/* Layout: industrial B2B catalogue — full-width bands, 1200px content column, spec data set like cone labels */
:root {
  --bg: #ffffff;
  --bg-soft: #f2f5f9;
  --fg: #16202c;
  --muted: #586577;
  --line: #dce3ec;
  --brand: #0f4a8c;
  --brand-deep: #0a3566;
  --brand-tint: #e6eef8;
  --on-brand: #ffffff;
  --accent: #e39a12;
  --on-accent: #1d1503;
  --wa: #25d366;
  --on-wa: #06301a;
  --card: #ffffff;
  --shadow: 0 10px 30px rgba(15, 40, 80, .08);
  --font-display: "Barlow Semi Condensed", "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Source Sans 3", "Segoe UI", Roboto, Arial, sans-serif;
  --font-mono: "Barlow Semi Condensed", "Arial Narrow", Arial, sans-serif;
  --wrap: 1200px;
  --gutter-l: max(16px, env(safe-area-inset-left, 0px));
  --gutter-r: max(16px, env(safe-area-inset-right, 0px));
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d141d; --bg-soft: #131d29; --fg: #e6ecf3; --muted: #9aa8b9; --line: #24334a;
    --brand: #5b9be0; --brand-deep: #0b2a4f; --brand-tint: #16263a; --on-brand: #06121f;
    --accent: #f0b23c; --on-accent: #1d1503; --card: #121b26; --shadow: 0 10px 30px rgba(0,0,0,.35);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0d141d; --bg-soft: #131d29; --fg: #e6ecf3; --muted: #9aa8b9; --line: #24334a;
  --brand: #5b9be0; --brand-deep: #0b2a4f; --brand-tint: #16263a; --on-brand: #06121f;
  --accent: #f0b23c; --on-accent: #1d1503; --card: #121b26; --shadow: 0 10px 30px rgba(0,0,0,.35);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 17px/1.7 var(--font-body);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 60; background: var(--brand-deep); }
img { max-width: 100%; display: block; }
a { color: var(--brand); }
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.12; margin: 0; text-wrap: balance; letter-spacing: 0; font-weight: 700; }
h1 { font-size: clamp(2.2rem, 4.6vw, 3.6rem); font-weight: 700; }
h2 { font-size: clamp(1.75rem, 3.2vw, 2.5rem); font-weight: 700; }
h3 { font-size: 1.25rem; font-weight: 600; letter-spacing: .01em; }
p { margin: 0; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-left: var(--gutter-l); padding-right: var(--gutter-r); }
.section { padding-block: clamp(56px, 8vw, 96px); }
.section.soft { background: var(--bg-soft); }
.eyebrow { font: 600 .9rem/1 var(--font-display); text-transform: uppercase; letter-spacing: .16em; color: var(--brand); }
.section-head { display: grid; gap: 12px; max-width: 720px; margin-bottom: 40px; }
.section-head p { color: var(--muted); }
.section-head.row { max-width: none; grid-template-columns: 1fr auto; align-items: end; }
.lead { font-size: 1.1rem; color: var(--muted); max-width: 62ch; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 22px; border-radius: 4px; border: 2px solid transparent; font: 600 1.02rem/1.2 var(--font-display); letter-spacing: .03em; text-decoration: none; cursor: pointer; transition: transform .15s, background .15s; }
.btn:hover { transform: translateY(-1px); }
.btn svg { width: 18px; height: 18px; flex: none; }
.btn-primary { background: var(--brand); color: var(--on-brand); }
.btn-primary:hover { background: var(--brand-deep); color: #fff; }
.btn-accent { background: var(--accent); color: var(--on-accent); }
.btn-wa { background: var(--wa); color: var(--on-wa); }
.btn-ghost { border-color: currentColor; color: var(--brand); background: transparent; }
.btn-light { border-color: rgba(255,255,255,.8); color: #fff; background: transparent; }
.link-arrow { font-weight: 600; text-decoration: none; white-space: nowrap; }
.link-arrow::after { content: " →"; }

/* Top bar + header */
.topbar { background: var(--brand-deep); color: #d6e3f3; font-size: .85rem; }
.topbar .wrap { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding-block: 8px; flex-wrap: wrap; }
.topbar a { color: #fff; text-decoration: none; }
.topbar .contacts { display: flex; gap: 20px; flex-wrap: wrap; }
.topbar .contacts span { display: inline-flex; align-items: center; gap: 6px; }
.topbar svg { width: 15px; height: 15px; }

.site-header { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50; background: var(--bg); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 76px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--fg); }
.logo-mark { width: 54px; height: 54px; flex: none; object-fit: contain; background: #ffffff; border-radius: 6px; padding: 3px; }
.logo b { display: block; font: 700 1.45rem/1 var(--font-display); letter-spacing: .06em; }
.logo small { display: block; font-size: .7rem; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); margin-top: 4px; }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a { color: var(--fg); text-decoration: none; font-family: var(--font-display); font-weight: 600; font-size: 1.08rem; letter-spacing: .03em; padding-block: 26px; border-bottom: 3px solid transparent; }
.nav a:hover, .nav a.active { color: var(--brand); border-bottom-color: var(--brand); }
.nav .btn { padding: 10px 18px; border: 0; color: var(--on-accent); }
.nav .btn:hover { color: var(--on-accent); }
.menu-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: 4px; padding: 8px 10px; color: var(--fg); cursor: pointer; }
.menu-toggle svg { width: 22px; height: 22px; display: block; }

/* Hero */
.hero { position: relative; overflow: hidden; background: var(--brand-deep); }
.slides { position: relative; aspect-ratio: 1920 / 640; min-height: 460px; max-height: 640px; max-width: 100%; }
.slide { position: absolute; inset: 0; opacity: 0; transition: opacity .9s ease; }
.slide.is-active { opacity: 1; }
.slide img { width: 100%; height: 100%; object-fit: cover; object-position: 75% center; }
.slide::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(8,32,64,.88) 0%, rgba(8,32,64,.62) 38%, rgba(8,32,64,0) 64%); }
.slide-copy { position: absolute; inset: 0; z-index: 2; display: flex; align-items: center; }
.slide-copy .inner { max-width: 520px; color: #fff; display: grid; gap: 18px; }
.slide-copy .eyebrow { color: #ffd180; }
.slide-copy p { color: #dbe6f4; font-size: 1.08rem; }
.slide-copy .actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 6px; }
.dots { position: absolute; z-index: 3; bottom: 20px; left: 0; right: 0; display: flex; justify-content: center; gap: 10px; }
.dots button { width: 34px; height: 4px; border: 0; padding: 0; background: rgba(255,255,255,.45); cursor: pointer; }
.dots button.is-active { background: var(--accent); }

/* Facts strip — numbers taken straight from the spec sheet */
.facts { background: var(--brand); color: var(--on-brand); }
.facts .wrap { display: grid; grid-template-columns: repeat(4, 1fr); }
.fact { padding: 26px 20px; border-left: 1px solid rgba(255,255,255,.18); }
.fact:first-child { border-left: 0; }
.fact b { display: block; font: 700 2rem/1.1 var(--font-display); font-variant-numeric: tabular-nums; }
.fact span { font-size: .92rem; opacity: .85; }

/* Category grid */
.grid { display: grid; gap: 24px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.cat { background: var(--card); border: 1px solid var(--line); display: flex; flex-direction: column; text-decoration: none; color: var(--fg); transition: box-shadow .2s, border-color .2s; }
.cat:hover { box-shadow: var(--shadow); border-color: var(--brand); }
.cat .ph { aspect-ratio: 1; overflow: hidden; background: var(--bg-soft); }
.cat .ph img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.cat:hover .ph img { transform: scale(1.04); }
.cat .body { padding: 18px 18px 20px; display: grid; gap: 6px; }
.cat .body p { color: var(--muted); font-size: .9rem; }
.cat .cn { font-size: .8rem; color: var(--muted); }

/* Featured product split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 64px); align-items: center; }
.split > * { min-width: 0; }
.split .copy { display: grid; gap: 18px; }
.checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.checks li { position: relative; padding-left: 28px; }
.checks li::before { content: ""; position: absolute; left: 0; top: .45em; width: 16px; height: 9px; border-left: 3px solid var(--brand); border-bottom: 3px solid var(--brand); transform: rotate(-45deg); }
.actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* Cone-label chips */
.labels { display: flex; flex-wrap: wrap; gap: 8px; }
.label { font: 500 .95rem/1 var(--font-mono); letter-spacing: .02em; padding: 8px 10px; border: 1px solid var(--line); background: var(--bg-soft); border-radius: 3px; color: var(--fg); }
.label b { color: var(--brand); font-weight: 600; }

/* Spec table */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); background: var(--card); }
.spec { width: 100%; border-collapse: collapse; min-width: 640px; font-variant-numeric: tabular-nums; }
.spec th, .spec td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--line); }
.spec thead th { background: var(--brand); color: var(--on-brand); font: 600 .95rem/1.2 var(--font-display); text-transform: uppercase; letter-spacing: .1em; }
.spec tbody tr:nth-child(even) { background: var(--bg-soft); }
.spec tbody tr:hover { background: var(--brand-tint); }
.spec td.count { font: 700 1.15rem/1 var(--font-display); color: var(--brand); letter-spacing: .02em; }
.spec td:last-child { text-align: right; }
.spec .btn { padding: 7px 14px; font-size: .85rem; }
.note { font-size: .88rem; color: var(--muted); margin-top: 14px; }

/* Count explainer */
.count-demo { display: grid; grid-template-columns: auto 1fr; gap: 28px 40px; align-items: center; background: var(--card); border: 1px solid var(--line); padding: clamp(22px, 4vw, 40px); }
.count-demo > * { min-width: 0; }
.count-big { font: 700 clamp(3.4rem, 9vw, 6.2rem)/1 var(--font-display); color: var(--brand); }
.count-big span { color: var(--accent); }
.count-demo dl { margin: 0; display: grid; gap: 14px; }
.count-demo dt { font-weight: 700; }
.count-demo dd { margin: 2px 0 0; color: var(--muted); }

/* Applications */
.app { display: grid; gap: 8px; padding: 22px; background: var(--card); border: 1px solid var(--line); }
.app svg { width: 34px; height: 34px; color: var(--brand); }
.app p { font-size: .9rem; color: var(--muted); }
.app .fit { font: 600 .95rem/1.4 var(--font-mono); color: var(--brand); letter-spacing: .03em; }

/* Why us */
.why { display: grid; gap: 10px; padding-top: 18px; border-top: 3px solid var(--brand); }
.why p { color: var(--muted); font-size: .95rem; }

/* Shipping */
.ship-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: s; }
.ship-steps li { list-style: none; padding: 22px 22px 22px 0; border-top: 2px solid var(--line); position: relative; }
.ship-steps li::before { counter-increment: s; content: counter(s, decimal-leading-zero); display: block; font: 700 1.1rem/1 var(--font-mono); color: var(--brand); margin-bottom: 10px; }
.ship-steps li::after { content: ""; position: absolute; top: -2px; left: 0; width: 40px; height: 2px; background: var(--brand); }
.ship-steps p { color: var(--muted); font-size: .92rem; margin-top: 6px; }
.ship-steps { padding: 0; margin: 0; }

/* FAQ */
.faq { display: grid; gap: 0; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; padding: 20px 40px 20px 0; font: 600 1.2rem/1.4 var(--font-display); letter-spacing: .01em; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 6px; top: 16px; font-size: 1.5rem; color: var(--brand); }
.faq details[open] summary::after { content: "−"; }
.faq details p { padding: 0 0 20px; color: var(--muted); max-width: 70ch; }

/* Gallery (product page) */
.gallery { display: grid; gap: 12px; }
.gallery .main { aspect-ratio: 1; border: 1px solid var(--line); background: var(--bg-soft); overflow: hidden; }
.gallery .main img { width: 100%; height: 100%; object-fit: cover; }
.thumbs { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
.thumbs button { padding: 0; border: 2px solid var(--line); background: none; cursor: pointer; aspect-ratio: 1; overflow: hidden; }
.thumbs button.is-active { border-color: var(--brand); }
.thumbs img { width: 100%; height: 100%; object-fit: cover; }

.page-hero { background: linear-gradient(90deg, rgba(8,32,64,.92), rgba(8,32,64,.55)), url(img/banner-1.jpg) center/cover; color: #fff; }
.page-hero .wrap { padding-block: clamp(48px, 7vw, 80px); display: grid; gap: 12px; }
.page-hero p { color: #d3e0f0; max-width: 62ch; }
.crumbs { font-size: .85rem; color: #b9cbe2; }
.crumbs a { color: #fff; text-decoration: none; }

/* Inquiry */
.inquiry { background: var(--brand-deep); color: #e6eef8; }
.inquiry .split { align-items: start; }
.inquiry h2 { color: #fff; }
.inquiry .eyebrow { color: #ffd180; }
.inquiry .lead { color: #c6d6ea; }
.contact-list { list-style: none; padding: 0; margin: 8px 0 0; display: grid; gap: 14px; }
.contact-list li { display: grid; grid-template-columns: 44px 1fr; gap: 14px; align-items: center; }
.contact-list .ic { width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; background: rgba(255,255,255,.1); }
.contact-list svg { width: 20px; height: 20px; color: #fff; }
.contact-list small { display: block; color: #9fb6d3; font-size: .78rem; text-transform: uppercase; letter-spacing: .1em; }
.contact-list a, .contact-list span.v { color: #fff; font-weight: 600; text-decoration: none; user-select: all; word-break: break-word; }
.form { background: var(--card); color: var(--fg); padding: clamp(22px, 4vw, 36px); display: grid; gap: 16px; border-radius: 4px; box-shadow: var(--shadow); }
.form .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: grid; gap: 6px; min-width: 0; }
.field label { font-weight: 600; font-size: .92rem; }
.field label i { color: #c0392b; font-style: normal; }
.field input, .field select, .field textarea { font: inherit; padding: 11px 12px; border: 1px solid var(--line); border-radius: 3px; background: var(--bg); color: var(--fg); width: 100%; }
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--brand); outline-offset: 0; border-color: var(--brand); }
.form .send { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form .hint { font-size: .82rem; color: var(--muted); }
.form-status { padding: 14px; border: 1px solid var(--line); background: var(--bg-soft); font-size: .9rem; display: grid; gap: 10px; }
.form-status textarea { font: .9rem/1.5 ui-monospace, Menlo, Consolas, monospace; min-height: 140px; width: 100%; padding: 10px; border: 1px solid var(--line); background: var(--bg); color: var(--fg); }
.form-status .err { color: #c0392b; }

/* Footer */
.site-footer { background: #08192e; color: #a9bad0; font-size: .92rem; }
.site-footer .wrap { padding-block: 56px 28px; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 32px; }
.site-footer h4 { color: #fff; font-size: 1rem; margin-bottom: 14px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.site-footer a { color: #d5e1ef; text-decoration: none; }
.site-footer a:hover { color: #fff; }
.site-footer .logo { color: #fff; margin-bottom: 14px; }
.site-footer .logo small { color: #8ea3bd; }
.copyright { border-top: 1px solid #1d3350; margin-top: 40px; padding-top: 20px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: .82rem; }

/* Floating contact */
.float { position: fixed; z-index: 70; right: calc(18px + env(safe-area-inset-right, 0px)); bottom: calc(18px + env(safe-area-inset-bottom, 0px)); display: grid; gap: 10px; }
.float a { width: 54px; height: 54px; border-radius: 50%; display: grid; place-items: center; box-shadow: 0 6px 18px rgba(0,0,0,.25); transition: transform .15s; }
.float a:hover { transform: scale(1.07); }
.float svg { width: 26px; height: 26px; }
.float .f-wa { background: var(--wa); color: #fff; }
.float .f-mail { background: var(--brand); color: #fff; }
.float .f-top { background: var(--card); color: var(--fg); border: 1px solid var(--line); }

/* Responsive */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .ship-steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .menu-toggle { display: block; }
  .nav { position: absolute; top: 100%; left: 0; right: 0; background: var(--bg); border-bottom: 1px solid var(--line); flex-direction: column; align-items: stretch; gap: 0; padding: 8px var(--gutter-r) 16px var(--gutter-l); display: none; }
  .nav.open { display: flex; }
  .nav a { padding-block: 12px; border-bottom: 1px solid var(--line); }
  .nav .btn { margin-top: 12px; }
  .split, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .facts .wrap { grid-template-columns: repeat(2, 1fr); }
  .fact:nth-child(3) { border-left: 0; }
  .count-demo { grid-template-columns: 1fr; }
  .section-head.row { grid-template-columns: 1fr; }
  .slides { aspect-ratio: auto; min-height: 520px; }
  .slide img { object-position: 82% center; }
  .slide::after { background: linear-gradient(0deg, rgba(8,32,64,.9) 0%, rgba(8,32,64,.75) 55%, rgba(8,32,64,.2) 100%); }
  .slide-copy { align-items: flex-end; padding-bottom: 56px; }
  .topbar .hide-sm { display: none; }
}
@media (max-width: 560px) {
  .grid-4 { grid-template-columns: 1fr 1fr; gap: 14px; }
  .cat .body { padding: 12px; }
  .cat .body p { display: none; }
  .form .row2, .form .send { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
  .ship-steps { grid-template-columns: 1fr; }
  .thumbs { grid-template-columns: repeat(4, 1fr); }
  .thumbs button:nth-child(5) { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .slide, .cat .ph img, .btn, .float a { transition: none; }
}
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.table-wrap { position: relative; }
.slide-copy .wrap { width: 100%; }
/* Standalone photos inside layout grids keep a square crop instead of stretching to the row height */
.split > img, .grid > img { width: 100%; height: auto; aspect-ratio: 1; object-fit: cover; align-self: center; }
[hidden] { display: none !important; }