* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background: #f3f4f6;
  font-family: Arial, sans-serif;
  color: #111827;
}

.phone {
  width: 100%;
  max-width: 480px;
  padding: 36px;
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 22px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.08);
}

.logo {
  margin-bottom: 28px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

h1 {
  margin: 0 0 10px;
  font-size: 28px;
}

.description {
  margin: 0 0 28px;
  color: #6b7280;
  line-height: 1.5;
}

label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 700;
}

input {
  width: 100%;
  height: 48px;
  margin-bottom: 12px;
  padding: 0 14px;
  border: 1px solid #d1d5db;
  border-radius: 12px;
  font-size: 16px;
}

button {
  width: 100%;
  min-height: 48px;
  border: 0;
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.primary,
.call {
  background: #111827;
  color: white;
}

.hangup {
  background: #fee2e2;
  color: #991b1b;
}

.status {
  margin: 20px 0;
  padding: 14px;
  border-radius: 12px;
  background: #f3f4f6;
  text-align: center;
  font-size: 14px;
}

.status[data-type="success"] {
  background: #dcfce7;
  color: #166534;
}

.status[data-type="error"] {
  background: #fee2e2;
  color: #991b1b;
}

.call-controls {
  display: grid;
  gap: 10px;
}