/* ===========================
   KISHI SEMINAR ABR JOURNAL
   Main Stylesheet
=========================== */

:root {
  --color-bg: #f8f6f1;
  --color-bg-dark: #1a1612;
  --color-ink: #1e1c18;
  --color-ink-mid: #4a4540;
  --color-ink-light: #8a857c;
  --color-accent: #8b3a2a;
  --color-accent-light: #c4634f;
  --color-gold: #b89a5a;
  --color-gold-light: #d4b87a;
  --color-special: #2a4a6b;
  --color-special-light: #4a7ab5;
  --color-border: #ddd8cf;
  --font-serif-ja: 'Noto Serif JP', serif;
  --font-sans-ja: 'Noto Sans JP', sans-serif;
  --font-serif-en: 'Cormorant Garamond', 'EB Garamond', Georgia, serif;
  --max-width: 1100px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-serif-ja);
  background-color: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.8;
  font-size: 16px;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ===========================
   SITE HEADER
=========================== */
.site-header {
  background-color: var(--color-bg-dark);
  color: #f0ece4;
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(0,0,0,0.3);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.4rem 2rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.header-label {
  font-family: var(--font-sans-ja);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--color-gold-light);
  margin-bottom: 0.3rem;
}

.site-title {
  font-family: var(--font-serif-en);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 400;
  letter-spacing: 0.06em;
  line-height: 1.3;
  color: #f0ece4;
}

.abr-highlight {
  color: var(--color-gold-light);
  font-style: italic;
}

.header-sub {
  font-family: var(--font-serif-en);
  font-size: 0.75rem;
  color: var(--color-ink-light);
  letter-spacing: 0.15em;
  margin-top: 0.3rem;
}

/* ===========================
   NAVIGATION
=========================== */
.main-nav {
  background-color: rgba(255,255,255,0.05);
  border-top: 1px solid rgba(255,255,255,0.1);
}

.main-nav ul {
  max-width: var(--max-width);
  margin: 0 auto;
  list-style: none;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0;
}

.main-nav ul li a {
  display: block;
  padding: 0.65rem 1.2rem;
  font-family: var(--font-sans-ja);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: #c8c0b4;
  transition: color 0.2s, background-color 0.2s;
  border-bottom: 2px solid transparent;
}

.main-nav ul li a:hover,
.main-nav ul li a.active {
  color: var(--color-gold-light);
  border-bottom-color: var(--color-gold-light);
}

/* ===========================
   HERO
=========================== */
.hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, #1a1612 0%, #2d2318 40%, #3a2e1e 70%, #1a1612 100%);
  overflow: hidden;
  text-align: center;
  color: #f0ece4;
}

.hero-bg-text {
  position: absolute;
  font-family: var(--font-serif-en);
  font-size: clamp(10rem, 30vw, 22rem);
  font-weight: 600;
  color: rgba(255,255,255,0.025);
  letter-spacing: 0.1em;
  pointer-events: none;
  user-select: none;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  white-space: nowrap;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  padding: 4rem 2rem;
}

.hero-label {
  font-family: var(--font-serif-en);
  font-size: 0.9rem;
  letter-spacing: 0.3em;
  color: var(--color-gold-light);
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

.hero-title {
  font-family: var(--font-serif-ja);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 300;
  line-height: 1.6;
  margin-bottom: 1.6rem;
  letter-spacing: 0.05em;
}

.hero-desc {
  font-family: var(--font-sans-ja);
  font-size: 0.9rem;
  color: #b0a898;
  line-height: 2;
  letter-spacing: 0.05em;
}

/* ===========================
   SECTION COMMONS
=========================== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-label {
  display: inline-block;
  font-family: var(--font-serif-en);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  color: var(--color-accent);
  border-bottom: 1px solid var(--color-accent);
  padding-bottom: 0.2rem;
  margin-bottom: 0.8rem;
}

.section-title {
  font-family: var(--font-serif-ja);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 400;
  color: var(--color-ink);
  letter-spacing: 0.05em;
}

/* ===========================
   ABOUT SECTION
=========================== */
.about-section {
  padding: 6rem 0;
  background-color: var(--color-bg);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: start;
}

.about-text p {
  font-family: var(--font-serif-ja);
  font-size: 1rem;
  color: var(--color-ink-mid);
  line-height: 2;
  margin-bottom: 1.2rem;
}

.about-cards {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.info-card {
  background: white;
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-gold);
  padding: 1.2rem 1.4rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  border-radius: 0 4px 4px 0;
}

.info-card i {
  color: var(--color-gold);
  font-size: 1.2rem;
  margin-top: 0.1rem;
  flex-shrink: 0;
}

.info-card h3 {
  font-family: var(--font-serif-ja);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
  color: var(--color-ink);
}

.info-card p {
  font-family: var(--font-sans-ja);
  font-size: 0.82rem;
  color: var(--color-ink-light);
  line-height: 1.7;
}

/* ===========================
   ISSUES SECTION
=========================== */
.issues-section {
  padding: 6rem 0;
  background-color: #f0ece4;
}

.issues-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.issue-card {
  background: white;
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-accent);
  border-radius: 0 0 4px 4px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  overflow: hidden;
}

.issue-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.12);
}

.issue-card a {
  display: block;
  padding: 2rem;
  height: 100%;
}

.issue-special {
  border-top-color: var(--color-special);
}

.issue-num {
  font-family: var(--font-serif-en);
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.issue-special .issue-num {
  color: var(--color-special);
}

.issue-cohort {
  font-family: var(--font-sans-ja);
  font-size: 0.78rem;
  color: var(--color-ink-light);
  letter-spacing: 0.1em;
  margin-bottom: 0.8rem;
}

.issue-title {
  font-family: var(--font-serif-en);
  font-size: 2.4rem;
  font-weight: 400;
  font-style: italic;
  color: var(--color-ink);
  margin-bottom: 0.8rem;
  line-height: 1.2;
}

.issue-desc {
  font-family: var(--font-sans-ja);
  font-size: 0.85rem;
  color: var(--color-ink-mid);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.issue-link {
  font-family: var(--font-sans-ja);
  font-size: 0.8rem;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.issue-card:hover .issue-link {
  gap: 0.8rem;
}

.issue-special .issue-link {
  color: var(--color-special);
}

/* ===========================
   SITE FOOTER
=========================== */
.site-footer {
  background-color: var(--color-bg-dark);
  color: #f0ece4;
  padding: 3rem 2rem;
  text-align: center;
}

.footer-title {
  font-family: var(--font-serif-en);
  font-size: 1.2rem;
  letter-spacing: 0.1em;
  color: var(--color-gold-light);
  margin-bottom: 0.4rem;
}

.footer-sub {
  font-family: var(--font-serif-en);
  font-size: 0.75rem;
  color: var(--color-ink-light);
  letter-spacing: 0.2em;
  margin-bottom: 1.5rem;
}

.footer-copy {
  font-family: var(--font-sans-ja);
  font-size: 0.72rem;
  color: #5a544c;
  letter-spacing: 0.05em;
}

/* ===========================
   COHORT PAGES (共通)
=========================== */
.cohort-hero {
  background: linear-gradient(160deg, #1a1612 0%, #2d2318 50%, #1a1612 100%);
  color: #f0ece4;
  padding: 5rem 2rem 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cohort-hero-bg {
  position: absolute;
  font-family: var(--font-serif-en);
  font-size: clamp(8rem, 25vw, 18rem);
  font-weight: 600;
  color: rgba(255,255,255,0.03);
  letter-spacing: 0.1em;
  pointer-events: none;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  white-space: nowrap;
}

.cohort-hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
}

.cohort-vol {
  font-family: var(--font-serif-en);
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  color: var(--color-gold-light);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.cohort-name {
  font-family: var(--font-serif-ja);
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 300;
  margin-bottom: 0.6rem;
  letter-spacing: 0.08em;
}

.cohort-abr {
  font-family: var(--font-serif-en);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 400;
  font-style: italic;
  color: var(--color-gold-light);
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

.cohort-tagline {
  font-family: var(--font-sans-ja);
  font-size: 0.88rem;
  color: #a09880;
  line-height: 2;
}

/* ===========================
   COHORT CONTENT
=========================== */
.cohort-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 5rem 2rem;
}

.cohort-intro {
  max-width: 680px;
  margin: 0 auto 4rem;
  text-align: center;
}

.cohort-intro p {
  font-family: var(--font-serif-ja);
  font-size: 1rem;
  color: var(--color-ink-mid);
  line-height: 2.2;
}

.magazine-download {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  margin-top: 1.8rem;
  padding: 1rem 1.35rem;
  border-radius: 999px;
  color: white;
  background: linear-gradient(135deg, var(--color-accent), #9b6f2f);
  box-shadow: 0 10px 28px rgba(122, 83, 37, 0.18);
  text-align: left;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.magazine-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(122, 83, 37, 0.24);
}

.magazine-download i {
  font-size: 1.35rem;
  flex: 0 0 auto;
}

.magazine-download strong,
.magazine-download small {
  display: block;
}

.magazine-download strong {
  font-size: 0.9rem;
  letter-spacing: 0.04em;
}

.magazine-download small {
  margin-top: 0.15rem;
  color: rgba(255,255,255,0.78);
  font-size: 0.72rem;
}

.works-section-title {
  font-family: var(--font-serif-ja);
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--color-ink);
  letter-spacing: 0.1em;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.8rem;
  margin-bottom: 2rem;
}

.works-section-title span {
  font-family: var(--font-serif-en);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  color: var(--color-accent);
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.3rem;
}

/* 作品カード */
.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.8rem;
  margin-bottom: 4rem;
}

.work-card {
  background: white;
  border: 1px solid var(--color-border);
  padding: 1.8rem;
  border-radius: 4px;
  transition: box-shadow 0.2s;
}

.work-card:hover {
  box-shadow: 0 6px 20px rgba(0,0,0,0.08);
}

.work-type {
  font-family: var(--font-serif-en);
  font-size: 0.68rem;
  letter-spacing: 0.25em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 0.6rem;
  padding: 0.2rem 0.6rem;
  background: #fdf3f1;
  border-radius: 2px;
  display: inline-block;
}

.work-title {
  font-family: var(--font-serif-ja);
  font-size: 1.05rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
  color: var(--color-ink);
  line-height: 1.5;
}

.work-author {
  font-family: var(--font-sans-ja);
  font-size: 0.78rem;
  color: var(--color-ink-light);
  margin-bottom: 0.8rem;
  letter-spacing: 0.05em;
}

.work-excerpt {
  font-family: var(--font-serif-ja);
  font-size: 0.9rem;
  color: var(--color-ink-mid);
  line-height: 2;
  border-left: 2px solid var(--color-gold-light);
  padding-left: 0.8rem;
  font-style: italic;
}

.work-note {
  font-family: var(--font-sans-ja);
  font-size: 0.82rem;
  color: var(--color-ink-mid);
  line-height: 1.8;
  margin-top: 0.8rem;
}

.work-video {
  margin-top: 1.2rem;
  overflow: hidden;
  border-radius: 6px;
  background: #000;
  aspect-ratio: 16 / 9;
}

.work-video iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

/* 特集号専用 */
.special-hero {
  background: linear-gradient(160deg, #0d1a2d 0%, #1a2d4a 50%, #0d1a2d 100%);
}

.special-hero .cohort-vol {
  color: var(--color-special-light);
}

.special-hero .cohort-abr {
  color: var(--color-special-light);
}

.special-badge {
  display: inline-block;
  background: var(--color-special);
  color: white;
  font-family: var(--font-serif-en);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 0.3rem 0.8rem;
  border-radius: 2px;
  margin-bottom: 1rem;
}

.work-type.special {
  background: #eef3f9;
  color: var(--color-special);
}

/* ===========================
   BREADCRUMB
=========================== */
.breadcrumb {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 2rem;
  font-family: var(--font-sans-ja);
  font-size: 0.78rem;
  color: var(--color-ink-light);
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.breadcrumb a {
  color: var(--color-accent);
}

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

/* ===========================
   BACK LINK
=========================== */
.back-link-wrap {
  text-align: center;
  padding: 2rem 0 1rem;
}

.back-link {
  font-family: var(--font-sans-ja);
  font-size: 0.85rem;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  border: 1px solid var(--color-accent);
  padding: 0.6rem 1.5rem;
  border-radius: 2px;
  transition: background 0.2s, color 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.back-link:hover {
  background: var(--color-accent);
  color: white;
}

/* ===========================
   SPECIAL ISSUE EXTRAS
=========================== */
.special-theme-block {
  background: linear-gradient(135deg, #eef3f9 0%, #f0f4f8 100%);
  border: 1px solid #c8d8e8;
  border-left: 4px solid var(--color-special);
  padding: 2rem 2.4rem;
  border-radius: 0 4px 4px 0;
  margin-bottom: 2rem;
}

.special-theme-title {
  font-family: var(--font-serif-ja);
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--color-special);
  margin-bottom: 0.8rem;
  letter-spacing: 0.05em;
}

.special-theme-desc {
  font-family: var(--font-sans-ja);
  font-size: 0.9rem;
  color: var(--color-ink-mid);
  line-height: 2;
}

.special-theme-link {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  margin-top: 1.1rem;
  padding: 0.55rem 0;
  color: var(--color-special);
  border-bottom: 1px solid rgba(42, 76, 117, 0.28);
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, gap 0.2s ease;
}

.special-theme-link:hover {
  color: var(--color-accent);
  border-color: rgba(122, 83, 37, 0.45);
  gap: 0.85rem;
}

.special-theme-link strong,
.special-theme-link small {
  display: block;
}

.special-theme-link strong {
  font-family: var(--font-sans-ja);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.special-theme-link small {
  margin-top: 0.08rem;
  color: var(--color-ink-light);
  font-size: 0.68rem;
}

.special-theme-link i {
  font-size: 0.8rem;
  opacity: 0.7;
}

.work-cohort-badge {
  display: inline-block;
  font-family: var(--font-sans-ja);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--color-special);
  background: #eef3f9;
  border: 1px solid #c8d8e8;
  padding: 0.15rem 0.6rem;
  border-radius: 2px;
  margin-bottom: 0.5rem;
}

.editorial-note {
  background: white;
  border: 1px solid var(--color-border);
  padding: 2rem 2.4rem;
  border-radius: 4px;
  margin-bottom: 2rem;
}

.editorial-note p {
  font-family: var(--font-serif-ja);
  font-size: 0.95rem;
  color: var(--color-ink-mid);
  line-height: 2.2;
}

/* 各期生カードの上枠カラー変化 */
#cohort6-card { border-top-color: #7a6a3a; }
#cohort7-card { border-top-color: #3a6a5a; }
#cohort8-card { border-top-color: var(--color-accent); }
#cohort9-card { border-top-color: #4a3a7a; }

/* ===========================
   RESPONSIVE
=========================== */
@media (max-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .main-nav ul li a {
    padding: 0.6rem 0.8rem;
    font-size: 0.72rem;
  }

  .hero {
    min-height: 60vh;
  }

  .hero-title {
    font-size: 1.6rem;
  }

  .cohort-content {
    padding: 3rem 1.2rem;
  }

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

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

@media (max-width: 480px) {
  .header-inner {
    padding: 1rem;
  }

  .site-title {
    font-size: 1.2rem;
  }

  .main-nav ul li a {
    padding: 0.5rem 0.6rem;
    font-size: 0.68rem;
  }
}