/* =============================================
   NOBUTAKA OHIRA - Official Site
   Design: Navy × Grey × Orange
   ============================================= */

/* ---------- Variables ---------- */
:root {
  --navy:        #002538;
  --navy-mid:    #003a56;
  --navy-light:  #005070;
  --orange:      #c8622a;
  --orange-light:#d4742e;
  --grey:        #8a9ab0;
  --grey-light:  #b0bcc8;
  --bg-light:    #f4f6f8;
  --bg-white:    #9C9287;
  --text-dark:   #1a2535;
  --text-mid:    #4a5568;
  --text-light:  #8a9ab0;
  --border:      #dde3ec;

  --font-serif-en: 'EB Garamond', serif;
  --font-serif-jp: 'Noto Serif JP', serif;
  --font-sans:     'Inter', sans-serif;

  --transition: 0.4s ease;
  --radius: 2px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-serif-jp);
  color: var(--text-dark);
  background: var(--bg-white);
  overflow-x: hidden;
  line-height: 1.8;
}
img { display: block; width: 100%; height: auto; object-fit: cover; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }

/* ---------- Loading Screen ---------- */
.loading {
  position: fixed;
  inset: 0;
  background: var(--navy);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}
.loading.hidden { opacity: 0; visibility: hidden; }
.loading-logo {
  color: var(--bg-white);
  font-family: var(--font-serif-en);
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  opacity: 0;
  animation: fadeIn 1s ease 0.3s forwards;
}
.loading-sub {
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: var(--orange);
  margin-top: 0.5rem;
  text-align: center;
  opacity: 0;
  animation: fadeIn 1s ease 0.6s forwards;
}
@keyframes fadeIn { to { opacity: 1; } }

/* ---------- Header ---------- */
#site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 40px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--transition), box-shadow var(--transition);
}
#site-header.scrolled {
  background: rgba(13, 31, 60, 0.97);
  box-shadow: 0 1px 20px rgba(0,0,0,0.3);
}
.header-logo a {
  font-family: var(--font-serif-en);
  font-size: 1rem;
  letter-spacing: 0.2em;
  color: var(--bg-white);
  text-transform: uppercase;
  font-weight: 500;
}
.header-logo span {
  display: block;
  font-size: 0.55rem;
  letter-spacing: 0.35em;
  color: var(--orange);
  margin-top: 2px;
}
.header-nav { display: flex; align-items: center; gap: 36px; }
.header-nav a {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.85);
  text-transform: uppercase;
  position: relative;
  transition: color var(--transition);
}
.header-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--orange);
  transition: width var(--transition);
}
.header-nav a:hover { color: var(--bg-white); }
.header-nav a:hover::after { width: 100%; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none; border: none;
}
.hamburger span {
  display: block; width: 24px; height: 1px;
  background: var(--bg-white);
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* Mobile Nav */
.mobile-nav {
  position: fixed;
  inset: 0;
  background: var(--navy);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}
.mobile-nav.open { opacity: 1; visibility: visible; }
.mobile-nav a {
  font-family: var(--font-serif-en);
  font-size: 1.4rem;
  letter-spacing: 0.2em;
  color: var(--bg-white);
  text-transform: uppercase;
  transition: color var(--transition);
}
.mobile-nav a:hover { color: var(--orange); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
  background: var(--navy);
}
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.8s ease-in-out;
}
.hero-slide.active { opacity: 1; }
.hero-slide img {
  width: 100%; height: 100%;
  object-fit: cover;
  transform: scale(1.05);
  transition: transform 8s ease-out;
}
.hero-slide.active img { transform: scale(1); }
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(13,31,60,0.65) 0%,
    rgba(13,31,60,0.3) 60%,
    rgba(13,31,60,0.5) 100%
  );
}
.hero-content {
  position: absolute;
  bottom: 14%;
  left: 8%;
  color: var(--bg-white);
  z-index: 2;
}
.hero-tagline {
  font-family: var(--font-sans);
  font-size: clamp(0.6rem, 1vw, 0.75rem);
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 1rem;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 1s ease 0.5s, transform 1s ease 0.5s;
}
.hero-name {
  font-family: var(--font-serif-en);
  font-size: clamp(2.8rem, 6vw, 5.5rem);
  font-weight: 400;
  letter-spacing: 0.05em;
  line-height: 1.1;
  margin-bottom: 0.8rem;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 1s ease 0.7s, transform 1s ease 0.7s;
}
.hero-name-jp {
  font-family: var(--font-serif-jp);
  font-size: clamp(1rem, 2vw, 1.5rem);
  font-weight: 300;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.8);
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 1s ease 0.9s, transform 1s ease 0.9s;
}
.hero-desc {
  font-family: var(--font-serif-jp);
  font-size: clamp(0.75rem, 1.2vw, 0.9rem);
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.75);
  max-width: 380px;
  line-height: 2;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 1s ease 1.1s, transform 1s ease 1.1s;
}
.hero-content.loaded .hero-tagline,
.hero-content.loaded .hero-name,
.hero-content.loaded .hero-name-jp,
.hero-content.loaded .hero-desc {
  opacity: 1;
  transform: translateY(0);
}

/* Hero scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.6);
  font-family: var(--font-sans);
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
}
.hero-scroll-line {
  width: 1px;
  height: 50px;
  background: rgba(255,255,255,0.3);
  position: relative;
  overflow: hidden;
}
.hero-scroll-line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--orange);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { top: -100%; }
  100% { top: 100%; }
}

/* Hero dots */
.hero-dots {
  position: absolute;
  bottom: 40px;
  right: 8%;
  z-index: 2;
  display: flex;
  gap: 8px;
}
.hero-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  cursor: pointer;
  transition: background var(--transition);
}
.hero-dot.active { background: var(--orange); }

/* ---------- Section Base ---------- */
.section { padding: 100px 0; }
.section-sm { padding: 60px 0; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 40px; }
.wrap-wide { max-width: 1400px; margin: 0 auto; padding: 0 40px; }
.wrap-narrow { max-width: 900px; margin: 0 auto; padding: 0 40px; }

.section-label {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 1rem;
  display: block;
}
.section-title {
  font-family: var(--font-serif-en);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 400;
  letter-spacing: 0.04em;
  line-height: 1.15;
  color: var(--navy);
  margin-bottom: 0.5rem;
}
.section-title-jp {
  font-family: var(--font-serif-jp);
  font-size: clamp(0.8rem, 1.5vw, 1rem);
  font-weight: 300;
  letter-spacing: 0.2em;
  color: var(--text-mid);
  margin-bottom: 2rem;
}
.section-body {
  font-family: var(--font-serif-jp);
  font-size: clamp(0.85rem, 1.3vw, 0.95rem);
  line-height: 2.2;
  color: var(--text-mid);
}

/* ---------- Intro Section ---------- */
.intro {
  background: var(--navy);
  padding: 80px 0;
  text-align: center;
}
.intro p {
  font-family: var(--font-serif-jp);
  font-size: clamp(0.9rem, 1.5vw, 1.05rem);
  line-height: 2.4;
  color: rgba(255,255,255,0.82);
  letter-spacing: 0.08em;
  max-width: 680px;
  margin: 0 auto;
}
.intro-en {
  font-family: var(--font-serif-en);
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--orange);
  margin-bottom: 2rem;
  display: block;
}

/* ---------- Split Section (Image + Text) ---------- */
.split { display: flex; align-items: stretch; min-height: 560px; }
.split-reverse { flex-direction: row-reverse; }
.split-image {
  flex: 0 0 55%;
  position: relative;
  overflow: hidden;
}
.split-image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}
.split-image:hover img { transform: scale(1.03); }
.split-text {
  flex: 0 0 45%;
  display: flex;
  align-items: center;
  padding: 60px 64px;
}
.split-text-inner { max-width: 480px; }
.split-bg-light .split-text { background: var(--bg-light); }
.split-bg-navy .split-text { background: var(--navy); }
.split-bg-navy .section-title { color: var(--bg-white); }
.split-bg-navy .section-title-jp { color: var(--grey); }
.split-bg-navy .section-body { color: rgba(255,255,255,0.72); }

/* ---------- Arrow Link ---------- */
.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 2.5rem;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--navy);
  position: relative;
  padding-bottom: 4px;
}
.arrow-link::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1px;
  background: var(--orange);
  transition: width 0.4s ease;
}
.arrow-link:hover::after { width: 100%; }
.arrow-link:hover { color: var(--orange); }
.arrow-link-white { color: rgba(255,255,255,0.85); }
.arrow-link-white:hover { color: var(--orange); }
.arrow-icon {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid currentColor;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: background 0.3s ease, border-color 0.3s ease;
}
.arrow-link:hover .arrow-icon {
  background: var(--orange);
  border-color: var(--orange);
  color: white;
}
.arrow-icon svg { width: 12px; height: 12px; }

/* ---------- Stats / Numbers ---------- */
.stats { background: var(--bg-light); padding: 80px 0; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
}
.stat-item {
  background: var(--bg-white);
  padding: 50px 30px;
  text-align: center;
  position: relative;
}
.stat-item::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 2px; height: 0;
  background: var(--orange);
  transition: height 0.6s ease;
}
.stat-item:hover::before { height: 40px; }
.stat-number {
  font-family: var(--font-serif-en);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 400;
  color: var(--navy);
  line-height: 1;
  margin-bottom: 0.5rem;
}
.stat-number span {
  font-size: 0.5em;
  color: var(--orange);
  vertical-align: super;
}
.stat-label {
  font-family: var(--font-serif-jp);
  font-size: 0.8rem;
  color: var(--text-mid);
  letter-spacing: 0.1em;
}
.stat-label-en {
  font-family: var(--font-sans);
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  color: var(--text-light);
  text-transform: uppercase;
  margin-top: 4px;
}

/* ---------- Books Section ---------- */
.books-section { background: var(--bg-white); padding: 100px 0; }
.books-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
  margin-top: 60px;
}
.book-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.book-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.15);
}
.book-item img { width: 100%; aspect-ratio: 2/3; object-fit: cover; }
.book-item-overlay {
  position: absolute;
  inset: 0;
  background: rgba(13,31,60,0.85);
  opacity: 0;
  transition: opacity 0.3s ease;
  display: flex;
  align-items: flex-end;
  padding: 20px 16px;
}
.book-item:hover .book-item-overlay { opacity: 1; }
.book-item-title {
  font-family: var(--font-serif-jp);
  font-size: 0.78rem;
  color: var(--bg-white);
  line-height: 1.6;
}

/* ---------- Media Section ---------- */
.media-section { background: var(--navy); padding: 100px 0; }
.media-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-top: 60px;
}
.media-item {
  background: rgba(255,255,255,0.04);
  padding: 40px 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
  transition: background var(--transition);
}
.media-item:hover { background: rgba(255,255,255,0.07); }
.media-date {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--orange);
  margin-bottom: 0.8rem;
}
.media-cat {
  font-family: var(--font-sans);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--grey);
  margin-bottom: 1rem;
  padding: 3px 8px;
  border: 1px solid rgba(255,255,255,0.15);
  display: inline-block;
}
.media-title {
  font-family: var(--font-serif-jp);
  font-size: 0.88rem;
  color: rgba(255,255,255,0.85);
  line-height: 1.8;
}

/* ---------- CTA Section ---------- */
.cta-section {
  background: var(--bg-light);
  padding: 120px 0;
  text-align: center;
}
.cta-section .section-title { color: var(--navy); margin-bottom: 1.5rem; }
.cta-section p {
  font-family: var(--font-serif-jp);
  font-size: 0.9rem;
  color: var(--text-mid);
  line-height: 2.2;
  margin-bottom: 3rem;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 18px 48px;
  background: var(--navy);
  color: var(--bg-white);
  font-family: var(--font-sans);
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  border: 1px solid var(--navy);
  transition: background var(--transition), color var(--transition);
}
.btn-primary:hover { background: var(--orange); border-color: var(--orange); }
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 18px 48px;
  background: transparent;
  color: var(--navy);
  font-family: var(--font-sans);
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  border: 1px solid var(--navy);
  transition: background var(--transition), color var(--transition);
}
.btn-outline:hover { background: var(--navy); color: var(--bg-white); }

/* ---------- Footer ---------- */
footer {
  background: var(--navy);
  padding: 80px 0 40px;
  color: rgba(255,255,255,0.6);
}
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}
.footer-brand-name {
  font-family: var(--font-serif-en);
  font-size: 1.1rem;
  letter-spacing: 0.2em;
  color: var(--bg-white);
  margin-bottom: 0.4rem;
}
.footer-brand-sub {
  font-family: var(--font-sans);
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  color: var(--orange);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.footer-bio {
  font-family: var(--font-serif-jp);
  font-size: 0.78rem;
  line-height: 2;
  color: rgba(255,255,255,0.5);
}
.footer-nav-title {
  font-family: var(--font-sans);
  font-size: 0.6rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 1.5rem;
}
.footer-nav-list { display: flex; flex-direction: column; gap: 12px; }
.footer-nav-list a {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  transition: color var(--transition);
}
.footer-nav-list a:hover { color: var(--orange); }
.footer-bottom {
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-copy {
  font-family: var(--font-sans);
  font-size: 0.62rem;
  letter-spacing: 0.15em;
  color: rgba(255,255,255,0.35);
}

/* ---------- Scroll Animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.15s; }
.reveal-delay-2 { transition-delay: 0.3s; }
.reveal-delay-3 { transition-delay: 0.45s; }
.reveal-delay-4 { transition-delay: 0.6s; }

/* ---------- Page Hero (inner pages) ---------- */
.page-hero {
  position: relative;
  height: 50vh;
  min-height: 400px;
  background: var(--navy);
  display: flex;
  align-items: flex-end;
  padding-bottom: 60px;
  overflow: hidden;
}
.page-hero-bg {
  position: absolute;
  inset: 0;
  opacity: 0.3;
}
.page-hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(13,31,60,0.3), rgba(13,31,60,0.85));
}
.page-hero-content { position: relative; z-index: 2; color: var(--bg-white); }
.page-hero-label {
  font-family: var(--font-sans);
  font-size: 0.6rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 1rem;
}
.page-hero-title {
  font-family: var(--font-serif-en);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 400;
  letter-spacing: 0.05em;
  line-height: 1.1;
}
.page-hero-title-jp {
  font-family: var(--font-serif-jp);
  font-size: 1rem;
  font-weight: 300;
  letter-spacing: 0.25em;
  color: rgba(255,255,255,0.65);
  margin-top: 0.5rem;
}

/* ---------- About Page ---------- */
.profile-section { padding: 100px 0; }
.profile-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}
.profile-img-wrap { position: sticky; top: 100px; }
.profile-img-wrap img { width: 100%; aspect-ratio: 3/4; object-fit: cover; }
.profile-img-caption {
  font-family: var(--font-sans);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  color: var(--text-light);
  margin-top: 1rem;
  text-align: center;
}
.profile-heading {
  font-family: var(--font-serif-en);
  font-size: 2rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--navy);
  margin-bottom: 0.3rem;
}
.profile-heading-jp {
  font-family: var(--font-serif-jp);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--orange);
  margin-bottom: 2rem;
}
.profile-text {
  font-family: var(--font-serif-jp);
  font-size: 0.92rem;
  line-height: 2.3;
  color: var(--text-mid);
  margin-bottom: 2rem;
}
.profile-career { margin-top: 3rem; }
.career-title {
  font-family: var(--font-sans);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 1.5rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--border);
}
.career-item {
  display: flex;
  gap: 24px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}
.career-year {
  flex-shrink: 0;
  font-family: var(--font-serif-en);
  font-size: 0.85rem;
  color: var(--navy);
  min-width: 60px;
}
.career-desc {
  font-family: var(--font-serif-jp);
  font-size: 0.85rem;
  color: var(--text-mid);
  line-height: 1.8;
}

/* ---------- Philosophy Page ---------- */
.philosophy-intro { background: var(--navy); padding: 100px 0; text-align: center; }
.philosophy-intro .section-title { color: var(--bg-white); }
.philosophy-intro .section-title-jp { color: rgba(255,255,255,0.5); }
.philosophy-intro .section-body { color: rgba(255,255,255,0.72); max-width: 680px; margin: 0 auto; }
.philosophy-blocks { padding: 0; }
.philosophy-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 500px;
}
.philosophy-block:nth-child(even) .pb-image { order: 2; }
.philosophy-block:nth-child(even) .pb-text { order: 1; }
.pb-image { overflow: hidden; }
.pb-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.8s ease; }
.pb-image:hover img { transform: scale(1.03); }
.pb-text {
  padding: 70px 64px;
  display: flex;
  align-items: center;
}
.pb-text-inner { max-width: 460px; }
.pb-number {
  font-family: var(--font-serif-en);
  font-size: 4rem;
  font-weight: 400;
  color: var(--border);
  line-height: 1;
  margin-bottom: 0.5rem;
}
.pb-title {
  font-family: var(--font-serif-jp);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
}
.pb-title-en {
  font-family: var(--font-serif-en);
  font-size: 0.75rem;
  color: var(--orange);
  letter-spacing: 0.2em;
  margin-bottom: 1.5rem;
}
.pb-body {
  font-family: var(--font-serif-jp);
  font-size: 0.88rem;
  line-height: 2.2;
  color: var(--text-mid);
}
.philosophy-block:nth-child(even) .pb-text { background: var(--bg-light); }

/* ---------- Books Page ---------- */
.books-page { padding: 100px 0; }
.books-page-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-top: 60px;
}
.book-card {
  display: flex;
  flex-direction: column;
}
.book-cover {
  position: relative;
  overflow: hidden;
  box-shadow: 0 6px 24px rgba(0,0,0,0.12);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}
.book-cover:hover {
  box-shadow: 0 16px 48px rgba(0,0,0,0.2);
  transform: translateY(-4px);
}
.book-cover img { width: 100%; aspect-ratio: 2/3; object-fit: cover; }
.book-info { padding: 20px 0; }
.book-title {
  font-family: var(--font-serif-jp);
  font-size: 0.88rem;
  color: var(--navy);
  line-height: 1.7;
  margin-bottom: 0.5rem;
  font-weight: 600;
}
.book-publisher {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  color: var(--text-light);
  letter-spacing: 0.1em;
}

/* ---------- Media Page ---------- */
.media-page { padding: 100px 0; }
.media-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 60px;
  border-bottom: 1px solid var(--border);
}
.media-tab {
  padding: 14px 28px;
  font-family: var(--font-sans);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-light);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color var(--transition), border-color var(--transition);
}
.media-tab.active { color: var(--navy); border-bottom-color: var(--orange); }
.media-tab-content { display: none; }
.media-tab-content.active { display: block; }
.media-list { display: flex; flex-direction: column; gap: 2px; }
.media-list-item {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
  transition: padding-left var(--transition);
}
.media-list-item:hover { padding-left: 8px; }
.media-list-year {
  flex-shrink: 0;
  font-family: var(--font-serif-en);
  font-size: 0.8rem;
  color: var(--navy);
  min-width: 60px;
}
.media-list-cat {
  flex-shrink: 0;
  font-family: var(--font-sans);
  font-size: 0.58rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--orange);
  min-width: 80px;
}
.media-list-title {
  font-family: var(--font-serif-jp);
  font-size: 0.88rem;
  color: var(--text-mid);
  line-height: 1.7;
}

/* ---------- Contact Page ---------- */
.contact-section { padding: 100px 0; }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 80px;
  align-items: start;
}
.contact-info h3 {
  font-family: var(--font-serif-en);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--navy);
  margin-bottom: 1.5rem;
}
.contact-info p {
  font-family: var(--font-serif-jp);
  font-size: 0.88rem;
  line-height: 2.2;
  color: var(--text-mid);
  margin-bottom: 2rem;
}
.contact-detail {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--text-mid);
  margin-bottom: 0.5rem;
}
.contact-detail strong {
  display: block;
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 4px;
}
.contact-form-group {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-field { display: flex; flex-direction: column; gap: 8px; }
.form-label {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--navy);
}
.form-label .required {
  color: var(--orange);
  margin-left: 4px;
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  background: var(--bg-white);
  font-family: var(--font-serif-jp);
  font-size: 0.88rem;
  color: var(--text-dark);
  outline: none;
  border-radius: var(--radius);
  transition: border-color var(--transition);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--navy);
}
.form-textarea { resize: vertical; min-height: 160px; }
.form-submit {
  margin-top: 8px;
  padding: 18px 60px;
  background: var(--navy);
  color: var(--bg-white);
  border: 1px solid var(--navy);
  font-family: var(--font-sans);
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background var(--transition);
  align-self: flex-start;
}
.form-submit:hover { background: var(--orange); border-color: var(--orange); }
.form-note {
  font-family: var(--font-serif-jp);
  font-size: 0.75rem;
  color: var(--text-light);
  line-height: 1.8;
  margin-top: 8px;
}

/* ---------- Divider Line ---------- */
.divider {
  width: 40px; height: 1px;
  background: var(--orange);
  margin: 2rem 0;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .books-grid { grid-template-columns: repeat(4, 1fr); }
  .books-page-grid { grid-template-columns: repeat(3, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  #site-header { padding: 0 24px; }
  .header-nav { display: none; }
  .hamburger { display: flex; }
  .wrap, .wrap-wide, .wrap-narrow { padding: 0 24px; }
  .section { padding: 70px 0; }

  .split { flex-direction: column; }
  .split-reverse { flex-direction: column; }
  .split-image { flex: none; height: 55vw; }
  .split-text { flex: none; padding: 40px 24px; }
  .split-text-inner { max-width: 100%; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .media-grid { grid-template-columns: 1fr; }
  .books-grid { grid-template-columns: repeat(2, 1fr); }
  .books-page-grid { grid-template-columns: repeat(2, 1fr); }

  .profile-grid { grid-template-columns: 1fr; gap: 40px; }
  .profile-img-wrap { position: static; }
  .philosophy-block { grid-template-columns: 1fr; }
  .philosophy-block:nth-child(even) .pb-image { order: 0; }
  .philosophy-block:nth-child(even) .pb-text { order: 0; }
  .pb-text { padding: 40px 24px; }
  .pb-text-inner { max-width: 100%; }

  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }

  .hero-content { left: 5%; bottom: 15%; }
  .page-hero { height: 40vh; min-height: 300px; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .books-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .books-page-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}