/* ==============================================================================
   十月飛雲 (twots.top) - AEMS 統一稽核及證據服務 (audit.twots.top)
   組件樣式 - 雜湊鏈圖表、區塊節點卡片、雙人覆核工作台、SPV 證明器
   ============================================================================== */

/* 卡片基底 */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s, background-color 0.3s, border-color 0.3s;
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* 狀態指標卡 (Stat Card) */
.stat-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-primary);
  font-family: monospace;
}

.stat-label {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* 雜湊字串顯示 (Hash Box) */
.hash-box {
  background-color: var(--code-bg);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 6px 10px;
  font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.82rem;
  word-break: break-all;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.hash-text {
  color: var(--text-primary);
}

.copy-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  transition: color 0.2s;
}

.copy-btn:hover {
  color: var(--accent-primary);
}

/* 即時雜湊鏈視覺化 (Hash Chain Flow) */
.chain-timeline {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: relative;
  padding-left: 2rem;
  margin: 1.5rem 0;
}

.chain-timeline::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background-color: var(--border-color);
}

.chain-node-item {
  position: relative;
}

.chain-node-dot {
  position: absolute;
  left: -2rem;
  top: 14px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: var(--accent-primary);
  border: 4px solid var(--bg-primary);
  box-shadow: 0 0 0 2px var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.chain-node-dot.verified {
  background-color: var(--success);
  box-shadow: 0 0 0 2px var(--success);
}

.chain-node-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.chain-node-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.chain-seq-tag {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--accent-primary);
  font-family: monospace;
}

/* 表格樣式 */
.table-responsive {
  overflow-x: auto;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.audit-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.audit-table th {
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  font-weight: 600;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
}

.audit-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
}

.audit-table tr:hover td {
  background-color: var(--bg-secondary);
}

/* 雙人覆核工作台工作卡片 */
.dual-review-panel {
  border-left: 4px solid var(--warning);
  background-color: var(--bg-secondary);
  padding: 1.25rem;
  border-radius: 0 8px 8px 0;
  margin-bottom: 1.5rem;
}

/* 互動彈窗 (Modal) */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.6);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-overlay.active {
  display: flex;
}

.modal-content {
  background-color: var(--bg-card);
  border-radius: 12px;
  width: 100%;
  max-width: 650px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1rem;
  margin-bottom: 1.25rem;
}

.close-modal-btn {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--text-secondary);
  cursor: pointer;
}