/* 主题样式 */

:root {
  /* 明亮主题 */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #e9ecef;
  --text-primary: #212529;
  --text-secondary: #6c757d;
  --border-color: #dee2e6;
  --navbar-bg: #ffffff;
  --navbar-hover-bg: #e9ecef;
  --primary-color: #4361ee;
  --primary-hover: #3a56d4;
  --secondary-color: #6c757d;
  --secondary-hover: #5a6268;
  --success-color: #4cc9f0;
  --success-hover: #42b8d9;
  --danger-color: #f72585;
  --danger-hover: #e02177;
  --warning-color: #f8961e;
  --warning-hover: #e0871b;
  --info-color: #4895ef;
  --info-hover: #4186d9;
  --success-bg: #d1fae5;
  --success-text: #065f46;
  --success-border: #a7f3d0;
  --error-bg: #fee2e2;
  --error-text: #991b1b;
  --error-border: #fecaca;
  --info-bg: #dbeafe;
  --info-text: #1e40af;
  --info-border: #bfdbfe;
  --warning-bg: #fef3c7;
  --warning-text: #92400e;
  --warning-border: #fde68a;
  --table-row-hover: #f8f9fa;
  
  /* 轻量级背景色 */
  --success-light: #f0fdf4;
  --error-light: #fef2f2;
  
  /* 阴影和圆角 */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
}

/* 暗夜主题 */
[data-theme="dark"] {
  --bg-primary: #121212;
  --bg-secondary: #1e1e1e;
  --bg-tertiary: #2d2d2d;
  --text-primary: #e0e0e0;
  --text-secondary: #9e9e9e;
  --border-color: #444444;
  --navbar-bg: #1e1e1e;
  --navbar-hover-bg: #2d2d2d;
  --primary-color: #4361ee;
  --primary-hover: #5a77ff;
  --secondary-color: #747474;
  --secondary-hover: #8a8a8a;
  --success-color: #4cc9f0;
  --success-hover: #6dd6f3;
  --danger-color: #f72585;
  --danger-hover: #ff4fa3;
  --warning-color: #f8961e;
  --warning-hover: #ffa436;
  --info-color: #4895ef;
  --info-hover: #6ba6f2;
  --success-bg: #065f46;
  --success-text: #d1fae5;
  --success-border: #047857;
  --error-bg: #991b1b;
  --error-text: #fee2e2;
  --error-border: #7f1d1d;
  --info-bg: #1e40af;
  --info-text: #dbeafe;
  --info-border: #1e3a8a;
  --warning-bg: #92400e;
  --warning-text: #fef3c7;
  --warning-border: #92400e;
  --table-row-hover: #2a2a2a;
  
  /* 轻量级背景色 */
  --success-light: #064e3b;
  --error-light: #7f1d1d;
}

/* 主题切换按钮 */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: var(--border-radius-md);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.theme-toggle:hover {
  background-color: var(--navbar-hover-bg);
  box-shadow: var(--shadow-md);
}

/* 导航栏样式 */
.navbar {
  background-color: var(--navbar-bg);
  box-shadow: var(--shadow-md);
  padding: 12px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar-brand a {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

.navbar-brand a:hover {
  color: var(--primary-hover);
}

.navbar-menu {
  display: flex;
  gap: 20px;
}

.nav-item {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: var(--border-radius-sm);
  transition: all 0.3s ease;
}

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

.nav-item.active {
  background-color: var(--primary-color);
  color: white;
}

.navbar-user {
  display: flex;
  align-items: center;
  gap: 15px;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-info #username {
  font-weight: 500;
}

/* 页脚样式 */
.footer {
  background-color: var(--bg-tertiary);
  padding: 20px 0;
  margin-top: 40px;
  border-top: 1px solid var(--border-color);
}

.footer .container {
  text-align: center;
}

.footer p {
  margin: 0;
  color: var(--text-secondary);
}