/* Sorting Geography — website
   Palette is the app's approved identity (ux-foundation.md, Ra'uf 2026-06-07):
   Forest Green primary, Ocean Blue secondary, Violet for REWARDS ONLY,
   parchment->ink neutrals. HARD RULE: no gold, no orange, anywhere.
   Solid colours, no gradients; soft radii with a defined border. */
:root {
  --green:       #103A22;
  --green-deep:  #0b2a18;
  --green-soft:  #18552F;
  --ocean:       #1c4f6b;
  --violet:      #4c3a75;
  --parchment:   #f5f1e6;
  --card:        #fffdf7;
  --ink:         #16150f;
  --ink-soft:    #4a473c;
  --rule:        #d9d2bf;
  --radius:      20px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --green: #18552F; --green-deep: #0d2f1b; --green-soft: #1f6b3c;
    --ocean: #2b6c8e; --violet: #6a52a3;
    --parchment: #000000; --card: #131310; --ink: #f3efe2;
    --ink-soft: #b0aa97; --rule: #2e2c24;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--parchment); color: var(--ink);
  font: 17px/1.65 ui-rounded, "SF Pro Rounded", system-ui, -apple-system, Segoe UI, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--green-soft); text-underline-offset: 3px; }
@media (prefers-color-scheme: dark) { a { color: #7fc99a; } }

.bar {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1rem clamp(1rem, 4vw, 2.5rem);
  background: var(--green); color: #f5f1e6;
}
.bar a { color: #e9e3d2; text-decoration: none; }
.bar nav a { margin-left: 1.1rem; font-size: .95rem; opacity: .9; }
.bar nav a:hover { opacity: 1; text-decoration: underline; }
.wordmark { font-weight: 700; letter-spacing: -.01em; font-size: 1.15rem; }
.foot { margin-top: 4rem; font-size: .9rem; background: var(--green-deep); }

.hero {
  padding: clamp(3rem, 9vw, 6rem) clamp(1rem, 4vw, 2.5rem);
  background: var(--green); color: #f5f1e6; text-align: center;
}
.hero h1 { font-size: clamp(2rem, 6vw, 3.2rem); margin: 0 0 .6rem; letter-spacing: -.02em; }
.hero p { max-width: 34rem; margin: 0 auto; font-size: clamp(1.05rem, 2.4vw, 1.25rem); opacity: .93; }
.tag {
  display: inline-block; margin-bottom: 1.4rem; padding: .3rem .8rem;
  border: 1px solid rgba(245,241,230,.45); border-radius: 999px;
  font-size: .8rem; letter-spacing: .06em; text-transform: uppercase;
}

main { max-width: 62rem; margin: 0 auto; padding: clamp(2rem, 6vw, 3.5rem) clamp(1rem, 4vw, 2.5rem); }
.prose { max-width: 46rem; }
h2 { font-size: 1.5rem; margin: 2.6rem 0 .8rem; letter-spacing: -.01em; }
.lede { font-size: 1.15rem; color: var(--ink-soft); }

.cards { display: grid; gap: 1.1rem; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); margin-top: 2rem; }
.card {
  background: var(--card); border: 1px solid var(--rule); border-radius: var(--radius);
  padding: 1.4rem 1.5rem;
}
.card h3 { margin: 0 0 .45rem; font-size: 1.1rem; }
.card p  { margin: 0; color: var(--ink-soft); font-size: .97rem; }

.example {
  background: var(--card); border: 1px solid var(--rule); border-radius: var(--radius);
  padding: 1.5rem; margin-top: 1.6rem;
}
.example ol { margin: .6rem 0 0; padding-left: 1.3rem; }
.example li { margin: .35rem 0; }
.q { font-weight: 600; }
.muted { color: var(--ink-soft); font-size: .95rem; }

table.sources { width: 100%; border-collapse: collapse; margin-top: 1.6rem; font-size: .95rem; }
table.sources th, table.sources td {
  text-align: left; padding: .7rem .6rem; border-bottom: 1px solid var(--rule); vertical-align: top;
}
table.sources th { font-size: .8rem; letter-spacing: .05em; text-transform: uppercase; color: var(--ink-soft); }
td.axes { color: var(--ink-soft); }
.table-wrap { overflow-x: auto; }
code { background: var(--card); border: 1px solid var(--rule); border-radius: 6px; padding: .1rem .35rem; font-size: .9em; }

/* ---- Launch-email signup (the "When?" section) --------------------------
   Palette only: forest green, ocean blue, parchment. No gold, no orange —
   the identity reserves gold for one in-game reward moment and CI enforces
   the ban here. */
.notify { margin-top: 1.25rem; }
.notify label { display: block; margin-bottom: .5rem; }
.notify-row { display: flex; flex-wrap: wrap; gap: .5rem; }
.notify input {
  flex: 1 1 14rem; min-width: 0; padding: .7rem .85rem;
  font: inherit; color: var(--ink);
  background: var(--card); border: 1px solid var(--rule);
  border-radius: calc(var(--radius) / 2);
}
.notify input:focus-visible { outline: 2px solid var(--ocean); outline-offset: 1px; }
.notify button {
  flex: 0 0 auto; padding: .7rem 1.1rem; font: inherit; font-weight: 600;
  color: var(--parchment); background: var(--green);
  border: 1px solid var(--green); border-radius: calc(var(--radius) / 2);
  cursor: pointer;
}
.notify button:hover { background: var(--green-soft); border-color: var(--green-soft); }
.notify button:disabled { opacity: .6; cursor: default; }
.notify-msg { min-height: 1.4em; margin: .6rem 0 0; }
.notify-msg.ok { color: var(--green); font-weight: 600; }
.notify-msg.bad { color: var(--ocean); font-weight: 600; }
.notify-fine { margin-top: .35rem; font-size: .9rem; }