/* ============================================================
   새빛드론 - 서브 페이지 공통 스타일
   ============================================================ */

/* ===== PAGE HERO ===== */
.page-hero {
  position: relative;
  background: var(--navy);
  /* 공지(36px) + 헤더(80px) = 116px */
  padding: 156px 0 80px;
  overflow: hidden;
}
.page-hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 30% 50%, rgba(0,200,200,.1) 0%, transparent 60%),
    linear-gradient(135deg, #0A0E1A 0%, #131929 100%);
}
.page-hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%2300C8C8' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.page-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
}
.page-hero-content h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: #fff;
  margin: 12px 0 16px;
  letter-spacing: -0.5px;
}
.page-hero-content p {
  color: rgba(255,255,255,.65);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 20px;
}
.page-breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: .85rem;
  color: rgba(255,255,255,.4);
}
.page-breadcrumb a { color: var(--teal); }
.page-breadcrumb i { font-size: .7rem; }

/* ===== STICKY COURSE NAV ===== */
.course-nav-bar {
  background: #fff;
  border-bottom: 2px solid var(--gray-200);
  position: sticky;
  top: 110px;
  z-index: 100;
}
.course-tabs {
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.course-tabs::-webkit-scrollbar { display: none; }
.course-tab {
  flex-shrink: 0;
  padding: 16px 20px;
  font-size: .88rem;
  font-weight: 600;
  color: var(--gray-600);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  white-space: nowrap;
  transition: var(--transition);
}
.course-tab:hover, .course-tab.active { color: var(--teal); border-bottom-color: var(--teal); }

/* ===== COURSE SECTION ===== */
.course-section { padding: 96px 0; }
.course-section.alt-bg { background: var(--gray-100); }

.course-detail-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  align-items: start;
}
.course-detail-grid.reverse { direction: rtl; }
.course-detail-grid.reverse > * { direction: ltr; }

.course-number {
  font-size: 3.5rem;
  font-weight: 900;
  color: rgba(0,200,200,.15);
  font-family: 'Orbitron', sans-serif;
  line-height: 1;
  margin-bottom: 8px;
}
.course-number.white { color: rgba(255,255,255,.15); }
.course-badge-lg {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .5px;
  margin-bottom: 14px;
}
.national { background: var(--teal-light); color: var(--teal-dark); }
.vtol-badge { background: #e8f4ff; color: #0066cc; }
.fpv-badge { background: #fff0f0; color: #cc3300; }
.instructor-badge { background: #f0fff0; color: #006600; }
.eval-badge { background: rgba(255,255,255,.2); color: #fff; border: 1px solid rgba(255,255,255,.4); }

.course-detail-left h2 {
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  font-weight: 800;
  color: #1a1a2e;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}
.course-lead {
  color: var(--gray-600);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 32px;
}

/* Course Highlights */
.course-highlights {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}
.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background: var(--gray-100);
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
}
.highlight-item i { color: var(--teal); font-size: 1.1rem; margin-top: 2px; }
.highlight-item strong { display: block; font-size: .82rem; color: var(--gray-600); margin-bottom: 2px; }
.highlight-item span { font-size: .88rem; font-weight: 600; color: #1a1a2e; }

/* Curriculum */
.curriculum-block { margin-bottom: 32px; }
.curriculum-block h3 {
  font-size: 1rem;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--teal);
}

/* ── 가로 스텝 타임라인 ── */
.curriculum-timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}

/* 스텝 사이 연결선 */
.curriculum-timeline::before {
  content: '';
  position: absolute;
  top: 30px;
  left: calc(12.5% + 4px);
  right: calc(12.5% + 4px);
  height: 2px;
  background: linear-gradient(90deg, var(--teal), rgba(0,200,200,.3));
  z-index: 0;
}

.ct-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 8px 16px;
  position: relative;
  z-index: 1;
}
.ct-item:hover .ct-step {
  transform: scale(1.1);
  box-shadow: 0 4px 16px rgba(0,200,200,.4);
}

/* 동그란 스텝 뱃지 */
.ct-step {
  width: 60px;
  height: 60px;
  background: var(--teal);
  color: #fff;
  font-size: .78rem;
  font-weight: 800;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: .5px;
  margin-bottom: 14px;
  flex-shrink: 0;
  border: 3px solid #fff;
  box-shadow: 0 2px 10px rgba(0,200,200,.3);
  transition: transform .2s, box-shadow .2s;
  position: relative;
  z-index: 2;
}

/* 스텝 번호 (순번 표시) */
.ct-item:nth-child(1) .ct-step { background: var(--teal); }
.ct-item:nth-child(2) .ct-step { background: #0098a8; }
.ct-item:nth-child(3) .ct-step { background: #006e7f; }
.ct-item:nth-child(4) .ct-step { background: #004f5c; }

.ct-content {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  padding: 14px 12px;
  width: 100%;
  box-shadow: 0 2px 8px rgba(0,0,0,.05);
  transition: border-color .2s, box-shadow .2s;
}
.ct-item:hover .ct-content {
  border-color: var(--teal);
  box-shadow: 0 4px 16px rgba(0,200,200,.12);
}
.ct-content strong {
  display: block;
  font-size: .84rem;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 6px;
  line-height: 1.4;
}
.ct-content span {
  font-size: .76rem;
  color: var(--gray-600);
  line-height: 1.5;
  display: block;
}

/* Enroll button */
.btn-enroll {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--teal);
  color: var(--navy);
  font-weight: 700;
  padding: 14px 28px;
  border-radius: 10px;
  font-size: 1rem;
  transition: var(--transition);
}
.btn-enroll:hover { background: var(--teal-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,200,200,.3); }

/* Course right side */
.course-img-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 24px;
  box-shadow: var(--shadow-md);
}
.course-img-wrap img { width: 100%; height: 300px; object-fit: cover; }
.course-info-card {
  background: var(--navy);
  border-radius: var(--radius);
  padding: 24px;
  color: #fff;
}
.course-info-card h4 { color: var(--teal); font-size: .9rem; font-weight: 700; margin-bottom: 16px; letter-spacing: .5px; }
.course-info-card ul { display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }
.course-info-card li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .88rem;
  color: rgba(255,255,255,.7);
}
.course-info-card i { color: var(--teal); }
.btn-consult-sm {
  display: block;
  text-align: center;
  background: var(--teal);
  color: var(--navy);
  font-weight: 700;
  padding: 10px;
  border-radius: 8px;
  font-size: .9rem;
  transition: var(--transition);
}
.btn-consult-sm:hover { background: var(--teal-dark); }

/* FPV Tracks */
.fpv-tracks { margin-bottom: 32px; }
.fpv-tracks h3 { font-size: 1rem; font-weight: 700; color: #1a1a2e; margin-bottom: 16px; }
.track-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.track-card {
  text-align: center;
  padding: 24px 16px;
  background: var(--gray-100);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius);
  transition: var(--transition);
}
.track-card:hover { border-color: var(--teal); background: var(--teal-light); }
.track-card i { font-size: 1.8rem; color: var(--teal); margin-bottom: 10px; }
.track-card h4 { font-size: .95rem; font-weight: 700; margin-bottom: 6px; }
.track-card p { font-size: .82rem; color: var(--gray-600); }

/* Evaluation Section */
.evaluation-section {
  background: linear-gradient(135deg, var(--navy), var(--navy-mid));
  padding: 96px 0;
}
.evaluation-header { text-align: center; margin-bottom: 56px; }
.eval-badge-wrap { margin-bottom: 12px; }
.evaluation-header h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); font-weight: 800; margin-bottom: 16px; }
.eval-lead { color: rgba(255,255,255,.65); font-size: 1.05rem; line-height: 1.8; }
.eval-features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}
.eval-feat {
  text-align: center;
  padding: 36px 24px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(0,200,200,.2);
  border-radius: var(--radius);
  transition: var(--transition);
}
.eval-feat:hover { background: rgba(0,200,200,.1); border-color: var(--teal); transform: translateY(-4px); }
.eval-feat i { font-size: 2rem; color: var(--teal); margin-bottom: 16px; }
.eval-feat h4 { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 10px; }
.eval-feat p { color: rgba(255,255,255,.55); font-size: .88rem; line-height: 1.7; }
.eval-cta { text-align: center; }

/* ===== GALLERY PAGE ===== */
.gallery-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 40px;
  justify-content: center;
}
.filter-btn {
  padding: 8px 20px;
  border: 2px solid var(--gray-200);
  border-radius: 50px;
  font-size: .88rem;
  font-weight: 600;
  color: var(--gray-600);
  background: #fff;
  cursor: pointer;
  transition: var(--transition);
}
.filter-btn:hover, .filter-btn.active { border-color: var(--teal); color: var(--teal); background: var(--teal-light); }
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}
.gallery-item {
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  aspect-ratio: 4/3;
  cursor: pointer;
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item .g-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.5);
  opacity: 0;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}
.gallery-item:hover .g-overlay { opacity: 1; }
.gallery-item .g-overlay i { font-size: 2rem; color: #fff; }
.gallery-item .g-info {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,.7));
  color: #fff;
  padding: 20px 14px 12px;
  font-size: .88rem;
  font-weight: 600;
}
.gallery-item .g-cat {
  font-size: .75rem;
  color: var(--teal);
  margin-bottom: 4px;
  display: block;
}

/* Review page */
.reviews-page-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-bottom: 40px;
}

/* ===== CONTACT PAGE ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 48px;
  align-items: start;
}
.contact-info-card {
  background: var(--navy);
  border-radius: var(--radius-lg);
  padding: 36px;
  color: #fff;
}
.contact-info-card h3 { color: var(--teal); font-size: 1.1rem; font-weight: 700; margin-bottom: 24px; }
.contact-info-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.contact-info-item:last-child { border-bottom: none; }
.contact-info-icon {
  width: 40px;
  height: 40px;
  background: rgba(0,200,200,.15);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--teal);
  flex-shrink: 0;
}
.contact-info-item strong { display: block; font-size: .82rem; color: rgba(255,255,255,.5); margin-bottom: 4px; }
.contact-info-item span { font-size: .95rem; color: #fff; }

/* Contact Form */
.contact-form-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}
.contact-form-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; }
.contact-form-card p { color: var(--gray-600); font-size: .9rem; margin-bottom: 28px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: .88rem; font-weight: 600; color: #1a1a2e; margin-bottom: 8px; }
.form-group label .required { color: var(--teal); }
.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--gray-200);
  border-radius: 10px;
  font-size: .92rem;
  font-family: inherit;
  color: #1a1a2e;
  transition: var(--transition);
  outline: none;
}
.form-control:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(0,200,200,.1); }
.form-control::placeholder { color: var(--gray-400); }
textarea.form-control { resize: vertical; min-height: 120px; }
select.form-control { cursor: pointer; }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.form-check { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 24px; }
.form-check input { margin-top: 2px; accent-color: var(--teal); }
.form-check label { font-size: .85rem; color: var(--gray-600); line-height: 1.5; }
.form-check a { color: var(--teal); }
.btn-submit {
  width: 100%;
  background: var(--teal);
  color: var(--navy);
  font-weight: 700;
  padding: 14px;
  border-radius: 10px;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: inherit;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.btn-submit:hover { background: var(--teal-dark); transform: translateY(-1px); }
.form-success {
  display: none;
  text-align: center;
  padding: 40px;
}
.form-success i { font-size: 3rem; color: var(--teal); margin-bottom: 16px; }
.form-success h4 { font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; }
.form-success p { color: var(--gray-600); }

/* ===== ABOUT PAGE ===== */
.about-intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 96px;
}
.about-img-wrap { border-radius: var(--radius-lg); overflow: hidden; }
.about-img-wrap img { width: 100%; height: 400px; object-fit: cover; }
.about-text .section-tag { text-align: left; }
.about-text h2 { text-align: left; }
.about-text p { color: var(--gray-600); line-height: 1.8; margin-bottom: 16px; }
.about-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.value-card {
  text-align: center;
  padding: 32px 24px;
  background: var(--gray-100);
  border-radius: var(--radius);
  transition: var(--transition);
}
.value-card:hover { background: var(--teal-light); }
.value-card i { font-size: 2rem; color: var(--teal); margin-bottom: 12px; }
.value-card h4 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.value-card p { font-size: .85rem; color: var(--gray-600); line-height: 1.6; }

/* History Timeline */
.history-timeline { position: relative; padding-left: 48px; }
.history-timeline::before {
  content: '';
  position: absolute;
  left: 16px;
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--teal), transparent);
}
.history-item { position: relative; margin-bottom: 32px; }
.history-item::before {
  content: '';
  position: absolute;
  left: -36px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--teal);
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px var(--teal);
}
.history-year { color: var(--teal); font-weight: 700; font-size: .9rem; margin-bottom: 4px; font-family: 'Orbitron', sans-serif; }
.history-item h4 { font-weight: 700; margin-bottom: 4px; }
.history-item p { font-size: .88rem; color: var(--gray-600); }

/* ===== ADMIN PAGE ===== */
.admin-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: calc(100vh - 72px);
}
.admin-sidebar {
  background: var(--navy);
  padding: 24px 0;
  border-right: 1px solid rgba(0,200,200,.15);
}
.admin-nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  color: rgba(255,255,255,.6);
  font-size: .9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}
.admin-nav-item:hover,
.admin-nav-item.active { color: var(--teal); background: rgba(0,200,200,.08); }
.admin-nav-item i { width: 20px; text-align: center; }
.admin-content { padding: 32px; background: var(--gray-100); }
.admin-section { display: none; }
.admin-section.active { display: block; }
.admin-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}
.admin-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--gray-200);
}
.admin-card-header h3 { font-size: 1rem; font-weight: 700; }
.btn-admin-add {
  background: var(--teal);
  color: var(--navy);
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: .85rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: inherit;
}
.btn-admin-add:hover { background: var(--teal-dark); }
.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th {
  text-align: left;
  padding: 10px 12px;
  font-size: .82rem;
  font-weight: 600;
  color: var(--gray-600);
  border-bottom: 1px solid var(--gray-200);
  background: var(--gray-100);
}
.admin-table td {
  padding: 12px 12px;
  font-size: .88rem;
  border-bottom: 1px solid var(--gray-200);
  vertical-align: middle;
}
.admin-table tr:hover td { background: #fafafa; }
.status-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 600;
}
.status-new { background: #e8f4ff; color: #0066cc; }
.status-check { background: #fff8e0; color: #cc8800; }
.status-done { background: #e8ffe8; color: #006600; }
.visible-badge { background: var(--teal-light); color: var(--teal-dark); padding: 3px 8px; border-radius: 4px; font-size: .75rem; font-weight: 600; }
.hidden-badge { background: var(--gray-200); color: var(--gray-600); padding: 3px 8px; border-radius: 4px; font-size: .75px; font-weight: 600; }
.btn-action {
  padding: 5px 12px;
  border-radius: 6px;
  font-size: .78rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid var(--gray-200);
  margin-right: 4px;
  font-family: inherit;
}
.btn-edit { background: #fff; color: var(--gray-800); }
.btn-edit:hover { border-color: var(--teal); color: var(--teal); }
.btn-delete { background: #fff; color: #dc3545; border-color: #dc3545; }
.btn-delete:hover { background: #dc3545; color: #fff; }

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal-box {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 32px;
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(.95);
  transition: var(--transition);
}
.modal-overlay.open .modal-box { transform: scale(1); }
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.modal-header h3 { font-size: 1.1rem; font-weight: 700; }
.modal-close { color: var(--gray-400); font-size: 1.2rem; cursor: pointer; transition: var(--transition); }
.modal-close:hover { color: #dc3545; }
.modal-footer { display: flex; gap: 12px; justify-content: flex-end; margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--gray-200); }
.btn-modal-cancel {
  padding: 10px 20px;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  font-size: .9rem;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}
.btn-modal-cancel:hover { background: var(--gray-100); }
.btn-modal-save {
  padding: 10px 24px;
  background: var(--teal);
  color: var(--navy);
  border: none;
  border-radius: 8px;
  font-size: .9rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}
.btn-modal-save:hover { background: var(--teal-dark); }

/* ===== RESPONSIVE PAGES ===== */
@media (max-width: 1024px) {
  .course-detail-grid { grid-template-columns: 1fr; gap: 40px; }
  .course-detail-grid.reverse { direction: ltr; }
  .eval-features { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .about-intro-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-values { grid-template-columns: repeat(2, 1fr); }
  .admin-layout { grid-template-columns: 1fr; }
  .admin-sidebar { display: flex; overflow-x: auto; padding: 0; }
}
@media (max-width: 768px) {
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .reviews-page-grid { grid-template-columns: 1fr; }
  .course-highlights { grid-template-columns: 1fr; }
  .eval-features { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .track-cards { grid-template-columns: 1fr; }
  .about-values { grid-template-columns: 1fr; }
  /* 태블릿: 커리큘럼 2열 */
  .curriculum-timeline { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .curriculum-timeline::before { display: none; }
  .ct-item { padding: 0 4px 12px; }
}
@media (max-width: 480px) {
  .gallery-grid { grid-template-columns: 1fr; }
  .course-nav-bar { top: 60px; }
  /* 모바일: 커리큘럼 가로 스크롤 */
  .curriculum-timeline {
    grid-template-columns: repeat(4, minmax(120px, 1fr));
    overflow-x: auto;
    padding-bottom: 8px;
    gap: 0;
    -webkit-overflow-scrolling: touch;
  }
  .curriculum-timeline::before { display: block; }
  .ct-step { width: 50px; height: 50px; font-size: .72rem; }
}