body {
  font-family: Arial, sans-serif;
  background-color: #f5f5f5;
  text-align: center;
  padding: 2rem;
  color: #333;
  font-size: 1.2rem;
}

h1 {
  font-family: Brush Script MT, cursive;
  font-size: 2.4rem;
}

.contacts-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

#addContactBtn {
  background-color: #007BFF;
  color: white;
  border: none;
  padding: 0.75rem 1.2rem;
  font-size: 1.2rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s;
}

#addContactBtn:hover {
  background-color: #0056b3;
}

#contactList {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.contact-item {
  display: flex;
  align-items: center;
  padding: 12px;
  background-color: #007BFF;
  border-radius: 12px;
  cursor: pointer;
  transition: background-color 0.2s;
  color: white;
}

.contact-item.selected {
  background-color: #28a745;
}

.avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  margin-right: 12px;
  border: 2px solid white;
}

.contact-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.contact-name {
  font-size: 1.2rem;
  font-weight: 600;
}

.contact-phone {
  font-size: 1rem;
  color: #e0e0e0;
}

.button-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 300px;
  margin: 0 auto 2rem;
}

button {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1.8rem;
  font-size: 1.4rem;
  background-color: #007BFF;
  color: white;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: background-color 0.3s;
}

.btn-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 0.5rem;
}

button:hover {
  background-color: #0056b3;
}

button.active {
  background-color: #28a745 !important;
}

.status {
  font-size: 1.5rem;
  background-color: #e0e0e0;
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 2rem;
}

.modal-overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  width: 90%;
  max-width: 400px;
  text-align: center;
}

.modal input {
  width: 100%;
  padding: 1rem;
  font-size: 1.2rem;
  margin-bottom: 1rem;
  border-radius: 8px;
  border: 1px solid #ccc;
  box-sizing: border-box;
}

.modal-actions {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.modal-actions button {
  flex: 1;
  padding: 1rem;
  font-size: 1.2rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

#cancelModal {
  background-color: #ccc;
}

#confirmModal {
  background-color: #007BFF;
  color: white;
}