:root {
  --bg: #05080F;
  --surface: rgba(14, 21, 37, 0.55);
  --line: rgba(150, 170, 210, 0.14);
  --text: #E8EDF7;
  --muted: #8B96AD;
  --gold: #F5C36B;
  --teal: #6FE7C8;
  --cat-meteors: #6FE7C8;
  --cat-eclipses: #FF8A7A;
  --cat-moon: #C9D4E8;
  --cat-planets: #F5C36B;
  --cat-seasons: #A78BFA;
  --radius: 14px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: radial-gradient(1200px 800px at 75% -10%, #0B1430 0%, var(--bg) 55%) fixed, var(--bg);
  color: var(--text);
  font-family: 'Sora', system-ui, sans-serif;
  font-weight: 300;
  line-height: 1.65;
  min-height: 100vh;
}
#sky { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
main, header.top, footer { position: relative; z-index: 1; }

a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }
.mono { font-family: 'IBM Plex Mono', monospace; }

/* ---------- header ---------- */
.top {
  display: flex; align-items: baseline; gap: 14px;
  padding: 22px clamp(20px, 5vw, 56px);
}
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); }
.brand svg { translate: 0 4px; }
.brand span { font-family: 'Marcellus', serif; font-size: 22px; letter-spacing: 0.14em; text-transform: uppercase; }
.tagline { color: var(--muted); font-size: 13px; letter-spacing: 0.04em; }

/* ---------- hero ---------- */
.hero {
  display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 32px; align-items: center;
  padding: clamp(28px, 6vh, 72px) clamp(20px, 5vw, 56px) 24px;
  max-width: 1120px; margin: 0 auto;
}
h1 {
  font-family: 'Marcellus', serif; font-weight: 400;
  font-size: clamp(34px, 5vw, 56px); line-height: 1.12; margin: 0 0 18px;
  text-shadow: 0 0 40px rgba(111, 231, 200, 0.18);
}
.lede { color: var(--muted); max-width: 46ch; margin: 0 0 26px; font-size: 16px; }

.next-up {
  display: inline-flex; align-items: center; gap: 10px; flex-wrap: wrap;
  border: 1px solid var(--line); border-radius: 999px;
  background: var(--surface); backdrop-filter: blur(8px);
  padding: 9px 18px 9px 14px; font-size: 14px;
  box-shadow: 0 0 24px rgba(245, 195, 107, 0.08);
}
.pulse {
  width: 8px; height: 8px; border-radius: 50%; background: var(--gold);
  box-shadow: 0 0 10px var(--gold); animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: 0.35; } }
.next-label { color: var(--gold); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; }
#next-when { color: var(--muted); font-size: 12.5px; }

/* ---------- orrery ---------- */
.orrery { position: relative; width: min(300px, 68vw); aspect-ratio: 1; margin: 0 auto; }
.sun {
  position: absolute; top: 50%; left: 50%; translate: -50% -50%;
  width: 26px; height: 26px; border-radius: 50%; background: var(--gold);
  box-shadow: 0 0 18px 5px rgba(245, 195, 107, 0.55), 0 0 70px 24px rgba(245, 195, 107, 0.14);
}
.orbit {
  position: absolute; border: 1px dashed rgba(200, 214, 240, 0.16); border-radius: 50%;
  animation: spin linear infinite;
}
.o-mercury { inset: 33%; animation-duration: 7s; }
.o-venus   { inset: 23%; animation-duration: 18s; }
.o-earth   { inset: 11.5%; animation-duration: 29s; }
.o-mars    { inset: 0; animation-duration: 55s; }
.p {
  position: absolute; top: 0; left: 50%; translate: -50% -50%;
  width: 9px; height: 9px; border-radius: 50%;
}
.p-mercury { width: 6px; height: 6px; background: #B8AFA5; box-shadow: 0 0 8px rgba(184, 175, 165, 0.8); }
.p-venus   { background: var(--gold); box-shadow: 0 0 12px 2px rgba(245, 195, 107, 0.85); }
.p-earth   { background: #6FA8F5; box-shadow: 0 0 12px 2px rgba(111, 168, 245, 0.85); }
.p-mars    { width: 7px; height: 7px; background: #E0705A; box-shadow: 0 0 10px rgba(224, 112, 90, 0.8); }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- controls ---------- */
.controls {
  max-width: 1120px; margin: 0 auto; padding: 8px clamp(20px, 5vw, 56px) 4px;
  display: flex; flex-direction: column; gap: 14px;
}
.ctl-row { display: flex; flex-wrap: wrap; gap: 14px 22px; align-items: center; justify-content: space-between; }
.loc { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.or { color: var(--muted); font-size: 13px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(111, 231, 200, 0.1); color: var(--teal);
  border: 1px solid rgba(111, 231, 200, 0.35); border-radius: 999px;
  padding: 8px 16px; font: inherit; font-size: 13.5px; cursor: pointer;
  transition: box-shadow 0.2s, background 0.2s;
}
.btn:hover { background: rgba(111, 231, 200, 0.18); box-shadow: 0 0 16px rgba(111, 231, 200, 0.25); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line); }
.btn-ghost:hover { box-shadow: none; border-color: var(--muted); background: rgba(255,255,255,0.04); }
.coord {
  width: 86px; background: rgba(255, 255, 255, 0.05); color: var(--text);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px;
  font-family: 'IBM Plex Mono', monospace; font-size: 13px;
}
.coord:focus { outline: none; border-color: var(--teal); }
.loc-status { color: var(--gold); font-size: 12.5px; }
.lead { color: var(--muted); font-size: 13.5px; display: inline-flex; align-items: center; gap: 8px; }
.lead select {
  background: rgba(255, 255, 255, 0.05); color: var(--text);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; font: inherit; font-size: 13px;
}

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  background: transparent; color: var(--muted); border: 1px solid var(--line);
  border-radius: 999px; padding: 6px 14px; font: inherit; font-size: 13px;
  cursor: pointer; transition: all 0.2s; --c: var(--text);
}
.chip:hover { color: var(--text); border-color: var(--muted); }
.chip.active { color: var(--c); border-color: var(--c); box-shadow: 0 0 14px color-mix(in srgb, var(--c) 30%, transparent); }
.chip[data-cat="all"] { --c: var(--text); }
.c-meteors { --c: var(--cat-meteors); }
.c-eclipses { --c: var(--cat-eclipses); }
.c-moon { --c: var(--cat-moon); }
.c-planets { --c: var(--cat-planets); }
.c-seasons { --c: var(--cat-seasons); }

/* ---------- timeline ---------- */
.timeline { max-width: 1120px; margin: 0 auto; padding: 20px clamp(20px, 5vw, 56px) 60px; }
.loading, .empty { color: var(--muted); text-align: center; padding: 40px 0; }

.month {
  font-family: 'IBM Plex Mono', monospace; font-size: 12px; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--muted);
  margin: 34px 0 14px; display: flex; align-items: center; gap: 14px;
}
.month::after { content: ''; flex: 1; height: 1px; background: var(--line); }

.card {
  --c: var(--text);
  display: grid; grid-template-columns: 76px 1fr auto; gap: 18px; align-items: center;
  background: var(--surface); backdrop-filter: blur(8px);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 18px; margin-bottom: 10px;
  position: relative; overflow: hidden;
  transition: transform 0.2s, box-shadow 0.25s, border-color 0.25s;
}
.card::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--c); box-shadow: 0 0 14px 1px var(--c); opacity: 0.85;
}
.card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--c) 45%, transparent);
  box-shadow: 0 6px 28px rgba(0, 0, 0, 0.45), 0 0 22px color-mix(in srgb, var(--c) 14%, transparent);
}
.card.cat-meteors { --c: var(--cat-meteors); }
.card.cat-eclipses { --c: var(--cat-eclipses); }
.card.cat-moon { --c: var(--cat-moon); }
.card.cat-planets { --c: var(--cat-planets); }
.card.cat-seasons { --c: var(--cat-seasons); }

.date {
  text-align: center; font-family: 'IBM Plex Mono', monospace; line-height: 1.25;
}
.date .d { font-size: 24px; font-weight: 500; color: var(--c); text-shadow: 0 0 16px color-mix(in srgb, var(--c) 45%, transparent); }
.date .m { font-size: 11px; letter-spacing: 0.2em; color: var(--muted); text-transform: uppercase; }
.date .t { font-size: 11px; color: var(--muted); margin-top: 3px; }

.body h3 { margin: 0 0 4px; font-family: 'Marcellus', serif; font-weight: 400; font-size: 19px; letter-spacing: 0.01em; }
.body p { margin: 0; color: var(--muted); font-size: 13.5px; max-width: 66ch; }
.badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.badge {
  font-size: 11.5px; padding: 3px 10px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--muted);
}
.badge.vis-true { color: var(--teal); border-color: rgba(111, 231, 200, 0.4); }
.badge.vis-partial { color: var(--gold); border-color: rgba(245, 195, 107, 0.4); }
.badge.vis-false { color: var(--cat-eclipses); border-color: rgba(255, 138, 122, 0.35); }
.badge.countdown { color: var(--text); }

.bell {
  background: transparent; border: 1px solid var(--line); color: var(--muted);
  border-radius: 50%; width: 42px; height: 42px; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  transition: all 0.2s; flex-shrink: 0;
}
.bell:hover { color: var(--gold); border-color: var(--gold); box-shadow: 0 0 14px rgba(245, 195, 107, 0.3); }
.bell.on { color: var(--gold); border-color: var(--gold); background: rgba(245, 195, 107, 0.12); box-shadow: 0 0 16px rgba(245, 195, 107, 0.35); }
.bell svg { width: 18px; height: 18px; }
.bell:focus-visible, .btn:focus-visible, .chip:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }

footer { color: var(--muted); font-size: 12.5px; text-align: center; padding: 26px 20px 40px; }
footer p { max-width: 62ch; margin: 0 auto; }

/* ---------- responsive & motion ---------- */
@media (max-width: 780px) {
  .hero { grid-template-columns: 1fr; text-align: center; }
  .orrery { order: -1; width: min(220px, 60vw); }
  .lede { margin-inline: auto; }
  .card { grid-template-columns: 60px 1fr; }
  .bell { grid-column: 2; justify-self: end; }
  .date .d { font-size: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  .orbit, .pulse { animation: none; }
  html { scroll-behavior: auto; }
  .card, .btn, .chip, .bell { transition: none; }
}