/* ── 学生成长花园 Dashboard ── */

/* 学生信息区 */
.student-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem 0;
  margin-bottom: 1.5rem;
  position: relative;
}
.student-avatar {
  width: 64px; height: 64px;
  border-radius: 50%;
  border: 2px solid var(--color-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  background: var(--bg-card);
  flex-shrink: 0;
}
.student-info { flex: 1; }
.student-nickname {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 2px;
}
.student-meta {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}
.student-stats {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-top: 4px;
}
.student-tree {
  flex-shrink: 0;
  margin-left: auto;
  display: flex;
  align-items: center;
}

/* 成长小树容器 */
.growth-tree-svg {
  width: 100px; height: 120px;
  display: block;
}

/* 主体三栏布局 (桌面) */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}
.dashboard-full {
  grid-column: 1 / -1;
}
.dashboard-grid .radar-section,
.dashboard-grid .timeline-section {
  margin-bottom: 0;
}

/* 学习关联图 */
.link-graph-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-chart);
  padding: 1.5rem;
  transition: background var(--transition-slow);
}
.link-graph-wrapper svg {
  display: block;
  width: 100%;
  height: auto;
}

/* 移动端 Tab 切换 */
.mobile-garden-tabs {
  display: none;
  position: relative;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border-card);
}
.mobile-garden-tabs-inner {
  display: flex;
}
.mobile-garden-tab {
  flex: 1;
  padding: 10px 0;
  border: none;
  background: none;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  text-align: center;
  transition: color var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
}
.mobile-garden-tab.active { color: var(--color-brand); font-weight: 600; }
.mobile-garden-indicator {
  position: absolute;
  bottom: -2px;
  height: 3px;
  background: var(--color-brand);
  border-radius: 2px;
  transition: left var(--transition-fast), width var(--transition-fast);
}

/* 错误状态 */
.error-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-tertiary);
}
.error-state .error-icon { font-size: 2.5rem; margin-bottom: 0.5rem; }
.error-state .retry-btn {
  margin-top: 1rem;
  color: var(--color-brand);
  background: none;
  border: none;
  font-size: 0.875rem;
  cursor: pointer;
  font-weight: 500;
}

/* 响应式 */
@media (max-width: 1024px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .student-header { gap: 1rem; }
  .student-avatar { width: 48px; height: 48px; font-size: 1.5rem; }
  .student-nickname { font-size: 1.125rem; }
  .growth-tree-svg { width: 60px; height: 80px; }
  .mobile-garden-tabs { display: block; }
  .dashboard-grid .radar-section:not(.active),
  .dashboard-grid .timeline-section:not(.active),
  .dashboard-grid .link-graph-wrapper:not(.active) {
    display: none;
  }
  .dashboard-grid { gap: 1rem; }
}

/* ── 团队页面 (升级版) ── */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}
.member-card {
  background: var(--bg-card);
  border-radius: 14px;
  padding: 1.4rem;
  border: 1.5px solid var(--border-card);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast), background var(--transition-slow);
}
.member-card:hover {
  border-color: var(--color-blue);
  box-shadow: rgba(126, 184, 218, 0.12) 0 4px 16px;
  transform: translateY(-2px);
}
.member-card .head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.6rem;
}
.member-card .head .emoji { font-size: 1.8rem; }
.member-card .head .name { font-size: 1.05rem; font-weight: 700; }
.member-card .head .title {
  font-size: 0.72rem;
  color: var(--color-brand);
  background: var(--bg-page);
  padding: 0.1rem 0.5rem;
  border-radius: 6px;
  font-weight: 500;
}
.member-card .head .live-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--offline, #C4A882);
  margin-left: auto;
  flex-shrink: 0;
}
.member-card .head .live-dot.online {
  background: var(--color-green);
  box-shadow: 0 0 6px rgba(139, 184, 124, 0.4);
}
.member-card .bio {
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--text-primary);
  opacity: 0.85;
}
.member-card .quote {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  font-style: italic;
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-card);
}
.member-card .meta {
  font-size: 0.73rem;
  color: var(--text-tertiary);
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-card);
}

@media (max-width: 640px) {
  .team-grid { grid-template-columns: 1fr; }
}