* {
  box-sizing: border-box;
}

:root {
  color-scheme: light;
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  background-color: #f4f4f5;
  color: #111827;
}

body {
  margin: 0;
}

.app {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding: 24px;
}

@media (min-width: 1024px) {
  .app {
    grid-template-columns: minmax(0, 2fr) minmax(0, 3fr);
  }
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.card {
  background-color: #ffffff;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  overflow: hidden;
}

.card-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card-title {
  font-size: 20px;
  font-weight: 600;
  margin: 0;
}

.form-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.two-column {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}

.field-label {
  font-size: 13px;
  font-weight: 500;
  color: #4b5563;
}

.input,
.textarea,
.select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid #d1d5db;
  font-size: 14px;
  color: #111827;
  background-color: #ffffff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.input:focus,
.textarea:focus,
.select:focus {
  border-color: #2563eb;
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
  outline: none;
}

.textarea {
  resize: vertical;
  min-height: 80px;
}

.checkbox-field {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: #4b5563;
}

.checkbox {
  width: 18px;
  height: 18px;
  margin-top: 2px;
}

.checkbox-label {
  line-height: 1.4;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border-radius: 10px;
  border: none;
  font-size: 14px;
  font-weight: 600;
  color: #ffffff;
  background-color: #2563eb;
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 22px rgba(37, 99, 235, 0.25);
}

.btn:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn-secondary {
  background-color: #1f2937;
}

.btn-outline {
  background-color: #ffffff;
  color: #2563eb;
  border: 1px solid #2563eb;
}

.btn-outline:hover {
  background-color: #2563eb;
  color: #ffffff;
}

.self-test-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.self-test-msg {
  font-size: 12px;
  color: #6b7280;
}

.info-card ul {
  margin: 0;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
  color: #4b5563;
}

.preview-area {
  display: flex;
}

.preview-card {
  background-color: #ffffff;
  border-radius: 20px;
  box-shadow: 0 20px 35px rgba(15, 23, 42, 0.12);
  padding: 24px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.preview-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
}

.preview-title {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
}

.preview-actions {
  display: flex;
  gap: 12px;
}

.preview {
  width: 100%;
  display: flex;
  justify-content: center;
}

.preview > div {
  margin: 0 auto;
}

@media (max-width: 768px) {
  .preview-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .preview-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .preview-actions .btn {
    width: auto;
  }
}