@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@300;400;600;700;800;900&family=Barlow:wght@300;400;500&display=swap');

:root {
  --storm: #0a0604;
  --band-dark: #1a0e06;
  --band-mid: #2e1a0a;
  --band-warm: #3d2010;
  --jupiter-orange: #c85c14;
  --jupiter-amber: #e88a30;
  --jupiter-cream: #f0d4a0;
  --jupiter-tan: #c89060;
  --red-spot: #c03818;
  --belt: #6a3218;
  --zone: #d4a878;
  --text: #e8c890;
  --text-muted: #8a6040;
  --border: rgba(232,138,48,0.2);
  --glow: rgba(200,92,20,0.12);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Barlow', sans-serif;
  background: var(--storm);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

#jupiter-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.wrap {
  position: relative;
  z-index: 2;
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 28px 90px;
}

/* ── HERO ── */
.hero {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 40px;
  align-items: center;
  padding: 64px 0 50px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 60px;
}

.hero-tag {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--jupiter-amber);
  opacity: 0.7;
  margin-bottom: 12px;
}

.hero h1 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: clamp(5rem, 14vw, 10rem);
  font-weight: 900;
  line-height: 0.85;
  color: var(--jupiter-cream);
  text-transform: uppercase;
  letter-spacing: -2px;
}

.hero h1 .subtitle {
  display: block;
  font-size: 0.22em;
  font-weight: 300;
  letter-spacing: 6px;
  color: var(--jupiter-amber);
  text-transform: uppercase;
  margin-top: 8px;
}

.hero-desc {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-muted);
  font-weight: 300;
  margin-top: 18px;
  max-width: 520px;
}

/* ── Jupiter sphere ── */
#jupiter-sphere {
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background:
    repeating-linear-gradient(
      180deg,
      #1a0a04 0px,
      #4a2808 12px,
      #c87040 24px,
      #f0c880 36px,
      #d09050 44px,
      #8a4010 56px,
      #e0a850 68px,
      #c06828 80px,
      #f4d090 92px,
      #3a1a06 104px,
      #d08040 116px,
      #f0c870 128px,
      #2a1206 140px,
      #c87040 152px,
      #e8b060 164px,
      #7a3810 176px,
      #f0d090 188px,
      #4a2010 200px
    );
  box-shadow:
    0 0 60px rgba(200,112,64,0.3),
    0 0 120px rgba(200,92,20,0.15),
    inset -30px -20px 60px rgba(0,0,0,0.5);
  animation: jupiter-spin 30s linear infinite;
  position: relative;
}

.grs {
  position: absolute;
  width: 64px;
  height: 36px;
  background: radial-gradient(ellipse, #c03818, #8a1a08);
  border-radius: 50%;
  top: 52%;
  left: 40%;
  box-shadow: 0 0 12px rgba(192,56,24,0.4);
  animation: grs-drift 8s ease-in-out infinite alternate;
}

@keyframes jupiter-spin {
  from { background-position-x: 0; }
  to   { background-position-x: 400px; }
}

@keyframes grs-drift {
  0%   { transform: translateX(0) scaleX(1); }
  100% { transform: translateX(12px) scaleX(1.05); }
}

/* ── Facts band ── */
.facts-band {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 60px;
}

.fact {
  padding: 18px 12px;
  border-right: 1px solid var(--border);
  background: var(--band-dark);
  transition: background 0.2s;
}

.fact:last-child { border-right: none; }
.fact:hover { background: var(--glow); }

.fact-label {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.6rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--jupiter-amber);
  opacity: 0.65;
  margin-bottom: 6px;
  font-weight: 600;
}

.fact-value {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--jupiter-cream);
  line-height: 1;
}

.fact-unit {
  font-size: 0.68rem;
  color: var(--text-muted);
  font-weight: 300;
}

/* ── Sections ── */
.section {
  margin-bottom: 56px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.65s, transform 0.65s;
}

.section.visible { opacity: 1; transform: none; }

.section-header {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
}

.sec-n {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.68rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--jupiter-amber);
  opacity: 0.5;
  font-weight: 600;
}

.section h2 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--jupiter-cream);
}

p {
  font-size: 0.96rem;
  line-height: 1.82;
  color: var(--text-muted);
  font-weight: 300;
  margin-bottom: 14px;
}

strong { color: var(--jupiter-cream); font-weight: 500; }

/* ── Belt/Zone diagram ── */
.belt-diagram {
  margin-top: 20px;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}

.belt-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  border-bottom: 1px solid var(--border);
}

.belt-row:last-child { border-bottom: none; }

.belt-color {
  padding: 14px 16px;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
}

.belt-swatch {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  flex-shrink: 0;
}

.belt-info {
  padding: 14px 16px;
  font-size: 0.84rem;
  color: var(--text-muted);
  border-left: 1px solid var(--border);
  line-height: 1.5;
}

/* ── Moons grid ── */
.moons-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 14px;
  margin-top: 20px;
}

.moon-card {
  background: var(--band-dark);
  border: 1px solid var(--border);
  border-top: 3px solid var(--jupiter-orange);
  border-radius: 4px;
  padding: 20px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.moon-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(200,92,20,0.15);
}

.moon-card h3 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.1rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--jupiter-amber);
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.moon-stats {
  display: flex;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.moon-stat {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.72rem;
  color: var(--jupiter-cream);
  background: var(--glow);
  padding: 2px 8px;
  border-radius: 3px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.moon-card p { font-size: 0.82rem; margin: 0; line-height: 1.55; }

/* ── Missions timeline ── */
.missions-list {
  margin-top: 20px;
}

.mission-item {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}

.mission-item:last-child { border-bottom: none; }

.m-year {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--jupiter-amber);
  letter-spacing: 1px;
  padding-top: 2px;
}

.m-name {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--jupiter-cream);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.m-desc { font-size: 0.84rem; margin: 0; line-height: 1.5; }

/* ── GRS feature box ── */
.grs-box {
  background: linear-gradient(135deg, #1a0a04, #2e1208);
  border: 1px solid rgba(192,56,24,0.35);
  border-left: 3px solid var(--red-spot);
  border-radius: 6px;
  padding: 26px 28px;
  margin-top: 20px;
}

.grs-box h3 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.1rem;
  font-weight: 800;
  text-transform: uppercase;
  color: #e04030;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.grs-box p { margin: 0 0 10px; }
.grs-box p:last-child { margin: 0; }

/* ── Footer ── */
.footer-band {
  margin-top: 70px;
  border-top: 1px solid var(--border);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-band span {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.65rem;
  letter-spacing: 2px;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
}

@media (max-width: 640px) {
  .hero { grid-template-columns: 1fr; }
  #jupiter-sphere { width: 180px; height: 180px; margin: 0 auto; }
  .facts-band { grid-template-columns: repeat(3,1fr); }
  .belt-row { grid-template-columns: 1fr; }
  .belt-info { border-left: none; border-top: 1px solid var(--border); }
}