.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  isolation: isolate;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

@media (max-width: 720px) {
  .site-header {
    background: rgba(255, 255, 255, 0.94);
  }
}

.site-header--scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: 0 8px 24px rgba(16, 24, 40, 0.06);
}

.site-header__inner {
  width: 100%;
  padding: 12px 32px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  margin-right: 12px;
}

.site-logo:hover {
  text-decoration: none;
}

.site-logo__img {
  height: 34px;
  width: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  flex: 1;
}

.site-nav__item {
  position: relative;
}

.site-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 13px;
  color: var(--color-text);
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: background 0.15s ease, color 0.15s ease;
}

.site-nav__chevron {
  color: var(--color-text-muted);
  transition: transform 0.2s ease;
}

.site-nav__link:hover,
.site-nav__link--active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  text-decoration: none;
}

.site-nav__link--active .site-nav__chevron {
  transform: rotate(180deg);
  color: var(--color-primary);
}

/* Simple dropdown (for categories with few tools) */
.simple-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  pointer-events: none;
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.16s ease, transform 0.16s ease;
  margin-top: 8px;
  padding: 8px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: 0 20px 40px -14px rgba(16, 24, 40, 0.2);
  z-index: 60;
}

.simple-dropdown--open {
  pointer-events: auto;
  opacity: 1;
  transform: translateY(0);
}

.simple-dropdown__link {
  display: block;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text);
}

.simple-dropdown__link:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
  text-decoration: none;
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* Search — icon button + dropdown panel with a live-filtered tool list */
.site-search {
  position: relative;
}

.site-search__panel {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 8px;
  width: 320px;
  max-width: calc(100vw - 32px);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: 0 20px 40px -14px rgba(16, 24, 40, 0.2);
  z-index: 70;
  overflow: hidden;
}

.site-search__form {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--color-border);
}

.site-search__form-icon {
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.site-search__input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 0.86rem;
  color: var(--color-text);
  background: transparent;
}

.site-search__results {
  max-height: 320px;
  overflow-y: auto;
  padding: 6px;
}

.site-search__result {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
}

.site-search__result:hover {
  background: var(--color-primary-light);
  text-decoration: none;
}

.site-search__result-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text);
}

.site-search__result-category {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.site-search__empty {
  padding: 14px 10px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-align: center;
}

@media (max-width: 720px) {
  .site-search__panel {
    position: fixed;
    top: 60px;
    left: 16px;
    right: 16px;
    width: auto;
  }
}

.site-header__icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-text);
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.site-header__icon-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.site-header__icon-btn--mobile {
  display: none;
}

.site-header__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, var(--color-primary), #4a5fd6);
  color: #fff;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 700;
  box-shadow: 0 6px 16px rgba(41, 58, 139, 0.28);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.site-header__cta:hover {
  color: #fff;
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(41, 58, 139, 0.36);
}

/* Mega menu */
.mega-menu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  pointer-events: none;
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.16s ease, transform 0.16s ease;
}

.mega-menu--open {
  pointer-events: auto;
  opacity: 1;
  transform: translateY(0);
}

.mega-menu__inner {
  max-width: var(--max-width);
  margin: 10px auto 0;
  padding: 26px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 48px -12px rgba(16, 24, 40, 0.18);
}

/* Use this modifier on .mega-menu__inner if the promo panel is reinstated later. */
.mega-menu__inner--with-promo {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 28px;
}

.mega-menu__columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 20px 24px;
}

.mega-menu__col {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.mega-menu__col-title {
  display: block;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  padding: 6px 10px 10px;
}

.mega-menu__link {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text);
}

.mega-menu__link-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-border);
  flex-shrink: 0;
  transition: background 0.15s ease;
}

.mega-menu__link:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
  text-decoration: none;
}

.mega-menu__link:hover .mega-menu__link-dot {
  background: var(--color-primary);
}

.mega-menu__promo {
  position: relative;
  overflow: hidden;
  background: linear-gradient(155deg, var(--color-primary), var(--color-primary-dark) 85%);
  border-radius: var(--radius-md);
  padding: 24px;
  color: #fff;
  display: flex;
  flex-direction: column;
}

.mega-menu__promo::before {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  right: -60px;
  top: -60px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
}

.mega-menu__promo-eyebrow {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 10px;
}

.mega-menu__promo h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.mega-menu__promo p {
  font-size: 0.84rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.85);
  flex: 1;
  margin-bottom: 16px;
}

.mega-menu__promo-cta {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 9px 15px;
  border-radius: var(--radius-sm);
  align-self: flex-start;
  transition: background 0.15s ease;
}

.mega-menu__promo-cta:hover {
  background: #fff;
  color: var(--color-primary-dark);
  text-decoration: none;
}

/* Mobile nav */
.mobile-nav {
  display: none;
}

@media (max-width: 960px) {
  .site-nav,
  .site-header__cta,
  .site-header__icon-btn:not(.site-header__icon-btn--mobile) {
    display: none;
  }

  .site-header__icon-btn--mobile {
    display: inline-flex;
  }

  .mobile-nav {
    display: flex;
    flex-direction: column;
    padding: 8px 20px 20px;
    border-top: 1px solid var(--color-border);
    background: #fff;
  }

  .mobile-nav__link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 4px;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border);
  }

  .mobile-nav__link:hover {
    color: var(--color-primary);
    text-decoration: none;
  }

  .mobile-nav__cta {
    margin-top: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: var(--color-primary);
    color: #fff;
    padding: 12px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 0.88rem;
  }
}

@media (max-width: 640px) {
  .mega-menu__inner {
    grid-template-columns: 1fr;
  }
}

/* Footer */
.site-footer {
  position: relative;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.site-footer__top {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 32px 32px;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 48px;
  border-bottom: 1px solid var(--color-border);
}

.site-footer__brand-col {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.site-footer__logo-link {
  display: inline-flex;
}

.site-footer__logo-link:hover {
  text-decoration: none;
}

.site-footer__logo-img {
  height: 34px;
  width: auto;
}

.site-footer__desc {
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  margin: 0;
  max-width: 220px;
}

.site-footer__social {
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-footer__social-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text-muted);
  transition: border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.site-footer__social-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
  text-decoration: none;
}

.site-footer__cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.site-footer__col {
  min-width: 0;
}

.site-footer__col-title {
  display: block;
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 14px;
}

.site-footer__col-title:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.site-footer__col-links {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin-bottom: 12px;
}

.site-footer__col-link {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.site-footer__col-link:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.site-footer__col-more {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--color-primary);
}

.site-footer__col-more:hover {
  text-decoration: none;
  gap: 8px;
}

@media (max-width: 980px) {
  .site-footer__top {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .site-footer__desc {
    max-width: none;
  }
}

@media (max-width: 640px) {
  .site-footer__cols {
    grid-template-columns: repeat(2, 1fr);
  }
}

.site-footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 32px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-footer__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-right: auto;
}

.site-footer__logo {
  height: 26px;
  width: auto;
  flex-shrink: 0;
}

.site-footer__copy {
  color: var(--color-text-muted);
  font-size: 0.84rem;
  margin: 0;
  white-space: nowrap;
}

.site-footer__nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.site-footer__nav-link {
  position: relative;
  padding: 6px 10px;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: color 0.15s ease, background 0.15s ease;
}

.site-footer__nav-link:hover {
  color: var(--color-primary);
  background: var(--color-primary-light);
  text-decoration: none;
}

.site-footer__top-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  background: var(--color-bg);
  flex-shrink: 0;
  transition: border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.site-footer__top-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
}

@media (max-width: 720px) {
  .site-footer__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .site-footer__brand {
    margin-right: 0;
  }

  .site-footer__top-btn {
    position: absolute;
    top: 24px;
    right: 24px;
  }

  .site-footer__inner {
    position: relative;
  }
}

@media (max-width: 480px) {
  .site-footer__copy {
    white-space: normal;
  }
}