/* =============================================================
   MACTECH ENGINEERS — CORE STYLESHEET
   Design tokens: bold blue + slate grey, blueprint/engineering motif
   ============================================================= */

:root{
  /* --- Palette --- */
  --navy:        #081C3A;   /* deepest ink — hero bg, footer */
  --navy-2:      #0E2A52;   /* secondary navy panel */
  --blue:        #0B5FFF;   /* bold primary blue — CTAs, links */
  --blue-dark:   #0044CC;
  --blue-light:  #E7EFFF;
  --slate-900:   #1B2431;   /* body headings */
  --slate-700:   #3E4A5C;   /* body copy */
  --slate-500:   #6B7686;   /* secondary copy */
  --slate-300:   #C4CCD6;   /* borders */
  --slate-100:   #EEF1F5;   /* section backgrounds */
  --white:       #FFFFFF;
  --amber:       #E9A116;   /* spec-sheet highlight accent, used sparingly */
  --green:       #157F4B;   /* in-stock / success */

  /* --- Type --- */
  --font-display: 'Archivo', 'Arial Narrow', sans-serif;
  --font-body:    'Inter', -apple-system, Segoe UI, sans-serif;
  --font-mono:    'IBM Plex Mono', 'Courier New', monospace;

  --radius: 3px;
  --shadow-card: 0 1px 2px rgba(8,28,58,.06), 0 8px 24px rgba(8,28,58,.06);
  --shadow-pop:  0 20px 60px rgba(8,28,58,.35);
  --maxw: 1240px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--slate-700);
  background:var(--white);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:var(--font-display);
  color:var(--slate-900);
  line-height:1.12;
  margin:0 0 .5em;
  font-weight:800;
  letter-spacing:-.01em;
}
p{ margin:0 0 1em; }
a{ color:var(--blue); text-decoration:none; }
img{ max-width:100%; display:block; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family:inherit; cursor:pointer; }
:focus-visible{ outline:3px solid var(--amber); outline-offset:2px; }

.container{ max-width:var(--maxw); margin:0 auto; padding:0 24px; }
.eyebrow{
  font-family:var(--font-mono);
  text-transform:uppercase;
  letter-spacing:.14em;
  font-size:.72rem;
  color:var(--blue);
  font-weight:700;
  display:flex; align-items:center; gap:8px;
  margin-bottom:.75em;
}
.eyebrow::before{ content:""; width:24px; height:2px; background:var(--blue); display:inline-block; }

/* =================== BUTTONS =================== */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family:var(--font-display);
  font-weight:700; font-size:.95rem; letter-spacing:.01em;
  padding:14px 26px;
  border-radius:var(--radius);
  border:2px solid transparent;
  cursor:pointer;
  transition:transform .12s ease, box-shadow .12s ease, background .15s ease, color .15s ease;
  white-space:nowrap;
}
.btn:active{ transform:translateY(1px); }
.btn-primary{ background:var(--blue); color:var(--white); }
.btn-primary:hover{ background:var(--blue-dark); box-shadow:0 6px 20px rgba(11,95,255,.35); }
.btn-outline{ background:transparent; border-color:var(--white); color:var(--white); }
.btn-outline:hover{ background:var(--white); color:var(--navy); }
.btn-dark{ background:var(--navy); color:var(--white); }
.btn-dark:hover{ background:var(--navy-2); }
.btn-ghost{ background:var(--slate-100); color:var(--slate-900); }
.btn-ghost:hover{ background:var(--slate-300); }
.btn-sm{ padding:9px 16px; font-size:.82rem; }
.btn-block{ width:100%; }
.btn[disabled]{ opacity:.55; cursor:not-allowed; }

/* =================== HEADER / NAV =================== */
.site-header{
  position:sticky; top:0; z-index:500;
  background:var(--white);
  border-bottom:1px solid var(--slate-300);
}
.topbar{
  background:var(--navy);
  color:#AFC3E6;
  font-family:var(--font-mono);
  font-size:.76rem;
}
.topbar .container{ display:flex; justify-content:space-between; align-items:center; padding:8px 24px; gap:16px; flex-wrap:wrap; }
.topbar a{ color:#AFC3E6; }
.topbar .topbar-right{ display:flex; gap:20px; }
.navbar{ display:flex; align-items:center; justify-content:space-between; padding:14px 24px; gap:24px; }
.brand{ display:flex; align-items:center; gap:10px; font-family:var(--font-display); font-weight:800; font-size:1.25rem; color:var(--slate-900); }
.brand .mark{
  width:38px; height:38px; border-radius:6px;
  background:linear-gradient(135deg, var(--blue), var(--navy));
  display:flex; align-items:center; justify-content:center;
  color:#fff; font-size:1rem; font-weight:800;
}
.brand small{ display:block; font-family:var(--font-mono); font-weight:500; font-size:.62rem; color:var(--slate-500); letter-spacing:.08em; }

.main-nav{ display:flex; align-items:center; gap:2px; }
.main-nav > li{ position:relative; }
.main-nav > li > a, .main-nav > li > button.nav-toggle{
  display:flex; align-items:center; gap:6px;
  padding:12px 14px; font-weight:600; font-size:.92rem;
  color:var(--slate-700); background:none; border:none;
}
.main-nav > li > a:hover, .main-nav > li > button.nav-toggle:hover{ color:var(--blue); }
.caret{ font-size:.6rem; transform:translateY(1px); }

.dropdown{
  position:absolute; top:100%; left:0;
  background:var(--white); border:1px solid var(--slate-300); border-radius:var(--radius);
  box-shadow:var(--shadow-card);
  min-width:260px; padding:8px; display:none; z-index:50;
}
.main-nav > li:hover .dropdown, .main-nav > li.open .dropdown{ display:block; }
.dropdown a{ display:block; padding:10px 12px; border-radius:var(--radius); color:var(--slate-700); font-size:.9rem; font-weight:500; }
.dropdown a:hover{ background:var(--blue-light); color:var(--blue-dark); }

.nav-actions{ display:flex; align-items:center; gap:12px; }
.hamburger{ display:none; background:none; border:none; padding:8px; }
.hamburger span{ display:block; width:24px; height:2px; background:var(--slate-900); margin:5px 0; }

/* =================== HERO =================== */
.hero{
  position:relative;
  background:
    radial-gradient(circle at 85% 20%, rgba(11,95,255,.35), transparent 45%),
    linear-gradient(180deg, var(--navy) 0%, #061530 100%);
  color:#fff;
  overflow:hidden;
  padding:96px 0 70px;
}
.hero::before{ /* blueprint grid */
  content:"";
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size:42px 42px;
  mask-image:linear-gradient(180deg, rgba(0,0,0,.9), transparent 85%);
  pointer-events:none;
}
.hero-grid{ position:relative; display:grid; grid-template-columns:1.1fr .9fr; gap:56px; align-items:center; }
.hero-badge-row{ display:flex; align-items:center; gap:14px; margin-bottom:20px; flex-wrap:wrap; }
.badge-pill{
  display:inline-flex; align-items:center; gap:8px;
  background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.18);
  padding:6px 14px; border-radius:99px; font-size:.78rem; font-family:var(--font-mono);
}
.hero h1{ color:#fff; font-size:clamp(2.1rem, 4vw, 3.4rem); max-width:16ch; }
.hero h1 .accent{ color:#5B9BFF; }
.hero p.lead{ color:#C8D4E8; font-size:1.08rem; max-width:52ch; margin-bottom:28px; }
.hero-cta{ display:flex; gap:14px; flex-wrap:wrap; margin-bottom:34px; }
.hero-stats{ display:flex; gap:34px; flex-wrap:wrap; border-top:1px solid rgba(255,255,255,.15); padding-top:24px; }
.hero-stats div b{ display:block; font-family:var(--font-display); font-size:1.6rem; color:#fff; }
.hero-stats div span{ font-size:.78rem; color:#9FB2CE; font-family:var(--font-mono); }

.hero-panel{
  position:relative;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.14);
  border-radius:8px;
  padding:22px;
  backdrop-filter:blur(6px);
}
.hero-panel .spec-line{ display:flex; justify-content:space-between; font-family:var(--font-mono); font-size:.82rem; padding:9px 4px; border-bottom:1px dashed rgba(255,255,255,.14); color:#C8D4E8; }
.hero-panel .spec-line b{ color:#fff; }
.hero-panel img{ border-radius:6px; margin-bottom:14px; }

/* logo strip */
.logo-strip{ background:var(--slate-100); padding:22px 0; overflow:hidden; border-bottom:1px solid var(--slate-300); }
.logo-track{ display:flex; align-items:center; gap:56px; width:max-content; animation:scroll 32s linear infinite; }
.logo-track img{ height:26px; width:auto; filter:grayscale(1) opacity(.7); }
@keyframes scroll{ from{ transform:translateX(0);} to{ transform:translateX(-50%);} }
@media (prefers-reduced-motion: reduce){ .logo-track{ animation:none; flex-wrap:wrap; } }

/* =================== SECTIONS =================== */
.section{ padding:76px 0; }
.section-slate{ background:var(--slate-100); }
.section-navy{ background:var(--navy); color:#DCE5F5; }
.section-navy h2{ color:#fff; }
.section-head{ max-width:640px; margin-bottom:44px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.section-head h2{ font-size:clamp(1.7rem,3vw,2.3rem); }

/* card grids */
.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:26px; }
.grid-4{ display:grid; grid-template-columns:repeat(4,1fr); gap:22px; }
.grid-2{ display:grid; grid-template-columns:repeat(2,1fr); gap:26px; }

.card{
  background:#fff; border:1px solid var(--slate-300); border-radius:6px;
  padding:26px; transition:box-shadow .18s ease, transform .18s ease, border-color .18s ease;
}
.card:hover{ box-shadow:var(--shadow-card); border-color:var(--blue); transform:translateY(-3px); }
.card .num{ font-family:var(--font-mono); color:var(--blue); font-weight:700; font-size:.82rem; }
.card h3{ font-size:1.1rem; margin:.4em 0 .4em; }
.card p{ font-size:.92rem; color:var(--slate-500); margin:0; }

.category-card{
  position:relative; border-radius:8px; overflow:hidden; height:230px;
  display:flex; align-items:flex-end; background:var(--navy);
}
.category-card img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; opacity:.55; transition:transform .3s ease, opacity .3s ease; }
.category-card:hover img{ transform:scale(1.06); opacity:.4; }
.category-card::after{ content:""; position:absolute; inset:0; background:linear-gradient(0deg, rgba(6,15,32,.92), transparent 65%); }
.category-card .cc-body{ position:relative; padding:20px; color:#fff; z-index:2; width:100%; }
.category-card .cc-body span{ font-family:var(--font-mono); font-size:.7rem; color:#8FB3FF; letter-spacing:.08em; text-transform:uppercase; }
.category-card .cc-body h3{ color:#fff; margin:.25em 0 0; font-size:1.15rem; }

/* Industry tiles */
.industry-tile{ border-left:3px solid var(--blue); padding:18px 22px; background:#fff; border-top:1px solid var(--slate-300); border-right:1px solid var(--slate-300); border-bottom:1px solid var(--slate-300); border-radius:0 6px 6px 0; }
.industry-tile h3{ font-size:1.02rem; margin-bottom:.35em; }
.industry-tile p{ font-size:.88rem; color:var(--slate-500); margin:0; }

/* Testimonials */
.testimonial{ background:#fff; border:1px solid var(--slate-300); border-radius:6px; padding:24px; font-size:.94rem; }
.testimonial p{ color:var(--slate-700); }
.testimonial .who{ display:flex; align-items:center; gap:10px; margin-top:14px; }
.testimonial .avatar{ width:36px; height:36px; border-radius:50%; background:var(--blue); color:#fff; display:flex; align-items:center; justify-content:center; font-weight:700; font-family:var(--font-display); }
.testimonial .who b{ display:block; font-size:.88rem; color:var(--slate-900); }
.testimonial .who span{ font-size:.78rem; color:var(--slate-500); }

/* FAQ */
.faq-item{ border-bottom:1px solid var(--slate-300); }
.faq-item summary{ cursor:pointer; padding:18px 0; font-weight:700; color:var(--slate-900); font-family:var(--font-display); display:flex; justify-content:space-between; align-items:center; list-style:none; }
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-item summary::after{ content:"+"; font-size:1.4rem; color:var(--blue); }
.faq-item[open] summary::after{ content:"–"; }
.faq-item .faq-a{ padding:0 0 20px; color:var(--slate-500); font-size:.94rem; }

/* =================== PRODUCT CATALOG =================== */
.catalog-toolbar{
  display:flex; gap:18px; align-items:flex-end; flex-wrap:wrap;
  background:#fff; border:1px solid var(--slate-300); border-radius:6px;
  padding:20px; margin-bottom:28px; position:sticky; top:64px; z-index:40;
}
.field{ display:flex; flex-direction:column; gap:6px; font-size:.8rem; font-weight:700; color:var(--slate-900); font-family:var(--font-mono); text-transform:uppercase; letter-spacing:.04em; }
.field input, .field select, .field textarea{
  font-family:var(--font-body); font-size:.92rem; padding:10px 12px;
  border:1px solid var(--slate-300); border-radius:4px; background:#fff; color:var(--slate-900);
  min-width:170px;
}
.field input:focus, .field select:focus, .field textarea:focus{ border-color:var(--blue); }
.search-field{ flex:1; min-width:220px; }
.search-field input{ width:100%; }
.result-count{ font-family:var(--font-mono); font-size:.82rem; color:var(--slate-500); margin-bottom:16px; }

.product-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.product-card{
  background:#fff; border:1px solid var(--slate-300); border-radius:6px; overflow:hidden;
  display:flex; flex-direction:column; cursor:pointer;
  transition:box-shadow .18s ease, border-color .18s ease, transform .18s ease;
}
.product-card:hover{ box-shadow:var(--shadow-card); border-color:var(--blue); transform:translateY(-3px); }
.product-card .thumb{ height:190px; background:var(--slate-100); position:relative; overflow:hidden; }
.product-card .thumb img{ width:100%; height:100%; object-fit:cover; }
.product-card .stock-tag{ position:absolute; top:10px; left:10px; font-family:var(--font-mono); font-size:.66rem; font-weight:700; text-transform:uppercase; padding:4px 8px; border-radius:3px; background:#fff; color:var(--green); border:1px solid var(--green); }
.product-card .stock-tag.low{ color:#B4530C; border-color:#B4530C; }
.product-card .body{ padding:18px; display:flex; flex-direction:column; gap:6px; flex:1; }
.product-card .brand-tag{ font-family:var(--font-mono); font-size:.7rem; color:var(--blue); text-transform:uppercase; letter-spacing:.06em; font-weight:700; }
.product-card h3{ font-size:1.02rem; margin:0; }
.product-card .sku{ font-family:var(--font-mono); font-size:.74rem; color:var(--slate-500); }
.product-card .desc{ font-size:.85rem; color:var(--slate-500); flex:1; }
.product-card .card-foot{ display:flex; justify-content:space-between; align-items:center; margin-top:8px; }
.product-card .price{ font-family:var(--font-display); font-weight:800; color:var(--slate-900); }
.product-card .price small{ display:block; font-family:var(--font-mono); font-weight:400; font-size:.65rem; color:var(--slate-500); }
.no-results{ text-align:center; padding:70px 20px; color:var(--slate-500); font-family:var(--font-mono); grid-column:1/-1; }

/* =================== MODAL =================== */
.modal-overlay{
  position:fixed; inset:0; background:rgba(8,20,42,.62); backdrop-filter:blur(2px);
  display:none; align-items:center; justify-content:center; z-index:1000; padding:24px;
}
.modal-overlay.active{ display:flex; }
.modal{
  background:#fff; width:100%; max-width:960px; max-height:88vh; overflow-y:auto;
  border-radius:8px; box-shadow:var(--shadow-pop); position:relative;
}
.modal-close{
  position:absolute; top:16px; right:16px; z-index:5;
  width:36px; height:36px; border-radius:50%; border:1px solid var(--slate-300);
  background:#fff; font-size:1.1rem; color:var(--slate-700); display:flex; align-items:center; justify-content:center;
}
.modal-close:hover{ background:var(--slate-100); }
.modal-grid{ display:grid; grid-template-columns:.85fr 1.15fr; gap:0; }
.modal-media{ background:var(--slate-100); padding:32px; display:flex; flex-direction:column; align-items:center; justify-content:center; }
.modal-media img{ border-radius:6px; max-height:280px; object-fit:contain; }
.modal-media .stock-tag{ margin-top:16px; align-self:flex-start; position:static; }
.modal-info{ padding:36px 36px 32px; }
.modal-info .brand-tag{ font-family:var(--font-mono); color:var(--blue); font-weight:700; font-size:.76rem; text-transform:uppercase; letter-spacing:.06em; }
.modal-info h2{ font-size:1.5rem; margin:.3em 0 .2em; }
.modal-info .sku-line{ font-family:var(--font-mono); font-size:.8rem; color:var(--slate-500); margin-bottom:18px; }
.modal-info .price-row{ display:flex; align-items:baseline; gap:10px; margin-bottom:20px; }
.modal-info .price-row .price{ font-family:var(--font-display); font-size:1.7rem; font-weight:800; color:var(--slate-900); }
.modal-info .price-row .unit{ font-size:.82rem; color:var(--slate-500); }
.spec-table{ width:100%; border-collapse:collapse; margin:18px 0 22px; font-size:.88rem; }
.spec-table tr{ border-bottom:1px solid var(--slate-300); }
.spec-table td{ padding:9px 4px; }
.spec-table td:first-child{ color:var(--slate-500); font-family:var(--font-mono); font-size:.78rem; width:44%; text-transform:uppercase; letter-spacing:.03em; }
.spec-table td:last-child{ color:var(--slate-900); font-weight:600; }
.modal-actions{ display:flex; gap:12px; flex-wrap:wrap; margin-top:8px; }
.modal-note{ font-size:.78rem; color:var(--slate-500); margin-top:14px; }

/* =================== FORMS (contact / enquiry / quote) =================== */
.form-panel{ background:#fff; border:1px solid var(--slate-300); border-radius:8px; padding:30px; }
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.form-grid .full{ grid-column:1/-1; }
.form-panel label{ display:block; font-size:.8rem; font-weight:700; color:var(--slate-900); margin-bottom:6px; font-family:var(--font-mono); text-transform:uppercase; letter-spacing:.03em; }
.form-panel input, .form-panel select, .form-panel textarea{
  width:100%; padding:12px 14px; border:1px solid var(--slate-300); border-radius:4px; font-size:.94rem; font-family:var(--font-body); background:#fff; color:var(--slate-900);
}
.form-panel input:focus, .form-panel select:focus, .form-panel textarea:focus{ border-color:var(--blue); }
.form-panel textarea{ resize:vertical; min-height:100px; }
.form-msg{ padding:12px 16px; border-radius:4px; font-size:.88rem; margin-bottom:16px; display:none; }
.form-msg.show{ display:block; }
.form-msg.success{ background:#E9F7EF; color:var(--green); border:1px solid #B9E6C9; }
.form-msg.error{ background:#FDECEC; color:#B02A2A; border:1px solid #F3C6C6; }
.required{ color:#C0392B; }

/* Resources */
.resource-card{ display:flex; gap:16px; align-items:flex-start; background:#fff; border:1px solid var(--slate-300); border-radius:6px; padding:20px; }
.resource-icon{ width:46px; height:46px; border-radius:6px; background:var(--blue-light); color:var(--blue); display:flex; align-items:center; justify-content:center; font-family:var(--font-mono); font-weight:800; flex-shrink:0; }
.resource-card h3{ font-size:1rem; margin:0 0 4px; }
.resource-card p{ font-size:.85rem; color:var(--slate-500); margin:0 0 10px; }
.resource-meta{ font-family:var(--font-mono); font-size:.72rem; color:var(--slate-500); }

.case-study{ background:#fff; border:1px solid var(--slate-300); border-radius:8px; overflow:hidden; }
.case-study img{ height:190px; width:100%; object-fit:cover; }
.case-study .cs-body{ padding:22px; }
.case-study .tag{ font-family:var(--font-mono); font-size:.7rem; color:var(--blue); text-transform:uppercase; font-weight:700; letter-spacing:.05em; }
.case-study h3{ font-size:1.08rem; margin:.4em 0; }
.case-study .stat-row{ display:flex; gap:18px; margin-top:14px; border-top:1px solid var(--slate-300); padding-top:14px; }
.case-study .stat-row div b{ display:block; font-family:var(--font-display); color:var(--blue); font-size:1.2rem; }
.case-study .stat-row div span{ font-size:.7rem; color:var(--slate-500); font-family:var(--font-mono); }

/* CTA band */
.cta-band{ background:linear-gradient(120deg, var(--blue), var(--blue-dark)); color:#fff; border-radius:10px; padding:48px; display:flex; justify-content:space-between; align-items:center; gap:24px; flex-wrap:wrap; }
.cta-band h2{ color:#fff; margin-bottom:.2em; font-size:1.7rem; }
.cta-band p{ color:#DCE7FF; margin:0; }

/* Breadcrumb */
.breadcrumb{ font-family:var(--font-mono); font-size:.78rem; color:var(--slate-500); padding:18px 0; }
.breadcrumb a{ color:var(--slate-500); }
.breadcrumb a:hover{ color:var(--blue); }

/* page header (category pages) */
.page-header{ background:var(--navy); color:#fff; padding:46px 0 40px; position:relative; overflow:hidden; }
.page-header::before{ content:""; position:absolute; inset:0; background-image:linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px); background-size:38px 38px; }
.page-header .container{ position:relative; }
.page-header h1{ color:#fff; font-size:clamp(1.7rem,3vw,2.4rem); }
.page-header p{ color:#B9C7E0; max-width:60ch; }

/* Footer */
.site-footer{ background:var(--navy); color:#B9C7E0; padding:60px 0 24px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:36px; margin-bottom:40px; }
.footer-grid h4{ color:#fff; font-size:.85rem; text-transform:uppercase; letter-spacing:.06em; font-family:var(--font-mono); margin-bottom:16px; }
.footer-grid li{ margin-bottom:10px; font-size:.9rem; }
.footer-grid a{ color:#B9C7E0; }
.footer-grid a:hover{ color:#fff; }
.footer-brand p{ color:#8FA2C2; font-size:.88rem; max-width:34ch; }
.footer-bottom{ border-top:1px solid rgba(255,255,255,.12); padding-top:22px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; font-size:.8rem; color:#8FA2C2; }
.social-row{ display:flex; gap:12px; margin-top:14px; }
.social-row a{ width:34px; height:34px; border-radius:50%; border:1px solid rgba(255,255,255,.2); display:flex; align-items:center; justify-content:center; font-size:.8rem; }

/* Sticky enquiry rail (quote button floating) */
.float-quote{
  position:fixed; right:22px; bottom:22px; z-index:300;
}

/* =================== RESPONSIVE =================== */
@media (max-width: 1080px){
  .grid-4{ grid-template-columns:repeat(2,1fr); }
  .product-grid{ grid-template-columns:repeat(2,1fr); }
  .hero-grid{ grid-template-columns:1fr; }
  .hero-panel{ order:-1; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
}
@media (max-width: 860px){
  .main-nav{ position:fixed; top:104px; left:0; right:0; bottom:0; background:#fff; flex-direction:column; align-items:stretch; padding:12px; overflow-y:auto; display:none; }
  .main-nav.open{ display:flex; }
  .main-nav > li > a, .main-nav > li > button.nav-toggle{ width:100%; justify-content:space-between; padding:14px 8px; border-bottom:1px solid var(--slate-100); }
  .dropdown{ position:static; box-shadow:none; border:none; display:none; padding-left:14px; }
  .main-nav > li.open .dropdown{ display:block; }
  .hamburger{ display:block; }
  .grid-3{ grid-template-columns:1fr; }
  .grid-2{ grid-template-columns:1fr; }
  .modal-grid{ grid-template-columns:1fr; }
  .form-grid{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; }
  .topbar .container{ justify-content:center; text-align:center; }
}
@media (max-width: 600px){
  .grid-4{ grid-template-columns:1fr 1fr; }
  .product-grid{ grid-template-columns:1fr; }
  .catalog-toolbar{ position:static; }
  .cta-band{ padding:32px 22px; }
}