:root {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.5;
  color: #1f2933;
}

body {
  margin: 0;
  background: #f3f4f6;
}

.site-header {
  background: #0f4c81;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-header a {
  color: #fff;
  text-decoration: none;
}

.lang-switch a {
  padding: 0 0.25rem;
  opacity: 0.75;
}

.lang-switch a.active {
  font-weight: 600;
  opacity: 1;
}

.user-tools {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.user-tools form {
  margin: 0;
}

.user-tools button {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  padding: 0.4rem 0.8rem;
  border-radius: 4px;
  cursor: pointer;
}

.container {
  max-width: 960px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.card {
  background: #fff;
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(15, 76, 129, 0.12);
}

.card.narrow {
  max-width: 420px;
  margin: 2rem auto;
}

.form-grid {
  display: grid;
  gap: 1rem;
}

.form-grid label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

input[type='text'],
input[type='password'],
input[type='date'],
select {
  border: 1px solid #cfd8e3;
  border-radius: 6px;
  padding: 0.65rem;
  font-size: 1rem;
}

.btn {
  border: none;
  background: #d1d5db;
  color: #1f2933;
  padding: 0.65rem 1.25rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1rem;
}

.btn.primary {
  background: #0f4c81;
  color: #fff;
}

.btn.secondary {
  background: #e5e7eb;
  color: #111827;
}

.btn.danger {
  background: #b91c1c;
  color: #fff;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn.secondary:hover {
  background: #d1d5db;
}

.alert {
  padding: 0.85rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
}

.alert.success {
  background: #ecfdf5;
  color: #03643f;
}

.alert.info {
  background: #dbeafe;
  color: #1e3a8a;
}

.alert.error {
  background: #fef2f2;
  color: #991b1b;
}

.muted {
  color: #6b7280;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.info-grid .label {
  font-size: 0.9rem;
  color: #6b7280;
}

.table-wrapper {
  overflow-x: auto;
  margin-top: 1.5rem;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border: 1px solid #e5e7eb;
  padding: 0.75rem;
  text-align: center;
}

th:first-child,
td:first-child {
  text-align: start;
  min-width: 220px;
}

.question-text {
  font-weight: 600;
}

.question-text {
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
}

.question-number {
  font-weight: 700;
  min-width: 1.5rem;
}

.badge {
  font-size: 0.75rem;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge.locked {
  background: #fee2e2;
  color: #991b1b;
}

.badge.editable {
  background: #ecfdf5;
  color: #03643f;
}

.row-locked {
  background: #f9fafb;
}

.text-answer {
  padding: 0.75rem;
  text-align: start;
}

.text-input {
  width: 100%;
  border: 1px solid #cfd8e3;
  border-radius: 6px;
  padding: 0.5rem;
  font-size: 1rem;
  resize: vertical;
}

.text-value {
  font-weight: 600;
  color: #0f172a;
}

.choice-cell input {
  transform: scale(1.2);
}

.section-group {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid #e5e7eb;
}

.section-title {
  margin: 0 0 0.75rem;
  font-size: 1.2rem;
  color: #0f4c81;
}

.parent-group {
  margin-top: 1rem;
}

.parent-title {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  color: #374151;
}

.no-edit-note {
  margin-top: 1rem;
}

.form-actions {
  margin-top: 1.5rem;
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

@media (max-width: 600px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }

  th,
  td {
    font-size: 0.9rem;
  }
}