/* StepPage shared stylesheet */

:root {
  --bg: #ffffff;
  --text: #111111;
  --accent: #1e5fd9;
  --callout-bg: #eaf1ff;
  --callout-border: #1e5fd9;
  --muted: #444444;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111111;
    --text: #f2f2f2;
    --accent: #6ea3ff;
    --callout-bg: #1b2a44;
    --callout-border: #6ea3ff;
    --muted: #cccccc;
  }
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  padding: 0 16px;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 18px;
  line-height: 1.5;
}

.page {
  max-width: 640px;
  margin: 0 auto;
  padding-bottom: 48px;
}

a {
  color: var(--accent);
}

.back-link {
  display: inline-block;
  margin: 20px 0;
  font-size: 17px;
}

h1 {
  font-size: 28px;
  line-height: 1.3;
  margin: 0.4em 0;
}

h2 {
  font-size: 22px;
  line-height: 1.3;
  color: var(--accent);
  margin: 1.4em 0 0.6em;
}

p {
  margin: 0.8em 0;
}

ol {
  padding-left: 1.4em;
  margin: 0.8em 0;
}

ol li {
  font-size: 19px;
  margin-bottom: 0.6em;
}

ul {
  padding-left: 1.4em;
  margin: 0.8em 0;
}

ul li {
  font-size: 19px;
  margin-bottom: 0.6em;
}

figure {
  margin: 1.4em 0;
  text-align: center;
}

figure img {
  width: 100%;
  max-width: 420px;
  height: auto;
  border-radius: 12px;
  display: block;
  margin: 0 auto;
}

figcaption {
  font-size: 17px;
  color: var(--muted);
  margin-top: 0.6em;
}

.callout {
  border: 2px solid var(--callout-border);
  background: var(--callout-bg);
  border-radius: 12px;
  padding: 16px;
  margin: 1.4em 0;
  text-align: center;
}

.callout p {
  margin: 0;
  font-size: 22px;
  font-weight: bold;
}

/* Index page */
.guide-list {
  list-style: none;
  padding: 0;
  margin: 1.4em 0;
}

.guide-list li {
  margin-bottom: 0.6em;
}

.guide-card {
  display: block;
  padding: 20px;
  border: 2px solid var(--accent);
  border-radius: 12px;
  font-size: 20px;
  font-weight: bold;
  text-decoration: none;
  color: var(--text);
}

.guide-card:hover,
.guide-card:focus {
  background: var(--callout-bg);
}

.intro {
  font-size: 19px;
  color: var(--muted);
}

/* Bilingual guide page */
.jump {
  font-size: 16px;
  color: var(--muted);
  margin-top: 0.4em;
}

hr.lang-split {
  width: 100%;
  height: 2px;
  border: none;
  background: var(--muted);
  opacity: 0.3;
  margin: 2.5em 0;
}

.zh {
  font-family: system-ui, -apple-system, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
}

.zh p,
.zh li,
.zh figcaption {
  line-height: 1.7;
}

.lang-note {
  font-size: 16px;
  color: var(--muted);
  font-weight: normal;
}