/* go.tringle.education: the front door to the classroom activities.
   The K-Ray look the family's teacher pages use (cream panels, ink outlines,
   Fredoka headings, Atkinson Hyperlegible text) on the same calm paper, because
   this is a page for choosing, not playing. Styles live here and nowhere else:
   the page is served under a strict Content Security Policy. */

@import url("fonts/fonts.css");

:root {
  --paper: #efe7d6;
  --panel: #fffaf0;
  --ink: #23203a;
  --soft: #6a6192;
  --orange: #FB7A18;
  --yellow: #FFC948;
  --green: #3aa35b;
  --display: 'Fredoka', system-ui, sans-serif;
  --ui: 'Atkinson Hyperlegible', system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { background: var(--paper); }
body {
  margin: 0;
  min-height: 100%;
  background: var(--paper);
  color: var(--ink);
  font: 18px/1.45 var(--ui);
}

.top {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 24px 8px;
}
.top img { width: 40px; height: 40px; }
.top h1 { margin: 0; font: 700 34px/1.1 var(--display); }
.top h1 span { font: 700 18px var(--ui); color: var(--soft); margin-left: 10px; }

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 8px 16px 56px;
  display: grid;
  gap: 18px;
}
main > * { min-width: 0; }

.lede { font-size: 20px; margin: 0 8px 8px; }
.lede b { color: var(--orange); }

/* A card per activity. The whole card is the link, so a child's tap lands
   anywhere on it; the button is the part that says so. */
.cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 18px;
}
.card {
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 8px;
  background: var(--panel);
  border: 3px solid var(--ink);
  border-radius: 16px;
  padding: 18px 20px;
  color: inherit;
  text-decoration: none;
  box-shadow: 4px 4px 0 var(--ink);
  transition: transform 80ms ease, box-shadow 80ms ease;
}
.card:hover, .card:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--ink);
}
.card:focus-visible { outline: 3px solid var(--orange); outline-offset: 3px; }
.card:active { transform: translate(1px, 1px); box-shadow: 2px 2px 0 var(--ink); }
.card h2 { margin: 0; font: 700 26px/1.15 var(--display); }
.card h2 small { display: block; font: 700 15px var(--ui); color: var(--soft); margin-top: 2px; }
.card p { margin: 0; }
.card .years { font-size: 15px; color: var(--soft); }
.card .go {
  justify-self: start;
  margin-top: 6px;
  padding: 8px 18px;
  border: 3px solid var(--ink);
  border-radius: 12px;
  background: var(--yellow);
  font: 700 18px var(--ui);
}

/* What every activity promises, said once, under the cards. */
.promise {
  background: var(--panel);
  border: 3px solid var(--ink);
  border-radius: 16px;
  padding: 16px 20px;
}
.promise h2 { margin: 0 0 6px; font: 700 22px/1.2 var(--display); }
.promise ul { margin: 0; padding-left: 22px; }
.promise li { margin: 4px 0; }

footer {
  margin: 24px 8px 0;
  font-size: 15px;
  color: var(--soft);
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
}
footer a { color: var(--soft); }
footer a:hover { color: var(--ink); }

@media (max-width: 480px) {
  .top h1 { font-size: 28px; }
  .top h1 span { display: block; margin: 2px 0 0; }
  .lede { font-size: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  .card { transition: none; }
}