/* =====================================================
   INSTRUCTORS — page-instructors / archive-instructor / single-instructor
===================================================== */

/* HERO は parts/page-hero.php を共通利用（style.css の .page-hero-*） */
/* タブは style.css の .bp-filter-tabs を共通利用 */

/* ---- 講師グリッド ---- */
.instructors-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.instructor-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  transition: box-shadow 0.2s, transform 0.2s;
  display: flex;
  flex-direction: column;
}
.instructor-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}
.instructor-card:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}
.instructor-card-photo {
  background: var(--color-bg-gray);
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.instructor-card-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.instructor-card-photo-placeholder {
  font-size: 12px;
  color: var(--color-text-light);
}
.instructor-card-info {
  padding: 16px 18px;
}
.instructor-card-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 8px;
  line-height: 1.4;
}
.instructor-card-tag {
  display: inline-block;
  font-size: 11px;
  padding: 2px 10px;
  border: 1px solid var(--color-border);
  border-radius: 3px;
  color: var(--color-text-sub);
  margin-bottom: 10px;
  background: var(--color-bg-light);
}
.instructor-card-desc {
  font-size: 13px;
  color: var(--color-text-sub);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* フィルタの非表示は共通 .bp-filter-target [data-hidden="true"] で処理 */

/* ---- モーダル ---- */
.instructor-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 40px 20px;
  overflow-y: auto;
}
.instructor-modal-overlay[hidden] {
  display: none;
}
.instructor-modal-container {
  background: #fff;
  border-radius: 12px;
  width: 100%;
  max-width: 800px;
  position: relative;
  animation: instructorModalIn 0.25s ease;
}
@keyframes instructorModalIn {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.instructor-modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  line-height: 1;
  color: var(--color-text-sub);
  transition: background 0.15s;
  z-index: 10;
}
.instructor-modal-close:hover {
  background: var(--color-bg-light);
  color: var(--color-text-main);
}

.instructor-modal-content {
  padding: 32px 32px 24px;
}
.instructor-modal-header {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  margin-bottom: 24px;
}
.instructor-modal-avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: var(--color-bg-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: 11px;
  flex-shrink: 0;
  overflow: hidden;
}
.instructor-modal-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.instructor-modal-meta {
  flex: 1;
  min-width: 0;
}
.instructor-modal-name {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 8px;
  line-height: 1.3;
}
.instructor-modal-tag {
  display: inline-block;
  font-size: 12px;
  padding: 3px 12px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  color: var(--color-text-sub);
  margin-bottom: 10px;
  background: var(--color-bg-light);
}
.instructor-modal-role {
  font-size: 13px;
  color: var(--color-text-sub);
  margin-bottom: 8px;
  font-weight: 500;
}
.instructor-modal-bio {
  font-size: 14px;
  color: var(--color-text-sub);
  line-height: 1.7;
}

.instructor-modal-section-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text-main);
  margin: 0 0 14px;
  padding-left: 10px;
  border-left: 3px solid var(--color-primary);
  line-height: 1.4;
}

.instructor-modal-body {
  margin-bottom: 24px;
}
.instructor-modal-text {
  background: var(--color-bg-light);
  border-radius: 8px;
  padding: 18px 22px;
  font-size: 14px;
  color: var(--color-text-sub);
  line-height: 1.85;
}
.instructor-modal-text p {
  margin-bottom: 12px;
}
.instructor-modal-text p:last-child {
  margin-bottom: 0;
}

.instructor-modal-cta {
  display: flex;
  gap: 12px;
  margin-bottom: 28px;
}
.instructor-modal-cta .btn {
  flex: 1;
  text-align: center;
}

.instructor-modal-courses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.instructor-modal-course {
  display: block;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.15s;
}
.instructor-modal-course:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}
.instructor-modal-course-thumb {
  background: var(--color-bg-gray);
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.instructor-modal-course-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.instructor-modal-course-thumb .play-sm {
  width: 36px;
  height: 36px;
  background: rgba(0, 0, 0, 0.18);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.instructor-modal-course-thumb .play-sm::after {
  content: '';
  width: 0;
  height: 0;
  border-top: 8px solid transparent;
  border-bottom: 8px solid transparent;
  border-left: 12px solid rgba(0, 0, 0, 0.4);
  margin-left: 2px;
}
.instructor-modal-course-body {
  padding: 10px 12px;
}
.instructor-modal-course-tag {
  display: inline-block;
  font-size: 10px;
  padding: 2px 8px;
  border: 1px solid var(--color-border);
  border-radius: 3px;
  color: var(--color-text-sub);
  margin-bottom: 4px;
}
.instructor-modal-course-title {
  font-size: 12px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--color-text-main);
}

/* ---- 単独講師ページ（/instructor/{slug}/） ---- */
.instructor-detail-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  align-items: start;
}
.instructor-detail-photo {
  background: var(--color-bg-gray);
  aspect-ratio: 4 / 3;
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 12px;
}
.instructor-detail-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.instructor-detail-tag-row {
  text-align: center;
}
.instructor-detail-bio {
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-text-main);
  background: var(--color-primary-light);
  padding: 18px 22px;
  border-radius: 8px;
  margin-bottom: 32px;
}

/* ---- レスポンシブ ---- */
@media (max-width: 1024px) {
  .instructors-grid { grid-template-columns: repeat(3, 1fr); }
  .instructor-modal-courses-grid { grid-template-columns: repeat(2, 1fr); }
  .instructor-detail-grid { grid-template-columns: 1fr; gap: 20px; }
}

@media (max-width: 640px) {
  .instructors-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .instructor-card-info { padding: 12px 14px; }
  .instructor-card-name { font-size: 14px; }
  .instructor-card-desc { font-size: 12px; -webkit-line-clamp: 2; }

  .instructor-modal-overlay { padding: 0; align-items: flex-end; }
  .instructor-modal-container { max-width: 100%; border-radius: 16px 16px 0 0; max-height: 92vh; overflow-y: auto; }
  .instructor-modal-content { padding: 24px 20px 20px; }
  .instructor-modal-header { gap: 14px; margin-bottom: 18px; }
  .instructor-modal-avatar { width: 64px; height: 64px; }
  .instructor-modal-name { font-size: 18px; }
  .instructor-modal-cta { flex-direction: column; gap: 8px; }
  .instructor-modal-courses-grid { grid-template-columns: 1fr; }
}