:root {
  --bg: #0c0a1d;
  --bg-2: #15112e;
  --surface: rgba(30, 24, 62, 0.62);
  --surface-strong: #1e183e;
  --line: rgba(205, 200, 240, 0.16);
  --silver: #e4e5f1;
  --text: #d6d6e8;
  --muted: #9d98bf;
  --violet: #8b6cf0;
  --lavender: #b9a7ff;
  --glow: rgba(185, 167, 255, 0.35);
  --danger: #ff8fa3;
  --radius: 18px;
  --maxw: 1080px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(1200px 700px at 75% -10%, #2a1f5c 0%, transparent 60%),
              radial-gradient(900px 600px at -10% 30%, #1f1747 0%, transparent 60%),
              var(--bg);
  color: var(--text);
  font-family: "Manrope", system-ui, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}
#sky { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
header, main, footer, .banner { position: relative; z-index: 1; }

h1, h2, h3 { font-family: "Cinzel", Georgia, serif; color: var(--silver); letter-spacing: 0.02em; line-height: 1.2; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); margin: 0.2em 0 0.3em; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.2rem); margin: 0 0 0.2em; }
h3 { font-size: 1.25rem; margin: 0 0 0.4em; }
a { color: var(--lavender); }
strong { color: var(--silver); }

/* Banner */
.banner {
  text-align: center; padding: 10px 16px;
  background: linear-gradient(90deg, #3b2a85, #6a4fd8, #3b2a85);
  color: #fff; font-weight: 500;
}

/* Nav */
.nav {
  max-width: var(--maxw); margin: 0 auto; padding: 18px 20px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--silver); font-family: "Cinzel", serif; font-weight: 700; font-size: 1.3rem; letter-spacing: 0.06em; }
.nav nav { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.nav nav a:not(.btn) { color: var(--muted); text-decoration: none; font-weight: 500; }
.nav nav a:not(.btn):hover { color: var(--silver); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: 999px; border: 1px solid transparent;
  background: linear-gradient(135deg, #a58cff, #7353e6);
  color: #fff; font: 700 1rem "Manrope", sans-serif; text-decoration: none; cursor: pointer;
  box-shadow: 0 6px 24px -6px var(--glow);
  transition: transform .15s ease, box-shadow .15s ease, opacity .15s;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 10px 30px -6px var(--glow); }
.btn:disabled { opacity: .5; cursor: default; transform: none; }
.btn-ghost { background: transparent; border-color: var(--line); color: var(--silver); box-shadow: none; }
.btn-ghost:hover { border-color: var(--lavender); }
.btn-small { padding: 7px 14px; font-size: .9rem; }
.btn-big { padding: 16px 30px; font-size: 1.1rem; }
.link-btn { background: none; border: 0; color: var(--lavender); font: inherit; cursor: pointer; padding: 0; text-decoration: underline; }

/* Layout */
main { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.section { padding: 56px 0; }
.section-sub { color: var(--muted); margin: 0 0 24px; max-width: 60ch; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; backdrop-filter: blur(6px);
}

/* Hero */
.hero { display: grid; grid-template-columns: 1fr 1.2fr; gap: 40px; align-items: center; padding: 40px 0 24px; }
.hero-moon svg { width: 100%; max-width: 380px; display: block; margin: 0 auto; filter: drop-shadow(0 0 40px rgba(185,167,255,.25)); }
.eyebrow { text-transform: uppercase; letter-spacing: .2em; color: var(--lavender); font-size: .8rem; margin: 0; font-weight: 700; }
.lede { font-size: 1.1rem; max-width: 50ch; }
.moon-stats { display: flex; gap: 28px; flex-wrap: wrap; margin: 24px 0; }
.moon-stats dt { color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .12em; }
.moon-stats dd { margin: 0; color: var(--silver); font-weight: 700; font-size: 1.1rem; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* Fragments */
.fragment-card { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: center; }
.purse { display: flex; flex-direction: column; gap: 4px; }
.purse-label { color: var(--muted); text-transform: uppercase; letter-spacing: .12em; font-size: .8rem; }
.purse-value { font-family: "Cinzel", serif; font-size: 3rem; color: var(--silver); line-height: 1.1; }
.shard { color: var(--lavender); font-size: .7em; text-shadow: 0 0 14px var(--lavender); }
.claim { text-align: center; }
.claim-msg { min-height: 1.6em; color: var(--lavender); margin: 12px 0 0; }
.streak-track { grid-column: 1 / -1; list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px; }
.streak-track li {
  border: 1px solid var(--line); border-radius: 12px; padding: 10px 4px; text-align: center;
  font-size: .8rem; color: var(--muted);
}
.streak-track li .dot { display: block; font-size: 1.3rem; line-height: 1.2; }
.streak-track li.done { border-color: var(--lavender); color: var(--silver); background: rgba(139,108,240,.15); }
.streak-track li.bonus { border-style: dashed; }
.preview-note { grid-column: 1 / -1; color: var(--muted); font-size: .85rem; margin: 0; }

/* APOD */
.apod { display: grid; grid-template-columns: 1.3fr 1fr; gap: 28px; padding: 0; overflow: hidden; }
.apod-media { background: #07061a; min-height: 280px; display: flex; align-items: center; justify-content: center; }
.apod-media img, .apod-media video { width: 100%; height: 100%; max-height: 560px; object-fit: contain; display: block; }
.apod-media .video-wrap { position: relative; width: 100%; aspect-ratio: 16 / 9; }
.apod-media iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.apod-loading, .apod-fallback { color: var(--muted); padding: 24px; text-align: center; }
.apod-body { padding: 24px 24px 24px 0; }
.apod-date { color: var(--lavender); font-size: .85rem; letter-spacing: .1em; text-transform: uppercase; margin: 0 0 6px; }
.apod-text { margin: 0 0 8px; }
.apod-text.clamped { display: -webkit-box; -webkit-line-clamp: 7; -webkit-box-orient: vertical; overflow: hidden; }
.apod-credit { color: var(--muted); font-size: .85rem; margin: 16px 0 0; border-top: 1px solid var(--line); padding-top: 12px; }

/* Constellation */
.const-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 12px; color: var(--muted); flex-wrap: wrap; }
.const-actions { display: flex; gap: 8px; }
#const-board { width: 100%; height: auto; display: block; background: radial-gradient(ellipse at center, #1a1440 0%, #0a0820 80%); border-radius: 14px; touch-action: manipulation; }
#const-board .star { cursor: pointer; }
#const-board .star circle.core { fill: #f1f0ff; transition: r .15s; }
#const-board .star circle.halo { fill: var(--lavender); opacity: 0; transition: opacity .15s; }
#const-board .star:hover circle.halo, #const-board .star.selected circle.halo { opacity: .45; }
#const-board .star .hit { fill: transparent; }
#const-board line.drawn { stroke: var(--silver); stroke-width: 2; stroke-linecap: round; filter: drop-shadow(0 0 4px var(--lavender)); }
#const-board line.wrong { stroke: var(--danger); stroke-width: 2; stroke-dasharray: 4 4; }
#const-board line.hint { stroke: var(--lavender); stroke-width: 1; stroke-dasharray: 3 6; opacity: .35; }
#const-board.solved line.drawn { stroke: #ffffff; }
.const-result { margin-top: 16px; text-align: center; }
.const-result p { color: var(--muted); max-width: 60ch; margin: 0 auto; }

/* Soon */
.soon-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.soon p { color: var(--muted); margin: 0; }
.soon-icon { font-size: 1.6rem; }

/* Footer */
.footer { text-align: center; padding: 40px 20px 60px; color: var(--muted); border-top: 1px solid var(--line); margin-top: 40px; }
.footer .small { font-size: .8rem; }

/* Responsive */
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; text-align: center; padding-top: 16px; }
  .hero-moon svg { max-width: 240px; }
  .moon-stats, .hero-cta { justify-content: center; }
  .lede { margin-inline: auto; }
  .apod { grid-template-columns: 1fr; }
  .apod-body { padding: 0 20px 20px; }
  .fragment-card { grid-template-columns: 1fr; text-align: center; }
  .soon-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .nav nav a:not(.btn) { display: none; }
  .streak-track { gap: 4px; }
  .streak-track li { font-size: .7rem; padding: 8px 2px; }
  .card { padding: 18px; }
  .apod { padding: 0; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}