* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  background: #f3f4f6;
  color: #111827;
}

.container {
  width: min(100%, 520px);
  margin: 0 auto;
  padding: 32px 18px;
}

.card {
  background: white;
  border-radius: 18px;
  padding: 24px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

h1 {
  margin: 0 0 8px;
  font-size: 1.7rem;
}

.subtitle {
  margin: 0 0 22px;
  color: #6b7280;
  overflow-wrap: anywhere;
}

label {
  display: block;
  margin: 16px 0 7px;
  font-weight: 700;
}

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

button {
  border: 0;
  border-radius: 10px;
  padding: 13px 16px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  background: #166534;
  color: white;
}

form button {
  width: 100%;
  margin-top: 20px;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.secondary {
  background: #374151;
}

.danger {
  background: #b91c1c;
}

.actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 20px;
}

.full-width {
  width: 100%;
  margin-top: 12px;
}

.top-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.top-row .secondary {
  white-space: nowrap;
  padding: 10px 12px;
}

.status-box {
  margin: 20px 0;
  padding: 14px;
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
}

.status-box p {
  margin: 6px 0;
}

.message {
  min-height: 24px;
  margin: 18px 0 0;
  font-weight: 700;
  line-height: 1.4;
}

.message.success {
  color: #166534;
}

.message.error {
  color: #b91c1c;
}

.hidden {
  display: none;
}

@media (max-width: 430px) {
  .actions {
    grid-template-columns: 1fr;
  }

  .top-row {
    flex-direction: column;
  }
}