/* Henderson Astrophotography — images.thgnetworks.com
   Shared thgnetworks.com astronomy skin. M31 photo background dropped (gallery). */

/* ==========================================================================
   images.thgnetworks.com — STRUCTURE PREVIEW (all six templates)
   Shared thgnetworks.com astronomy skin. M31 photo background dropped.
   Display: Audiowide  Body/UI: Exo 2  Mono: IBM Plex Mono  Accent: #2F78BD
   Views switch client-side from a small sample feed — same shape as the real
   JSON feed. Placeholder tiles are drawn on <canvas>; the M31 frames are real.
   ========================================================================== */

:root {
  --bg:#eef3f9; --panel:#ffffff; --card-bg:rgba(255,255,255,0.82); --panel-2:#f5f8fc;
  --line:#c9d5e6; --line-soft:#dde6f1;
  --ink:#111823; --ink-dim:#3f4a5e; --ink-faint:#6a7688;
  --accent:#2f78bd; --accent-ink:#ffffff; --asterism-ink:#1f5688;
  --wordmark-glow:none; --radius:14px; --maxw:940px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:#0a0e16; --panel:#131b28; --card-bg:rgba(17,24,37,0.64); --panel-2:#0f1622;
    --line:#26324a; --line-soft:#1b2436;
    --ink:#e9eef8; --ink-dim:#9aa6be; --ink-faint:#606d86;
    --accent:#2f78bd; --accent-ink:#ffffff; --asterism-ink:#7cb8ea;
    --wordmark-glow:0 0 40px rgba(47,120,189,0.45), 0 0 90px rgba(47,120,189,0.20);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg:#0a0e16; --panel:#131b28; --card-bg:rgba(17,24,37,0.64); --panel-2:#0f1622;
  --line:#26324a; --line-soft:#1b2436;
  --ink:#e9eef8; --ink-dim:#9aa6be; --ink-faint:#606d86;
  --accent:#2f78bd; --accent-ink:#ffffff; --asterism-ink:#7cb8ea;
  --wordmark-glow:0 0 40px rgba(47,120,189,0.45), 0 0 90px rgba(47,120,189,0.20);
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg:#eef3f9; --panel:#ffffff; --card-bg:rgba(255,255,255,0.82); --panel-2:#f5f8fc;
  --line:#c9d5e6; --line-soft:#dde6f1;
  --ink:#111823; --ink-dim:#3f4a5e; --ink-faint:#6a7688;
  --accent:#2f78bd; --accent-ink:#ffffff; --asterism-ink:#1f5688;
  --wordmark-glow:none; color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Exo 2", "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--ink); background-color: var(--bg);
  line-height: 1.62; -webkit-font-smoothing: antialiased; min-height: 100vh;
}
a { color: var(--accent); }
a:hover { text-decoration: none; }
.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent); color: var(--accent-ink);
  padding: 0.6rem 1rem; border-radius: 0 0 8px 0; z-index: 40;
}
.skip:focus { left: 0; }
:where(a, button, input, select):focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px;
}

#sky {
  position: fixed; inset: 0; z-index: 0; pointer-events: none; display: block; opacity: 0.5;
}

/* ---- header ------------------------------------------------------- */
.site-head, main, .site-foot {
  position: relative; z-index: 1;
  max-width: var(--maxw); margin-inline: auto;
  padding-inline: clamp(1.1rem, 4vw, 2rem);
}
.site-head { padding-top: clamp(1.2rem, 3vw, 2rem); padding-bottom: 1.5rem; }
.head-top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: flex; align-items: center; gap: 0.95rem; min-width: 0; }

.asterism { position: relative; z-index: 1; flex: none; display: block; width: 90px; text-decoration: none; }
.asterism-mark {
  display: block; width: 90px; aspect-ratio: 2056 / 1755;
  background: var(--asterism-ink);
  -webkit-mask: url("pleiades.png") center / contain no-repeat;
  mask: url("pleiades.png") center / contain no-repeat;
  filter: drop-shadow(0 0 8px rgba(47,120,189,0.38));
  transition: filter 0.3s ease, transform 0.3s ease;
}
.asterism:hover .asterism-mark, .asterism:focus-visible .asterism-mark {
  filter: drop-shadow(0 0 14px rgba(47,120,189,0.65)); transform: translateY(-2px);
}
.asterism-tip {
  position: absolute; left: 50%; top: calc(100% + 6px);
  transform: translateX(-50%) translateY(4px);
  font-family: "Audiowide", "Arial Narrow", sans-serif;
  font-size: 0.55rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--accent); white-space: nowrap; pointer-events: none;
  opacity: 0; transition: opacity 0.3s ease, transform 0.3s ease;
}
.asterism:hover .asterism-tip, .asterism:focus-visible .asterism-tip {
  opacity: 1; transform: translateX(-50%) translateY(0);
}

.wordmark {
  font-family: "Audiowide", "Arial Narrow", sans-serif;
  font-weight: 400; font-size: clamp(1.5rem, 5.5vw, 3rem);
  line-height: 1.14; letter-spacing: 0.02em;
  color: var(--accent); margin: 0; max-width: 18ch;
  overflow-wrap: anywhere; text-shadow: var(--wordmark-glow);
  text-decoration: none; display: inline-block;
}
.tagline {
  font-family: "Audiowide", "Arial Narrow", sans-serif;
  font-size: clamp(0.78rem, 2vw, 0.98rem);
  letter-spacing: 0.04em; color: var(--ink-dim); margin: 0.85rem 0 0;
}
.theme-toggle {
  flex: none; font-size: 1.05rem; line-height: 1;
  width: 2.4rem; height: 2.4rem; display: grid; place-items: center;
  background: var(--card-bg); color: var(--ink-dim);
  border: 1px solid var(--line); border-radius: 999px; cursor: pointer;
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  transition: color 0.15s ease, border-color 0.15s ease;
}
.theme-toggle:hover { color: var(--ink); border-color: var(--ink-dim); }

.site-nav {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 1.25rem;
  margin-top: 1.6rem; padding-top: 1.2rem;
  border-top: 1px solid var(--line-soft);
  font-family: "Audiowide", "Arial Narrow", sans-serif;
  font-size: 0.8rem; letter-spacing: 0.07em;
}
.site-nav a {
  color: var(--ink-dim); text-decoration: none;
  padding-bottom: 0.35rem; border-bottom: 2px solid transparent;
}
.site-nav a:hover { color: var(--ink); }
.site-nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }

/* ---- main / views ---------------------------------------------- */
main { padding-top: 2.25rem; padding-bottom: 3rem; }
.view[hidden] { display: none; }

.crumb {
  font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--ink-faint); margin: 0 0 1.3rem;
}
.crumb a { color: var(--ink-dim); text-decoration: none; }
.crumb a:hover { color: var(--ink); }

/* ---- HOME / HPOD ---------------------------------------------- */
#view-home { text-align: center; }
.hpod-eyebrow {
  font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--accent); margin: 0 0 1.1rem;
}
.hpod-frame {
  position: relative; display: block; margin: 0 auto; max-width: 400px;
  border: 1px solid var(--line); border-top: 3px solid var(--accent);
  border-radius: var(--radius); overflow: hidden;
  background: var(--card-bg);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 22px 60px -30px rgba(6,10,20,0.55);
}
.hpod-frame img, .hpod-frame canvas { display: block; width: 100%; height: auto; }
.media-link { display: block; cursor: zoom-in; }
.media-zoom {
  position: absolute; left: 0.7rem; bottom: 0.7rem;
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  font-size: 0.66rem; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.4rem 0.7rem;
  background: rgba(10,14,22,0.5); color: #eef2f8;
  border: 1px solid rgba(255,255,255,0.16); border-radius: 999px;
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  opacity: 0; transition: opacity 0.18s ease; pointer-events: none;
}
.media-zoom .glyph { font-family: "Exo 2", sans-serif; font-size: 0.85rem; }
.hpod-frame:hover .media-zoom, .img-hero:hover .media-zoom,
.media-link:focus-visible .media-zoom { opacity: 1; }
.media-info {
  position: absolute; right: 0.7rem; top: 0.7rem;
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.45rem 0.72rem;
  background: rgba(10,14,22,0.6); color: #eef2f8;
  border: 1px solid rgba(255,255,255,0.18); border-radius: 999px;
  cursor: pointer; backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  transition: background 0.15s ease; z-index: 3;
}
.media-info:hover { background: rgba(10,14,22,0.82); }
.media-info .glyph {
  display: grid; place-items: center; width: 1.05rem; height: 1.05rem;
  border-radius: 999px; border: 1px solid currentColor;
  font-size: 0.7rem; font-family: "Exo 2", sans-serif;
}
.hpod-caption { margin: 1.2rem 0 0; }
.hpod-title { font-family: "Audiowide", "Arial Narrow", sans-serif; font-weight: 400; font-size: clamp(1.15rem, 3.2vw, 1.55rem); color: var(--ink); margin: 0; }
.hpod-meta { font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace; font-size: 0.8rem; color: var(--ink-dim); margin: 0.45rem 0 0; font-variant-numeric: tabular-nums; }
.lede { font-size: clamp(0.98rem, 2vw, 1.12rem); color: var(--ink-dim); max-width: 46ch; margin: 2rem auto 1.5rem; text-wrap: balance; }
.cta {
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-family: "Audiowide", "Arial Narrow", sans-serif;
  font-size: 0.82rem; letter-spacing: 0.08em; padding: 0.95rem 1.7rem;
  color: var(--accent-ink); background: var(--accent);
  border: 1px solid var(--accent); border-radius: 999px; text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.cta:hover { transform: translateY(-2px); box-shadow: 0 14px 34px -14px rgba(47,120,189,0.6); }

/* ---- GALLERY ------------------------------------------------- */
.gal { display: grid; grid-template-columns: 208px minmax(0, 1fr); gap: 1.9rem; }
.gal-main { min-width: 0; }
@media (max-width: 720px) { .gal { grid-template-columns: 1fr; } }
.events-intro { color: var(--ink-dim); max-width: 54ch; margin: 0 0 1.5rem; }
.facet { margin: 0 0 1.35rem; }
.facet h3 {
  font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  font-size: 0.62rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink-faint); margin: 0 0 0.6rem;
}
.facet-opts { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.pill {
  font-family: "Exo 2", sans-serif; font-size: 0.76rem;
  padding: 0.32rem 0.66rem; border-radius: 999px;
  border: 1px solid var(--line); background: var(--card-bg);
  color: var(--ink-dim); cursor: pointer; transition: background 0.12s ease, color 0.12s ease;
}
.pill:hover { color: var(--ink); }
.pill[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.facet-note {
  font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  font-size: 0.62rem; color: var(--ink-faint); margin: 0.6rem 0 0; line-height: 1.6;
}
.gal-controls { display: flex; flex-wrap: wrap; gap: 0.8rem; align-items: center; margin-bottom: 1.2rem; }
.gal-search {
  flex: 1 1 220px; font-family: "Exo 2", sans-serif; font-size: 0.9rem;
  padding: 0.55rem 0.85rem; border-radius: 999px;
  border: 1px solid var(--line); background: var(--panel); color: var(--ink);
}
.gal-sort {
  font-family: "Exo 2", sans-serif; font-size: 0.85rem;
  padding: 0.5rem 0.7rem; border-radius: 8px;
  border: 1px solid var(--line); background: var(--panel); color: var(--ink);
}
.gal-count { font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace; font-size: 0.72rem; color: var(--ink-faint); margin-left: auto; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 1rem; }
.tile {
  position: relative; border: 1px solid var(--line); border-radius: 12px;
  overflow: hidden; background: var(--card-bg); display: flex; flex-direction: column;
}
.tile-imgwrap { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: #05070c; }
.tile-imgwrap img, .tile-imgwrap canvas { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.tile-body { padding: 0.7rem 0.8rem 0.85rem; }
.tile-name { font-family: "Audiowide", "Arial Narrow", sans-serif; font-size: 0.8rem; color: var(--ink); margin: 0; }
.tile-meta { font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace; font-size: 0.67rem; color: var(--ink-dim); margin: 0.3rem 0 0; }
.tile-link { position: absolute; inset: 0; z-index: 1; }
.tile-badge {
  position: absolute; left: 0.4rem; top: 0.4rem; z-index: 2;
  font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  font-size: 0.58rem; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.2rem 0.44rem; border-radius: 999px;
  background: rgba(10,14,22,0.62); color: #eef2f8;
}
.tile-info {
  position: absolute; right: 0.4rem; top: 0.4rem; z-index: 2;
  display: inline-flex; align-items: center; gap: 0.34rem;
  font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  font-size: 0.62rem; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.32rem 0.55rem;
  border-radius: 999px; border: 1px solid rgba(255,255,255,0.18);
  background: rgba(10,14,22,0.6); color: #eef2f8;
  cursor: pointer; backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  transition: background 0.15s ease;
}
.tile-info:hover { background: rgba(10,14,22,0.85); }
.tile-info .glyph {
  display: grid; place-items: center; width: 0.92rem; height: 0.92rem;
  border-radius: 999px; border: 1px solid currentColor;
  font-size: 0.62rem; font-family: "Exo 2", sans-serif;
}

/* ---- DETAIL (image / target / session) --------------------- */
.detail { max-width: 780px; }
.img-hero {
  position: relative; max-width: 400px; border: 1px solid var(--line); border-top: 3px solid var(--accent);
  border-radius: var(--radius); overflow: hidden;
}
.img-hero img, .img-hero canvas { display: block; width: 100%; height: auto; }
.pn-bar {
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  margin: 0.9rem 0 0;
  font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace; font-size: 0.76rem;
}
.pn-bar a { color: var(--ink-dim); text-decoration: none; }
.pn-bar a:hover { color: var(--ink); }
.pn-bar a[aria-disabled="true"] { opacity: 0.32; pointer-events: none; }
.detail-title { font-family: "Audiowide", "Arial Narrow", sans-serif; font-weight: 400; font-size: clamp(1.15rem, 3vw, 1.5rem); color: var(--ink); margin: 1.1rem 0 0.3rem; }
.detail-sub { font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace; font-size: 0.8rem; color: var(--ink-dim); margin: 0 0 1.2rem; }
.detail-prose { color: var(--ink-dim); max-width: 62ch; margin: 0 0 1.5rem; }
.detail-links { display: flex; flex-wrap: wrap; gap: 1.3rem; font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace; font-size: 0.78rem; margin: 1.4rem 0 0; }
.detail-links a { color: var(--accent); text-decoration: none; }
.detail-links a:hover { text-decoration: underline; }
.rights-line {
  font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  font-size: 0.68rem; color: var(--ink-faint); line-height: 1.7;
  margin: 1.4rem 0 0; padding-top: 1rem; border-top: 1px solid var(--line-soft);
}
.rights-line a { color: var(--accent); text-decoration: none; }

.acq { border-top: 1px solid var(--line-soft); padding-top: 1.1rem; margin-top: 1.5rem; }
.acq h3 {
  font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  font-size: 0.66rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-faint); margin: 0 0 0.8rem;
}
.acq dl { margin: 0; display: grid; grid-template-columns: max-content 1fr; gap: 0.5rem 1.2rem; font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace; font-size: 0.82rem; }
.acq dt { color: var(--ink-faint); }
.acq dd { margin: 0; color: var(--ink); font-variant-numeric: tabular-nums; }

.identity { margin: 0 0 1.4rem; }
.identity .kind { font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace; font-size: 0.76rem; color: var(--ink-dim); margin: 0.3rem 0 0; }

.progression { margin-top: 1.8rem; }
.progression h3 {
  font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  font-size: 0.66rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink-faint); margin: 0 0 0.8rem;
}
.prog-row { display: flex; gap: 0.85rem; overflow-x: auto; padding-bottom: 0.5rem; }
.prog-item { flex: 0 0 148px; text-decoration: none; }
.prog-thumb { position: relative; aspect-ratio: 4 / 3; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: #05070c; }
.prog-thumb img, .prog-thumb canvas { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.prog-item.is-current .prog-thumb { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.prog-cap { font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace; font-size: 0.66rem; color: var(--ink-dim); margin-top: 0.4rem; }
.prog-total { font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace; font-size: 0.72rem; color: var(--ink-faint); margin: 0.7rem 0 0; }

.frames-h {
  font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  font-size: 0.66rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink-faint); margin: 1.8rem 0 0.8rem;
}

/* ---- ABOUT ------------------------------------------------- */
.about-view { max-width: 64ch; }
.about-view h2 { font-family: "Audiowide", "Arial Narrow", sans-serif; font-weight: 400; font-size: 1.05rem; color: var(--ink); margin: 2rem 0 0.6rem; }
.about-view h2:first-of-type { margin-top: 0; }
.about-view p { color: var(--ink-dim); }
.about-view .tools { font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace; font-size: 0.8rem; color: var(--ink-dim); line-height: 1.5; }
.about-view .tools div { padding: 0.32rem 0; border-bottom: 1px solid var(--line-soft); }
.about-view .rights-block {
  margin-top: 1rem; padding: 1.1rem 1.2rem; border: 1px solid var(--line-soft);
  border-left: 3px solid var(--accent); border-radius: 10px;
  background: var(--panel-2); color: var(--ink-dim); font-size: 0.92rem;
}

/* ---- info sheet ------------------------------------------ */
.sheet {
  width: min(560px, 92vw); max-height: 86vh; padding: 0;
  border: 1px solid var(--line); border-top: 3px solid var(--accent);
  border-radius: var(--radius); background: var(--panel); color: var(--ink);
  box-shadow: 0 40px 120px -40px rgba(0,0,0,0.6);
}
.sheet::backdrop { background: rgba(6,10,20,0.62); }
.sheet-body { padding: clamp(1.3rem, 3.5vw, 2rem); overflow-y: auto; max-height: 86vh; }
.sheet-close-row { display: flex; justify-content: flex-end; margin: 0; }
.sheet-close {
  background: none; border: 1px solid var(--line); color: var(--ink-dim);
  border-radius: 999px; width: 2rem; height: 2rem; font-size: 0.9rem; cursor: pointer; line-height: 1;
}
.sheet-close:hover { color: var(--ink); border-color: var(--ink-dim); }
.sheet h2 { font-family: "Audiowide", "Arial Narrow", sans-serif; font-weight: 400; font-size: 1.15rem; margin: 0.2rem 0 0.15rem; color: var(--ink); }
.sheet-sub { font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace; font-size: 0.74rem; color: var(--ink-faint); margin: 0 0 1rem; }
.sheet-prose { color: var(--ink-dim); font-size: 0.95rem; margin: 0 0 1.4rem; }
.sheet .acq { margin-top: 0; }
.sheet-foot {
  margin: 1.4rem 0 0; padding-top: 1rem; border-top: 1px solid var(--line-soft);
  font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  font-size: 0.68rem; color: var(--ink-faint); line-height: 1.7;
}
.sheet-foot a { color: var(--accent); text-decoration: none; }

/* ---- footer ------------------------------------------ */
.site-foot {
  border-top: 1px solid var(--line); padding-top: 1.6rem; padding-bottom: 3.4rem;
  color: var(--ink-dim); font-size: 0.85rem;
}
.site-foot p { margin: 0.2rem 0; }
.site-foot a { color: var(--accent); text-decoration: none; }
.site-foot .fine {
  color: var(--ink-faint); font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  font-size: 0.72rem; letter-spacing: 0.03em; line-height: 1.8;
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
  .asterism-tip { transition: opacity 0.01s; }
}

/* ---- loading + empty ------------------------------------ */
.loading { text-align:center; color:var(--ink-faint); font-family:"IBM Plex Mono",ui-monospace,Menlo,monospace; font-size:.8rem; padding:3rem 0; }
.empty { color:var(--ink-dim); padding:2rem 0; }