/* =============================================================================
   style.css — ELS 금융교육 웹사이트 커스텀 스타일
   역할: Tailwind CSS를 보완하는 컴포넌트별 커스텀 스타일 정의
   ============================================================================= */

/* =============================================================================
   CSS 변수 (디자인 토큰)
   ============================================================================= */
:root {
  --color-primary:  #2563EB;  /* 신뢰 블루 */
  --color-warning:  #F59E0B;  /* 주의 오렌지 */
  --color-danger:   #DC2626;  /* 경고 레드 */
  --color-success:  #16A34A;  /* 안전 그린 */
  --color-bg:       #F9FAFB;  /* 배경 밝은 회색 */
  --color-text:     #1F2937;  /* 텍스트 진한 회색 */

  --radius-card: 1.25rem;
  --shadow-card: 0 2px 20px rgba(0, 0, 0, 0.07);
  --transition-base: 0.2s ease;
}

/* =============================================================================
   공통 네비게이션 바
   ============================================================================= */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid #e2e8f0;
  box-shadow: 0 1px 12px rgba(0, 0, 0, 0.06);
}

.site-nav .nav-inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1.25rem;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

/* 로고 */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  flex-shrink: 0;
}
.nav-logo .logo-icon {
  width: 2rem;
  height: 2rem;
  background: linear-gradient(135deg, #4f46e5, #0ea5e9);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  line-height: 1;
}
.nav-logo .logo-text {
  font-size: 1.05rem;
  font-weight: 900;
  color: #0f172a;
  letter-spacing: -0.02em;
}
.nav-logo .logo-sub {
  font-size: 0.65rem;
  color: #64748b;
  font-weight: 600;
  margin-top: -2px;
  display: block;
}

/* 데스크탑 메뉴 */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-menu a {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.4rem 0.75rem;
  border-radius: 0.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: #475569;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}
.nav-menu a:hover {
  background: #f1f5f9;
  color: #0f172a;
}
.nav-menu a.active {
  background: #eef2ff;
  color: #4f46e5;
}

/* 시뮬레이터 강조 버튼 */
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.4rem 0.9rem;
  border-radius: 0.5rem;
  font-size: 0.85rem;
  font-weight: 800;
  background: #4f46e5;
  color: white !important;
  text-decoration: none;
  transition: background 0.15s, transform 0.1s;
}
.nav-cta:hover {
  background: #4338ca !important;
  color: white !important;
  transform: translateY(-1px);
}

/* 햄버거 버튼 (모바일) */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  border-radius: 0.4rem;
  transition: background 0.15s;
}
.nav-hamburger:hover { background: #f1f5f9; }
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: #475569;
  border-radius: 9999px;
  transition: all 0.25s;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 모바일 드롭다운 메뉴 */
.nav-mobile {
  display: none;
  position: absolute;
  top: 56px;
  left: 0;
  right: 0;
  background: white;
  border-bottom: 1px solid #e2e8f0;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  padding: 0.75rem 1.25rem 1rem;
  flex-direction: column;
  gap: 0.25rem;
}
.nav-mobile.open { display: flex; }

.nav-mobile a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 0.75rem;
  border-radius: 0.6rem;
  font-size: 0.9rem;
  font-weight: 700;
  color: #475569;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}
.nav-mobile a:hover { background: #f8fafc; color: #0f172a; }
.nav-mobile a.active { background: #eef2ff; color: #4f46e5; }
.nav-mobile .nav-cta {
  justify-content: center;
  margin-top: 0.5rem;
  padding: 0.65rem;
}

/* 반응형 */
@media (max-width: 768px) {
  .nav-menu { display: none; }
  .nav-hamburger { display: flex; }
  .site-nav { position: sticky; }
}

/* =============================================================================
   전역 기본값
   ============================================================================= */
html {
  scroll-behavior: smooth;
}

body {
  /* 한글 최적화 폰트 스택 */
  font-family: 'Pretendard', 'Noto Sans KR', -apple-system,
               BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--color-text);
  background-color: var(--color-bg);
}

/* =============================================================================
   헤더 — 네비게이션 pill 버튼
   ============================================================================= */
.nav-pill {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  color: white;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.375rem 0.875rem;
  border-radius: 9999px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  text-decoration: none;
  transition: background var(--transition-base), transform var(--transition-base);
}

.nav-pill:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-1px);
}

/* =============================================================================
   섹션 카드 — 스크롤 진입 애니메이션 포함
   ============================================================================= */
.section-card {
  background: white;
  border-radius: var(--radius-card);
  padding: 2rem 1.75rem;
  box-shadow: var(--shadow-card);

  /* 초기 상태: 보이지 않음 + 아래에서 올라옴 */
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

/* IntersectionObserver가 .visible 클래스를 추가하면 등장 */
.section-card.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 섹션 제목 */
.section-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-text);
  padding-bottom: 0.75rem;
  margin-bottom: 0.5rem;
  border-bottom: 3px solid var(--color-primary);
}

/* =============================================================================
   정의 박스 (Section 1 — 한 문장 요약)
   ============================================================================= */
.definition-box {
  background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%);
  border-left: 5px solid var(--color-primary);
  border-radius: 0.875rem;
  padding: 1.25rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: #1E40AF;
  line-height: 1.75;
  margin: 0;
}

/* =============================================================================
   정보 카드 (일반 info 박스)
   ============================================================================= */
.info-card {
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  border-radius: 0.75rem;
  padding: 1rem 1.25rem;
}

/* =============================================================================
   팁 박스 (꿀팁)
   ============================================================================= */
.tip-box {
  background: #FFFBEB;
  border: 1px solid #FDE68A;
  border-radius: 0.875rem;
  padding: 1rem 1.25rem;
  color: #92400E;
  font-size: 0.9rem;
  line-height: 1.65;
}

.tip-label {
  font-weight: 700;
  margin-right: 0.4rem;
}

/* =============================================================================
   경고 박스
   ============================================================================= */
.warning-box {
  background: #FEF2F2;
  border: 1px solid #FCA5A5;
  border-radius: 0.875rem;
  padding: 1rem 1.25rem;
  color: #991B1B;
  font-size: 0.9rem;
  line-height: 1.65;
}

/* =============================================================================
   비교 카드 (Section 2)
   ============================================================================= */
.comparison-card {
  border-radius: 1rem;
  padding: 1.5rem;
}

.comparison-card.safe {
  background: #F0FDF4;
  border: 2px solid #86EFAC;
}

.comparison-card.risky {
  background: #FFF5F5;
  border: 2px solid #FCA5A5;
}

/* 비교 행 */
.compare-row {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.badge-safe    { flex-shrink: 0; }
.badge-risk    { flex-shrink: 0; }
.badge-neutral { flex-shrink: 0; }

/* =============================================================================
   비유 박스 (Section 3 — 곰탱이)
   ============================================================================= */
.analogy-box {
  background: linear-gradient(135deg, #FFF7ED 0%, #FED7AA 100%);
  border-left: 5px solid var(--color-warning);
  border-radius: 1rem;
  padding: 1.5rem;
}

/* =============================================================================
   용어 카드 (Section 3 — 핵심 용어 4가지)
   ============================================================================= */
.term-card {
  background: white;
  border: 2px solid #E2E8F0;
  border-radius: 1rem;
  padding: 1.25rem;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.term-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.12);
}

/* 낙인 카드는 위험 색상 강조 */
.term-card.knock-in {
  border-color: #FECACA;
}

.term-card.knock-in:hover {
  border-color: var(--color-danger);
  box-shadow: 0 4px 14px rgba(220, 38, 38, 0.12);
}

.term-icon  { font-size: 2rem; margin-bottom: 0.5rem; }
.term-title { font-size: 1rem; font-weight: 700; color: var(--color-text); margin-bottom: 0.4rem; }
.term-desc  { font-size: 0.875rem; color: #4B5563; line-height: 1.65; }

/* =============================================================================
   시나리오 (Section 3)
   ============================================================================= */
.scenario {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
  border-radius: 1rem;
  padding: 1rem 1.25rem;
}

.scenario.success    { background: #F0FDF4; border: 1px solid #86EFAC; }
.scenario.danger-sc  { background: #FFF5F5; border: 1px solid #FCA5A5; }
.scenario.warning-sc { background: #FFFBEB; border: 1px solid #FDE68A; }

.scenario-icon { font-size: 1.75rem; flex-shrink: 0; }

/* =============================================================================
   위험 카드 (Section 4)
   ============================================================================= */
.risk-card {
  background: white;
  border: 2px solid #FECACA;
  border-radius: 1rem;
  padding: 1.25rem;
}

.risk-title {
  font-weight: 700;
  color: #B91C1C;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

/* =============================================================================
   유형 카드 (Section 5)
   ============================================================================= */
.type-card {
  background: white;
  border: 2px solid #BFDBFE;
  border-radius: 1rem;
  padding: 1.5rem;
  text-align: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.type-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.15);
}

.lizard-card {
  border-color: #FECACA;
}

.lizard-card:hover {
  box-shadow: 0 8px 24px rgba(220, 38, 38, 0.12);
}

.type-icon  { font-size: 2.5rem; margin-bottom: 0.75rem; }
.type-title { font-weight: 700; color: var(--color-text); margin-bottom: 0.5rem; }
.type-desc  { font-size: 0.875rem; color: #6B7280; line-height: 1.65; }

/* =============================================================================
   사례 통계 그리드 (Section 6 — 홍콩 ELS)
   ============================================================================= */
.case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

@media (min-width: 640px) {
  .case-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.case-stat {
  background: #FFF5F5;
  border: 2px solid #FECACA;
  border-radius: 1rem;
  padding: 1.25rem;
  text-align: center;
}

.case-number {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-danger);
}

.case-label {
  font-size: 0.75rem;
  color: #6B7280;
  margin-top: 0.25rem;
}

/* =============================================================================
   참고 자료 카드 (Section 10)
   ============================================================================= */
.ref-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: white;
  border: 2px solid #BFDBFE;
  border-radius: 1rem;
  padding: 1.25rem;
  text-decoration: none;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.ref-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.15);
}

.ref-icon {
  font-size: 1.875rem;
  flex-shrink: 0;
}

/* =============================================================================
   OX 퀴즈 (Section 7)
   ============================================================================= */
.quiz-item {
  border: 2px solid #E2E8F0;
  border-radius: 1rem;
  overflow: hidden;
  cursor: pointer;
  transition: border-color var(--transition-base);
}

.quiz-item:hover,
.quiz-item.expanded {
  border-color: var(--color-primary);
}

.quiz-question {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  background: white;
  user-select: none;
}

.quiz-number {
  background: var(--color-primary);
  color: white;
  font-weight: 700;
  font-size: 0.75rem;
  padding: 0.2rem 0.55rem;
  border-radius: 0.5rem;
  flex-shrink: 0;
}

.quiz-text {
  flex: 1;
  font-size: 0.93rem;
  color: var(--color-text);
  font-weight: 500;
  line-height: 1.5;
}

.quiz-toggle-icon {
  color: #9CA3AF;
  font-size: 0.75rem;
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.quiz-item.expanded .quiz-toggle-icon {
  transform: rotate(180deg);
}

.quiz-answer {
  padding: 1rem 1.25rem;
  background: #F8FAFC;
  border-top: 1px solid #E2E8F0;
}

.quiz-answer-badge {
  display: inline-block;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.2rem 0.875rem;
  border-radius: 9999px;
  margin-bottom: 0.5rem;
}

.quiz-answer-badge.correct   { background: #DCFCE7; color: #166534; }
.quiz-answer-badge.incorrect { background: #FEE2E2; color: #991B1B; }

.quiz-explanation {
  font-size: 0.875rem;
  color: #4B5563;
  line-height: 1.65;
}

/* =============================================================================
   OX 퀴즈 — 리뉴얼 (다크 슬라이드 위 게임형 UI)
   ============================================================================= */

/* 헤더: 진행 표시 */
.qz-header {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 1rem;
}
.qz-counter {
  font-size: 0.75rem; font-weight: 800; color: rgba(255,255,255,0.75);
  white-space: nowrap; flex-shrink: 0;
}
.qz-prog-bg {
  flex: 1; height: 6px; background: rgba(255,255,255,0.2);
  border-radius: 9999px; overflow: hidden;
}
.qz-prog-fill {
  height: 100%; background: linear-gradient(90deg, #a78bfa, #38bdf8);
  border-radius: 9999px; transition: width 0.45s cubic-bezier(.4,0,.2,1);
}
.qz-score-badge {
  font-size: 0.75rem; font-weight: 800; color: rgba(255,255,255,0.75);
  white-space: nowrap; flex-shrink: 0;
}

/* 질문 카드 */
.qz-q-card {
  background: white; border-radius: 1.25rem;
  padding: 1.25rem 1.5rem; margin-bottom: 0.875rem;
  box-shadow: 0 6px 24px rgba(0,0,0,0.3);
  text-align: center;
  animation: qzCardIn 0.3s cubic-bezier(.4,0,.2,1);
}
@keyframes qzCardIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
.qz-q-label {
  font-size: 0.65rem; font-weight: 900; color: #4f46e5;
  background: #eef2ff; display: inline-block;
  padding: 0.2rem 0.65rem; border-radius: 0.35rem;
  margin-bottom: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase;
}
.qz-q-text {
  font-size: 0.97rem; font-weight: 700; color: #1e293b;
  line-height: 1.6; word-break: keep-all;
}

/* O / X 버튼 */
.qz-actions {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 0.75rem; margin-bottom: 0.75rem;
}
.qz-btn-o, .qz-btn-x {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 0.35rem;
  padding: 1rem 0; border-radius: 1rem; border: 2px solid;
  cursor: pointer; transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
  font-weight: 900; background: transparent;
}
.qz-btn-o {
  border-color: rgba(34,197,94,0.5); color: #86efac;
}
.qz-btn-o:hover:not(:disabled) {
  background: rgba(34,197,94,0.25); transform: translateY(-3px);
  box-shadow: 0 6px 18px rgba(34,197,94,0.35);
}
.qz-btn-x {
  border-color: rgba(239,68,68,0.45); color: #fca5a5;
}
.qz-btn-x:hover:not(:disabled) {
  background: rgba(239,68,68,0.25); transform: translateY(-3px);
  box-shadow: 0 6px 18px rgba(239,68,68,0.35);
}
.qz-btn-icon  { font-size: 2rem; line-height: 1; }
.qz-btn-label { font-size: 0.85rem; }

.qz-btn-o:disabled, .qz-btn-x:disabled { cursor: default; }
.qz-btn-correct {
  background: rgba(34,197,94,0.35) !important;
  border-color: #22c55e !important;
  box-shadow: 0 0 0 3px rgba(34,197,94,0.4) !important;
  transform: scale(1.03) !important; color: #bbf7d0 !important;
}
.qz-btn-wrong { opacity: 0.3 !important; transform: scale(0.97) !important; }

/* 피드백 영역 */
.qz-fb {
  background: rgba(255,255,255,0.1); border-radius: 1rem;
  padding: 0.875rem 1rem; border: 1px solid rgba(255,255,255,0.15);
  animation: qzFbIn 0.25s ease;
}
@keyframes qzFbIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.qz-fb-badge {
  display: inline-block; padding: 0.25rem 0.875rem;
  border-radius: 9999px; font-size: 0.82rem; font-weight: 800;
  margin-bottom: 0.5rem;
}
.qz-fb-right { background: #dcfce7; color: #166534; }
.qz-fb-wrong { background: #fee2e2; color: #991b1b; }
.qz-fb-explain {
  font-size: 0.82rem; color: rgba(255,255,255,0.82);
  line-height: 1.65; margin-bottom: 0.875rem; word-break: keep-all;
}
.qz-next-btn {
  width: 100%; padding: 0.6rem; background: white; color: #4f46e5;
  border: none; border-radius: 0.75rem; font-size: 0.88rem;
  font-weight: 800; cursor: pointer; transition: background 0.15s, transform 0.15s;
}
.qz-next-btn:hover { background: #eef2ff; transform: translateY(-1px); }

/* 최종 결과 화면 */
.qz-final-wrap {
  text-align: center; padding: 0.5rem 0;
  animation: qzCardIn 0.35s ease;
}
.qz-final-emoji { font-size: 3.5rem; display: block; margin-bottom: 0.5rem; }
.qz-final-score {
  font-size: 3.25rem; font-weight: 900; color: white; line-height: 1;
}
.qz-final-score span { font-size: 1.5rem; color: rgba(255,255,255,0.5); }
.qz-final-prog-bg {
  height: 8px; background: rgba(255,255,255,0.2);
  border-radius: 9999px; overflow: hidden; margin: 0.875rem 0;
}
.qz-final-prog-fill {
  height: 100%; background: linear-gradient(90deg, #a78bfa, #38bdf8);
  border-radius: 9999px; transition: width 0.7s cubic-bezier(.4,0,.2,1);
}
.qz-final-msg {
  font-size: 0.9rem; color: rgba(255,255,255,0.78);
  margin-bottom: 1.25rem; line-height: 1.55;
}
.qz-retry-btn {
  padding: 0.65rem 2rem; background: white; color: #4f46e5;
  border: none; border-radius: 9999px; font-size: 0.9rem;
  font-weight: 800; cursor: pointer;
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
  transition: background 0.15s, transform 0.15s;
}
.qz-retry-btn:hover { background: #eef2ff; transform: translateY(-1px); }

/* =============================================================================
   체크리스트 (Section 8)
   ============================================================================= */
.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  background: #F8FAFF;
  border: 2px solid #DBEAFE;
  border-radius: 0.875rem;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}

.checklist-item:hover {
  border-color: #93C5FD;
  background: #EFF6FF;
  box-shadow: 0 2px 12px rgba(37, 99, 235, 0.08);
}

/* 체크 완료 상태 */
.checklist-item:has(.checklist-checkbox:checked) {
  background: #F0FDF4;
  border-color: #86EFAC;
}

.checklist-item:has(.checklist-checkbox:checked) .checklist-text {
  color: #166534;
  text-decoration: line-through;
  text-decoration-color: #4ADE80;
  opacity: 0.8;
}

.checklist-checkbox {
  width: 1.25rem;
  height: 1.25rem;
  accent-color: #16A34A;
  flex-shrink: 0;
  cursor: pointer;
  margin-top: 0.1rem;
}

.checklist-text {
  font-size: 0.9rem;
  color: #1E40AF;
  font-weight: 600;
  line-height: 1.55;
  pointer-events: none;
  transition: color 0.2s, opacity 0.2s;
}

/* =============================================================================
   FAQ 아코디언 (Section 9)
   ============================================================================= */
.faq-item {
  border: 2px solid #E2E8F0;
  border-radius: 0.875rem;
  overflow: hidden;
  transition: border-color var(--transition-base);
}

.faq-item.expanded {
  border-color: var(--color-primary);
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 1rem 1.25rem;
  background: white;
  text-align: left;
  cursor: pointer;
  border: none;
  outline: none;
  transition: background var(--transition-base);
}

.faq-question:hover {
  background: #F8FAFC;
}

.faq-q-mark {
  background: var(--color-primary);
  color: white;
  font-weight: 700;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.faq-question-text {
  flex: 1;
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.93rem;
}

.faq-toggle-icon {
  color: #9CA3AF;
  font-size: 0.75rem;
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.faq-item.expanded .faq-toggle-icon {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 1rem 1.25rem;
  background: #F8FAFC;
  border-top: 1px solid #E2E8F0;
}

.faq-answer-text {
  font-size: 0.875rem;
  color: #4B5563;
  line-height: 1.7;
}

/* hidden 유틸리티 (Tailwind hidden과 동일) */
.hidden { display: none !important; }

/* =============================================================================
   챗봇 — 전체 레이아웃
   ============================================================================= */
.chatbot-window {
  position: fixed;
  bottom: 6.5rem;
  right: 1.5rem;
  width: 22rem;
  max-height: 85vh;
  background: white;
  border-radius: 1.25rem;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.18);
  border: 1px solid #E2E8F0;
  display: none;           /* 기본 숨김 */
  flex-direction: column;
  overflow: hidden;
  z-index: 50;
  animation: chatSlideUp 0.28s ease;
}

/* JS에서 chatbot-visible 클래스를 추가하면 표시 */
.chatbot-window.chatbot-visible {
  display: flex;
}

@keyframes chatSlideUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* 챗봇 헤더 */
.chatbot-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-primary);
  color: white;
  padding: 0.875rem 1rem;
  flex-shrink: 0;
}

/* API 설정 패널 */
.chatbot-settings-panel {
  background: #EFF6FF;
  border-bottom: 1px solid #BFDBFE;
  padding: 0.875rem 1rem;
  flex-shrink: 0;
}

.chatbot-input-field {
  width: 100%;
  font-size: 0.85rem;
  border: 1px solid #CBD5E1;
  border-radius: 0.625rem;
  padding: 0.45rem 0.75rem;
  outline: none;
  transition: border-color var(--transition-base);
  display: block;
  box-sizing: border-box;
}

.chatbot-input-field:focus {
  border-color: var(--color-primary);
}

.chatbot-save-btn {
  width: 100%;
  background: var(--color-primary);
  color: white;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.45rem 0;
  border-radius: 0.625rem;
  border: none;
  cursor: pointer;
  transition: background var(--transition-base);
}

.chatbot-save-btn:hover {
  background: #1D4ED8;
}

/* 메시지 영역 */
.chatbot-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  background: #F8FAFC;
  min-height: 180px;
  max-height: 340px;
}

/* 스크롤바 스타일 */
.chatbot-messages::-webkit-scrollbar { width: 4px; }
.chatbot-messages::-webkit-scrollbar-track { background: #F1F5F9; }
.chatbot-messages::-webkit-scrollbar-thumb { background: #CBD5E1; border-radius: 2px; }

/* 봇 말풍선 */
.bot-message {
  background: white;
  border: 1px solid #E2E8F0;
  border-radius: 1rem;
  border-bottom-left-radius: 0.25rem;
  padding: 0.75rem 1rem;
  max-width: 87%;
  align-self: flex-start;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.07);
}

/* 사용자 말풍선 */
.user-message {
  background: var(--color-primary);
  border-radius: 1rem;
  border-bottom-right-radius: 0.25rem;
  padding: 0.75rem 1rem;
  max-width: 87%;
  align-self: flex-end;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

.user-message p {
  color: white !important;
}

/* 타이핑 인디케이터 (로딩 스피너) */
.typing-indicator {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0;
}

.typing-indicator span {
  width: 0.5rem;
  height: 0.5rem;
  background: #93C5FD;
  border-radius: 50%;
  animation: typingBounce 1.2s infinite ease-in-out;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
  0%, 60%, 100% { transform: translateY(0); }
  30%           { transform: translateY(-7px); }
}

/* 빠른 질문 버튼 영역 */
.chatbot-quick-area {
  padding: 0.5rem 0.75rem;
  background: white;
  border-top: 1px solid #F1F5F9;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  flex-shrink: 0;
}

/* 빠른 질문 버튼 */
.quick-question-btn {
  background: #EFF6FF;
  color: var(--color-primary);
  border: 1px solid #BFDBFE;
  border-radius: 9999px;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--transition-base), transform var(--transition-base);
}

.quick-question-btn:hover {
  background: #DBEAFE;
  transform: translateY(-1px);
}

/* 입력 영역 */
.chatbot-input-area {
  display: flex;
  gap: 0.5rem;
  padding: 0.75rem;
  background: white;
  border-top: 1px solid #E2E8F0;
  flex-shrink: 0;
}

.chatbot-text-input {
  flex: 1;
  font-size: 0.875rem;
  border: 1.5px solid #E2E8F0;
  border-radius: 0.875rem;
  padding: 0.5rem 0.875rem;
  outline: none;
  transition: border-color var(--transition-base);
}

.chatbot-text-input:focus {
  border-color: var(--color-primary);
}

.chatbot-send-btn {
  background: var(--color-primary);
  color: white;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: 0.875rem;
  border: none;
  cursor: pointer;
  transition: background var(--transition-base), transform var(--transition-base);
  flex-shrink: 0;
}

.chatbot-send-btn:hover {
  background: #1D4ED8;
  transform: translateY(-1px);
}

.chatbot-send-btn:disabled {
  background: #93C5FD;
  cursor: not-allowed;
  transform: none;
}

/* =============================================================================
   모바일 반응형 보완
   ============================================================================= */
@media (max-width: 640px) {
  .section-card {
    padding: 1.5rem 1rem;
  }

  .section-title {
    font-size: 1.25rem;
  }

  /* 챗봇 창을 모바일에서 전체 너비에 가깝게 */
  .chatbot-window {
    right: 0.75rem;
    left: 0.75rem;
    width: auto;
    bottom: 5.5rem;
  }
}

@media (min-width: 768px) {
  .chatbot-window {
    width: 24rem;
  }
}