/* ============================================================
   footer.css — Site Footer
   B.I.Y Corporate Design System
   ============================================================ */

.site-footer {
  background-color: var(--color-navy-deep);
  color: rgba(255, 255, 255, 0.7);
  position: relative;
  padding-top: 100px;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 1px;
  background: var(--color-gold);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 80px;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding) 80px;
}

/* ── Brand block ───────────────────────────────────────── */
.site-footer__logo {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  color: var(--color-white);
  margin-bottom: 32px;
  transition: opacity var(--transition-fast);
}

.site-footer__logo:hover { opacity: 0.85; }

.site-footer__logo-img {
  display: block;
  height: 44px;
  width: auto;
  filter: brightness(0) invert(1); /* dark PNG → white */
}

.site-footer__logo-tag {
  font-family: var(--font-serif-en);
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-top: 10px;
}

.site-footer__catch {
  font-family: var(--font-serif-ja);
  font-size: var(--fs-h4);
  color: var(--color-white);
  letter-spacing: 0.08em;
  line-height: 1.6;
}

.site-footer__sub {
  font-family: var(--font-sans-ja);
  font-size: var(--fs-sm);
  color: var(--color-gold);
  margin-top: 8px;
  letter-spacing: 0.12em;
  margin-bottom: 36px;
}

.site-footer__info {
  display: flex;
  flex-direction: column;
  gap: 16px;
  font-size: var(--fs-xs);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
}

.site-footer__info-row {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 16px;
  align-items: start;
}

.site-footer__info-row dt {
  font-family: var(--font-serif-en);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  padding-top: 2px;
}

.site-footer__info-row a {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

.site-footer__info-row a:hover {
  color: var(--color-gold);
}

/* ── Heading ───────────────────────────────────────────── */
.site-footer__heading {
  font-family: var(--font-serif-en);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 32px;
  position: relative;
  padding-bottom: 16px;
}

.site-footer__heading::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 1px;
  background: rgba(200, 168, 74, 0.4);
}

/* ── Sitemap nav ───────────────────────────────────────── */
.site-footer__nav {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.site-footer__nav a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  font-family: var(--font-serif-en);
  font-size: var(--fs-sm);
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.site-footer__nav a:hover {
  color: var(--color-gold);
  padding-left: 4px;
}

.site-footer__nav a small {
  font-family: var(--font-sans-ja);
  font-size: 10px;
  font-weight: var(--fw-regular);
  letter-spacing: var(--tracking-wider);
  color: rgba(255, 255, 255, 0.4);
}

.site-footer__nav-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.site-footer__subnav {
  list-style: none;
  padding-left: 16px;
  border-left: 1px solid rgba(200, 168, 74, 0.2);
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 4px 0 8px;
}

.site-footer__subnav a {
  display: inline-block;
  font-family: var(--font-sans-ja);
  font-size: var(--fs-xs);
  letter-spacing: var(--tracking-wide);
  color: rgba(255, 255, 255, 0.55);
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.site-footer__subnav a:hover {
  color: var(--color-gold);
  padding-left: 4px;
}

/* ── Contact col ───────────────────────────────────────── */
.site-footer__contact-lead {
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: var(--tracking-wide);
  margin-bottom: 14px;
}

.site-footer__contact-tel {
  display: block;
  font-family: var(--font-serif-en);
  font-size: 30px;
  color: var(--color-white);
  letter-spacing: 0.04em;
  font-weight: var(--fw-medium);
  margin-bottom: 6px;
  transition: color var(--transition-fast);
}

.site-footer__contact-tel:hover { color: var(--color-gold); }

.site-footer__contact-hours {
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: var(--tracking-wide);
  margin-bottom: 32px;
}

.site-footer__contact-btn {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 22px;
  border: 1px solid var(--color-gold);
  color: var(--color-gold);
  font-size: var(--fs-sm);
  letter-spacing: var(--tracking-wider);
  width: 100%;
  max-width: 280px;
  transition: background-color var(--transition-base), color var(--transition-base);
}

.site-footer__contact-btn:hover {
  background: var(--color-gold);
  color: var(--color-white);
}

.site-footer__contact-arrow {
  font-family: var(--font-sans-en);
  transition: transform var(--transition-base);
}

.site-footer__contact-btn:hover .site-footer__contact-arrow { transform: translateX(4px); }

.site-footer__line {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--fs-xs);
  letter-spacing: var(--tracking-wide);
  transition: color var(--transition-fast);
}

.site-footer__line-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  color: var(--color-gold);
  font-family: var(--font-serif-en);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.site-footer__line:hover { color: var(--color-gold); }
.site-footer__line:hover .site-footer__line-icon {
  background: var(--color-gold);
  color: var(--color-white);
}

/* ── Bottom strip ─────────────────────────────────────── */
.site-footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.site-footer__bottom-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 24px var(--container-padding);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.site-footer__copyright {
  font-family: var(--font-serif-en);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255, 0.4);
}

.site-footer__legal {
  display: flex;
  gap: 32px;
  list-style: none;
}

.site-footer__legal a {
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: var(--tracking-wide);
  transition: color var(--transition-fast);
}

.site-footer__legal a:hover { color: var(--color-gold); }