/*
 * 公開行銷頁 (首頁、會員方案) 共用樣式, 需搭配 template/_site.html.
 *
 * 色彩與字型沿用 modernist.css 的 token; 行銷頁追求圓滑、有層次的高級
 * 質感, 因此只在 body.site 範圍內加上圓角、柔光與漸層, 登入後的交易
 * 頁面維持原本方正、資訊密集的 Modernist 風格, 兩者互不影響.
 */
.site {
  --site-radius-sm: 10px;
  --site-radius-md: 16px;
  --site-radius-lg: 24px;
  --site-radius-pill: 999px;
  --site-border: color-mix(in srgb, var(--color-text) 12%, transparent);
  --site-border-strong: color-mix(in srgb, var(--color-text) 22%, transparent);
  --site-panel: color-mix(in srgb, var(--color-surface) 55%, var(--color-bg));
  --site-panel-strong: color-mix(in srgb, var(--color-surface) 85%, var(--color-bg));
  --site-glow: color-mix(in srgb, var(--color-accent) 16%, transparent);
  --site-shadow: 0 18px 48px color-mix(in srgb, #000000 38%, transparent);
  --site-ease: cubic-bezier(0.22, 1, 0.36, 1);

  min-height: 100vh;
  background:
    radial-gradient(900px 520px at 85% -8%, var(--site-glow), transparent 70%),
    radial-gradient(700px 480px at -10% 30%, color-mix(in srgb, var(--color-accent-600) 10%, transparent), transparent 70%),
    var(--color-bg);
}

.site-container { width: 100%; max-width: 1180px; margin: 0 auto; padding-inline: var(--page-gutter); }

.site-brand {
  display: block; font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 18px; letter-spacing: 0.06em; color: var(--color-text); text-decoration: none;
}
/* 頂部列品牌標誌: 透明底向量圖, 只需限制高度並保持原比例 */
.site-brand-logo { height: 36px; width: auto; }

/* 強調字: 珊瑚色漸層字, 比單色更有光澤感 */
.site-accent {
  background: linear-gradient(120deg, var(--color-accent-200), var(--color-accent) 45%, var(--color-accent-500));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* - 按鈕: 行銷頁使用膠囊造型與柔光陰影 - */
.site .btn {
  border-radius: var(--site-radius-pill);
  transition: transform 0.25s var(--site-ease), box-shadow 0.25s var(--site-ease), background-color 0.25s ease;
}
.site .btn-sm { padding: 6px 16px; }
.site .btn-lg { padding: 14px 28px; }
.site .btn-primary {
  background: linear-gradient(135deg, var(--color-accent-300), var(--color-accent) 50%, var(--color-accent-500));
  box-shadow: 0 8px 24px color-mix(in srgb, var(--color-accent) 28%, transparent);
}
.site .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 32px color-mix(in srgb, var(--color-accent) 38%, transparent); }
.site .btn-secondary { border-color: var(--site-border-strong); background: color-mix(in srgb, var(--color-text) 4%, transparent); }
.site .btn-secondary:hover { transform: translateY(-2px); background: color-mix(in srgb, var(--color-text) 10%, transparent); }

/* - 頂部列: 半透明毛玻璃, 捲動時仍看得到下方內容的層次 - */
.site-topbar {
  position: sticky; top: 0; z-index: 30;
  background: color-mix(in srgb, var(--color-bg) 72%, transparent);
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--site-border);
}
.site-topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); min-height: 64px; }
.site-topbar-nav { display: flex; align-items: center; gap: var(--space-2); }
.site-topbar-link {
  padding: 6px 14px; font-size: 14px; color: color-mix(in srgb, var(--color-text) 80%, transparent);
  text-decoration: none; border-radius: var(--site-radius-pill); transition: background-color 0.2s ease, color 0.2s ease;
}
.site-topbar-link:hover { color: var(--color-text); background: color-mix(in srgb, var(--color-text) 8%, transparent); }
.site-topbar-link.active { color: var(--color-accent-300); background: color-mix(in srgb, var(--color-accent) 12%, transparent); }
.site-topbar-nav .btn { margin-left: var(--space-2); }

/* - 區塊標題 - */
.site-section { padding-block: 96px; }
.site-section-head { max-width: 720px; margin-bottom: 48px; }
.site-section-head.is-center { margin-inline: auto; text-align: center; }
.site-section-head h2 { margin: 0; font-size: 36px; }
.site-section-head p { margin: var(--space-3) 0 0; color: color-mix(in srgb, var(--color-text) 70%, transparent); }

/* - 頁尾 - */
.site-footer { border-top: 1px solid var(--site-border); }
.site-footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-3); padding-block: 28px; }

@media (prefers-reduced-motion: reduce) {
  .site *, .site *::before, .site *::after { transition: none !important; animation: none !important; }
}

@media (max-width: 1023.98px) {
  .site-section { padding-block: 72px; }
  .site-section-head { margin-bottom: 36px; }
  .site-section-head h2 { font-size: 30px; }
}

@media (max-width: 639.98px) {
  .site-topbar-inner { min-height: 56px; }
  .site-brand-logo { height: 26px; }
  .site-topbar-link:not(.site-topbar-link-keep) { display: none; }
  .site-topbar-link { padding-inline: 10px; }
  .site-topbar-nav { gap: 0; }
  .site-section { padding-block: 52px; }
  .site-section-head { margin-bottom: 28px; }
  .site-section-head h2 { font-size: 24px; }
}