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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  padding: 20px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.card {
  background: white;
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  margin-bottom: 20px;
}

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

h1 {
  color: #333;
  font-size: 28px;
  font-weight: 600;
}

h2 {
  color: #555;
  font-size: 20px;
  margin-bottom: 20px;
  font-weight: 600;
}

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

.user-name {
  color: #555;
  font-weight: 500;
}

.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.3s ease;
}

.btn-primary {
  background: #667eea;
  color: white;
}

.btn-primary:hover {
  background: #5568d3;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-success {
  background: #10b981;
  color: white;
}

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

.btn-danger {
  background: #ef4444;
  color: white;
}

.btn-danger:hover {
  background: #dc2626;
}

.btn-secondary {
  background: #6b7280;
  color: white;
}

.btn-secondary:hover {
  background: #4b5563;
}

.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 8px;
  color: #374151;
  font-weight: 500;
  font-size: 14px;
}

input[type="text"],
input[type="password"],
input[type="date"],
select,
textarea {
  width: 100%;
  padding: 12px;
  border: 2px solid #e5e7eb;
  border-radius: 6px;
  font-size: 14px;
  transition: border-color 0.3s ease;
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="date"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: #667eea;
}

.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.login-card {
  background: white;
  border-radius: 12px;
  padding: 40px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  width: 100%;
  max-width: 400px;
}

.login-card h1 {
  text-align: center;
  margin-bottom: 30px;
  color: #667eea;
}

.error-message {
  background: #fee2e2;
  color: #991b1b;
  padding: 12px;
  border-radius: 6px;
  margin-bottom: 20px;
  font-size: 14px;
}

.success-message {
  background: #d1fae5;
  color: #065f46;
  padding: 12px;
  border-radius: 6px;
  margin-bottom: 20px;
  font-size: 14px;
}

.request-list {
  display: grid;
  gap: 15px;
}

.request-item {
  background: #f9fafb;
  border: 2px solid #e5e7eb;
  border-radius: 8px;
  padding: 20px;
  transition: all 0.3s ease;
}

.request-item:hover {
  border-color: #667eea;
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.1);
}

.request-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: 15px;
}

.request-user {
  font-weight: 600;
  color: #111827;
  font-size: 16px;
}

.request-status {
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

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

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

.request-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px;
  margin-bottom: 15px;
}

.detail-item {
  font-size: 14px;
  color: #6b7280;
}

.detail-label {
  font-weight: 600;
  color: #374151;
}

.request-actions {
  display: flex;
  gap: 10px;
  margin-top: 15px;
}

.nav-links {
  display: flex;
  gap: 10px;
}

.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: #6b7280;
}

.empty-state p {
  font-size: 16px;
}

.tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  border-bottom: 2px solid #e5e7eb;
}

.tab {
  padding: 12px 24px;
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  color: #6b7280;
  transition: all 0.3s ease;
}

.tab.active {
  color: #667eea;
  border-bottom-color: #667eea;
}

.tab:hover {
  color: #667eea;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}