/* ============================================
   masatotahara.com — Subpage Styles
   ============================================ */

/* --- Page Hero --- */
.page-hero {
  background: var(--color-primary);
  padding-top: 160px;
  padding-bottom: 80px;
}

.page-hero-title {
  font-family: var(--font-en);
  font-size: 2.5rem;
  font-weight: 400;
  color: var(--color-bg);
  letter-spacing: 0.05em;
}

.page-hero-sub {
  font-family: var(--font-jp);
  font-size: 1rem;
  font-weight: 300;
  color: var(--color-text-light);
  margin-top: 12px;
  letter-spacing: 0.08em;
}

@media (max-width: 768px) {
  .page-hero {
    padding-top: 130px;
    padding-bottom: 60px;
  }

  .page-hero-title {
    font-size: 2rem;
  }
}

/* --- Subpage Section --- */
.subpage-section {
  background: var(--color-bg);
  padding: var(--section-padding) 0;
}

/* --- Page Navigation (prev/next) --- */
.page-nav {
  background: var(--color-surface);
  padding: 48px 0;
}

.page-nav .container {
  display: flex;
  justify-content: space-between;
}

.page-nav-link {
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--color-primary-light);
  letter-spacing: 0.05em;
}

.page-nav-link:hover {
  color: var(--color-accent);
}

/* --- Current nav link --- */
.nav-links .current {
  color: var(--color-accent);
}

/* --- Philosophy Lead --- */
.philosophy-lead {
  font-size: 1.375rem;
  font-weight: 300;
  line-height: 2.0;
  color: var(--color-primary);
  text-align: center;
}

@media (max-width: 768px) {
  .philosophy-lead {
    font-size: 1.125rem;
  }
}


/* ============================================
   About — Timeline
   ============================================ */
.timeline {
  position: relative;
  padding-left: 40px;
  margin-top: 48px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--color-surface-dark);
}

.timeline-item {
  position: relative;
  margin-bottom: 72px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: -40px;
  top: 8px;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-accent);
}

.timeline-content h2 {
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.timeline-content p {
  font-size: 1.0625rem;
  font-weight: 300;
  line-height: 2.0;
  color: var(--color-text);
  margin-bottom: 16px;
}

.timeline-content p:last-child {
  margin-bottom: 0;
}

.timeline-year {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.story-connection {
  margin-top: 20px;
  padding: 20px 24px;
  background: var(--color-surface);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 6px 6px 0;
  font-size: 0.9375rem;
  font-weight: 300;
  line-height: 1.9;
  color: var(--color-text);
}

.connection-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.about-thread {
  margin-top: 16px;
}

.sp-hide {
  display: inline;
}

@media (max-width: 768px) {
  .timeline {
    padding-left: 32px;
  }

  .timeline-marker {
    left: -32px;
    width: 13px;
    height: 13px;
  }

  .timeline-content h2 {
    font-size: 1.125rem;
  }

  .story-connection {
    padding: 16px 20px;
  }

  .sp-hide {
    display: none;
  }
}


/* ============================================
   Philosophy — Steps
   ============================================ */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 56px;
}

.step-item {
  text-align: center;
  padding: 32px 16px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-family: var(--font-en);
  font-size: 1.125rem;
  font-weight: 400;
  margin-bottom: 16px;
}

.step-item h3 {
  font-size: 1.0625rem;
  font-weight: 400;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.step-item p {
  font-size: 0.9375rem;
  font-weight: 300;
  line-height: 1.8;
  color: var(--color-text);
}

@media (max-width: 1023px) {
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

/* --- Field Detail (Philosophy page) --- */
.field-detail {
  margin-bottom: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--color-surface-dark);
}

.field-detail:last-of-type {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.field-detail h3 {
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.field-detail p {
  font-size: 1.0625rem;
  font-weight: 300;
  line-height: 2.0;
  color: var(--color-text);
}


/* ============================================
   Projects — Field Cards (detail version)
   ============================================ */
.project-field {
  margin-bottom: 56px;
}

.project-field:last-of-type {
  margin-bottom: 0;
}

.project-field-header {
  margin-bottom: 24px;
}

.project-field-header .field-label {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  margin-right: 16px;
}

.project-field-header .field-catchphrase {
  display: inline-block;
  font-size: 1rem;
  font-weight: 300;
  color: var(--color-text);
}

.project-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.project-card {
  background: var(--color-surface);
  border-radius: 8px;
  padding: 28px;
  border-left: 3px solid transparent;
  transition:
    border-left-color var(--transition-base),
    background var(--transition-base);
}

.project-card:hover {
  border-left-color: var(--color-accent);
  background: var(--color-bg);
}

.project-card h3 {
  font-size: 1.0625rem;
  font-weight: 400;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.project-card p {
  font-size: 0.9375rem;
  font-weight: 300;
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: 8px;
}

.project-card .cta-link {
  font-size: 0.875rem;
  margin-top: 8px;
}

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


/* ============================================
   Books — Detail Cards
   ============================================ */
.book-list {
  margin-bottom: 24px;
}

.book-detail-card {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 28px;
  align-items: start;
  padding: 28px 0;
  border-bottom: 1px solid var(--color-surface-dark);
}

.book-detail-card:last-child {
  border-bottom: none;
}

.book-detail-cover {
  width: 120px;
  aspect-ratio: 7 / 10;
  background: var(--color-surface-dark);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--color-primary-light);
  line-height: 1.4;
  padding: 8px;
  text-align: center;
}

.book-detail-info h3 {
  font-size: 1.125rem;
  font-weight: 400;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.book-meta {
  font-size: 0.8125rem;
  font-weight: 300;
  color: var(--color-primary-light);
  margin-bottom: 12px;
}

.book-detail-info > p:last-child {
  font-size: 0.9375rem;
  font-weight: 300;
  line-height: 1.8;
  color: var(--color-text);
}

@media (max-width: 768px) {
  .book-detail-card {
    grid-template-columns: 90px 1fr;
    gap: 20px;
  }

  .book-detail-cover {
    width: 90px;
  }
}


/* ============================================
   Contact — Grid
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.contact-card {
  background: var(--color-surface);
  border-radius: 8px;
  padding: 32px;
  text-align: center;
  border-top: 3px solid var(--color-accent);
}

.contact-card h3 {
  font-size: 1.125rem;
  font-weight: 400;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.contact-card p {
  font-size: 0.9375rem;
  font-weight: 300;
  line-height: 1.8;
  color: var(--color-text);
}

.contact-card .cta-primary {
  font-size: 0.875rem;
  padding: 12px 28px;
}

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