/* Jumplyx — stargazing & night sky. Night-sky / observatory theme. */

:root {
  --sky: #0b1020;
  --sky-deep: #070a16;
  --panel: #101a30;
  --panel-soft: #16233f;
  --ink: #e6ecf7;
  --ink-soft: #9fb0cd;
  --moon: #f0c75e;
  --star: #6ea8fe;
  --rule: #24324f;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background-color: var(--sky);
  background-image:
    radial-gradient(1.4px 1.4px at 12% 18%, rgba(255,255,255,.55) 50%, transparent 51%),
    radial-gradient(1px 1px at 32% 9%, rgba(255,255,255,.4) 50%, transparent 51%),
    radial-gradient(1.6px 1.6px at 58% 26%, rgba(240,199,94,.5) 50%, transparent 51%),
    radial-gradient(1px 1px at 78% 14%, rgba(255,255,255,.45) 50%, transparent 51%),
    radial-gradient(1.3px 1.3px at 90% 34%, rgba(110,168,254,.5) 50%, transparent 51%),
    radial-gradient(1px 1px at 45% 4%, rgba(255,255,255,.35) 50%, transparent 51%);
  background-attachment: fixed;
  line-height: 1.68;
  font-size: 16.5px;
}

a { color: inherit; }

.wrap { max-width: 1020px; margin: 0 auto; padding: 0 24px; }

/* ---------- header ---------- */
.site-head {
  background: linear-gradient(var(--sky-deep), rgba(11,16,32,.92));
  border-bottom: 1px solid var(--rule);
}
.starline {
  height: 5px;
  background: linear-gradient(90deg, transparent, var(--star) 20%, var(--moon) 50%, var(--star) 80%, transparent);
  opacity: .7;
}
.head-row {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 14px; padding-bottom: 14px; flex-wrap: wrap; gap: 10px;
}
.brand { display: flex; align-items: baseline; gap: 10px; text-decoration: none; }
.brand-star {
  width: 18px; height: 18px; align-self: center; display: inline-block;
  background: var(--moon);
  clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 92%, 50% 71%, 21% 92%, 32% 57%, 2% 35%, 39% 35%);
  box-shadow: 0 0 12px rgba(240,199,94,.8);
}
.brand-name { font-size: 1.32rem; letter-spacing: .14em; font-weight: 800; color: #fff; }
.brand-tag {
  font-size: .66rem; letter-spacing: .24em; text-transform: uppercase;
  color: var(--ink-soft); margin-left: 4px; font-weight: 600;
}
.nav { display: flex; gap: 18px; flex-wrap: wrap; font-size: .92rem; }
.nav a { text-decoration: none; color: var(--ink-soft); font-weight: 500; }
.nav a:hover { color: var(--moon); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- hero ---------- */
.hero { padding: 52px 0 30px; border-bottom: 1px solid var(--rule); }
.eyebrow {
  font-size: .74rem; letter-spacing: .22em; text-transform: uppercase;
  color: var(--star); margin: 0 0 10px; font-weight: 700;
}
.hero h1, main > h1 {
  font-size: 2.4rem; line-height: 1.15; margin: 0 0 14px; font-weight: 800; letter-spacing: -.01em; color: #fff;
}
.hero-sub { font-size: 1.12rem; color: var(--ink-soft); max-width: 56ch; margin: 0; }

/* ---------- category blocks ---------- */
.cat-block { margin: 40px 0; }
.cat-title {
  display: flex; align-items: baseline; gap: 14px;
  font-size: 1.5rem; margin: 0 0 6px; font-weight: 800; color: #fff;
  border-bottom: 1px solid var(--rule); padding-bottom: 8px;
}
.cat-no { font-size: .9rem; color: var(--accent, var(--star)); font-weight: 700; }
.cat-blurb { color: var(--ink-soft); margin: 8px 0 18px; max-width: 66ch; }
.cat-blurb.big { font-size: 1.1rem; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }

.card {
  position: relative;
  display: flex; flex-direction: column; gap: 6px;
  border: 1px solid var(--rule);
  border-top: 3px solid var(--accent, var(--star));
  background: var(--panel);
  padding: 14px 16px 16px;
  text-decoration: none;
  transition: transform .12s ease, box-shadow .12s ease, border-color .12s ease;
}
.card::after {
  content: "✶"; position: absolute; top: 8px; right: 10px;
  color: var(--accent, var(--star)); font-size: .8rem; opacity: .7;
}
.card:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(110,168,254,.16); border-color: var(--accent, var(--star)); }
.card-no { font-size: .72rem; letter-spacing: .12em; color: var(--ink-soft); font-weight: 600; }
.card-name { font-size: 1.24rem; font-weight: 700; line-height: 1.2; color: #fff; }
.card-meta {
  font-size: .72rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--ink-soft); margin-top: 2px; font-weight: 600;
}

/* accent colors per region */
.accent-getting-started { --accent: #6ea8fe; }
.accent-planets-moon { --accent: #f0c75e; }
.accent-constellations-stars { --accent: #9b8cff; }
.accent-deep-sky-objects { --accent: #57c7a2; }
.accent-observing-techniques { --accent: #f2837a; }

/* ---------- article ---------- */
.article { padding-bottom: 40px; }
.breadcrumb { font-size: .88rem; color: var(--ink-soft); margin: 24px 0 6px; }
.breadcrumb a { text-decoration: none; color: var(--ink-soft); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb span { margin: 0 8px; opacity: .5; }

main > h1 { font-size: 2.2rem; margin-top: 6px; }
.zh { font-size: .98rem; font-weight: 600; color: var(--ink-soft); margin-left: 12px; vertical-align: middle; }
.lede { font-size: 1.1rem; color: var(--ink-soft); max-width: 62ch; margin: 0 0 26px; }

/* sky card (facts) */
.skycard {
  position: relative;
  border: 1px solid var(--rule);
  border-top: 3px solid var(--accent, var(--star));
  background: linear-gradient(180deg, var(--panel-soft), var(--panel));
  padding: 24px 22px 18px;
  margin: 0 0 34px;
  border-radius: 4px;
}
.skycard-corner {
  position: absolute; top: 0; right: 0;
  display: flex; gap: 10px; align-items: baseline;
  font-size: .66rem; letter-spacing: .16em; text-transform: uppercase;
  color: var(--ink-soft); background: var(--sky-deep); padding: 4px 12px; font-weight: 700;
  border-bottom-left-radius: 4px;
}
.sc-no { color: var(--accent, var(--star)); }
.skycard-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px 22px; }
.skycard-item { display: flex; flex-direction: column; gap: 2px; }
.d-label {
  font-size: .68rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--star); font-weight: 700;
}
.sc-tags { display: flex; flex-wrap: wrap; gap: 8px; }

.tag {
  font-size: .76rem; letter-spacing: .02em;
  border: 1px solid var(--rule); border-radius: 4px;
  padding: 2px 10px; text-decoration: none; color: var(--ink);
  background: var(--sky-deep); font-weight: 600;
}
a.tag:hover { border-color: var(--accent, var(--star)); color: var(--accent, var(--star)); }
.tag-key { background: var(--panel-soft); border-color: var(--rule); color: var(--ink-soft); }
.tag-dim { color: var(--ink-soft); opacity: .65; }

/* sections */
.sections { max-width: 720px; }
.sec { margin: 0 0 34px; }
.sec h2 { display: flex; align-items: baseline; gap: 12px; font-size: 1.3rem; margin: 0 0 12px; font-weight: 800; color: #fff; }
.sec-no { font-size: .84rem; color: var(--accent, var(--star)); font-weight: 700; }
.sec p { margin: 0 0 12px; color: #d3dcf0; }
.sec p:last-child { margin-bottom: 0; }

.related-nav { max-width: 720px; margin-top: 42px; padding-top: 22px; border-top: 1px solid var(--rule); }
.related-nav h2 { font-size: 1.15rem; margin: 0 0 12px; color: #fff; }

.back { margin-top: 28px; font-size: .95rem; }
.back a { text-decoration: none; color: var(--ink-soft); }
.back a:hover { text-decoration: underline; }

/* legal + notfound */
.legal, .notfound { max-width: 720px; padding-bottom: 48px; }
.legal h2 { font-size: 1.2rem; margin: 26px 0 8px; color: #fff; }
.legal p { margin: 0 0 14px; color: #d3dcf0; }
.legal a { color: var(--star); }
.notfound h1 { font-size: 2rem; }
.notfound a { color: var(--moon); }

/* ---------- footer ---------- */
.site-foot { background: var(--sky-deep); border-top: 1px solid var(--rule); margin-top: 48px; }
.site-foot .wrap { padding-top: 26px; padding-bottom: 22px; }
.site-foot p { margin: 6px 0; font-size: .95rem; color: var(--ink-soft); }
.foot-links { display: flex; gap: 10px; flex-wrap: wrap; }
.foot-links a { color: #c6d2ea; text-decoration: none; }
.foot-links a:hover { text-decoration: underline; }
.foot-links span { opacity: .5; }
.foot-fine { font-size: .8rem; opacity: .7; }

@media (max-width: 640px) {
  .hero h1, main > h1 { font-size: 1.85rem; }
  .head-row { flex-direction: column; align-items: flex-start; }
  .nav { gap: 12px; }
}