/* =========================================================================
   Components
   - Reusable building blocks: header, footer, button, card, badge, etc.
   - Naming: BEM (block__element--modifier)
   ========================================================================= */

/* ---- Site Header ------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: var(--space-5);
}
.site-logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  color: var(--color-text);
}
/* SVG ロゴ：縦横比 302.22 : 49.33（≒ 6.126 : 1）を厳守 */
.site-logo__img {
  height: 28px;        /* PC ヘッダ標準高さ */
  width: auto;         /* width="172" は属性ヒント用、CSS で aspect-ratio が保たれる */
  display: block;
  aspect-ratio: 302.22 / 49.33;
}
@media (max-width: 767px) {
  .site-logo__img { height: 24px; }
}

/* ダーク背景（フッタ・統計セクション）でも視認できるよう白抜き化 */
.section--dark .site-logo__img,
.site-footer .site-logo__img,
.cta-band .site-logo__img {
  filter: brightness(0) invert(1);
}

.global-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.global-nav__list {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0; padding: 0;
  gap: var(--space-5);
}
.global-nav__link {
  position: relative;
  text-decoration: none;
  color: var(--color-text);
  font-size: 0.9375rem;
  font-weight: var(--fw-medium);
  padding-block: 6px;
  transition: color var(--dur-fast) var(--ease-out);
}
.global-nav__link.is-active::after,
.global-nav__link:hover::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: var(--color-accent);
}
.global-nav__link.is-external::before {
  content: "↗";
  margin-right: 4px;
  color: var(--color-text-muted);
  font-size: 0.85em;
}

.global-nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--color-text);
  color: #fff;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: var(--fw-semi);
  transition: background var(--dur-fast) var(--ease-out);
}
@media (hover: hover) {
  .global-nav__cta:hover { background: var(--color-accent); color: #fff; }
}

/* Language toggle */
.lang-toggle {
  display: inline-flex;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: var(--fw-semi);
}
.lang-toggle__item {
  padding: 6px 12px;
  text-decoration: none;
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
}
.lang-toggle__item.is-active {
  background: var(--color-text);
  color: #fff;
}

/* Hamburger (SP) */
.nav-toggle {
  display: none;
  appearance: none;
  background: transparent;
  border: 0;
  width: 44px; height: 44px;
  position: relative;
  cursor: pointer;
}
.nav-toggle__bar,
.nav-toggle__bar::before,
.nav-toggle__bar::after {
  content: "";
  position: absolute;
  left: 12px; right: 12px;
  height: 2px;
  background: var(--color-text);
  transition: transform var(--dur-base) var(--ease-out), top var(--dur-base) var(--ease-out);
}
.nav-toggle__bar { top: 50%; transform: translateY(-50%); }
.nav-toggle__bar::before { top: -7px; }
.nav-toggle__bar::after  { top:  7px; }

@media (max-width: 1023px) {
  .nav-toggle { display: inline-block; }
  .global-nav__list,
  .global-nav__cta {
    position: fixed;
    top: 72px; left: 0; right: 0; bottom: 0;
    background: var(--color-bg);
    flex-direction: column;
    padding: var(--space-6) var(--space-5);
    transform: translateX(100%);
    transition: transform var(--dur-base) var(--ease-out);
    align-items: flex-start;
    gap: var(--space-5);
  }
  .global-nav__cta { top: auto; bottom: 0; padding: var(--space-5); }
  .global-nav.is-open .global-nav__list,
  .global-nav.is-open .global-nav__cta { transform: translateX(0); }
  .global-nav__link { font-size: 1.125rem; }
}

/* ---- Buttons ----------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-size: 0.9375rem;
  font-weight: var(--fw-semi);
  letter-spacing: var(--ls-button);
  text-decoration: none;
  cursor: pointer;
  transition:
    background var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}
.btn--primary {
  background: var(--color-accent);
  color: #fff;
}
.btn--primary:hover { background: var(--color-accent-hover); color: #fff; }

.btn--outline {
  background: transparent;
  border-color: var(--color-border-strong);
  color: var(--color-text);
}
.btn--outline:hover { border-color: var(--color-accent); color: var(--color-accent); }

.btn--ghost-light {
  background: transparent;
  border-color: rgba(255,255,255,0.35);
  color: #fff;
}
.btn--ghost-light:hover { background: rgba(255,255,255,0.08); }

.btn__arrow { transition: transform var(--dur-fast) var(--ease-out); }
.btn:hover .btn__arrow { transform: translateX(2px); }

@media (max-width: 767px) {
  .btn { padding: 10px 20px; font-size: 0.875rem; }
}

/* ---- Hero -------------------------------------------------------------- */
.hero {
  padding-block: var(--space-9) var(--space-9);
  position: relative;
  overflow: hidden;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-8);
  align-items: center;
}
.hero__eyebrow {
  font-family: var(--font-en);
  font-size: var(--fs-caption);
  font-weight: var(--fw-semi);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}
.hero__title {
  font-size: var(--fs-hero);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-heading);
  font-weight: var(--fw-bold);
  margin-bottom: var(--space-5);
}
.hero__title span { color: var(--color-accent); }
.hero__lead {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 560px;
  margin-bottom: var(--space-6);
}
.hero__cta { display: flex; gap: var(--space-3); flex-wrap: wrap; }

.hero__visual {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 80% at 10% 0%, rgba(229,57,53,0.10) 0%, transparent 60%),
    linear-gradient(180deg, #F2F4F8 0%, #E5E7EB 100%);
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  overflow: hidden;
}
.hero__visual-label {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  font-family: var(--font-en);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  color: var(--color-text-muted);
  text-transform: uppercase;
}
.hero__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg, rgba(0,0,0,0.03) 0 1px, transparent 1px 80px),
    repeating-linear-gradient(90deg, rgba(0,0,0,0.03) 0 1px, transparent 1px 80px);
  pointer-events: none;
}

@media (max-width: 767px) {
  .hero { padding-block: var(--space-7); }
  .hero__grid { grid-template-columns: 1fr; gap: var(--space-6); }
  .hero__visual { aspect-ratio: 4 / 3; }
}

/* ---- Card -------------------------------------------------------------- */
.card-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: repeat(3, 1fr);
}
@media (max-width: 1023px) { .card-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 767px)  { .card-grid { grid-template-columns: 1fr; } }

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  transition:
    border-color var(--dur-base) var(--ease-out),
    transform    var(--dur-base) var(--ease-out),
    box-shadow   var(--dur-base) var(--ease-out);
}
.card:hover { border-color: var(--color-accent); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.card__icon {
  font-family: var(--font-en);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--color-accent);
  font-weight: var(--fw-bold);
}
.card__title { font-size: var(--fs-h3); font-weight: var(--fw-semi); }
.card__desc { color: var(--color-text-muted); }
.card__link {
  display: inline-flex; align-items: center; gap: 4px;
  margin-top: auto;
  font-size: 0.875rem;
  font-weight: var(--fw-semi);
  text-decoration: none;
  color: var(--color-text);
  padding-top: var(--space-3);
}
.card__link:hover { color: var(--color-accent); }

/* ---- News list --------------------------------------------------------- */
.news-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--color-border);
}
.news-item {
  display: grid;
  grid-template-columns: 110px 100px 1fr auto;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-border);
  text-decoration: none;
  color: var(--color-text);
  transition: background var(--dur-fast) var(--ease-out);
}
.news-item:hover { background: var(--color-bg-alt); }
.news-item__date {
  font-family: var(--font-en);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}
.news-item__tag {
  display: inline-block;
  padding: 2px 10px;
  font-size: 0.6875rem;
  font-weight: var(--fw-semi);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-xs);
  background: var(--color-accent-soft);
  color: var(--color-accent);
  text-align: center;
}
.news-item__tag--press   { background: #EDF2FF; color: #2952CC; }
.news-item__tag--media   { background: #F1F5F9; color: #475569; }
.news-item__tag--ir,
.news-item__tag--release { background: var(--color-accent-soft); color: var(--color-accent); }
.news-item__title { font-size: 0.9375rem; font-weight: var(--fw-medium); }
.news-item__link  {
  font-family: var(--font-en);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
}

@media (max-width: 767px) {
  .news-item {
    grid-template-columns: 1fr;
    gap: var(--space-1);
    padding: var(--space-3) 0;
  }
  .news-item__link { display: none; }
}

/* ---- Stats ------------------------------------------------------------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}
@media (max-width: 767px) { .stats { grid-template-columns: repeat(2, 1fr); } }
.stat {
  padding: var(--space-5) 0;
  border-top: 1px solid rgba(255,255,255,0.16);
}
.stat__num {
  font-family: var(--font-en);
  font-size: var(--fs-stat);
  font-weight: var(--fw-bold);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.stat__num small { font-size: 0.5em; color: var(--color-accent-on-dark); margin-left: 2px; }
.stat__label {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.04em;
  margin-top: var(--space-2);
}

/* ---- CTA Band ---------------------------------------------------------- */
.cta-band {
  background: var(--color-bg-dark);
  color: var(--color-text-on-dark);
  padding-block: var(--space-9);
  text-align: center;
  background-image: radial-gradient(60% 50% at 50% 0%, rgba(229,57,53,0.18) 0%, transparent 70%);
}
.cta-band__title {
  font-size: var(--fs-h2);
  margin-bottom: var(--space-3);
}
.cta-band__lead {
  color: rgba(255,255,255,0.75);
  margin-bottom: var(--space-6);
}
.cta-band__actions {
  display: inline-flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  justify-content: center;
}

/* ---- Footer ------------------------------------------------------------ */
.site-footer {
  background: var(--color-bg-dark);
  color: var(--color-text-on-dark);
  padding-block: var(--space-8) var(--space-5);
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-6);
  padding-bottom: var(--space-7);
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.site-footer__brand { display: flex; flex-direction: column; gap: var(--space-3); }
.site-footer .site-logo { color: var(--color-text-on-dark); }
.site-footer__legal-name {
  font-family: var(--font-en);
  font-size: 0.9375rem;
  font-weight: var(--fw-semi);
  letter-spacing: 0.02em;
  color: rgba(255,255,255,0.92);
}
.site-footer__tagline {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.65);
  max-width: 320px;
}
.footer-col__title {
  font-family: var(--font-en);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  margin-bottom: var(--space-3);
  font-weight: var(--fw-semi);
}
.footer-col__list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: var(--space-2); }
.footer-col__list a {
  color: var(--color-text-on-dark);
  text-decoration: none;
  font-size: 0.875rem;
}
.footer-col__list a:hover { color: var(--color-accent-on-dark); }

.site-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-5);
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
  flex-wrap: wrap;
  gap: var(--space-3);
}
.site-footer__bottom-nav { display: flex; gap: var(--space-5); }
.site-footer__bottom-nav a { color: rgba(255,255,255,0.65); text-decoration: none; font-size: 0.75rem; }
.site-footer__bottom-nav a:hover { color: var(--color-accent-on-dark); }

@media (max-width: 767px) {
  .site-footer__grid { grid-template-columns: 1fr; gap: var(--space-5); }
  .site-footer__bottom { flex-direction: column; align-items: flex-start; }
}

/* ---- Mission block ----------------------------------------------------- */
.mission {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-8);
  align-items: center;
}
.mission__title {
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-heading);
}
.mission__title span { color: var(--color-accent); }
.mission__text {
  color: var(--color-text-muted);
}
.mt-md { margin-top: var(--space-4); }

@media (max-width: 767px) { .mission { grid-template-columns: 1fr; gap: var(--space-5); } }