@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@500;600&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
  --navy: #0d2130;
  --navy-deep: #071520;
  --ink: #152b38;
  --muted: #556b78;
  --teal: #087e82;
  --teal-dark: #056367;
  --teal-light: #7ad5ce;
  --pale: #eaf4f2;
  --line: #d5e0e3;
  --cream: #f5f7f6;
  --surface: #ffffff;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: 'DM Sans', system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, p { margin-top: 0; }
h1, h2, h3, h4 {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  line-height: 1.14;
  letter-spacing: -0.03em;
  color: var(--navy);
}
h1 { font-size: clamp(2.35rem, 4.4vw, 4.1rem); }
h2 { font-size: clamp(1.75rem, 3vw, 2.55rem); }
h3 { font-size: 1.2rem; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
code, .mono { font-family: var(--mono); font-size: 0.84em; }

.container { width: min(1220px, calc(100% - 40px)); margin: 0 auto; }

/* Topline & Navigation */
.topline {
  background: var(--navy-deep);
  color: #b7cfd3;
  font-size: 0.74rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 9px 0;
  border-bottom: 1px solid #183446;
}
.topline .container { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.topline a { color: var(--teal-light); font-weight: 600; }
.topline a:hover { text-decoration: underline; }

.header {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 30;
}
.nav { min-height: 74px; display: flex; align-items: center; gap: 28px; }
.brand {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.42rem;
  font-weight: 700;
  letter-spacing: -0.05em;
  color: var(--navy);
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
}
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  margin-right: 9px;
  color: #fff;
  background: linear-gradient(135deg, #0b969b, #066367);
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
  font-size: 15px;
}
.navlinks {
  display: flex;
  gap: 24px;
  align-items: center;
  margin-left: auto;
  font-weight: 600;
  font-size: 0.92rem;
}
.navlinks a:not(.btn):hover, .text-link:hover { color: var(--teal); }
.menu { display: none; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border: 1px solid var(--teal);
  background: var(--teal);
  color: #fff;
  font-weight: 700;
  font-size: 0.92rem;
  border-radius: 5px;
  transition: background 0.18s ease, transform 0.18s ease, border-color 0.18s ease;
}
.btn:hover { background: var(--teal-dark); border-color: var(--teal-dark); }
.btn.outline { background: transparent; color: var(--teal); }
.btn.outline:hover { background: var(--pale); }
.btn.sm { padding: 9px 14px; font-size: 0.84rem; }
.btn:disabled { opacity: 0.55; cursor: wait; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--teal);
  font-size: 0.74rem;
  font-weight: 700;
  margin-bottom: 14px;
}

/* Hero */
.hero {
  background:
    radial-gradient(circle at 82% 24%, rgba(12, 146, 150, 0.24), transparent 44%),
    linear-gradient(135deg, #081824 0%, #102738 60%, #0c2130 100%);
  color: #fff;
  border-bottom: 1px solid #1d3c4e;
}
.hero h1 { color: #fff; margin-bottom: 18px; }
.hero .eyebrow { color: var(--teal-light); }
.hero .container {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 44px;
  padding: 68px 0;
  align-items: center;
}
.hero-copy p { max-width: 590px; color: #c4d6db; font-size: 1.08rem; margin-bottom: 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero .btn.outline { border-color: #7eb8b8; color: #fff; }
.hero .btn.outline:hover { background: rgba(122, 213, 206, 0.14); }
.hero-badges {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid rgba(186, 214, 219, 0.18);
}
.hero-badges div strong {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.3rem;
  color: #fff;
}
.hero-badges div span { font-size: 0.8rem; color: #a8c2c9; }

.hero-visual {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(122, 213, 206, 0.28);
  box-shadow: 0 28px 60px rgba(3, 12, 19, 0.55);
  background: #0b1c28;
}
.hero-visual img {
  width: 100%;
  height: 410px;
  object-fit: cover;
  display: block;
}
.hero-caption {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(8, 23, 34, 0.94);
  border-top: 1px solid rgba(122, 213, 206, 0.2);
  font-size: 0.76rem;
  color: #b7d0d5;
  font-family: var(--mono);
}

/* Sections */
.section { padding: 74px 0; }
.section.alt { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section.trust { background: #eaf2f0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 30px;
}
.section-head p { max-width: 540px; color: var(--muted); margin-bottom: 0; }

/* Category Cards */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.category-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.category-card:hover, .product-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 34px rgba(13, 33, 48, 0.09);
  border-color: #9ec4c6;
}
.category-thumb {
  height: 155px;
  position: relative;
  overflow: hidden;
  background: #dce3e5;
}
.category-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.category-count {
  position: absolute;
  top: 11px;
  right: 11px;
  background: rgba(13, 33, 48, 0.86);
  color: #fff;
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 4px 9px;
  border-radius: 4px;
}
.category-card-body { padding: 20px; display: flex; flex-direction: column; flex: 1; }
.category-card h3 { margin: 0 0 8px; font-size: 1.15rem; }
.category-card p { color: var(--muted); font-size: 0.89rem; margin: 0 0 14px; flex: 1; }
.category-link-label { font-size: 0.84rem; font-weight: 700; color: var(--teal); }

/* Catalog Toolbar & Periodic Element Bar */
.products { background: var(--surface); border-top: 1px solid var(--line); }
.toolbar-panel {
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 18px;
  margin-bottom: 24px;
}
.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.filters { display: flex; flex-wrap: wrap; gap: 7px; }
.filter {
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 8px 13px;
  color: var(--ink);
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 4px;
  transition: 0.15s;
}
.filter:hover { border-color: var(--teal); }
.filter.active { background: var(--navy); border-color: var(--navy); color: #fff; }
.search-wrap { display: flex; align-items: center; gap: 10px; flex: 1; justify-content: flex-end; min-width: 260px; }
.search {
  width: min(360px, 100%);
  padding: 10px 13px;
  border: 1px solid #c4d3d7;
  border-radius: 4px;
  background: #fff;
  font-size: 0.9rem;
}
.search:focus { outline: 2px solid #6ec2be; border-color: var(--teal); }

.element-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 13px;
  padding-top: 13px;
  border-top: 1px solid var(--line);
}
.element-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-right: 6px;
}
.el-chip {
  font-family: var(--mono);
  font-size: 0.76rem;
  padding: 4px 9px;
  border: 1px solid #c9d7da;
  background: #fff;
  color: var(--navy);
  border-radius: 3px;
}
.el-chip:hover { border-color: var(--teal); color: var(--teal); }
.el-chip.active { background: var(--teal); border-color: var(--teal); color: #fff; }
.catalog-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.84rem;
  color: var(--muted);
  margin-bottom: 16px;
}
.catalog-meta a { color: var(--teal); font-weight: 700; }

/* Product Grid & Cards */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.product-grid.four {
  grid-template-columns: repeat(4, 1fr);
}
.catalog-more {
  display: flex;
  justify-content: center;
  margin-top: 26px;
}
.product-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.product-image {
  height: 200px;
  background: #e6eceb;
  position: relative;
  overflow: hidden;
}
.product-image img { width: 100%; height: 100%; object-fit: cover; display: block; }
.sku-pill {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(13, 33, 48, 0.85);
  color: #fff;
  font-family: var(--mono);
  font-size: 0.7rem;
  padding: 3px 8px;
  border-radius: 3px;
  letter-spacing: 0.03em;
}
.product-body { padding: 20px; display: flex; flex-direction: column; flex: 1; }
.card-meta-top { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; }
.tag {
  font-size: 0.69rem;
  color: var(--teal);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.chem-pill {
  font-family: var(--mono);
  font-size: 0.71rem;
  color: var(--muted);
  background: var(--cream);
  padding: 2px 7px;
  border-radius: 3px;
  border: 1px solid var(--line);
}
.product-body h3 { margin: 9px 0 8px; font-size: 1.14rem; line-height: 1.25; }
.product-body h3 a:hover { color: var(--teal); }
.product-body p { color: var(--muted); font-size: 0.88rem; margin-bottom: 14px; flex: 1; }
.specrow {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid var(--line);
  padding-top: 10px;
  margin-top: 8px;
  font-size: 0.8rem;
}
.specrow span:first-child { color: var(--muted); white-space: nowrap; }
.specrow b { text-align: right; font-weight: 600; color: var(--navy); }
.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-weight: 700;
  font-size: 0.86rem;
}
.card-footer a:first-child { color: var(--navy); }
.card-footer a:first-child:hover { color: var(--teal); }
.card-footer a:last-child { color: var(--teal); }

/* Process & Trust Cards */
.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.process.three { grid-template-columns: repeat(3, 1fr); }
.process article {
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 3px solid var(--teal);
  border-radius: 5px;
  padding: 22px;
}
.process .num {
  color: var(--teal);
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.process h3 { margin-bottom: 8px; font-size: 1.08rem; }
.process p { color: var(--muted); font-size: 0.89rem; margin: 0; }
.trust-note { margin: 24px 0 0; color: var(--muted); font-size: 0.83rem; }

/* Breadcrumb & Product Detail Page */
.breadcrumb {
  padding: 22px 0 14px;
  color: var(--muted);
  font-size: 0.84rem;
}
.breadcrumb a { color: var(--teal); font-weight: 500; }
.breadcrumb a:hover { text-decoration: underline; }

.detail {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 48px;
  align-items: start;
  padding: 12px 0 64px;
}
.detail-sidebar { position: sticky; top: 94px; display: flex; flex-direction: column; gap: 18px; }
.detail > * { min-width: 0; overflow-wrap: anywhere; }
.id-row > * { min-width: 0; }
.detail-Sidebar-photo {
  border-radius: 7px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--surface);
}
.detail-Sidebar-photo .product-image { height: 340px; }
.id-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 20px;
}
.id-card h3 { font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin-bottom: 12px; }
.id-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.85rem;
}
.id-row:last-of-type { border-bottom: 0; }
.id-row span { color: var(--muted); }
.id-row b { font-family: var(--mono); font-size: 0.82rem; text-align: right; color: var(--navy); }
.quick-rfq-box {
  background: var(--navy);
  color: #fff;
  border-radius: 6px;
  padding: 22px;
}
.quick-rfq-box h3 { color: #fff; margin-bottom: 8px; }
.quick-rfq-box p { color: #bfd2d7; font-size: 0.87rem; margin-bottom: 16px; }
.quick-rfq-box .btn { width: 100%; }

.detail-main {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 34px;
}
.detail-main h1 { font-size: clamp(2rem, 3.4vw, 3rem); margin: 8px 0 14px; }
.detail-lead { font-size: 1.08rem; color: var(--muted); margin-bottom: 22px; }
.synonym-box {
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 10px 14px;
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 24px;
}
.synonym-box strong { color: var(--navy); }

.spec-table { border-top: 1px solid var(--line); margin: 22px 0 30px; }
.spec-table div {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
}
.spec-table b { color: var(--navy); font-weight: 600; }
.spec-table span { color: var(--ink); }

.detail-block { margin-top: 32px; padding-top: 28px; border-top: 1px solid var(--line); }
.detail-block h2 { font-size: 1.42rem; margin-bottom: 14px; }
.detail-block p { color: #2b4250; margin-bottom: 14px; }
.app-list {
  margin: 0;
  padding-left: 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 24px;
  color: #2b4250;
  font-size: 0.92rem;
}
.doc-callout {
  background: var(--pale);
  border-left: 4px solid var(--teal);
  padding: 15px 18px;
  border-radius: 0 5px 5px 0;
  font-size: 0.9rem;
  color: #164449;
  margin-top: 16px;
}

/* Tables (Properties, Category Matrix, Materials Directory) */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; text-align: left; }
.data-table th {
  background: var(--navy);
  color: #fff;
  font-weight: 600;
  padding: 11px 14px;
  white-space: nowrap;
}
.data-table td { padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.data-table tr:last-child td { border-bottom: 0; }
.data-table tbody tr:hover { background: #f3f8f8; }
.data-table a { color: var(--teal); font-weight: 600; }
.data-table a:hover { text-decoration: underline; }

/* FAQ Accordion */
.faq-list { display: flex; flex-direction: column; gap: 10px; }
.faq-item {
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--cream);
  overflow: hidden;
}
.faq-item summary {
  padding: 14px 18px;
  font-weight: 700;
  color: var(--navy);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-family: var(--mono); color: var(--teal); font-size: 1.1rem; }
.faq-item[open] summary::after { content: '−'; }
.faq-item[open] { background: #fff; border-color: #9ec4c6; }
.faq-answer { padding: 0 18px 16px; color: var(--muted); font-size: 0.9rem; }

/* Category Hero */
.cat-hero {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: 20px 0 48px;
}
.cat-hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 36px;
  align-items: center;
}
.cat-hero-img {
  border-radius: 7px;
  overflow: hidden;
  border: 1px solid var(--line);
  height: 260px;
}
.cat-hero-img img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* Quote Page */
.quote-layout {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 32px;
  align-items: start;
  margin-bottom: 80px;
}
.quote-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 34px;
}
.quote-panel h1 { font-size: clamp(2rem, 3.2vw, 2.75rem); margin-bottom: 10px; }
.quote-panel > p { color: var(--muted); margin-bottom: 24px; }
.quote-aside { display: flex; flex-direction: column; gap: 18px; position: sticky; top: 94px; }
.selected-preview {
  background: var(--surface);
  border: 1px solid #9ec4c6;
  border-radius: 6px;
  padding: 18px;
}
.selected-preview h3 { font-size: 1.02rem; margin: 6px 0 8px; }
.selected-preview p { font-size: 0.84rem; color: var(--muted); margin-bottom: 10px; }

.form-section-title {
  grid-column: 1 / -1;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  padding-top: 10px;
  border-top: 1px solid var(--line);
  margin-top: 4px;
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; font-size: 0.84rem; font-weight: 700; color: var(--navy); }
.field.full { grid-column: 1 / -1; }
.field input, .field select, .field textarea {
  width: 100%;
  border: 1px solid #c6d5d8;
  background: #fff;
  padding: 11px 12px;
  border-radius: 4px;
  color: var(--ink);
  font-weight: 400;
}
.field textarea { min-height: 110px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid #75c1bd; border-color: var(--teal); }
.check-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9px;
  margin-top: 4px;
}
.check-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  font-size: 0.84rem;
  background: var(--cream);
  border: 1px solid var(--line);
  padding: 9px 11px;
  border-radius: 4px;
  cursor: pointer;
}
.check-item input { width: auto; margin: 0; }
.form-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 22px; }
.notice {
  background: var(--pale);
  border-left: 3px solid var(--teal);
  padding: 13px 16px;
  color: #1c4b50;
  font-size: 0.85rem;
  margin: 20px 0 0;
  border-radius: 0 4px 4px 0;
}
.result { display: none; background: var(--pale); border: 1px solid #9ec4c6; border-radius: 5px; padding: 20px; margin-top: 20px; }
.result.show { display: block; }
.empty { grid-column: 1 / -1; padding: 38px; text-align: center; color: var(--muted); border: 1px dashed var(--line); border-radius: 6px; background: #fff; }

/* CTA & Footer */
.cta { background: var(--navy); color: #fff; padding: 54px 0; }
.cta h2 { color: #fff; margin-bottom: 8px; }
.cta .eyebrow { color: var(--teal-light); }
.cta .container { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.cta p { color: #bfd0d4; margin: 0; max-width: 580px; }

.footer { background: var(--navy-deep); color: #a7bfc4; padding: 54px 0 28px; font-size: 0.88rem; }
.footergrid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 32px;
}
.footer .brand { color: #fff; margin-bottom: 10px; }
.footer b { color: #fff; display: block; margin-bottom: 10px; font-family: 'Space Grotesk', sans-serif; }
.footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 7px; }
.footer a:hover { color: #fff; }
.footer small {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  border-top: 1px solid #1e3a4a;
  margin-top: 40px;
  padding-top: 20px;
  color: #7f9ba2;
  font-size: 0.79rem;
}

@media (max-width: 960px) {
  .hero .container, .detail, .cat-hero-grid, .quote-layout { grid-template-columns: 1fr; }
  .detail-sidebar, .quote-aside { position: static; }
  .product-grid, .product-grid.four, .category-grid, .process { grid-template-columns: repeat(2, 1fr); }
  .footergrid { grid-template-columns: 1fr 1fr; }
  .app-list { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .container { width: min(100% - 28px, 1220px); }
  .topline span:last-child { display: none; }
  .nav { min-height: 64px; }
  .brand { font-size: 1.22rem; }
  .navlinks {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    padding: 20px;
    flex-direction: column;
    align-items: stretch;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.08);
  }
  .navlinks.open { display: flex; }
  .menu { display: block; margin-left: auto; border: 0; background: transparent; font-size: 1.5rem; color: var(--navy); }
  .hero .container { padding: 44px 0; }
  .hero-badges, .product-grid, .product-grid.four, .category-grid, .process, .process.three, .form-grid, .check-grid, .footergrid { grid-template-columns: 1fr; }
  .hero-visual img { height: 260px; }
  .section { padding: 52px 0; }
  .section-head, .cta .container { align-items: flex-start; flex-direction: column; }
  .detail-main, .quote-panel { padding: 22px; }
  .spec-table div { grid-template-columns: 1fr; gap: 4px; }
}