/* Paleo Planet Sim -- marketing site. System font stack, no frameworks, no external
   fonts or scripts, self-contained. Palette pulled from the app icon: deep space navy,
   globe blues/greens, the red/blue temperature crescent, the blue atmosphere glow. */

:root {
  color-scheme: dark light;

  /* core navy (hero, featured planet, footer) */
  --navy-900: #04060d;
  --navy-800: #090d1b;
  --navy-700: #111833;
  --navy-600: #1a2142;
  --navy-border: #263058;

  /* ink on navy */
  --navy-ink: #eef1fb;
  --navy-ink-dim: #b7c0dd;
  --navy-ink-faint: #7d88ac;

  /* accent, pulled from the icon's atmosphere glow */
  --glow: #5ab4ff;
  --glow-dim: #2c6ea8;
  --green: #4fcf8a;
  --warm: #e2614a;
  --gold: #ffcf6a;
  --silver: #d9e0ec;
  --bronze: #e0a066;

  /* light sections */
  --paper: #f6f7fb;
  --paper-raised: #ffffff;
  --paper-border: #e3e6f0;
  --ink: #10142a;
  --ink-dim: #4b526e;
  --muted: #7a8099;

  --radius: 14px;
  --radius-sm: 9px;
  --max-w: 980px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font: 16px/1.55 var(--font);
  background: var(--paper);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; }

.wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 20px; }

h1, h2, h3 { font-weight: 700; letter-spacing: -0.01em; margin: 0 0 0.4em; }

.eyebrow {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--glow);
  margin: 0 0 10px;
}

/* ---------------------------------------------------------------- site header ---- */
.site-header {
  background: var(--navy-900);
  border-bottom: 1px solid var(--navy-border);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 14px;
  padding-bottom: 14px;
  flex-wrap: wrap;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--navy-ink);
}
.brand img { width: 28px; height: 28px; border-radius: 50%; }
.site-header nav { display: flex; gap: 20px; flex-wrap: wrap; }
.site-header nav a {
  color: var(--navy-ink-dim);
  text-decoration: none;
  font-size: 0.88rem;
}
.site-header nav a:hover { color: var(--glow); }

/* ----------------------------------------------------------------------- hero ---- */
.hero {
  position: relative;
  background: radial-gradient(ellipse 900px 520px at 78% 18%, #163058 0%, transparent 60%),
              linear-gradient(180deg, var(--navy-900) 0%, var(--navy-800) 100%);
  color: var(--navy-ink);
  overflow: hidden;
  padding: 56px 0 50px;
}
.hero::before {
  /* starfield */
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 20%, #ffffff66 50%, transparent 51%),
    radial-gradient(1px 1px at 28% 65%, #ffffff44 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 44% 30%, #ffffff55 50%, transparent 51%),
    radial-gradient(1px 1px at 63% 75%, #ffffff40 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 81% 40%, #ffffff55 50%, transparent 51%),
    radial-gradient(1px 1px at 92% 15%, #ffffff44 50%, transparent 51%),
    radial-gradient(1px 1px at 8% 85%, #ffffff40 50%, transparent 51%);
  pointer-events: none;
}
.hero .wrap {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 36px;
  align-items: center;
}
.hero-globe { display: flex; justify-content: center; }
.hero-globe img {
  width: min(320px, 70vw);
  border-radius: 50%;
  filter: drop-shadow(0 0 60px rgba(90, 180, 255, 0.35));
}
.hero h1 { font-size: clamp(2rem, 4.4vw, 2.9rem); line-height: 1.08; margin-bottom: 12px; }
.hero .tagline { font-size: 1.1rem; color: var(--navy-ink-dim); margin: 0 0 22px; max-width: 46ch; }
.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }

.btn-store {
  display: inline-block;
  background: var(--glow);
  color: #04141c;
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  padding: 13px 22px;
  border-radius: 10px;
}
.btn-store:hover { filter: brightness(1.08); }
.badge-soon {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--navy-border);
  border-radius: 10px;
  padding: 10px 16px;
  font-size: 0.85rem;
  color: var(--navy-ink-dim);
  background: var(--navy-700);
}
.badge-soon .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--glow); box-shadow: 0 0 8px var(--glow);
}

.hero-sub {
  margin-top: 22px;
  font-size: 0.85rem;
  color: var(--navy-ink-faint);
}

@media (max-width: 760px) {
  .hero .wrap { grid-template-columns: 1fr; text-align: center; }
  .hero .cta { justify-content: center; }
  .hero-globe { order: -1; }
}

/* ------------------------------------------------------------------- shots ---- */
.shots-section {
  background: var(--navy-800);
  padding: 44px 0 52px;
  border-bottom: 1px solid var(--navy-border);
}
.shots-section h2 { color: var(--navy-ink); text-align: center; margin-bottom: 4px; }
.shots-section .section-sub {
  text-align: center; color: var(--navy-ink-faint); font-size: 0.92rem; margin-bottom: 26px;
}
.shots {
  display: flex;
  gap: 18px;
  overflow-x: auto;
  padding: 6px 2px 10px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.shots-carousel { position: relative; }
.shots-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 2;
  width: 44px; height: 44px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.18);
  background: rgba(10,16,34,0.78); color: #fff; font-size: 28px; line-height: 1;
  display: flex; align-items: center; justify-content: center; padding: 0 0 3px;
  cursor: pointer; box-shadow: 0 6px 18px rgba(0,0,0,0.4);
  transition: opacity .2s ease, background .2s ease;
}
.shots-arrow:hover { background: rgba(30,60,120,0.9); }
.shots-arrow:focus-visible { outline: 2px solid #8fb8ff; outline-offset: 2px; }
.shots-arrow.prev { left: -14px; }
.shots-arrow.next { right: -14px; }
.shots-arrow.hidden { opacity: 0; pointer-events: none; }
@media (max-width: 560px) { .shots-arrow.prev { left: 2px; } .shots-arrow.next { right: 2px; } }
.shots::-webkit-scrollbar { height: 8px; }
.shots::-webkit-scrollbar-thumb { background: var(--navy-600); border-radius: 8px; }
/* The marketing panels (store/screenshots-1.0/web) carry their own device frame and
   caption, so no extra phone bezel here -- just the panel, rounded. */
.shot-phone {
  flex: 0 0 auto;
  width: 240px;
  scroll-snap-align: center;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 16px 36px rgba(0,0,0,0.45);
}
.shot-phone img { display: block; width: 100%; }

/* ------------------------------------------------------------- how it works ---- */
.how-it-works { background: var(--paper); padding: 56px 0; }
.how-it-works h2 { text-align: center; margin-bottom: 36px; }
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: step;
}
.step {
  background: var(--paper-raised);
  border: 1px solid var(--paper-border);
  border-radius: var(--radius);
  padding: 20px 18px;
}
.step .num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--navy-900);
  color: var(--glow);
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 12px;
}
.step h3 { font-size: 1.02rem; margin-bottom: 6px; }
.step p { font-size: 0.88rem; color: var(--ink-dim); margin: 0; }
/* Details collapsed by default (Joe, 1 Oct 2026): a one-line lead, "More" expands. */
.step p.lead { font-size: 0.95rem; color: var(--ink, inherit); margin: 0 0 6px; }
.step details summary { cursor: pointer; font-size: 0.85rem; font-weight: 600; color: #2f6fd6;
  list-style: none; display: inline-flex; align-items: center; gap: 4px; }
.step details summary::-webkit-details-marker { display: none; }
.step details summary::after { content: "\25BE"; font-size: 0.8em; transition: transform .15s; }
.step details[open] summary::after { transform: rotate(180deg); }
.step details p { margin-top: 8px; }
.step .arrow { display: none; }

@media (max-width: 820px) {
  .steps { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .steps { grid-template-columns: 1fr; }
}

/* -------------------------------------------------------------- featured ---- */
.featured {
  background: linear-gradient(180deg, var(--navy-900), var(--navy-700));
  color: var(--navy-ink);
  padding: 56px 0;
}
.featured h2 { text-align: center; margin-bottom: 4px; }
.featured .section-sub { text-align: center; color: var(--navy-ink-faint); font-size: 0.92rem; margin-bottom: 30px; }
.featured-card {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 32px;
  align-items: center;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--navy-border);
  border-radius: var(--radius);
  padding: 28px;
}
.featured-card img.planet {
  width: 100%;
  border-radius: 50%;
  filter: drop-shadow(0 0 40px rgba(90,180,255,0.3));
}
.featured-card h3 { font-size: 1.5rem; margin-bottom: 4px; }
.featured-card .subtitle { color: var(--navy-ink-dim); margin-bottom: 14px; }
.featured-card .desc p { color: var(--navy-ink-dim); font-size: 0.95rem; margin: 0 0 12px; }
.compare-table { width: 100%; border-collapse: collapse; margin-top: 18px; font-size: 0.95rem; }
.compare-table th { text-align: right; font-weight: 600; font-size: 0.78rem; letter-spacing: .04em;
  text-transform: uppercase; color: rgba(255,255,255,0.6); padding: 0 0 8px 12px; }
.compare-table th:first-child { text-align: left; padding-left: 0; }
.compare-table td { padding: 9px 0; border-top: 1px solid rgba(255,255,255,0.1); color: rgba(255,255,255,0.78); }
.compare-table td.v { text-align: right; font-weight: 700; color: #fff; padding-left: 12px; white-space: nowrap; }
.compare-table td.v.muted { font-weight: 500; color: rgba(255,255,255,0.62); }
.featured-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px;
  margin-top: 18px;
}
.fact { border-top: 1px solid var(--navy-border); padding-top: 8px; }
.fact .label { font-size: 0.72rem; color: var(--navy-ink-faint); text-transform: uppercase; letter-spacing: 0.06em; }
.fact .value { font-size: 1.1rem; font-weight: 700; color: var(--navy-ink); margin-top: 2px; }

@media (max-width: 720px) {
  .featured-card { grid-template-columns: 1fr; text-align: center; }
  .featured-card img.planet { width: 220px; margin: 0 auto; }
  .fact { text-align: left; }
}

/* ------------------------------------------------------------- leaderboards ---- */
.boards-section { background: var(--paper); padding: 56px 0; }
.boards-section h2 { text-align: center; margin-bottom: 4px; }
.boards-section .section-sub { text-align: center; color: var(--muted); font-size: 0.92rem; margin-bottom: 8px; }
.updated-at { text-align: center; font-size: 0.78rem; color: var(--muted); margin-bottom: 26px; }

.tab-row {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.switch {
  display: inline-flex;
  border: 1px solid var(--paper-border);
  border-radius: 999px;
  overflow: hidden;
  background: var(--paper-raised);
}
.switch button {
  background: transparent;
  border: none;
  padding: 9px 18px;
  font: inherit;
  font-size: 0.85rem;
  color: var(--ink-dim);
  cursor: pointer;
}
.switch button.active { background: var(--navy-900); color: #fff; }

.board-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}
.board-card {
  background: var(--paper-raised);
  border: 1px solid var(--paper-border);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.board-card h3 { font-size: 1rem; margin-bottom: 2px; }
.board-card .board-label { font-size: 0.76rem; color: var(--muted); margin-bottom: 12px; }
.board-rows { list-style: none; margin: 0; padding: 0; }
.board-rows li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 6px 0;
  border-top: 1px solid var(--paper-border);
  font-size: 0.88rem;
}
.board-rows li:first-child { border-top: none; }
.board-rows .rank { width: 2.2em; flex: 0 0 auto; color: var(--muted); font-variant-numeric: tabular-nums; }
.board-rows .name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--ink); }
.board-rows .init-label { display: block; font-size: 0.72rem; color: var(--muted); }
.board-rows .value { flex: 0 0 auto; font-variant-numeric: tabular-nums; font-weight: 600; color: var(--ink); }
.board-rows li.ref { opacity: 0.6; }
.board-rows li.ref .rank {
  font-size: 0.66rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.board-rows li.rank-1 .rank { color: var(--gold); font-weight: 700; }
.board-rows li.rank-2 .rank { color: #8a93ab; font-weight: 700; }
.board-rows li.rank-3 .rank { color: var(--bronze); font-weight: 700; }

.boards-empty, .challenges-empty {
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
  padding: 30px 0;
}

/* --------------------------------------------------------------- challenges ---- */
.challenges-section { background: var(--paper-raised); padding: 56px 0; border-top: 1px solid var(--paper-border); }
.challenges-section h2 { text-align: center; margin-bottom: 4px; }
.challenges-section .section-sub { text-align: center; color: var(--muted); font-size: 0.92rem; margin-bottom: 30px; }

.challenge-card {
  background: linear-gradient(180deg, #fbfbff, var(--paper));
  border: 1px solid var(--paper-border);
  border-radius: var(--radius);
  padding: 24px 26px;
  margin-bottom: 20px;
}
/* The challenge's own trophy art, beside the text (Joe, 1 Oct 2026). */
.challenge-trophy { float: right; width: 180px; height: 180px; margin: -6px -6px 8px 16px;
  filter: drop-shadow(0 10px 18px rgba(20,30,60,0.18)); }
@media (max-width: 560px) { .challenge-trophy { width: 112px; height: 112px; margin-left: 10px; } }
.standings, .rules-link { clear: both; }
.challenge-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.challenge-emoji { font-size: 1.8rem; line-height: 1; }
.challenge-head h3 { font-size: 1.2rem; margin: 0; }
.challenge-tagline { color: var(--ink-dim); font-size: 0.92rem; margin: 2px 0 14px; }
.challenge-desc { font-size: 0.9rem; color: var(--ink-dim); margin: 0 0 12px; }
.challenge-meta { display: flex; gap: 18px; flex-wrap: wrap; font-size: 0.82rem; color: var(--muted); margin-bottom: 16px; }
.challenge-meta strong { color: var(--ink); }
.countdown { font-variant-numeric: tabular-nums; }
.prizes-line span { margin-right: 8px; }

.standings { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; }
.standing-row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: var(--paper);
  font-size: 0.85rem;
}
.standing-row .rank { color: var(--muted); width: 1.4em; }
.standing-row.rank-1 { background: #fff6e0; }
.standing-row.rank-2 { background: #f1f3f8; }
.standing-row.rank-3 { background: #fbe9dd; }

.challenge-card.closed {
  padding: 16px 20px;
  opacity: 0.85;
}
.challenge-card.closed .challenge-head h3 { font-size: 1rem; }
.challenge-card.closed .challenge-emoji { font-size: 1.3rem; }
.podium-line { font-size: 0.85rem; color: var(--ink-dim); }
.podium-line b { color: var(--ink); }

.rules-link { font-size: 0.8rem; }

/* -------------------------------------------------------------------- footer ---- */
.site-footer {
  background: var(--navy-900);
  color: var(--navy-ink-faint);
  padding: 40px 0 46px;
  font-size: 0.85rem;
}
.site-footer .footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.site-footer a { color: var(--navy-ink-dim); text-decoration: none; }
.site-footer a:hover { color: var(--glow); }
.footer-links { display: flex; gap: 16px; flex-wrap: wrap; }
.footer-sibling { margin-top: 4px; }
.footer-copy { border-top: 1px solid var(--navy-border); padding-top: 16px; }

/* -------------------------------------------------------------- legal pages ---- */
.legal-header {
  background: var(--navy-900);
  color: var(--navy-ink);
  padding: 30px 0 26px;
  border-bottom: 1px solid var(--navy-border);
}
.legal-header .wrap {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.legal-header h1 { font-size: 1.5rem; margin-bottom: 4px; }
.legal-header .tagline { color: var(--navy-ink-faint); font-size: 0.85rem; }
.legal-header nav a { color: var(--navy-ink-dim); text-decoration: none; font-size: 0.85rem; margin-left: 4px; }
.legal-header nav a:hover { color: var(--glow); }

.legal-body { padding: 34px 0 60px; max-width: 760px; margin: 0 auto; }
.legal-body .panel {
  background: var(--paper-raised);
  border: 1px solid var(--paper-border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 16px;
}
.legal-body h2 { font-size: 1.05rem; color: var(--ink); }
.legal-body p, .legal-body li { font-size: 0.92rem; color: var(--ink-dim); }
.legal-body a { color: var(--glow-dim); }
.legal-body ul { padding-left: 1.2em; }

@media (max-width: 480px) {
  .legal-body { padding: 26px 16px 50px; }
  .legal-body .panel { padding: 16px 18px; }
}

/* 30 Oct 2026: the Mac App Store listing is the same link; say so under the badge. */
.store-note{display:block;margin-top:8px;font-size:13px;color:var(--muted,#6b6b70)}