/* 講臺語 Kong Tâi-gí — 共用樣式（莫蘭迪冷調 + 溫暖）
   對齊 App 主題 app/lib/core/theme/app_theme.dart */

:root {
  --primary: #4A5F8A;          /* 石板藍 */
  --secondary: #7E9191;         /* 鼠尾草綠 */
  --tertiary: #BAA88E;          /* 沙色 */
  --tertiary-container: #EEDFC9;
  --on-tertiary-container: #4A3D2C;
  --surface: #FCFAF5;           /* 暖米白 */
  --surface-variant: #F4EFE6;
  --on-surface: #1F1B17;
  --on-surface-variant: #5A5246;
  --outline: #A89E8E;
  --outline-variant: #D8CFBF;
  --error: #B54D4D;
  --max-width: 760px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --primary: #A8B8D3;
    --secondary: #B5C5C5;
    --tertiary: #E0C9A0;
    --tertiary-container: #4A3D2C;
    --on-tertiary-container: #EEDFC9;
    --surface: #201A18;
    --surface-variant: #2A2420;
    --on-surface: #ECE5DA;
    --on-surface-variant: #C0B7A8;
    --outline: #94897A;
    --outline-variant: #463E37;
    --error: #E3A5A5;
  }
}

* { box-sizing: border-box; }

html { font-size: 16px; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang TC", "Noto Sans TC",
               "Microsoft JhengHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--surface);
  color: var(--on-surface);
  line-height: 1.7;
  margin: 0;
  padding: 24px 16px 48px;
  min-height: 100vh;
}

main, body > * {
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
}

h1, h2, h3 {
  color: var(--primary);
  line-height: 1.3;
  margin-top: 1.8em;
  margin-bottom: 0.6em;
}

h1 { font-size: 1.8rem; border-bottom: 2px solid var(--outline-variant); padding-bottom: 0.3em; }

/* 隱私政策頂部更新日期：縮小、淺色、靠右、緊貼 h1 下方 */
.last-updated {
  text-align: right;
  font-size: 0.85rem;
  color: var(--on-surface-variant);
  margin: -0.4em 0 1.5em;
}
h2 { font-size: 1.4rem; }
h3 { font-size: 1.15rem; color: var(--secondary); }

p { margin: 0.8em 0; color: var(--on-surface); }

a { color: var(--primary); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--secondary); }

strong { color: var(--on-surface); font-weight: 600; }

hr {
  border: none;
  border-top: 1px solid var(--outline-variant);
  margin: 2em 0;
}

ul, ol { padding-left: 1.5em; }
li { margin: 0.3em 0; }

table {
  border-collapse: collapse;
  width: 100%;
  margin: 1em 0;
  background: var(--surface-variant);
  border-radius: 8px;
  overflow: hidden;
}
th, td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--outline-variant);
  text-align: left;
  vertical-align: top;
}
th {
  background: var(--tertiary-container);
  color: var(--on-tertiary-container);
  font-weight: 600;
}
tr:last-child td { border-bottom: none; }

code, pre {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  background: var(--surface-variant);
  border-radius: 4px;
}
code { padding: 1px 6px; font-size: 0.9em; }
pre { padding: 12px; overflow-x: auto; }
pre code { background: none; padding: 0; }

blockquote {
  margin: 1em 0;
  padding: 0.6em 1em;
  border-left: 4px solid var(--tertiary);
  background: var(--surface-variant);
  color: var(--on-surface-variant);
}

/* 頁尾連結 */
.site-footer {
  margin-top: 3em;
  padding-top: 1.5em;
  border-top: 1px solid var(--outline-variant);
  text-align: center;
  color: var(--on-surface-variant);
  font-size: 0.9rem;
}
.site-footer a { color: var(--on-surface-variant); margin: 0 8px; }
.email-obf {
  color: var(--on-surface-variant);
  user-select: text;          /* 雖然 obfuscated 仍允許使用者複製 */
  white-space: nowrap;
}

/* Landing 專用 */
.hero {
  text-align: center;
  padding: 48px 16px 32px;
}
.hero img.logo {
  width: 96px;
  height: 96px;
  border-radius: 24px;
  background: white;
  padding: 12px;
  box-shadow: 0 6px 20px rgba(74, 95, 138, 0.15);
}
.hero h1 {
  font-size: 2.2rem;
  margin: 0.5em 0 0.2em;
  border: none;
  padding: 0;
}
.hero .tagline {
  color: var(--on-surface-variant);
  font-size: 1.05rem;
  margin: 0.2em 0 0;
}
.cta {
  display: inline-block;
  margin: 1em 0.4em;
  padding: 10px 22px;
  background: var(--tertiary-container);
  color: var(--on-tertiary-container);
  border-radius: 24px;
  text-decoration: none;
  font-weight: 600;
  border: 1px solid var(--outline-variant);
  transition: transform 0.15s ease;
}
.cta:hover { transform: translateY(-1px); color: var(--on-tertiary-container); }