/* styles.css */
body {
  font-family: Arial, sans-serif;
  background-color: #f3f4f6;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.phone-client {
  background-color: white;
  width: 300px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  text-align: center;
}

header {
  padding: 10px;
  border-bottom: 1px solid #ddd;
}

header h1 {
  margin: 0;
  font-size: 18px;
}

header nav {
  margin-top: 10px;
}

header nav button {
  background: none;
  border: none;
  padding: 5px 10px;
  font-size: 14px;
  color: gray;
  cursor: pointer;
}

header nav .active {
  color: black;
  font-weight: bold;
  border-bottom: 2px solid #007bff;
}

main {
  padding: 20px;
}

#phone-number {
  width: 100%;
  padding: 10px;
  font-size: 16px;
  margin-bottom: 20px;
  border: 1px solid #ddd;
  border-radius: 5px;
  text-align: center;
}

.keypad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.keypad button {
  background-color: #f1f1f1;
  border: none;
  padding: 15px;
  font-size: 18px;
  border-radius: 50%;
  position: relative;
  cursor: pointer;
}

.keypad button span {
  position: absolute;
  top: 5px;
  right: 5px;
  font-size: 10px;
  color: gray;
}

.keypad button:hover {
  background-color: #ddd;
}

.controls {
  margin-top: 20px;
}

.controls .call {
  background-color: #28a745;
  border: none;
  padding: 10px 30px;
  color: white;
  font-size: 16px;
  border-radius: 5px;
  cursor: pointer;
}

.controls .end {
  background-color: #dc3545;
  border: none;
  padding: 10px 30px;
  color: white;
  font-size: 16px;
  border-radius: 5px;
  margin-left: 10px;
  cursor: pointer;
}

.call-status {
    font-size: 18px;
    margin-top: 10px;
    text-align: center;
}

#call-status {
    font-weight: bold;
    color: #555;
}

#call-timer {
    font-size: 16px;
    font-weight: bold;
    color: green;
    margin-left: 10px;
}