* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  color: #333;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
  color: white;
}

.header-content h1 {
  font-size: 2.5rem;
  font-weight: bold;
  margin-bottom: 5px;
}

.header-content p {
  font-size: 1.2rem;
  opacity: 0.9;
  margin-bottom: 10px;
}

.contact-info {
  display: flex;
  gap: 20px;
  font-size: 0.9rem;
  opacity: 0.8;
}

.upload-btn {
  background: white;
  color: #667eea;
  border: none;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
}

.upload-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Upload Section */
.upload-section {
  background: white;
  border-radius: 12px;
  padding: 30px;
  margin-bottom: 30px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.upload-card h3 {
  margin-bottom: 20px;
  color: #333;
  font-size: 1.5rem;
}

.upload-area {
  border: 2px dashed #667eea;
  border-radius: 8px;
  padding: 40px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.upload-area:hover {
  border-color: #764ba2;
  background: #f8f9ff;
}

.upload-area i {
  font-size: 3rem;
  color: #667eea;
  margin-bottom: 15px;
}

.upload-area p {
  color: #666;
  font-size: 1.1rem;
}

.upload-progress {
  margin-top: 20px;
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: #e5e7eb;
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #667eea, #764ba2);
  width: 0%;
  transition: width 0.3s ease;
}

/* Statistics Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.stat-card {
  background: white;
  border-radius: 12px;
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-2px);
}

.stat-icon {
  font-size: 2rem;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f8f9ff;
  border-radius: 12px;
}

.stat-content h3 {
  font-size: 2rem;
  font-weight: bold;
  margin-bottom: 4px;
  color: #3b82f6;
}

.stat-content p {
  color: #666;
  font-size: 0.9rem;
}

/* Filters */
.filters-container {
  background: white;
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 30px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.filters {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.search-input,
.filter-select {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #e5e7eb;
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.search-input:focus,
.filter-select:focus {
  outline: none;
  border-color: #667eea;
}

.clear-filters-btn {
  background: #667eea;
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s ease;
}

.clear-filters-btn:hover {
  background: #764ba2;
}

/* Table */
.table-container {
  background: white;
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.table-header h3 {
  font-size: 1.5rem;
  color: #333;
}

.export-btn {
  background: #10b981;
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: background 0.3s ease;
}

.export-btn:hover {
  background: #059669;
}

.table-wrapper {
  overflow-x: auto;
  margin-bottom: 20px;
}

.members-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.members-table th {
  background: #f8f9ff;
  padding: 12px;
  text-align: left;
  font-weight: 600;
  color: #333;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

.members-table th:hover {
  background: #e5e7eb;
}

.members-table th i {
  margin-left: 5px;
  opacity: 0.5;
}

.members-table td {
  padding: 12px;
  border-bottom: 1px solid #e5e7eb;
}

.members-table tr:hover {
  background: #f8f9ff;
}

.status-badge {
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
}

.status-active {
  background: #dcfce7;
  color: #166534;
}

.status-expiring {
  background: #fef3c7;
  color: #92400e;
}

.status-expired {
  background: #fee2e2;
  color: #991b1b;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.pagination-btn {
  background: #667eea;
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.3s ease;
}

.pagination-btn:hover:not(:disabled) {
  background: #764ba2;
}

.pagination-btn:disabled {
  background: #e5e7eb;
  color: #9ca3af;
  cursor: not-allowed;
}

.pagination-info {
  color: #666;
  font-weight: 500;
}

/* Responsive */
@media (max-width: 768px) {
  .header {
    flex-direction: column;
    text-align: center;
    gap: 20px;
  }

  .contact-info {
    flex-direction: column;
    gap: 5px;
  }

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

  .table-header {
    flex-direction: column;
    gap: 15px;
    align-items: stretch;
  }

  .pagination {
    flex-direction: column;
    gap: 10px;
  }
}

/* Hidden class */
.hidden {
  display: none !important;
}