:root {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #f2f5f9;
  color: #1a1f2c;
}

.app {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.card {
  width: min(100%, 620px);
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  padding: 1.25rem;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: 1.4rem;
}

.intro {
  margin: 0 0 1.25rem;
  color: #4a5568;
}

.field {
  margin-bottom: 1rem;
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

input[type="text"],
input[type="url"],
textarea,
input[type="file"] {
  width: 100%;
  border: 1px solid #cbd5e0;
  border-radius: 8px;
  padding: 0.65rem;
  font: inherit;
  background: #fff;
  color: inherit;
}

textarea {
  resize: vertical;
}

.hint {
  margin: 0.4rem 0 0;
  font-size: 0.9rem;
  color: #4a5568;
}

button {
  width: 100%;
  border: none;
  border-radius: 8px;
  padding: 0.75rem 1rem;
  background: #0066ff;
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
}

button:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.status {
  min-height: 1.2rem;
  margin-top: 1rem;
  font-weight: 600;
}

.status.success {
  color: #166534;
}

.status.error {
  color: #b91c1c;
}

.back-link {
  margin-top: 1rem;
  text-align: center;
}

@media (max-width: 480px) {
  .card {
    padding: 1rem;
  }
}