body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f2f4f7;
  color: #1f2937;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 16px;
}

.brand {
  text-align: center;
  margin-bottom: 28px;
  font-size: 48px;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.brand .ai {
  color: #1f2937;
}

.brand .conver {
  color: #3aa7ad;
}

.card {
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 14px;
  padding: 24px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.field {
  margin-bottom: 16px;
}

label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  font-size: 18px;
}

input,
select {
  width: 100%;
  height: 44px;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  background: #f8fafc;
  padding: 0 12px;
  font-size: 16px;
  box-sizing: border-box;
}

button {
  width: 100%;
  height: 46px;
  border: 0;
  border-radius: 10px;
  background: #4b43b9;
  color: white;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
}

button[disabled] {
  opacity: 0.7;
  cursor: not-allowed;
}

.status {
  margin-top: 14px;
  font-size: 14px;
  word-break: break-word;
}

.ok {
  color: #047857;
}

.err {
  color: #b91c1c;
}