:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f5f6f8;
  color: #15181d;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
}

.phone {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.panel {
  width: min(100%, 380px);
  background: #ffffff;
  border: 1px solid #dfe3ea;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 18px 50px rgba(18, 25, 38, 0.08);
}

h1 {
  margin: 0 0 12px;
  font-size: 24px;
  line-height: 1.2;
}

.status {
  min-height: 36px;
  border-radius: 6px;
  padding: 8px 10px;
  margin-bottom: 14px;
  background: #eef2f7;
  color: #354052;
  font-size: 14px;
}

label {
  display: grid;
  gap: 6px;
  margin: 12px 0;
  font-size: 13px;
  color: #4d5a6b;
}

input {
  width: 100%;
  height: 42px;
  border: 1px solid #cfd6e1;
  border-radius: 6px;
  padding: 0 12px;
  font-size: 16px;
  color: #15181d;
  background: #ffffff;
}

.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 12px 0;
}

button {
  height: 42px;
  border: 0;
  border-radius: 6px;
  background: #1f7a4d;
  color: #ffffff;
  font-weight: 650;
  cursor: pointer;
}

button:disabled {
  background: #c7ced8;
  cursor: not-allowed;
}

#disconnect,
#hangup {
  background: #9d2f35;
}

#disconnect:disabled,
#hangup:disabled {
  background: #c7ced8;
}