/* ════ civic-notes 共用樣式 ════ */
/* 每個議題頁面可以覆寫以下 CSS 變數來更換主題色 */

:root {
  --color-primary: #2a9d8f;
  --color-primary-dark: #238277;
  --color-heading: #264653;
  --color-hero-from: #e8f5f1;
  --color-hero-to: #e3eef9;
  --color-hero-title: #1a6b5a;
  --color-card-bg: #f7fbfa;
  --color-card-border: #d4e8e2;
  --color-prompt-bg: #f4f8f7;
  --color-highlight-bg: #fdf6ec;
  --color-highlight-border: #e9a820;
  --color-highlight-text: #5a4a20;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  color: #1a1a1a;
  background: #fff;
  line-height: 1.8;
  font-size: 17px;
}

/* ── Site Nav ── */
.site-nav {
  background: #fff;
  border-bottom: 1px solid #eee;
  padding: 0.6rem 1.5rem;
  font-size: 0.85rem;
}
.site-nav a {
  color: var(--color-primary);
  text-decoration: none;
}
.site-nav a:hover { text-decoration: underline; }

/* ── Hero ── */
.hero {
  text-align: center;
  padding: 4rem 1.5rem 3rem;
  background: linear-gradient(135deg, var(--color-hero-from) 0%, var(--color-hero-to) 100%);
}
.hero h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-hero-title);
  margin-bottom: 0.75rem;
}
.hero .subtitle {
  font-size: 1.1rem;
  color: #555;
  max-width: 560px;
  margin: 0 auto;
}
.hero .topic-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
  border-radius: 20px;
  padding: 0.2em 0.9em;
  margin-bottom: 1rem;
}

/* ── Sections ── */
section {
  max-width: 740px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #fff;
  background: var(--color-primary);
  border-radius: 4px;
  padding: 0.2em 0.7em;
  margin-bottom: 0.75rem;
}
.section-label.opinion {
  background: #888;
}
section h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 1.25rem;
}
section p {
  margin-bottom: 1rem;
  color: #333;
}
section h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-heading);
  margin: 1.5rem 0 0.6rem;
}

/* ── Divider ── */
.divider {
  max-width: 740px;
  margin: 0 auto;
  border: none;
  border-top: 1px solid #e0e0e0;
}

/* ── Highlight box ── */
.highlight-box {
  background: var(--color-highlight-bg);
  border-left: 4px solid var(--color-highlight-border);
  padding: 1rem 1.25rem;
  border-radius: 0 8px 8px 0;
  margin: 1.25rem 0;
  font-size: 0.95rem;
  color: var(--color-highlight-text);
}

/* ── Opinion box ── */
.opinion-box {
  background: #f5f5f5;
  border-left: 4px solid #888;
  padding: 1rem 1.25rem;
  border-radius: 0 8px 8px 0;
  margin: 1.25rem 0;
  font-size: 0.95rem;
  color: #444;
}
.opinion-box .label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: #888;
  margin-bottom: 0.4rem;
}

/* ── Cards ── */
.cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}
.card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: 12px;
  padding: 1.25rem;
}
.card .card-num {
  display: inline-block;
  width: 28px; height: 28px;
  line-height: 28px;
  text-align: center;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 0.4rem;
}
.card p {
  font-size: 0.92rem;
  color: #555;
  margin-bottom: 0;
}

/* ── Accordion ── */
.qa-list { margin-top: 1rem; }
details {
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  margin-bottom: 0.75rem;
  overflow: hidden;
}
details[open] { border-color: var(--color-primary); }
summary {
  cursor: pointer;
  padding: 1rem 1.25rem;
  font-weight: 600;
  color: var(--color-heading);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: "+";
  font-size: 1.3rem;
  color: var(--color-primary);
  transition: transform 0.2s;
  flex-shrink: 0;
  margin-left: 1rem;
}
details[open] summary::after { content: "−"; }
.qa-answer {
  padding: 0 1.25rem 1.25rem;
  color: #444;
  font-size: 0.95rem;
}
.qa-answer p { margin-bottom: 0.75rem; }
.qa-answer p:last-child { margin-bottom: 0; }

/* ── Prompt box ── */
.prompt-section { background: var(--color-prompt-bg); }
.prompt-box {
  position: relative;
  background: #1a1a2e;
  color: #e0e0e0;
  border-radius: 10px;
  padding: 1.25rem;
  padding-top: 3rem;
  margin-top: 1.25rem;
  font-family: "SF Mono", "Fira Code", "Consolas", monospace;
  font-size: 0.82rem;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 400px;
  overflow-y: auto;
}
.copy-btn {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.4em 0.9em;
  font-size: 0.85rem;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s;
}
.copy-btn:hover { background: var(--color-primary-dark); }
.copy-btn.copied { background: #555; }
.prompt-intro { font-size: 0.95rem; color: #555; }

/* ── Footer ── */
footer {
  text-align: center;
  padding: 2rem 1.5rem;
  font-size: 0.82rem;
  color: #999;
  border-top: 1px solid #eee;
}
footer a { color: var(--color-primary); }

/* ── Index page ── */
.index-hero {
  text-align: center;
  padding: 4rem 1.5rem 3rem;
  background: linear-gradient(135deg, #f0f4ff 0%, #e8f5f1 100%);
}
.index-hero h1 {
  font-size: 2rem;
  font-weight: 800;
  color: #1a3a5c;
  margin-bottom: 0.75rem;
}
.index-hero p {
  font-size: 1.05rem;
  color: #555;
  max-width: 540px;
  margin: 0 auto;
}
.topic-grid {
  max-width: 740px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}
.topic-card {
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 14px;
  padding: 1.5rem;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.2s, border-color 0.2s;
  display: block;
}
.topic-card:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  border-color: #bbb;
}
.topic-card .topic-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  margin-bottom: 0.75rem;
}
.topic-card h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 0.4rem;
}
.topic-card p {
  font-size: 0.88rem;
  color: #666;
  line-height: 1.6;
}

/* ── Responsive ── */
@media (max-width: 600px) {
  .hero h1 { font-size: 1.5rem; }
  .cards { grid-template-columns: 1fr; }
  section { padding: 2rem 1.25rem; }
  .topic-grid { grid-template-columns: 1fr; padding: 2rem 1.25rem; }
}