.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--sd-white);
  border-bottom: 1px solid var(--border);
}

.nav {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
}

.logo,
.footer-logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  line-height: 0;
}

.logo img,
.footer-logo img {
  display: block;
  height: auto;
  object-fit: contain;
}

.logo img { width: clamp(205px, 18vw, 236px); }
.footer-logo img { width: min(100%, 260px); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 3px;
  margin-left: auto;
  color: var(--sd-navy);
}

.nav-links a,
.mobile-menu a {
  position: relative;
  color: var(--sd-navy);
  font-size: .9rem;
  font-weight: 600;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-links a { padding: 13px 10px; }

.nav-links a::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 7px;
  height: 2px;
  background: transparent;
}

.nav-links a:hover { color: var(--sd-dark-teal); }
.nav-links a.is-active { color: var(--sd-navy); }
.nav-links a.is-active::after { background: var(--sd-teal); }

.mobile-menu a { padding: 13px 4px; border-bottom: 1px solid var(--border); }
.mobile-menu a.is-active { color: var(--sd-dark-teal); }

.mobile-toggle { display: none; }

.btn {
  min-height: var(--button-height);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: .92rem;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--sd-navy); color: var(--sd-white); border-color: var(--sd-navy); }
.btn-primary:hover { background: var(--sd-dark-teal); border-color: var(--sd-dark-teal); }

.btn-secondary { background: transparent; color: var(--sd-navy); border-color: rgba(22,35,63,.34); }
.btn-secondary:hover { border-color: var(--sd-dark-teal); color: var(--sd-dark-teal); }

.hero { padding-block: clamp(72px, 9vw, 124px); }

.eyebrow,
.section-kicker {
  color: var(--sd-dark-teal);
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: .105em;
  line-height: 1.45;
  text-transform: uppercase;
}

.card {
  background: var(--sd-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--card-pad);
  box-shadow: var(--shadow-sm);
}

.product-card,
.capability-card,
.article-card {
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.product-card:hover,
.capability-card:hover,
.article-card:hover {
  transform: translateY(-3px);
  border-color: rgba(11,122,130,.42);
  box-shadow: var(--shadow-md);
}

.tags { display: flex; gap: 8px; flex-wrap: wrap; }

.tag {
  color: var(--sd-navy);
  background: var(--sd-gray);
  border: 1px solid rgba(22,35,63,.10);
  border-radius: var(--radius-sm);
  padding: 7px 10px;
  font-size: .82rem;
  font-weight: 600;
}

.form { display: grid; gap: 20px; }
.field { display: grid; gap: 8px; }
.field label, .form > label { color: var(--sd-navy); font-size: .9rem; font-weight: 650; }

input, select, textarea {
  width: 100%;
  color: var(--sd-navy);
  background: var(--sd-white);
  border: 1px solid rgba(22,35,63,.26);
  border-radius: var(--radius-sm);
  min-height: 52px;
  padding: 12px 14px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input:hover, select:hover, textarea:hover { border-color: rgba(22,35,63,.42); }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--sd-dark-teal); box-shadow: 0 0 0 3px rgba(0,194,203,.16); }
textarea { min-height: 160px; resize: vertical; }

.site-footer {
  border-top: 1px solid var(--border);
  padding-block: 68px 34px;
  background: var(--sd-gray);
  color: var(--sd-navy);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(260px, 2fr) repeat(4, minmax(120px, 1fr));
  gap: clamp(24px, 3vw, 42px);
  align-items: start;
}

.footer-grid > div:first-child p { max-width: 360px; margin-top: 20px; }
.footer-grid strong { font-family: var(--font-display); font-size: .92rem; }
.footer-links { list-style: none; padding: 0; margin: 14px 0 0; display: grid; gap: 9px; }
.footer-links a { color: rgba(22,35,63,.72); font-size: .9rem; transition: color var(--transition-fast); }
.footer-links a:hover, .footer-links a:focus-visible { color: var(--sd-dark-teal); }

.product-card__title-link { color: var(--sd-navy); display: inline-flex; align-items: center; gap: 8px; }
.product-card__title-link:hover { color: var(--sd-dark-teal); }
.product-card__title-link::after { content: "↗"; color: var(--sd-teal); font-size: .72em; transform: translateY(-1px); }

.mobile-menu { display: none; }

@media (max-width: 1080px) {
  .nav-links a { padding-inline: 7px; font-size: .85rem; }
  .nav > .btn { padding-inline: 16px; }
  .footer-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .nav { min-height: 74px; }
  .logo img { width: 205px; }
  .nav-links, .nav > .btn { display: none; }
  .mobile-toggle {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    padding: 0 14px;
    background: var(--sd-white);
    color: var(--sd-navy);
    border: 1px solid rgba(22,35,63,.26);
    border-radius: var(--radius-sm);
    font-weight: 700;
  }
  .mobile-menu {
    padding: 8px 0 20px;
    border-top: 1px solid var(--border);
    background: var(--sd-white);
  }
  .mobile-menu.is-open { display: grid; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .logo img { width: 182px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child, .footer-grid > div:last-child { grid-column: 1 / -1; }
  .footer-logo img { width: 226px; }
}

@media (min-width: 901px) {
  .mobile-menu, .mobile-menu.is-open { display: none !important; }
}

/* Footer legal row */
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:40px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);font-size:.85rem;opacity:.75}
/* Product status tags */
.status-tag{display:inline-block;margin:8px 0 4px}
.status-tag--live{color:#0f7a5c;border-color:rgba(15,122,92,.4);background:rgba(15,122,92,.08)}
/* Contact form status */
.form-status{padding:12px 16px;border-radius:10px;background:rgba(141,232,201,.12);color:inherit}