/* 橡胶大事记 —— 卡片视图
 * 通过 _config.butterfly.yml inject 注入全站，仅在 .rc-cards 存在时生效
 */

.rc-cards {
  --rc-bg: #ffffff;
  --rc-bg-soft: #f7f8fa;
  --rc-border: #e5e8ec;
  --rc-border-hover: #cfd5dd;
  --rc-text: #1b1f24;
  --rc-text-2: #5b6470;
  --rc-text-3: #8b949e;
  --rc-accent: #14532d;
  --rc-accent-soft: #e8f6ed;
  --rc-appendix: #8a5a00;
  --rc-appendix-soft: #fdf4e3;
  --rc-shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 2px 8px rgba(16, 24, 40, 0.05);
  --rc-shadow-hover: 0 2px 4px rgba(16, 24, 40, 0.06), 0 12px 28px rgba(16, 24, 40, 0.12);
}

html[data-theme="dark"] .rc-cards {
  --rc-bg: #161b22;
  --rc-bg-soft: #1c222b;
  --rc-border: #262d38;
  --rc-border-hover: #3a4553;
  --rc-text: #e6edf3;
  --rc-text-2: #a7b1bd;
  --rc-text-3: #7d8794;
  --rc-accent: #7ee2a8;
  --rc-accent-soft: #16301f;
  --rc-appendix: #e5b567;
  --rc-appendix-soft: #33260e;
  --rc-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  --rc-shadow-hover: 0 12px 28px rgba(0, 0, 0, 0.45);
}

/* ---------- 容器 ---------- */
.rc-wrap {
  margin: 0.5rem 0 1.5rem;
}

.rc-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.rc-count {
  font-size: 0.86rem;
  color: var(--rc-text-2);
  margin-right: auto;
}
.rc-count b {
  color: var(--rc-accent);
  font-weight: 600;
}

.rc-filter {
  appearance: none;
  border: 1px solid var(--rc-border);
  background: var(--rc-bg);
  color: var(--rc-text);
  border-radius: 8px;
  padding: 0.32rem 2rem 0.32rem 0.7rem;
  font-size: 0.86rem;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23888' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.6rem center;
  transition: border-color 0.16s;
}
.rc-filter:hover {
  border-color: var(--rc-border-hover);
}
.rc-filter:focus {
  outline: none;
  border-color: var(--rc-accent);
}

/* ---------- 网格 ---------- */
.rc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 0.75rem;
}

/* ---------- 卡片 ---------- */
.rc-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--rc-bg);
  border: 1px solid var(--rc-border);
  border-radius: 12px;
  padding: 0.8rem 0.85rem 0.8rem;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--rc-shadow);
  transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease;
  overflow: hidden;
  min-height: 150px;
}
.rc-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--rc-accent);
  opacity: 0.55;
  transition: opacity 0.16s;
}
.rc-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--rc-shadow-hover);
  border-color: var(--rc-border-hover);
}
.rc-card:hover::before {
  opacity: 1;
}
.rc-card.rc-appendix::before {
  background: var(--rc-appendix);
}

/* 章节序号徽标 */
.rc-badge {
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.4;
  padding: 0.1rem 0.45rem;
  border-radius: 6px;
  background: var(--rc-accent-soft);
  color: var(--rc-accent);
  margin-bottom: 0.5rem;
  font-variant-numeric: tabular-nums;
}
.rc-card.rc-appendix .rc-badge {
  background: var(--rc-appendix-soft);
  color: var(--rc-appendix);
}

/* 卡片标题 */
.rc-title {
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--rc-text);
  margin: 0 0 0.4rem;
}

/* 摘要 */
.rc-abstract {
  font-size: 0.8rem;
  line-height: 1.62;
  color: var(--rc-text-2);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 章节归属（页脚） */
.rc-foot {
  margin-top: auto;
  padding-top: 0.55rem;
  font-size: 0.72rem;
  color: var(--rc-text-3);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  border-top: 1px dashed var(--rc-border);
}
.rc-foot i {
  font-size: 0.7rem;
  opacity: 0.7;
}

/* ---------- 加载 / 空态 ---------- */
.rc-loading,
.rc-empty {
  padding: 2rem 0;
  text-align: center;
  color: var(--rc-text-3);
  font-size: 0.88rem;
}

/* 原列表在卡片模式下隐藏（class 由 JS 加在 #category 上） */
#category.rc-hide-sort .article-sort {
  display: none;
}

/* ---------- 移动端 ---------- */
@media (max-width: 768px) {
  .rc-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 0.6rem;
  }
  .rc-card {
    min-height: 112px;
    padding: 0.7rem 0.75rem;
  }
  .rc-title {
    font-size: 0.88rem;
  }
  .rc-abstract {
    -webkit-line-clamp: 2;
    font-size: 0.76rem;
  }
  .rc-toolbar {
    gap: 0.4rem;
  }
  .rc-count {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .rc-grid {
    grid-template-columns: 1fr;
  }
}