:root {
  --blue: #0c46b2;
  --blue-bar: #1357bf;
  --navy: #0c1830;
  --ink: #1c2530;
  --paper: #ffffff;
  --paper-tint: #f4f7fb;
  --border: #e2e8f0;
  --radius: 14px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Montserrat', sans-serif;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: 'PT Serif', serif; font-weight: 700; margin: 0 0 .5em; line-height: 1.15; }
p { line-height: 1.6; }
a { color: inherit; text-decoration: none; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 28px; border-radius: 999px; font-weight: 600; font-size: 15px;
  border: 2px solid transparent; cursor: pointer; transition: transform .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-bar); }
.btn-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,.7); }
.btn-outline:hover { background: rgba(255,255,255,.12); }
.btn-outline-dark { background: transparent; color: var(--ink); border-color: var(--border); }
.btn-phone { background: var(--blue); color: #fff; padding: 10px 20px; font-size: 14px; gap: 8px; }
.btn-phone-icon { font-size: 15px; line-height: 1; }
.btn-block { width: 100%; }
.btn-sm { padding: 8px 18px; font-size: 13px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 40; background: #fff; border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding-top: 14px; padding-bottom: 14px; gap: 24px; }
.logo { font-family: 'PT Serif', serif; font-weight: 700; font-size: 22px; color: var(--ink); white-space: nowrap; }
.logo span { color: var(--blue); }
.main-nav { display: flex; gap: 28px; flex-wrap: wrap; }
.main-nav a { font-size: 14px; font-weight: 600; color: var(--ink); }
.main-nav a:hover, .main-nav a.active { color: var(--blue); }

/* Hero */
.hero { position: relative; min-height: 640px; display: flex; align-items: center; overflow: hidden; }
.hero-media { position: absolute; inset: 0; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: 68% 45%; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(100deg, rgba(12,24,48,.88) 20%, rgba(12,24,48,.62) 60%, rgba(12,24,48,.5) 100%); }
.hero-content { position: relative; color: #fff; padding: 100px 24px; max-width: 720px; }
.eyebrow { letter-spacing: .12em; text-transform: uppercase; font-size: 13px; font-weight: 700; color: #9ec1ff; margin-bottom: 14px; }
.hero h1 { font-size: clamp(32px, 4.2vw, 52px); color: #fff; }
.hero-lead { font-size: 17px; color: rgba(255,255,255,.88); max-width: 560px; margin: 20px 0 32px; }
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; }

/* Trust strip */
.trust-strip { background: var(--navy); color: #fff; padding: 32px 0; }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; text-align: center; }
.trust-num { display: block; font-family: 'PT Serif', serif; font-size: 30px; font-weight: 700; color: #9ec1ff; }
.trust-label { display: block; font-size: 13px; color: rgba(255,255,255,.8); margin-top: 4px; }

/* Intro */
.intro { padding: 64px 24px 32px; max-width: 820px; }
.intro h2 { font-size: 28px; }
.intro p { color: #4a5568; font-size: 16px; }

/* Catalog */
.catalog { padding: 32px 24px 80px; }
.catalog-head { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; margin-bottom: 28px; }
.catalog-head h2 { font-size: 26px; margin: 0; }
.filter-bar { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-btn {
  padding: 9px 18px; border-radius: 999px; border: 1.5px solid var(--border); background: #fff;
  font-family: 'Montserrat'; font-size: 13px; font-weight: 600; color: var(--ink); cursor: pointer; transition: all .15s ease;
}
.filter-btn:hover { border-color: var(--blue); }
.filter-btn.active { background: var(--blue); border-color: var(--blue); color: #fff; }

.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(260px, 100%), 1fr)); gap: 20px; }
.sys-card {
  border: 1px solid var(--border); border-radius: var(--radius); background: #fff; overflow: hidden;
  display: flex; flex-direction: column; transition: box-shadow .2s ease, transform .2s ease;
}
.sys-card:hover { box-shadow: 0 12px 28px rgba(12,24,48,.1); transform: translateY(-2px); }
.sys-card .img-wrap { background: var(--paper-tint); padding: 18px; display: flex; align-items: center; justify-content: center; height: 160px; }
.sys-card .img-wrap img { max-width: 100%; max-height: 100%; object-fit: contain; }
.sys-card-body { padding: 18px 18px 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.sys-card-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.sys-card h3 { font-size: 17px; margin: 0; }
.producer-tag { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--blue); background: #eaf1ff; padding: 4px 9px; border-radius: 999px; white-space: nowrap; }
.spec-list { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 12px; font-size: 12.5px; color: #4a5568; margin: 4px 0 6px; }
.spec-list div b { display: block; color: var(--ink); font-size: 13.5px; font-weight: 700; }
.compare-check { display: flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; margin-top: auto; padding-top: 10px; border-top: 1px dashed var(--border); cursor: pointer; }
.compare-check input { width: 16px; height: 16px; accent-color: var(--blue); cursor: pointer; }

/* Other materials */
.other-materials { padding: 20px 24px 80px; }
.other-materials h2 { font-size: 26px; margin-bottom: 24px; }
.material-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr)); gap: 20px; }
.material-card { background: var(--paper-tint); border-radius: var(--radius); padding: 26px; }
.material-card h3 { font-size: 18px; }
.material-card p { font-size: 14px; color: #4a5568; margin-bottom: 14px; }
.link-cta { font-weight: 700; font-size: 14px; color: var(--blue); }

/* Contact */
.contact-section { background: var(--navy); color: #fff; padding: 72px 0; }
.contact-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.contact-info h2 { color: #fff; font-size: 28px; }
.contact-info p { color: rgba(255,255,255,.82); }
.contact-phone { display: inline-block; font-size: 24px; font-weight: 700; color: #9ec1ff; margin: 12px 0; }
.contact-hours { font-size: 14px; }
.contact-form { background: #fff; border-radius: var(--radius); padding: 28px; display: flex; flex-direction: column; gap: 14px; color: var(--ink); }
.contact-form label { font-size: 13px; font-weight: 600; display: flex; flex-direction: column; gap: 6px; }
.contact-form input, .contact-form textarea {
  font-family: 'Montserrat'; font-size: 16px; padding: 11px 13px; border: 1.5px solid var(--border); border-radius: 8px; resize: vertical;
}
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--blue); }
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; }
.form-status { font-size: 13px; margin: 0; min-height: 18px; }
.form-status.ok { color: #1b7a3d; }
.form-status.err { color: #b3261e; }

/* Compare bar + modal */
.compare-bar {
  position: fixed; left: 50%; bottom: 20px; transform: translate(-50%, 120%);
  background: #fff; border: 1px solid var(--border); border-radius: 999px; box-shadow: 0 12px 32px rgba(12,24,48,.18);
  padding: 12px 12px 12px 22px; display: flex; align-items: center; gap: 16px; font-size: 14px; font-weight: 600;
  transition: transform .25s ease; z-index: 50;
}
.compare-bar.visible { transform: translate(-50%, 0); }
.compare-modal { position: fixed; inset: 0; background: rgba(12,24,48,.6); display: none; align-items: center; justify-content: center; z-index: 60; padding: 24px; }
.compare-modal.open { display: flex; }
.compare-modal-inner { background: #fff; border-radius: var(--radius); padding: 32px; max-width: 900px; width: 100%; max-height: 82vh; overflow: auto; position: relative; }
.compare-close { position: absolute; top: 16px; right: 20px; background: none; border: none; font-size: 26px; cursor: pointer; color: #4a5568; }
.compare-table-wrap { overflow-x: auto; }
.compare-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.compare-table th, .compare-table td { padding: 10px 14px; border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap; }
.compare-table th { font-family: 'PT Serif', serif; font-size: 15px; }
.compare-table img { width: 70px; height: auto; display: block; }

/* Footer */
.site-footer { background: #08132a; color: rgba(255,255,255,.7); padding: 56px 0 0; font-size: 13.5px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr; gap: 32px; padding-bottom: 40px; }
.footer-col h4 { color: #fff; font-family: 'Montserrat'; font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; margin: 0 0 14px; }
.footer-col a { display: block; color: rgba(255,255,255,.7); padding: 4px 0; }
.footer-col a:hover { color: #9ec1ff; }
.footer-brand { font-family: 'PT Serif', serif; font-size: 20px; color: #fff; margin-bottom: 10px; }
.footer-col-brand p { margin: 0 0 10px; line-height: 1.6; }
.footer-owner { color: rgba(255,255,255,.9); font-weight: 600; }
.footer-col-brand address { font-style: normal; margin: 0 0 10px; line-height: 1.6; }
.footer-phone { display: inline-block; font-weight: 700; font-size: 16px; color: #fff !important; margin-bottom: 12px; }
.footer-hours { line-height: 1.6; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 18px 0; font-size: 12.5px; color: rgba(255,255,255,.5); }
.footer-bottom p { margin: 0; }

@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-col-brand { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* Breadcrumb */
.breadcrumb { font-size: 13px; color: #4a5568; margin: 0 0 10px; }
.breadcrumb a { color: var(--blue); font-weight: 600; }

/* Category hero */
.cat-hero { background: var(--paper-tint); padding: 48px 24px 40px; }
.cat-hero h1 { font-size: clamp(28px, 3.4vw, 40px); margin: 6px 0 12px; }
.cat-lead { max-width: 640px; color: #4a5568; font-size: 16px; }

/* Card actions */
.img-wrap-link { display: block; }
.card-actions { display: flex; justify-content: space-between; align-items: center; margin-top: auto; padding-top: 10px; border-top: 1px dashed var(--border); }
.card-actions .compare-check { border: none; padding: 0; margin: 0; }
.sys-card h3 a { color: var(--ink); }
.sys-card h3 a:hover { color: var(--blue); }

/* Category about text */
.cat-about { padding: 8px 24px 32px; max-width: 820px; }
.cat-about p { font-size: 14.5px; line-height: 1.7; color: #4a5568; }

/* Model benefits paragraph */
.model-benefits { font-size: 14.5px; line-height: 1.65; color: #4a5568; background: var(--paper-tint); border-radius: 10px; padding: 16px 18px; margin: -6px 0 20px; }

/* Other categories link row */
.other-cats { padding: 0 24px 40px; font-size: 14px; }
.other-cats .link-cta { margin-right: 20px; }

/* Contact CTA band */
.contact-cta { background: var(--paper-tint); padding: 48px 0; }
.contact-cta-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; }
.contact-cta-inner h2 { font-size: 22px; margin-bottom: 6px; }
.contact-cta-inner p { margin: 0; color: #4a5568; }
.btn-lg { padding: 16px 32px; font-size: 16px; }

/* Landing categories grid */
.categories { padding: 20px 24px 80px; }
.categories h2 { font-size: 28px; margin-bottom: 24px; }
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cat-card { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: #fff; transition: box-shadow .2s ease, transform .2s ease; display: block; }
.cat-card:hover { box-shadow: 0 14px 32px rgba(12,24,48,.12); transform: translateY(-3px); }
.cat-card-img { height: 200px; background: var(--paper-tint); display: flex; align-items: center; justify-content: center; padding: 20px; }
.cat-card-img img { max-width: 100%; max-height: 100%; object-fit: contain; }
.cat-card-body { padding: 20px 22px 24px; }
.cat-card-body h3 { font-size: 19px; margin-bottom: 4px; }
.cat-card-body p { font-size: 13.5px; color: #64748b; margin: 0 0 10px; }

/* Model detail page */
.model-page { padding: 32px 24px 60px; }
.model-hero { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; margin-bottom: 56px; }
.model-img { background: var(--paper-tint); border-radius: var(--radius); padding: 40px; display: flex; align-items: center; justify-content: center; }
.model-img img { max-width: 100%; height: auto; }
.model-info h1 { font-size: 34px; margin: 10px 0 14px; }
.model-lead { color: #4a5568; font-size: 15.5px; margin-bottom: 20px; }
.spec-table { width: 100%; border-collapse: collapse; margin-bottom: 26px; }
.spec-table td { padding: 11px 4px; border-bottom: 1px solid var(--border); font-size: 14px; }
.spec-table td:first-child { color: #64748b; width: 60%; }
.model-ctas { display: flex; gap: 14px; flex-wrap: wrap; }
.related-section h2 { font-size: 20px; margin-bottom: 18px; }
.related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(180px, 100%), 1fr)); gap: 16px; margin-bottom: 20px; }
.related-card { display: block; border: 1px solid var(--border); border-radius: 10px; padding: 14px; text-align: center; transition: box-shadow .15s ease; }
.related-card:hover { box-shadow: 0 8px 20px rgba(12,24,48,.1); }
.related-card img { max-width: 100%; height: 80px; object-fit: contain; margin-bottom: 8px; }
.related-card span { font-size: 13px; font-weight: 600; display: block; }

/* Language switcher */
.lang-switcher { display: flex; gap: 2px; background: var(--paper-tint); border-radius: 999px; padding: 3px; }
.lang-switcher a { padding: 5px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; color: #4a5568; }
.lang-switcher a.active { background: var(--blue); color: #fff; }
.mobile-lang-switcher { margin: 10px 0; }
.mobile-lang-switcher .lang-switcher { display: inline-flex; }
.mobile-lang-switcher .lang-switcher a { padding: 10px 16px; font-size: 13px; }

/* Accessibility: skip link */
.skip-link {
  position: absolute; top: -100px; left: 12px; z-index: 100;
  background: var(--blue); color: #fff; padding: 12px 20px; border-radius: 8px;
  font-weight: 700; font-size: 14px; transition: top .15s ease;
}
.skip-link:focus { top: 12px; }

/* Mega menu - spans the full viewport width, anchored to the sticky header
   (which establishes the positioning context) rather than the narrow nav item. */
.nav-item.has-mega { /* intentionally not position:relative - lets .mega-panel anchor to .site-header instead */ }
.nav-trigger {
  display: inline-flex; align-items: center; gap: 6px; background: none; border: none; cursor: pointer;
  font-family: 'Montserrat'; font-size: 14px; font-weight: 600; color: var(--ink); padding: 0;
}
.nav-trigger:hover, .nav-trigger[aria-expanded="true"] { color: var(--blue); }
.nav-trigger svg { transition: transform .15s ease; }
.nav-trigger[aria-expanded="true"] svg { transform: rotate(180deg); }
.mega-panel {
  position: absolute; top: 100%; left: 0; right: 0; width: 100%;
  background: #fff; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  box-shadow: 0 24px 48px rgba(12,24,48,.14); padding: 36px 0;
  opacity: 0; visibility: hidden; translate: 0 8px; transition: opacity .18s ease, translate .18s ease, visibility .18s;
  z-index: 50;
}
.nav-item.has-mega:hover .mega-panel,
.mega-panel.open { opacity: 1; visibility: visible; translate: 0 0; }
.mega-grid { max-width: 1180px; margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.mega-col h4 { font-size: 14px; margin: 0 0 10px; }
.mega-col h4 a { color: var(--ink); }
.mega-col a { display: block; font-size: 13.5px; color: #4a5568; padding: 5px 0; }
.mega-col a:hover { color: var(--blue); }
.mega-see-all { font-weight: 700; color: var(--blue) !important; margin-top: 6px; }
.mega-promo { background: var(--paper-tint); border-radius: 10px; padding: 16px; }
.mega-promo p { font-size: 13px; color: #4a5568; margin: 0 0 10px; }

/* Mobile menu */
.mobile-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px; width: 40px; height: 40px;
  background: none; border: none; cursor: pointer; padding: 0;
}
.mobile-toggle span { display: block; width: 100%; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .2s ease, opacity .2s ease; }
.mobile-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.mobile-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  position: fixed; inset: 0; top: var(--header-h, 65px); background: #fff; z-index: 70;
  transform: translateX(100%); transition: transform .25s ease; overflow-y: auto;
}
.mobile-menu.open { transform: translateX(0); }
.mobile-menu-inner { display: flex; flex-direction: column; gap: 4px; padding: 24px; }
.mobile-link { padding: 14px 4px; font-size: 16px; font-weight: 600; border-bottom: 1px solid var(--border); }
.mobile-accordion-trigger {
  width: 100%; display: flex; justify-content: space-between; align-items: center;
  background: none; border: none; padding: 14px 4px; border-bottom: 1px solid var(--border);
  font-family: 'Montserrat'; font-size: 16px; font-weight: 600; color: var(--ink); cursor: pointer;
}
.mobile-accordion-trigger svg { transition: transform .2s ease; }
.mobile-accordion-trigger[aria-expanded="true"] svg { transform: rotate(180deg); }
.mobile-accordion-panel { display: none; flex-direction: column; padding-left: 14px; }
.mobile-accordion-panel.open { display: flex; }
.mobile-accordion-panel a { padding: 12px 4px; font-size: 14.5px; color: #4a5568; }
.mobile-menu .btn { margin-top: 16px; }

/* Building CTA band */
.building-cta { background: var(--blue); color: #fff; padding: 48px 0; text-align: center; }
.building-cta-inner { max-width: 640px; margin: 0 auto; }
.building-cta h2 { color: #fff; font-size: 26px; }
.building-cta p { color: rgba(255,255,255,.9); margin-bottom: 22px; }
.building-cta .btn-primary { background: #fff; color: var(--blue); }
.building-cta .btn-primary:hover { background: #eef4ff; }

/* Material guide section */
.material-guide { padding: 64px 0 20px; }
.material-guide-head { max-width: 720px; margin: 0 auto 40px; text-align: center; }
.material-guide-head h2 { font-size: 28px; }
.material-guide-head p { color: #4a5568; font-size: 15.5px; }
.material-row { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; margin-bottom: 56px; }
.material-row.reverse .material-media { order: 2; }
.material-row.reverse .material-text { order: 1; }
.material-media img { width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--radius); display: block; }
.material-tag { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .04em; color: var(--blue); background: #eaf1ff; padding: 4px 10px; border-radius: 999px; margin-bottom: 12px; }
.material-text h3 { font-size: 22px; margin-bottom: 12px; }
.material-text p { color: #4a5568; font-size: 15px; line-height: 1.65; margin-bottom: 14px; }

/* Window-opening scroll animation */
.window-anim-track { height: 260vh; position: relative; }
.window-anim-sticky { position: sticky; top: 0; height: 100vh; display: flex; align-items: center; justify-content: center; overflow: hidden; background: var(--paper-tint); }
.window-anim-inner { max-width: 1180px; width: 100%; padding: 0 24px; position: relative; display: flex; flex-direction: column; align-items: center; }
.window-anim-head { text-align: center; max-width: 520px; margin-bottom: 28px; }
.window-anim-head h2 { font-size: clamp(24px, 3vw, 32px); margin-bottom: 8px; }
.window-anim-head p { color: #4a5568; font-size: 15px; margin: 0; }
.window-anim-stage { position: relative; width: min(360px, 62vw); }
.window-anim-graphic { position: relative; width: 100%; aspect-ratio: 1; perspective: 1400px; }
.window-frame-svg { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.window-sash-group {
  position: absolute; top: 11.5%; left: 11.5%; width: 77%; height: 77%;
  transform-origin: left center; transform: rotateY(0deg); transition: transform .05s linear;
}
.window-sash-svg { width: 100%; height: 100%; display: block; }
.window-anim-callout {
  position: absolute; width: 190px; font-size: 13px; line-height: 1.5; color: var(--ink); background: #fff;
  border: 1px solid var(--border); border-radius: 10px; padding: 10px 14px; box-shadow: 0 10px 24px rgba(12,24,48,.12);
  opacity: 0; transform: translateY(10px); transition: opacity .35s ease, transform .35s ease;
}
.window-anim-callout b { display: block; color: var(--blue); font-size: 12.5px; margin-bottom: 3px; }
.window-anim-callout.visible { opacity: 1; transform: translateY(0); }
.window-anim-callout.top-left { top: 6%; left: -30%; text-align: right; }
.window-anim-callout.bottom-left { bottom: 6%; left: -30%; text-align: right; }
.window-anim-callout.top-right { top: 6%; right: -30%; }
.window-anim-callout.bottom-right { bottom: 6%; right: -30%; }

@media (max-width: 900px) {
  .window-anim-track { height: auto; }
  .window-anim-sticky { position: relative; height: auto; padding: 56px 0; }
  .window-anim-stage { width: 100%; display: flex; flex-direction: column; align-items: center; }
  .window-anim-graphic { width: min(240px, 60vw); margin-bottom: 24px; }
  .window-anim-callout { position: static; width: 100%; max-width: 320px; opacity: 1; transform: none; text-align: left !important; margin: 0 auto 10px; }
  .window-sash-group { transform: rotateY(-26deg) !important; }
}

/* Configurator section */
.configurator-section { padding: 64px 0; background: var(--paper-tint); }
.configurator-inner { max-width: 640px; margin: 0 auto; text-align: center; }
.configurator-inner h2 { font-size: clamp(24px, 3vw, 32px); margin-bottom: 10px; }
.configurator-inner p { color: #4a5568; font-size: 15px; margin: 0 0 24px; }
.configurator-note { font-size: 12.5px; color: #94a3b8; margin: 16px 0 0; }

/* Montaz section */
.montaz-section { background: var(--paper-tint); padding: 64px 0; }
.montaz-head { max-width: 720px; margin: 0 auto 36px; text-align: center; }
.montaz-head h2 { font-size: 28px; }
.montaz-lead { color: #4a5568; font-size: 15.5px; }
.montaz-options { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 32px; }
.montaz-option { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; position: relative; }
.montaz-option.featured { border-color: var(--blue); box-shadow: 0 10px 28px rgba(12,70,178,.12); }
.montaz-badge { position: absolute; top: -12px; left: 24px; background: var(--blue); color: #fff; font-size: 11px; font-weight: 700; padding: 4px 12px; border-radius: 999px; text-transform: uppercase; letter-spacing: .03em; }
.montaz-option h3 { font-size: 19px; margin-bottom: 8px; }
.montaz-option p { font-size: 14px; color: #4a5568; margin: 0; }
.montaz-trust { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 24px; margin-bottom: 40px; }
.trust-item-alt { font-size: 14px; font-weight: 600; color: var(--ink); }
.germany-note { background: #fff; border: 1px dashed var(--border); border-radius: 10px; padding: 14px 18px; font-size: 13.5px; color: #4a5568; margin-bottom: 32px; }
.realizacje-title { font-size: 20px; margin-bottom: 18px; }
.gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.gallery-item { border-radius: 10px; overflow: hidden; aspect-ratio: 3/4; background: #e2e8f0; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .3s ease; }
.gallery-item:hover img { transform: scale(1.05); }

/* 404 */
.not-found { padding: 100px 24px; text-align: center; max-width: 560px; }
.eyebrow-404 { font-family: 'PT Serif', serif; font-size: 72px; font-weight: 700; color: var(--blue); margin: 0; line-height: 1; }
.not-found h1 { margin: 12px 0 14px; }
.not-found .hero-ctas { justify-content: center; margin-top: 28px; }
.not-found .btn-outline-dark { border: 2px solid var(--border); }

/* Blog */
/* Blog hero (photo banner, shared by index + post pages) */
.blog-hero { position: relative; min-height: 340px; display: flex; align-items: flex-end; overflow: hidden; }
.blog-hero .hero-media { position: absolute; inset: 0; }
.blog-hero .hero-media img { width: 100%; height: 100%; object-fit: cover; }
.blog-hero .hero-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(8,19,42,.35) 0%, rgba(8,19,42,.88) 100%); }
.blog-hero-content { position: relative; color: #fff; padding: 56px 24px 40px; max-width: 860px; }
.blog-hero-content .breadcrumb, .blog-hero-content .breadcrumb a { color: rgba(255,255,255,.75); }
.blog-hero-content .breadcrumb a:hover { color: #fff; }
.blog-hero-content h1 { color: #fff; font-size: clamp(26px, 3.6vw, 42px); margin: 8px 0 12px; }
.blog-hero-content .cat-lead { color: rgba(255,255,255,.85); font-size: 16px; margin: 0; }
.blog-post-hero { min-height: 300px; }
.blog-post-meta { position: relative; color: rgba(255,255,255,.75); font-size: 13.5px; margin: 0; }

.blog-list { padding: 48px 24px 80px; }
.blog-eyebrow { letter-spacing: .12em; text-transform: uppercase; font-size: 12.5px; font-weight: 700; color: var(--blue); margin: 0 0 12px; }
.blog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr)); gap: 28px; }
.blog-card { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: box-shadow .2s ease, transform .2s ease; }
.blog-card:hover { box-shadow: 0 16px 34px rgba(12,24,48,.12); transform: translateY(-3px); }
.blog-card-img { aspect-ratio: 16/10; overflow: hidden; background: var(--paper-tint); }
.blog-card-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .3s ease; }
.blog-card:hover .blog-card-img img { transform: scale(1.05); }
.blog-card-body { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.blog-card-date { font-size: 12.5px; font-weight: 700; color: var(--blue); margin-bottom: 8px; }
.blog-card h3 { font-size: 17.5px; line-height: 1.35; margin: 0 0 10px; color: var(--ink); }
.blog-card p { font-size: 14px; color: #4a5568; margin: 0 0 14px; flex: 1; }
.blog-post { max-width: 760px; padding: 40px 24px 80px; }
.blog-body { font-size: 16px; line-height: 1.75; color: #333c47; }
.blog-body h2 { font-size: 21px; margin: 32px 0 12px; }
.blog-body p { margin: 0 0 16px; }
.blog-body ul { margin: 0 0 16px; padding-left: 22px; }
.blog-body li { margin-bottom: 8px; }
.blog-body a { color: var(--blue); font-weight: 600; }
.blog-cta { background: var(--paper-tint); border-radius: var(--radius); padding: 24px; display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; margin: 40px 0; }
.blog-cta p { margin: 0; font-size: 15px; }
.blog-post .related-section { margin-top: 20px; }

/* Callback widget */
.callback-widget { position: fixed; left: 24px; bottom: 24px; z-index: 55; }
.callback-bubble {
  display: flex; align-items: center; gap: 10px; background: var(--blue); color: #fff; border: none;
  border-radius: 999px; padding: 14px 20px 14px 16px; box-shadow: 0 10px 26px rgba(12,70,178,.32);
  cursor: pointer; font-family: 'Montserrat'; font-weight: 700; font-size: 14px;
  animation: callback-pulse 2.4s ease-in-out infinite;
}
.callback-bubble:hover { animation: none; transform: translateY(-1px); }
.callback-bubble-icon { font-size: 18px; }
@keyframes callback-pulse { 0%, 100% { box-shadow: 0 10px 26px rgba(12,70,178,.32); } 50% { box-shadow: 0 10px 30px rgba(12,70,178,.5); } }
.callback-panel {
  position: absolute; left: 0; bottom: calc(100% + 14px); width: 280px;
  background: #fff; border-radius: var(--radius); box-shadow: 0 20px 44px rgba(12,24,48,.22); padding: 22px;
  opacity: 0; visibility: hidden; translate: 0 8px; transition: opacity .18s ease, translate .18s ease, visibility .18s;
}
.callback-panel.open { opacity: 1; visibility: visible; translate: 0 0; }
.callback-panel h4 { font-family: 'PT Serif', serif; font-size: 17px; margin: 0 0 6px; }
.callback-panel p { font-size: 13px; color: #4a5568; margin: 0 0 14px; }
.callback-panel form { display: flex; flex-direction: column; gap: 10px; }
.callback-panel input[type="text"], .callback-panel input[type="tel"] {
  font-family: 'Montserrat'; font-size: 16px; padding: 10px 12px; border: 1.5px solid var(--border); border-radius: 8px;
}
.callback-panel input:focus { outline: none; border-color: var(--blue); }
.callback-close { position: absolute; top: 10px; right: 12px; background: none; border: none; font-size: 20px; color: #64748b; cursor: pointer; }

@media (max-width: 640px) {
  .callback-widget { left: 16px; bottom: 16px; }
  .callback-bubble-text { display: none; }
  .callback-bubble { padding: 14px; }
  .callback-panel { width: calc(100vw - 32px); }
}

@media (max-width: 400px) {
  .logo { font-size: 17px; }
  .header-inner { gap: 6px; }
  .header-inner .btn-phone { padding: 8px 10px; font-size: 12px; }
}

/* Service area */
.area-section { padding: 20px 0 56px; text-align: center; }
.area-section h2 { font-size: 26px; margin-bottom: 10px; }
.area-lead { max-width: 620px; margin: 0 auto 24px; color: #4a5568; font-size: 15px; }
.area-chips { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 20px; }
.area-chip {
  display: inline-block; padding: 8px 18px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--paper-tint); font-size: 14px; font-weight: 600; color: var(--ink);
}
.area-chip-hq { background: var(--blue); border-color: var(--blue); color: #fff; }
.area-germany { font-size: 13.5px; color: #64748b; margin: 0; }

/* FAQ */
.faq-section { padding: 64px 24px 20px; max-width: 820px; }
.faq-section h2 { font-size: 28px; margin-bottom: 24px; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-q {
  width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 16px;
  background: none; border: none; padding: 18px 4px; text-align: left; cursor: pointer;
  font-family: 'Montserrat'; font-size: 15.5px; font-weight: 600; color: var(--ink);
}
.faq-q svg { flex-shrink: 0; transition: transform .2s ease; color: #64748b; }
.faq-q[aria-expanded="true"] svg { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .25s ease; }
.faq-a p { padding: 0 4px 18px; margin: 0; color: #4a5568; font-size: 14.5px; }

@media (max-width: 860px) {
  .cat-grid { grid-template-columns: 1fr; }
  .model-hero { grid-template-columns: 1fr; }
  .main-nav { display: none; }
  .mobile-toggle { display: flex; }
  .header-inner > .lang-switcher { display: none; }
  .header-inner { gap: 8px; }
  .logo { font-size: 19px; }
  .header-inner .btn-phone { padding: 9px 14px; font-size: 13px; gap: 6px; }
  .header-inner .btn-phone-icon { font-size: 13px; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-inner { grid-template-columns: 1fr; }
  .montaz-options { grid-template-columns: 1fr; }
  .montaz-trust { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr; }
  .gallery-item { aspect-ratio: 4/3; }
  .material-row, .material-row.reverse { grid-template-columns: 1fr; gap: 20px; }
  .material-row.reverse .material-media { order: 1; }
  .material-row.reverse .material-text { order: 2; }
  .hero { min-height: 0; }
  .hero-content { padding: 56px 24px 48px; }
  .hero-lead { margin: 14px 0 24px; }
  .trust-strip { padding: 22px 0; }
  .intro, .catalog, .other-materials, .categories, .cat-about, .other-cats { padding-top: 40px; }
  .material-guide, .montaz-section, .configurator-section, .building-cta, .contact-cta, .faq-section { padding-top: 40px; padding-bottom: 40px; }
  .contact-section { padding: 48px 0; }
  .compare-bar { bottom: 78px; max-width: calc(100vw - 24px); font-size: 13px; padding: 10px 10px 10px 16px; gap: 10px; }
  .compare-bar span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .link-cta { display: inline-block; padding: 8px 0; }
}