/* PurpleStar site – shared layout (matches main site stone/violet palette) */
* { box-sizing: border-box; }

:root {
  --font-sans: "PingFang TC", "Microsoft JhengHei", "Helvetica Neue", sans-serif;
  --color-bg: #fafaf9;      /* stone-50 */
  --color-card: #fff;
  --color-text: #1c1917;   /* stone-900 */
  --color-muted: #78716c;   /* stone-500 */
  --color-primary: #7c3aed; /* violet-600 */
  --color-primary-hover: #6d28d9; /* violet-700 */
  --color-border: #e7e5e4;  /* stone-200 */
  --max-content: 520px;
  --header-h: 56px;
}

body {
  font-family: var(--font-sans);
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.site-header {
  background: var(--color-card);
  border-bottom: 1px solid var(--color-border);
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header-inner {
  max-width: 960px;
  margin: 0 auto;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
  text-decoration: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.site-nav a {
  color: var(--color-muted);
  text-decoration: none;
  font-size: 0.95rem;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--color-primary);
}

.site-nav a.active { font-weight: 600; }

/* Main content */
.site-main {
  flex: 1;
  padding: 24px;
}

/* Footer */
.site-footer {
  background: var(--color-card);
  border-top: 1px solid var(--color-border);
  padding: 1rem 24px;
  margin-top: auto;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-muted);
}

.site-footer a { color: var(--color-primary); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }