@keyframes headerFadeDown {
  from { opacity: 0; transform: translateY(-16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  animation: headerFadeDown 0.5s cubic-bezier(0.22, 0.84, 0.18, 1) 0.05s both;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(255, 255, 255, 0.78);
  border-bottom: 1px solid rgba(20, 20, 20, 0.06);
  transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  border-bottom-color: rgba(20, 20, 20, 0.08);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.05);
}
.header__inner {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  line-height: 1;
}
.brand img {
  height: auto;
  filter: saturate(0.95) contrast(1.02);
}
.header__nav {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-left: auto;
  position: relative;
}
.header__nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 0.15rem;
}
.header__nav-list a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.45rem;
  padding: 0 0.85rem;
  border-radius: 10px;
  color: #1b1f26;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.86rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
}
.header__nav-list a:hover,
.header__nav-list a:focus-visible {
  background: rgba(7, 102, 244, 0.08);
  outline: none;
}
.header__nav-list a.is-active {
  background: #003386;
  color: #fff;
}
.header__product-link.button--ghost,
.header__product-link.button--ghost:link,
.header__product-link.button--ghost:visited {
  white-space: nowrap;
  background: #141414;
  color: #fff;
  border-color: #141414;
  box-shadow: none;
}
.header__product-link.button--ghost:hover,
.header__product-link.button--ghost:focus-visible {
  background: #222;
  color: #fff;
  border-color: #222;
  box-shadow: none;
}

.header__menu-button {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.95);
}
.header__menu-button:focus-visible {
  outline: 2px solid rgba(15, 123, 120, 0.26);
  outline-offset: 2px;
}
.header__menu-icon {
  position: relative;
  width: 1.2rem;
  height: 2px;
  border-radius: 999px;
  background: var(--ink);
  display: block;
}
.header__menu-icon::before,
.header__menu-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 1.2rem;
  height: 2px;
  border-radius: 999px;
  background: var(--ink);
  transition: transform 0.2s ease;
}
.header__menu-icon::before { transform: translateY(-6px); }
.header__menu-icon::after { transform: translateY(6px); }
[data-nav].is-open .header__menu-icon { background: transparent; }
[data-nav].is-open .header__menu-icon::before { transform: rotate(45deg); }
[data-nav].is-open .header__menu-icon::after { transform: rotate(-45deg); }

.header__mobile-panel {
  position: absolute;
  right: 0;
  top: calc(100% + 0.6rem);
  width: min(22rem, calc(100vw - 1rem));
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid var(--line);
  border-radius: 20px;
  border-color: rgba(20, 20, 20, 0.08);
  box-shadow: 0 22px 48px rgba(0, 0, 0, 0.10);
  padding: 0.9rem;
  display: grid;
  gap: 0.8rem;
  backdrop-filter: blur(10px);
}
.header__nav-list--mobile {
  display: grid;
  gap: 0.25rem;
}
.header__nav-list--mobile a {
  justify-content: flex-start;
  padding-inline: 0.8rem;
}

.site-footer {
  padding-top: clamp(2rem, 6vw, 3.5rem);
  border-top: 1px solid var(--line);
  background:
    radial-gradient(800px 400px at 10% 0%, rgba(15, 76, 129, 0.10), transparent 70%),
    radial-gradient(900px 500px at 100% 10%, rgba(15, 123, 120, 0.09), transparent 70%),
    rgba(255, 255, 255, 0.34);
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 1.25rem;
  align-items: start;
  padding-bottom: 1.25rem;
}
.site-footer__brand,
.site-footer__nav {
  background: rgba(255, 255, 255, 0.66);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 1rem 1rem 1.05rem;
  box-shadow: var(--shadow-sm);
}
.site-footer__lead {
  margin-top: 0.9rem;
  font-size: 0.95rem;
}
.site-footer__address {
  margin-top: 1rem;
  display: grid;
  gap: 0.35rem;
  color: var(--ink-2);
  font-style: normal;
  font-size: 0.92rem;
  line-height: 1.6;
}
.site-footer__nav h2 {
  font-size: 0.9rem;
  margin-bottom: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.site-footer__nav ul {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0.45rem;
}
.site-footer__nav a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
}
.site-footer__nav a[href*="x.com/yozboshi_inc"],
.site-footer__nav a[href*="facebook.com/yozboshi"],
.site-footer__nav a[href*="linkedin.com/company"] {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}
.site-footer__nav a[href*="x.com/yozboshi_inc"]::before,
.site-footer__nav a[href*="facebook.com/yozboshi"]::before,
.site-footer__nav a[href*="linkedin.com/company"]::before {
  content: "";
  display: block;
  width: 1rem;
  height: 1rem;
  flex: 0 0 1rem;
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
  opacity: 1;
}
.site-footer__nav a[href*="x.com/yozboshi_inc"]::before {
  background-image: url("../img/icons/social-x.svg");
}
.site-footer__nav a[href*="facebook.com/yozboshi"]::before {
  background-image: url("../img/icons/social-facebook.svg");
}
.site-footer__nav a[href*="linkedin.com/company"]::before {
  background-image: url("../img/icons/social-linkedin.svg");
}
.site-footer__nav a:hover {
  color: var(--brand-2);
  text-decoration: underline;
}
.site-footer__bottom {
  padding-block: 1rem 1.6rem;
  border-top: 1px solid var(--line);
  color: var(--ink-3);
  font-size: 0.88rem;
}

.page-intro {
  position: relative;
  padding-top: clamp(4rem, 10vw, 6.5rem);
  padding-bottom: clamp(2rem, 5vw, 3.3rem);
  overflow: clip;
}
.page-intro--compact {
  padding-top: clamp(3.2rem, 8vw, 5rem);
  padding-bottom: clamp(1.2rem, 4vw, 2rem);
}
.page-intro__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(15, 123, 120, 0.24), transparent 65%),
    radial-gradient(700px 420px at 0% 20%, rgba(242, 163, 59, 0.18), transparent 70%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.7), transparent);
  pointer-events: none;
}
.page-intro__inner {
  position: relative;
  z-index: 1;
}
.page-intro__copy {
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1.2rem, 3vw, 2rem);
  box-shadow: var(--shadow-sm);
}
.page-intro__copy p:not(.eyebrow) {
  max-width: 64ch;
  margin-top: 0.8rem;
}

.hero {
  position: relative;
  padding-top: clamp(2.5rem, 8vw, 5rem);
  padding-bottom: clamp(2.5rem, 8vw, 5.5rem);
  overflow: clip;
}
.hero--home {
  background:
    radial-gradient(1200px 700px at 92% 0%, rgba(242, 163, 59, 0.14), transparent 62%),
    radial-gradient(1000px 640px at 20% 0%, rgba(15, 123, 120, 0.15), transparent 66%),
    linear-gradient(180deg, rgba(255,255,255,0.45), transparent);
}
.hero__bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(115deg, rgba(8, 40, 59, 0.08), rgba(15, 123, 120, 0.02)),
    linear-gradient(rgba(15, 76, 129, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 76, 129, 0.04) 1px, transparent 1px);
  background-size: auto, 24px 24px, 24px 24px;
  mask-image: linear-gradient(180deg, black, rgba(0,0,0,0.6));
  pointer-events: none;
}
.hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(1.2rem, 3vw, 2rem);
  align-items: stretch;
}
.hero__copy {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(13, 53, 80, 0.08);
  border-radius: var(--radius-xl);
  padding: clamp(1.2rem, 3vw, 2rem);
  box-shadow: var(--shadow-md);
}
.hero__lead {
  margin-top: 0.9rem;
  font-size: clamp(0.98rem, 1.5vw, 1.12rem);
  max-width: 46ch;
}
.hero__actions {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.hero__visual { display: grid; }

.breadcrumbs { margin-top: 1rem; }
.breadcrumbs ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  color: var(--ink-3);
  font-size: 0.86rem;
}
.breadcrumbs li { display: inline-flex; align-items: center; gap: 0.5rem; }
.breadcrumbs li + li::before {
  content: "/";
  color: rgba(15, 76, 129, 0.35);
  margin-right: 0.1rem;
}
.breadcrumbs a { color: var(--ink-2); text-decoration: none; }
.breadcrumbs a:hover { color: var(--brand-2); text-decoration: underline; }

@media (max-width: 980px) {
  .header__menu-button { display: inline-flex; }
  .header__nav-list--desktop,
  .header__product-link { display: none; }
  .site-footer__grid { grid-template-columns: 1fr; }
  .hero__grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .header__inner { gap: 0.5rem; }
  .header__mobile-panel { width: min(24rem, calc(100vw - 0.75rem)); }
}