/* WordDrip 注入样式：替换词 + 悬停卡片 */

.worddrip-word {
  cursor: help;
  font-style: normal;
  font-weight: 600;
  border-radius: 4px;
  padding: 0 4px;
  /* 自带不透明浅色块 + 深色文字，不依赖网页背景，白底/黑底都清晰 */
  background-color: #eef2ff;
  color: #4338ca;
  border-bottom: 2px solid #6366f1;
  transition: filter .15s ease;
  white-space: nowrap;
}
.worddrip-word:hover {
  filter: brightness(0.95);
}

/* 状态区分：各自一套“浅色块 + 深色字”，与网页明暗无关 */
.worddrip-word[data-status="new"]      { color: #4338ca; background-color: #eef2ff; border-bottom-color: #6366f1; }
.worddrip-word[data-status="learning"] { color: #b45309; background-color: #fef0d6; border-bottom-color: #f59e0b; }
.worddrip-word[data-status="review"]   { color: #0e7490; background-color: #d9f6fb; border-bottom-color: #06b6d4; }
.worddrip-word[data-status="mastered"] { color: #15803d; background-color: #dcfce7; border-bottom-color: #22c55e; font-weight: 500; }

.worddrip-word.fw-rated {
  animation: fwPulse .6s ease;
}
@keyframes fwPulse {
  0%   { background-color: rgba(34, 197, 94, .4); }
  100% { background-color: transparent; }
}

/* ---------- 悬停卡片 ---------- */
.worddrip-panel {
  position: absolute;
  z-index: 2147483647;
  width: 320px;
  max-width: 92vw;
  background: #ffffff;
  color: #1f2937;
  border: 1px solid #e5e7eb;
  border-radius: 14px;
  box-shadow: 0 12px 40px rgba(15, 23, 42, .18), 0 2px 8px rgba(15, 23, 42, .08);
  padding: 14px 16px 10px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.55;
  opacity: 0;
  transform: translateY(-4px);
  pointer-events: none;
  transition: opacity .14s ease, transform .14s ease;
  box-sizing: border-box;
}
.worddrip-panel[data-show="true"] {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.worddrip-panel * { box-sizing: border-box; }

.worddrip-panel .fw-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}
.worddrip-panel .fw-word-line {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}
.worddrip-panel .fw-en {
  font-size: 21px;
  font-weight: 700;
  color: #4338ca;
  letter-spacing: .2px;
}
.worddrip-panel .fw-ipa {
  font-size: 13px;
  color: #6b7280;
  font-style: italic;
}
.worddrip-panel .fw-speak {
  background: #eef2ff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  padding: 1px 6px;
  line-height: 1.4;
}
.worddrip-panel .fw-speak:hover { background: #e0e7ff; }

.worddrip-panel .fw-badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  white-space: nowrap;
  font-weight: 600;
  flex-shrink: 0;
}
.worddrip-panel .fw-new      { background: #eef2ff; color: #4f46e5; }
.worddrip-panel .fw-learning { background: #fef3c7; color: #b45309; }
.worddrip-panel .fw-review   { background: #cffafe; color: #0e7490; }
.worddrip-panel .fw-mastered { background: #dcfce7; color: #15803d; }

.worddrip-panel .fw-zh {
  margin-top: 6px;
  font-size: 15px;
  color: #111827;
  font-weight: 500;
}
.worddrip-panel .fw-pos {
  display: inline-block;
  font-size: 11px;
  color: #9ca3af;
  margin-right: 6px;
  font-style: italic;
}

.worddrip-panel .fw-root {
  margin-top: 8px;
  background: #f8fafc;
  border-left: 3px solid #a5b4fc;
  border-radius: 0 6px 6px 0;
  padding: 6px 10px;
  font-size: 12.5px;
  color: #475569;
  line-height: 1.5;
}
.worddrip-panel .fw-root-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  color: #6366f1;
  background: #e0e7ff;
  border-radius: 4px;
  padding: 0 5px;
  margin-right: 6px;
  vertical-align: 1px;
}

.worddrip-panel .fw-ex {
  margin-top: 8px;
  font-size: 12.5px;
}
.worddrip-panel .fw-ex-en { color: #374151; }
.worddrip-panel .fw-ex-zh { color: #9ca3af; margin-top: 1px; }

.worddrip-panel .fw-meta {
  margin-top: 8px;
  font-size: 11px;
  color: #9ca3af;
}

.worddrip-panel .fw-actions {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  margin-top: 10px;
}
.worddrip-panel .fw-btn {
  border: none;
  border-radius: 8px;
  padding: 7px 0;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  color: #fff;
  transition: filter .12s ease, transform .08s ease;
  font-family: inherit;
}
.worddrip-panel .fw-btn:hover { filter: brightness(1.06); }
.worddrip-panel .fw-btn:active { transform: scale(.96); }
.worddrip-panel .fw-again { background: #ef4444; }
.worddrip-panel .fw-hard  { background: #f59e0b; }
.worddrip-panel .fw-good  { background: #10b981; }
.worddrip-panel .fw-easy  { background: #6366f1; }

.worddrip-panel .fw-foot {
  margin-top: 9px;
  text-align: center;
  font-size: 10px;
  color: #cbd5e1;
  letter-spacing: .3px;
}

/* 深色模式适配 */
@media (prefers-color-scheme: dark) {
  /* 替换词不跟随系统深浅（它嵌在网页里，由网页背景决定）——只让浮层卡片适配深色 */
  .worddrip-panel {
    background: #1e293b;
    color: #e2e8f0;
    border-color: #334155;
  }
  .worddrip-panel .fw-en { color: #a5b4fc; }
  .worddrip-panel .fw-zh { color: #f1f5f9; }
  .worddrip-panel .fw-root { background: #0f172a; color: #cbd5e1; border-left-color: #6366f1; }
  .worddrip-panel .fw-ex-en { color: #cbd5e1; }
  .worddrip-panel .fw-speak { background: #334155; }
  .worddrip-panel .fw-speak:hover { background: #475569; }
}