.card,
.setting-card {
  border: 1px solid #e5e7eb;
  background: #ffffff;
}

.card {
  margin-bottom: 18px;
  padding: 24px;
  border-radius: 22px;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.04);
}

.question-card {
  background: linear-gradient(180deg, #ffffff 0%, #fcfcff 100%);
}

.answer-card {
  background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
}

.setting-card {
  padding: 16px;
  border-radius: 18px;
  background: #fafafa;
}

.setting-card > label {
  display: block;
  margin-bottom: 10px;
  font-size: 14px;
  font-weight: 700;
  color: #374151;
}

.topbar-select label {
  font-size: 13px;
  font-weight: 800;
  color: #6b7280;
  white-space: nowrap;
}

.topbar-select select {
  width: 220px;
}

.inline {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: #374151;
}

select,
input[type="checkbox"] {
  cursor: pointer;
}

select {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid #d1d5db;
  border-radius: 12px;
  background: #ffffff;
  color: #111827;
}

.pill {
  padding: 10px 14px;
  border: 1px solid #e5e7eb;
  border-radius: 999px;
  background: #f3f4f6;
  font-size: 14px;
  font-weight: 700;
  color: #374151;
}

.progress-pill {
  width: 100%;
  padding: 14px 16px;
  border-radius: 18px;
  background: #f8fbff;
}

.progress-pill-label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 800;
  color: #1f2937;
}

.progress-pill-track {
  display: block;
  width: 100%;
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: #dbeafe;
}

.progress-pill-fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, #60a5fa 0%, #2563eb 100%);
  transition: width 0.2s ease;
}

.label {
  margin-bottom: 8px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: #6b7280;
}

.question-title {
  margin-bottom: 12px;
  font-size: 18px;
  font-weight: 800;
  color: #374151;
}

.question-title.empty-warning {
  color: #b91c1c;
}

.meaning {
  font-size: 28px;
  font-weight: 800;
  line-height: 1.55;
  color: #111827;
  word-break: keep-all;
}

.meaning.empty-warning {
  color: #b91c1c;
}

.hint {
  margin-top: 14px;
  font-size: 14px;
  color: #6b7280;
}

.hint.empty-warning-sub {
  color: #dc2626;
}

textarea {
  width: 100%;
  min-height: 130px;
  padding: 16px;
  border: 1.5px solid #d1d5db;
  border-radius: 16px;
  outline: none;
  background: #ffffff;
  font-size: 18px;
  line-height: 1.6;
  color: #111827;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

textarea:focus {
  border-color: #60a5fa;
  box-shadow: 0 0 0 4px rgba(96, 165, 250, 0.14);
}

button {
  padding: 13px 18px;
  border-radius: 14px;
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.08s ease, opacity 0.2s ease, box-shadow 0.2s ease;
}

button:hover {
  opacity: 0.96;
}

button:active {
  transform: translateY(1px);
}

.primary {
  background: #2563eb;
  color: #ffffff;
  box-shadow: 0 10px 18px rgba(37, 99, 235, 0.2);
}

.secondary {
  background: #f3f4f6;
  color: #111827;
}

.danger {
  background: #fee2e2;
  color: #b91c1c;
  border: 1px solid #fca5a5;
  box-shadow: 0 10px 18px rgba(239, 68, 68, 0.12);
}

.danger:hover {
  background: #fecaca;
}

.success {
  background: #10b981;
  color: #ffffff;
  box-shadow: 0 10px 18px rgba(16, 185, 129, 0.18);
}

.nav-btn {
  background: #e0f2fe;
  border: 1px solid #7dd3fc;
  color: #0369a1;
}

.nav-btn:hover {
  background: #bae6fd;
}

/* disabled */
.nav-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.result {
  display: none;
  margin-top: 18px;
  padding: 18px;
  border-radius: 18px;
  line-height: 1.7;
}

.result.show {
  display: block;
}

.result.correct {
  border: 1px solid #a7f3d0;
  background: #ecfdf5;
  color: #065f46;
}

.result.wrong {
  border: 1px solid #fecaca;
  background: #fef2f2;
  color: #991b1b;
}

.result-title {
  margin-bottom: 8px;
  font-size: 20px;
  font-weight: 900;
}

.answer-box {
  margin-top: 10px;
  padding: 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.7);
  color: #111827;
  font-weight: 600;
}

.sub {
  margin-top: 8px;
  font-size: 14px;
  opacity: 0.9;
}

.footer-note {
  margin-top: 14px;
  font-size: 13px;
  color: #6b7280;
}

.part-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  border: none;
  font-weight: 700;
  cursor: pointer;
  background: rgba(255,255,255,0.25);
  color: white;
}

.part-tab.active {
  background: white;
  color: #2563eb;
}

.part-tab.is-coming-soon {
  cursor: not-allowed;
  opacity: 0.72;
  background: rgba(15, 23, 42, 0.18);
  color: rgba(255, 255, 255, 0.92);
}

.part-tab.is-coming-soon::after {
  content: attr(data-status);
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.92);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.part-tab:disabled:hover {
  opacity: 0.72;
}