/* ============================================================
   Blue Academy — front-page.css (TOP only)
   ============================================================
   依存: base.css (CSS変数), layout.css (header/footer), components.css (btn)
   読み込み: is_front_page() 時のみ
   ============================================================ */

/* TOP固有のレイアウト変数 */
:root {
  --pad-section: 160px;
}

@media (max-width: 968px) {
  :root { --pad-section: 100px; }
}

@media (max-width: 600px) {
  :root { --pad-section: 80px; }
}

/* ============ HERO ============ */
.hero {
  padding: 100px 0 120px;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.hero-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 48px;
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--muted);
  text-transform: uppercase;
}
.hero-meta::before {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--blue);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 80px;
  align-items: end;
}
.hero-title {
  font-family: var(--font-jp);
  font-weight: 900;
  font-size: clamp(64px, 8vw, 112px);
  line-height: 1.02;
  letter-spacing: -0.04em;
  color: var(--ink);
}
.hero-title .accent {
  color: var(--blue);
}
.hero-title .period {
  color: var(--blue);
}
.hero-sub {
  font-size: 18px;
  font-weight: 500;
  color: var(--muted);
  line-height: 1.9;
  margin-top: 40px;
  max-width: 520px;
}
.hero-stats {
  display: flex;
  flex-direction: column;
  gap: 36px;
  border-left: 1px solid var(--border);
  padding-left: 40px;
  padding-bottom: 12px;
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stat-num {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: clamp(56px, 6vw, 80px);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--blue);
  font-variant-numeric: tabular-nums;
}
.stat-num small {
  font-size: 0.5em;
  font-weight: 700;
  margin-left: 4px;
}
.stat-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.08em;
}
.stat-desc {
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
}
.hero-actions {
  margin-top: 64px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.hero-actions .btn {
  padding: 16px 28px;
  font-size: 14px;
}


/* ============ SECTION COMMON ============ */
.section {
  padding: var(--pad-section) 0;
  border-bottom: 1px solid var(--border);
}
.section-head {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 80px;
  margin-bottom: 80px;
  align-items: start;
}
.section-eyebrow {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--blue);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-eyebrow .num {
  font-family: var(--font-en);
  font-size: 11px;
  color: var(--muted);
}
.section-title {
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.03em;
  color: var(--ink);
}
.section-lead {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.9;
  margin-top: 24px;
  max-width: 600px;
}


/* ============ INTRO STRIP ============ */
.intro-strip {
  padding: 80px 0;
  border-bottom: 1px solid var(--border);
  background: var(--soft-bg);
}
.intro-text {
  font-size: clamp(20px, 2vw, 28px);
  font-weight: 700;
  line-height: 1.7;
  letter-spacing: -0.01em;
  max-width: 1000px;
}
.intro-text .blue { color: var(--blue); }


/* ============ STUDENTS ============ */
.students-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}
.student-card {
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 32px 28px 36px;
  display: flex;
  flex-direction: column;
  background: var(--white);
  transition: background 0.15s;
}
.student-card:hover { background: var(--soft-bg); }
.student-photo {
  width: 100%;
  aspect-ratio: 4 / 5;
  background: var(--soft-bg);
  border-radius: 4px;
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}
.student-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 25%;
  display: block;
  filter: saturate(0.9) contrast(1.03);
  transition: filter 0.3s, transform 0.4s;
}
.student-card:hover .student-photo img {
  filter: saturate(1) contrast(1.05);
  transform: scale(1.02);
}
.student-num {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.15em;
  margin-bottom: 8px;
}
.student-uni {
  font-size: 18px;
  font-weight: 900;
  line-height: 1.4;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}
.student-name {
  font-size: 13px;
  color: var(--muted);
  font-weight: 500;
  margin-bottom: 16px;
}
.student-quote {
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink);
  font-weight: 500;
  flex-grow: 1;
}


/* ============ CTA BIG ============ */
.cta-section {
  background: var(--navy);
  color: var(--white);
  padding: 140px 0;
  border-bottom: none;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--blue), transparent);
}
.cta-eyebrow {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  margin-bottom: 24px;
}
.cta-title {
  font-size: clamp(36px, 4vw, 64px);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -0.03em;
  margin-bottom: 32px;
  color: var(--white);
  max-width: 900px;
}
.cta-title .blue { color: #4D94FF; }
.cta-text {
  font-size: 17px;
  color: rgba(255,255,255,0.7);
  line-height: 1.9;
  margin-bottom: 56px;
  max-width: 640px;
  font-weight: 500;
}
.benefits {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 36px;
  margin-bottom: 64px;
}
.benefit-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
}
.benefit-img-wrap {
  width: 100%;
  aspect-ratio: 4 / 5;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  margin-bottom: 28px;
  position: relative;
}
.benefit-img-wrap::before {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 70%;
  height: 22px;
  background: radial-gradient(ellipse at center, rgba(0,0,0,0.55) 0%, transparent 70%);
  filter: blur(8px);
  z-index: 0;
}
.benefit-img-wrap img {
  max-height: 100%;
  width: auto;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 14px 28px rgba(0, 0, 0, 0.4));
}
.benefit-num {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  color: #4D94FF;
  letter-spacing: 0.2em;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.benefit-title {
  font-size: 15px;
  font-weight: 800;
  line-height: 1.55;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
  color: var(--white);
}
.benefit-desc {
  font-size: 12px;
  color: rgba(255,255,255,0.55);
  line-height: 1.8;
  max-width: 240px;
}
.cta-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.btn-cta-primary {
  background: var(--blue);
  color: var(--white);
  padding: 18px 36px;
  font-size: 14px;
}
.btn-cta-primary:hover { background: #1A75FF; }
.btn-cta-line {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.3);
  padding: 18px 36px;
  font-size: 14px;
}
.btn-cta-line:hover { border-color: var(--white); }


/* ============ TEACHERS ============ */
.teachers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.teacher-card {
  border-top: 2px solid var(--ink);
  padding-top: 28px;
}
.teacher-photo {
  width: 100%;
  aspect-ratio: 3 / 4;
  background: var(--soft-bg);
  border-radius: 4px;
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}
.teacher-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(0.9) contrast(1.03);
  transition: filter 0.3s, transform 0.4s;
}
.teacher-card:hover .teacher-photo img {
  filter: saturate(1) contrast(1.05);
  transform: scale(1.02);
}
.teacher-photo--tamura img { object-position: center 30%; }
.teacher-photo--kanzaki img { object-position: center 30%; }
.teacher-photo--mizuno img { object-position: center 30%; }
.teacher-role {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--blue);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.teacher-name {
  font-size: 26px;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.teacher-bio {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.6;
  margin-bottom: 12px;
}
.teacher-desc {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.85;
}


/* ============ NEWS ============ */
.news-list {
  border-top: 1px solid var(--border);
}
.news-item {
  display: grid;
  grid-template-columns: 140px 120px 1fr auto;
  gap: 32px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
  align-items: center;
  transition: background 0.15s;
}
.news-item:hover { background: var(--soft-bg); margin: 0 -24px; padding-left: 24px; padding-right: 24px; }
.news-date {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.05em;
}
.news-cat {
  font-family: var(--font-en);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--blue);
  text-transform: uppercase;
  border: 1px solid var(--blue);
  padding: 4px 10px;
  border-radius: 2px;
  text-align: center;
}
.news-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}
.news-arrow {
  font-family: var(--font-en);
  font-size: 16px;
  color: var(--muted);
}
.news-more {
  margin-top: 48px;
  display: flex;
  justify-content: flex-end;
}




/* base.css の h/p の color 指定を上書き（CTAは紺色背景なので白にする） */
.cta-section h2,
.cta-section .cta-title { color: var(--white); }
.cta-section .cta-text { color: rgba(255, 255, 255, 0.7); }
.cta-section .benefit-title { color: var(--white); }
.cta-section .benefit-desc { color: rgba(255, 255, 255, 0.6); }
.cta-section .benefit-num { color: rgba(255, 255, 255, 0.5); }

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  :root { --pad-section: 100px; }
  .container, .header-inner { padding: 0 24px; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-stats { border-left: none; border-top: 1px solid var(--border); padding-left: 0; padding-top: 32px; flex-direction: row; gap: 48px; }
  .section-head { grid-template-columns: 1fr; gap: 24px; }
  .students-grid { grid-template-columns: repeat(2, 1fr); }
  .teachers-grid { grid-template-columns: 1fr; }
  .benefits { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-list { display: none; }
}
@media (max-width: 640px) {
  :root { --pad-section: 80px; }
  .hero { padding: 60px 0 80px; }
  .hero-stats { flex-direction: column; gap: 24px; }
  .students-grid { grid-template-columns: 1fr; }
  .benefits { grid-template-columns: 1fr; }
  .news-item { grid-template-columns: auto 1fr; gap: 12px; padding: 20px 0; }
  .news-cat { display: none; }
  .news-arrow { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .nav-cta .btn-line { display: none; }
  .header-inner { height: 64px; }
  .btn { padding: 10px 16px; font-size: 12px; }
}

/* ============================================================
   teacher-card を <a> 化したリンクスタイル整備
   ============================================================ */
a.teacher-card {
  text-decoration: none;
  color: inherit;
  display: block;
  cursor: pointer;
  transition: transform 0.2s;
}
a.teacher-card:hover {
  transform: translateY(-4px);
}
a.teacher-card:hover .teacher-name {
  color: var(--blue);
}