/* ============================================================
   案件线索墙 — Clue Card Styles
   老照片/胶带/图钉 装饰风格
   ============================================================ */

/* ── 卡片基础 ── */
.clue-card {
  position: absolute;
  width: var(--card-width);
  min-height: var(--card-min-height);
  background: var(--paper);
  border: 1px solid rgba(139, 90, 43, 0.25);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  padding-top: calc(var(--space-4) + 8px);
  cursor: grab;
  user-select: none;
  z-index: 2;
  transition:
    box-shadow var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);

  /* 老照片微微偏转 */
  transform: rotate(var(--card-rotate, 0deg));

  animation: cardEnter var(--duration-slow) var(--ease-out) both;
}

.clue-card:hover {
  z-index: 5;
  box-shadow: var(--shadow-lg);
}

.clue-card.dragging {
  cursor: grabbing;
  z-index: 100;
  box-shadow: var(--shadow-lg);
  transform: rotate(0deg) scale(1.05);
  opacity: 0.92;
}

/* ── 图钉装饰 ── */
.clue-card::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--pin-red);
  box-shadow:
    inset 0 -2px 3px rgba(0,0,0,0.3),
    inset 0 1px 1px rgba(255,255,255,0.3),
    var(--shadow-pin);
  z-index: 3;
  animation: pinBounce var(--duration-normal) var(--ease-out) both;
}

/* ── 卡片头部 ── */
.clue-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
  padding-bottom: var(--space-2);
  border-bottom: 1px dashed rgba(139, 90, 43, 0.2);
}

/* 类型图标 */
.clue-type-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.clue-source {
  font-family: var(--font-typewriter);
  font-size: var(--text-xs);
  color: var(--text-faint);
  letter-spacing: 0.02em;
}

/* ── 卡片标题 ── */
.clue-card-title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--ink);
  margin-bottom: var(--space-2);
  line-height: 1.4;
}

/* ── 卡片内容 ── */
.clue-card-content {
  font-size: var(--text-xs);
  line-height: 1.7;
  color: var(--text-soft);
}

/* ── 卡片标签 ── */
.clue-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-top: var(--space-3);
}

.clue-tag {
  display: inline-block;
  padding: 1px 6px;
  font-size: 10px;
  border-radius: 2px;
  font-family: var(--font-typewriter);
  letter-spacing: 0.03em;
}

/* 时间线标签 */
.clue-tag.timeline-1997 {
  background: rgba(74, 124, 143, 0.12);
  color: var(--timeline-1997);
  border: 1px solid rgba(74, 124, 143, 0.25);
}

.clue-tag.timeline-1998 {
  background: rgba(196, 69, 54, 0.10);
  color: var(--timeline-1998);
  border: 1px solid rgba(196, 69, 54, 0.2);
}

.clue-tag.timeline-2016 {
  background: rgba(122, 132, 80, 0.12);
  color: var(--timeline-2016);
  border: 1px solid rgba(122, 132, 80, 0.25);
}

/* ── 类型变体 ── */

/* 证词卡 — 打字机纸条风格 */
.clue-card[data-type="testimony"] {
  background: linear-gradient(180deg, rgba(255,253,245,0.95), rgba(250,245,230,0.92));
  border-left: 3px solid var(--type-testimony);
}
.clue-card[data-type="testimony"]::before {
  background: var(--pin-blue);
}
.clue-card[data-type="testimony"] .clue-card-content {
  font-family: var(--font-typewriter);
  font-style: italic;
}

/* 物证卡 — 照片/文件风格 */
.clue-card[data-type="evidence"] {
  background: linear-gradient(180deg, rgba(255,248,235,0.95), rgba(245,235,215,0.92));
  border-left: 3px solid var(--type-evidence);
}
.clue-card[data-type="evidence"]::before {
  background: var(--pin-red);
}

/* 时间线卡 — 便签条风格 */
.clue-card[data-type="timeline"] {
  background: linear-gradient(180deg, rgba(248,250,238,0.95), rgba(240,242,228,0.92));
  border-left: 3px solid var(--type-timeline);
  border-top: 5px solid var(--type-timeline);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}
.clue-card[data-type="timeline"]::before {
  background: var(--pin-green);
}

/* 地图卡 — 大幅展开 */
.clue-card[data-type="map"] {
  width: 300px;
  min-height: 200px;
  background: linear-gradient(180deg, rgba(252,248,238,0.95), rgba(240,232,210,0.92));
  border-left: 3px solid var(--type-map);
}
.clue-card[data-type="map"]::before {
  background: var(--pin-yellow);
}

/* ── 锁定态 ── */
.clue-card.locked {
  filter: grayscale(0.8) brightness(0.85);
  cursor: not-allowed;
  pointer-events: none;
}

.clue-card.locked .clue-card-content {
  filter: blur(4px);
}

/* ── 选中态（连线模式）── */
.clue-card.selected {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.clue-card.connect-source {
  outline: 2px dashed var(--yarn);
  outline-offset: 3px;
  animation: lockedShake 0.4s ease-in-out;
}

/* ── 重要度标识 ── */
.clue-card[data-importance="critical"]::after {
  content: "!";
  position: absolute;
  top: 8px;
  right: 8px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.clue-card[data-importance="red-herring"] {
  opacity: 0.85;
  border-style: dashed;
}

/* ── 胶带装饰（顶部）── */
.tape {
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%) rotate(var(--tape-angle, 0deg));
  width: 60px;
  height: 18px;
  background: rgba(255, 230, 150, 0.5);
  border: 1px solid rgba(200, 180, 100, 0.3);
  z-index: 4;
}