/* === 全局布局 === */
#app-layout {
  display: flex;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
}

/* --- 侧边栏 --- */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.sidebar-header {
  padding: 16px 16px 12px;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-brand {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}

.sidebar-nav {
  padding: 8px 0;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  margin: 2px 8px;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  font-size: 13px;
  white-space: nowrap;
}

.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--color-primary-dim);
  color: var(--color-primary);
  font-weight: 500;
}

.nav-item.active svg {
  fill: var(--color-primary);
}

.nav-item svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* --- 主内容区 --- */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg-page);
}

.topbar {
  height: var(--header-height);
  min-height: var(--header-height);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  background: var(--bg-sidebar);
}

.sidebar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.topbar-date {
  display: flex;
  align-items: center;
}

.date-select {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  height: 36px;
  line-height: 36px;
  padding: 0 12px;
  font-size: 12px;
  cursor: pointer;
  outline: none;
  transition: var(--transition);
}

.date-select:hover {
  border-color: var(--color-primary);
}

.date-select:focus {
  border-color: var(--color-primary);
  color: var(--text-primary);
}

.btn-refresh {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.btn-refresh:hover {
  background: var(--bg-hover);
  stroke: var(--text-primary);
}

.topbar-user {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.topbar-user:hover {
  background: var(--bg-hover);
}

.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
}

.user-name {
  font-size: 13px;
  color: var(--text-primary);
}

/* --- 内容区域 --- */
.content-area {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

/* --- 底部 Footer --- */
.footer {
  height: 36px;
  min-height: 36px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  background: var(--bg-sidebar);
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

/* --- 模块引导提示 --- */
.module-guide {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 12px 20px;
  margin-bottom: 20px;
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.module-guide-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 16px;
  padding: 2px 6px;
  border-radius: 3px;
  transition: var(--transition);
}

.module-guide-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* --- 图表容器 --- */
.chart-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 16px;
}

.chart-container canvas {
  display: block;
  width: 100% !important;
  height: auto !important;
}