/* ===============================================
   Design 1: Classic Black & Gold - Common Pages
   =============================================== */

/* ===== About Page ===== */
.about-section {
  padding: 80px 0;
  background: var(--color-black);
}

.about-manifesto {
  max-width: 800px;
  margin: 0 auto 60px;
  text-align: center;
}

.manifesto-line {
  font-size: clamp(18px, 2.5vw, 24px);
  line-height: 1.8;
  color: var(--color-gray-light);
  margin-bottom: 32px;
}

.m-key {
  font-weight: 900;
  color: var(--color-white);
}

.m-gold {
  font-weight: 800;
  color: var(--color-gold);
}

.m-brand {
  position: relative;
  font-weight: 900;
  color: var(--color-gold);
}

.manifesto-divider {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
  margin: 48px auto;
}

.manifesto-strong {
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 900;
  color: var(--color-white);
}

.about-image {
  max-width: 1000px;
  margin: 0 auto 80px;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.about-image img {
  width: 100%;
  height: auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--color-black-light);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 40px 24px;
  text-align: center;
  transition: all var(--transition);
}

.feature-card:hover {
  border-color: var(--color-gold);
  transform: translateY(-4px);
}

.feature-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.feature-title {
  font-size: 18px;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 12px;
}

.feature-text {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.7;
}

/* ===== Facility Page ===== */
.facility-section {
  padding: 80px 0;
  background: var(--color-black);
}

.facility-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.facility-card {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
}

.facility-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.facility-card:hover img {
  transform: scale(1.05);
}

.facility-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
  display: flex;
  align-items: flex-end;
  padding: 20px;
  opacity: 0;
  transition: opacity var(--transition);
}

.facility-card:hover .facility-card-overlay {
  opacity: 1;
}

.facility-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-white);
}

/* ===== Location Page ===== */
.location-section {
  padding: 80px 0;
  background: var(--color-black);
}

.location-map {
  max-width: 1000px;
  margin: 0 auto 50px;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--color-border);
}

#naverMap {
  width: 100%;
  height: 450px;
}

.location-info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.location-card {
  background: var(--color-black-light);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition);
}

.location-card:hover {
  border-color: var(--color-gold);
}

.location-card-icon {
  font-size: 32px;
  margin-bottom: 16px;
}

.location-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-gold);
  margin-bottom: 12px;
}

.location-card-text {
  font-size: 15px;
  color: var(--color-white);
  line-height: 1.7;
}

/* ===== Curriculum Page ===== */
.curriculum-section {
  padding: 80px 0;
  background: linear-gradient(180deg, #0b1020, #0f1730);
}

.curriculum-header {
  text-align: center;
  margin-bottom: 40px;
}

.curriculum-eyebrow {
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.18em;
  color: rgba(255,255,255,0.6);
  margin-bottom: 16px;
}

.curriculum-title {
  font-size: 32px;
  font-weight: 900;
  color: var(--color-white);
  margin-bottom: 12px;
}

.curriculum-desc {
  font-size: 15px;
  color: rgba(255,255,255,0.7);
}

.curriculum-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.curriculum-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  padding: 28px;
  transition: all var(--transition);
}

.curriculum-card:hover {
  transform: translateY(-4px);
  border-color: rgba(124,58,237,0.3);
}

.curriculum-badge {
  display: inline-block;
  padding: 8px 14px;
  background: rgba(124,58,237,0.15);
  border: 1px solid rgba(124,58,237,0.3);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 800;
  color: #a78bfa;
  margin-bottom: 16px;
}

.curriculum-card-title {
  font-size: 22px;
  font-weight: 900;
  color: var(--color-white);
  margin-bottom: 8px;
}

.curriculum-card-sub {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 20px;
}

.curriculum-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.curriculum-meta-item {
  background: rgba(255,255,255,0.04);
  border-radius: 12px;
  padding: 12px;
  text-align: center;
}

.curriculum-meta-item .label {
  font-size: 11px;
  color: rgba(255,255,255,0.5);
  margin-bottom: 6px;
}

.curriculum-meta-item .value {
  font-size: 15px;
  font-weight: 800;
  color: var(--color-white);
}

.curriculum-meta-item.price .value {
  color: #ff6b9d;
}

.curriculum-points {
  background: rgba(255,255,255,0.04);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 16px;
}

.curriculum-points-title {
  font-size: 12px;
  font-weight: 800;
  color: rgba(255,255,255,0.8);
  margin-bottom: 10px;
}

.curriculum-points-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.curriculum-points-list li {
  font-size: 13px;
  color: rgba(255,255,255,0.65);
  padding-left: 16px;
  position: relative;
}

.curriculum-points-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-gold);
}

/* ===== Success Board Page ===== */
.success-section {
  padding: 80px 0;
  background: var(--color-black);
}

.board-container {
  max-width: 1000px;
  margin: 0 auto;
}

.board-table {
  width: 100%;
  border-collapse: collapse;
}

.board-table th,
.board-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.board-table th {
  background: var(--color-black-light);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-gold);
}

.board-table td {
  font-size: 14px;
  color: var(--color-gray-light);
}

.board-table tr:hover td {
  background: rgba(255,255,255,0.02);
}

.board-table .post-title {
  color: var(--color-white);
  font-weight: 600;
}

.board-table .post-title:hover {
  color: var(--color-gold);
}

/* ===== Videos Section ===== */
.videos-section {
  padding: 80px 0;
  background: var(--color-black);
}

.videos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.video-card {
  background: var(--color-black-light);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
  transition: all var(--transition);
}

.video-card:hover {
  border-color: var(--color-gold);
  transform: translateY(-4px);
}

.video-thumbnail {
  position: relative;
  aspect-ratio: 16/9;
  background: #000;
  cursor: pointer;
}

.video-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.play-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.4);
  color: var(--color-gold);
  font-size: 32px;
  opacity: 0;
  transition: opacity var(--transition);
}

.video-card:hover .play-icon {
  opacity: 1;
}

.video-info {
  padding: 20px;
}

.video-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}

.video-desc {
  font-size: 13px;
  color: var(--color-gray);
  line-height: 1.6;
  margin-bottom: 12px;
}

.btn-delete {
  padding: 8px 16px;
  background: #c0392b;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition);
}

.btn-delete:hover {
  background: #e74c3c;
}

.no-data,
.loading-text,
.error-text {
  text-align: center;
  padding: 60px;
  color: var(--color-gray);
  grid-column: 1 / -1;
}

.error-text {
  color: #c0392b;
}

/* ===== Modal ===== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: var(--color-black-light);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 40px;
  width: 100%;
  max-width: 480px;
  margin: 20px;
}

.modal-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-gold);
  margin-bottom: 24px;
  text-align: center;
}

.modal .form-group {
  margin-bottom: 20px;
}

.modal label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--color-gray-light);
}

.modal input,
.modal textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-black);
  color: var(--color-white);
  font-size: 15px;
  font-family: inherit;
  box-sizing: border-box;
}

.modal input:focus,
.modal textarea:focus {
  outline: none;
  border-color: var(--color-gold);
}

.modal-buttons {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 24px;
}

.btn-secondary {
  padding: 12px 24px;
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-gray);
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
}

.btn-secondary:hover {
  border-color: var(--color-gray);
  color: var(--color-white);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .facility-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .curriculum-cards {
    grid-template-columns: 1fr;
  }

  .videos-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr;
  }

  .location-info-grid {
    grid-template-columns: 1fr;
  }

  .facility-grid {
    grid-template-columns: 1fr;
  }

  .videos-grid {
    grid-template-columns: 1fr;
  }

  .board-table th:nth-child(3),
  .board-table td:nth-child(3) {
    display: none;
  }

  .modal-content {
    padding: 24px;
  }

  #naverMap {
    height: 350px;
  }

  .curriculum-meta {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .about-section,
  .facility-section,
  .location-section,
  .success-section,
  .videos-section {
    padding: 60px 0;
  }

  .feature-card {
    padding: 30px 20px;
  }

  .feature-icon {
    font-size: 36px;
  }

  .feature-title {
    font-size: 16px;
  }

  .location-card {
    padding: 24px 20px;
  }

  #naverMap {
    height: 280px;
  }

  .board-table th,
  .board-table td {
    padding: 12px 10px;
    font-size: 13px;
  }

  .video-info {
    padding: 16px;
  }

  .video-title {
    font-size: 15px;
  }

  .curriculum-card {
    padding: 20px;
  }

  .curriculum-card-title {
    font-size: 18px;
  }
}