* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #f4f6f9;
  color: #1f2937;
}

.container {
  width: min(1100px, 92%);
  margin: 30px auto;
}

header {
  margin-bottom: 20px;
}

header h1 {
  margin: 0 0 10px;
  font-size: 2rem;
}

header p {
  margin: 0;
  color: #4b5563;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.card {
  background: #fff;
  border-radius: 14px;
  padding: 22px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

.field {
  margin-bottom: 16px;
}

.field label {
  display: block;
  margin-bottom: 6px;
  font-weight: bold;
}

.field input,
.field textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  font-size: 1rem;
}

.field textarea {
  resize: vertical;
}

button {
  width: 100%;
  border: 0;
  border-radius: 10px;
  padding: 14px;
  background: #1d4ed8;
  color: #fff;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
}

button:hover {
  background: #1e40af;
}

button:disabled {
  background: #94a3b8;
  cursor: not-allowed;
}

.status {
  padding: 12px;
  border-radius: 10px;
  margin-bottom: 15px;
  font-weight: bold;
}

.status.error {
  background: #fee2e2;
  color: #991b1b;
}

.status.loading {
  background: #dbeafe;
  color: #1e3a8a;
}

.status.success {
  background: #dcfce7;
  color: #166534;
}

.result-block + .result-block {
  margin-top: 22px;
}

.result-block h2 {
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.hidden {
  display: none;
}

ul {
  padding-left: 20px;
}

li {
  margin-bottom: 8px;
}

@media (max-width: 900px) {
  .grid {
    grid-template-columns: 1fr;
  }
}