/* ========================================
   table.css - 周期表布局样式
   ======================================== */

/* ── 周期表容器 ── */
.periodic-table-wrapper {
  max-width: 1520px;
  margin: 0 auto;
  overflow-x: auto;
  padding-bottom: 12px;
}

.periodic-table {
  display: grid;
  /* 18列 + 1列用于周期序号 */
  grid-template-columns: 28px repeat(18, 1fr);
  grid-template-rows: auto;
  gap: 3px;
  min-width: 860px;
}

/* ── 简化元素卡片 ── */
.el-card {
  position: relative;
  border-radius: 5px;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, filter .15s ease;
  text-align: center;
  user-select: none;
  border: 1px solid transparent;
  overflow: hidden;
}

/* 简化视图尺寸 */
.el-card.simple {
  padding: 5px 2px 4px;
  min-height: 52px;
}

.el-card.simple .el-z {
  font-size: 9px;
  color: rgba(255,255,255,.5);
  line-height: 1;
  display: block;
}
.el-card.simple .el-symbol {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.2;
  display: block;
  color: #fff;
}
.el-card.simple .el-name {
  font-size: 9px;
  color: rgba(255,255,255,.7);
  line-height: 1;
  display: block;
}

/* ── 完整视图尺寸 ── */
.periodic-table.pt-full {
  gap: 2px;
}

.el-card.full {
  padding: 4px 2px 3px;
  min-height: 70px;
}
.el-card.full .el-z {
  font-size: 8px;
  color: rgba(255,255,255,.5);
  line-height: 1;
  display: block;
}
.el-card.full .el-symbol {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.2;
  display: block;
  color: #fff;
}
.el-card.full .el-name {
  font-size: 8px;
  color: rgba(255,255,255,.7);
  line-height: 1.1;
  display: block;
}
.el-card.full .el-mass {
  font-size: 7.5px;
  color: rgba(255,255,255,.55);
  line-height: 1.2;
  display: block;
  margin-top: 1px;
}
.el-card.full .el-config {
  font-size: 7px;
  color: rgba(255,255,255,.45);
  line-height: 1.1;
  display: block;
}
.el-card.full .el-state {
  position: absolute;
  bottom: 2px;
  right: 3px;
  font-size: 7px;
  font-weight: 700;
  padding: 1px 3px;
  border-radius: 2px;
}
.el-card.full .state-s { background:rgba(255,255,255,.15); color:rgba(255,255,255,.7); }
.el-card.full .state-l { background:rgba(0,120,200,.5); color:#fff; }
.el-card.full .state-g { background:rgba(0,180,60,.3); color:#7fff7f; }
.el-card.full .state-m { background:rgba(255,180,0,.3); color:#ffc107; }

/* 放射性角标 */
.el-card .radio-flag {
  position: absolute;
  top: 2px;
  right: 3px;
  font-size: 8px;
  color: #f85149;
}

/* ── 元素类别背景色 ── */
.cat-alkali-metal    { background: linear-gradient(135deg, #c0392b, #e74c3c); }
.cat-alkaline-earth  { background: linear-gradient(135deg, #d35400, #e67e22); }
.cat-transition      { background: linear-gradient(135deg, #1a5276, #3498db); }
.cat-post-transition { background: linear-gradient(135deg, #1a6b3a, #2ecc71); }
.cat-metalloid       { background: linear-gradient(135deg, #117a65, #1abc9c); }
.cat-nonmetal        { background: linear-gradient(135deg, #6c3483, #9b59b6); }
.cat-halogen         { background: linear-gradient(135deg, #b7770d, #f39c12); }
.cat-noble-gas       { background: linear-gradient(135deg, #922b6e, #e91e8c); }
.cat-lanthanide      { background: linear-gradient(135deg, #006064, #00bcd4); }
.cat-actinide        { background: linear-gradient(135deg, #bf360c, #ff5722); }

.el-card:hover {
  transform: scale(1.12) translateZ(0);
  z-index: 10;
  box-shadow: 0 6px 24px rgba(0,0,0,.6);
  border-color: rgba(255,255,255,.4);
  filter: brightness(1.15);
}
.el-card:active { transform: scale(1.06); }

/* ── 周期序号标签 ── */
.period-label {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
}

/* ── 族序号行 ── */
.group-row {
  display: contents;
}
.group-label {
  text-align: center;
  color: var(--text-muted);
  font-size: 10px;
  padding: 2px 0;
}

/* ── 空白占位 ── */
.el-empty {
  /* 空白格，不显示 */
}

/* ── 镧系/锕系分隔区 ── */
.lanthanide-row,
.actinide-row {
  max-width: 1520px;
  margin: 10px auto 0;
  display: grid;
  grid-template-columns: 100px repeat(15, 1fr);
  gap: 3px;
  padding: 0 0 0 calc(28px + 3px + (2 * (100%/19)));
}

.series-label {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 8px;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

/* ── 悬停高亮同类 ── */
.el-card.dim {
  filter: brightness(0.35) saturate(0.4);
  transform: scale(1) !important;
}

/* ── 选中状态 ── */
.el-card.selected {
  box-shadow: 0 0 0 2px #fff, 0 0 16px rgba(255,255,255,.4);
  z-index: 5;
}

/* ── 信息卡浮层（简化/完整视图右侧信息展示） ── */
.info-panel {
  position: fixed;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  width: 240px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  z-index: 100;
  display: none;
  box-shadow: 0 8px 32px rgba(0,0,0,.5);
}

/* ========================================
   移动端响应式 (≤768px)
   ======================================== */
@media (max-width: 768px) {
  .periodic-table-wrapper {
    max-width: 100%;
    padding-bottom: 16px;
  }

  /* 略微增大卡片触控区域 */
  .el-card.simple {
    min-height: 56px;
    padding: 6px 2px 5px;
  }
  .el-card.simple .el-symbol { font-size: 17px; }
  .el-card.simple .el-name  { font-size: 10px; }

  .el-card.full {
    min-height: 74px;
    padding: 5px 2px 4px;
  }
  .el-card.full .el-symbol { font-size: 16px; }
  .el-card.full .el-name   { font-size: 9px; }
  .el-card.full .el-mass   { font-size: 8px; }
  .el-card.full .el-config { font-size: 7.5px; }

  /* 信息面板在移动端改为底部抽屉 */
  .info-panel {
    position: fixed;
    right: auto;
    left: 8px;
    bottom: 8px;
    top: auto;
    transform: none;
    width: calc(100% - 16px);
    max-height: 50vh;
    overflow-y: auto;
    border-radius: 12px;
    padding: 14px;
    font-size: 13px;
  }

  /* 镧系/锕系行 */
  .lanthanide-row,
  .actinide-row {
    max-width: 100%;
    grid-template-columns: 80px repeat(15, 1fr);
    padding-left: calc(28px + 3px);
    gap: 2px;
  }
  .series-label { font-size: 10px; padding-right: 4px; }
}

/* ========================================
   小屏手机 (≤480px)
   ======================================== */
@media (max-width: 480px) {
  .periodic-table {
    grid-template-columns: 22px repeat(18, 1fr);
    gap: 2px;
    min-width: 720px;
  }

  .el-card.simple {
    min-height: 50px;
    padding: 4px 1px 3px;
  }
  .el-card.simple .el-z      { font-size: 8px; }
  .el-card.simple .el-symbol { font-size: 15px; }
  .el-card.simple .el-name   { font-size: 8px; }

  .el-card.full {
    min-height: 64px;
    padding: 3px 1px;
  }
  .el-card.full .el-z      { font-size: 7px; }
  .el-card.full .el-symbol { font-size: 14px; }
  .el-card.full .el-name   { font-size: 7.5px; }
  .el-card.full .el-mass   { font-size: 7px; }
  .el-card.full .el-config { font-size: 6px; display: none; }

  .period-label { font-size: 9px; }
  .group-label  { font-size: 8px; }

  .lanthanide-row,
  .actinide-row {
    grid-template-columns: 60px repeat(15, 1fr);
    gap: 2px;
    padding-left: calc(22px + 2px);
  }
}