:root {
  --bg: #0b1026;
  --bg-2: #121a3a;
  --panel: #162044;
  --panel-2: #1b2858;
  --ink: #e8ecf8;
  --ink-dim: #b7c0dd;
  --ink-faint: #8a94bc;
  --gold: #f6c96a;
  --gold-dim: #c9a24a;
  --accent: #7fb5ff;
  --accent-2: #b59cff;
  --line: rgba(255,255,255,0.08);
  --line-2: rgba(255,255,255,0.14);
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 10px 30px rgba(0,0,0,0.35);
  --maxw: 1180px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: radial-gradient(ellipse at top, #1a2458 0%, var(--bg) 55%, #07091a 100%);
  color: var(--ink);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11,16,38,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 700; font-size: 1.05rem; }
.brand:hover { text-decoration: none; color: var(--gold); }
.brand-mark { color: var(--gold); }
.site-nav { display: flex; gap: 18px; flex-wrap: wrap; }
.site-nav a { color: var(--ink-dim); font-size: 0.95rem; padding: 6px 2px; border-bottom: 1px solid transparent; }
.site-nav a:hover { color: var(--gold); border-color: var(--gold-dim); text-decoration: none; }

/* Hero */
.hero {
  position: relative;
  max-width: var(--maxw); margin: 0 auto; padding: 60px 24px 40px;
  overflow: hidden;
}
.hero-inner { position: relative; z-index: 2; max-width: 720px; }
.hero-kicker {
  display: inline-block; padding: 4px 12px; border-radius: 100px;
  background: rgba(246,201,106,0.12); color: var(--gold);
  border: 1px solid rgba(246,201,106,0.3); font-size: 0.85rem; font-weight: 600;
  letter-spacing: 0.02em; margin-bottom: 14px;
}
.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  line-height: 1.15; margin: 0 0 14px;
  background: linear-gradient(120deg, #fff 0%, var(--gold) 80%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { color: var(--ink-dim); font-size: 1.1rem; max-width: 560px; margin: 0 0 24px; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.month-picker {
  appearance: none; background: var(--panel); color: var(--ink);
  border: 1px solid var(--line-2); border-radius: var(--radius-sm);
  padding: 12px 16px; font-size: 1rem; min-width: 180px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23b7c0dd'%3E%3Cpath d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center; padding-right: 32px;
}
.btn-primary, .btn-ghost {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 20px; border-radius: var(--radius-sm);
  font-size: 1rem; font-weight: 600; cursor: pointer; border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn-primary { background: var(--gold); color: #221a00; border-color: var(--gold); }
.btn-primary:hover { background: #ffd98a; transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-2); }
.btn-ghost:hover { border-color: var(--gold-dim); color: var(--gold); }

.hero-sky {
  position: absolute; inset: 0; pointer-events: none; z-index: 1;
}
.star-field { position: absolute; inset: 0; }
.star {
  position: absolute; width: 2px; height: 2px; border-radius: 50%;
  background: #fff; opacity: 0.6;
  animation: twinkle 4s infinite ease-in-out;
}
@keyframes twinkle {
  0%, 100% { opacity: 0.25; }
  50% { opacity: 0.9; }
}

/* Panels */
.panel {
  max-width: var(--maxw); margin: 0 auto; padding: 48px 24px;
}
.panel + .panel { padding-top: 8px; }
.panel-head { margin-bottom: 24px; }
.panel-head h2 { font-size: 1.8rem; margin: 0 0 6px; color: #fff; }
.panel-sub { color: var(--ink-dim); margin: 0; }

.month-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }
.month-card {
  background: linear-gradient(180deg, var(--panel) 0%, var(--bg-2) 100%);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow);
}
.month-card h3 { margin: 0 0 12px; color: var(--gold); font-size: 1.1rem; }
.card-note { color: var(--ink-faint); font-size: 0.9rem; margin: 12px 0 0; }

.moon-strip { display: flex; gap: 10px; flex-wrap: wrap; }
.moon-item {
  flex: 1; min-width: 120px; text-align: center;
  background: rgba(255,255,255,0.04); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 12px 8px;
}
.moon-icon { display: block; font-size: 1.8rem; color: var(--gold); margin-bottom: 4px; }
.moon-label { display: block; font-size: 0.85rem; color: var(--ink); }
.moon-date { display: block; font-size: 0.8rem; color: var(--ink-faint); }

.event-list { list-style: none; padding: 0; margin: 0; }
.event-list li {
  padding: 10px 0; border-bottom: 1px solid var(--line);
  color: var(--ink-dim);
}
.event-list li:last-child { border-bottom: none; }

/* Planets */
.planet-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin-bottom: 18px; }
.planet-card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 20px; position: relative;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.planet-card:hover { border-color: var(--gold-dim); transform: translateY(-2px); }
.planet-card h4 { margin: 0 0 4px; color: #fff; font-size: 1.2rem; }
.planet-card .p-tag {
  display: inline-block; font-size: 0.75rem; padding: 2px 8px;
  background: rgba(127,181,255,0.15); color: var(--accent);
  border-radius: 100px; margin-bottom: 10px;
}
.planet-card dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; font-size: 0.9rem; }
.planet-card dt { color: var(--ink-faint); }
.planet-card dd { margin: 0; color: var(--ink); }
.planet-swatch {
  width: 28px; height: 28px; border-radius: 50%; position: absolute; top: 18px; right: 18px;
  box-shadow: 0 0 14px currentColor;
}

.callout {
  background: rgba(246,201,106,0.08); border: 1px solid rgba(246,201,106,0.25);
  border-radius: var(--radius); padding: 16px 20px; color: var(--ink-dim);
}
.callout strong { color: var(--gold); }

/* Constellations */
.con-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; margin-bottom: 18px; }
.con-card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 16px 18px; display: flex; gap: 14px; align-items: flex-start;
}
.con-num {
  width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; font-weight: 700; font-size: 0.9rem; flex-shrink: 0;
}
.con-body h4 { margin: 0 0 2px; color: #fff; font-size: 1rem; }
.con-body p { margin: 0; color: var(--ink-dim); font-size: 0.9rem; }
.con-body .con-meta { color: var(--ink-faint); font-size: 0.8rem; margin-top: 4px; }

.brightness-key {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px 20px;
}
.brightness-key h4 { margin: 0 0 10px; color: #fff; font-size: 1rem; }
.brightness-key ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 10px 18px; }
.brightness-key li { color: var(--ink-dim); font-size: 0.9rem; display: flex; align-items: center; gap: 8px; }
.dot { width: 12px; height: 12px; border-radius: 50%; display: inline-block; }
.dot.b5 { background: #fff; box-shadow: 0 0 8px #fff; }
.dot.b4 { background: #d8dff5; }
.dot.b3 { background: #9aa4cc; }
.dot.b2 { background: #667099; }
.dot.b1 { background: #3a4266; }

/* ISS */
.iss-wrap { display: grid; grid-template-columns: 1.2fr 1fr; gap: 18px; }
.iss-card, .iss-help {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 20px;
}
.iss-card h3 { margin: 0 0 12px; color: #fff; }
.iss-facts { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; margin: 0; }
.iss-facts dt { color: var(--ink-faint); font-size: 0.9rem; }
.iss-facts dd { margin: 0; color: var(--ink); }
.iss-facts > div { display: contents; }
.iss-help h4 { margin: 0 0 8px; color: var(--gold); font-size: 0.95rem; }
.iss-help ol, .iss-help ul { margin: 0 0 14px; padding-left: 20px; color: var(--ink-dim); font-size: 0.9rem; }
.iss-help li { margin-bottom: 4px; }

/* Guide */
.guide-block {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px; margin-bottom: 16px;
}
.guide-block h3 { margin: 0 0 10px; color: var(--gold); font-size: 1.15rem; }
.guide-block p { color: var(--ink-dim); margin: 0 0 10px; }
.guide-block p:last-child { margin-bottom: 0; }
.guide-block ul { padding-left: 20px; color: var(--ink-dim); }
.guide-block li { margin-bottom: 6px; }
.faq { margin: 0; }
.faq > div { padding: 12px 0; border-bottom: 1px solid var(--line); }
.faq > div:last-child { border-bottom: none; }
.faq dt { color: #fff; font-weight: 600; margin-bottom: 4px; }
.faq dd { margin: 0; color: var(--ink-dim); }

.print-actions { display: flex; gap: 10px; margin: 14px 0 8px; flex-wrap: wrap; }

/* Gear */
.gear-card {
  display: grid; grid-template-columns: 80px 1fr; gap: 18px; align-items: center;
  background: linear-gradient(135deg, var(--panel) 0%, var(--panel-2) 100%);
  border: 1px solid var(--line); border-radius: var(--radius); padding: 22px;
}
.gear-icon { color: var(--gold); display: grid; place-items: center; }
.gear-body h3 { margin: 0 0 6px; color: #fff; }
.gear-body p { color: var(--ink-dim); margin: 0 0 12px; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--line); margin-top: 40px;
  background: rgba(0,0,0,0.2);
}
.footer-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 28px 24px;
  display: grid; gap: 12px;
}
.footer-brand { display: flex; flex-direction: column; gap: 2px; }
.footer-brand strong { color: #fff; }
.footer-brand span { color: var(--ink-faint); font-size: 0.9rem; }
.footer-nav { display: flex; gap: 16px; flex-wrap: wrap; }
.footer-nav a { color: var(--ink-dim); font-size: 0.9rem; }
.footer-nav a:hover { color: var(--gold); }
.footer-note { color: var(--ink-faint); font-size: 0.8rem; margin: 0; }

/* Responsive */
@media (max-width: 780px) {
  .header-inner { flex-direction: column; align-items: flex-start; }
  .site-nav { gap: 12px; }
  .hero { padding: 36px 18px 24px; }
  .panel { padding: 32px 18px; }
  .iss-wrap { grid-template-columns: 1fr; }
  .gear-card { grid-template-columns: 1fr; }
}

@media print {
  body { background: #fff; color: #000; }
  .site-header, .site-footer, .hero-actions, .print-actions, .site-nav { display: none; }
  .panel { page-break-inside: avoid; }
}



/* Factory-injected deployment helpers. The AI owns the site design above this block. */
.ad-unit {
  width: min(100%, 720px);
  min-height: 120px;
  margin: 24px auto;
  display: block;
}

.legal-page {
  width: min(900px, calc(100% - 32px));
  margin: 40px auto;
}

.factory-fallback-nav {
  width: min(900px, calc(100% - 32px));
  margin: 24px auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  font-size: 0.95rem;
}

.factory-fallback-nav a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}