/* Design tokens 與作業一 redesign.html 相同，M2 再搬入其餘元件樣式 */
:root {
  --blue: #1E5AA8;
  --blue-l: #E8F0FB;
  --ink: #0F1E33;
  --ink2: #41526A;
  --mute: #6B7A90;
  --line: #DDE4EE;
  --bg: #F3F6FA;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
}

.site-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
}

.tag {
  padding: 2px 10px;
  border-radius: 13px;
  background: var(--blue-l);
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
}

.tools {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
  color: var(--ink2);
}

.tools a,
.btn-text {
  border: 0;
  background: none;
  color: var(--blue);
  font: inherit;
  cursor: pointer;
}

.site-main {
  flex: 1;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 24px;
}

.stack {
  max-width: 360px;
}

.btn {
  height: 50px;
  padding: 0 26px;
  border: 0;
  border-radius: 10px;
  background: var(--blue);
  color: #fff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.site-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--line);
  background: #fff;
  color: var(--mute);
  font-size: 14px;
  text-align: center;
}