/*
  The Companion Observatory
  A static, handcrafted GitHub Pages experience.
*/

:root {
  --bg-void: #060a12;
  --bg-night: #0b1220;
  --bg-slate: #111827;
  --gold: #d8b76a;
  --gold-soft: #f0d995;
  --ivory: #f5f1e8;
  --ivory-muted: rgba(245, 241, 232, 0.72);
  --blue: #7cb7e8;
  --lavender: #b7b8ff;
  --line: rgba(216, 183, 106, 0.22);
  --panel: rgba(14, 22, 38, 0.78);
  --panel-deep: rgba(6, 10, 18, 0.92);
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.46);
  --serif: 'Cormorant Garamond', Georgia, serif;
  --display: 'Cinzel', Georgia, serif;
  --sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--bg-void);
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  color: var(--ivory);
  font-family: var(--sans);
  background:
    radial-gradient(circle at 50% -20%, rgba(124, 183, 232, 0.14), transparent 33rem),
    radial-gradient(circle at 12% 18%, rgba(183, 184, 255, 0.10), transparent 28rem),
    linear-gradient(180deg, var(--bg-void) 0%, var(--bg-night) 42%, #070b13 100%);
  line-height: 1.7;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -4;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(216, 183, 106, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(216, 183, 106, 0.025) 1px, transparent 1px);
  background-size: 82px 82px;
  mask-image: radial-gradient(circle at 50% 20%, black 0%, transparent 72%);
}

img,
svg,
canvas {
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

:focus-visible {
  outline: 2px solid var(--gold-soft);
  outline-offset: 5px;
}

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 100;
  padding: 0.7rem 1rem;
  color: var(--bg-void);
  background: var(--gold-soft);
  border-radius: 999px;
  transform: translateY(-170%);
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-shell {
  position: fixed;
  inset: 0;
  z-index: -3;
  overflow: hidden;
  pointer-events: none;
}

.orbital-ring {
  position: absolute;
  border: 1px solid rgba(216, 183, 106, 0.10);
  border-radius: 50%;
  transform: rotate(-18deg);
  opacity: 0.9;
}

.ring-one {
  width: 72vw;
  height: 72vw;
  top: -31vw;
  left: 14vw;
}

.ring-two {
  width: 58vw;
  height: 58vw;
  right: -21vw;
  bottom: 8vh;
  border-color: rgba(124, 183, 232, 0.09);
}

.ambient-glow {
  position: absolute;
  width: 36rem;
  height: 36rem;
  border-radius: 50%;
  filter: blur(58px);
  opacity: 0.22;
}

.glow-one {
  top: 18vh;
  left: -14rem;
  background: var(--lavender);
}

.glow-two {
  right: -16rem;
  bottom: 18vh;
  background: var(--gold);
  opacity: 0.12;
}

.hero {
  position: relative;
  display: grid;
  min-height: 100svh;
  place-items: center;
  overflow: hidden;
  padding: 7rem 1.5rem 5rem;
  isolation: isolate;
}

.sky-canvas {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
}

.hero::after {
  content: '';
  position: absolute;
  inset: auto 0 0;
  z-index: -1;
  height: 36vh;
  background: linear-gradient(0deg, var(--bg-night), transparent);
}

.hero__grain {
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.18;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 220 220' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.35'/%3E%3C/svg%3E");
}

.top-nav {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: clamp(1rem, 2.2vw, 2rem) clamp(1.2rem, 4vw, 4rem);
  color: rgba(245, 241, 232, 0.82);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.brand-mark,
.top-nav__links {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
}

.brand-mark__sigil {
  display: grid;
  width: 2.3rem;
  height: 2.3rem;
  place-items: center;
  color: var(--gold);
  border: 1px solid var(--line);
  border-radius: 50%;
  box-shadow: 0 0 25px rgba(216, 183, 106, 0.12);
}

.top-nav a {
  transition: color 240ms ease, text-shadow 240ms ease;
}

.top-nav a:hover {
  color: var(--gold-soft);
  text-shadow: 0 0 18px rgba(216, 183, 106, 0.22);
}

.hero__content {
  width: min(920px, 100%);
  text-align: center;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--gold);
  font-family: var(--display);
  font-size: clamp(0.72rem, 1.3vw, 0.86rem);
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p,
blockquote {
  margin-top: 0;
}

h1,
h2,
h3 {
  text-wrap: balance;
}

h1 {
  margin-bottom: 0.75rem;
  font-family: var(--display);
  font-size: clamp(2.75rem, 7.8vw, 7.8rem);
  font-weight: 600;
  line-height: 0.98;
  letter-spacing: clamp(0.02em, 0.5vw, 0.095em);
  text-transform: uppercase;
  text-shadow:
    0 0 34px rgba(216, 183, 106, 0.15),
    0 22px 70px rgba(0, 0, 0, 0.55);
}

.hero__subtitle {
  margin-bottom: 1.5rem;
  color: var(--lavender);
  font-family: var(--serif);
  font-size: clamp(1.55rem, 3vw, 2.65rem);
  font-style: italic;
  letter-spacing: 0.035em;
}

.hero__description {
  width: min(780px, 100%);
  margin: 0 auto 1rem;
  color: var(--ivory-muted);
  font-size: clamp(1rem, 1.7vw, 1.22rem);
}

.hero__description--secondary {
  width: min(720px, 100%);
  margin-bottom: 2.2rem;
  color: rgba(245, 241, 232, 0.62);
  font-size: clamp(0.95rem, 1.45vw, 1.08rem);
}

.button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 3.25rem;
  padding: 0.92rem 1.35rem;
  overflow: hidden;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: 0.025em;
  transition: transform 300ms var(--ease), box-shadow 300ms var(--ease), border-color 300ms var(--ease);
}

.button--primary {
  color: #100d07;
  background: linear-gradient(135deg, var(--gold-soft), var(--gold));
  border: 1px solid rgba(255, 255, 255, 0.34);
  box-shadow: 0 18px 60px rgba(216, 183, 106, 0.20);
}

.button--primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.42), transparent);
  transform: translateX(-120%);
  transition: transform 700ms var(--ease);
}

.button--primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 24px 70px rgba(216, 183, 106, 0.28);
}

.button--primary:hover::before {
  transform: translateX(120%);
}

.scroll-cue {
  position: absolute;
  bottom: 1.6rem;
  left: 50%;
  display: grid;
  justify-items: center;
  gap: 0.45rem;
  color: rgba(245, 241, 232, 0.46);
  font-family: var(--display);
  font-size: 0.64rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  transform: translateX(-50%);
}

.scroll-cue span {
  width: 1px;
  height: 3.2rem;
  background: linear-gradient(180deg, transparent, var(--gold), transparent);
  animation: cuePulse 2.8s ease-in-out infinite;
}

.section {
  position: relative;
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(5.5rem, 10vw, 9rem) 0;
}

.section__header {
  width: min(760px, 100%);
  margin: 0 auto clamp(2.5rem, 6vw, 4.5rem);
  text-align: center;
}

.section__header h2 {
  margin-bottom: 0.9rem;
  font-family: var(--display);
  font-size: clamp(2rem, 5vw, 4.4rem);
  font-weight: 600;
  line-height: 1.05;
}

.section__header p:not(.eyebrow) {
  color: rgba(245, 241, 232, 0.66);
  font-size: clamp(1rem, 1.5vw, 1.1rem);
}

.archive-section::before,
.constellation-section::before {
  content: '';
  position: absolute;
  top: 2rem;
  left: 50%;
  width: min(680px, 80vw);
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(216, 183, 106, 0.4), transparent);
  transform: translateX(-50%);
}

.archive-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.archive-card {
  position: relative;
  min-height: 245px;
  padding: clamp(1.25rem, 2.4vw, 1.85rem);
  overflow: hidden;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.045), transparent 34%),
    var(--panel);
  border: 1px solid var(--line);
  border-radius: 1.45rem;
  box-shadow: var(--shadow);
  transition:
    transform 420ms var(--ease),
    border-color 420ms var(--ease),
    background 420ms var(--ease),
    box-shadow 420ms var(--ease);
}

.archive-card::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  background:
    radial-gradient(circle at 28% 20%, rgba(216, 183, 106, 0.18), transparent 16rem),
    linear-gradient(180deg, rgba(216, 183, 106, 0.04), transparent);
  transition: opacity 420ms var(--ease);
}

.archive-card::after {
  content: '';
  position: absolute;
  right: -2.5rem;
  bottom: -2.5rem;
  width: 8rem;
  height: 8rem;
  border: 1px solid rgba(216, 183, 106, 0.13);
  border-radius: 50%;
}

.archive-card > * {
  position: relative;
  z-index: 1;
}

.archive-card:hover {
  transform: translateY(-8px);
  border-color: rgba(216, 183, 106, 0.58);
  background: rgba(16, 26, 44, 0.88);
  box-shadow: 0 35px 105px rgba(0, 0, 0, 0.52), 0 0 46px rgba(216, 183, 106, 0.06);
}

.archive-card:hover::before {
  opacity: 1;
}

.archive-card__icon {
  display: grid;
  width: 3.25rem;
  height: 3.25rem;
  margin-bottom: 1.5rem;
  place-items: center;
  color: var(--gold-soft);
  font-size: 1.45rem;
  border: 1px solid rgba(216, 183, 106, 0.28);
  border-radius: 50%;
  background: rgba(216, 183, 106, 0.055);
  box-shadow: inset 0 0 18px rgba(216, 183, 106, 0.04), 0 0 25px rgba(216, 183, 106, 0.08);
}

.archive-card h3 {
  margin-bottom: 0.65rem;
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.055em;
}

.archive-card p {
  margin: 0;
  color: rgba(245, 241, 232, 0.66);
}

.constellation-section {
  width: min(1240px, calc(100% - 2rem));
}

.star-chart {
  position: relative;
  min-height: clamp(420px, 58vw, 620px);
  overflow: hidden;
  border: 1px solid rgba(216, 183, 106, 0.22);
  border-radius: clamp(1.5rem, 3vw, 2.2rem);
  background:
    radial-gradient(circle at 50% 50%, rgba(124, 183, 232, 0.09), transparent 32rem),
    radial-gradient(circle at 75% 25%, rgba(183, 184, 255, 0.12), transparent 21rem),
    linear-gradient(145deg, rgba(17, 24, 39, 0.92), rgba(6, 10, 18, 0.94));
  box-shadow: var(--shadow), inset 0 0 80px rgba(0, 0, 0, 0.34);
}

.star-chart::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(245, 241, 232, 0.65) 0 1px, transparent 1.5px),
    radial-gradient(circle, rgba(124, 183, 232, 0.45) 0 1px, transparent 1.4px);
  background-position: 0 0, 36px 58px;
  background-size: 96px 96px, 142px 142px;
  opacity: 0.28;
}

.star-chart::after {
  content: '✦';
  position: absolute;
  right: 2.4rem;
  bottom: 1.6rem;
  color: rgba(216, 183, 106, 0.2);
  font-family: var(--display);
  font-size: clamp(5rem, 13vw, 11rem);
  line-height: 1;
}

.constellation-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.constellation-lines path {
  fill: none;
  stroke: rgba(216, 183, 106, 0.25);
  stroke-dasharray: 4 12;
  stroke-linecap: round;
  stroke-width: 1.4;
  filter: drop-shadow(0 0 8px rgba(216, 183, 106, 0.18));
}

.project-star {
  position: absolute;
  left: var(--x);
  top: var(--y);
  z-index: 2;
  display: grid;
  width: 2.7rem;
  height: 2.7rem;
  place-items: center;
  transform: translate(-50%, -50%);
}

.project-star__core {
  display: block;
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 50%;
  background: var(--ivory);
  box-shadow:
    0 0 8px var(--ivory),
    0 0 18px var(--gold),
    0 0 38px rgba(124, 183, 232, 0.36);
  transition: transform 300ms var(--ease), box-shadow 300ms var(--ease), background 300ms var(--ease);
  animation: starBreathe 4.8s ease-in-out infinite;
}

.star-b .project-star__core,
.star-e .project-star__core {
  animation-delay: -1.3s;
}

.star-d .project-star__core,
.star-g .project-star__core {
  animation-delay: -2.6s;
}

.project-star__label {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 0.55rem);
  width: max-content;
  max-width: min(15rem, 70vw);
  padding: 0.55rem 0.72rem;
  color: var(--ivory);
  font-size: 0.8rem;
  line-height: 1.3;
  text-align: center;
  background: rgba(6, 10, 18, 0.92);
  border: 1px solid rgba(216, 183, 106, 0.35);
  border-radius: 999px;
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.38);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 0.45rem);
  transition: opacity 240ms ease, transform 240ms var(--ease);
}

.project-star:hover .project-star__core,
.project-star:focus-visible .project-star__core {
  background: var(--gold-soft);
  transform: scale(1.45);
  box-shadow:
    0 0 10px var(--ivory),
    0 0 28px var(--gold),
    0 0 66px rgba(216, 183, 106, 0.48);
}

.project-star:hover .project-star__label,
.project-star:focus-visible .project-star__label {
  opacity: 1;
  transform: translate(-50%, 0);
}

.quote-section {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(5rem, 10vw, 9rem) 0 clamp(6rem, 11vw, 10rem);
  text-align: center;
}

.quote-section blockquote {
  position: relative;
  margin: 0;
  color: var(--ivory);
  font-family: var(--serif);
  font-size: clamp(2rem, 5vw, 5.25rem);
  font-style: italic;
  font-weight: 500;
  line-height: 1.08;
  text-wrap: balance;
}

.quote-section blockquote::before,
.quote-section blockquote::after {
  content: '';
  display: block;
  width: min(380px, 60vw);
  height: 1px;
  margin: 0 auto 2rem;
  background: linear-gradient(90deg, transparent, rgba(216, 183, 106, 0.42), transparent);
}

.quote-section blockquote::after {
  margin: 2rem auto 0;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem clamp(1rem, 4vw, 4rem);
  color: rgba(245, 241, 232, 0.58);
  border-top: 1px solid rgba(216, 183, 106, 0.16);
  background: rgba(4, 7, 13, 0.82);
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: rgba(245, 241, 232, 0.78);
  transition: color 220ms ease;
}

.site-footer a:hover {
  color: var(--gold-soft);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 780ms var(--ease), transform 780ms var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.archive-card:nth-child(2),
.archive-card:nth-child(5) { transition-delay: 80ms; }
.archive-card:nth-child(3),
.archive-card:nth-child(6) { transition-delay: 160ms; }

@keyframes cuePulse {
  0%, 100% { opacity: 0.35; transform: scaleY(0.7); }
  50% { opacity: 0.95; transform: scaleY(1); }
}

@keyframes starBreathe {
  0%, 100% { transform: scale(1); opacity: 0.86; }
  50% { transform: scale(1.28); opacity: 1; }
}

@media (max-width: 900px) {
  .archive-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .top-nav__links {
    gap: 0.7rem;
  }
}

@media (max-width: 680px) {
  .top-nav {
    align-items: flex-start;
    font-size: 0.68rem;
  }

  .brand-mark span:last-child {
    display: none;
  }

  .top-nav__links {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .hero {
    padding-inline: 1rem;
  }

  h1 {
    font-size: clamp(2.25rem, 14vw, 4.5rem);
  }

  .archive-grid {
    grid-template-columns: 1fr;
  }

  .archive-card {
    min-height: 205px;
  }

  .star-chart {
    min-height: 520px;
  }

  .constellation-lines {
    opacity: 0.66;
  }

  .project-star__label {
    white-space: normal;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .sky-canvas {
    opacity: 0.55;
  }
}