/* ==========================================================================
   Brantec theme – component styles.
   Tokens (colours, fonts, sizes) come from theme.json as CSS variables.
   ========================================================================== */

:root {
	--bt-brand: var(--wp--preset--color--brand);
	--bt-action: var(--wp--preset--color--action);
	--bt-accent: var(--wp--preset--color--accent);
	--bt-ink: var(--wp--preset--color--ink);
	--bt-slate: var(--wp--preset--color--slate);
	--bt-line: var(--wp--preset--color--line);
	--bt-mist: var(--wp--preset--color--mist);
	--bt-night: var(--wp--preset--color--night);
	--bt-mono: var(--wp--preset--font-family--mono);
	--bt-radius: 14px;
	--bt-header-h: 72px;
}

.wp-site-blocks > * + * { margin-block-start: 0; }
.wp-site-blocks > main + * { margin-block-start: 0; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--bt-header-h) + 16px); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }
body { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
img { height: auto; }
:where(a, button, input, select, textarea, summary):focus-visible { outline: 2px solid var(--bt-action); outline-offset: 3px; }

.skip-link.screen-reader-text:focus { background: #fff; color: var(--bt-ink); padding: .75rem 1rem; z-index: 1000; }

/* ---------- Header ---------- */
.bt-header { position: sticky; top: 0; z-index: 50; background: rgba(244, 248, 252, .86); backdrop-filter: saturate(1.4) blur(12px); -webkit-backdrop-filter: saturate(1.4) blur(12px); border-bottom: 1px solid transparent; transition: border-color .2s; }
.admin-bar .bt-header { top: var(--wp-admin--admin-bar--height, 32px); }
.bt-header.is-scrolled { border-bottom-color: var(--bt-line); }
.bt-header__inner { min-height: var(--bt-header-h); }
.bt-header .wp-block-site-logo img { width: auto; max-height: 26px; }
.bt-header .wp-block-navigation a { text-decoration: none; color: var(--bt-slate); }
.bt-header .wp-block-navigation a:hover,
.bt-header .wp-block-navigation .current-menu-item > a { color: var(--bt-ink); }
.bt-header .wp-block-navigation__responsive-container.is-menu-open { padding: 1.5rem; background: var(--wp--preset--color--frost); }
.bt-header .wp-block-navigation__responsive-container.is-menu-open .wp-block-navigation-item { font-size: 1.375rem; }
.bt-header .wp-block-button__link { padding: .6rem 1.1rem; font-size: .875rem; }

/* ---------- Section label: "01 — WHO WE ARE" ---------- */
.is-style-eyebrow {
	font-family: var(--bt-mono); font-size: var(--wp--preset--font-size--label) !important; letter-spacing: .14em; text-transform: uppercase;
	color: var(--bt-slate); display: flex; align-items: center; gap: .6rem; margin-bottom: 1rem;
}
.is-style-eyebrow::before { content: ""; width: 28px; height: 1px; background: currentColor; opacity: .5; }
.is-style-eyebrow strong { color: var(--bt-accent); font-weight: 500; }
.has-night-background-color .is-style-eyebrow, .is-style-dark .is-style-eyebrow { color: #A9B6C3; }

.is-style-lead { font-size: var(--wp--preset--font-size--large); line-height: 1.45; color: var(--bt-ink); letter-spacing: -.01em; }
.has-slate-color { color: var(--bt-slate); }

/* Mono micro-label (spec strips, card meta) */
.bt-mono, .bt-mono p { font-family: var(--bt-mono); font-size: var(--wp--preset--font-size--label); letter-spacing: .12em; text-transform: uppercase; }

/* ---------- Buttons ---------- */
.wp-block-button.is-style-ghost .wp-block-button__link { background: transparent; color: var(--bt-ink); box-shadow: inset 0 0 0 1px var(--bt-line); }
.wp-block-button.is-style-ghost .wp-block-button__link:hover { box-shadow: inset 0 0 0 1px var(--bt-ink); background: transparent; }
.has-night-background-color .wp-block-button.is-style-ghost .wp-block-button__link,
.is-style-dark .wp-block-button.is-style-ghost .wp-block-button__link { color: #fff; box-shadow: inset 0 0 0 1px rgba(255,255,255,.35); }
.wp-block-button.is-style-arrow .wp-block-button__link { background: none; padding: 0; color: var(--bt-action); border-radius: 0; font-family: var(--bt-mono); text-transform: uppercase; letter-spacing: .1em; font-size: .8125rem; }
.wp-block-button__link::after { content: " →"; transition: margin .15s; }
.wp-block-button__link:hover::after { margin-left: .2em; }

/* ---------- Cards / panels ---------- */
.wp-block-group.is-style-card { background: #fff; border: 1px solid var(--bt-line); border-radius: var(--bt-radius); padding: clamp(1.25rem, 3vw, 2rem); height: 100%; transition: border-color .2s, transform .2s; }
.wp-block-group.is-style-card:hover { border-color: #B9C6D3; }
.wp-block-group.is-style-dark { background: var(--bt-night); color: #D9E1E8; border-radius: var(--bt-radius); padding: clamp(1.5rem, 4vw, 3rem); }
.wp-block-group.is-style-dark :where(h1,h2,h3,h4) { color: #fff; }
.bt-card-num { font-family: var(--bt-mono); font-size: .8125rem; color: var(--bt-accent); letter-spacing: .08em; margin: 0 0 1.5rem; }
.wp-block-columns.bt-equal > .wp-block-column { display: flex; flex-direction: column; }
.wp-block-columns.bt-equal > .wp-block-column > .wp-block-group { flex: 1; }

/* ---------- Hero ---------- */
.bt-hero { position: relative; overflow: hidden; background: linear-gradient(180deg, #8FA9CF 0%, #B7C9E2 45%, #E3EBF5 100%); color: #fff; margin-top: calc(-1 * var(--bt-header-h)); padding-top: calc(var(--bt-header-h) + clamp(3rem, 8vw, 6rem)) !important; }
.bt-hero h1 { color: #fff; font-size: var(--wp--preset--font-size--display); font-weight: 200; letter-spacing: -.045em; line-height: .95; margin: 0; }
.bt-hero h1 .bt-hero__sub { display: block; font-size: var(--wp--preset--font-size--small); font-weight: 400; letter-spacing: 0; line-height: 1.4; margin-top: 1rem; color: #F4F8FC; }
.bt-hero .bt-hero__intro { color: var(--bt-ink); }
.bt-hero .bt-hero__intro strong { font-weight: 500; }
.bt-hero__visual img { filter: drop-shadow(0 40px 40px rgba(18,22,28,.18)); }
.bt-spec { border-top: 1px solid rgba(40,48,54,.18); padding-top: .6rem; color: var(--bt-ink); }
.bt-spec p { margin: 0; display: flex; justify-content: space-between; gap: 1rem; font-family: var(--bt-mono); font-size: .6875rem; letter-spacing: .12em; text-transform: uppercase; padding: .35rem 0; border-bottom: 1px solid rgba(40,48,54,.1); }
.bt-spec p span { color: var(--bt-slate); }

/* Page hero (internal pages) */
.bt-page-hero { background: var(--bt-mist); }
.bt-page-hero h1 { max-width: 16ch; }

/* ---------- Stats ---------- */
.bt-stat .bt-stat__value { font-size: clamp(2.5rem, 5vw, 3.5rem); font-weight: 300; letter-spacing: -.03em; color: var(--bt-brand); line-height: 1; margin: 0 0 .75rem; }
.bt-stat .bt-stat__label { font-family: var(--bt-mono); font-size: .6875rem; letter-spacing: .12em; text-transform: uppercase; color: var(--bt-slate); margin: 0; max-width: 24ch; }

/* ---------- Lists ---------- */
ul.is-style-ticks { list-style: none; padding-left: 0; }
ul.is-style-ticks li { position: relative; padding-left: 1.75rem; margin-bottom: .5rem; }
ul.is-style-ticks li::before { content: ""; position: absolute; left: 0; top: .55em; width: 12px; height: 7px; border-left: 2px solid var(--bt-action); border-bottom: 2px solid var(--bt-action); transform: rotate(-45deg); }
ol.is-style-steps { list-style: none; counter-reset: step; padding: 0; display: grid; gap: 0; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); border-top: 1px solid var(--bt-line); }
ol.is-style-steps li { counter-increment: step; padding: 1.25rem 1rem 1.25rem 0; border-bottom: 1px solid var(--bt-line); }
ol.is-style-steps li::before { content: counter(step, decimal-leading-zero); display: block; font-family: var(--bt-mono); font-size: .75rem; color: var(--bt-accent); margin-bottom: .5rem; }

/* ---------- Accordion (Details block) – benefits & FAQs ---------- */
.wp-block-details summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; font-size: var(--wp--preset--font-size--large); letter-spacing: -.01em; }
.wp-block-details summary::-webkit-details-marker { display: none; }
.wp-block-details summary::after { content: "+"; font-family: var(--bt-mono); color: var(--bt-slate); font-size: 1.25rem; transition: transform .2s; }
.wp-block-details[open] summary::after { transform: rotate(45deg); }
.wp-block-details > :not(summary) { margin-top: 1rem; max-width: 70ch; color: var(--bt-slate); }
.bt-accordion .wp-block-details:last-child { border-bottom: 1px solid var(--bt-line); }

/* ---------- Industries grid ---------- */
.bt-industries { display: grid !important; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 1px !important; background: var(--bt-line); border: 1px solid var(--bt-line); border-radius: var(--bt-radius); overflow: hidden; }
.bt-industries > .wp-block-group { background: #fff; padding: 1.5rem; margin: 0 !important; }
.bt-industries h3 { font-size: 1.25rem; margin: .25rem 0 .5rem; }
.bt-industries p { color: var(--bt-slate); font-size: var(--wp--preset--font-size--small); margin: 0; }

/* ---------- Client logos ---------- */
.bt-logos { display: grid !important; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 1px !important; background: var(--bt-line); border: 1px solid var(--bt-line); border-radius: var(--bt-radius); overflow: hidden; }
.bt-logos figure { background: #fff; margin: 0 !important; display: grid; place-items: center; aspect-ratio: 3 / 2; padding: 1.25rem; }
.bt-logos img { max-height: 48px; width: auto; filter: grayscale(1); opacity: .75; transition: filter .2s, opacity .2s; }
.bt-logos figure:hover img { filter: none; opacity: 1; }

/* ---------- Article cards (Query Loop) ---------- */
.bt-posts .wp-block-post { background: #fff; border: 1px solid var(--bt-line); border-radius: var(--bt-radius); overflow: hidden; display: flex; flex-direction: column; }
.bt-posts .wp-block-post-featured-image { margin: 0; aspect-ratio: 16/10; overflow: hidden; }
.bt-posts .wp-block-post-featured-image img { width: 100%; height: 100%; object-fit: cover; }
.bt-posts .bt-post-body { padding: 1.25rem 1.5rem 1.5rem; }
.bt-posts .wp-block-post-title { font-size: 1.25rem; font-weight: 500; letter-spacing: -.01em; }
.bt-posts .wp-block-post-title a { color: var(--bt-ink); text-decoration: none; }
.bt-posts .wp-block-post-title a:hover { color: var(--bt-action); }
.bt-posts .wp-block-post-date { font-family: var(--bt-mono); font-size: .6875rem; letter-spacing: .12em; text-transform: uppercase; color: var(--bt-slate); }

/* ---------- CTA band ---------- */
.bt-cta { background: var(--bt-night); color: #D9E1E8; }
.bt-cta h2 { color: #fff; font-weight: 300; }
.bt-cta a:not(.wp-block-button__link) { color: #fff; }
.bt-cta .bt-cta__phone { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 300; letter-spacing: -.02em; }
.bt-cta .bt-cta__phone a { text-decoration: none; }

/* ---------- Partner feature (e.g. SWEP) ---------- */
.bt-partner { border: 1px solid var(--bt-line); border-radius: var(--bt-radius); background: #fff; }
.bt-partner .wp-block-image img { max-height: 56px; width: auto; }

/* ---------- Footer ---------- */
.bt-footer { background: var(--bt-night); color: #A9B6C3; font-size: var(--wp--preset--font-size--small); }
.bt-footer a { color: #D9E1E8; text-decoration: none; }
.bt-footer a:hover { color: #fff; text-decoration: underline; }
.bt-footer h2 { font-family: var(--bt-mono); font-size: .6875rem; letter-spacing: .14em; text-transform: uppercase; color: #7F8E9C; font-weight: 400; margin-bottom: 1rem; }
.bt-footer ul { list-style: none; padding: 0; margin: 0; }
.bt-footer li { margin-bottom: .5rem; }
.bt-footer .wp-block-site-logo img { filter: brightness(0) invert(1); max-height: 26px; width: auto; }
.bt-footer__base { border-top: 1px solid rgba(255,255,255,.1); font-family: var(--bt-mono); font-size: .6875rem; letter-spacing: .1em; text-transform: uppercase; }

/* ---------- Content pages (articles) ---------- */
.bt-prose { font-size: 1.125rem; }
.bt-prose h2 { font-size: 2rem; margin-top: 2.5em; }
.bt-prose h3 { margin-top: 2em; }
.bt-prose :where(p, li) { color: #33404B; }

/* ---------- Forms (plugin-agnostic) ---------- */
.bt-form :where(input:not([type=checkbox]):not([type=radio]):not([type=submit]), select, textarea) { width: 100%; font: inherit; padding: .8rem 1rem; border: 1px solid var(--bt-line); border-radius: 10px; background: #fff; color: var(--bt-ink); }
.bt-form :where(input, select, textarea):focus { border-color: var(--bt-action); outline: 2px solid rgba(10,92,184,.2); outline-offset: 0; }
.bt-form label { font-size: var(--wp--preset--font-size--small); font-weight: 500; }

/* ---------- Mobile quote bar ---------- */
.bt-mobile-cta { display: none; }
@media (max-width: 781px) {
	.bt-mobile-cta { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem; position: fixed; left: 0; right: 0; bottom: 0; z-index: 60; padding: .6rem max(.75rem, env(safe-area-inset-left)) calc(.6rem + env(safe-area-inset-bottom)); background: rgba(244,248,252,.96); border-top: 1px solid var(--bt-line); backdrop-filter: blur(10px); }
	.bt-mobile-cta a { display: block; text-align: center; padding: .75rem; border-radius: 999px; font-weight: 500; font-size: .9375rem; text-decoration: none; }
	.bt-mobile-cta a:first-child { box-shadow: inset 0 0 0 1px var(--bt-line); color: var(--bt-ink); background: #fff; }
	.bt-mobile-cta a:last-child { background: var(--bt-action); color: #fff; }
	body { padding-bottom: 72px; }
	.bt-header .bt-header__cta { display: none; }
	.bt-hero__visual { order: -1; }
}

/* ---------- v0.1.1 fixes ---------- */
.wp-block-separator.alignwide { width: 100%; max-width: var(--wp--style--global--wide-size); border-top-width: 1px; opacity: 1; }
.is-style-card h3, .bt-accordion summary { font-size: clamp(1.25rem, 2vw, 1.5rem); }
.bt-industries { grid-template-columns: repeat(4, 1fr); }
.bt-logos { grid-template-columns: repeat(6, 1fr); }
@media (max-width: 1000px) { .bt-industries { grid-template-columns: repeat(2, 1fr); } .bt-logos { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 520px) { .bt-industries { grid-template-columns: 1fr; } }
.bt-cta .wp-block-button.is-style-ghost .wp-block-button__link { color: #fff; box-shadow: inset 0 0 0 1px rgba(255,255,255,.35); }
.bt-cta .wp-block-button.is-style-ghost .wp-block-button__link:hover { box-shadow: inset 0 0 0 1px #fff; }
.bt-posts .wp-block-post-excerpt__more-link { font-family: var(--bt-mono); font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; text-decoration: none; }
.bt-posts .wp-block-post-excerpt__excerpt { color: var(--bt-slate); font-size: var(--wp--preset--font-size--small); }
.bt-hero__visual img { border-radius: 18px; box-shadow: 0 30px 60px rgba(18,22,28,.22); filter: none; }
.bt-page-hero .is-style-lead { font-size: clamp(1.0625rem, 1.6vw, 1.1875rem); color: var(--bt-slate); }
.bt-page-hero h1 { max-width: 18ch; }
.bt-industries .bt-ind-img { margin: -1.5rem -1.5rem 1.25rem !important; aspect-ratio: 16 / 10; overflow: hidden; }
.bt-industries .bt-ind-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .4s ease; }
.bt-industries > .wp-block-group:hover .bt-ind-img img { transform: scale(1.03); }

/* ---------- Forminator forms (brand overrides) ---------- */
.bt-form .forminator-ui.forminator-custom-form { font-family: inherit !important; }
.bt-form .forminator-ui .forminator-label { font-family: inherit !important; font-size: .875rem !important; font-weight: 500 !important; color: var(--bt-ink) !important; }
.bt-form .forminator-ui .forminator-input,
.bt-form .forminator-ui .forminator-textarea,
.bt-form .forminator-ui select,
.bt-form .forminator-ui .select2-selection { font-family: inherit !important; font-size: 1rem !important; border: 1px solid var(--bt-line) !important; border-radius: 10px !important; background: #fff !important; color: var(--bt-ink) !important; padding: .75rem .9rem !important; }
.bt-form .forminator-ui .forminator-input:focus,
.bt-form .forminator-ui .forminator-textarea:focus { border-color: var(--bt-action) !important; box-shadow: 0 0 0 3px rgba(10,92,184,.15) !important; }
.bt-form .forminator-ui .forminator-button-submit { font-family: inherit !important; background: var(--bt-action) !important; color: #fff !important; border-radius: 999px !important; padding: .85rem 1.6rem !important; font-weight: 500 !important; font-size: .9375rem !important; }
.bt-form .forminator-ui .forminator-button-submit:hover { background: var(--bt-brand) !important; }
.bt-form .forminator-ui .forminator-description, .bt-form .forminator-ui .forminator-checkbox__label { font-family: inherit !important; color: var(--bt-slate) !important; font-size: .875rem !important; }
.bt-form .forminator-ui .forminator-error-message { font-family: inherit !important; }
.bt-map iframe { border-radius: var(--bt-radius); margin-top: 1.5rem; }
.wp-block-group.is-style-dark + .wp-block-paragraph, .is-style-dark ~ p { margin-top: 1.25rem; }
.wp-block-group.is-style-card { height: auto; }
.bt-equal .wp-block-group.is-style-card { height: 100%; }
.wp-block-column > .wp-block-group + .wp-block-group { margin-top: 1.25rem; }

/* ---------- Tables (spec / comparison) ---------- */
.bt-table table { border-collapse: collapse; width: 100%; font-size: var(--wp--preset--font-size--small); background: #fff; border: 1px solid var(--bt-line); border-radius: var(--bt-radius); overflow: hidden; }
.bt-table th, .bt-table td { border: 0; border-bottom: 1px solid var(--bt-line); padding: .8rem 1rem; text-align: left; vertical-align: top; }
.bt-table thead th { font-family: var(--bt-mono); font-size: .6875rem; letter-spacing: .12em; text-transform: uppercase; color: var(--bt-slate); font-weight: 500; background: var(--bt-mist); }
.bt-table tbody tr:last-child td { border-bottom: 0; }
.bt-table td:first-child { font-weight: 500; color: var(--bt-ink); }
.bt-table:not(.bt-compare) thead { display: none; }
.bt-compare td:nth-child(2) { color: var(--bt-brand); }
@media (max-width: 600px) { .bt-table th, .bt-table td { padding: .6rem .6rem; } }
.bt-partner-logo img { max-height: 40px; width: auto; }
.wp-block-image figcaption { font-size: .8125rem; color: var(--bt-slate); margin-top: .5rem; }
.wp-block-navigation .wp-block-navigation__submenu-container { border: 1px solid var(--bt-line) !important; border-radius: 10px; padding: .4rem 0; box-shadow: var(--wp--preset--shadow--card); }
.wp-block-navigation .wp-block-navigation__submenu-container a { padding: .5rem 1rem !important; }

/* ---------- 3D plate heat exchanger (v0.5.0) ---------- */
/* Hero: rotating unit behind the headline (added by theme.js when WebGL is available). */
.bt-hero__stage { position: absolute; inset: 0; z-index: 0; }
.bt-hero__stage canvas { display: block; width: 100% !important; height: 100% !important; cursor: grab; touch-action: pan-y; }
.bt-hero__stage canvas:active { cursor: grabbing; }
.bt-hero--3d > :not(.bt-hero__stage) { position: relative; z-index: 1; }
.bt-hero--3d h1, .bt-hero--3d .wp-block-columns, .bt-hero--3d .wp-block-column { pointer-events: none; }
.bt-hero--3d .wp-block-column > * { pointer-events: auto; }
.bt-hero--3d .bt-hero__visual figure { visibility: hidden; }
.bt-hero__visual { position: relative; }
.bt-hero__visual .bt-hero__stage { inset: -12% -6%; pointer-events: auto; }
@media (max-width: 781px) {
	.bt-hero--3d .bt-hero__visual { min-height: 78vw; }
}

/* Inside the engineering – works as a normal section; becomes a scroll animation when 3D loads. */
.bt-assembly { --bt-asm-g: max(clamp(16px, 4vw, 48px), calc((100vw - 1240px) / 2)); background: var(--wp--preset--color--frost); padding: var(--wp--preset--spacing--60) clamp(16px, 4vw, 48px); margin-block: 0; }
.bt-assembly__pin { max-width: 1240px; margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); grid-template-areas: "head still" "specs still" "steps still"; column-gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.bt-assembly__head { grid-area: head; }
.bt-assembly__specs { grid-area: specs; max-width: 320px; margin: 1.5rem 0 0 !important; }
.bt-assembly__steps { grid-area: steps; margin-top: 1rem !important; }
.bt-assembly__still { grid-area: still; margin: 0 !important; align-self: center; }
.bt-assembly__still img { width: 100%; height: auto; }
.bt-pill { display: inline-block; border: 1px solid rgba(40,48,54,.2); border-radius: 100px; padding: 7px 16px; font-family: var(--bt-mono); font-size: .66rem; letter-spacing: .16em; text-transform: uppercase; color: var(--bt-slate); margin: 0 0 1.25rem; }
.bt-assembly__head h2 { max-width: 20ch; margin: 0; font-weight: 300; }
.bt-assembly__step { border-top: 1px solid var(--bt-line); padding: 1.25rem 0; margin: 0 !important; }
.bt-assembly__step > * { margin: 0 !important; }
.bt-assembly__idx { font-family: var(--bt-mono); font-size: .7rem !important; letter-spacing: .15em; color: var(--bt-accent); margin-bottom: .55rem !important; }
.bt-assembly__step h3 { font-size: 1.05rem; font-weight: 400; letter-spacing: -.01em; margin-bottom: .35rem !important; }
.bt-assembly__step p:not(.bt-assembly__idx) { color: var(--bt-slate); font-size: .875rem; line-height: 1.55; }
@media (max-width: 781px) {
	.bt-assembly__pin { grid-template-columns: 1fr; grid-template-areas: "head" "still" "specs" "steps"; }
	.bt-assembly__still { margin-top: 1.5rem !important; }
}

.bt-assembly.is-3d { height: 600vh; padding: 0; }
.bt-assembly.is-3d .bt-assembly__pin { position: sticky; top: var(--bt-header-h); height: calc(100vh - var(--bt-header-h)); height: calc(100svh - var(--bt-header-h)); max-width: none; display: block; overflow: hidden; }
.bt-assembly.is-3d .bt-assembly__still { display: none; }
.bt-assembly__stage { position: absolute; inset: 0; z-index: 1; }
.bt-assembly__stage canvas { display: block; width: 100% !important; height: 100% !important; }
.bt-assembly.is-3d .bt-assembly__head { position: absolute; z-index: 3; top: clamp(32px, 8vh, 110px); left: var(--bt-asm-g); pointer-events: none; }
.bt-assembly.is-3d .bt-assembly__specs { position: absolute; z-index: 3; top: clamp(32px, 8vh, 110px); right: var(--bt-asm-g); width: min(320px, 70vw); margin: 0 !important; }
.bt-assembly.is-3d .bt-assembly__steps { position: absolute; z-index: 3; right: var(--bt-asm-g); bottom: clamp(32px, 7vh, 90px); width: min(380px, 80vw); margin: 0 !important; }
.bt-assembly.is-3d .bt-assembly__step { opacity: .32; transition: opacity .45s ease; }
.bt-assembly.is-3d .bt-assembly__step.is-active { opacity: 1; }
.bt-assembly__progress { position: absolute; z-index: 3; left: var(--bt-asm-g); bottom: clamp(32px, 7vh, 90px); display: flex; align-items: center; gap: 14px; font-family: var(--bt-mono); font-size: .7rem; letter-spacing: .15em; text-transform: uppercase; color: #8a96a3; }
.bt-assembly__progress b { position: relative; width: 120px; height: 1px; background: rgba(40,48,54,.18); }
.bt-assembly__progress i { position: absolute; left: 0; top: 0; bottom: 0; width: 0; background: var(--bt-action); }
@media (max-width: 920px) {
	.bt-assembly.is-3d { height: 340vh; }
	.bt-assembly.is-3d .bt-assembly__pin { display: flex; flex-direction: column; padding: 28px clamp(16px, 4vw, 48px) 24px; }
	.bt-assembly.is-3d .bt-assembly__head, .bt-assembly.is-3d .bt-assembly__steps { position: relative; inset: auto; width: auto; }
	.bt-assembly.is-3d .bt-assembly__head h2 { font-size: 1.75rem; }
	.bt-assembly.is-3d .bt-assembly__stage { position: relative; inset: auto; flex: 1 1 auto; min-height: 0; order: 2; }
	.bt-assembly.is-3d .bt-assembly__steps { order: 3; }
	.bt-assembly.is-3d .bt-assembly__step { opacity: 1; border-top: 0; padding: .5rem 0 0; }
	.bt-assembly.is-3d .bt-assembly__step:not(.is-active) { display: none; }
	.bt-assembly.is-3d .bt-assembly__specs, .bt-assembly__progress { display: none; }
}
@media (max-width: 781px) {
	.bt-assembly.is-3d .bt-assembly__pin { height: calc(100svh - var(--bt-header-h) - 72px); }
}

/* ---------- v0.6 restructure ---------- */
/* Breadcrumbs (Rank Math) – sit on the page-hero background */
.bt-crumbs { background: var(--bt-mist); padding: .9rem clamp(16px, 4vw, 48px) 0; }
.bt-crumbs .rank-math-breadcrumb p { margin: 0; font-family: var(--bt-mono); font-size: .6875rem; letter-spacing: .1em; text-transform: uppercase; color: var(--bt-slate); }
.bt-crumbs a { color: var(--bt-slate); text-decoration: none; }
.bt-crumbs a:hover { color: var(--bt-action); }
.bt-crumbs .separator { margin: 0 .45em; opacity: .5; }
.bt-crumbs + .wp-block-post-content > .bt-page-hero:first-child, main > .bt-crumbs ~ * .bt-page-hero:first-child { padding-top: var(--wp--preset--spacing--50) !important; }

/* Overview grids built from child pages */
.bt-hubgrid .wp-block-post-template { gap: 1.25rem; margin-top: var(--wp--preset--spacing--40); }
.bt-hubgrid .wp-block-post { background: #fff; border: 1px solid var(--bt-line); border-radius: 14px; padding: 1.5rem; display: flex; flex-direction: column; transition: border-color .2s, box-shadow .2s; }
.bt-hubgrid .wp-block-post:hover { border-color: #b9c6d4; box-shadow: var(--wp--preset--shadow--card); }
.has-white-background-color .bt-hubgrid .wp-block-post { background: var(--wp--preset--color--frost); }
.bt-hubgrid .wp-block-post-title { font-size: clamp(1.125rem, 1.6vw, 1.3125rem); margin: 0 0 .5rem; }
.bt-hubgrid .wp-block-post-title a { color: var(--bt-ink); text-decoration: none; }
.bt-hubgrid .wp-block-post-excerpt { color: var(--bt-slate); font-size: .9375rem; margin: 0; flex: 1; display: flex; flex-direction: column; }
.bt-hubgrid .wp-block-post-excerpt__excerpt { margin: 0 0 1rem; }
.bt-hubgrid .wp-block-post-excerpt__more-text { margin-top: auto; }
.bt-hubgrid .wp-block-post-excerpt__more-link { font-family: var(--bt-mono); font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; color: var(--bt-action); text-decoration: none; }
.bt-hubgrid .wp-block-post-excerpt__more-link::after { content: " →"; }
.bt-hubgrid .bt-hub-img { margin: -1.5rem -1.5rem 1.25rem; overflow: hidden; border-radius: 14px 14px 0 0; }
.bt-hubgrid .bt-hub-img img { width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 1000px) { .bt-hubgrid .wp-block-post-template.is-layout-grid { grid-template-columns: repeat(2, minmax(0, 1fr)) !important; } }
@media (max-width: 600px) { .bt-hubgrid .wp-block-post-template.is-layout-grid { grid-template-columns: 1fr !important; } }

/* Internal "to confirm" notes – only ever used on unpublished drafts */
.bt-todo { border: 2px dashed var(--bt-accent); background: #fff5f5; color: #9b1116; padding: 1rem 1.25rem; border-radius: 10px; }

/* Header: 7 menu items + button — switch to the menu button below 1100px */
.bt-header .bt-mainnav { font-size: .9375rem; }
@media (max-width: 1100px) {
	.bt-header .wp-block-navigation__responsive-container-open:not(.always-shown) { display: flex !important; }
	.bt-header .wp-block-navigation__responsive-container:not(.hidden-by-default):not(.is-menu-open) { display: none !important; }
}
/* Mobile menu: sections collapsed until tapped */
.bt-header .is-menu-open .wp-block-navigation-submenu__toggle { display: inline-flex !important; margin-left: .5rem; }
.bt-header .is-menu-open .has-child:not(.bt-open) > .wp-block-navigation__submenu-container { display: none !important; }
.bt-header .is-menu-open .has-child > .wp-block-navigation-submenu__toggle svg { transition: transform .2s; }
.bt-header .is-menu-open .has-child.bt-open > .wp-block-navigation-submenu__toggle svg { transform: rotate(180deg); }
.bt-header .is-menu-open .wp-block-navigation__submenu-container { padding: .25rem 0 .5rem 1rem !important; border: 0 !important; box-shadow: none !important; }
.bt-header .is-menu-open .wp-block-navigation__submenu-container .wp-block-navigation-item { font-size: 1.0625rem !important; }
.bt-header .is-menu-open .wp-block-navigation-item.has-child { flex-direction: row; flex-wrap: wrap; align-items: center; }
.bt-header .is-menu-open .wp-block-navigation-item.has-child > .wp-block-navigation__submenu-container { flex-basis: 100%; }
/* Desktop dropdowns open left-aligned under their menu item */
@media (min-width: 1101px) {
	.bt-header .wp-block-navigation.items-justified-right .wp-block-navigation__container .has-child > .wp-block-navigation__submenu-container { left: -1rem; right: auto; }
}

/* The header's blur creates a containing block that would trap the full-screen mobile menu inside the header bar. */
@media (max-width: 1100px) {
	.bt-header { -webkit-backdrop-filter: none; backdrop-filter: none; background: rgba(244, 248, 252, .98); }
}

/* Mobile menu layout: left-aligned list, arrow points down when closed and up when open */
.bt-header .is-menu-open .wp-block-navigation__responsive-container-content .wp-block-navigation__container { align-items: stretch !important; width: 100%; }
.bt-header .is-menu-open .wp-block-navigation-item { justify-content: flex-start !important; text-align: left; width: 100%; }
.bt-header .is-menu-open .wp-block-navigation-item.has-child { border-bottom: 1px solid var(--bt-line); padding: .35rem 0; }
.bt-header .is-menu-open .wp-block-navigation-submenu__toggle { margin-left: auto !important; width: 2.5rem; height: 2.5rem; justify-content: center; }
.bt-header .is-menu-open .wp-block-navigation-submenu__toggle svg { transform: none !important; width: 14px; height: 14px; }
.bt-header .is-menu-open .has-child.bt-open > .wp-block-navigation-submenu__toggle svg { transform: rotate(180deg) !important; }
.bt-header .is-menu-open .wp-block-navigation__submenu-container { align-items: flex-start !important; width: 100%; }
.bt-header .is-menu-open .wp-block-navigation__submenu-container .wp-block-navigation-item__content { padding: .45rem 0 !important; }
.bt-header .is-menu-open .wp-block-navigation-item:not(.has-child) { align-items: flex-start !important; }