/* Global shell only: no selectors affect page content or the parent footer. */
.bl-header {
  --bl-admin-offset: 0px;
  --bl-header-live-height: var(--bl-header-height);
  position: sticky;
  top: var(--bl-admin-offset);
  z-index: var(--bl-z-header);
  block-size: var(--bl-header-height);
  font: var(--bl-weight-normal) .875rem/1.5 var(--bl-font-ui);
  color: var(--bl-text-primary);
  isolation: isolate;
}
body.admin-bar .bl-header { --bl-admin-offset: 32px; }
.bl-header *, .bl-header *::before, .bl-header *::after { box-sizing: border-box; }
.bl-header [hidden] { display: none; }
.bl-header a { color: inherit; text-decoration: none; }
.bl-header a:focus-visible, .bl-header button:focus-visible, .bl-header summary:focus-visible {
  outline: var(--bl-focus-width) solid var(--bl-color-brand);
  outline-offset: var(--bl-focus-offset);
  border-radius: var(--bl-radius-sm);
}
.bl-header ul { list-style: none; margin: 0; padding: 0; }
.bl-header p, .bl-header h2 { margin: 0; }
.bl-header__shell {
  position: absolute;
  inset: 0 0 auto;
  background: var(--bl-bg-primary);
  border-block-end: 1px solid var(--bl-border);
  transition: background-color var(--bl-duration-interface) var(--bl-ease-out);
}
.bl-header__bar { display: flex; align-items: center; gap: clamp(1.5rem, 3vw, 3.5rem); min-block-size: var(--bl-header-live-height); }
.bl-header.is-compact { --bl-header-live-height: var(--bl-header-compact-height); }
/* The slot stays 80px: compacting its absolutely-positioned shell does not shift the document. */
.bl-header.is-compact .bl-header__shell { background: var(--bl-bg-deep); }
@supports (backdrop-filter: blur(1px)) {
  .bl-header.is-compact .bl-header__shell {
    background: var(--bl-header-scrolled-bg);
    backdrop-filter: blur(var(--bl-header-blur));
    -webkit-backdrop-filter: blur(var(--bl-header-blur));
  }
}
/* Overlay mode (Phase 03: pages whose Elementor data contain the Backlab Hero). Transparency waits for
   is-enhanced: without JS the mobile header is a tall in-flow list over the light page background. */
.bl-header.is-enhanced[data-mode="overlay"]:not(.is-compact):not(.has-panel):not(.is-mobile-open) .bl-header__shell { background: transparent; border-color: transparent; }
.bl-header__brand { display: flex; align-items: center; flex-shrink: 0; inline-size: var(--bl-header-logo-width); min-block-size: var(--bl-touch-target); }
.bl-header__brand img { display: block; inline-size: 100%; block-size: auto; }
.bl-header__navigation { flex: 1; display: flex; align-items: center; justify-content: space-between; gap: var(--bl-space-6); min-inline-size: 0; }
.bl-header__navigation > nav { margin-inline: auto; }
.bl-header__list { display: flex; align-items: center; gap: clamp(.75rem, 1.75vw, 1.75rem); }
.bl-header__item { display: flex; align-items: center; }
.bl-header__nav-link { display: flex; align-items: center; min-block-size: var(--bl-touch-target); white-space: nowrap; transition: color var(--bl-duration-micro); }
.bl-header__nav-link:hover { color: var(--bl-color-brand-light); }
.bl-header__disclosure > summary { display: flex; align-items: center; justify-content: center; inline-size: 1.875rem; min-block-size: var(--bl-touch-target); cursor: pointer; color: var(--bl-text-secondary); list-style: none; border-radius: var(--bl-radius-sm); }
.bl-header__disclosure > summary::-webkit-details-marker { display: none; }
.bl-header__disclosure > summary::marker { content: ''; }
.bl-header__disclosure[open] > summary { color: var(--bl-color-brand); }
.bl-header__disclosure[open] > summary .bl-header__icon { transform: rotate(180deg); }
.bl-header__icon { flex-shrink: 0; display: inline-block; vertical-align: middle; transition: transform var(--bl-duration-micro) var(--bl-ease-out); }
.bl-header__disclosure > summary .bl-header__icon { inline-size: 14px; block-size: 14px; }
.bl-header__cta { display: inline-flex; align-items: center; justify-content: center; gap: var(--bl-space-4); padding: .75rem 1.125rem; min-block-size: var(--bl-touch-target); background: var(--bl-color-brand); color: var(--bl-bg-deep); font-weight: var(--bl-weight-semibold); border: 1px solid transparent; border-radius: var(--bl-radius-sm); white-space: nowrap; transition: background-color var(--bl-duration-micro), transform var(--bl-duration-micro); }
.bl-header a.bl-header__cta { color: var(--bl-bg-deep); }
@media (hover: hover) and (pointer: fine) {
  .bl-header__cta:hover { background: var(--bl-color-brand-light); transform: translateY(-1px); }
  .bl-header__cta:hover .bl-header__icon { transform: translateX(3px); }
}
.bl-header__panel { position: absolute; inset: 100% 0 auto; background: var(--bl-surface-1); border-block-end: 1px solid var(--bl-border-active); max-block-size: calc(100dvh - var(--bl-admin-offset) - var(--bl-header-live-height)); overflow-y: auto; overscroll-behavior: contain; }
.bl-header__disclosure[open] .bl-header__panel { animation: bl-header-reveal var(--bl-header-reveal) var(--bl-ease-out) both; }
.bl-header__panel-inner { padding-block: var(--bl-header-panel-space); }
.bl-header__solutions { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)) minmax(0, 1.2fr); gap: clamp(1rem, 2vw, 2rem); }
.bl-header__eyebrow { font: var(--bl-weight-medium) .6875rem/1.5 var(--bl-font-ui); letter-spacing: .09em; text-transform: uppercase; color: var(--bl-text-secondary); margin-block-end: var(--bl-space-6); }
.bl-header .bl-header__group > h2 { margin-block-end: var(--bl-space-6); }
.bl-header__children { display: grid; gap: var(--bl-space-2); }
.bl-header__solution { display: flex; justify-content: space-between; align-items: flex-start; gap: var(--bl-space-2); padding: .75rem .5rem; min-block-size: var(--bl-touch-target); border: 1px solid transparent; border-radius: var(--bl-radius-sm); transition: border-color var(--bl-duration-micro), background-color var(--bl-duration-micro); }
.bl-header__solution .bl-header__link-title { font-size: .9375rem; line-height: 1.4; font-weight: var(--bl-weight-medium); display: block; }
.bl-header__solution > .bl-header__icon { inline-size: 16px; block-size: 16px; margin-block-start: 3px; color: var(--bl-text-secondary); }
.bl-header__description { display: block; margin-block-start: var(--bl-space-2); color: var(--bl-text-secondary); font-size: .8125rem; line-height: 1.6; }
.bl-header__solution:hover { border-color: var(--bl-border-active); background: var(--bl-surface-2); }
.bl-header__solution:hover > .bl-header__icon { color: var(--bl-color-brand); transform: translateX(2px); }
.bl-header__children .bl-header__children { padding-inline-start: var(--bl-space-4); }
.bl-header__context { padding: 0 0 0 var(--bl-space-6); border-inline-start: 1px solid var(--bl-border-active); }
.bl-header__context p { font-size: 1.125rem; line-height: 1.5; font-weight: var(--bl-weight-medium); max-inline-size: 19ch; }
.bl-header__context a { display: inline-flex; align-items: center; gap: var(--bl-space-2); min-block-size: var(--bl-touch-target); margin-block-start: var(--bl-space-6); color: var(--bl-color-brand); font-size: .8125rem; }
.bl-header__context a:hover .bl-header__icon { transform: translateX(3px); }
.bl-header__construction { display: grid; grid-template-columns: 1.2fr 1fr; gap: clamp(3rem, 8vw, 8rem); }
.bl-header__construction-intro h2 { max-inline-size: 26ch; font: var(--bl-weight-medium) clamp(1.5rem, 2.4vw, 2rem)/1.3 var(--bl-font-ui); margin-block: var(--bl-space-4) var(--bl-space-6); }
.bl-header__construction-intro h2 span { color: var(--bl-color-brand); }
.bl-header__construction-intro .bl-header__children { max-inline-size: 18rem; }
.bl-header__construction-intro .bl-header__solution { color: var(--bl-color-brand); padding-inline: 0; }
.bl-header__capabilities { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 var(--bl-space-8); align-content: center; }
.bl-header__capabilities li { padding-block: var(--bl-space-3); border-block-end: 1px solid var(--bl-border); color: var(--bl-text-secondary); font-size: .875rem; }
.bl-header__mobile-toggle { display: none; }
@keyframes bl-header-reveal { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: translateY(0); } }
/* Phase 02.1: desktop finish only; mobile layout and interaction contracts stay intact. */
@media (min-width: 1024px) {
  .bl-header { --bl-header-reveal: 260ms; --bl-header-feedback: 220ms; }
  .bl-header.has-panel .bl-header__shell { background: var(--bl-surface-1); border-block-end-color: transparent; }
  .bl-header__nav-link { position: relative; }
  .bl-header__nav-link::after { content: ''; position: absolute; inset: auto 0 .25rem; block-size: 1px; background: var(--bl-color-brand); opacity: 0; transform: scaleX(.65); transform-origin: left; transition: opacity var(--bl-header-feedback), transform var(--bl-header-feedback) var(--bl-ease-out); }
  .bl-header__item:has(> .bl-header__disclosure[open]) > .bl-header__nav-link { color: var(--bl-color-brand-light); }
  .bl-header__item:has(> .bl-header__disclosure[open]) > .bl-header__nav-link::after { opacity: .7; transform: scaleX(1); }
  .bl-header__nav-link[aria-current="page"] { color: var(--bl-color-brand-light); }
  .bl-header__nav-link[aria-current="page"]::after { opacity: .7; transform: scaleX(1); }
  .bl-header__eyebrow { font-size: .625rem; letter-spacing: .1em; }
  .bl-header .bl-header__group > h2 { margin-block-end: var(--bl-space-4); padding-inline: .625rem; }
  .bl-header__children { gap: var(--bl-space-3); }
  .bl-header__solution { padding: .875rem .625rem; transition: background-color var(--bl-header-feedback), border-color var(--bl-header-feedback); }
  .bl-header__solution .bl-header__link-title { font-size: 1rem; letter-spacing: -.01em; }
  .bl-header__solution > .bl-header__icon { margin-block-start: .25rem; transition: transform var(--bl-header-feedback) var(--bl-ease-out), color var(--bl-header-feedback); }
  .bl-header__description { margin-block-start: .5rem; line-height: 1.65; max-inline-size: 25ch; }
  .bl-header__context { padding: .5rem 0 .5rem clamp(1.5rem, 2.5vw, 2.5rem); border-inline-start-color: rgba(61, 191, 176, .24); }
  .bl-header__context p { font-size: 1.0625rem; line-height: 1.6; letter-spacing: -.015em; }
  .bl-header__context a { margin-block-start: var(--bl-space-6); }
  .bl-header__construction-intro h2 { letter-spacing: -.025em; line-height: 1.35; }
  .bl-header .bl-header__capabilities { padding-inline-start: var(--bl-space-8); border-inline-start: 1px solid rgba(61, 191, 176, .18); }
  .bl-header__capabilities li { padding-block: .875rem; }
  .bl-header__cta { transition: background-color var(--bl-header-feedback), box-shadow var(--bl-header-feedback); }
}
@media (min-width: 1024px) and (hover: hover) and (pointer: fine) {
  .bl-header__solution:hover, .bl-header__solution:focus-visible { background: rgba(61, 191, 176, .035); border-color: transparent; border-block-end-color: rgba(61, 191, 176, .2); }
  .bl-header__solution:hover > .bl-header__icon, .bl-header__solution:focus-visible > .bl-header__icon { color: var(--bl-color-brand); transform: translateX(3px); }
  .bl-header__cta:hover { background: var(--bl-color-brand); transform: none; box-shadow: inset 0 0 0 1px rgba(245, 248, 247, .25), 0 3px 12px rgba(61, 191, 176, .1); }
}
@media (min-width: 1024px) and (max-width: 1199px) {
  .bl-header__bar { gap: var(--bl-space-6); }
  .bl-header__list { gap: var(--bl-space-3); }
  .bl-header__cta { padding-inline: var(--bl-space-3); gap: var(--bl-space-2); font-size: .8125rem; }
  .bl-header__solutions { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .bl-header__context { grid-column: span 2; }
  .bl-header__context p { max-inline-size: none; }
}
@media (max-width: 1023px) {
  .bl-header { position: relative; block-size: auto; --bl-header-live-height: var(--bl-header-mobile-height); }
  .bl-header__shell { position: relative; }
  .bl-header__bar { flex-wrap: wrap; justify-content: space-between; gap: 0; }
  .bl-header__brand { inline-size: 9rem; min-block-size: var(--bl-header-mobile-height); }
  .bl-header__navigation { flex-basis: 100%; display: block; padding-block: var(--bl-space-4) var(--bl-space-8); }
  .bl-header__navigation > nav { margin-inline: 0; }
  .bl-header__list { display: block; }
  .bl-header__item { display: block; position: relative; border-block-end: 1px solid var(--bl-border); }
  .bl-header__nav-link { inline-size: calc(100% - var(--bl-touch-target)); min-block-size: 4rem; font-size: 1.25rem; font-weight: var(--bl-weight-medium); }
  .bl-header__disclosure { display: block; }
  .bl-header__disclosure > summary { position: absolute; inset: 0 0 auto auto; inline-size: var(--bl-touch-target); min-block-size: 4rem; }
  .bl-header__disclosure > summary .bl-header__icon { inline-size: 18px; block-size: 18px; }
  .bl-header__panel { grid-column: 1 / -1; position: static; background: transparent; max-block-size: none; overflow: visible; border: 0; }
  .bl-header__panel-inner { inline-size: 100%; padding-block: 0 var(--bl-space-6); }
  .bl-header__solutions { display: block; }
  .bl-header__group { margin-block-end: var(--bl-space-3); }
  .bl-header .bl-header__group > h2 { margin-block-end: var(--bl-space-1); font-size: .625rem; }
  .bl-header__solution { padding: .625rem .25rem; }
  .bl-header__solution .bl-header__link-title { font-size: .9375rem; }
  .bl-header__description { display: none; }
  .bl-header__context { display: none; }
  .bl-header__cta { inline-size: 100%; margin-block-start: var(--bl-space-8); padding-block: 1rem; white-space: normal; }
  .bl-header__construction { display: block; }
  .bl-header__construction-intro > .bl-header__eyebrow, .bl-header__construction-intro h2, .bl-header__capabilities { display: none; }
  .bl-header__construction-intro .bl-header__children { max-inline-size: none; }
  .bl-header.is-enhanced { position: sticky; block-size: var(--bl-header-mobile-height); }
  .bl-header.is-enhanced .bl-header__shell { position: absolute; }
  .bl-header.is-enhanced .bl-header__mobile-toggle { display: inline-flex; align-items: center; justify-content: center; gap: var(--bl-space-3); padding: 0; min-inline-size: var(--bl-touch-target); min-block-size: var(--bl-touch-target); color: var(--bl-text-primary); border: 0; border-radius: var(--bl-radius-sm); background: transparent; font: inherit; cursor: pointer; }
  .bl-header__toggle-text { font-size: .75rem; }
  .bl-header__hamburger { display: flex; flex-direction: column; justify-content: center; gap: 6px; inline-size: 22px; block-size: 22px; }
  .bl-header__hamburger span { display: block; inline-size: 22px; block-size: 1px; background: currentColor; transition: transform var(--bl-duration-micro); }
  .bl-header.is-mobile-open .bl-header__hamburger span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .bl-header.is-mobile-open .bl-header__hamburger span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .bl-header.is-enhanced .bl-header__navigation { position: absolute; inset: 100% 0 auto; padding: var(--bl-space-4) var(--bl-gutter) max(var(--bl-space-8), env(safe-area-inset-bottom)); background: var(--bl-bg-primary); block-size: calc(100vh - var(--bl-admin-offset) - var(--bl-header-mobile-height)); block-size: calc(100dvh - var(--bl-admin-offset) - var(--bl-header-mobile-height)); overflow-y: auto; overscroll-behavior: contain; }
  .bl-header.is-mobile-open .bl-header__navigation { animation: bl-header-reveal var(--bl-header-reveal) var(--bl-ease-out) both; }
}
@media (max-width: 782px) { body.admin-bar .bl-header { --bl-admin-offset: 46px; } }
@media (prefers-reduced-motion: reduce) {
  .bl-header *, .bl-header *::before, .bl-header *::after { animation: none; transition: none; }
  .bl-header__solution > .bl-header__icon { transition: none; }
}
@media (forced-colors: active) {
  .bl-header__cta, .bl-header__solution:hover { border-color: ButtonText; }
  .bl-header a:focus-visible, .bl-header button:focus-visible, .bl-header summary:focus-visible { outline-color: Highlight; }
}