/* Anchor offset under sticky header — scroll_margin_anchor_skill */
#lead-form,
#about-metrics,
#audience,
#services,
#advantages,
#blog {
  scroll-margin-top: calc(var(--header-h) + env(safe-area-inset-top, 0px));
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(239, 242, 245, 0.92);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(140, 156, 163, 0.85);
  transition: box-shadow 0.25s var(--ease), background-color 0.25s var(--ease);
}

.site-header.is-scrolled {
  background: rgba(239, 242, 245, 0.96);
  box-shadow: 0 8px 28px rgba(61, 79, 92, 0.08);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 1rem;
  width: min(1120px, 100%);
  max-width: 100%;
  padding-inline: max(1rem, env(safe-area-inset-left, 0px))
    max(1rem, env(safe-area-inset-right, 0px));
  box-sizing: border-box;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: inherit;
  min-width: 0;
}

.site-logo:hover {
  color: inherit;
}

.site-logo__mark {
  display: block;
  width: auto;
  height: 2.55rem;
  max-width: 3.25rem;
  object-fit: contain;
  flex-shrink: 0;
}

.site-logo__text {
  display: flex;
  flex-direction: column;
  gap: 0.08rem;
  min-width: 0;
  line-height: 1.15;
}

.site-logo__name {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.2vw, 1.5rem);
  font-weight: 700;
  color: #2d3238;
  letter-spacing: -0.01em;
}

.site-logo__title {
  font-family: var(--font-body);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #8e9196;
  font-weight: 600;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 1.15rem;
}

.site-nav > a {
  text-decoration: none;
  color: var(--ink);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.35rem 0;
  position: relative;
}

.site-nav > a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--color-brand-blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease);
}

.site-nav > a:hover::after,
.site-nav > a:focus-visible::after,
.site-nav > a[aria-current="page"]::after {
  transform: scaleX(1);
}

.site-nav__actions {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-left: 0.35rem;
}

.site-nav__phone {
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.45rem;
  border: 1px solid rgba(140, 156, 163, 0.95);
  background: var(--color-white);
  padding: 0.45rem 0.75rem;
  border-radius: 0.55rem;
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.875rem;
}

.nav-toggle__bars {
  width: 1.05rem;
  height: 0.75rem;
  position: relative;
  display: inline-block;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
}

.nav-toggle__bars::before {
  top: 0;
  box-shadow: 0 5px 0 currentColor;
}

.nav-toggle__bars::after {
  bottom: 0;
}

/* Tablet */
@media (max-width: 991.98px) {
  .site-logo__mark {
    height: 2.35rem;
  }

  .site-logo__name {
    font-size: 1.2rem;
  }

  .site-logo__title {
    font-size: 0.62rem;
    letter-spacing: 0.12em;
  }
}

/* Mobile — mark + назва + підпис */
@media (max-width: 767.98px) {
  .site-logo {
    gap: 0.5rem;
    flex: 1 1 auto;
    min-width: 0;
    max-width: calc(100% - 5.75rem);
  }

  .site-logo__mark {
    height: 2.2rem;
    max-width: 2.85rem;
  }

  .site-logo__text {
    display: flex;
    min-width: 0;
  }

  .site-logo__name {
    font-size: 1.05rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .site-logo__title {
    font-size: 0.55rem;
    letter-spacing: 0.1em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}