:root {
  --blue:         #005AAB;
  --blue-dark:    #368AD5;
  --blue-deeper:  #003F78;
  --blue-vivid:   #0A70E3;
  --blue-light:   #EBF4FC;
  --white:        #ffffff;
  --off-white:    #F9F9F8;
  --gray-100:     #D0D0D9;
  --gray-200:     #9EAAB1;
  --gray-400:     #656568;
  --gray-600:     #5F6368;
  --text:         #191A1C;
  --sans:         "Gen Interface JP", Helvetica, "Hiragino Sans", "Noto Sans JP", sans-serif;
  --sans-bold:    "Gen Interface JP-Bold", Helvetica, "Hiragino Sans", "Noto Sans JP", sans-serif;
  --transition:   0.18s ease;
}

@font-face { font-family: "Gen Interface JP"; src: url("/fonts/gen-interface-jp/GenInterfaceJP-Regular.woff2") format("woff2"), local("Gen Interface JP"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Gen Interface JP-Bold"; src: url("/fonts/gen-interface-jp/GenInterfaceJP-Bold.woff2") format("woff2"), local("Gen Interface JP-Bold"); font-weight: 700; font-display: swap; }

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
a { text-decoration: none; color: inherit; }
body { font-family: var(--sans); font-size: 18px; line-height: 1.8; color: var(--text); background: var(--white); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

.img-cover { width: 100%; height: 100%; object-fit: cover; display: block; }

.breadcrumb { background: transparent; border-bottom: none; padding: 0; }
.breadcrumb__inner {
  max-width: 1200px; margin: 0 auto; padding: 12px 48px;
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; color: var(--gray-600);
}
.breadcrumb a { color: var(--blue); text-decoration: underline; transition: color var(--transition); }
.breadcrumb a:hover { color: var(--blue-dark); }
.breadcrumb__sep { color: var(--gray-400); font-size: 11px; }
.breadcrumb__cur { color: var(--text); font-weight: 500; }

.page-hero {
  background: var(--blue);
  aspect-ratio: 16 / 5;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}
.page-hero__bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center; background-repeat: no-repeat;
  opacity: 0.75;
}
.page-hero__inner {
  max-width: 1200px; margin: 0 auto; padding: 0 48px 40px;
  position: relative; z-index: 1; width: 100%;
}
.page-hero__title {
  font-size: 48px; font-weight: 800; color: #fff;
  letter-spacing: -0.02em; line-height: 1.2; margin-bottom: 10px;
}

.page-layout { max-width: 1200px; margin: 0 auto; padding: 56px 48px; }
.page-main { min-width: 0; }
.page-main > .content-section { margin-top: 120px; }
.page-main > :first-child { margin-top: 0 !important; }

.content-section { margin-bottom: 56px; }
.content-section__title {
  font-size: 36px; font-weight: 700; color: var(--text);
  letter-spacing: -0.02em;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--text);
  margin-bottom: 28px;
}
.section-title-underline {
  display: block;
  font-size: 36px; font-weight: 700; color: var(--text);
  letter-spacing: -0.02em;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--text);
  margin-bottom: 28px;
}

.merits-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.merit-card { border: 1px solid var(--gray-200); background: var(--white); overflow: hidden; }
.merit-card__point {
  display: inline-flex; align-items: flex-end; gap: 6px;
  background: #E8344E; color: #fff;
  font-family: var(--sans);
  font-size: 16px; font-weight: 600;
  padding: 10px 18px;
  letter-spacing: 0.06em;
}
.merit-card__point .point-num {
  font-size: 32px; font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1;
}
.merit-card__body { padding: 18px 20px 20px; }
.about-section__desc { font-size: 18px; color: var(--text); line-height: 1.85; max-width: 56em; }
.merit-card__title { font-size: 24px; font-weight: 700; color: var(--text); margin-bottom: 10px; line-height: 1.4; }
.merit-card__desc { font-size: 18px; color: var(--text); line-height: 1.75; }

.courses-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.course-card { border: 1px solid var(--gray-200); overflow: hidden; display: flex; flex-direction: column; }
.course-card__img {
  aspect-ratio: 2 / 1;
  background: var(--gray-100);
  display: flex; align-items: center; justify-content: center;
  color: var(--gray-400); font-size: 18px;
  border-bottom: 1px solid var(--gray-200);
}
.course-card__body { padding: 18px 18px 20px; flex: 1; display: flex; flex-direction: column; }
.course-card__title { font-size: 24px; font-weight: 700; color: var(--text); margin-bottom: 8px; line-height: 1.4; letter-spacing: -0.01em; }
.course-card__desc { font-size: 18px; color: var(--text); line-height: 1.75; margin-bottom: 14px; flex: 1; }
.course-card__actions { display: flex; gap: 8px; }
.btn-detail {
  flex: 1; padding: 10px; text-align: center;
  background: var(--blue); color: #fff;
  font-size: 18px; font-weight: 600; text-decoration: none;
  transition: background var(--transition);
  border-radius: 100px;
}
.btn-detail:hover { background: var(--blue-dark); }

@media (max-width: 768px) {
  .page-layout { padding: 32px 20px; }
  .merits-grid { grid-template-columns: 1fr; }
  .courses-grid { grid-template-columns: 1fr; }
  .ticket-banners { grid-template-columns: 1fr; }
  .content-section__title { font-size: 24px !important; }
  .section-title-underline { font-size: 24px !important; }
  .page-hero__inner { padding: 0 20px 24px; }
  .page-hero__title { font-size: 28px; }
  .about-section__desc { font-size: 12px; }
  .merit-card__title { font-size: 16px; }
  .merit-card__desc { font-size: 12px; }
  .course-card__title { font-size: 16px; }
  .course-card__desc { font-size: 12px; }
  .breadcrumb__inner {
    padding: 10px 20px;
    font-size: 10px;
    flex-wrap: wrap;
  }
  .page-main > .content-section { margin-top: 48px; }
  .page-main > :first-child { margin-top: 0 !important; }
  .btn-detail { font-size: 16px; }
}