/* ============================================
   COMPATIBILITY LAYER
   Maps old bh-* class names to v3.0 design
   ============================================ */

/* Section */
.bh-section{padding:72px 0}
.bh-section--gray{background:var(--g50)}
.bh-section--dark{background:var(--navy);color:#fff}
.bh-section--orange-light{background:var(--primary-50)}

/* Container */
.bh-container{max-width:var(--maxw,1260px);margin:0 auto;padding:0 24px}

/* Section Title */
.bh-section-title{text-align:center;margin-bottom:44px}
.bh-section-title__sub{display:inline-block;font-size:11px;font-weight:700;letter-spacing:2.5px;color:var(--primary);text-transform:uppercase;margin-bottom:6px}
.bh-section-title__main{font-family:var(--serif,'Noto Serif KR',serif);font-size:30px;font-weight:700;color:var(--black);line-height:1.35;margin-bottom:8px}
.bh-section-title__desc{font-size:14px;color:var(--g500);max-width:480px;margin:0 auto}

/* Buttons */
.bh-btn{display:inline-flex;align-items:center;justify-content:center;gap:5px;font-weight:600;transition:all .2s;white-space:nowrap;border-radius:var(--r,6px);padding:10px 22px;font-size:14px}
.bh-btn--primary{background:var(--primary);color:#fff}
.bh-btn--primary:hover{background:var(--primary-dk);color:#fff;transform:translateY(-1px);box-shadow:0 4px 14px rgba(232,96,28,.25)}
.bh-btn--outline{border:1.5px solid var(--primary);color:var(--primary);background:transparent}
.bh-btn--outline:hover{background:var(--primary);color:#fff}
.bh-btn--dark{background:var(--navy);color:#fff}
.bh-btn--dark:hover{background:#0f172a;color:#fff}
.bh-btn--green{background:var(--green);color:#fff}
.bh-btn--lg{padding:13px 30px;font-size:15px}
.bh-btn--block{width:100%}

/* Page Header */
.bh-page-header{background:linear-gradient(135deg,#1a1a1a,#2a2a2a);color:#fff;padding:36px 0;text-align:center}
.bh-page-header__title{font-family:var(--serif,'Noto Serif KR',serif);font-size:26px;font-weight:700;margin-bottom:3px}
.bh-page-header__breadcrumb{font-size:12px;color:rgba(255,255,255,.35)}
.bh-page-header__breadcrumb a{color:rgba(255,255,255,.35)}
.bh-page-header__breadcrumb a:hover{color:var(--primary)}

/* Course Cards */
.bh-courses{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px}
.bh-course-card{background:#fff;border:1px solid var(--g200);border-radius:var(--rl,12px);overflow:hidden;transition:all .25s;display:flex;flex-direction:column}
.bh-course-card:hover{border-color:var(--primary);box-shadow:var(--sh-md)}
.bh-course-card__thumb{aspect-ratio:16/9;background:var(--g100);display:flex;align-items:center;justify-content:center;color:var(--g300);font-size:40px;position:relative}
.bh-course-card__thumb-badge{position:absolute;top:10px;left:10px;background:var(--primary);color:#fff;padding:3px 10px;border-radius:var(--pill,50px);font-size:11px;font-weight:700}
.bh-course-card__body{padding:20px;flex:1;display:flex;flex-direction:column}
.bh-course-card__category{font-size:12px;color:var(--primary);font-weight:600;margin-bottom:4px}
.bh-course-card__title{font-size:17px;font-weight:700;color:var(--black);margin-bottom:6px;line-height:1.3}
.bh-course-card__title a{color:inherit}
.bh-course-card__title a:hover{color:var(--primary)}
.bh-course-card__desc{font-size:13px;color:var(--g500);margin-bottom:14px;flex:1}
.bh-course-card__meta{display:flex;align-items:center;gap:12px;padding-top:14px;border-top:1px solid var(--g200);font-size:12px;color:var(--g500);flex-wrap:wrap}
.bh-course-card__price{margin-left:auto;font-size:16px;font-weight:800;color:var(--black)}
.bh-course-card__price small{font-size:12px;font-weight:400;color:var(--g400);text-decoration:line-through;display:block}

/* Benefits */
.bh-benefits{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px}
.bh-benefit-card{background:#fff;border:1px solid var(--g200);border-radius:var(--rl,12px);padding:26px 18px;text-align:center;transition:all .25s}
.bh-benefit-card:hover{border-color:var(--primary);box-shadow:var(--sh-md);transform:translateY(-2px)}
.bh-benefit-card__icon{width:48px;height:48px;background:var(--primary-lt);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-size:22px}
.bh-benefit-card__title{font-size:15px;font-weight:700;color:var(--black);margin-bottom:4px}
.bh-benefit-card__desc{font-size:13px;color:var(--g600);line-height:1.5}

/* CTA Banner */
.bh-cta-banner{background:linear-gradient(135deg,var(--primary),#F08C4C);border-radius:var(--rxl,16px);padding:44px 32px;text-align:center;color:#fff}
.bh-cta-banner__title{font-family:var(--serif,'Noto Serif KR',serif);font-size:24px;font-weight:700;margin-bottom:6px}
.bh-cta-banner__desc{font-size:14px;opacity:.85;margin-bottom:20px}
.bh-cta-banner__btn{display:inline-block;background:#fff;color:var(--primary);padding:13px 30px;border-radius:var(--pill,50px);font-size:15px;font-weight:700;transition:all .2s}
.bh-cta-banner__btn:hover{background:var(--g100);color:var(--primary);transform:translateY(-1px)}

/* Stats */
.bh-stats{display:flex;justify-content:center;gap:48px;flex-wrap:wrap}
.bh-stat-card{text-align:center;padding:24px 16px;background:#fff;border-radius:50%;aspect-ratio:1;display:flex;flex-direction:column;align-items:center;justify-content:center;box-shadow:var(--sh-md);border:1px solid var(--g200);min-width:160px}
.bh-stat-card__label{font-size:14px;color:var(--g600);margin-bottom:6px}
.bh-stat-card__value{font-size:34px;font-weight:900;color:var(--primary);line-height:1}
.bh-stat-card__note{font-size:11px;color:var(--g400);margin-top:4px}

/* Scores */
.bh-scores{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:700px;margin:24px auto 0}
.bh-score-card{text-align:center;padding:20px;background:#fff;border-radius:var(--r,6px);box-shadow:var(--sh-sm)}
.bh-score-card__label{font-size:13px;color:var(--g600);margin-bottom:6px}
.bh-score-card__value{font-size:28px;font-weight:900;color:var(--primary)}
.bh-score-card__value small{font-size:14px;color:var(--g500)}

/* Awards */
.bh-awards{display:flex;justify-content:center;gap:24px;flex-wrap:wrap}
.bh-award-badge{text-align:center;padding:20px}
.bh-award-badge__icon{width:64px;height:64px;margin:0 auto 10px;background:linear-gradient(135deg,#FFD700,#B8860B);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:26px}
.bh-award-badge__title{font-size:13px;font-weight:700;color:var(--black)}
.bh-award-badge__year{font-size:12px;color:var(--g500)}

/* Forms */
.bh-form-group{margin-bottom:14px}
.bh-form-group label{display:block;font-size:13px;font-weight:600;color:var(--g700);margin-bottom:4px}
.bh-form-input{width:100%;padding:10px 12px;border:1px solid var(--g200);border-radius:var(--r,6px);font-size:14px;transition:border-color .15s;font-family:inherit}
.bh-form-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(232,96,28,.07)}
textarea.bh-form-input{min-height:100px;resize:vertical}

/* Sidebar */
.bh-layout-sidebar{display:grid;grid-template-columns:240px 1fr;gap:28px;align-items:start}
.bh-sidebar{background:#fff;border:1px solid var(--g200);border-radius:var(--r,6px);overflow:hidden;position:sticky;top:90px}
.bh-sidebar__title{background:var(--navy);color:#fff;padding:14px 20px;font-size:16px;font-weight:700}
.bh-sidebar__group{border-bottom:1px solid var(--g200)}
.bh-sidebar__group-title{padding:12px 20px;font-size:14px;font-weight:700;color:var(--black);background:var(--g50);border-bottom:1px solid var(--g200)}
.bh-sidebar__link{display:block;padding:10px 20px 10px 32px;font-size:13px;color:var(--g600);border-bottom:1px solid var(--g100);transition:all .15s}
.bh-sidebar__link:hover,.bh-sidebar__link--active{color:var(--primary);background:var(--primary-lt)}

/* Filter */
.bh-filter{background:var(--g50);border-radius:var(--r,6px);padding:20px;margin-bottom:24px}
.bh-filter__title{font-size:15px;font-weight:700;color:var(--black);margin-bottom:14px;text-align:center}
.bh-filter__row{display:flex;gap:20px;justify-content:center;flex-wrap:wrap}
.bh-filter__options{display:flex;gap:6px}
.bh-filter__btn{padding:7px 14px;border-radius:var(--pill,50px);font-size:13px;border:1px solid var(--g300);color:var(--g600);background:#fff;transition:all .15s;cursor:pointer}
.bh-filter__btn:hover,.bh-filter__btn--active{background:var(--navy);color:#fff;border-color:var(--navy)}

/* Dashboard */
.bh-dashboard-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.bh-dashboard-card{background:#fff;border:1px solid var(--g200);border-radius:var(--rl,12px);overflow:hidden}
.bh-dashboard-card__header{padding:16px 20px;border-bottom:1px solid var(--g200);display:flex;align-items:center;justify-content:space-between}
.bh-dashboard-card__header h3{font-size:16px;font-weight:700}
.bh-dashboard-card__body{padding:20px}

/* Video wrapper */
.bh-video-wrapper{position:relative;padding-bottom:56.25%;height:0;overflow:hidden;border-radius:var(--r,6px);box-shadow:var(--sh-sm);background:#000}
.bh-video-wrapper iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:0}

/* Instructor detail */
.bh-instructor{display:grid;grid-template-columns:320px 1fr;gap:36px;align-items:start}
.bh-instructor__photo{border-radius:var(--rxl,16px);overflow:hidden;box-shadow:var(--sh-lg);background:var(--g100);aspect-ratio:3/4;display:flex;align-items:center;justify-content:center;color:var(--g300);font-size:64px}
.bh-instructor__info h3{font-family:var(--serif,'Noto Serif KR',serif);font-size:26px;font-weight:700;color:var(--black);margin-bottom:3px}
.bh-instructor__info h4{font-size:15px;color:var(--primary);font-weight:600;margin-bottom:16px}
.bh-instructor__career li{padding:5px 0;font-size:14px;color:var(--g600);display:flex;align-items:center;gap:6px}
.bh-instructor__career li::before{content:'•';color:var(--primary);font-weight:900}

/* Table responsive */
.bh-table-responsive{overflow-x:auto;-webkit-overflow-scrolling:touch}

/* Responsive compat */
@media(max-width:1024px){
  .bh-layout-sidebar{grid-template-columns:1fr}
  .bh-sidebar{position:static}
  .bh-instructor{grid-template-columns:1fr}
  .bh-stats{gap:20px}
  .bh-stat-card{border-radius:var(--rl,12px);aspect-ratio:auto;min-width:auto}
  .bh-scores{grid-template-columns:1fr}
}
@media(max-width:768px){
  .bh-section{padding:48px 0}
  .bh-section-title__main{font-size:22px}
  .bh-courses{grid-template-columns:1fr}
  .bh-benefits{grid-template-columns:1fr}
  .bh-benefit-card{display:flex;align-items:center;gap:14px;text-align:left;padding:16px}
  .bh-benefit-card__icon{margin:0;flex-shrink:0}
  .bh-cta-banner{padding:28px 18px;border-radius:var(--rl,12px)}
  .bh-cta-banner__title{font-size:19px}
  .bh-filter__row{flex-direction:column;gap:12px}
}