/* ============================================================
   Ztor — Card
   Q3 2026-07-13：預設卡＝1px 純邊框（平、乾淨）。只有可點/浮起的強調卡
   （.ztor-card--clickable、selection-card）hover 時才升級純陰影。
   ============================================================ */

.ztor-card {
  --card-pad: var(--sp-24);

  display: flex;
  flex-direction: column;
  gap: var(--sp-12);

  padding: var(--card-pad);
  background: var(--card);
  color: var(--foreground);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);   /* 卡片級圓角放大 6→16（示範，2026-07-17）：與 form-section--outlined 統一 */

  transition: box-shadow var(--duration) var(--easing),
              transform  var(--duration) var(--easing);
}

.ztor-card--clickable:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

.ztor-card--clickable:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

.ztor-card__title {
  font-family: var(--font-display);
  font-size: var(--fs-18);
  font-weight: var(--fw-regular);
  line-height: var(--lh-snug);
  color: var(--foreground);
  margin: 0;
}

.ztor-card__meta {
  font-family: var(--font-body);
  font-size: var(--fs-13);
  color: var(--muted-foreground);
  margin: 0;
}

.ztor-card__body {
  font-family: var(--font-body);
  font-size: var(--fs-14);
  line-height: var(--lh-relaxed);
  color: var(--foreground-muted);
  margin: 0;
}

/* Muted variant — alternative card bg */
.ztor-card--muted {
  background: var(--muted);
}

/* Dashboard-frame variant — used to wrap product mockups */
.ztor-card--frame {
  padding: 0;
  overflow: hidden;
  border-radius: var(--radius-xl);
}

@media (prefers-reduced-motion: reduce) {
  .ztor-card,
  .ztor-card--clickable:hover { transition: none; transform: none; }
}

/* ============================================================
   Card (project namespace) — section wrapper used across product pages
   API differs from .ztor-card: head/title/link/hint composition for
   "section card" pattern (KPI rows, Recent earnings, Alerts panel,
   Earnings sub-sections, etc.). Both namespaces coexist:
   .ztor-card = canonical design-system reference (docs)
   .card      = product-page usage (head + body composition)
   ============================================================ */
.card {
  --card-pad: var(--sp-20);

  background: var(--card);
  border: 0;   /* 2026-07-26（Q23 裁決 C）：改用陰影浮起，取代 Q3 2026-07-13 的純邊框，統一到 form-section--outlined 已用的 Q14/Q18 處理 */
  border-radius: var(--radius-xl);
  padding: var(--card-pad);
  box-shadow: var(--shadow-card), var(--shadow-edge-top);
}
.card--muted { background: var(--muted); }
.card__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--sp-12);
  margin-bottom: var(--sp-14);
}
.card__title {
  font-family: var(--font-display);
  font-size: var(--fs-18);
  font-weight: var(--fw-regular);
  margin: 0;
}
/* Title-side icon slot — mirrors chart-card__title-group/-icon (chart.css)
   so a section card can lead its title with a small glyph the same way a
   chart-card does; card__head's title-slot/link-slot space-between layout
   is unaffected (title-group is just one flex child, same as a bare title
   was before). Neutral by default; color modifiers name a semantic accent
   (one card's icon may take --primary — the page's single spotlight, per
   DESIGN.md's "orange on ≤10% of a screen" rule — never more than one). */
.card__title-group {
  display: flex;
  align-items: center;
  gap: var(--sp-8);
  min-width: 0;
}
.card__title-icon {
  display: inline-flex;
  flex-shrink: 0;
  color: var(--muted-foreground);
}
.card__title-icon .ztor-icon { width: 16px; height: 16px; }
.card__title-icon--primary { color: var(--primary); }
.card__title-icon--warning { color: var(--status-warning-ink); }
.card__title-icon--info    { color: var(--status-info); }
.card__title-icon--accent  { color: var(--status-accent); }
.card__title-icon--success { color: var(--status-success); }
.card__hint { font-size: var(--fs-12); color: var(--muted-foreground); }
.card__link {
  font-family: var(--font-ui);
  font-size: var(--fs-12);
  font-weight: var(--fw-regular);
  color: var(--foreground-muted);
  border-bottom: 1px solid var(--border);
  padding-bottom: 1px;
  text-decoration: none;
}
/* Accent variant (2026-07-28 使用者裁示). For a link that OFFERS something
   rather than navigating inside the current context — the 粉絲 pages' 系統說明
   entry, sitting in an actions row beside Save and Discard. As a button it
   carried the same visual authority as the page's real actions, which is the
   wrong hierarchy for an explainer; accent + underline says "this is here if
   you want it" without competing. The underline stays because it is the
   textual affordance this system already uses for links. */
.card__link--accent {
  align-self: center;
  font-size: var(--fs-13);
  color: var(--primary);
  border-bottom-color: color-mix(in srgb, var(--primary) 40%, transparent);
  transition-property: color, border-bottom-color;
  transition-duration: var(--duration);
  transition-timing-function: var(--easing);
}
.card__link--accent:hover { border-bottom-color: var(--primary); }
.card__link--accent:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }
@media (prefers-reduced-motion: reduce) { .card__link--accent { transition-duration: 1ms; } }

/* Title-side variant of .card__link (inside .card__head): no underline + a
   trailing chevron-right icon (Tabler path, rendered via mask + currentColor
   so it tracks link color & hover). Scope is .card__head only — breadcrumbs,
   row-level edit/manage links and inline body links keep the canonical
   underline as a textual affordance. */
.card__head .card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  border-bottom: 0;
  padding-bottom: 0;
}
.card__head .card__link::after {
  content: "";
  display: inline-block;
  width: 14px;
  height: 14px;
  background: currentColor;
  -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><polyline points='9 18 15 12 9 6'/></svg>") center/contain no-repeat;
          mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><polyline points='9 18 15 12 9 6'/></svg>") center/contain no-repeat;
  flex-shrink: 0;
}
.card__head .card__link:hover { color: var(--foreground); }