/* ============================================================
   APHELION INSTITUTE — Design tokens
   Palette: deep space indigo, starlight gold, nebula cyan
   Type: Fraunces (display) / Inter (body) / IBM Plex Mono (data)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,300;9..144,400;9..144,500;9..144,600&family=Inter:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  --void:        #0B0F1A;
  --void-raised: #121729;
  --card:        #171f38;
  --card-hover:  #1c2542;
  --ink:         #EDEFF7;
  --ink-muted:   #93A0C2;
  --ink-faint:   #5C6684;
  --gold:        #E7B75F;
  --gold-dim:    #a8863f;
  --cyan:        #5FD8C9;
  --line:        #262f4d;
  --line-soft:   #1b2340;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', monospace;

  --wrap: 1180px;
  --radius: 3px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin:0;
  background: var(--void);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

a{ color: var(--cyan); text-decoration: none; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

img{ max-width: 100%; display:block; }

.wrap{
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- Typography ---------- */

h1, h2, h3, h4{
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
  margin: 0 0 0.5em;
  color: var(--ink);
}

h1{ font-size: clamp(2.4rem, 5vw, 4.2rem); font-weight: 400; letter-spacing: -0.01em; }
h2{ font-size: clamp(1.7rem, 3vw, 2.5rem); }
h3{ font-size: 1.35rem; }
h4{ font-size: 1.05rem; }

p{ margin: 0 0 1.1em; color: var(--ink-muted); max-width: 62ch; }
p.lede{ font-size: 1.15rem; color: var(--ink); max-width: 56ch; }

.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 1em;
}
.eyebrow::before{
  content: '';
  width: 22px;
  height: 1px;
  background: var(--gold-dim);
  display: inline-block;
}
.eyebrow.cyan{ color: var(--cyan); }
.eyebrow.cyan::before{ background: #2c8a7d; }
.eyebrow.muted{ color: var(--ink-faint); }
.eyebrow.muted::before{ background: var(--line); }

.coord{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
  letter-spacing: 0.02em;
}

/* ---------- Header / Nav ---------- */

.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11,15,26,0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}

.site-header .wrap{
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand{
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--ink);
  letter-spacing: 0.01em;
}
.brand:hover{ color: var(--ink); }
.brand-mark{
  width: 30px; height: 30px;
  border: 1px solid var(--gold-dim);
  border-radius: 50%;
  position: relative;
  flex-shrink: 0;
}
.brand-mark::before{
  content:'';
  position: absolute;
  top: 50%; left: 50%;
  width: 5px; height: 5px;
  background: var(--gold);
  border-radius: 50%;
  transform: translate(-50%,-50%);
  box-shadow: 0 0 6px 1px rgba(231,183,95,0.6);
}
.brand-mark::after{
  content:'';
  position: absolute;
  top: 3px; left: 3px; right: 3px; bottom: 3px;
  border: 1px solid var(--line);
  border-radius: 50%;
  transform: rotate(-20deg) scaleY(0.5);
}
.brand small{
  display:block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--ink-faint);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 2px;
}

nav.main-nav{
  display: flex;
  gap: 30px;
}
nav.main-nav a{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-muted);
  padding: 8px 0;
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}
nav.main-nav a:hover, nav.main-nav a.active{
  color: var(--ink);
  border-color: var(--gold);
}

.nav-toggle{
  display:none;
  background: none;
  border: 1px solid var(--line);
  color: var(--ink);
  width: 40px; height: 40px;
  border-radius: var(--radius);
  cursor: pointer;
}

@media (max-width: 860px){
  nav.main-nav{
    position: fixed;
    inset: 76px 0 0 0;
    background: var(--void);
    flex-direction: column;
    padding: 30px 32px;
    gap: 22px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease, transform .2s ease;
  }
  nav.main-nav.open{
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .nav-toggle{ display:block; }
}

/* ---------- Buttons ---------- */

.btn{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 13px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--gold-dim);
  color: var(--gold);
  cursor: pointer;
  background: transparent;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}
.btn:hover{ background: var(--gold); color: var(--void); border-color: var(--gold); }
.btn.ghost{ border-color: var(--line); color: var(--ink-muted); }
.btn.ghost:hover{ background: var(--card-hover); color: var(--ink); border-color: var(--line); }

/* ---------- Hero ---------- */

.hero{
  position: relative;
  padding: 90px 0 110px;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}
.hero canvas{
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
}
.hero .wrap{ position: relative; z-index: 2; }
.hero-grid{
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
}
@media (max-width: 900px){ .hero-grid{ grid-template-columns: 1fr; } }

.hero-orbit{
  aspect-ratio: 1;
  position: relative;
}

.hero-actions{ display:flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }

.hero-stats{
  display: flex;
  gap: 40px;
  margin-top: 56px;
  flex-wrap: wrap;
}
.hero-stats div{ border-left: 1px solid var(--line); padding-left: 16px; }
.hero-stats .num{ font-family: var(--font-display); font-size: 1.8rem; color: var(--ink); display:block; }
.hero-stats .lbl{ font-family: var(--font-mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-faint); }

/* generic page hero (non-canvas, smaller) */
.page-hero{
  padding: 64px 0 56px;
  border-bottom: 1px solid var(--line-soft);
  background:
    radial-gradient(ellipse at 85% 0%, rgba(95,216,201,0.06), transparent 55%),
    radial-gradient(ellipse at 10% 100%, rgba(231,183,95,0.05), transparent 55%);
}
.page-hero p.lede{ margin-top: 18px; }

/* ---------- Sections ---------- */

section{ padding: 88px 0; }
section.tight{ padding: 56px 0; }
section.raised{ background: var(--void-raised); border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }

.section-head{
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 30px;
  margin-bottom: 44px;
  flex-wrap: wrap;
}
.section-head p{ margin: 0; }

/* ---------- Cards / Catalog grid ---------- */

.grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}
.grid.cols-2{ grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px){ .grid{ grid-template-columns: 1fr; } }

.card{
  background: var(--card);
  padding: 34px;
  transition: background .2s ease;
  display: flex;
  flex-direction: column;
}
.card:hover{ background: var(--card-hover); }
.card .coord{ margin-bottom: 14px; }
.card h3{ margin-bottom: 10px; }
.card p{ font-size: 0.94rem; margin-bottom: 18px; }
.card .card-foot{
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
}
.status{
  display: inline-flex;
  align-items: center;
  gap: 7px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.status::before{ content:''; width: 6px; height: 6px; border-radius: 50%; background: var(--ink-faint); }
.status.active::before{ background: var(--cyan); box-shadow: 0 0 6px 1px rgba(95,216,201,0.6); }
.status.active{ color: var(--cyan); }
.status.transit::before{ background: var(--gold); box-shadow: 0 0 6px 1px rgba(231,183,95,0.6); }
.status.transit{ color: var(--gold); }
.status.archived{ color: var(--ink-faint); }

.card-link{
  color: var(--ink);
  font-family: var(--font-display);
}
.card-link .arrow{ display:inline-block; transition: transform .2s ease; }
.card-link:hover .arrow{ transform: translateX(4px); }

/* ---------- Timeline (About / history) ---------- */

.timeline{ position: relative; padding-left: 40px; border-left: 1px solid var(--line); }
.timeline-item{ position: relative; padding-bottom: 46px; }
.timeline-item:last-child{ padding-bottom: 0; }
.timeline-item::before{
  content:'';
  position: absolute;
  left: -45px; top: 4px;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--void);
  border: 1px solid var(--gold);
}
.timeline-item .coord{ margin-bottom: 6px; }

/* ---------- Two-column dossier (mission detail) ---------- */

.dossier{
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 70px;
  align-items: start;
}
@media (max-width: 900px){ .dossier{ grid-template-columns: 1fr; } }

.spec-panel{
  border: 1px solid var(--line);
  background: var(--void-raised);
  padding: 26px;
  position: sticky;
  top: 100px;
}
.spec-panel h4{
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  margin-bottom: 18px;
}
.spec-row{
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 0;
  border-top: 1px solid var(--line-soft);
  font-size: 0.85rem;
}
.spec-row:first-of-type{ border-top: none; }
.spec-row .k{ color: var(--ink-faint); font-family: var(--font-mono); font-size: 0.75rem; }
.spec-row .v{ color: var(--ink); text-align: right; }

.dossier article > p{ max-width: 68ch; }
.dossier article h3{ margin-top: 2em; }
.dossier blockquote{
  margin: 2em 0;
  padding: 4px 0 4px 24px;
  border-left: 2px solid var(--gold);
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-style: italic;
  color: var(--ink);
}
.dossier blockquote cite{
  display:block;
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.7rem;
  color: var(--ink-faint);
  margin-top: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ---------- Instrument divider (orbital rule) ---------- */

.orbit-divider{
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--ink-faint);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 0 44px;
}
.orbit-divider::before, .orbit-divider::after{
  content:'';
  flex: 1;
  height: 1px;
  background: var(--line);
}

/* ---------- Forms ---------- */

.form-grid{ display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 700px){ .form-grid{ grid-template-columns: 1fr; } }
.field{ display: flex; flex-direction: column; gap: 8px; }
.field.full{ grid-column: 1 / -1; }
.field label{
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
}
.field input, .field select, .field textarea{
  background: var(--void-raised);
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  border-radius: var(--radius);
}
.field input:focus, .field select:focus, .field textarea:focus{
  outline: none;
  border-color: var(--gold-dim);
}
.field textarea{ resize: vertical; min-height: 120px; }

/* ---------- Table (FAQ / instruments spec) ---------- */

.data-table{ width: 100%; border-collapse: collapse; margin: 20px 0 40px; }
.data-table th, .data-table td{
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line-soft);
  font-size: 0.9rem;
}
.data-table th{
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
  font-weight: 400;
}
.data-table td{ color: var(--ink-muted); }

/* ---------- FAQ accordion ---------- */

.faq-item{ border-bottom: 1px solid var(--line-soft); }
.faq-item summary{
  cursor: pointer;
  list-style: none;
  padding: 22px 0;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--ink);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-item summary::after{
  content: '+';
  font-family: var(--font-mono);
  color: var(--gold);
  font-size: 1.3rem;
  flex-shrink: 0;
}
.faq-item[open] summary::after{ content: '\2212'; }
.faq-item .faq-a{ padding: 0 0 26px; max-width: 68ch; }

/* ---------- People grid ---------- */

.person{ padding: 30px; background: var(--card); }
.person .portrait{
  width: 100%;
  aspect-ratio: 4/5;
  margin-bottom: 20px;
  background: linear-gradient(155deg, #1c2542, #0e1326 70%);
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-soft);
}
.person .portrait::after{
  content:'';
  position:absolute; inset:0;
  background: radial-gradient(circle at 30% 20%, rgba(231,183,95,0.14), transparent 60%);
}
.person h3{ font-size: 1.1rem; margin-bottom: 2px; }
.person .role{ font-family: var(--font-mono); font-size: 0.72rem; color: var(--gold); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 14px; display:block; }
.person p{ font-size: 0.88rem; }

/* ---------- Callout / CTA band ---------- */

.cta-band{
  border-top: 1px solid var(--line-soft);
  padding: 90px 0;
  text-align: center;
}
.cta-band h2{ max-width: 20ch; margin: 0 auto 0.5em; }
.cta-band p.lede{ margin: 0 auto 30px; text-align: center; }
.cta-band .hero-actions{ justify-content: center; margin-top: 0; }

/* ---------- News list ---------- */

.news-item{
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 30px;
  padding: 34px 0;
  border-bottom: 1px solid var(--line-soft);
}
@media (max-width: 640px){ .news-item{ grid-template-columns: 1fr; gap: 10px; } }
.news-item .date{ font-family: var(--font-mono); font-size: 0.78rem; color: var(--ink-faint); padding-top: 4px; }
.news-item h3{ margin-bottom: 8px; }
.news-item h3 a{ color: var(--ink); }
.news-item h3 a:hover{ color: var(--gold); }

.article-body{ max-width: 68ch; margin: 0 auto; }
.article-body p{ max-width: none; font-size: 1.02rem; }
.article-body h3{ margin-top: 1.8em; }
.article-meta{ display:flex; gap: 24px; flex-wrap: wrap; margin-bottom: 40px; padding-bottom: 30px; border-bottom: 1px solid var(--line-soft); }
.article-meta .coord{ font-size: 0.75rem; }

/* ---------- Footer ---------- */

footer{
  border-top: 1px solid var(--line-soft);
  padding: 70px 0 34px;
  background: var(--void-raised);
}
.footer-grid{
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 50px;
}
@media (max-width: 800px){ .footer-grid{ grid-template-columns: 1fr 1fr; } }
.footer-grid h4{
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
  margin-bottom: 18px;
}
.footer-grid ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap: 11px; }
.footer-grid a{ color: var(--ink-muted); font-size: 0.9rem; }
.footer-grid a:hover{ color: var(--gold); }
.footer-bottom{
  display:flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 30px;
  border-top: 1px solid var(--line-soft);
  flex-wrap: wrap;
  gap: 14px;
}
.footer-bottom .coord{ color: var(--ink-faint); }

/* ---------- Reveal on scroll ---------- */
.reveal{ opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity: 1; transform: translateY(0); }