/* ==================== Global Styles ==================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Color System */
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --secondary-color: #64748b;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --info-color: #3b82f6;

  /* Background Color */
  --bg-color: #f8fafc;
  --card-bg: #ffffff;

  /* Text Color */
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;

  /* Border and Shadow */
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;

  /* Border Radius */
  --radius-sm: 4px;
  --radius: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Animation */
  --transition: all 0.2s ease;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ==================== Page Switching ==================== */
.page {
  display: none;
  min-height: 100vh;
}

.page.active {
  display: block;
}

/* ==================== Login Page ==================== */
#loginPage,
#registerPage,
#forgotPasswordPage,
#emailVerifyPage,
#changePasswordPage,
#deleteAccountPage {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
  width: 100%;
  max-width: 1000px;
  padding: var(--spacing-xl);
}

.login-header {
  text-align: center;
  color: white;
  margin-bottom: var(--spacing-xl);
}

.logo-large {
  font-size: 80px;
  margin-bottom: var(--spacing-md);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.login-header h1 {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.login-header p {
  font-size: 18px;
  opacity: 0.9;
}

.user-type-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-lg);
}

.user-type-card {
  background: white;
  border-radius: var(--radius-md);
  padding: var(--spacing-xl);
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-lg);
}

.user-type-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.user-type-icon {
  font-size: 60px;
  margin-bottom: var(--spacing-md);
}

.user-type-card h3 {
  font-size: 20px;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.user-type-card p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  font-size: 14px;
}

/* ==================== Unified Login Interface ==================== */
.login-container-unified {
  width: 100%;
  max-width: 600px;
  padding: var(--spacing-xl);
}

.login-form-wrapper {
  display: grid;
  /* grid-template-columns: 1fr 1fr; */
  gap: var(--spacing-xl);
  align-items: start;
}

.login-form-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-xl);
}

.login-form-card h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: var(--spacing-xl);
  color: var(--text-primary);
  text-align: center;
}

/* Google 登录按钮 */
.btn-google-login {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: white;
  border: 2px solid #dadce0;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  color: #3c4043;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.btn-google-login:hover {
  background: #f8f9fa;
  border-color: #b8bcc0;
  box-shadow: var(--shadow-sm);
}

.btn-google-login:active {
  background: #f1f3f4;
}

.google-icon {
  flex-shrink: 0;
}

/* 分隔线 */
.login-divider {
  display: flex;
  align-items: center;
  margin: var(--spacing-lg) 0;
  color: var(--text-secondary);
  font-size: 14px;
}

.login-divider::before,
.login-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border-color);
}

.login-divider span {
  padding: 0 var(--spacing-md);
}

/* 登录表单 */
.login-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.login-form .form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.login-form label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.login-form input,
.login-form select {
  padding: var(--spacing-md);
  border: 2px solid var(--border-color);
  border-radius: var(--radius);
  font-size: 14px;
  font-family: inherit;
  transition: var(--transition);
  background: white;
}

.login-form input:focus,
.login-form select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.login-form select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--spacing-md) center;
  padding-right: calc(var(--spacing-md) * 2.5);
}

.form-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  cursor: pointer;
  color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
  margin: 0;
}

.link-forgot {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

.link-forgot:hover {
  text-decoration: underline;
}

.btn-login {
  width: 100%;
  padding: var(--spacing-md);
  font-size: 16px;
  font-weight: 600;
  margin-top: var(--spacing-sm);
  flex-direction: column;
}

/* 登录页脚 */
.login-footer {
  margin-top: var(--spacing-lg);
  text-align: center;
  font-size: 14px;
  color: var(--text-secondary);
}

.link-register {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
}

.link-register:hover {
  text-decoration: underline;
}

/* 角色说明卡片 */
.role-info-cards {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-lg);
}

.role-info-cards h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  color: var(--text-primary);
  text-align: center;
}

.role-info-grid {
  display: grid;
  gap: var(--spacing-md);
}

.role-info-item {
  padding: var(--spacing-md);
  border: 2px solid var(--border-color);
  border-radius: var(--radius);
  transition: var(--transition);
}

.role-info-item:hover {
  border-color: var(--primary-color);
  background: rgba(59, 130, 246, 0.02);
}

.role-info-item .role-icon {
  font-size: 32px;
  margin-bottom: var(--spacing-sm);
}

.role-info-item h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--text-primary);
}

.role-info-item p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Responsive Design - Login Page */
@media (max-width: 1024px) {
  .login-form-wrapper {
    grid-template-columns: 1fr;
  }

  .role-info-cards {
    order: -1;
  }

  .role-info-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .login-container-unified {
    padding: var(--spacing-md);
  }

  .login-form-card,
  .role-info-cards {
    padding: var(--spacing-lg);
  }

  .login-header h1 {
    font-size: 36px;
  }

  .logo-large {
    font-size: 60px;
  }

  .role-info-grid {
    grid-template-columns: 1fr;
  }
}

/* ==================== Header Navigation ==================== */
.header {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  align-items: center;
  height: 64px;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 700;
  font-size: 20px;
  color: var(--primary-color);
}

.logo-icon {
  font-size: 28px;
}

.nav {
  display: flex;
  gap: var(--spacing-xs);
}

.nav-link {
  padding: var(--spacing-sm) var(--spacing-md);
  text-decoration: none;
  color: var(--text-secondary);
  border-radius: var(--radius);
  transition: var(--transition);
  font-weight: 500;
  font-size: 14px;
}

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

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

.user-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.notification-btn {
  position: relative;
}

.badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background: var(--danger-color);
  color: white;
  font-size: 10px;
  padding: 2px 5px;
  border-radius: var(--radius-full);
  font-weight: 600;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.user-avatar:hover {
  transform: scale(1.05);
}

.btn-logout {
  padding: var(--spacing-sm) var(--spacing-md);
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 14px;
  transition: var(--transition);
}

.btn-logout:hover {
  background: var(--bg-color);
}

/* ==================== Content Area ==================== */
.section {
  display: none;
}

.section.active {
  display: block;
}

.content-wrapper {
  max-width: 1440px;
  margin: 0 auto;
  padding: var(--spacing-xl);
}

.page-header {
  margin-bottom: var(--spacing-xl);
}

.page-header h1 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.page-subtitle {
  color: var(--text-secondary);
  font-size: 16px;
}

/* ==================== Statistics Cards ==================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.stat-card {
  background: var(--card-bg);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  box-shadow: var(--shadow);
  transition: var(--transition);
  cursor: pointer;
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.stat-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary-color), #3b82f6);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  flex-shrink: 0;
}

.stat-info {
  flex: 1;
}

.stat-info h4 {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 4px;
}

.stat-number {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 12px;
  /* color: var(--text-secondary); */
}

.stat-change {
  font-size: 12px;
  font-weight: 500;
}

.stat-change.positive {
  color: var(--success-color);
}

.stat-change.negative {
  color: var(--danger-color);
}

/* ==================== Card Component ==================== */
.card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-header h3 {
  font-size: 18px;
  font-weight: 600;
}

.link {
  color: var(--primary-color);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
}

.link:hover {
  text-decoration: underline;
}

/* ==================== Dashboard Layout ==================== */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

/* ==================== Video List ==================== */
.video-list {
  padding: var(--spacing-lg);
}

.video-item {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--radius);
  transition: var(--transition);
}

.video-item:hover {
  background: var(--bg-color);
}

.video-thumbnail {
  position: relative;
  flex-shrink: 0;
  border-radius: var(--radius);
  overflow: hidden;
}

.video-thumbnail img {
  width: 120px;
  height: 80px;
  object-fit: cover;
}

.video-duration {
  position: absolute;
  bottom: 4px;
  right: 4px;
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 600;
}

.video-info {
  flex: 1;
}

.video-info h4 {
  font-size: 16px;
  margin-bottom: 4px;
}

.video-meta {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.video-status {
  display: flex;
  gap: var(--spacing-sm);
}

.status-badge {
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 500;
}

.status-badge.success {
  background: #d1fae5;
  color: #065f46;
}

.status-badge.warning {
  background: #fed7aa;
  color: #9a3412;
}

/* ==================== Feedback List ==================== */
.feedback-list {
  padding: var(--spacing-lg);
}

.feedback-item {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--radius);
  transition: var(--transition);
}

.feedback-item:hover {
  background: var(--bg-color);
}

.feedback-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--bg-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.feedback-content {
  flex: 1;
}

.feedback-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.feedback-header strong {
  font-size: 14px;
}

.feedback-time {
  font-size: 12px;
  color: var(--text-secondary);
}

.feedback-content p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.feedback-score {
  display: inline-block;
  padding: 4px 8px;
  background: var(--bg-color);
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  color: var(--primary-color);
}

/* ==================== Badges ==================== */
.badges-grid {
  padding: var(--spacing-lg);
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--spacing-md);
}

.badge-item {
  text-align: center;
  padding: var(--spacing-md);
  border-radius: var(--radius);
  transition: var(--transition);
  cursor: pointer;
}

.badge-item:hover {
  background: var(--bg-color);
}

.badge-item.locked {
  opacity: 0.5;
}

.badge-icon {
  font-size: 40px;
  margin-bottom: var(--spacing-sm);
}

.badge-name {
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 4px;
}

.badge-date,
.badge-progress {
  font-size: 12px;
  color: var(--text-secondary);
}

/* ==================== Upload Area ==================== */
.upload-container {
  max-width: 800px;
  margin: 0 auto;
}

.upload-area {
  background: var(--card-bg);
  border: 3px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 60px var(--spacing-lg);
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}

.upload-area:hover,
.upload-area.drag-over {
  border-color: var(--primary-color);
  background: var(--bg-color);
}

.upload-icon {
  font-size: 60px;
  margin-bottom: var(--spacing-md);
}

.upload-area h3 {
  font-size: 20px;
  margin-bottom: var(--spacing-md);
}

.upload-hint {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: var(--spacing-md);
}

.upload-form {
  background: var(--card-bg);
  padding: var(--spacing-xl);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  margin-top: var(--spacing-lg);
}

.video-preview {
  margin-bottom: var(--spacing-lg);
  border-radius: var(--radius);
  overflow: hidden;
}

.video-preview video {
  width: 100%;
  max-height: 400px;
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
  font-size: 14px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  font-size: 14px;
  transition: var(--transition);
  font-family: inherit;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

.form-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: flex-end;
}

.upload-progress {
  margin-top: var(--spacing-lg);
}

.progress-bar {
  height: 8px;
  background: var(--bg-color);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--spacing-sm);
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-color), #3b82f6);
  transition: width 0.3s ease;
}

.progress-text {
  text-align: center;
  font-size: 14px;
  color: var(--text-secondary);
}

/* ==================== Buttons ==================== */
.btn {
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.btn-primary {
  background: var(--primary-color);
  color: white;
}

.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-secondary {
  background: var(--bg-color);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--border-color);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

.btn-block {
  width: 100%;
  justify-content: center;
}

.btn-icon {
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 18px;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-icon:hover {
  background: var(--bg-color);
}

/* ==================== Feedback Page ==================== */
.filter-tabs {
  display: flex;
  gap: var(--spacing-sm);
}

.tab-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
}

.tab-btn:hover {
  background: var(--bg-color);
}

.tab-btn.active {
  background: var(--primary-color);
  color: white;
}

.feedback-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
  gap: var(--spacing-lg);
}

.feedback-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.feedback-card-header {
  padding: var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
}

.feedback-type {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 600;
}

.type-icon {
  font-size: 20px;
}

.feedback-date {
  font-size: 12px;
  color: var(--text-secondary);
}

.feedback-video {
  position: relative;
  aspect-ratio: 16/9;
  background: #000;
}

.feedback-video img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.9);
  border: none;
  font-size: 24px;
  cursor: pointer;
  transition: var(--transition);
}

.play-btn:hover {
  transform: translate(-50%, -50%) scale(1.1);
}

.video-badge {
  position: absolute;
  bottom: var(--spacing-sm);
  right: var(--spacing-sm);
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
}

.feedback-body {
  padding: var(--spacing-lg);
}

.feedback-body h3 {
  font-size: 18px;
  margin-bottom: var(--spacing-md);
}

.score-display {
  display: flex;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.score-circle {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #0066cc, #004499);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 700;
  flex-shrink: 0;
}

.score-breakdown {
  flex: 1;
}

.score-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  font-size: 13px;
}

.score-item span:first-child {
  min-width: 100px;
}

.score-item span:last-child {
  min-width: 30px;
  font-weight: 600;
}

.score-bar {
  flex: 1;
  height: 6px;
  background: var(--bg-color);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.score-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--success-color), #10b981);
}

.suggestions {
  background: var(--bg-color);
  padding: var(--spacing-md);
  border-radius: var(--radius);
}

.suggestions h4 {
  font-size: 14px;
  margin-bottom: var(--spacing-sm);
}

.suggestions ul {
  list-style: none;
}

.suggestions li {
  font-size: 13px;
  padding: 4px 0;
}

.feedback-text {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

.feedback-actions {
  display: flex;
  gap: var(--spacing-sm);
}

/* ==================== Timeline ==================== */
.timeline {
  position: relative;
  padding: var(--spacing-lg);
}

.timeline::before {
  content: "";
  position: absolute;
  left: 31px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
}

.timeline-item {
  position: relative;
  padding-left: 60px;
  padding-bottom: var(--spacing-xl);
}

.timeline-dot {
  position: absolute;
  left: 24px;
  top: 0;
  width: 16px;
  height: 16px;
  border-radius: var(--radius-full);
  background: var(--primary-color);
  border: 3px solid var(--card-bg);
  box-shadow: 0 0 0 2px var(--primary-color);
}

.timeline-content {
  background: var(--bg-color);
  padding: var(--spacing-md);
  border-radius: var(--radius);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.timeline-header h4 {
  font-size: 16px;
}

.timeline-header span {
  font-size: 12px;
  color: var(--text-secondary);
}

.timeline-content p {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ==================== Large Badges ==================== */
.badges-collection {
  padding: var(--spacing-lg);
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-lg);
}

.badge-large {
  background: var(--bg-color);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  text-align: center;
  transition: var(--transition);
}

.badge-large:hover {
  transform: translateY(-4px);
}

.badge-large.locked {
  opacity: 0.6;
}

.badge-large .badge-icon {
  font-size: 60px;
  margin-bottom: var(--spacing-md);
}

.badge-large h4 {
  font-size: 16px;
  margin-bottom: var(--spacing-sm);
}

.badge-large p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.badge-progress-bar {
  height: 6px;
  background: var(--border-color);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--spacing-sm);
}

.badge-progress-bar .progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-color), #3b82f6);
}

.badge-large span {
  font-size: 12px;
  color: var(--text-secondary);
}

/* ==================== Coach Portal ==================== */
.review-queue {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.queue-item {
  background: var(--card-bg);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: 200px 150px 1fr auto auto;
  gap: var(--spacing-lg);
  align-items: center;
}

.queue-player {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.player-thumb {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  object-fit: cover;
}

.player-info h4 {
  font-size: 16px;
  margin-bottom: 4px;
}

.player-info p {
  font-size: 13px;
  color: var(--text-secondary);
}

.queue-video {
  position: relative;
}

.queue-video img {
  width: 120px;
  height: 80px;
  border-radius: var(--radius);
  object-fit: cover;
}

.queue-details h4 {
  font-size: 16px;
  margin-bottom: 4px;
}

.queue-details p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.ai-summary {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
  font-size: 13px;
}

.summary-label {
  color: var(--text-secondary);
}

.summary-value {
  font-weight: 600;
  color: var(--primary-color);
}

.summary-tag {
  padding: 2px 8px;
  background: var(--bg-color);
  border-radius: var(--radius-sm);
  font-size: 11px;
}

.priority-badge {
  padding: 6px 12px;
  border-radius: var(--radius);
  font-size: 12px;
  font-weight: 600;
}

.priority-badge.high {
  background: #fee2e2;
  color: #991b1b;
}

.priority-badge.medium {
  background: #fed7aa;
  color: #9a3412;
}

.priority-badge.low {
  background: #e0e7ff;
  color: #3730a3;
}

/* ==================== Recruiter Portal ==================== */
.filter-panel {
  margin-bottom: var(--spacing-lg);
}

.filter-row {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  align-items: flex-end;
}

.filter-group {
  flex: 1;
}

.player-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.player-discovery-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
  transition: var(--transition);
}

.player-discovery-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-bookmark {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  width: 32px;
  height: 32px;
  background: white;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  cursor: pointer;
  z-index: 10;
}

.player-photo-large {
  height: 200px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.player-photo-large img {
  width: 100px;
  height: 100px;
  border-radius: var(--radius-full);
  border: 4px solid white;
  object-fit: cover;
}

.player-card-body {
  padding: var(--spacing-lg);
}

.player-card-body h3 {
  font-size: 20px;
  margin-bottom: 4px;
}

.player-position {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: var(--spacing-md);
}

.player-ratings {
  display: flex;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.rating-item {
  text-align: center;
}

.rating-label {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.rating-value {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.rating-value.large {
  font-size: 28px;
  color: var(--primary-color);
}

.player-highlights {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.highlight-tag {
  padding: 4px 10px;
  background: var(--bg-color);
  border-radius: var(--radius-sm);
  font-size: 12px;
  color: var(--text-primary);
}

.player-stats-mini {
  display: flex;
  justify-content: space-around;
  padding: var(--spacing-md);
  background: var(--bg-color);
  border-radius: var(--radius);
  margin-bottom: var(--spacing-md);
}

.stat-mini {
  text-align: center;
}

.stat-mini span:first-child {
  display: block;
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-mini .stat-label,
.stat-mini label {
  display: block;
  font-size: 11px;
  color: var(--text-secondary);
}

.card-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

/* ==================== Admin Portal ==================== */
.date-display {
  font-size: 14px;
  color: var(--text-secondary);
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.kpi-card {
  background: var(--card-bg);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  display: flex;
  gap: var(--spacing-md);
}

.kpi-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-color), #3b82f6);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  flex-shrink: 0;
}

.kpi-data {
  flex: 1;
}

.kpi-data h4 {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.kpi-number {
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 4px;
}

.kpi-change {
  font-size: 12px;
  font-weight: 500;
}

.kpi-status {
  font-size: 12px;
  font-weight: 500;
}

.kpi-status.healthy {
  color: var(--success-color);
}

.kpi-chart {
  font-size: 40px;
}

.alert-list {
  padding: var(--spacing-lg);
}

.alert-item {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--radius);
  margin-bottom: var(--spacing-md);
}

.alert-item.warning {
  background: #fef3c7;
}

.alert-item.info {
  background: #dbeafe;
}

.alert-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.alert-content h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
}

.alert-content p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.alert-time {
  font-size: 11px;
  color: var(--text-muted);
}

.quick-actions {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  flex-wrap: wrap;
}

.action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg);
  background: var(--bg-color);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  min-width: 120px;
}

.action-btn:hover {
  background: var(--border-color);
  transform: translateY(-2px);
}

.action-icon {
  font-size: 32px;
}

.action-btn span:last-child {
  font-size: 13px;
  font-weight: 500;
}

/* ==================== Chart Container ==================== */
.chart-container {
  padding: var(--spacing-lg);
  height: 300px;
}

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

  .queue-item {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav {
    display: none;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .feedback-grid {
    grid-template-columns: 1fr;
  }

  .player-cards-grid {
    grid-template-columns: 1fr;
  }

  .kpi-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .filter-row {
    flex-direction: column;
  }
}

/* ==================== Utility Classes ==================== */
.w-full {
  width: 100%;
}

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

.badge-count {
  padding: 4px 8px;
  background: var(--danger-color);
  color: white;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
}

.form-select-sm {
  padding: 6px 10px;
  font-size: 13px;
}

.header-actions {
  display: flex;
  gap: var(--spacing-md);
}

/* ==================== Modal ==================== */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.5);
  align-items: center;
  justify-content: center;
}

.modal.active {
  display: flex;
}

.modal-content {
  background-color: var(--card-bg);
  margin: auto;
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 500px;
  position: relative;
  animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
  from {
    transform: translateY(-20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: var(--spacing-md);
}

.modal-header h2 {
  font-size: 20px;
  font-weight: 700;
}

.close-modal {
  color: var(--text-secondary);
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
  transition: var(--transition);
  line-height: 1;
}

.close-modal:hover {
  color: var(--text-primary);
}

.modal-body {
  margin-bottom: var(--spacing-lg);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
}