/* ============================================================
   FLUID SCIENCE — Brand Stylesheet
   Aesthetic: Industrial precision. Cool blues. Technical annotations.
   ============================================================ */

:root {
  --ink: #0B1F3A;
  --ink-deep: #050F22;
  --steel: #1B3F8A;          /* Fluid Science brand blue */
  --steel-deep: #122B66;
  --cyan: #0EA5C9;           /* technical accent */
  --cyan-soft: #5EC3D8;

  --paper: #FFFFFF;
  --bone: #F6F8FB;
  --grey-25: #FAFBFD;
  --grey-50: #EEF2F7;
  --grey-100: #DEE4EC;
  --grey-200: #C2CBD6;
  --grey-300: #97A4B5;
  --grey-500: #5B6A7E;
  --grey-700: #34425A;
  --grey-900: #1B2538;

  --display: 'Inter Tight', 'Inter', system-ui, sans-serif;
  --sans: 'Inter', system-ui, -apple-system, sans-serif;
  --mono: 'JetBrains Mono', 'SF Mono', Menlo, monospace;
  --tracked: 0.16em;
  --tracked-wide: 0.24em;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  font-weight: 400;
  color: var(--grey-700);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
::selection { background: var(--steel); color: white; }
a { color: var(--steel); }

/* ============ TYPE ============ */
h1, h2, h3, h4, h5 {
  font-family: var(--display);
  color: var(--ink);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.eyebrow {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: var(--tracked-wide);
  text-transform: uppercase;
  color: var(--cyan);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: '';
  display: inline-block;
  width: 18px; height: 1px;
  background: var(--cyan);
}
.eyebrow.no-tick::before { display: none; }

.tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: var(--tracked);
  text-transform: uppercase;
  color: var(--grey-500);
}

/* ============ LAYOUT ============ */
.container { max-width: 1240px; margin: 0 auto; padding: 0 40px; }
@media (max-width: 760px) { .container { padding: 0 22px; } }

section { padding: 120px 0; position: relative; }
@media (max-width: 760px) { section { padding: 72px 0; } }

.section-title {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(36px, 4.4vw, 56px);
  color: var(--ink);
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin-top: 16px;
  margin-bottom: 24px;
  max-width: 880px;
}
.section-title em { font-style: normal; color: var(--steel); }
.section-title .cyan { color: var(--cyan); font-style: normal; }
.section-intro {
  max-width: 720px;
  color: var(--grey-700);
  font-size: 17px;
  line-height: 1.7;
  margin-bottom: 56px;
}

/* Thin rule under titles */
.rule {
  width: 48px; height: 2px; background: var(--cyan);
  margin: 0 0 28px 0;
}

/* ============ NAV ============ */
nav.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 16px 40px;
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, padding 0.3s;
}
nav.site-nav.scrolled { border-bottom-color: var(--grey-100); padding: 10px 40px; }
.nav-brand { display: flex; align-items: center; gap: 14px; text-decoration: none; }
.nav-brand img { height: 72px; width: auto; transition: height 0.3s; border-radius: 6px; }
nav.site-nav.scrolled .nav-brand img { height: 56px; }
.nav-brand .nav-divider { width: 1px; height: 28px; background: var(--grey-100); }
.nav-brand .nav-meta {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: var(--tracked);
  text-transform: uppercase;
  color: var(--grey-500);
  line-height: 1.3;
}
.nav-brand .nav-meta strong { color: var(--ink); font-weight: 600; }

.nav-links { display: flex; gap: 2px; align-items: center; }
.nav-links a {
  text-decoration: none;
  color: var(--grey-700);
  font-size: 14px;
  font-weight: 500;
  padding: 10px 16px;
  position: relative;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a.active { color: var(--ink); }
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 50%;
  transform: translateX(-50%);
  width: 20px; height: 2px;
  background: var(--cyan);
}
.nav-cta {
  margin-left: 14px;
  background: var(--ink);
  color: white !important;
  padding: 11px 20px !important;
  font-weight: 600 !important;
  font-size: 13px !important;
  letter-spacing: 0.02em;
  border-radius: 2px;
  transition: background 0.2s, transform 0.2s;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { background: var(--steel) !important; }

.menu-toggle { display: none; background: none; border: none; color: var(--ink); cursor: pointer; padding: 6px; }
@media (max-width: 1020px) {
  nav.site-nav { padding: 12px 22px; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    background: white;
    border-top: 1px solid var(--grey-100);
    padding: 12px;
    gap: 0;
    box-shadow: 0 12px 28px rgba(11,31,58,0.08);
  }
  .nav-links.open { display: flex; }
  .nav-links a { width: 100%; padding: 13px 16px; }
  .nav-cta { margin: 6px 0 0 0 !important; text-align: center; }
  .menu-toggle { display: block; }
  .nav-brand .nav-divider, .nav-brand .nav-meta { display: none; }
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 24px;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  border-radius: 2px;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
  letter-spacing: 0.01em;
}
.btn-primary { background: var(--ink); color: white; }
.btn-primary:hover { background: var(--steel); transform: translateY(-1px); box-shadow: 0 10px 24px -10px rgba(27,63,138,0.55); }
.btn-outline { background: transparent; color: var(--ink); border: 1px solid var(--grey-200); }
.btn-outline:hover { border-color: var(--ink); }
.btn-cyan { background: var(--cyan); color: var(--ink-deep); }
.btn-cyan:hover { background: var(--cyan-soft); transform: translateY(-1px); }
.btn .arrow { transition: transform 0.2s; }
.btn:hover .arrow { transform: translateX(4px); }

/* ============ HERO ============ */
.hero {
  position: relative;
  padding: 180px 0 120px;
  background: var(--paper);
  overflow: hidden;
}
.hero::before {
  /* engineering grid */
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(27,63,138,0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(27,63,138,0.05) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse at top right, black 0%, transparent 70%);
          mask-image: radial-gradient(ellipse at top right, black 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  top: -200px; right: -180px;
  width: 720px; height: 720px;
  background: radial-gradient(circle, rgba(14,165,201,0.10) 0%, rgba(27,63,138,0.04) 40%, transparent 70%);
  pointer-events: none;
}
.hero-inner { max-width: 1240px; margin: 0 auto; padding: 0 40px; position: relative; z-index: 1; }
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 72px;
  align-items: center;
}
@media (max-width: 1020px) { .hero-grid { grid-template-columns: 1fr; gap: 48px; } }
@media (max-width: 760px) { .hero { padding: 130px 0 80px; } .hero-inner { padding: 0 22px; } }

.hero h1 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(44px, 6.4vw, 88px);
  line-height: 1.0;
  letter-spacing: -0.035em;
  color: var(--ink);
  margin-top: 22px;
  margin-bottom: 32px;
}
.hero h1 .cyan { color: var(--cyan); }
.hero h1 .steel { color: var(--steel); }
.hero-sub {
  font-size: clamp(16px, 1.3vw, 19px);
  line-height: 1.65;
  color: var(--grey-700);
  margin-bottom: 36px;
  max-width: 560px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }

/* Hero visual — technical bottle diagram + spec sheet */
.hero-visual {
  position: relative;
  aspect-ratio: 1 / 1.2;
  background: var(--ink);
  border-radius: 4px;
  overflow: hidden;
  color: white;
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.hero-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(94,195,216,0.10) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(94,195,216,0.10) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}
.hero-visual::after {
  content: '';
  position: absolute;
  bottom: -200px; left: -100px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(14,165,201,0.25) 0%, transparent 65%);
  pointer-events: none;
}
.hero-visual-top { position: relative; z-index: 1; display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.hero-visual-top .hv-mono { font-family: var(--mono); font-size: 10.5px; letter-spacing: var(--tracked); color: rgba(255,255,255,0.55); text-transform: uppercase; line-height: 1.5; }
.hero-visual-top .hv-mono strong { color: var(--cyan); font-weight: 500; }
.hero-visual-spec {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px 24px;
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 22px;
}
.hero-visual-spec .row .l { font-family: var(--mono); font-size: 10.5px; letter-spacing: var(--tracked); color: rgba(255,255,255,0.5); text-transform: uppercase; margin-bottom: 4px; }
.hero-visual-spec .row .v { font-family: var(--display); font-size: 18px; font-weight: 600; color: white; letter-spacing: -0.01em; }
.hero-visual-spec .row .v .u { font-family: var(--mono); font-size: 11px; color: var(--cyan); margin-left: 4px; font-weight: 400; }

/* Center bottle SVG layer (legacy — only used if the SVG is still in the markup) */
.hv-bottle {
  position: absolute;
  z-index: 1;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 56%;
  opacity: 0.95;
}

/* Photo variant — no box, no cyan glow bleed, no dark panel. The image stands on
   its own at natural aspect ratio with softly rounded corners, and a subtle drop
   shadow for depth against the page background. Applied via .hero-visual.is-photo */
.hero-visual.is-photo {
  background: transparent;
  padding: 0;
  aspect-ratio: auto;
  border-radius: 0;
  overflow: visible;
  box-shadow: none;
  display: block;
}
.hero-visual.is-photo::before,
.hero-visual.is-photo::after { display: none; }
.hero-visual.is-photo .hv-photo {
  position: static;
  width: 100%;
  height: auto;
  max-height: 640px;
  object-fit: contain;
  border-radius: 20px;
  display: block;
  filter: drop-shadow(0 24px 48px rgba(11, 31, 58, 0.18));
}

/* Hero stats strip below */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--grey-100);
  border-bottom: 1px solid var(--grey-100);
}
.hero-stat {
  padding: 28px 24px;
  border-right: 1px solid var(--grey-100);
}
.hero-stat:last-child { border-right: none; }
.hero-stat .l { font-family: var(--mono); font-size: 10.5px; letter-spacing: var(--tracked); text-transform: uppercase; color: var(--grey-500); margin-bottom: 12px; }
.hero-stat .v { font-family: var(--display); font-size: clamp(28px, 3vw, 42px); font-weight: 700; color: var(--ink); letter-spacing: -0.02em; line-height: 1; }
.hero-stat .s { font-family: var(--sans); font-size: 13px; color: var(--grey-700); margin-top: 8px; line-height: 1.5; }
@media (max-width: 900px) { .hero-stats { grid-template-columns: 1fr 1fr; } .hero-stat:nth-child(2n) { border-right: none; } }
@media (max-width: 520px) { .hero-stats { grid-template-columns: 1fr; } .hero-stat { border-right: none; border-bottom: 1px solid var(--grey-100); } .hero-stat:last-child { border-bottom: none; } }

/* ============ PAGE HEADER ============ */
.page-header {
  padding: 160px 0 72px;
  position: relative;
  background: var(--bone);
  border-bottom: 1px solid var(--grey-100);
  overflow: hidden;
}
.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(27,63,138,0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(27,63,138,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse at top right, black 0%, transparent 60%);
          mask-image: radial-gradient(ellipse at top right, black 0%, transparent 60%);
  pointer-events: none;
}
.page-header-inner { max-width: 1240px; margin: 0 auto; padding: 0 40px; position: relative; z-index: 1; }
.page-header h1 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(40px, 5.2vw, 68px);
  color: var(--ink);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-top: 18px;
  margin-bottom: 24px;
  max-width: 920px;
}
.page-header h1 em { font-style: normal; color: var(--steel); }
.page-header h1 .cyan { color: var(--cyan); }
.page-header .lede {
  font-size: 17px;
  line-height: 1.7;
  color: var(--grey-700);
  max-width: 720px;
}
.breadcrumbs {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: var(--tracked);
  text-transform: uppercase;
  color: var(--grey-500);
  margin-bottom: 16px;
}
.breadcrumbs a { color: var(--grey-500); text-decoration: none; transition: color 0.2s; }
.breadcrumbs a:hover { color: var(--cyan); }
.breadcrumbs .sep { margin: 0 10px; color: var(--grey-300); }
@media (max-width: 760px) { .page-header { padding: 120px 0 56px; } .page-header-inner { padding: 0 22px; } }

/* ============ PILLAR GRID ============ */
.pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--grey-100);
  border: 1px solid var(--grey-100);
}
.pillar {
  background: white;
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  border-top: 3px solid transparent;
  transition: border-color 0.25s ease, background 0.25s ease;
}
.pillar:hover { background: var(--bone); border-top-color: var(--cyan); }
.pillar .pillar-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: var(--tracked);
  color: var(--cyan);
  font-weight: 500;
}
.pillar h3 {
  font-family: var(--display);
  font-size: 20px;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.2;
}
.pillar p {
  color: var(--grey-700);
  font-size: 14px;
  line-height: 1.6;
}
@media (max-width: 980px) { .pillars { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .pillars { grid-template-columns: 1fr; } }

/* ============ TECH BLOCK (two-up technical section) ============ */
.tech-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  padding: 80px 0;
  border-bottom: 1px solid var(--grey-100);
}
.tech-block:last-of-type { border-bottom: none; }
.tech-block.flip .tech-visual { order: 2; }
.tech-block .tech-num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: var(--tracked);
  color: var(--cyan);
  margin-bottom: 16px;
}
.tech-block h2 {
  font-family: var(--display);
  font-size: clamp(28px, 3.4vw, 42px);
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 20px;
  line-height: 1.08;
}
.tech-block h2 .cyan { color: var(--cyan); }
.tech-block p {
  color: var(--grey-700);
  font-size: 16px;
  line-height: 1.75;
  margin-bottom: 16px;
}
.tech-block .spec-list {
  list-style: none;
  margin-top: 24px;
  border-top: 1px solid var(--grey-100);
}
.tech-block .spec-list li {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 24px;
  padding: 14px 0;
  border-bottom: 1px solid var(--grey-100);
  font-size: 14px;
}
.tech-block .spec-list .l { font-family: var(--mono); font-size: 11px; letter-spacing: var(--tracked); color: var(--grey-500); text-transform: uppercase; padding-top: 2px; }
.tech-block .spec-list .v { color: var(--ink); font-weight: 500; }
.tech-block .spec-list .v strong { color: var(--steel); font-weight: 600; }
@media (max-width: 900px) {
  .tech-block { grid-template-columns: 1fr; gap: 40px; padding: 56px 0; }
  .tech-block.flip .tech-visual { order: 0; }
  .tech-block .spec-list li { grid-template-columns: 1fr; gap: 4px; }
}

/* Tech visual — blueprint-style frame */
.tech-visual {
  position: relative;
  aspect-ratio: 4 / 5;
  background: var(--ink);
  border-radius: 4px;
  overflow: hidden;
}
.tech-visual.light { background: var(--bone); }
.tech-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(94,195,216,0.12) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(94,195,216,0.12) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}
.tech-visual.light::before {
  background-image:
    linear-gradient(to right, rgba(27,63,138,0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(27,63,138,0.07) 1px, transparent 1px);
}
.tech-visual .tv-label {
  position: absolute;
  top: 24px; left: 24px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: var(--tracked);
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
}
.tech-visual.light .tv-label { color: var(--grey-500); }
.tech-visual .tv-label strong { color: var(--cyan); font-weight: 500; }
.tech-visual .tv-stamp {
  position: absolute;
  bottom: 20px; right: 24px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: var(--tracked);
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  text-align: right;
}
.tech-visual.light .tv-stamp { color: var(--grey-500); }
.tech-visual svg, .tech-visual img {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 70%;
  height: auto;
  max-height: 80%;
}
/* Video variant — fills the dark frame edge-to-edge with the
   tv-label and tv-stamp floating above. Drop video at img/*.mp4. */
.tech-visual.has-video {
  position: relative;
  overflow: hidden;
}
/* Hide the blueprint-grid overlay when a video is present */
.tech-visual.has-video::before { display: none; }
.tech-visual.has-video .tv-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  display: block;
}
.tech-visual.has-video .tv-label,
.tech-visual.has-video .tv-stamp {
  position: absolute;
  z-index: 3;
  color: white;
  text-shadow: 0 1px 6px rgba(0,0,0,0.55);
}
.tech-visual.has-video::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5,15,34,0.35) 0%, rgba(5,15,34,0.0) 35%, rgba(5,15,34,0.0) 65%, rgba(5,15,34,0.4) 100%);
  z-index: 2;
  pointer-events: none;
}

/* Photo variant — fills the frame with a real image */
.tech-visual.photo .tv-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  max-height: none;
  object-fit: cover;
}
.tech-visual.photo::before { opacity: 0.35; mix-blend-mode: overlay; }
.tech-visual.photo .tv-label,
.tech-visual.photo .tv-stamp {
  color: white;
  text-shadow: 0 1px 6px rgba(0,0,0,0.55);
  z-index: 2;
}
.tech-visual.photo .tv-label strong { color: var(--cyan); }

/* Light photo variant — for product shots with white backgrounds */
.tech-visual.photo.light::before { opacity: 0.45; mix-blend-mode: multiply; }
.tech-visual.photo.light .tv-label,
.tech-visual.photo.light .tv-stamp {
  color: var(--grey-700);
  text-shadow: 0 1px 6px rgba(255,255,255,0.85);
}
.tech-visual.photo.light .tv-label strong { color: var(--steel); }
.tech-visual.photo.light .tv-img { object-fit: contain; padding: 28px; }

/* Stacked photo composition — for sections with two reference images */
.tech-visual.stacked {
  display: grid;
  grid-template-rows: 1.4fr 1fr;
  gap: 8px;
  padding: 8px;
  background: var(--ink);
  aspect-ratio: 4 / 5;
}
.tech-visual.stacked::before { display: none; }
.tech-visual.stacked .tv-pane {
  position: relative;
  overflow: hidden;
  border-radius: 2px;
  background: var(--ink-deep);
}
.tech-visual.stacked .tv-pane img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  margin: 0;
  max-height: none;
}
.tech-visual.stacked .tv-pane .pane-label {
  position: absolute;
  top: 14px; left: 14px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: var(--tracked);
  text-transform: uppercase;
  color: white;
  text-shadow: 0 1px 4px rgba(0,0,0,0.7);
  z-index: 2;
}
.tech-visual.stacked .tv-pane .pane-label strong { color: var(--cyan); }
.tech-visual.stacked .tv-stamp {
  position: absolute;
  bottom: 18px; right: 20px;
  z-index: 2;
  color: white;
  text-shadow: 0 1px 4px rgba(0,0,0,0.7);
}

/* ============ PRODUCT GRID ============ */
.products {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--grey-100);
  border: 1px solid var(--grey-100);
}
.product {
  background: white;
  padding: 0;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: background 0.25s ease;
}
.product:hover { background: var(--bone); }
.product:hover .product-figure { background: var(--ink); }
.product-figure {
  position: relative;
  aspect-ratio: 4 / 3;
  background: var(--bone);
  transition: background 0.35s ease;
  border-bottom: 1px solid var(--grey-100);
  overflow: hidden;
}
.product-figure::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(27,63,138,0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(27,63,138,0.06) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
  transition: background-image 0.35s ease, opacity 0.35s ease;
}
.product:hover .product-figure::before {
  background-image:
    linear-gradient(to right, rgba(94,195,216,0.14) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(94,195,216,0.14) 1px, transparent 1px);
}
.product-figure svg, .product-figure img {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 50%;
  height: auto;
  transition: transform 0.4s ease, filter 0.4s ease;
}
/* Photographic product images fill the entire figure — no margin, no grid
   pattern showing through. The image carries the whole frame; the blueprint
   grid (::before) is hidden in this mode. Background is white so any
   transparent/empty area in the product photo blends with the card. */
.product-figure:has(img) {
  background: white;
}
.product-figure:has(img)::before { display: none; }
.product-figure img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  object-fit: contain;
  padding: 12px;
}
.product:hover .product-figure:has(img) { background: white; }
.product:hover .product-figure svg { transform: translateY(-4px); }
.product:hover .product-figure img { transform: translateY(-4px) scale(1.02); }
.product-figure .pf-label {
  position: absolute;
  top: 18px; left: 18px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: var(--tracked);
  text-transform: uppercase;
  color: var(--grey-500);
  transition: color 0.25s ease;
}
.product:hover .product-figure .pf-label { color: var(--cyan); }
.product-body { padding: 24px 26px 28px; }
.product-body .tag-row {
  display: flex; gap: 10px; align-items: center; margin-bottom: 12px;
}
.product-body .tag-row .tag { color: var(--cyan); }
.product-body h3 {
  font-family: var(--display);
  font-size: 22px;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 8px;
  line-height: 1.15;
}
.product-body p {
  color: var(--grey-700);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 16px;
}
.product-body .spec {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--grey-500);
  text-transform: uppercase;
  padding-top: 14px;
  border-top: 1px dashed var(--grey-100);
}
.product-body .spec strong { color: var(--ink); font-weight: 500; }
@media (max-width: 980px) { .products { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .products { grid-template-columns: 1fr; } }

/* ============ ULTRA CLEAN PROTOCOL ============ */
.protocol {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.protocol-step {
  padding: 32px 28px;
  position: relative;
  border-right: 1px solid var(--grey-100);
}
.protocol-step:last-child { border-right: none; }
.protocol-step::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--cyan);
  opacity: 0;
  transition: opacity 0.25s ease;
}
.protocol-step:hover::before { opacity: 1; }
.protocol-step .roman {
  font-family: var(--display);
  font-size: 56px;
  font-weight: 700;
  color: var(--steel);
  line-height: 1;
  letter-spacing: -0.04em;
  margin-bottom: 18px;
}
.protocol-step h4 {
  font-family: var(--display);
  font-size: 18px;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
  line-height: 1.2;
}
.protocol-step p {
  color: var(--grey-700);
  font-size: 14px;
  line-height: 1.6;
}
@media (max-width: 900px) {
  .protocol { grid-template-columns: 1fr 1fr; }
  .protocol-step { border-right: none; border-bottom: 1px solid var(--grey-100); }
  .protocol-step:nth-child(2n+1) { border-right: 1px solid var(--grey-100); }
}
@media (max-width: 560px) {
  .protocol { grid-template-columns: 1fr; }
  .protocol-step { border-right: none !important; }
}

/* ============ INDUSTRY LIST (oil & gas) ============ */
.industries {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--grey-100);
  border: 1px solid var(--grey-100);
}
.industry {
  background: white;
  padding: 32px 28px;
  display: flex; flex-direction: column; gap: 12px;
  transition: background 0.25s ease;
}
.industry:hover { background: var(--bone); }
.industry .ind-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: var(--tracked);
  text-transform: uppercase;
  color: var(--cyan);
}
.industry h3 {
  font-family: var(--display);
  font-size: 22px;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.18;
}
.industry p {
  color: var(--grey-700);
  font-size: 14.5px;
  line-height: 1.6;
}
@media (max-width: 980px) { .industries { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .industries { grid-template-columns: 1fr; } }

/* ============ CTA BAND ============ */
.cta-band {
  background: var(--ink);
  color: white;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(94,195,216,0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(94,195,216,0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.cta-band::after {
  content: '';
  position: absolute;
  top: -200px; right: -150px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(14,165,201,0.16) 0%, transparent 65%);
  pointer-events: none;
}
.cta-band .container {
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  align-items: center;
}
.cta-band h2 {
  font-family: var(--display);
  font-size: clamp(28px, 3.5vw, 44px);
  color: white;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.08;
  margin-bottom: 14px;
}
.cta-band h2 .cyan { color: var(--cyan); }
.cta-band p { color: rgba(255,255,255,0.7); font-size: 16px; line-height: 1.7; max-width: 600px; }
.cta-band .cta-actions { display: flex; gap: 12px; flex-wrap: wrap; justify-content: flex-end; }
@media (max-width: 900px) { .cta-band .container { grid-template-columns: 1fr; } .cta-band .cta-actions { justify-content: flex-start; } }

/* ============ FORM ============ */
.form-grid { display: grid; gap: 18px; max-width: 720px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }
.form-field label {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: var(--tracked);
  text-transform: uppercase;
  color: var(--grey-500);
  margin-bottom: 8px;
  font-weight: 500;
}
.form-field input, .form-field select, .form-field textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--paper);
  border: 1px solid var(--grey-200);
  border-radius: 2px;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { border-color: var(--cyan); }
.form-field textarea { resize: vertical; min-height: 140px; }
.form-success {
  display: none;
  padding: 18px 20px;
  background: rgba(14,165,201,0.10);
  border-left: 3px solid var(--cyan);
  color: var(--ink);
  font-size: 14px;
  border-radius: 2px;
}

/* ============ CONTACT BLOCK ============ */
.contact-block {
  background: var(--bone);
  border-top: 3px solid var(--cyan);
  padding: 40px 44px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.contact-block .col-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: var(--tracked);
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 16px;
}
.contact-block h4 {
  font-family: var(--display);
  font-size: 20px;
  color: var(--ink);
  font-weight: 700;
  margin-bottom: 8px;
}
.contact-block .field { margin-bottom: 14px; }
.contact-block .field-label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: var(--tracked);
  text-transform: uppercase;
  color: var(--grey-500);
  margin-bottom: 4px;
}
.contact-block .field-value, .contact-block .field-value a {
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.5;
}
.contact-block .field-value a:hover { color: var(--cyan); }
.contact-block .address { color: var(--grey-700); font-size: 15px; line-height: 1.8; }
@media (max-width: 760px) { .contact-block { grid-template-columns: 1fr; gap: 28px; padding: 30px 22px; } }

/* ============ FOOTER ============ */
footer {
  background: var(--ink-deep);
  color: rgba(255,255,255,0.6);
  padding: 80px 40px 32px;
  position: relative;
  overflow: hidden;
}
footer::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(94,195,216,0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(94,195,216,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.footer-inner { max-width: 1240px; margin: 0 auto; position: relative; z-index: 1; }
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 56px;
  margin-bottom: 56px;
}
.footer-brand {
  font-family: var(--display);
  font-weight: 700;
  font-size: 22px;
  color: white;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}
.footer-tagline { color: rgba(255,255,255,0.55); font-size: 14px; line-height: 1.75; max-width: 360px; }
.footer-col h5 {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: var(--tracked);
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 18px;
  font-weight: 500;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--cyan); }
.footer-bottom {
  padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex; justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.4);
}
@media (max-width: 900px) { .footer-top { grid-template-columns: 1fr 1fr; gap: 36px; } footer { padding: 56px 22px 24px; } }
@media (max-width: 500px) { .footer-top { grid-template-columns: 1fr; gap: 28px; } }

/* ============ STAT STRIP ============ */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.stat-strip .item {
  padding: 32px 24px;
  border-right: 1px solid var(--grey-100);
}
.stat-strip .item:last-child { border-right: none; }
.stat-strip .item .l {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: var(--tracked);
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 12px;
}
.stat-strip .item .v {
  font-family: var(--display);
  font-size: 40px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.025em;
  line-height: 1;
}
/* 5-column variant — tighten type for narrower columns */
.stat-strip[style*="repeat(5"] .item { padding: 28px 18px; }
.stat-strip[style*="repeat(5"] .item .v { font-size: 30px; }
.stat-strip[style*="repeat(5"] .item .s { font-size: 12.5px; }
.stat-strip .item .s {
  font-size: 13.5px;
  color: var(--grey-700);
  margin-top: 8px;
  line-height: 1.5;
}
@media (max-width: 900px) { .stat-strip { grid-template-columns: 1fr 1fr; } .stat-strip .item:nth-child(2n) { border-right: none; } }
@media (max-width: 520px) { .stat-strip { grid-template-columns: 1fr; } .stat-strip .item { border-right: none; border-bottom: 1px solid var(--grey-100); } .stat-strip .item:last-child { border-bottom: none; } }

/* ============ REVEAL ============ */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

.hero h1, .hero-sub, .hero-actions, .hero-visual, .hero .eyebrow {
  opacity: 0;
  animation: fadeUp 0.7s forwards;
}
.hero .eyebrow { animation-delay: 0.05s; }
.hero h1 { animation-delay: 0.15s; }
.hero-sub { animation-delay: 0.3s; }
.hero-actions { animation-delay: 0.45s; }
.hero-visual { animation-delay: 0.2s; }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============ ANNOTATION (technical callouts) ============ */
.annotate {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: var(--tracked);
  text-transform: uppercase;
  color: var(--grey-500);
}
.annotate .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); display: inline-block; transform: translateY(-1px); }

/* ============ FOOTER CONTACT PERSON ============ */
.footer-contact-person {
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-contact-person .fcp-name {
  color: white;
  font-family: var(--display);
  font-weight: 600;
  font-size: 15px;
  line-height: 1.2;
}
.footer-contact-person .fcp-role {
  color: rgba(255, 255, 255, 0.55);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: var(--tracked);
  text-transform: uppercase;
  margin-top: 4px;
}