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

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

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

.header {
  text-align: center;
  color: white;
  margin-bottom: 30px;
}

.header h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.subtitle {
  font-size: 1.1rem;
  opacity: 0.9;
}

.form-section, .table-section {
  background: white;
  border-radius: 16px;
  padding: 25px;
  margin-bottom: 25px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.form-section h2, .table-section h2 {
  color: #333;
  margin-bottom: 20px;
  font-size: 1.5rem;
}

.vacation-form {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
}

.form-row {
  display: flex;
  gap: 15px;
  flex: 1;
  min-width: 280px;
}

.form-group {
  flex: 1;
  min-width: 140px;
}

.form-group.full-width {
  flex-basis: 100%;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  color: #555;
  font-weight: 500;
  font-size: 0.9rem;
}

.form-group input {
  width: 100%;
  padding: 12px;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.3s;
}

.form-group input:focus {
  outline: none;
  border-color: #667eea;
}

.btn-add {
  flex-basis: 100%;
  padding: 14px 30px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  margin-top: 10px;
}

.btn-add:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 15px;
}

.table-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.count-badge {
  background: #667eea;
  color: white;
  padding: 6px 14px;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.9rem;
}

.btn-export {
  padding: 10px 20px;
  background: #10b981;
  color: white;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s;
}

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

.table-wrapper {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead {
  background: #f8f9fa;
}

th, td {
  padding: 14px 12px;
  text-align: left;
  border-bottom: 1px solid #e0e0e0;
}

th {
  font-weight: 600;
  color: #333;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

tbody tr:hover {
  background: #f8f9fa;
}

tbody tr:last-child td {
  border-bottom: none;
}

.btn-delete {
  padding: 6px 14px;
  background: #ef4444;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: background 0.3s;
}

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

.empty-message {
  text-align: center;
  color: #999;
  padding: 40px 20px;
  font-size: 1.1rem;
}

@media (max-width: 768px) {
  .header h1 {
    font-size: 1.8rem;
  }
  
  .form-row {
    flex-direction: column;
  }
  
  .table-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  th, td {
    padding: 10px 8px;
    font-size: 0.85rem;
  }
}