/* =========================================================
   TOFM Vacuum Equipment Pvt. Ltd. : website stylesheet
   Layout concept: an equipment datasheet. Serif headlines,
   navy bands, monospaced "nameplate" panels with orange
   figures, thin engineering rules, square corners.
   Brand guideline: single light theme (white background,
   black text) by design.
   ========================================================= */
:root {
  /* Brand colours (approved guideline) */
  --orange: #F28C00;      /* primary */
  --navy: #0B3556;        /* secondary */
  --blue: #1769A8;        /* accent */
  --white: #FFFFFF;       /* background */
  --black: #000000;       /* text */

  /* Derived working tones (navy-biased neutrals) */
  --navy-deep: #072640;
  --orange-ink: #9A5800;  /* orange for small text on white (AA contrast) */
  --ink-2: #2E3B47;       /* secondary text */
  --ink-3: #56636F;       /* captions */
  --line: #D5DEE6;        /* engineering rules */
  --tint: #F2F6F9;        /* panels, alternate rows */
  --blueprint: #EAF1F8;   /* drawing background */

  /* Type */
  --serif: "Times New Roman", Tinos, Times, "Liberation Serif", serif;
  --mono: "Roboto Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  /* Scale */
  --fs-xs: 0.78rem;
  --fs-sm: 0.9rem;
  --fs-base: 1.125rem;
  --fs-lg: 1.3rem;
  --fs-h3: 1.45rem;
  --fs-h2: clamp(1.8rem, 1.3rem + 1.8vw, 2.5rem);
  --fs-h1: clamp(2.2rem, 1.4rem + 3vw, 3.6rem);

  --wrap: 1200px;
  --gutter: clamp(16px, 4vw, 40px);
  --radius: 2px;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; animation: none !important; } }
body {
  margin: 0;
  background: var(--white);
  color: var(--black);
  font-family: var(--serif);
  font-size: var(--fs-base);
  line-height: 1.6;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); text-underline-offset: 3px; }
a:hover { color: var(--navy); }
:focus-visible { outline: 3px solid var(--orange); outline-offset: 2px; }
h1, h2, h3, h4 { font-family: var(--serif); color: var(--navy); line-height: 1.15; margin: 0 0 0.5em; text-wrap: balance; font-weight: 700; }
h1 { font-size: var(--fs-h1); letter-spacing: -0.01em; }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }
h4 { font-size: var(--fs-lg); }
p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.25em; }
li { margin-bottom: 0.35em; }
strong { font-weight: 700; }
table { border-collapse: collapse; width: 100%; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 0; background: var(--orange); color: var(--navy); padding: 8px 14px; z-index: 100; font-family: var(--mono); }
.skip:focus { left: 8px; }

.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.mono { font-family: var(--mono); }
.eyebrow {
  font-family: var(--mono); font-size: var(--fs-xs); font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--orange-ink);
  display: block; margin-bottom: 0.8rem;
}
.lead { font-size: var(--fs-lg); color: var(--ink-2); max-width: 62ch; }
.muted { color: var(--ink-3); }

/* ---------- Prototype bar (remove before go-live) ---------- */
.proto-bar { background: var(--navy-deep); color: #C9D6E2; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.04em; }
.proto-bar .wrap { display: flex; flex-wrap: wrap; gap: 6px 16px; justify-content: space-between; padding-block: 6px; }
.proto-bar a { color: var(--orange); }

/* ---------- Top bar ---------- */
.topbar { background: var(--navy); color: #E3EBF2; font-family: var(--mono); font-size: var(--fs-xs); }
.topbar .wrap { display: flex; flex-wrap: wrap; gap: 6px 22px; justify-content: space-between; align-items: center; padding-block: 8px; }
.topbar a { color: #FFFFFF; text-decoration: none; }
.topbar a:hover { color: var(--orange); }
.topbar .contacts { display: flex; flex-wrap: wrap; gap: 6px 20px; }

/* ---------- Header / navigation ---------- */
.site-header { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50; background: var(--white); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 12px; }
.logo img { height: 46px; width: auto; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav > ul { list-style: none; display: flex; align-items: center; gap: 2px; margin: 0; padding: 0; }
.nav > ul > li { position: relative; margin: 0; }
.nav a.navlink, .nav button.navlink {
  display: inline-flex; align-items: center; gap: 6px; padding: 10px 12px;
  font-family: var(--serif); font-size: 1.08rem; color: var(--black); text-decoration: none;
  background: none; border: 0; cursor: pointer; border-bottom: 2px solid transparent;
}
.nav a.navlink:hover, .nav button.navlink:hover, .nav .is-current > .navlink { color: var(--navy); border-bottom-color: var(--orange); }
.nav .caret { width: 10px; height: 10px; }
.mega {
  position: absolute; top: 100%; left: 50%; transform: translateX(-38%);
  width: min(860px, 92vw); background: var(--white); border: 1px solid var(--line); border-top: 3px solid var(--orange);
  box-shadow: 0 18px 40px rgba(11, 53, 86, 0.14); padding: 22px; display: none;
  grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px;
}
.has-mega:hover .mega, .has-mega:focus-within .mega, .has-mega.open .mega { display: grid; }
.mega h4 { font-family: var(--mono); font-size: var(--fs-xs); letter-spacing: 0.12em; text-transform: uppercase; color: var(--orange-ink); margin-bottom: 8px; font-weight: 500; }
.mega ul { list-style: none; padding: 0; margin: 0; }
.mega li { margin: 0; }
.mega a { display: block; padding: 5px 0; color: var(--black); text-decoration: none; font-size: 1rem; line-height: 1.3; }
.mega a:hover { color: var(--blue); }
.mega .all { grid-column: 1 / -1; border-top: 1px solid var(--line); padding-top: 12px; font-family: var(--mono); font-size: var(--fs-sm); }
.nav-cta { margin-left: 10px; }
.menu-toggle { display: none; background: none; border: 1px solid var(--line); padding: 8px 12px; font-family: var(--mono); font-size: var(--fs-sm); color: var(--navy); cursor: pointer; }

@media (max-width: 1020px) {
  .menu-toggle { display: inline-block; }
  .nav { position: absolute; left: 0; right: 0; top: 100%; background: var(--white); border-bottom: 1px solid var(--line); flex-direction: column; align-items: stretch; padding: 8px var(--gutter) 18px; display: none; max-height: 80vh; overflow-y: auto; }
  .nav.open { display: flex; }
  .nav > ul { flex-direction: column; align-items: stretch; }
  .nav a.navlink, .nav button.navlink { width: 100%; justify-content: space-between; border-bottom: 1px solid var(--line); }
  .mega { position: static; transform: none; width: 100%; box-shadow: none; border: 0; padding: 10px 0 10px 12px; grid-template-columns: 1fr 1fr; }
  .has-mega:hover .mega { display: none; }
  .has-mega.open .mega { display: grid; }
  .nav-cta { margin: 12px 0 0; }
}
@media (max-width: 520px) { .mega { grid-template-columns: 1fr; } .logo img { height: 38px; } }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--mono); font-size: 0.86rem; font-weight: 500; letter-spacing: 0.04em; text-transform: uppercase;
  padding: 13px 20px; border: 2px solid transparent; border-radius: var(--radius); text-decoration: none; cursor: pointer; line-height: 1.2;
}
.btn-primary { background: var(--orange); color: var(--navy); border-color: var(--orange); }
.btn-primary:hover { background: #FFA11F; color: var(--navy); }
.btn-outline { background: transparent; color: var(--navy); border-color: var(--navy); }
.btn-outline:hover { background: var(--navy); color: var(--white); }
.btn-light { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.7); }
.btn-light:hover { background: var(--white); color: var(--navy); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 1.4rem; }

/* ---------- Sections ---------- */
.section { padding-block: clamp(56px, 7vw, 96px); }
.section-tint { background: var(--tint); border-block: 1px solid var(--line); }
.section-navy { background: var(--navy); color: #E6EDF3; }
.section-navy h2, .section-navy h3 { color: var(--white); }
.section-navy .eyebrow { color: var(--orange); }
.section-navy .lead { color: #C9D6E2; }
.section-head { max-width: 760px; margin-bottom: 2.4rem; }
.section-head p { color: var(--ink-2); }
.section-navy .section-head p { color: #C9D6E2; }

/* ---------- Breadcrumbs ---------- */
.crumbs { font-family: var(--mono); font-size: var(--fs-xs); color: var(--ink-3); padding-block: 14px; border-bottom: 1px solid var(--line); }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 4px 8px; margin: 0; padding: 0; }
.crumbs li { margin: 0; }
.crumbs li + li::before { content: "/"; margin-right: 8px; color: var(--line); }
.crumbs a { color: var(--ink-3); }

/* ---------- Hero ---------- */
.hero { padding-block: clamp(40px, 6vw, 80px); border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr); gap: clamp(28px, 5vw, 64px); align-items: center; }
.hero h1 { color: var(--navy); }
.hero h1 em { font-style: normal; color: var(--orange-ink); }
.hero-tagline { font-family: var(--serif); font-style: italic; color: var(--ink-2); font-size: 1.15rem; margin-top: 1rem; }
.hero-figure { position: relative; margin: 0; border: 1px solid var(--line); background: var(--tint); }
.hero-figure img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.hero-figure figcaption { position: absolute; left: 0; bottom: 0; background: var(--navy); color: var(--white); font-family: var(--mono); font-size: var(--fs-xs); letter-spacing: 0.08em; text-transform: uppercase; padding: 8px 12px; border-top: 3px solid var(--orange); }
.page-hero { padding-block: clamp(36px, 5vw, 64px); background: var(--tint); border-bottom: 1px solid var(--line); }
.page-hero .lead { margin-bottom: 0; }
@media (max-width: 880px) { .hero-grid { grid-template-columns: 1fr; } }

/* ---------- Nameplate (signature element) ---------- */
.nameplate {
  position: relative; margin-top: 2rem; border: 2px solid var(--navy); background: var(--white);
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
}
.nameplate::before {
  content: attr(data-label); position: absolute; top: -0.75em; left: 14px; background: var(--white); padding: 0 8px;
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.14em; color: var(--navy);
}
.nameplate .cell { padding: 18px 16px 14px; border-right: 1px solid var(--line); min-width: 0; }
.nameplate .cell:last-child { border-right: 0; }
.nameplate .k { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); display: block; }
.nameplate .v { font-family: var(--mono); font-size: 1.12rem; font-weight: 500; color: var(--navy); display: block; margin-top: 4px; font-variant-numeric: tabular-nums; }
.nameplate .v b { color: var(--orange-ink); font-weight: 500; }
.nameplate.plate-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 700px) {
  .nameplate, .nameplate.plate-3 { grid-template-columns: 1fr 1fr; }
  .nameplate .cell:nth-child(2n) { border-right: 0; }
  .nameplate .cell { border-bottom: 1px solid var(--line); }
}

/* ---------- Grids & cards ---------- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 980px) { .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.card { display: flex; flex-direction: column; background: var(--white); border: 1px solid var(--line); text-decoration: none; color: inherit; min-width: 0; transition: border-color .15s, transform .15s; }
a.card:hover { border-color: var(--navy); transform: translateY(-2px); color: inherit; }
.card .media { aspect-ratio: 16 / 10; background: var(--blueprint); overflow: hidden; border-bottom: 1px solid var(--line); }
.card .media img, .card .media svg { width: 100%; height: 100%; object-fit: cover; }
.card .body { padding: 18px 18px 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card .cat { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--orange-ink); }
.card h3 { font-size: 1.32rem; margin: 0; }
.card p { margin: 0; color: var(--ink-2); font-size: 1.02rem; }
.card .spec { font-family: var(--mono); font-size: 0.8rem; color: var(--navy); background: var(--tint); padding: 4px 8px; align-self: flex-start; }
.card .more { margin-top: auto; padding-top: 8px; font-family: var(--mono); font-size: 0.8rem; color: var(--blue); }
.card.featured { border: 2px solid var(--orange); }

/* ---------- USP / feature list ---------- */
.usps { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-top: 2px solid var(--navy); }
.usp { padding: 22px 18px 6px 0; border-right: 1px solid var(--line); padding-left: 18px; min-width: 0; }
.usp:first-child { padding-left: 0; }
.usp:last-child { border-right: 0; }
.usp svg { width: 34px; height: 34px; color: var(--orange); margin-bottom: 10px; }
.usp h3 { font-size: 1.18rem; margin-bottom: 6px; }
.usp p { font-size: 1rem; color: var(--ink-2); margin: 0; }
@media (max-width: 980px) { .usps { grid-template-columns: repeat(2, minmax(0, 1fr)); } .usp, .usp:first-child { padding: 20px 16px; border-right: 0; border-bottom: 1px solid var(--line); } }
@media (max-width: 560px) { .usps { grid-template-columns: 1fr; } }

.features { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--line); }
.feature { padding: 18px 20px 16px 0; border-bottom: 1px solid var(--line); min-width: 0; }
.feature:nth-child(2n) { padding-left: 20px; border-left: 1px solid var(--line); }
.feature h3 { font-size: 1.15rem; margin-bottom: 4px; }
.feature p { margin: 0; color: var(--ink-2); font-size: 1.02rem; }
@media (max-width: 640px) { .features { grid-template-columns: 1fr; } .feature:nth-child(2n) { padding-left: 0; border-left: 0; } }

/* ---------- Process flow (centrifuge + filtration) ---------- */
.flow { display: flex; flex-wrap: wrap; align-items: stretch; gap: 10px; margin-top: 1.6rem; }
.flow .step { flex: 1 1 140px; min-width: 0; padding: 16px 14px; border: 1px solid rgba(255,255,255,0.28); position: relative; }
.prose .flow .step { flex-basis: 30%; }
.flow .step .n { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; color: var(--orange); display: block; }
.flow .step strong { display: block; font-size: 1.1rem; color: var(--white); margin: 4px 0; }
.flow .step span.d { font-size: 0.95rem; color: #C9D6E2; display: block; line-height: 1.4; }
.flow .step.hl { background: rgba(242, 140, 0, 0.14); border-color: var(--orange); }
.flow-light .step { border-color: var(--line); background: var(--white); }
.flow-light .step strong { color: var(--navy); }
.flow-light .step span.d { color: var(--ink-2); }
.flow-light .step .n { color: var(--orange-ink); }
.flow-light .step.hl { background: #FFF6EA; border-color: var(--orange); }
@media (max-width: 760px) { .flow .step, .prose .flow .step { flex-basis: 100%; } }

/* ---------- Lists ---------- */
.ticks { list-style: none; padding: 0; margin: 0; }
.ticks li { position: relative; padding-left: 28px; margin-bottom: 0.55em; }
.ticks li::before { content: ""; position: absolute; left: 2px; top: 0.55em; width: 12px; height: 7px; border-left: 2px solid var(--orange); border-bottom: 2px solid var(--orange); transform: rotate(-45deg); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 0; }
.chips li { margin: 0; font-family: var(--mono); font-size: 0.8rem; padding: 6px 10px; border: 1px solid var(--line); background: var(--white); color: var(--navy); }
.section-navy .chips li { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.3); }

/* ---------- Two-column content with sidebar ---------- */
.content-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: clamp(28px, 5vw, 56px); align-items: start; }
.prose { min-width: 0; }
.prose h2 { font-size: clamp(1.6rem, 1.2rem + 1.2vw, 2.1rem); margin-top: 2.2rem; padding-top: 1.2rem; border-top: 1px solid var(--line); }
.prose h2:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.prose h3 { margin-top: 1.6rem; }
.prose p, .prose li { color: #111; }
.sidebar { position: sticky; top: 96px; display: grid; gap: 18px; min-width: 0; }
@media (max-width: 960px) { .content-grid { grid-template-columns: 1fr; } .sidebar { position: static; } }
.panel { border: 1px solid var(--line); padding: 20px; background: var(--white); }
.panel-navy { background: var(--navy); color: #E6EDF3; border-color: var(--navy); }
.panel-navy h3 { color: var(--white); }
.panel h3 { font-size: 1.25rem; }
.panel .btn { width: 100%; margin-top: 10px; }
.panel ul { list-style: none; padding: 0; margin: 0; }
.panel li { margin: 0; padding: 7px 0; border-bottom: 1px solid var(--line); font-size: 1rem; }
.panel li:last-child { border-bottom: 0; }
.panel ul.ticks li { padding-left: 28px; }
.panel ul.ticks li::before { top: 1.05em; }
.panel-navy .contact-line { font-family: var(--mono); font-size: 0.85rem; color: var(--white); margin-top: 12px; }
.panel-navy .contact-line a { color: var(--white); }

/* ---------- Answer box (AEO) ---------- */
.answer { border-left: 4px solid var(--orange); background: var(--tint); padding: 16px 20px; margin: 0 0 1.6rem; }
.answer .label { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--orange-ink); display: block; margin-bottom: 4px; }
.answer p { margin: 0; font-size: 1.12rem; }
.takeaways { border: 1px solid var(--line); border-top: 3px solid var(--navy); padding: 18px 22px 8px; margin: 0 0 2rem; }
.takeaways h2 { font-size: 1.2rem !important; margin: 0 0 8px !important; padding: 0 !important; border: 0 !important; font-family: var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--navy); }

/* ---------- Spec table ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); margin: 0 0 1.4rem; }
.spec-table th, .spec-table td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; font-size: 1rem; }
.spec-table th { width: 44%; font-weight: 400; color: var(--ink-2); }
.spec-table td { font-family: var(--mono); font-size: 0.9rem; color: var(--navy); font-variant-numeric: tabular-nums; }
.spec-table tr:nth-child(even) { background: var(--tint); }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }
.data-table th, .data-table td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); font-size: 1rem; vertical-align: top; }
.data-table thead th { background: var(--navy); color: var(--white); font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; font-weight: 500; }
.data-table td.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.tbc { display: inline-block; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em; color: var(--orange-ink); border: 1px dashed var(--orange); padding: 1px 6px; vertical-align: middle; }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; padding: 16px 40px 16px 0; position: relative; font-size: 1.15rem; font-weight: 700; color: var(--navy); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 6px; top: 12px; font-family: var(--mono); font-size: 1.4rem; color: var(--orange-ink); }
.faq details[open] summary::after { content: "-"; }
.faq .a { padding: 0 0 16px; color: var(--ink-2); }
.faq .a p:last-child { margin-bottom: 0; }

/* ---------- Figures / drawings ---------- */
.figure { margin: 0; border: 1px solid var(--line); background: var(--blueprint); }
.figure img, .figure svg { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; }
.figure figcaption { font-family: var(--mono); font-size: 0.72rem; color: var(--ink-3); padding: 8px 12px; background: var(--white); border-top: 1px solid var(--line); }
.drawing { color: var(--blue); }
.gallery { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.gallery figure { margin: 0; border: 1px solid var(--line); }
.gallery img { aspect-ratio: 4 / 3; object-fit: cover; width: 100%; }
.gallery figcaption { font-family: var(--mono); font-size: 0.7rem; padding: 6px 8px; color: var(--ink-3); }
@media (max-width: 760px) { .gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* ---------- Markets ---------- */
.markets { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; border-top: 1px solid rgba(255,255,255,0.25); }
.market { padding: 18px 16px 10px 0; min-width: 0; }
.market h3 { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--orange) !important; font-weight: 500; }
.market p { margin: 0; color: var(--white); font-size: 1.1rem; }
@media (max-width: 760px) { .markets { grid-template-columns: 1fr 1fr; } }

/* ---------- Industries ---------- */
.industry { border-top: 2px solid var(--navy); padding-top: 14px; min-width: 0; }
.industry h3 { font-size: 1.2rem; margin-bottom: 6px; }
.industry p { font-size: 1rem; color: var(--ink-2); margin: 0; }

/* ---------- Blog ---------- */
.post-meta { font-family: var(--mono); font-size: var(--fs-xs); color: var(--ink-3); display: flex; flex-wrap: wrap; gap: 4px 16px; }
.article { max-width: 760px; }
.article .prose p, .article .prose li { font-size: 1.16rem; line-height: 1.7; }
.article-hero img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border: 1px solid var(--line); }
.toc { border: 1px solid var(--line); padding: 16px 20px; margin: 0 0 2rem; background: var(--tint); }
.toc strong { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--navy); }
.toc ol { margin: 8px 0 0; }
.toc a { color: var(--navy); }
.summary-box { background: var(--navy); color: #E6EDF3; padding: 22px 24px; margin: 2rem 0; }
.summary-box h2 { color: var(--white) !important; border: 0 !important; padding: 0 !important; margin-top: 0 !important; font-size: 1.5rem !important; }
.summary-box p, .summary-box li { color: #E6EDF3 !important; }

/* ---------- CTA band ---------- */
.cta-band { background: var(--navy); color: var(--white); padding-block: clamp(44px, 6vw, 72px); border-top: 4px solid var(--orange); }
.cta-band .wrap { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px; align-items: center; }
.cta-band h2 { color: var(--white); margin-bottom: 0.3em; }
.cta-band p { color: #C9D6E2; margin: 0; max-width: 60ch; }
.cta-band .btn-row { margin-top: 0; }
@media (max-width: 820px) { .cta-band .wrap { grid-template-columns: 1fr; } }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: clamp(28px, 5vw, 56px); align-items: start; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-block { border-top: 2px solid var(--navy); padding-top: 14px; margin-bottom: 26px; }
.contact-block h3 { font-size: 1.2rem; margin-bottom: 6px; }
.contact-block p { margin: 0; }
.contact-block .mono { font-size: 0.95rem; }
.copy-btn { font-family: var(--mono); font-size: 0.72rem; background: none; border: 1px solid var(--line); color: var(--blue); padding: 2px 8px; cursor: pointer; margin-left: 8px; vertical-align: middle; }
form.enquiry { border: 1px solid var(--line); padding: clamp(18px, 3vw, 30px); background: var(--white); border-top: 4px solid var(--orange); }
.field { display: grid; gap: 6px; margin-bottom: 16px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 560px) { .field-row { grid-template-columns: 1fr; } }
label { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.04em; color: var(--navy); }
input, select, textarea { font: inherit; font-size: 1.05rem; padding: 11px 12px; border: 1px solid #AEBCC9; border-radius: var(--radius); background: var(--white); color: var(--black); width: 100%; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--blue); outline-offset: 0; border-color: var(--blue); }
textarea { min-height: 120px; resize: vertical; }
.form-note { font-size: 0.92rem; color: var(--ink-3); }
.form-result { margin-top: 16px; border: 1px solid var(--line); background: var(--tint); padding: 16px; }
.form-result pre { white-space: pre-wrap; font-family: var(--mono); font-size: 0.82rem; margin: 8px 0; color: var(--navy); }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-deep); color: #C9D6E2; font-size: 1rem; }
.site-footer .wrap { padding-block: 56px 24px; }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr)); gap: 32px; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 540px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer h4 { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--orange); font-weight: 500; margin-bottom: 12px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 7px; }
.site-footer a { color: #E6EDF3; text-decoration: none; }
.site-footer a:hover { color: var(--orange); }
.footer-logo { height: 54px; width: auto; margin-bottom: 14px; }
.footer-tag { font-style: italic; color: var(--white); }
.social { display: flex; gap: 10px; margin-top: 16px; }
.social a { display: inline-flex; width: 38px; height: 38px; align-items: center; justify-content: center; border: 1px solid rgba(255,255,255,0.3); }
.social a:hover { border-color: var(--orange); }
.social svg { width: 18px; height: 18px; }
.footer-bottom { margin-top: 40px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,0.15); display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; font-family: var(--mono); font-size: 0.75rem; color: #9FB2C4; }

/* ---------- WhatsApp float ---------- */
.wa-float { position: fixed; right: 18px; bottom: calc(18px + env(safe-area-inset-bottom, 0px)); z-index: 60; background: #1F8F4E; color: #FFFFFF; font-family: var(--mono); font-size: 0.78rem; text-decoration: none; padding: 12px 16px; display: inline-flex; align-items: center; gap: 8px; box-shadow: 0 8px 24px rgba(0,0,0,0.2); }
.wa-float:hover { background: #17733E; color: #FFFFFF; }
.wa-float svg { width: 18px; height: 18px; }
@media (max-width: 520px) { .wa-float span { display: none; } }

/* ---------- Developer notes page ---------- */
.notes table { margin-bottom: 1.6rem; }
.notes code { font-family: var(--mono); font-size: 0.85em; background: var(--tint); padding: 1px 5px; word-break: break-word; }
.notes pre { font-family: var(--mono); font-size: 0.82rem; background: var(--navy-deep); color: #E6EDF3; padding: 16px; overflow-x: auto; }
.status { font-family: var(--mono); font-size: 0.72rem; padding: 2px 8px; border: 1px solid var(--line); white-space: nowrap; }
.status.new { border-color: var(--blue); color: var(--blue); }
.status.change { border-color: var(--orange); color: var(--orange-ink); }
.status.remove { border-color: #B03A2E; color: #B03A2E; }

/* ---------- Simple products dropdown (4 core products) ---------- */
.mega.mega-simple { width: min(420px, 92vw); grid-template-columns: 1fr; transform: translateX(-30%); gap: 6px; }
.mega-simple ul { display: grid; gap: 2px; }
.mega-simple a { padding: 9px 10px; border-left: 3px solid transparent; }
.mega-simple a:hover { border-left-color: var(--orange); background: var(--tint); color: var(--navy); }
.mega-simple a strong { display: block; font-size: 1.05rem; color: var(--navy); }
.mega-simple a span { display: block; font-family: var(--mono); font-size: 0.72rem; color: var(--ink-3); margin-top: 2px; }
@media (max-width: 1020px) { .mega.mega-simple { width: 100%; transform: none; grid-template-columns: 1fr; } }

/* ---------- Row cards (other products list) ---------- */
.row-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.row-card { display: grid; grid-template-columns: 180px minmax(0, 1fr) auto; gap: 24px; align-items: center; padding: 18px 0; border-bottom: 1px solid var(--line); text-decoration: none; color: inherit; }
.row-card:hover { background: var(--tint); color: inherit; }
.row-card .media { aspect-ratio: 4 / 3; overflow: hidden; border: 1px solid var(--line); background: var(--blueprint); }
.row-card .media img, .row-card .media svg { width: 100%; height: 100%; object-fit: cover; }
.row-card .body { min-width: 0; }
.row-card .cat { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--orange-ink); }
.row-card h3 { font-size: 1.35rem; margin: 4px 0 4px; }
.row-card p { margin: 0; color: var(--ink-2); font-size: 1.02rem; }
.row-card .more { font-family: var(--mono); font-size: 0.8rem; color: var(--blue); padding-right: 8px; white-space: nowrap; }
@media (max-width: 640px) { .row-card { grid-template-columns: 110px minmax(0, 1fr); gap: 14px; } .row-card .more { grid-column: 2; } }

/* ---------- Tank types (combined tanks page) ---------- */
.types { display: grid; gap: 0; border-top: 1px solid var(--line); }
.type-block { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 22px; padding: 20px 0; border-bottom: 1px solid var(--line); scroll-margin-top: 110px; }
.type-block .figure img { aspect-ratio: 4 / 3; }
.type-block h3 { margin: 0 0 6px; }
.type-block p { color: var(--ink-2); }
@media (max-width: 640px) { .type-block { grid-template-columns: 1fr; } }
.type-block .figure { align-self: start; }
.tbc.typ { border-style: dotted; color: var(--ink-3); border-color: var(--ink-3); }
.type-block.spare { grid-template-columns: 260px minmax(0, 1fr); }
.type-block.spare .table-wrap { margin-top: 10px; margin-bottom: 0; }
@media (max-width: 640px) { .type-block.spare { grid-template-columns: 1fr; } }
img.fit-contain { object-fit: contain !important; background: #FFFFFF; padding: 4%; }