/* ============================================
   研修ページ 共通スタイルシート
   ============================================ */

/* ---------- Tutorial Layout ---------- */
.tutorial-section {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-xl) var(--space-3xl);
}

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
  padding-top: var(--space-md);
}

.breadcrumb a {
  color: var(--accent-3);
  text-decoration: none;
  transition: var(--transition-fast);
}

.breadcrumb a:hover {
  text-decoration: underline;
}

/* ---------- Page Title ---------- */
.tutorial-page-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--space-sm);
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-3) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tutorial-page-description {
  font-size: clamp(0.9rem, 1.5vw, 1.05rem);
  color: var(--text-secondary);
  line-height: 1.8;
  font-weight: 400;
  margin-bottom: var(--space-xl);
}

/* ---------- Step Card ---------- */
.tutorial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
  transition: var(--transition-smooth);
}

.tutorial-card:hover {
  border-color: rgba(99, 102, 241, 0.15);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.step-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.step-number {
  background: var(--accent-gradient);
  color: white;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 0.9rem;
  font-weight: bold;
  flex-shrink: 0;
}

.step-text {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  font-weight: 400;
  margin-bottom: var(--space-md);
}

/* ---------- Step Screenshot ---------- */
.step-screenshot-wrap {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--border-glass);
  transition: var(--transition-smooth);
  background: var(--bg-secondary);
}

.step-screenshot-wrap:hover {
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.1);
}

.step-screenshot {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.4s ease;
}

.step-screenshot-wrap:hover .step-screenshot {
  transform: scale(1.02);
}

/* Zoom hint overlay */
.screenshot-zoom-hint {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #fff;
  font-size: 0.8rem;
  padding: 4px 10px;
  border-radius: 100px;
  opacity: 0;
  transition: var(--transition-fast);
  pointer-events: none;
  display: flex;
  align-items: center;
  gap: 4px;
}

.step-screenshot-wrap:hover .screenshot-zoom-hint {
  opacity: 1;
}

/* Placeholder for missing screenshot */
.step-screenshot-placeholder {
  width: 100%;
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-sm);
  background: rgba(255, 255, 255, 0.02);
  border: 2px dashed rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.step-screenshot-placeholder .placeholder-icon {
  font-size: 2rem;
  opacity: 0.4;
}

/* ---------- Tip Box ---------- */
.tip-box {
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  margin-bottom: var(--space-xl);
}

.tip-box-title {
  color: var(--accent-3);
  font-weight: bold;
  margin-bottom: var(--space-xs);
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.95rem;
}

.tip-box-text {
  font-size: 0.95rem;
  line-height: 1.6;
  font-weight: 400;
}

/* ---------- Warning Box ---------- */
.warning-box {
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.25);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.warning-title {
  color: #f87171;
  font-weight: bold;
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 1rem;
}

.warning-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.warning-item {
  padding-left: var(--space-lg);
  position: relative;
}

.warning-item::before {
  content: '⚠';
  position: absolute;
  left: 0;
  top: 0;
  font-size: 0.85rem;
}

.warning-item-title {
  font-size: 0.92rem;
  color: var(--text-primary);
  font-weight: 500;
  margin-bottom: 2px;
}

.warning-item-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  font-weight: 400;
}

/* ---------- Notes Section ---------- */
.notes-section {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-lg);
}

.notes-section-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: #f87171;
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.note-item {
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border-glass);
}

.note-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.note-item-header {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.note-item-body {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  font-weight: 400;
}

/* ---------- FAQ Section ---------- */
.faq-section {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-lg);
}

.faq-section-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--accent-3);
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.faq-item {
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border-glass);
}

.faq-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.faq-q {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.faq-q-icon {
  color: #fff;
  background: var(--accent-gradient);
  border-radius: 4px;
  padding: 3px 8px;
  font-size: 0.8rem;
  font-weight: bold;
  line-height: 1;
  margin-top: 2px;
  flex-shrink: 0;
}

.faq-a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  font-weight: 400;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.faq-a-icon {
  color: #fff;
  background: #f87171;
  border-radius: 4px;
  padding: 3px 8px;
  font-size: 0.8rem;
  font-weight: bold;
  line-height: 1;
  margin-top: 2px;
  flex-shrink: 0;
}

/* ---------- Links Section ---------- */
.links-section {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-3xl);
}

.links-section-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--accent-3);
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.link-item {
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border-glass);
}

.link-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.link-item-header {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
  display: flex;
  align-items: center;
  gap: 8px;
}

.link-item-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  font-weight: 400;
  margin-bottom: 12px;
}

.link-external {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-3);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  transition: var(--transition-fast);
  padding: 6px 14px;
  background: rgba(167, 139, 250, 0.08);
  border: 1px solid rgba(167, 139, 250, 0.2);
  border-radius: 100px;
}

.link-external:hover {
  color: #fff;
  background: var(--accent-gradient);
  border-color: transparent;
  box-shadow: 0 4px 12px var(--accent-glow);
  text-decoration: none;
}

.link-external::after {
  content: '↗';
  font-size: 0.75rem;
}

/* ---------- Screenshot Lightbox (Tutorial) ---------- */
.tutorial-lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(5, 5, 12, 0.95);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
  cursor: zoom-out;
}

.tutorial-lightbox.active {
  opacity: 1;
  visibility: visible;
}

.tutorial-lightbox-close {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  transition: var(--transition-fast);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  z-index: 10;
}

.tutorial-lightbox-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

.tutorial-lightbox-img {
  max-width: 95vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 80px rgba(0, 0, 0, 0.6);
  transform: scale(0.92);
  transition: var(--transition-spring);
}

.tutorial-lightbox.active .tutorial-lightbox-img {
  transform: scale(1);
}

.tutorial-lightbox-caption {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text-primary);
  font-size: 0.85rem;
  padding: var(--space-sm) var(--space-lg);
  border-radius: 100px;
  white-space: nowrap;
  max-width: 90vw;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ---------- Progress indicator ---------- */
.tutorial-progress {
  position: sticky;
  top: 72px;
  margin-top: 72px;
  z-index: 50;
  background: rgba(10, 10, 20, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-glass);
  padding: 12px var(--space-xl);
}

.tutorial-progress-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.progress-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: var(--transition-fast);
  cursor: pointer;
}

.progress-dot.active {
  background: var(--accent-gradient);
  border-color: transparent;
  box-shadow: 0 0 8px var(--accent-glow);
}

.progress-dot:hover {
  background: rgba(255, 255, 255, 0.2);
}

.progress-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: auto;
}

/* ---------- Responsive (Tutorial) ---------- */
@media (max-width: 768px) {
  .tutorial-section {
    padding: var(--space-md) var(--space-md) var(--space-2xl);
  }

  .breadcrumb {
    padding-top: var(--space-sm);
    font-size: 0.8rem;
  }

  .tutorial-card {
    padding: var(--space-lg);
    margin-bottom: var(--space-md);
  }

  .step-title {
    font-size: 1.1rem;
  }

  .step-number {
    width: 28px;
    height: 28px;
    font-size: 0.8rem;
  }

  .step-text {
    font-size: 0.88rem;
  }

  .notes-section,
  .faq-section {
    padding: var(--space-lg);
  }

  .tutorial-progress {
    top: 64px;
    margin-top: 64px;
    padding: var(--space-sm) var(--space-md);
  }

  .tutorial-lightbox-caption {
    font-size: 0.78rem;
    padding: var(--space-xs) var(--space-md);
  }
}

@media (max-width: 480px) {
  .tutorial-section {
    padding: var(--space-sm) var(--space-sm) var(--space-xl);
  }

  .tutorial-card {
    padding: var(--space-md);
    border-radius: var(--radius-md);
  }

  .warning-box {
    padding: var(--space-md);
  }

  .tip-box {
    padding: var(--space-md);
  }
}