/* JaLearn user guide. Tokens follow DESIGN.md (JaLearn Cloud City): primary #285542, surface #f6f7ef,
   on-surface-muted #566a5c (5.39:1 on surface), focus ring 3px primary 4px away, 48px buttons, body 16px+,
   text never below 12px. Nothing on this page moves, so nothing waits for motion. */
:root {
  --primary: #285542;
  --on-primary: #fff9e9;
  --secondary: #5145cd;
  --surface: #f6f7ef;
  --raised: #fff9e9;
  --soft: #e9efdb;
  --ink: #203e33;
  --muted: #566a5c;
  --line: #dce2d5;
  --highlight: #d7ec9c;
  --gutter: 16px;
}
@media (min-width: 650px) { :root { --gutter: 24px; } }
* { box-sizing: border-box; }
html { scroll-behavior: auto; scroll-padding-top: 16px; }
body {
  margin: 0;
  background: var(--surface);
  color: var(--ink);
  font: 400 16px/1.65 'IBM Plex Sans Thai', sans-serif;
}
a { color: var(--primary); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 4px;
  border-radius: 6px;
}
.skip { position: absolute; left: var(--gutter); top: -80px; background: var(--primary); color: var(--on-primary); padding: 12px 16px; border-radius: 12px; z-index: 5; }
.skip:focus { top: 8px; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 var(--gutter); }

header.top { border-bottom: 1px solid var(--line); background: var(--raised); }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 64px; flex-wrap: wrap; padding-top: 8px; padding-bottom: 8px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font: 600 18px/1.3 'Space Grotesk', 'IBM Plex Sans Thai', sans-serif; }
.brand img { width: 36px; height: 36px; display: block; }
.brand small { display: block; font: 400 12px/1.3 'IBM Plex Sans Thai', sans-serif; color: var(--muted); }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 20px; border-radius: 12px; border: 1px solid var(--primary); background: var(--primary); color: var(--on-primary); font: 600 16px/1.3 'IBM Plex Sans Thai', sans-serif; text-decoration: none; box-shadow: 0 4px 0 #1a3a2c; }
.btn:active { transform: translateY(2px); box-shadow: 0 2px 0 #1a3a2c; }
.btn.secondary { background: var(--raised); color: var(--primary); box-shadow: none; }

.hero { padding: 32px 0 8px; }
.hero p.crumb { margin: 0 0 8px; font-size: 14px; color: var(--muted); }
h1 { margin: 0 0 12px; font: 700 clamp(28px, 6vw, 38px)/1.3 'Space Grotesk', 'IBM Plex Sans Thai', sans-serif; color: var(--primary); }
.lead { max-width: 62ch; margin: 0 0 8px; font-size: 18px; line-height: 1.65; }
.proto { display: inline-block; margin: 12px 0 0; padding: 6px 12px; border-radius: 999px; background: var(--soft); font-size: 14px; font-weight: 600; }

.cards { display: grid; gap: 16px; margin: 24px 0 32px; grid-template-columns: 1fr; }
@media (min-width: 650px) { .cards { grid-template-columns: 1fr 1fr; } }
.card { background: var(--raised); border: 1px solid var(--line); border-radius: 18px; padding: 24px; box-shadow: 0 2px 10px rgba(38, 61, 50, 0.06); display: flex; flex-direction: column; gap: 8px; }
.card h2 { margin: 0; font-size: 22px; line-height: 1.4; color: var(--primary); }
.card p { margin: 0; }
.card .count { color: var(--muted); font-size: 14px; }
.card .btn { margin-top: 8px; align-self: flex-start; }

.stages { display: grid; gap: 16px; margin: 24px 0; grid-template-columns: 1fr; }
@media (min-width: 900px) { .stages { grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); } .stages.two { grid-template-columns: repeat(2, 1fr); } }
.stage { background: var(--raised); border: 1px solid var(--line); border-radius: 18px; padding: 16px; }
.stage h3 { margin: 0; font-size: 18px; line-height: 1.4; }
.overview { margin: 24px 0 0; font-size: 22px; line-height: 1.4; color: var(--primary); }
.stage p { margin: 0 0 8px; color: var(--muted); font-size: 14px; }
.stage ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.stage a { display: flex; align-items: center; gap: 10px; min-height: 48px; padding: 8px 12px; border-radius: 12px; background: var(--surface); border: 1px solid var(--line); color: var(--ink); text-decoration: none; font-weight: 600; }
.stage a .num { flex: none; width: 28px; height: 28px; border-radius: 50%; background: var(--secondary); color: var(--on-primary); display: grid; place-items: center; font-size: 14px; }

.chapter { margin: 40px 0; padding: 24px 0 0; border-top: 1px solid var(--line); }
.chapter h2 { margin: 0 0 8px; font-size: 28px; line-height: 1.35; color: var(--primary); display: flex; align-items: center; gap: 12px; }
.chapter h2 .num { flex: none; width: 36px; height: 36px; border-radius: 50%; background: var(--secondary); color: var(--on-primary); display: grid; place-items: center; font-size: 18px; }
.shot { margin: 16px 0; }
.shot img { display: block; width: 100%; height: auto; border: 1px solid var(--line); border-radius: 18px; background: var(--soft); }
.shot picture { display: block; max-width: 390px; margin: 0 auto; }
@media (min-width: 650px) { .shot picture { max-width: none; } }
.shot figcaption { margin-top: 8px; font-size: 14px; color: var(--muted); text-align: center; }
ol.points { list-style: none; margin: 16px 0; padding: 0; display: grid; gap: 8px; }
ol.points li { display: grid; grid-template-columns: 36px 1fr; gap: 12px; align-items: start; background: var(--raised); border: 1px solid var(--line); border-radius: 12px; padding: 12px; }
ol.points .n { width: 28px; height: 28px; border-radius: 50%; background: var(--secondary); color: var(--on-primary); display: grid; place-items: center; font: 700 14px/1 'IBM Plex Sans Thai', sans-serif; }
ol.points b { display: block; }
.tip { margin: 16px 0; padding: 16px; border-radius: 12px; background: var(--soft); border: 1px solid var(--line); }
.tip strong { display: block; margin-bottom: 4px; }
.try { margin-top: 16px; }
.toplink { display: inline-block; margin-top: 8px; font-size: 14px; }

.faq { margin: 40px 0; }
.faq h2 { font-size: 28px; line-height: 1.35; color: var(--primary); margin: 0 0 12px; }
.faq details { background: var(--raised); border: 1px solid var(--line); border-radius: 12px; margin-bottom: 8px; }
.faq summary { cursor: pointer; padding: 12px 16px; min-height: 48px; font-weight: 600; display: flex; align-items: center; }
.faq details p { margin: 0; padding: 0 16px 16px; }

footer.end { margin-top: 48px; padding: 24px 0 40px; border-top: 1px solid var(--line); background: var(--raised); color: var(--muted); font-size: 14px; }
footer.end p { margin: 0 0 8px; max-width: 70ch; }