:root {
  --teal: #0a6a7e;
  --teal-deep: #073f4b;
  --teal-soft: #e1eff2;
  --ink: #0f2a33;
  --muted: #52676e;
  --line: #d8e3e5;
  --bg: #f5f8f8;
  --paper: #ffffff;
  --amber: #8f4f00;
  --amber-soft: #fbecd6;
  --wa: #1b7f47;
  --sans: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --cond: 'IBM Plex Sans Condensed', 'Arial Narrow', system-ui, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, Consolas, monospace;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(15, 42, 51, 0.06), 0 12px 32px rgba(15, 42, 51, 0.08);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.6 var(--sans); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--teal); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 3px solid #f0a92f; outline-offset: 2px; }
h1, h2, h3 { margin: 0; line-height: 1.15; text-wrap: balance; }
h1, .h2 { font-family: var(--cond); font-weight: 700; letter-spacing: -0.01em; }
p { margin: 0; }
.wrap { max-width: 1120px; margin: 0 auto; padding-inline: clamp(16px, 4vw, 32px); }
.muted { color: var(--muted); }
.fine { font-size: 0.82rem; color: var(--muted); }
.lead { font-size: 1.12rem; color: var(--muted); max-width: 60ch; }
.eyebrow { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--teal); }
.crumbs { font-size: 0.88rem; color: var(--muted); margin-bottom: 8px; }
.crumbs a { color: var(--muted); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 22px; border-radius: 12px;
  border: 1.5px solid var(--line); background: var(--paper); color: var(--ink);
  font: 600 1rem var(--sans); text-decoration: none; cursor: pointer;
}
.btn:hover { border-color: var(--teal); }
.btn-primary { background: var(--teal); border-color: var(--teal); color: #fff; }
.btn-primary:hover { background: var(--teal-deep); border-color: var(--teal-deep); }
.btn-wa { background: var(--wa); border-color: var(--wa); color: #fff; }
.btn-sm { min-height: 38px; padding: 0 14px; font-size: 0.92rem; border-radius: 10px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }

/* ---------- header ---------- */
.top { position: sticky; top: 0; z-index: 30; background: rgba(255, 255, 255, 0.94); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 9px; text-decoration: none; color: var(--ink); }
.brand .mark { width: 32px; height: 32px; flex: none; }
.brand span { font-family: var(--cond); font-weight: 700; font-size: 1.5rem; letter-spacing: -0.02em; }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a:not(.btn) { color: var(--ink); text-decoration: none; font-weight: 500; }
.nav a:not(.btn):hover { color: var(--teal); }
@media (max-width: 640px) { .nav a:not(.btn) { display: none; } }

/* ---------- hero ---------- */
.hero { background: linear-gradient(180deg, #fff 0%, var(--bg) 100%); border-bottom: 1px solid var(--line); overflow: hidden; }
.hero-in { display: grid; grid-template-columns: 1.05fr 1fr; gap: 32px; align-items: center; padding-block: clamp(36px, 7vw, 84px); }
.hero h1 { font-size: clamp(2.3rem, 5.4vw, 3.8rem); margin: 10px 0 16px; }
.hero-art { position: relative; aspect-ratio: 1 / 0.9; }
.hero-art img { position: absolute; border-radius: 22px; background: #fff; box-shadow: var(--shadow); border: 1px solid var(--line); }
.hero-art .h0 { width: 74%; left: 0; top: 0; }
.hero-art .h1 { width: 38%; right: 0; top: 8%; }
.hero-art .h2 { width: 38%; right: 6%; bottom: 0; }
@media (max-width: 860px) {
  .hero-in { grid-template-columns: 1fr; }
  .hero-art { max-width: 460px; width: 100%; margin: 0 auto; }
}

/* ---------- offer ---------- */
.offer-band { background: var(--amber-soft); border-bottom: 1px solid #efd6b0; }
.offer-in { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 14px; color: var(--amber); flex-wrap: wrap; }
.offer { background: var(--amber-soft); color: var(--amber); border-radius: 12px; padding: 12px 14px; margin-top: 16px; }

/* ---------- sections ---------- */
.section { padding-block: clamp(40px, 7vw, 76px); }
.section.tight { padding-block: 28px; }
.section.alt { background: var(--paper); border-block: 1px solid var(--line); }
.h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); margin-bottom: 22px; }
.sub { color: var(--muted); margin: -12px 0 24px; max-width: 62ch; }
.row-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.page-head { padding-block: clamp(32px, 6vw, 64px) 8px; }
.page-head h1 { font-size: clamp(2rem, 4.6vw, 3rem); margin-bottom: 12px; }
.page-head.thanks { padding-bottom: 72px; }

/* ---------- category tiles ---------- */
.cats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.cat {
  display: grid; grid-template-columns: 132px 1fr; gap: 16px; align-items: center;
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px; text-decoration: none; color: inherit; transition: border-color 0.15s, box-shadow 0.15s;
}
.cat:hover { border-color: var(--teal); box-shadow: var(--shadow); }
.cat h3 { font-size: 1.12rem; margin-bottom: 4px; }
.cat p { color: var(--muted); font-size: 0.95rem; }
.cat .count { display: block; margin-top: 8px; font-family: var(--mono); font-size: 0.74rem; color: var(--teal); }
@media (max-width: 760px) { .cats { grid-template-columns: 1fr; } .cat { grid-template-columns: 96px 1fr; } }
.pimg { display: block; aspect-ratio: 1; background: #fff; border-radius: 10px; overflow: hidden; }
.pimg img { width: 100%; height: 100%; object-fit: contain; }

/* ---------- product cards ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 16px; }
.pcard {
  position: relative; display: grid; gap: 6px; align-content: start;
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px 16px 18px; text-decoration: none; color: inherit; transition: border-color 0.15s, box-shadow 0.15s;
}
.pcard:hover { border-color: var(--teal); box-shadow: var(--shadow); }
.pcard .pimg { margin: -2px -4px 6px; }
.pcard h3 { font-size: 1.15rem; }
.pcard p { color: var(--muted); font-size: 0.93rem; }
.pcat { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--teal); }
.spec { font-family: var(--mono); font-size: 0.78rem; color: var(--ink); background: var(--teal-soft); border-radius: 6px; padding: 3px 7px; justify-self: start; margin-top: 4px; }
.tag-offer { position: absolute; top: 12px; right: 12px; background: var(--amber); color: #fff; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; padding: 3px 8px; border-radius: 999px; }

/* ---------- guide (reads like a lab report) ---------- */
.guide { background: var(--paper); border: 1px solid var(--line); border-radius: 6px; }
.guide-head, .guide-row { display: grid; grid-template-columns: 1fr 1.4fr; gap: 20px; padding: 14px 18px; }
.guide-head { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); border-bottom: 3px double var(--ink); }
.guide-row { border-bottom: 1px dotted var(--line); }
.guide-row:last-child { border-bottom: 0; }
.guide-row .need { font-weight: 600; }
.guide-row .models { display: flex; flex-wrap: wrap; gap: 6px 12px; margin-top: 6px; font-family: var(--mono); font-size: 0.84rem; }
@media (max-width: 700px) { .guide-head { display: none; } .guide-row { grid-template-columns: 1fr; gap: 4px; } }

/* ---------- steps ---------- */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; counter-reset: s; }
.steps li { counter-increment: s; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.steps li::before { content: counter(s, decimal-leading-zero); font-family: var(--mono); color: var(--teal); font-size: 0.9rem; display: block; margin-bottom: 10px; }
.steps h3 { font-size: 1.05rem; margin-bottom: 6px; }
.steps p { color: var(--muted); font-size: 0.94rem; }
@media (max-width: 960px) { .steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }

/* ---------- enquiry ---------- */
.enquire { background: var(--teal-deep); color: #fff; padding-block: clamp(40px, 7vw, 72px); scroll-margin-top: 64px; }
.enquire-in { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 36px; align-items: start; }
.enquire h2 { font-family: var(--cond); font-weight: 700; font-size: clamp(1.8rem, 3.6vw, 2.5rem); margin-bottom: 12px; }
.enquire-copy p { color: #cfe4e8; }
.ticks { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 8px; }
.ticks li { padding-left: 28px; position: relative; }
.ticks li::before { content: ''; position: absolute; left: 2px; top: 7px; width: 14px; height: 8px; border-left: 2.5px solid #7fe0ee; border-bottom: 2.5px solid #7fe0ee; transform: rotate(-45deg); }
.form { background: var(--paper); color: var(--ink); border-radius: 18px; padding: clamp(18px, 3vw, 26px); display: grid; grid-template-columns: 1fr 1fr; gap: 14px; box-shadow: var(--shadow); }
.form label { display: grid; gap: 5px; font-weight: 600; font-size: 0.9rem; }
.form label em { font-weight: 400; color: var(--muted); font-style: normal; }
.form input, .form select, .form textarea { width: 100%; min-height: 46px; border: 1.5px solid var(--line); border-radius: 10px; padding: 10px 12px; font: 16px var(--sans); color: var(--ink); background: #fff; }
.form textarea { min-height: 88px; resize: vertical; }
.form input:focus, .form select:focus, .form textarea:focus { border-color: var(--teal); outline: none; box-shadow: 0 0 0 3px var(--teal-soft); }
.form .span2 { grid-column: 1 / -1; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
@media (max-width: 820px) { .enquire-in { grid-template-columns: 1fr; } }
@media (max-width: 520px) { .form { grid-template-columns: 1fr; } }

/* ---------- product page ---------- */
.product { background: var(--paper); border-bottom: 1px solid var(--line); }
.product-in { display: grid; grid-template-columns: 1fr 1.05fr; gap: clamp(20px, 4vw, 48px); padding-block: clamp(24px, 5vw, 56px); align-items: start; }
.product-img { background: #fff; border: 1px solid var(--line); border-radius: 18px; overflow: hidden; }
.product h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); margin-bottom: 12px; }
.points { margin: 18px 0 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.points li { padding-left: 26px; position: relative; }
.points li::before { content: ''; position: absolute; left: 2px; top: 8px; width: 12px; height: 7px; border-left: 2.5px solid var(--teal); border-bottom: 2.5px solid var(--teal); transform: rotate(-45deg); }
@media (max-width: 820px) { .product-in { grid-template-columns: 1fr; } .product-img { max-width: 480px; } }
.specs { width: 100%; border-collapse: collapse; background: var(--paper); border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
.specs caption { text-align: left; font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); padding-bottom: 8px; }
.specs th { text-align: left; font-weight: 600; width: 30%; padding: 12px 16px; border-bottom: 1px dotted var(--line); vertical-align: top; }
.specs td { font-family: var(--mono); font-size: 0.9rem; padding: 12px 16px; border-bottom: 1px dotted var(--line); }
.specs tr:last-child th, .specs tr:last-child td { border-bottom: 0; }
.section.tight .fine { margin-top: 8px; }

/* ---------- prose (privacy) ---------- */
.prose .wrap { max-width: 760px; padding-bottom: 56px; }
.prose h1 { font-size: 2.2rem; margin-bottom: 8px; }
.prose h2 { font-family: var(--sans); font-size: 1.15rem; margin: 26px 0 6px; }
.prose p, .prose li { max-width: 66ch; }

/* ---------- footer ---------- */
.foot { background: var(--ink); color: #c6d6da; padding-top: 48px; margin-top: 0; }
.foot a { color: #e6f1f3; text-decoration: none; }
.foot a:hover { text-decoration: underline; }
.foot .brand { color: #fff; }
.foot-in { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; padding-bottom: 32px; }
.foot-brand { display: grid; gap: 12px; align-content: start; max-width: 40ch; }
.foot-brand .muted { color: #9fb5ba; font-size: 0.9rem; }
.foot-col { display: grid; gap: 8px; align-content: start; }
.foot-col h2 { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.08em; text-transform: uppercase; color: #8fa7ad; font-weight: 500; margin-bottom: 4px; }
.foot-base { display: flex; flex-wrap: wrap; gap: 8px 22px; border-top: 1px solid #28434b; padding-block: 18px; font-size: 0.86rem; }
@media (max-width: 760px) { .foot-in { grid-template-columns: 1fr; } }

/* ---------- phone dock ---------- */
.dock { display: none; }
@media (max-width: 760px) {
  body { padding-bottom: calc(76px + env(safe-area-inset-bottom, 0px)); }
  .dock {
    display: flex; gap: 10px; position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
    padding: 10px 16px calc(10px + env(safe-area-inset-bottom, 0px));
    background: rgba(255, 255, 255, 0.96); border-top: 1px solid var(--line); backdrop-filter: blur(8px);
  }
  .dock .btn { flex: 1; }
}