/* ================= FONT ================= */
    @font-face {
      font-family: 'Pretendard';
      src: url('https://cdn.jsdelivr.net/gh/Project-Noonnu/noonfonts_2107@1.1/Pretendard-Regular.woff') format('woff');
      font-weight: 400;
      font-display: swap;
    }
    @font-face {
      font-family: 'Pretendard';
      src: url('https://cdn.jsdelivr.net/gh/Project-Noonnu/noonfonts_2107@1.1/Pretendard-Bold.woff') format('woff');
      font-weight: 700;
      font-display: swap;
    }

    /* ================= VARIABLES ================= */
    :root {
      --bg: #FFFFFF;
      --section-bg: #F8F6F2;
      --card-bg: #FFFFFF;
      --blue: #FF385C; /* 에어비앤비 포인트 컬러 */
      --line: #EBEBEB;
      --text: #222222;
      --sub: #717171; /* 부드러운 텍스트 색상 */
      --shadow: 0 6px 16px rgba(0,0,0,0.12);
      --container: 1040px;
    }

    /* ================= RESET & GLOBAL ================= */
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: 'Pretendard', -apple-system, sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    h1, h2, h3, h4, p { margin: 0; }
    img { max-width: 100%; height: auto; border-radius: 8px; }
    .k-wrap { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
    .section-padding { padding: 80px 0; }
    .section-title { font-size: 28px; font-weight: 700; margin-bottom: 24px; }
    
    .font-regular { font-weight: 400; color: var(--sub); }

    /* ================= COMPONENTS ================= */
    .btn-primary {
      background: var(--blue);
      color: white;
      padding: 14px 24px;
      border-radius: 8px;
      font-weight: 700;
      text-align: center;
      display: inline-block;
      cursor: pointer;
      border: none;
      font-size: 16px;
      transition: background 0.2s;
    }
    .btn-primary:hover { background: #E31C5F; }

    .btn-outline {
      background: transparent;
      color: var(--text);
      padding: 10px 20px;
      border-radius: 8px;
      font-weight: 600;
      text-align: center;
      display: inline-block;
      cursor: pointer;
      border: 1px solid var(--text);
      font-size: 14px;
    }

    .btn-kakao {
      background: #FEE500;
      color: #000000;
      padding: 12px 24px;
      border-radius: 8px;
      font-weight: 700;
      text-align: center;
      display: inline-block;
      cursor: pointer;
      border: none;
      font-size: 15px;
      transition: background 0.2s;
      width: 100%;
      margin-top: 16px;
    }
    .btn-kakao:hover { background: #F4DC00; }

    /* ================= STICKY BAR (Mobile) ================= */
    .sticky-bar {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: white;
      border-top: 1px solid var(--line);
      padding: 16px 24px;
      z-index: 1000;
      justify-content: space-between;
      align-items: center;
    }
    
    .mobile-schedule-section { display: none; }

    /* ================= 모바일 반응형 설정 (미디어 쿼리) ================= */
    @media (max-width: 992px) {
      .sticky-bar { display: flex; }
      .section-padding { padding: 50px 0; }
      .reservation-card { display: none; }
      .hero-content-wrapper { flex-direction: column; }
      .hero-text h1 { font-size: 26px; }

      /* 모바일 히어로 그리드 스타일 */
      .hero-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr); /* 2열 */
        gap: 8px; /* 간격 */
        margin-bottom: 32px;
      }

      .hero-grid img {
        width: 100%;
        height: 100%; 
        object-fit: cover;
        border-radius: 12px; 
      }

      /* 첫 번째 이미지 (.main-img) */
      .hero-grid img.main-img {
        grid-column: span 2; /* 2열 전체 차지 */
        aspect-ratio: 16 / 9; /* 가로로 넓게 */
      }

      /* 하단 두 이미지 (.sub-img) */
      .hero-grid img.sub-img {
        grid-column: span 1; /* 각각 1열씩 차지 */
        aspect-ratio: 4 / 5; /* 세로로 살짝 긴 직사각형 */
      }
      
      .mobile-schedule-section {
        display: block;
        padding-bottom: 40px;
        margin-top: -20px;
        border-bottom: 1px solid var(--line);
      }
    }

    /* ================= PC 환경 스타일 ================= */
    .hero { padding-top: 40px; padding-bottom: 60px; }
    .hero-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      grid-template-rows: repeat(2, 200px);
      gap: 8px;
      margin-bottom: 32px;
      border-radius: 12px;
      overflow: hidden;
    }
    .hero-grid .main-img { grid-row: span 2; width: 100%; height: 100%; object-fit: cover; border-radius: 0; }
    .hero-grid .sub-img { width: 100%; height: 100%; object-fit: cover; border-radius: 0; }
    
    .hero-content-wrapper { display: flex; justify-content: space-between; align-items: flex-start; gap: 40px; }
    .hero-text { flex: 1; }
    .hero-text h1 { font-size: 32px; font-weight: 700; margin-bottom: 24px; }
    
    .hero-text .desc-wrap { font-size: 16px; color: var(--text); line-height: 1.7; word-break: keep-all; }
    .hero-text .desc-wrap p { margin-bottom: 20px; }
    .hero-text .desc-wrap p:last-child { margin-bottom: 0; }
    .hero-text .desc-wrap strong { font-weight: 700; color: var(--text); }
    .hero-text .highlight-quote { font-weight: 700; color: var(--blue); font-size: 18px; margin-top: 24px; }

    /* ================= PC 예약 카드 ================= */
    .reservation-card {
      width: 380px;
      background: white;
      border: 1px solid var(--line);
      border-radius: 12px;
      padding: 24px;
      box-shadow: var(--shadow);
      position: sticky;
      top: 40px;
    }
    .res-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
    .res-price-info { display: flex; flex-direction: column; }
    .res-price { font-size: 24px; font-weight: 700; color: var(--text); line-height: 1.2; }
    .res-price span { font-size: 15px; font-weight: 400; color: var(--sub); }
    .res-sub-text { font-size: 13px; margin-top: 4px; font-weight: 500; }
    .res-sub-text a { color: var(--blue); text-decoration: underline; }
    
    .res-details { border: 1px solid #B0B0B0; border-radius: 8px; overflow: hidden; }
    .res-item { padding: 16px; font-size: 14px; }
    .res-item strong { display: block; font-size: 12px; text-transform: uppercase; color: var(--text); margin-bottom: 12px; }

    .schedule-wrap { margin-top: 8px; }
    .schedule-card { background-color: #F8F9FA; border: 1px solid #EAEAEA; border-radius: 8px; padding: 16px; margin-bottom: 12px; }
    .schedule-card:last-child { margin-bottom: 0; }
    .schedule-month { font-size: 14px; font-weight: 700; color: var(--text); margin-bottom: 10px; display: flex; justify-content: space-between; align-items: center; }
    .schedule-month span { font-size: 12px; font-weight: 400; color: var(--sub); }
    .schedule-detail { font-size: 13px; color: var(--sub); display: flex; justify-content: space-between; margin-bottom: 4px; }
    .schedule-detail .highlight-text { color: var(--text); font-weight: 400; }
    .schedule-time { font-size: 11px; text-align: right; color: #999; margin-top: -2px; margin-bottom: 8px; }
    .schedule-time:last-child { margin-bottom: 0; }

    .res-cancellation-summary { margin-top: 16px; text-align: center; font-size: 13px; color: var(--sub); line-height: 1.6; }
    .res-cancellation-summary span { color: var(--text); font-weight: 600; }

    /* ================= 진행 방식 섹션 ================= */
    .what-youll-do { background: var(--bg); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
    .do-banner-img { width: 100%; height: auto; border-radius: 12px; object-fit: cover; box-shadow: var(--shadow); }

    /* ================= 함께 읽을 책 섹션 ================= */
    .books { background: var(--bg); }
    .books-header { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 0px; }
    .book-slider { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; gap: 20px; padding-bottom: 24px; }
    .book-slider::-webkit-scrollbar { height: 8px; }
    .book-slider::-webkit-scrollbar-track { background: #f1f1f1; border-radius: 4px; }
    .book-slider::-webkit-scrollbar-thumb { background: #ccc; border-radius: 4px; }
    .book-slider::-webkit-scrollbar-thumb:hover { background: #aaa; }

    .book-card { flex: 0 0 calc(25% - 15px); scroll-snap-align: start; background: var(--bg); border: 1px solid var(--line); border-radius: 12px; padding: 24px 20px; display: flex; flex-direction: column; align-items: center; transition: transform 0.2s, box-shadow 0.2s; }
    .book-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
    .book-card .month-badge { display: inline-block; background: var(--section-bg); color: var(--text); font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 4px; margin-bottom: 16px; }
    .book-card img { width: 140px; height: auto; aspect-ratio: 820 / 1200; object-fit: cover; margin: 0 auto 20px; box-shadow: 0 4px 10px rgba(0,0,0,0.1); }
    .book-card h4 { font-size: 17px; margin-bottom: 8px; font-weight: 700; color: var(--text); width: 100%; text-align: center; }
    .book-card p { font-size: 14px; color: var(--sub); margin-bottom: 20px; line-height: 1.5; word-break: keep-all; text-align: left; width: 100%; flex-grow: 1;}

    .btn-ebook { background: #F0F2F5; color: var(--text); padding: 10px; border-radius: 6px; font-size: 13px; font-weight: 600; border: 1px solid #E2E2E2; cursor: pointer; transition: background 0.2s; width: 100%; margin-top: auto; text-decoration: none; display: block; text-align: center; box-sizing: border-box; }
    .btn-ebook:hover { background: #E2E2E2; }

    @media (max-width: 992px) { .book-card { flex: 0 0 calc(33.333% - 13.33px); } }
    @media (max-width: 768px) { .book-card { flex: 0 0 calc(50% - 10px); } }
    @media (max-width: 480px) { .book-card { flex: 0 0 75%; } }

    /* ================= 리더 소개 섹션 ================= */
    .leader-about { background: #FFFFFF; padding: 80px 0; border-top: 1px solid var(--line); }
    .leader-content { display: flex; gap: 48px; align-items: flex-start; }
    .leader-left { flex: 0 0 auto; display: flex; flex-direction: column; align-items: flex-start; }
    
    .leader-card { 
      background: white; 
      border: 1px solid #EBEBEB; 
      border-radius: 16px; 
      padding: 32px 24px; 
      width: 280px; 
      text-align: center; 
      box-shadow: 0 6px 16px rgba(0,0,0,0.06); 
      margin-top: 56px; 
    }
    .leader-card img { width: 120px; height: 120px; border-radius: 50%; object-fit: cover; margin: 0 auto 20px; }
    .leader-name { font-size: 20px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
    .leader-info-short { font-size: 14px; color: var(--sub); line-height: 1.4; }

    .leader-right { flex: 1 1 auto; }
    .leader-right h3 { font-size: 28px; font-weight: 700; color: var(--text); margin-bottom: 24px; }
    .leader-right p { font-size: 16px; line-height: 1.8; margin-bottom: 24px; word-break: keep-all; }
    .leader-right p strong { font-weight: 700; color: var(--text); }

    @media (max-width: 768px) {
      .leader-content { flex-direction: column; align-items: center; gap: 32px; }
      .leader-left { align-items: center; width: 100%; }
      .leader-card { width: 100%; max-width: 320px; margin-top: 0; }
    }

    /* ================= 참여자 후기 섹션 ================= */
    .testimonials { background: var(--bg); border-top: 1px solid var(--line); }
    .review-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
    .review-card { padding: 24px; border: 1px solid var(--line); border-radius: 12px; }
    .review-user { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
    .review-user img { width: 48px; height: 48px; border-radius: 50%; object-fit: cover; }
    .review-user h4 { font-size: 16px; font-weight: 700; }
    .review-user span { font-size: 13px; color: var(--sub); }
    .stars { color: var(--blue); margin-bottom: 12px; font-size: 14px; letter-spacing: 2px; }
    .review-text { font-size: 15px; color: var(--text); word-break: keep-all; }
    
    @media (max-width: 768px) { .review-grid { grid-template-columns: 1fr; } }

    /* ================= 인증 전문가 리더 섹션 ================= */
    .quality-badge { 
      background: var(--section-bg); 
      text-align: center; 
      border-top: 1px solid var(--line);
    }
    .badge-container { 
      max-width: 800px; 
      margin: 0 auto; 
    }
    .badge-icon {
      font-size: 28px;
      margin-bottom: 8px;
      line-height: 1;
    }
    /* 타이틀을 크고 굵게 변경 */
    .badge-title { 
      font-size: 18px; 
      font-weight: 700; 
      color: var(--text); 
      margin-bottom: 8px; 
    }
    /* 본문 내용을 살짝 작고 부드럽게 변경 */
    .badge-desc { 
      font-size: 14px; 
      font-weight: 400; 
      color: var(--sub); 
      line-height: 1.6; 
      word-break: keep-all; 
      margin: 0; 
    }

    /* ================= FOOTER ================= */
    footer { text-align: center; padding: 40px 24px; border-top: 1px solid var(--line); background: var(--bg); }
    .footer-logo { margin-bottom: 16px; font-size: 24px;}
    .footer-text { font-size: 13px; color: #999; }