-wrap{margin-top:70px}
.fact-title{font-family:var(--display);font-weight:300;font-size:1.7rem}
.fact-title em{font-style:italic;color:var(--gold)}
.fact-src{font-family:var(--mono);font-size:.66rem;letter-spacing:.12em;color:var(--dim);text-transform:uppercase;margin-top:6px}
.fact-src a{color:var(--teal)}
.table-scroll{margin-top:22px;overflow-x:auto;border:1px solid var(--line)}
table.facts{width:100%;border-collapse:collapse;min-width:880px;background:var(--panel)}
.facts th,.facts td{padding:12px 14px;text-align:right;border-bottom:1px solid var(--line-soft);font-size:.82rem}
.facts th:first-child,.facts td:first-child{text-align:left}
.facts thead th{font-family:var(--mono);font-size:.6rem;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);
  cursor:pointer;user-select:none;white-space:nowrap;background:var(--ink-2);position:sticky;top:0}
.facts thead th:hover{color:var(--teal)}
.facts thead th[aria-sort]::after{content:' ↕';opacity:.5}
.facts thead th[aria-sort="ascending"]::after{content:' ↑';color:var(--gold);opacity:1}
.facts thead th[aria-sort="descending"]::after{content:' ↓';color:var(--gold);opacity:1}
.facts tbody td{font-family:var(--mono);color:var(--star)}
.facts tbody td:first-child{font-family:var(--body);font-weight:400}
.facts tbody tr:hover{background:var(--panel-2)}
.facts tbody tr.earth{background:rgba(107,216,200,.07)}
.facts tbody tr.earth td:first-child{color:var(--teal)}

/* ---------- films ---------- */
#films{background:var(--ink)}
.film-grid{margin-top:52px;display:grid;grid-template-columns:1fr 1fr;gap:22px}
@media(max-width:820px){.film-grid{grid-template-columns:1fr}}
.film{border:1px solid var(--line);background:var(--panel)}
.film video{width:100%;display:block;aspect-ratio:16/9;background:#000}
.film figcaption{padding:16px 20px}
.film figcaption b{font-family:var(--display);font-weight:400;font-size:1.08rem;display:block}
.film figcaption span{font-family:var(--mono);font-size:.66rem;letter-spacing:.12em;color:var(--dim);text-transform:uppercase;display:block;margin-top:6px}

/* ---------- hangar ---------- */
#hangar{background:linear-gradient(var(--ink),var(--ink-2))}
.hangar-stage{position:relative;margin-top:52px;border:1px solid var(--line);
  background:radial-gradient(circle at 50% 40%,#151C40 0%,#0A0E26 75%);height:min(70vh,620px)}
#voy3d{width:100%;height:100%;display:block;cursor:grab;touch-action:none}
#voy3d:active{cursor:grabbing}
.v3d-tag{position:absolute;top:14px;right:16px;font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;
  color:var(--gold);text-transform:uppercase;text-align:right;max-width:46%}

/* ---------- observatory ---------- */
#observatory{background:var(--ink-2)}
.obs-grid{margin-top:52px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:44px;align-items:center}
@media(max-width:880px){.obs-grid{grid-template-columns:1fr}}
.obs-img{aspect-ratio:4/5;max-height:560px}

/* ---------- probes ---------- */
#probes{background:var(--ink)}
.probe-grid{margin-top:52px;display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:820px){.probe-grid{grid-template-columns:1fr}}
.probe-card{border:1px solid var(--line);background:var(--panel);padding:26px}
.probe-card header{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap}
.probe-card h3{font-family:var(--display);font-weight:400;font-size:1.6rem}
.p-status{font-family:var(--mono);font-size:.64rem;letter-spacing:.18em;text-transform:uppercase}
.p-status.live{color:var(--teal)}
.p-status.dead{color:var(--dim)}
.probe-card>p{color:var(--dim);font-size:.9rem;margin:12px 0 18px}
.p-odo{border:1px solid var(--line);background:var(--ink-2);padding:14px 16px;margin-bottom:14px;display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 12px}
.p-odo .lbl{font-family:var(--mono);font-size:.62rem;letter-spacing:.18em;text-transform:uppercase;color:var(--dim)}
.p-odo .val{font-family:var(--mono);font-size:1.05rem;color:var(--gold);font-variant-numeric:tabular-nums}
.p-odo .unit{font-family:var(--mono);font-size:.72rem;color:var(--teal)}
.artifact-row{margin-top:44px;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:880px){.artifact-row{grid-template-columns:1fr}}
.artifact{border:1px solid var(--line);background:var(--panel)}
.artifact img{aspect-ratio:4/3;width:100%;object-fit:cover;border-bottom:1px solid var(--line)}
.artifact figcaption{padding:14px 18px;font-size:.8rem;color:var(--dim)}
.artifact figcaption b{color:var(--star);font-weight:500}

/* ---------- rubin ---------- */
#rubin{background:var(--ink-2)}
.rubin-grid{margin-top:52px;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:48px;align-items:start}
@media(max-width:920px){.rubin-grid{grid-template-columns:1fr}}
.rubin-p{color:var(--dim);font-size:.95rem;margin-top:14px}
.rubin-p b{color:var(--star);font-weight:400}
.tv-mural{border:1px solid var(--line);background:var(--panel);padding:20px}
.tv-grid{display:grid;grid-template-columns:repeat(25,1fr);gap:2px;aspect-ratio:25/16}
.tv-grid span{background:var(--ink-2);border:1px solid var(--line-soft)}
.tv-grid span.you{background:var(--gold);border-color:var(--gold)}
.tv-grid span.scan{background:rgba(107,216,200,.45)}
.tv-cap{margin-top:14px;font-size:.8rem;color:var(--dim)}
.tv-cap b{color:var(--star);font-weight:400}

/* ---------- moon ---------- */
#moon{background:var(--ink)}
.moon-deck{margin-top:52px;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
@media(max-width:1020px){.moon-deck{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.moon-deck{grid-template-columns:1fr}}
.moon-disc-card{align-items:center;text-align:center}
#moon-disc{margin:10px auto 8px;display:block}
.know-grid{margin-top:44px;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-soft);border:1px solid var(--line-soft)}
@media(max-width:1020px){.know-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.know-grid{grid-template-columns:1fr}}
.know{background:var(--panel);padding:24px}
.know h4{font-family:var(--display);font-weight:400;font-size:1.12rem;color:var(--star);margin-bottom:10px}
.know p{color:var(--dim);font-size:.85rem}
#moon .artifact-row{margin-top:44px}

/* ---------- observatory wall ---------- */
#obs-wall{background:var(--ink-2)}
#obs-wall .g-grid{margin-top:52px}
@media(max-width:1020px){#obs-wall .g-grid{grid-template-columns:repeat(2,1fr)!important}}
@media(max-width:560px){#obs-wall .g-grid{grid-template-columns:1fr!important}}
.obs-live img{object-fit:cover;background:#000}

/* ---------- observatories 3D + globes ---------- */
#great-obs{background:var(--ink)}
#worlds{background:var(--ink-2)}
.stage-tabs{display:flex;gap:10px;margin-top:44px;flex-wrap:wrap}
.stage-tabs button{background:transparent;border:1px solid var(--line);color:var(--dim);font-family:var(--mono);
  font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;padding:10px 18px;transition:.25s}
.stage-tabs button[aria-pressed="true"]{border-color:var(--gold);color:var(--gold)}
.stage-tabs button:hover{color:var(--teal);border-color:var(--teal)}
.stage3d{position:relative;margin-top:14px;border:1px solid var(--line);
  background:radial-gradient(circle at 50% 42%,#151C40 0%,#0A0E26 78%);height:min(66vh,600px)}
.stage3d canvas{width:100%;height:100%;display:block;cursor:grab;touch-action:none}
.stage3d canvas:active{cursor:grabbing}
.worlds-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(300px,1fr);gap:40px;align-items:start;margin-top:14px}
@media(max-width:960px){.worlds-grid{grid-template-columns:1fr}}
.worlds-grid .stage3d{margin-top:0}
.tex-credit{position:absolute;bottom:10px;right:14px;font-family:var(--mono);font-size:.58rem;letter-spacing:.1em;color:var(--dim)}
.eng-grid{margin-top:14px}

/* ---------- supernovae ---------- */
#novae{background:var(--ink)}
.sn-types{margin-top:52px;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:880px){.sn-types{grid-template-columns:1fr}}
.sn-type{border:1px solid var(--line);background:var(--panel);padding:26px;border-top:2px solid var(--teal)}
.sn-type.ia{border-top-color:var(--gold)}
.sn-type h3{font-family:var(--display);font-weight:400;font-size:1.4rem}
.sn-type .sn-mech{font-family:var(--mono);font-size:.62rem;letter-spacing:.2em;text-transform:uppercase;color:var(--teal);display:block;margin:8px 0 12px}
.sn-type p{color:var(--dim);font-size:.88rem}
.sn-hist{margin-top:52px;border-top:1px solid var(--line)}
.sn-row{display:grid;grid-template-columns:120px minmax(0,1fr);gap:26px;padding:26px 0;border-bottom:1px solid var(--line)}
@media(max-width:640px){.sn-row{grid-template-columns:1fr;gap:8px}}
.sn-row .yr{font-family:var(--mono);color:var(--gold);font-size:1.05rem}
.sn-row h4{font-family:var(--display);font-weight:400;font-size:1.15rem;color:var(--star)}
.sn-row p{color:var(--dim);font-size:.88rem;margin-top:6px}

/* ---------- solar weather ---------- */
#solar{background:var(--ink-2)}
.flare-scale{margin-top:44px;display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--line-soft);border:1px solid var(--line-soft)}
@media(max-width:700px){.flare-scale{grid-template-columns:1fr}}
.flare{background:var(--panel);padding:18px}
.flare b{font-family:var(--mono);font-size:1.3rem;display:block}
.flare span{color:var(--dim);font-size:.78rem}
.flare.fx b{color:#E8A94E}.flare.fm b{color:var(--gold)}.flare.fc b{color:var(--teal)}.flare.fb b,.flare.fa b{color:var(--dim)}
#solar .film-grid{grid-template-columns:1fr 1fr}
@media(max-width:820px){#solar .film-grid{grid-template-columns:1fr}}

/* ---------- far suburbs ---------- */
#edge{background:var(--ink)}
.au-strip{margin-top:52px;border:1px solid var(--line);background:var(--panel);padding:26px 26px 18px;overflow-x:auto}
.au-bar{position:relative;height:64px;min-width:640px;background:linear-gradient(90deg,rgba(227,181,74,.35),rgba(107,216,200,.14) 30%,rgba(107,216,200,.05) 70%,transparent)}
.au-bar .tick{position:absolute;top:0;bottom:0;width:1px;background:var(--line)}
.au-bar .tick i{position:absolute;top:100%;left:-4px;transform:translateY(6px);font-style:normal;font-family:var(--mono);font-size:.6rem;letter-spacing:.08em;color:var(--dim);white-space:nowrap}
.au-bar .zone{position:absolute;top:14px;height:36px;border:1px solid var(--teal);background:rgba(107,216,200,.12)}
.au-bar .zone.oort{border-color:var(--gold);background:rgba(227,181,74,.10)}
.au-bar .zone b{position:absolute;top:-22px;left:4px;font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;color:var(--star);font-weight:500;white-space:nowrap}
.au-note{margin-top:34px;font-family:var(--mono);font-size:.64rem;letter-spacing:.1em;color:var(--dim)}
.edge-cols{margin-top:44px;display:grid;grid-template-columns:1fr 1fr;gap:40px}
@media(max-width:860px){.edge-cols{grid-template-columns:1fr}}
.edge-cols h3{font-family:var(--display);font-weight:400;font-size:1.5rem}
.edge-cols p{color:var(--dim);font-size:.92rem;margin-top:12px}
.edge-cols p b{color:var(--star);font-weight:400}

/* ---------- planetary defense ---------- */
#defense{background:var(--ink-2)}
.def-stats{margin-top:44px}
.snap-note{margin-top:10px;font-family:var(--mono);font-size:.64rem;letter-spacing:.1em;color:var(--dim)}
#defense .facts{min-width:640px}
#defense .facts thead th{cursor:default}
#defense .facts thead th::after{content:''}

/* ---------- links wall ---------- */
#live-links{background:var(--ink)}
.links-wall{margin-top:44px;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
@media(max-width:1020px){.links-wall{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.links-wall{grid-template-columns:1fr}}
.lw-group h3{font-family:var(--mono);font-size:.68rem;letter-spacing:.24em;text-transform:uppercase;color:var(--gold);
  border-bottom:1px solid var(--line);padding-bottom:10px;margin-bottom:6px}
.lw-group a{display:block;padding:11px 4px;color:var(--star);text-decoration:none;font-size:.88rem;border-bottom:1px solid var(--line-soft);transition:.2s}
.lw-group a:hover{color:var(--teal);padding-left:10px}
.lw-group a small{display:block;color:var(--dim);font-size:.7rem;font-family:var(--mono);letter-spacing:.04em;margin-top:2px}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);padding:56px 0 40px;background:var(--ink)}
.foot-grid{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
footer p{color:var(--dim);font-size:.82rem;max-width:64ch}
footer .mono{font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;color:var(--dim)}

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

/* ================= EXPANSION · sections 18–24 ================= */
.x-cols{display:grid;gap:22px}
@media(min-width:820px){.x-cols-2{grid-template-columns:1fr 1fr}.x-cols-3{grid-template-columns:repeat(3,1fr)}}
.x-card{background:var(--panel);border:1px solid var(--line);padding:26px 24px;position:relative}
.x-card h3{font-family:var(--display);font-weight:400;font-size:1.35rem;margin-bottom:.5em;letter-spacing:-.01em}
.x-card h3 em{font-style:italic;color:var(--gold)}
.x-card p{color:var(--dim);font-size:.95rem}
.x-card .mono-tag{font-family:var(--mono);font-size:.68rem;letter-spacing:.22em;text-transform:uppercase;color:var(--teal);display:block;margin-bottom:12px}
.x-stat{font-family:var(--display);font-size:2rem;color:var(--star);line-height:1.1}
.x-stat small{font-family:var(--mono);font-size:.7rem;color:var(--dim);letter-spacing:.12em;display:block;margin-top:6px;text-transform:uppercase}
.x-note{border-left:2px solid var(--gold);padding:14px 18px;background:var(--panel-2);color:var(--dim);font-size:.92rem;margin-top:22px}
.x-note b{color:var(--star)}
/* H-R diagram */
#hr-wrap{background:var(--panel);border:1px solid var(--line);padding:18px;margin-top:34px}
#hr-svg{width:100%;height:auto;display:block}
#hr-svg .hr-star{cursor:pointer}
#hr-svg .hr-star circle{transition:r .2s}
#hr-svg .hr-star:hover circle,#hr-svg .hr-star:focus circle{stroke:var(--gold);stroke-width:2}
#hr-readout{font-family:var(--mono);font-size:.78rem;color:var(--teal);margin-top:10px;min-height:1.4em}
/* nucleosynthesis strip */
.x-elements{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.x-el{width:64px;border:1px solid var(--line);padding:8px 6px;text-align:center;background:var(--panel-2)}
.x-el b{font-family:var(--display);font-size:1.3rem;font-weight:400;display:block;color:var(--star)}
.x-el span{font-family:var(--mono);font-size:.56rem;letter-spacing:.06em;color:var(--dim);text-transform:uppercase;line-height:1.3;display:block;margin-top:4px}
.x-el.o-bb{border-top:3px solid #2E6C97}.x-el.o-low{border-top:3px solid var(--teal)}
.x-el.o-mass{border-top:3px solid #8E2F77}.x-el.o-sn{border-top:3px solid var(--gold)}
.x-el.o-merge{border-top:3px solid #6D2260}
.x-legend{display:flex;flex-wrap:wrap;gap:16px;margin-top:14px;font-family:var(--mono);font-size:.68rem;color:var(--dim);letter-spacing:.08em;text-transform:uppercase}
.x-legend i{display:inline-block;width:22px;height:3px;margin-right:7px;vertical-align:middle}
/* budget bar */
.x-budget{display:flex;height:52px;border:1px solid var(--line);margin-top:26px;overflow:hidden}
.x-budget div{display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink);white-space:nowrap}
.x-b-de{background:#232A6C;color:var(--star);flex:68}
.x-b-dm{background:#2E6C97;color:var(--star);flex:27}
.x-b-or{background:var(--gold);flex:5}
/* timeline */
.x-time{display:flex;flex-direction:column;gap:0;margin-top:30px;border-left:1px solid var(--line);padding-left:26px}
.x-tick{position:relative;padding:14px 0}
.x-tick::before{content:'';position:absolute;left:-31px;top:22px;width:9px;height:9px;background:var(--teal);border-radius:50%}
.x-tick .t-when{font-family:var(--mono);font-size:.7rem;color:var(--gold);letter-spacing:.18em;text-transform:uppercase}
.x-tick .t-what{color:var(--star);margin-top:2px}
.x-tick .t-sub{color:var(--dim);font-size:.88rem}
/* tension */
.x-tension{display:grid;grid-template-columns:1fr 1fr;gap:26px;background:none;border:none;margin-top:26px}
.x-tension>div{background:var(--panel);padding:24px;text-align:center}
.x-tension .v{font-family:var(--display);font-size:2.6rem;color:var(--star)}
.x-tension .v small{font-size:1rem;color:var(--dim)}
/* drake */
#drake{background:var(--panel);border:1px solid var(--line);padding:26px;margin-top:34px}
#drake .d-row{display:grid;grid-template-columns:minmax(0,1fr) 120px 64px;gap:14px;align-items:center;padding:9px 0;border-bottom:1px solid var(--line-soft)}
#drake .d-row label{font-size:.9rem;color:var(--dim)}
#drake .d-row label b{color:var(--star);font-family:var(--mono);font-weight:500}
#drake input[type=range]{width:100%;accent-color:var(--teal)}
#drake .d-val{font-family:var(--mono);font-size:.8rem;color:var(--teal);text-align:right}
#drake-n{font-family:var(--display);font-size:3.2rem;color:var(--gold);line-height:1}
#drake-say{font-family:var(--mono);font-size:.75rem;color:var(--dim);margin-top:8px;letter-spacing:.06em}
/* method diagrams */
.x-method svg{width:100%;height:auto;display:block;background:var(--ink-2);border:1px solid var(--line-soft)}
@media(prefers-reduced-motion:no-preference){
  .x-transit-planet{animation:x-transit 6s linear infinite}
  .x-wobble{animation:x-wob 5s ease-in-out infinite}
}
@keyframes x-transit{0%{transform:translateX(-90px)}100%{transform:translateX(90px)}}
@keyframes x-wob{0%,100%{transform:translate(0,0)}50%{transform:translate(7px,3px)}}
/* people */
.x-people{display:grid;gap:22px;margin-top:36px}
@media(min-width:900px){.x-people{grid-template-columns:repeat(5,1fr)}}
@media(min-width:620px) and (max-width:899px){.x-people{grid-template-columns:repeat(2,1fr)}}
.x-person{background:var(--panel);border:1px solid var(--line)}
.x-person img{width:100%;aspect-ratio:4/5;object-fit:cover;filter:grayscale(.35) contrast(1.05);opacity:.92}
.x-person .p-body{padding:16px 16px 20px}
.x-person h3{font-family:var(--display);font-weight:400;font-size:1.1rem}
.x-person .p-years{font-family:var(--mono);font-size:.66rem;color:var(--gold);letter-spacing:.18em;margin:4px 0 10px}
.x-person p{color:var(--dim);font-size:.85rem;line-height:1.55}
/* apod + neo */
#apod-panel{margin-top:26px;border:1px solid var(--gold);background:var(--panel);display:grid;gap:0}
@media(min-width:820px){#apod-panel{grid-template-columns:1.3fr 1fr}}
#apod-img{width:100%;height:100%;object-fit:cover;max-height:420px;background:#000}
#apod-body{padding:24px}
#apod-body h3{font-family:var(--display);font-weight:400;font-size:1.4rem}
#apod-date{font-family:var(--mono);font-size:.68rem;color:var(--teal);letter-spacing:.2em;text-transform:uppercase}
#apod-exp{color:var(--dim);font-size:.88rem;margin-top:12px;max-height:180px;overflow:auto}
#neo-list{margin-top:26px;border:1px solid var(--line);background:var(--panel)}
#neo-list table{width:100%;border-collapse:collapse;font-size:.85rem}
#neo-list th{font-family:var(--mono);font-size:.64rem;letter-spacing:.16em;text-transform:uppercase;color:var(--teal);text-align:left;padding:12px 14px;border-bottom:1px solid var(--line)}
#neo-list td{padding:10px 14px;border-bottom:1px solid var(--line-soft);color:var(--dim)}
#neo-list td:first-child{color:var(--star)}
#neo-status{font-family:var(--mono);font-size:.72rem;color:var(--dim);padding:12px 14px}
/* search */
#menu-search{width:100%;background:var(--ink-2);border:1px solid var(--line);color:var(--star);
  font-family:var(--mono);font-size:.8rem;padding:10px 12px;margin-bottom:12px}
#menu-search::placeholder{color:var(--dim)}
#menu-search:focus{outline:2px solid var(--gold);outline-offset:2px}
.menu-grid a.x-hide{display:none}
/* exo counter */
#exo-count{font-family:var(--display);font-size:clamp(3rem,7vw,5rem);color:var(--gold);line-height:1}
#exo-src{font-family:var(--mono);font-size:.7rem;color:var(--dim);letter-spacing:.1em;margin-top:8px}


/* ===== bright accents — deliberate, sparse ===== */
.live-dot,.dot-live{background:var(--live)!important;box-shadow:0 0 10px rgba(88,199,166,.55)!important}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px}
.hero-accent{color:var(--gold)}
.alert,.warn{color:var(--alert)}
nav .active{color:var(--gold)}

/* ===== multi-page chrome ===== */
.site-nav{position:sticky;top:0;z-index:50;display:flex;gap:1.1rem;flex-wrap:wrap;justify-content:center;
 padding:.7rem 1rem;background:rgba(19,26,61,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line-soft)}
.site-nav a{font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;
 color:var(--dim);text-decoration:none;padding:.2rem .1rem}
.site-nav a:hover{color:var(--teal)}
.page-stars{position:fixed;inset:0;z-index:-1;opacity:.5}
.site-footer{border-top:1px solid var(--line-soft);margin-top:5rem;padding:2.2rem 1.4rem;text-align:center}
.journey{display:flex;justify-content:space-between;max-width:900px;margin:0 auto 1.2rem}
.jump{font-family:var(--display);color:var(--teal);text-decoration:none;font-size:1.05rem}
.jump:hover{color:var(--star)}
.fine{color:var(--dim);font-size:.75rem;font-family:var(--mono)}
.stub{min-height:50vh;display:grid;place-content:center;text-align:center;gap:1rem}
/* ===== history timeline scrubber ===== */
#timebar{position:fixed;left:0;right:0;bottom:0;z-index:60;border-top:1px solid var(--line-soft);
 backdrop-filter:blur(8px)}
#timebar canvas{display:block;width:100%}
body:has(#timebar) main{padding-bottom:72px}
.era .orrery-hud{font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;color:var(--dim)}

/* ===== index path grid ===== */
.path-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;margin-top:1.6rem}
.path-card{display:flex;flex-direction:column;gap:.3rem;padding:1rem 1.1rem;background:var(--panel);
 border:1px solid var(--line-soft);text-decoration:none;border-radius:6px;transition:border-color .2s,transform .2s}
.path-card:hover{border-color:var(--hybrid-blue);transform:translateY(-2px);background:var(--panel-2)}
.path-card .pc-t{font-family:var(--display);font-size:1.12rem;color:var(--star)}
.path-card .pc-d{font-family:var(--mono);font-size:.68rem;letter-spacing:.08em;color:var(--dim)}

/* ===== v3: navy depth field ===== */
body{background:
 radial-gradient(1100px 720px at 18% -8%, rgba(46,56,120,.85) 0%, rgba(46,56,120,0) 62%),
 radial-gradient(900px 640px at 88% 12%, rgba(109,34,96,.28) 0%, rgba(109,34,96,0) 58%),
 radial-gradient(1300px 900px at 50% 118%, rgba(14,18,51,.9) 0%, rgba(14,18,51,0) 60%),
 linear-gradient(180deg, #222B60 0%, var(--ink) 42%, #161D46 100%);
 background-attachment:fixed}
.path-card:hover{border-color:var(--gold)}
.jump{color:var(--gold)}
.chapter-title{color:var(--star)}

/* ============================================================
   v4 — THE ARK PASS · astrometric plate redesign
   Signature: registration-tick plates on a graticule field.
   Nothing is a closed box; everything is a chart in an atlas.
   ============================================================ */

/* --- the field: graticule woven into the navy depth --- */
body{background:
 repeating-linear-gradient(0deg, rgba(240,233,219,.022) 0 1px, transparent 1px 110px),
 repeating-linear-gradient(90deg, rgba(240,233,219,.022) 0 1px, transparent 1px 110px),
 radial-gradient(1100px 720px at 18% -8%, rgba(46,56,120,.85) 0%, rgba(46,56,120,0) 62%),
 radial-gradient(900px 640px at 88% 12%, rgba(109,34,96,.28) 0%, rgba(109,34,96,0) 58%),
 radial-gradient(1300px 900px at 50% 118%, rgba(14,18,51,.9) 0%, rgba(14,18,51,0) 60%),
 linear-gradient(180deg,#222B60 0%,var(--ink) 42%,#161D46 100%);
 background-attachment:fixed}
/* film grain, above content, imperceptible but felt */
html::after{content:'';position:fixed;inset:0;z-index:90;pointer-events:none;opacity:.05;
 background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* --- masthead: the ark's nameplate --- */
.masthead{position:sticky;top:0;z-index:60;display:flex;align-items:center;gap:2.2rem;
 padding:.72rem 1.6rem;background:linear-gradient(rgba(19,26,61,.95),rgba(19,26,61,.82));
 backdrop-filter:blur(10px)}
.masthead::after{content:'';position:absolute;left:0;right:0;bottom:0;height:1px;
 background:linear-gradient(90deg,transparent 0%,rgba(242,206,133,.5) 18%,rgba(242,206,133,.14) 55%,transparent 100%)}
.mast-brand{display:flex;flex-direction:column;gap:2px;text-decoration:none;flex:0 0 auto}
.mast-word{font-family:var(--display);font-size:1.04rem;letter-spacing:.42em;color:var(--star)}
.mast-sub{font-family:var(--mono);font-size:.5rem;letter-spacing:.32em;text-transform:uppercase;color:var(--dim)}
.masthead .site-nav{position:static;background:none;border:none;backdrop-filter:none;
 padding:0;margin-left:auto;justify-content:flex-end;gap:1.05rem}
.masthead .site-nav a{position:relative;padding:.15rem 0 .38rem}
.masthead .site-nav a.active::after{content:'';position:absolute;left:0;bottom:0;width:16px;height:1px;background:var(--gold)}
.site-nav a:hover{color:var(--gold)}

/* --- plate labels: eyebrows earn their rails --- */
.eyebrow{color:var(--gold)}
.eyebrow::before{content:'';flex:0 0 44px;height:1px;
 background:linear-gradient(90deg,rgba(242,206,133,.55),rgba(242,206,133,.12))}
.eyebrow::after{content:'';flex:1;height:1px;max-width:340px;
 background:linear-gradient(90deg,rgba(240,233,219,.14),transparent)}
h2.sec-title em{color:var(--gold);font-style:italic}

/* --- the signature: registration-tick plates --- */
.probe-card,.live-card,.lib-card,.path-card,.x-tension>div,.moon-disc-card,.planet-card{
 border:none;border-radius:0;position:relative;
 background:radial-gradient(130% 150% at 18% 0%, rgba(46,56,120,.52) 0%, rgba(30,38,92,.30) 52%, rgba(21,27,68,.20) 100%);
 box-shadow:inset 0 0 0 1px rgba(240,233,219,.055)}
.probe-card::before,.live-card::before,.lib-card::before,.path-card::before,.x-tension>div::before,.moon-disc-card::before,.planet-card::before{
 content:'';position:absolute;top:-1px;left:-1px;width:15px;height:15px;pointer-events:none;
 border-top:1px solid rgba(242,206,133,.65);border-left:1px solid rgba(242,206,133,.65);transition:width .25s,height .25s}
.probe-card::after,.live-card::after,.lib-card::after,.path-card::after,.x-tension>div::after,.moon-disc-card::after,.planet-card::after{
 content:'';position:absolute;bottom:-1px;right:-1px;width:15px;height:15px;pointer-events:none;
 border-bottom:1px solid rgba(240,233,219,.28);border-right:1px solid rgba(240,233,219,.28);transition:width .25s,height .25s}
.probe-card:hover::before,.lib-card:hover::before,.path-card:hover::before{width:26px;height:26px}
.probe-card:hover::after,.lib-card:hover::after,.path-card:hover::after{width:26px;height:26px}
.lib-card:hover,.path-card:hover{background:radial-gradient(130% 150% at 18% 0%, rgba(56,68,140,.6) 0%, rgba(34,43,102,.36) 55%, rgba(23,30,74,.22) 100%);transform:none;border:none}
.lib-card .lc-go{color:var(--gold)}

/* canvas stages become plates too */
.orrery-stage{border:none;box-shadow:inset 0 0 0 1px rgba(240,233,219,.06)}
.orrery-stage::before{content:'';position:absolute;top:-1px;left:-1px;width:15px;height:15px;z-index:2;pointer-events:none;
 border-top:1px solid rgba(242,206,133,.6);border-left:1px solid rgba(242,206,133,.6)}
.orrery-stage::after{content:'';position:absolute;bottom:-1px;right:-1px;width:15px;height:15px;z-index:2;pointer-events:none;
 border-bottom:1px solid rgba(240,233,219,.26);border-right:1px solid rgba(240,233,219,.26)}

/* --- figures as archive plates --- */
.r-img{position:relative;padding:10px;background:rgba(14,18,51,.4);
 box-shadow:inset 0 0 0 1px rgba(240,233,219,.07)}
.r-img img{display:block;width:100%}
.r-img::before{content:'';position:absolute;top:-1px;left:-1px;width:14px;height:14px;
 border-top:1px solid rgba(242,206,133,.6);border-left:1px solid rgba(242,206,133,.6)}
.r-img::after{content:'';position:absolute;bottom:-1px;right:-1px;width:14px;height:14px;
 border-bottom:1px solid rgba(240,233,219,.26);border-right:1px solid rgba(240,233,219,.26)}
p.fine{border-left:2px solid rgba(242,206,133,.38);padding-left:11px;margin-top:9px;line-height:1.5}

/* --- ledgers, not boxes --- */
table.facts{background:transparent}
.facts th,.facts td{border-bottom:1px solid rgba(240,233,219,.09);padding:13px 14px}
.facts thead th{color:var(--gold);letter-spacing:.2em}
.facts tbody tr{transition:background .2s}
.facts tbody tr:hover{background:rgba(46,56,120,.28)}
.facts td{font-variant-numeric:tabular-nums}

/* --- instrument controls --- */
button.ia{border:none;border-radius:0;background:transparent;
 box-shadow:inset 0 0 0 1px rgba(240,233,219,.2);color:var(--dim);
 font-family:var(--mono);font-size:.64rem;letter-spacing:.18em;text-transform:uppercase;
 padding:9px 15px;cursor:pointer;transition:.2s}
button.ia:hover{color:var(--gold);box-shadow:inset 0 0 0 1px rgba(242,206,133,.6)}
input[type=range]{accent-color:var(--gold)}

/* --- journey: the voyage plate --- */
.site-footer{border-top:none;position:relative;padding-top:3rem}
.site-footer::before{content:'';position:absolute;top:0;left:12%;right:12%;height:1px;
 background:linear-gradient(90deg,transparent,rgba(242,206,133,.4) 30%,rgba(242,206,133,.4) 70%,transparent)}
.journey{align-items:baseline}

/* --- quiet arrival: sections surface as you reach them --- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}
@media (max-width:900px){.masthead{flex-wrap:wrap;gap:.8rem}.masthead .site-nav{justify-content:flex-start}}

/* ============================================================
   v5 — EDITORIAL PASS · type is set, not typed
   Fixes the .x-cols single-column defect; rebuilds pc-data as
   an almanac ledger; gives prose book rhythm and a real measure.
   ============================================================ */

/* --- THE LAYOUT FIX: asymmetric editorial columns --- */
@media(min-width:900px){
  .x-cols{grid-template-columns:7fr 5fr;column-gap:58px;row-gap:2.2rem;align-items:start}
  .x-cols>div+div{border-left:1px solid rgba(240,233,219,.07);padding-left:58px;margin-left:-58px;
   /* the rule sits in the gap: */ margin-left:0;padding-left:0;position:relative}
  .x-cols>div+div::before{content:'';position:absolute;left:-29px;top:.4rem;bottom:.4rem;width:1px;
   background:linear-gradient(rgba(240,233,219,.12),rgba(240,233,219,.02))}
}
.x-cols-3{column-gap:44px}
@media(min-width:820px){.x-cols-3>div+div{position:relative}
 .x-cols-3>div+div::before{content:'';position:absolute;left:-22px;top:.4rem;bottom:.4rem;width:1px;
  background:linear-gradient(rgba(240,233,219,.1),rgba(240,233,219,.02))}}

/* --- prose: a real measure, book rhythm --- */
main p:not([class]){max-width:62ch;font-size:1.03rem;line-height:1.78;color:#E9E3D6;text-wrap:pretty}
main p:not([class])+p:not([class]){text-indent:1.8em;margin-top:.55em}
main p:not([class]) strong{color:var(--star);font-weight:500}
main p:not([class]) i,main p:not([class]) em{color:#F4EDDD}
main p a{color:var(--teal);text-decoration:underline;text-underline-offset:3px;
 text-decoration-color:rgba(79,179,154,.45);text-decoration-thickness:1px;transition:color .2s}
main p a:hover{color:var(--gold);text-decoration-color:rgba(242,206,133,.6)}
::selection{background:rgba(242,206,133,.28);color:#FFF9EC}

/* the lede: drop cap opens each section (class set by shared.js) */
p.lede{font-size:1.07rem}
p.lede::first-letter{font-family:var(--display);font-size:3.35em;line-height:.76;
 float:left;padding:.06em .14em 0 0;color:var(--gold)}

/* standfirst: the section deck */
.sec-intro{font-size:1.17rem;line-height:1.66;color:#D9D5C6;max-width:56ch;margin-top:.2em}
.sec-intro::before{content:'—\2002';color:var(--gold)}

/* prose subheads: overline tick, display face */
.x-cols h3,.x-cols-2 h3,.x-cols-3 h3,.edge-cols h3{
 font-family:var(--display);font-weight:400;font-size:1.34rem;letter-spacing:.01em;
 color:var(--star);margin:1.9em 0 .55em}
.x-cols h3::before,.x-cols-2 h3::before,.x-cols-3 h3::before{
 content:'';display:block;width:22px;height:1px;background:var(--gold);margin-bottom:.65em;opacity:.75}
.x-cols>div>h3:first-child,.x-cols-3>div>h3:first-child{margin-top:.2em}

/* --- pc-data rebuilt: the almanac ledger --- */
.pc-data{display:block;max-width:56ch;margin-top:.4rem}
.pc-data div{display:grid;grid-template-columns:118px 1fr;column-gap:18px;align-items:baseline;
 padding:11px 2px;border-bottom:1px solid rgba(240,233,219,.09);position:relative;transition:background .2s}
.pc-data div:first-child{border-top:1px solid rgba(240,233,219,.09)}
.pc-data div:hover{background:rgba(46,56,120,.22)}
.pc-data div:hover::before{content:'';position:absolute;left:-14px;top:22%;bottom:22%;width:2px;background:var(--gold)}
.pc-data .k{font-family:var(--mono);font-size:.6rem;letter-spacing:.2em;text-transform:uppercase;
 color:var(--gold);margin:0;display:block}
.pc-data .v{font-family:var(--body);font-weight:300;font-size:.97rem;color:#E9E3D6;letter-spacing:0}
@media(max-width:560px){.pc-data div{grid-template-columns:1fr;row-gap:3px}}

/* --- figures: matted, never edge-to-edge --- */
.wrap>.r-img{max-width:820px;margin:2.8rem auto 0}
.r-img{padding:14px;background:rgba(14,18,51,.42)}
.r-img img{box-shadow:0 0 0 1px rgba(240,233,219,.1)}
.wrap>p.fine{max-width:820px;margin-left:auto;margin-right:auto}
.x-cols .r-img+.fine,.x-cols-3 .r-img+.fine{margin-bottom:1.6rem}

/* header block breathing room */
.eyebrow{margin-bottom:.4rem}
h2.sec-title{margin:.4em 0 .5em;max-width:18ch}

/* ============================================================
   v6 — DEPTH PASS · three optical planes
   Plane +1: plates float (lit top edge + navy penumbra)
   Plane  0: the prose page itself
   Plane −1: instrument wells recessed into the hull
   Plus: living atmosphere behind everything.
   ============================================================ */

/* --- atmosphere: slow nebula breath behind the page --- */
html::before{content:'';position:fixed;inset:-20%;z-index:-2;pointer-events:none;
 background:
  radial-gradient(42% 34% at 22% 28%, rgba(79,179,154,.10) 0%, transparent 70%),
  radial-gradient(46% 38% at 78% 62%, rgba(109,34,96,.14) 0%, transparent 72%),
  radial-gradient(38% 30% at 60% 18%, rgba(46,56,120,.5) 0%, transparent 70%);
 filter:blur(2px);animation:df-breathe 85s ease-in-out infinite alternate}
@keyframes df-breathe{
 0%{transform:translate3d(-2.5%,-1.5%,0) scale(1)}
 50%{transform:translate3d(1.8%,2.2%,0) scale(1.06)}
 100%{transform:translate3d(-1.2%,1.4%,0) scale(1.02)}}
@media (prefers-reduced-motion:reduce){html::before{animation:none}}
@media (max-width:700px){body{background-attachment:scroll}}
.page-stars{opacity:.55}

/* --- plane +1: plates float --- */
.probe-card,.live-card,.lib-card,.path-card,.x-tension>div,.moon-disc-card,.planet-card,.x-card{
 box-shadow:
  inset 0 1px 0 rgba(240,233,219,.10),          /* lit top edge */
  inset 0 0 0 1px rgba(240,233,219,.055),
  0 2px 6px rgba(6,10,28,.35),
  0 16px 38px rgba(6,10,28,.42);
 transition:transform .35s cubic-bezier(.2,.7,.2,1),box-shadow .35s}
.probe-card:hover,.live-card:hover,.lib-card:hover,.path-card:hover,.planet-card:hover{
 transform:translateY(-4px);
 box-shadow:
  inset 0 1px 0 rgba(240,233,219,.14),
  inset 0 0 0 1px rgba(242,206,133,.16),
  0 4px 10px rgba(6,10,28,.4),
  0 26px 60px rgba(6,10,28,.55),
  0 0 44px rgba(46,56,120,.35)}                 /* faint ambient bloom */

/* --- plane −1: instrument wells sink in --- */
.orrery-stage{
 box-shadow:
  inset 0 0 0 1px rgba(240,233,219,.06),
  inset 0 2px 4px rgba(4,6,20,.7),              /* recessed lip */
  inset 0 0 70px rgba(4,6,20,.55),              /* interior darkness */
  0 1px 0 rgba(240,233,219,.07)}                /* lit bottom rim */
.table-scroll{box-shadow:inset 0 1px 3px rgba(4,6,20,.5);padding:2px}

/* --- figures: matted prints lift off the page --- */
.r-img{box-shadow:
  inset 0 0 0 1px rgba(240,233,219,.07),
  0 3px 8px rgba(6,10,28,.4),
  0 18px 44px rgba(6,10,28,.45);
 transition:transform .4s cubic-bezier(.2,.7,.2,1),box-shadow .4s;overflow:hidden}
.r-img:hover{transform:translateY(-3px);
 box-shadow:inset 0 0 0 1px rgba(240,233,219,.1),0 6px 14px rgba(6,10,28,.45),0 28px 64px rgba(6,10,28,.55)}
.r-img img{transition:transform 1.1s cubic-bezier(.2,.6,.2,1);filter:saturate(1.04) contrast(1.02)}
.r-img:hover img{transform:scale(1.018)}
@media (prefers-reduced-motion:reduce){
 .r-img,.r-img img,.probe-card,.live-card,.lib-card,.path-card,.planet-card{transition:none}
 .r-img:hover,.probe-card:hover,.lib-card:hover,.path-card:hover,.planet-card:hover{transform:none}
 .r-img:hover img{transform:none}}

/* --- chrome: masthead casts, footer plate glows --- */
.masthead{box-shadow:0 10px 30px rgba(6,10,28,.4)}
.masthead::after{box-shadow:0 1px 8px rgba(242,206,133,.25)}

/* --- type: the faintest halation on display accents --- */
h2.sec-title em{text-shadow:0 0 36px rgba(242,206,133,.22)}
.mast-word{text-shadow:0 0 28px rgba(242,206,133,.14)}
.live-card .lc-v{text-shadow:0 0 22px rgba(242,206,133,.2)}

/* --- controls: press physics --- */
button.ia{box-shadow:inset 0 0 0 1px rgba(240,233,219,.2),0 2px 5px rgba(6,10,28,.35)}
button.ia:hover{box-shadow:inset 0 0 0 1px rgba(242,206,133,.6),0 4px 12px rgba(6,10,28,.45)}
button.ia:active{transform:translateY(1px);box-shadow:inset 0 1px 3px rgba(4,6,20,.6)}

/* ledger rows get a whisper of relief */
.facts thead th{border-bottom:1px solid rgba(242,206,133,.28)}
.pc-data div:hover{box-shadow:inset 0 1px 0 rgba(240,233,219,.06)}

/* ============================================================
   v7 — SIGHT PASS · fixes found by actually rendering the site
   ============================================================ */

/* 1 · SPACE, not cobalt: the field goes deep */
:root{--void:#05070F;--ink:#0C1130;--panel:#151B44;--panel-2:#1D2554}
body{background:
 repeating-linear-gradient(0deg, rgba(240,233,219,.016) 0 1px, transparent 1px 110px),
 repeating-linear-gradient(90deg, rgba(240,233,219,.016) 0 1px, transparent 1px 110px),
 radial-gradient(1100px 720px at 18% -8%, rgba(32,40,96,.7) 0%, transparent 62%),
 radial-gradient(900px 640px at 88% 12%, rgba(90,26,80,.22) 0%, transparent 58%),
 radial-gradient(1300px 900px at 50% 118%, rgba(5,7,15,.95) 0%, transparent 60%),
 linear-gradient(180deg,#131A46 0%,var(--ink) 40%,#070A1C 100%);
 background-attachment:fixed}
html::before{filter:blur(2px) brightness(.8)}

/* 2 · masthead: one compact row, not a billboard */
.masthead{padding:.5rem 1.3rem;gap:1.6rem}
.mast-word{font-size:.92rem;letter-spacing:.38em}
.mast-sub{font-size:.46rem}
.masthead .site-nav{gap:.85rem}
.masthead .site-nav a{font-size:.6rem;letter-spacing:.1em;padding:.1rem 0 .32rem}

/* 3 · the empty-window fix: canvases fill their stages; stages hug canvases */
.orrery-stage canvas[width]{display:block;width:100%;height:auto}
.orrery-stage:has(canvas[width]){aspect-ratio:auto;max-height:none;
 background:radial-gradient(circle at 50% 42%,#10163A 0%,#070A1E 78%)}
/* orphaned stages (widget after prose, no column) center like figures */
.wrap>.orrery-stage{max-width:600px;margin-left:auto;margin-right:auto;margin-top:2.4rem}

/* 4 · the lede regression: tagged ledes lost the measure cap — restore it */
p.lede{max-width:62ch;line-height:1.76;color:#E9E3D6;text-wrap:pretty}
p.lede+p:not([class]){text-indent:1.8em;margin-top:.55em}

/* 5 · titles were force-wrapping at 18ch — let them breathe */
h2.sec-title{max-width:none;font-size:clamp(2.3rem,4.4vw,3.6rem)}
.sec-intro{font-size:1.14rem;max-width:52ch;margin-bottom:.6rem}

/* 6 · vertical rhythm: 220px gaps between sections were dead air */
section{padding:76px 0}
main>section:first-child,.chapter>section:first-child{padding-top:56px}

/* 7 · flare-class scale: an instrument readout, not five grey cells */
.flare-scale{gap:0;background:none;border:none;border-top:1px solid rgba(240,233,219,.12);max-width:900px}
.flare{background:none;padding:20px 18px 6px;position:relative}
.flare+.flare::before{content:'';position:absolute;left:0;top:16px;bottom:10px;width:1px;
 background:linear-gradient(rgba(240,233,219,.14),transparent)}
.flare b{font-family:var(--display);font-size:2.1rem;line-height:1;margin-bottom:.35rem}
.flare{font-size:.8rem;color:var(--dim);line-height:1.55}

/* ============================================================
   v8 — INK PASS · a five-step text ramp, temperature-encoded
   Warm = display & emphasis. Cool = reading & meta.
   The eye reads hierarchy from hue before it reads size.
   ============================================================ */
:root{
  --t-display:#F5EFDC;  /* warm cream — headlines, chapter titles, subheads   */
  --t-bright:#E8E3D4;   /* warm high-emphasis — standfirsts, strong, card h3  */
  --t-body:#C6C9D2;     /* cool neutral — long prose (the monotony killer)    */
  --t-muted:#9BA3BE;    /* blue-grey — captions, meta, nav, table secondary   */
  --t-faint:#6E779B;    /* recessive — tick labels, sublines, placeholders    */
  --star:var(--t-display); --dim:var(--t-muted);
}

/* display layer — warm */
h2.sec-title,.chapter-title{color:var(--t-display)}
.x-cols h3,.x-cols-2 h3,.x-cols-3 h3,.edge-cols h3,.probe-card h3,.lib-card h3,
.x-card h3,.rung h3,.sn-type h3,.x-person h3{color:var(--t-display)}
.mast-word{color:var(--t-display)}

/* leads & emphasis — warm, one step down */
.sec-intro{color:var(--t-bright)}
main p:not([class]) strong,p.lede strong{color:var(--t-bright)}
main p:not([class]) i,main p:not([class]) em,p.lede i,p.lede em{color:var(--t-bright)}
.path-card .pc-t{color:var(--t-bright)}
.facts td:first-child{color:var(--t-bright)}
.probe-card header h3{color:var(--t-display)}

/* reading layer — cool neutral (the big shift off cream) */
main p:not([class]),p.lede{color:var(--t-body)}
.probe-card p,.lib-card p,.x-card p,.flare,.x-tension p{color:var(--t-body)}
.pc-data .v{color:var(--t-body)}
.facts td{color:var(--t-body)}

/* meta layer — cooled into the field */
p.fine,.pc-credit,.g-cap,.snap-note,.au-note{color:var(--t-muted)}
.mast-sub,.path-card .pc-d{color:var(--t-faint)}
.masthead .site-nav a{color:var(--t-muted)}
.masthead .site-nav a:hover,.masthead .site-nav a.active{color:var(--gold)}
.eyebrow{color:var(--gold)}           /* labels stay the gold role */
.facts thead th{color:var(--gold)}
.orrery-hud{color:var(--t-faint)}
.journey .jump{color:var(--gold)}
.site-footer .fine{color:var(--t-faint)}

/* telemetry stays gold — the one warm data voice */
.live-card .lc-v{color:var(--gold)}
.live-card .lc-k{color:var(--t-faint)}
.lib-card .lc-tag{color:var(--gold)}

/* v9 · wave5 — 18-room nav fits one row at desktop */
.masthead{gap:1.1rem}
.masthead .site-nav{gap:.72rem}
.masthead .site-nav a{font-size:.57rem;letter-spacing:.08em}
@media(max-width:1180px){.masthead .site-nav{gap:.6rem}.masthead .site-nav a{font-size:.54rem}}
/* two-column almanac ledgers hug their content */
section[id$="-almanac"] .facts{max-width:820px}
section[id$="-almanac"] .facts td:last-child{text-align:left}
section[id$="-almanac"] .facts td:first-child{width:220px;color:var(--gold);font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase}

/* ============================================================
   v9 — MASTHEAD PASS · one calm row + contextual group rail
   ============================================================ */
.masthead{background:rgba(6,9,24,.86);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
 border-bottom:1px solid rgba(240,233,219,.09)}
.masthead .site-nav{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
.masthead .site-nav::-webkit-scrollbar{display:none}
.masthead .site-nav a{white-space:nowrap;font-size:.58rem;letter-spacing:.09em}

/* the annex rail: an instrument strip below the masthead, only inside a group */
.group-rail{position:sticky;top:0;z-index:59;display:flex;align-items:center;gap:1.4rem;
 padding:.42rem 1.3rem;background:rgba(10,14,34,.92);backdrop-filter:blur(8px);
 border-bottom:1px solid rgba(240,233,219,.07);font-family:var(--mono)}
.group-rail .gr-label{color:var(--gold);font-size:.6rem;letter-spacing:.28em;text-transform:uppercase;
 text-decoration:none;position:relative;padding-left:16px}
.group-rail .gr-label::before{content:'';position:absolute;left:0;top:50%;width:10px;height:1px;background:var(--gold)}
.group-rail .gr-links{display:flex;gap:1.15rem;overflow-x:auto;scrollbar-width:none}
.group-rail .gr-links::-webkit-scrollbar{display:none}
.group-rail .gr-links a{color:var(--t-muted);text-decoration:none;font-size:.62rem;letter-spacing:.12em;
 text-transform:uppercase;padding:.18rem 0;border-bottom:1px solid transparent;transition:color .2s}
.group-rail .gr-links a:hover{color:var(--t-bright)}
.group-rail .gr-links a.on{color:var(--gold);border-bottom-color:var(--gold)}
@media(max-width:760px){.group-rail{padding:.42rem .9rem;gap:.9rem}}
/* v9.1 — fit: wordmark is the home link; nav must never clip */
.masthead .site-nav{gap:.78rem;justify-content:flex-end;flex:1;min-width:0}
.masthead .site-nav a{font-size:.57rem}
.mast-brand{flex:none}

/* --- case stamps (anomalies chapter) --- */
.stamp{display:inline-block;font-family:var(--mono);font-size:.58rem;letter-spacing:.16em;
 padding:.14rem .5rem .12rem;border:1px solid;border-radius:2px;vertical-align:2px;margin-left:.4rem}
.st-closed{color:#58C7A6;border-color:rgba(88,199,166,.45);background:rgba(88,199,166,.07)}
.st-partial{color:#5FB9C9;border-color:rgba(42,140,156,.5);background:rgba(42,140,156,.08)}
.st-open{color:#E8A94E;border-color:rgba(232,169,78,.45);background:rgba(232,169,78,.07)}

/* --- 18-chapter masthead: tightening tiers so one row always clears the brand --- */
@media (max-width:1440px){
 .masthead .site-nav{gap:.6rem}
 .masthead .site-nav a{font-size:.55rem;letter-spacing:.07em}
}
@media (max-width:1330px){
 .masthead .site-nav{gap:.5rem}
 .masthead .site-nav a{font-size:.52rem;letter-spacing:.06em}
}