/* Deep Sky Unity Observatory — palette and type follow the original logo page */
:root {
  --bg: #02070b;
  --bg-2: #061219;
  --panel: rgba(6, 22, 30, .72);
  --line: rgba(0, 221, 255, .16);
  --line-strong: rgba(0, 221, 255, .38);
  --cyan: #00ddff;
  --green: #00ff99;
  --text: #dbe7ec;
  --muted: #7f97a1;
  --danger: #ff5c7a;
  --font: 'Saira', 'Helvetica Neue', Arial, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  --gutter: clamp(16px, 4vw, 48px);
  --radius: 2px;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
/* in-page jumps land below the sticky header */
[id] { scroll-margin-top: 90px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 300 17px/1.6 var(--font);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
main { flex: 1; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--cyan); text-decoration: none; }
a:hover { color: var(--green); }
h1, h2, h3 { font-weight: 300; letter-spacing: .04em; line-height: 1.2; margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 5vw, 3.4rem); color: #fff; }
[hidden] { display: none !important; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.mono { font-family: var(--mono); font-size: .82em; letter-spacing: .02em; }
.small { font-size: .85em; }
.muted { color: var(--muted); }
.wrap { width: 100%; max-width: 1320px; margin: 0 auto; padding-inline: var(--gutter); }
.narrow { max-width: 820px; }
.section { padding-block: clamp(32px, 6vw, 72px) 0; }
.eyebrow { font-family: var(--mono); font-size: .75rem; letter-spacing: .25em; text-transform: uppercase; color: var(--green); margin: 0 0 1rem; }
.lead { font-size: 1.15rem; color: var(--text); max-width: 60ch; }

/* faint observatory grid + radial glow, as on the coming-soon page */
.sky {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    linear-gradient(rgba(0, 221, 170, .05) 1px, transparent 1px) 0 0 / 80px 80px,
    linear-gradient(90deg, rgba(0, 221, 170, .05) 1px, transparent 1px) 0 0 / 80px 80px,
    radial-gradient(ellipse at 50% 0%, #00222f 0%, #000a10 55%, var(--bg) 100%);
}

/* ---------- header */
.site-header {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 12px var(--gutter);
  background: rgba(2, 7, 11, .82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 12px; color: #fff; }
.logo-mark { width: 38px; height: 40px; filter: drop-shadow(0 0 4px rgba(0, 221, 255, .6)); }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-size: 1.05rem; letter-spacing: .22em; color: var(--cyan); text-shadow: 0 0 10px rgba(0, 221, 255, .45); }
.brand-sub { font-size: .62rem; letter-spacing: .5em; color: var(--green); }
.site-nav { display: flex; align-items: center; gap: clamp(12px, 2vw, 28px); }
.site-nav a { color: var(--text); font-size: .82rem; letter-spacing: .14em; text-transform: uppercase; padding: 6px 0; border-bottom: 1px solid transparent; }
.site-nav a:hover, .site-nav a[aria-current] { color: var(--cyan); border-bottom-color: var(--cyan); }
.site-nav .lang { font-family: var(--mono); border: 1px solid var(--line-strong); padding: 3px 8px; color: var(--green); }
.nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span:not(.sr) { display: block; width: 22px; height: 1.5px; background: var(--cyan); margin: 5px 0; }

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: rgba(2, 7, 11, .97); border-bottom: 1px solid var(--line);
    padding: 8px var(--gutter) 16px;
    display: none;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .site-nav .lang { align-self: flex-start; margin-top: 12px; }
}

/* ---------- hero */
.hero { position: relative; min-height: min(78vh, 760px); display: flex; align-items: flex-end; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero:not(.has-image) { min-height: 46vh; }
.hero-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity 2.4s ease-in-out, transform 12s linear; transform: scale(1.06); }
.hero-bg.is-active { opacity: .75; transform: scale(1); }
.hero-credit span { transition: opacity .8s; }
.hero-credit.fading span { opacity: 0; }
.hero::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(2, 7, 11, .1) 30%, rgba(2, 7, 11, .92) 100%); }
.hero-inner { position: relative; z-index: 1; padding-block: 0 clamp(28px, 6vw, 64px); }
.hero-title { font-size: clamp(2.4rem, 8vw, 6rem); font-weight: 200; letter-spacing: .14em; color: #fff; text-shadow: 0 0 24px rgba(0, 221, 255, .35); margin: 0 0 .2em; }
.hero-credit { display: inline-block; margin-top: 1rem; font-family: var(--mono); font-size: .8rem; color: var(--muted); }

/* ---------- section titles */
.section-title { display: flex; align-items: baseline; flex-wrap: wrap; gap: .6em; font-size: 1rem; text-transform: uppercase; letter-spacing: .25em; color: #fff; margin-bottom: 1.4rem; }
.section-title span { font-family: var(--mono); color: var(--green); font-size: .8em; letter-spacing: .1em; }
.section-title small { letter-spacing: .05em; text-transform: none; color: var(--muted); }
.section-title::after { content: ''; flex: 1 1 60px; height: 1px; background: linear-gradient(90deg, var(--line-strong), transparent); align-self: center; }
.section-title.small { font-size: .8rem; margin-top: 2.2rem; }

/* ---------- corner-bracket frame (from the logo) */
.card, .pillar-card, .setup-card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .2s, transform .2s;
}
.card::before, .pillar-card::before {
  content: ''; position: absolute; inset: -1px; pointer-events: none; z-index: 2;
  background:
    linear-gradient(var(--green), var(--green)) top left / 14px 1px no-repeat,
    linear-gradient(var(--green), var(--green)) top left / 1px 14px no-repeat,
    linear-gradient(var(--green), var(--green)) bottom right / 14px 1px no-repeat,
    linear-gradient(var(--green), var(--green)) bottom right / 1px 14px no-repeat;
  opacity: 0; transition: opacity .2s;
}
.card:hover, .pillar-card:hover { border-color: var(--line-strong); }
.card:hover::before, .pillar-card:hover::before { opacity: 1; }

/* ---------- pillars */
.pillar-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); gap: 20px; }
.pillar-card { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 3fr); color: var(--text); min-height: 220px; overflow: hidden; }
.pillar-img { background: #000 radial-gradient(circle at 50% 50%, #04202b, #000 70%); }
.pillar-img img { width: 100%; height: 100%; object-fit: cover; }
.pillar-body { display: flex; flex-direction: column; gap: .6rem; padding: 20px; }
.pillar-name { font-size: 1.6rem; color: #fff; letter-spacing: .08em; }
.pillar-equip { display: flex; flex-direction: column; font-size: .92rem; }
.pillar-foot { color: var(--muted); }
.pillar-cta { margin-top: auto; color: var(--cyan); font-size: .8rem; letter-spacing: .15em; text-transform: uppercase; }
@media (max-width: 520px) { .pillar-card { grid-template-columns: 1fr; } .pillar-img { aspect-ratio: 16 / 9; } }

/* ---------- gallery */
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr)); gap: 16px; }
.card { display: flex; flex-direction: column; color: var(--text); overflow: hidden; }
.card-img { aspect-ratio: 4 / 3; overflow: hidden; background: #000; }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.card:hover .card-img img { transform: scale(1.04); }
.card-body { display: flex; flex-direction: column; padding: 12px 14px 14px; gap: 2px; }
.card-title { color: #fff; font-size: 1.02rem; }
.card-meta { font-family: var(--mono); font-size: .72rem; color: var(--muted); }

.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.chip {
  font: 400 .72rem/1 var(--mono); letter-spacing: .08em; text-transform: uppercase;
  color: var(--text); background: rgba(0, 0, 0, .4); border: 1px solid var(--line-strong);
  padding: 8px 12px; cursor: pointer; border-radius: var(--radius);
}
.chip:hover { border-color: var(--cyan); color: var(--cyan); }
.chip[aria-pressed="true"] { background: rgba(0, 255, 153, .12); border-color: var(--green); color: var(--green); }

/* ---------- setup card */
.setup-card { padding: clamp(16px, 3vw, 28px); }
.equip-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 240px), 1fr)); gap: 18px 28px; margin: 0; }
.equip dt { font-family: var(--mono); font-size: .68rem; letter-spacing: .2em; text-transform: uppercase; color: var(--green); margin-bottom: 2px; }
.equip dd { margin: 0; display: flex; flex-direction: column; }
.equip-name { color: #fff; }
.equip-meta { font-size: .82rem; color: var(--muted); }
.spec-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 1px; margin-top: 22px; background: var(--line); border: 1px solid var(--line); }
.spec { background: var(--bg-2); padding: 12px 14px; display: flex; flex-direction: column; }
.spec-k { font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.spec-v { font-family: var(--mono); font-size: 1.1rem; color: var(--cyan); }
.past-setups { margin-top: 20px; }
.past-setups summary { cursor: pointer; color: var(--muted); font-size: .85rem; letter-spacing: .12em; text-transform: uppercase; }
.past-setups .setup-card { margin-bottom: 16px; }
.setup-name { font-size: 1.05rem; margin-top: 1.4rem; }
.setup-name small { color: var(--muted); }

/* ---------- pillar page */
.pillar-head { padding-top: clamp(32px, 6vw, 72px); }

/* ---------- image page */
.viewer { position: relative; margin: 0; background: #000; border-bottom: 1px solid var(--line); }
.viewer-img { margin: 0 auto; max-height: calc(100vh - 140px); width: auto; cursor: zoom-in; }
.viewer-tools { position: absolute; right: var(--gutter); bottom: 16px; display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; }
.seg { display: flex; }
.seg .chip + .chip { border-left: 0; }
.image-info { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 380px); gap: clamp(24px, 5vw, 64px); padding-block: clamp(28px, 5vw, 56px); }
@media (max-width: 900px) { .image-info { grid-template-columns: 1fr; } }
.facts { margin: 0 0 1rem; border-top: 1px solid var(--line); }
.facts div { display: flex; justify-content: space-between; gap: 1rem; padding: 10px 0; border-bottom: 1px solid var(--line); }
.facts dt { color: var(--muted); font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; }
.facts dd { margin: 0; text-align: right; font-family: var(--mono); font-size: .88rem; color: #fff; }
.image-side .setup-card { padding: 16px; }
.image-side .equip-list { grid-template-columns: 1fr; gap: 12px; }
.image-side .spec-row { grid-template-columns: 1fr 1fr; }
.table-wrap { overflow-x: auto; }
.exp-table { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: .85rem; }
.exp-table th { text-align: left; font-weight: 400; color: var(--muted); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; }
.exp-table th, .exp-table td { padding: 9px 10px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.exp-table .num { text-align: right; }
.exp-table tfoot td { color: var(--cyan); border-bottom: 0; }
.prev-next { display: flex; justify-content: space-between; gap: 1rem; padding-block: 0 48px; font-size: .9rem; }
.prev-next a:nth-child(2) { text-align: center; }

/* ---------- lightbox */
.lightbox { position: fixed; inset: 0; z-index: 50; background: #000; display: flex; }
.lightbox-stage { flex: 1; overflow: auto; cursor: grab; display: flex; }
.lightbox-stage.dragging { cursor: grabbing; }
.lightbox-stage img { margin: auto; max-width: none; user-select: none; -webkit-user-drag: none; }
.lightbox-stage.fit img { max-width: 100%; max-height: 100%; object-fit: contain; cursor: zoom-in; }
.lightbox-close { position: fixed; top: calc(12px + env(safe-area-inset-top, 0px)); right: 16px; z-index: 2; width: 44px; height: 44px; font-size: 28px; line-height: 1; color: #fff; background: rgba(0, 0, 0, .6); border: 1px solid var(--line-strong); cursor: pointer; }

/* ---------- live panel: telemetry on the left, all-sky above the 3D view on the right */
.live-panel {
  display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  grid-template-areas: "tm sky" "tm obs";
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.lp-telemetry { grid-area: tm; border-right: 1px solid var(--line); }
.lp-allsky { grid-area: sky; border-bottom: 1px solid var(--line); }
.lp-3d { grid-area: obs; }
@media (max-width: 760px) {
  .live-panel { grid-template-columns: 1fr; grid-template-areas: "sky" "obs" "tm"; }
  .lp-telemetry { border-right: 0; border-top: 1px solid var(--line); }
  .lp-3d { border-bottom: 0; }
}
.lp-tile { display: flex; flex-direction: column; color: var(--text); min-width: 0; }
.lp-media { position: relative; display: block; aspect-ratio: 16 / 10; background: #000; overflow: hidden; }
.lp-allsky .lp-media img { width: 100%; height: 100%; object-fit: contain; } /* fisheye: show the whole sky circle */
.lp-caption { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 10px 14px; border-top: 1px solid var(--line); font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.lp-caption .status { margin-left: 6px; }
a.lp-tile:hover .lp-caption { color: var(--cyan); }
.lp-telemetry { padding: clamp(16px, 2.5vw, 28px); font-size: .9rem; min-width: 0; }
.tm-cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); gap: 0 28px; }
.tm-head { display: flex; flex-wrap: wrap; gap: 10px 18px; }
.tm-time { color: var(--muted); margin: 8px 0 0; }
.tm-title { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; margin: 18px 0 6px; font-size: .7rem; letter-spacing: .22em; text-transform: uppercase; color: var(--green); }
.tm-list { margin: 0; }
.tm-list div { display: flex; justify-content: space-between; gap: 12px; padding: 4px 0; border-bottom: 1px solid rgba(0, 221, 255, .08); }
.tm-list dt { color: var(--muted); }
.tm-list dd { margin: 0; font-family: var(--mono); font-size: .85rem; color: #fff; text-align: right; }
.pstate { font-family: var(--mono); font-size: .68rem; letter-spacing: .12em; color: var(--muted); }
.pstate-tracking, .pstate-slewing, .pstate-connected { color: var(--green); }
.pstate-parked { color: #3db8ff; }

.status { font-family: var(--mono); font-size: .75rem; letter-spacing: .2em; display: inline-flex; align-items: center; gap: 8px; }
.status::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: currentColor; box-shadow: 0 0 8px currentColor; }
.status.on { color: var(--green); }
.status.off { color: var(--danger); }
.status.roof-closed { color: #3db8ff; }
.status.roof-opened { color: var(--green); }
.status.roof-opening, .status.roof-closing { color: #ffbf47; }
.status.roof-stopped, .status.roof-error { color: var(--danger); }

/* the 3D view is an iframe from /obs/ (app/obs.php) */
.obs-stage { background: radial-gradient(ellipse at 50% 30%, #0c1a24, #03080c 75%); }
.obs-stage iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; background: transparent;
  /* must match the embedded page's colour scheme, otherwise browsers paint the iframe opaque white */
  color-scheme: normal; }

/* ---------- prose */
.prose { color: var(--text); }
.prose p, .prose ul { margin: 0 0 1em; max-width: 70ch; }
.prose h2 { font-size: 1.3rem; margin-top: 1.8em; color: #fff; }
.prose h3 { font-size: 1.1rem; margin-top: 1.4em; color: #fff; }
.prose strong { font-weight: 500; color: #fff; }
.prose-page { padding-block: clamp(32px, 6vw, 72px); }
.btn { display: inline-block; font: 400 .75rem/1 var(--mono); letter-spacing: .15em; text-transform: uppercase; padding: 12px 18px; border: 1px solid var(--cyan); color: var(--cyan); }
.btn:hover { background: rgba(0, 221, 255, .1); }
.page-404 { padding-block: 12vh; }

/* ---------- all-sky page (Shadow DOM block, styles in allsky.css) */
.allsky-host { display: block; }
body.lb-open { overflow: hidden; } /* all-sky lightbox open */

/* ---------- all-sky live view zoomed on the home page (mirrors the all-sky page's lightbox) */
.sky-lb { position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center; padding: 24px; animation: skyLbFade .18s ease; }
.sky-lb-backdrop { position: absolute; inset: 0; cursor: zoom-out; backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  background: radial-gradient(ellipse at center, rgba(0, 24, 36, .85) 0%, rgba(0, 4, 8, .96) 70%), rgba(0, 0, 0, .4); }
.sky-lb-frame { position: relative; max-width: min(96vw, 1600px); max-height: 92vh; display: flex; flex-direction: column;
  background: rgba(8, 16, 22, .85); border: 1px solid var(--line-strong);
  box-shadow: 0 0 40px rgba(0, 221, 255, .18), 0 0 120px rgba(0, 221, 255, .08); animation: skyLbScale .28s cubic-bezier(.18, .9, .3, 1); }
.sky-lb-frame::before { content: ''; position: absolute; inset: -8px; pointer-events: none; filter: drop-shadow(0 0 6px rgba(0, 221, 255, .6));
  background:
    linear-gradient(var(--cyan), var(--cyan)) top left / 28px 2px no-repeat, linear-gradient(var(--cyan), var(--cyan)) top left / 2px 28px no-repeat,
    linear-gradient(var(--cyan), var(--cyan)) top right / 28px 2px no-repeat, linear-gradient(var(--cyan), var(--cyan)) top right / 2px 28px no-repeat,
    linear-gradient(var(--cyan), var(--cyan)) bottom left / 28px 2px no-repeat, linear-gradient(var(--cyan), var(--cyan)) bottom left / 2px 28px no-repeat,
    linear-gradient(var(--cyan), var(--cyan)) bottom right / 28px 2px no-repeat, linear-gradient(var(--cyan), var(--cyan)) bottom right / 2px 28px no-repeat; }
.sky-lb-header { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 18px; padding: 12px 20px; border-bottom: 1px solid var(--line); background: rgba(0, 0, 0, .55); }
.sky-lb-title { font-family: var(--mono); font-size: 12px; letter-spacing: .22em; text-transform: uppercase; color: var(--cyan); }
.sky-lb-meta { flex: 1; font-family: var(--mono); font-size: 11px; color: var(--muted); }
.sky-lb-more { font-family: var(--mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
.sky-lb-close { width: 30px; height: 30px; display: grid; place-items: center; background: transparent; border: 1px solid var(--line); color: var(--cyan); cursor: pointer; border-radius: 2px; }
.sky-lb-close svg { width: 12px; height: 12px; }
.sky-lb-close:hover { border-color: var(--cyan); background: rgba(0, 221, 255, .08); box-shadow: 0 0 12px rgba(0, 221, 255, .4); }
.sky-lb-body { display: flex; align-items: center; justify-content: center; background: #000; overflow: hidden; min-height: 0; }
.sky-lb-body img { max-width: 100%; max-height: calc(92vh - 88px); object-fit: contain; }
.sky-lb-footer { padding: 8px 20px; font-family: var(--mono); font-size: 10px; letter-spacing: .2em; text-transform: uppercase; text-align: center; color: var(--muted); border-top: 1px solid var(--line); background: rgba(0, 0, 0, .45); }
@keyframes skyLbFade { from { opacity: 0; } to { opacity: 1; } }
@keyframes skyLbScale { from { opacity: 0; transform: scale(.96); } to { opacity: 1; transform: scale(1); } }

/* ---------- footer */
.site-footer { margin-top: clamp(48px, 8vw, 96px); padding: 28px var(--gutter) calc(28px + env(safe-area-inset-bottom, 0px)); border-top: 1px solid var(--line); text-align: center; color: var(--muted); font-size: .78rem; }
.footer-mark { font-family: var(--mono); color: var(--green); opacity: .6; letter-spacing: .2em; margin-bottom: 8px; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }