:root {
  --main-color: #1cc88a;
  --main-color_hover: #159e6d;
}
body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: var(--main-color);
  color: #333;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}
.logo {
  width: 205px;
  position: absolute;
  margin: -131px auto 0;
  left: 0;
  right: 0;
}
.card {
  background: #fff;
  padding: 25px;
  border-radius: 15px;
  max-width: 400px;
  width: 100%;
  margin: 0 28px;
  text-align: center;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}
h2 {
  margin-top: 0;
  color: #000000;
  font-size: 19px;
}
button {
  display: flex;
  margin: 10px 5px;
  padding: 12px 20px;
  border: none;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 400;
  cursor: pointer;
  transition: all 0.3s;
  color: #fff;
  padding: 13px 28px;
  margin: 0 auto;
  gap: 4px;
  min-width: 185px;
  justify-content: center;
}
button:disabled {
  background: #ccc;
  cursor: not-allowed;
}

button:hover {
opacity: 0.7;}
#linkBtn {
    background: #2e59d9;
}

#copyBtn {
  background: #1cc88a;
}

#callBtn {
  background: var(--main-color);
  display: none;
}

#endBtn {
  background: #e74a3b;
  display: none;
}
#reloadBtn {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    margin: 37px auto 0;
    width: fit-content;
    background: none;
}
#linkBox {
  margin-top: 15px;
  display: none;
  background: #f8f9fc;
  padding: 15px;
  border-radius: 10px;
  word-break: break-all;
  padding: 25px 10px;
}
#callLink {
  display: block;
  margin: 10px 0;
  color: #a8a8a8;
  text-decoration: none;
  pointer-events: none;
}
#callLink:hover {
  text-decoration: underline;
}
#status {
  margin-top: 15px;
  font-size: 16px;
  font-weight: 600;
  display: none;
  align-items: center;
  justify-content: center;
}
.dot {
  height: 12px;
  width: 12px;
  background-color: #28a745;
  border-radius: 50%;
  display: inline-block;
  margin-left: 8px;
  animation: blink 1s infinite;
}
@keyframes blink {
  0% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
audio {
  display: none;
}
@media (max-width: 480px) {
  h2 {
    font-size: 20px;
  }
  #linkBox {
    font-size: 14px;
  }
}