/* ==========================================================================
   TECH FLUID INDUSTRIES — design system
   Palette:  --navy (primary dark) · --amber (hydraulic accent)
             --gray-light (section bg) · --white
   Type:     Montserrat (display) · Inter (body/UI) · JetBrains Mono (data)
   Signature: engineering dimension-line callouts + blueprint grid, used
   consistently for structure (spec sheets, section labels, hero diagram)
   rather than as one-off decoration.
   ========================================================================== */

:root {
  /* ---- color ---- */
  --navy: #0F172A;
  --navy-2: #17233B;   /* elevated panels on dark bg   */
  --navy-3: #1E293B;   /* borders / hairlines on dark  */
  --steel: #334155;    /* secondary text on light bg   */
  --steel-light: #64748B;
  --muted-on-dark: #94A3B8;
  --amber: #F97316;
  --amber-dark: #C2570A;
  --amber-light: #FDBA74;
  --amber-wash: rgba(249, 115, 22, 0.12);
  --gray-light: #F1F5F9;
  --gray-line: #E2E8F0;
  --white: #FFFFFF;

  /* ---- type ---- */
  --font-display: 'Montserrat', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Menlo, monospace;

  /* ---- layout ---- */
  --wrap: 1240px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 18px;
  --section-pad: clamp(64px, 8vw, 116px);
  --shadow-md: 0 12px 32px -12px rgba(15, 23, 42, 0.28);
  --shadow-lg: 0 24px 60px -20px rgba(15, 23, 42, 0.35);
  --ease: cubic-bezier(.165, .84, .44, 1);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--navy);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 800; line-height: 1.15; margin: 0 0 0.5em; letter-spacing: -0.01em; }
p { margin: 0 0 1em; }
button { font-family: inherit; }

:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 2px;
  border-radius: 2px;
}

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--amber); color: var(--navy); font-weight: 700;
  padding: 12px 20px; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

.breadcrumb { margin-bottom: 18px; }
.breadcrumb ol { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; list-style: none; margin: 0; padding: 0; }
.breadcrumb li {
  font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted-on-dark);
  letter-spacing: 0.02em;
}
.breadcrumb a { color: var(--muted-on-dark); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--amber); }
.breadcrumb li[aria-current] { color: var(--amber-light); font-weight: 600; }

/* ---------- type scale ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 0.78rem; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--amber-dark);
  margin-bottom: 14px;
}
.eyebrow::before { content: ''; width: 22px; height: 2px; background: var(--amber); display: inline-block; }
.eyebrow--light { color: var(--amber-light); }

h1 { font-size: clamp(2.2rem, 4.4vw, 3.6rem); color: var(--white); }
h2 { font-size: clamp(1.7rem, 3vw, 2.5rem); }
h3 { font-size: 1.2rem; }
.section-head { max-width: 680px; margin-bottom: 48px; }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head p { color: var(--steel-light); font-size: 1.05rem; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-family: var(--font-body); font-weight: 700; font-size: 0.95rem;
  padding: 15px 26px; border-radius: var(--radius-sm); border: 2px solid transparent;
  cursor: pointer; transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
  white-space: nowrap;
}
.btn .icon { transition: transform 0.2s var(--ease); }
.btn:hover .icon { transform: translateX(3px); }
.btn--amber { background: var(--amber); color: var(--navy); }
.btn--amber:hover { background: var(--amber-dark); color: var(--white); transform: translateY(-2px); box-shadow: 0 14px 28px -10px rgba(249,115,22,0.55); }
.btn--outline { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.35); }
.btn--outline:hover { border-color: var(--amber); color: var(--amber); transform: translateY(-2px); }
.btn--navy { background: var(--navy); color: var(--white); }
.btn--navy:hover { background: var(--navy-2); transform: translateY(-2px); }
.btn--ghost { background: transparent; color: var(--navy); border-color: var(--gray-line); }
.btn--ghost:hover { border-color: var(--amber); color: var(--amber-dark); }
.btn--sm { padding: 11px 18px; font-size: 0.85rem; }
.btn--lg { padding: 18px 32px; font-size: 1.02rem; }
.btn--block { width: 100%; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none !important; }

/* footer's outline button sits on a light-ish panel, needs dark text */
.footer-col--about .btn--outline { color: var(--white); border-color: rgba(255,255,255,0.3); }

.icon { width: 20px; height: 20px; flex-shrink: 0; }
.icon--sm { width: 16px; height: 16px; }
.icon--lg { width: 30px; height: 30px; }

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(15, 23, 42, 0.97);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: box-shadow 0.25s ease;
}
.site-header.is-scrolled { box-shadow: 0 8px 24px -12px rgba(0,0,0,0.4); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 78px; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--white); }
.brand__mark { color: var(--amber); display: inline-flex; }
.brand__name { display: block; font-family: var(--font-display); font-weight: 800; font-size: 1.08rem; letter-spacing: -0.01em; }
.brand__name em { color: var(--amber); font-style: normal; }
.brand__tag { display: block; font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.08em; color: var(--muted-on-dark); text-transform: uppercase; margin-top: 2px; }

.main-nav ul { display: flex; gap: 4px; }
.main-nav a {
  display: block; padding: 10px 16px; color: var(--muted-on-dark);
  font-weight: 600; font-size: 0.93rem; border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
  position: relative;
}
.main-nav a:hover { color: var(--white); background: rgba(255,255,255,0.06); }
.main-nav a.is-active { color: var(--amber); }
.main-nav a.is-active::after {
  content: ''; position: absolute; left: 16px; right: 16px; bottom: 4px; height: 2px; background: var(--amber);
}

.site-header__actions { display: flex; align-items: center; gap: 14px; }
.nav-toggle {
  display: none; background: transparent; border: 1px solid rgba(255,255,255,0.2);
  color: var(--white); width: 44px; height: 44px; border-radius: var(--radius-sm);
  align-items: center; justify-content: center; cursor: pointer;
}

@media (max-width: 960px) {
  .main-nav {
    position: fixed; inset: 78px 0 0 0; background: var(--navy);
    padding: 12px 24px 32px; transform: translateY(-8px); opacity: 0; pointer-events: none;
    transition: opacity 0.22s var(--ease), transform 0.22s var(--ease);
    overflow-y: auto; border-top: 1px solid rgba(255,255,255,0.08);
  }
  .main-nav.is-open { opacity: 1; pointer-events: auto; transform: translateY(0); }
  .main-nav ul { flex-direction: column; gap: 2px; }
  .main-nav a { padding: 15px 12px; font-size: 1.02rem; }
  .site-header__actions .btn--sm span,
  .site-header__actions .btn--sm { }
  .nav-toggle { display: inline-flex; }
  .site-header__actions .btn { padding: 11px 14px; font-size: 0; }
  .site-header__actions .btn .icon { display: none; }
  .site-header__actions .btn::after { content: 'Quote'; font-size: 0.85rem; }
}
@media (max-width: 500px) {
  .brand__tag { display: none; }
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  position: relative; background: var(--navy); color: var(--white);
  overflow: hidden;
  padding: clamp(56px, 9vw, 96px) 0 clamp(64px, 8vw, 100px);
}
.hero::before {
  /* blueprint grid */
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(ellipse 90% 70% at 60% 40%, black 40%, transparent 85%);
  pointer-events: none;
}
.hero::after {
  content: ''; position: absolute; top: -20%; right: -10%; width: 60%; height: 140%;
  background: radial-gradient(circle, rgba(249,115,22,0.16), transparent 65%);
  pointer-events: none;
}
.hero__inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 48px; align-items: center;
}
.hero__content p.lead { color: var(--muted-on-dark); font-size: 1.12rem; max-width: 46ch; margin-bottom: 32px; }
.hero__ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 44px; }

.trust-badges { display: flex; flex-wrap: wrap; gap: 22px 28px; }
.trust-badges li {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 0.82rem; color: var(--muted-on-dark);
}
.trust-badges .icon { color: var(--amber); }

.hero__diagram { position: relative; }
.hero__diagram svg { width: 100%; height: auto; }

@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__diagram { order: -1; max-width: 460px; margin: 0 auto; }
}

/* ==========================================================================
   STATS BAND
   ========================================================================== */
.stats-band { background: var(--gray-light); border-bottom: 1px solid var(--gray-line); }
.stats-band__inner {
  display: grid; grid-template-columns: repeat(4, 1fr);
  padding: 34px 24px;
}
.stats-band__item {
  text-align: center; padding: 0 16px; position: relative;
  display: flex; flex-direction: column; gap: 4px;
}
.stats-band__item + .stats-band__item::before {
  content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 1px; height: 40px; background: var(--gray-line);
}
.stats-band__value {
  font-family: var(--font-mono); font-weight: 700; font-size: clamp(1.5rem, 3vw, 2.1rem);
  color: var(--amber-dark); letter-spacing: -0.01em;
}
.stats-band__label {
  font-size: 0.82rem; color: var(--steel); font-weight: 600;
}
@media (max-width: 760px) {
  .stats-band__inner { grid-template-columns: 1fr 1fr; row-gap: 24px; }
  .stats-band__item:nth-child(3)::before { display: none; }
}

/* ==========================================================================
   PROCESS RAIL (How We Work)
   ========================================================================== */
.process-rail {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 4px;
  list-style: none; counter-reset: step; position: relative;
}
.process-rail::before {
  content: ''; position: absolute; top: 16px; left: 6%; right: 6%; height: 2px;
  background: repeating-linear-gradient(90deg, var(--amber) 0 10px, transparent 10px 18px);
  opacity: 0.55; z-index: 0;
}
.process-rail__item { position: relative; z-index: 1; padding: 0 10px; }
.process-rail__num {
  font-family: var(--font-mono); font-weight: 700; font-size: 0.78rem;
  color: var(--white); background: var(--navy); width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; margin-bottom: 16px;
  border: 3px solid var(--gray-light);
}
.process-rail__icon { color: var(--amber-dark); margin-bottom: 10px; }
.process-rail__item h3 { font-size: 1rem; margin-bottom: 6px; }
.process-rail__item p { font-size: 0.87rem; color: var(--steel-light); margin: 0; }

@media (max-width: 980px) {
  .process-rail { grid-template-columns: 1fr 1fr; gap: 32px 20px; }
  .process-rail::before { display: none; }
}
@media (max-width: 560px) {
  .process-rail { grid-template-columns: 1fr; gap: 28px; }
}

/* ---- hero SVG diagram behaviour ---- */
.diag-draw {
  stroke-dasharray: var(--len, 400);
  stroke-dashoffset: var(--len, 400);
  animation: diagDraw 1.1s var(--ease) forwards;
  animation-delay: var(--d, 0s);
}
@keyframes diagDraw { to { stroke-dashoffset: 0; } }

.diag-fade { opacity: 0; animation: diagFade 0.7s var(--ease) forwards; animation-delay: var(--d, 0s); }
@keyframes diagFade { to { opacity: 1; } }

.diag-gauge-needle {
  transform-origin: var(--gx, 0) var(--gy, 0);
  transform: rotate(-90deg);
  animation: gaugeSweep 1.4s var(--ease) forwards;
  animation-delay: 0.5s;
}
@keyframes gaugeSweep { to { transform: rotate(52deg); } }

.diag-flow {
  stroke-dasharray: 6 7;
  animation: flowMove 1.1s linear infinite;
}
@keyframes flowMove { to { stroke-dashoffset: -26; } }

@media (prefers-reduced-motion: reduce) {
  .diag-draw, .diag-fade, .diag-gauge-needle, .diag-flow { animation: none; stroke-dashoffset: 0; opacity: 1; }
  .diag-gauge-needle { transform: rotate(52deg); }
}

/* ==========================================================================
   SECTIONS — shared
   ========================================================================== */
.section { padding: var(--section-pad) 0; }
.section--light { background: var(--gray-light); position: relative; }
.section--light::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(51,65,85,0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(51,65,85,0.035) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: linear-gradient(to bottom, black, transparent 92%);
}
.section--light > .wrap { position: relative; z-index: 1; }
.section--navy { background: var(--navy); color: var(--white); }
.section--navy .section-head p { color: var(--muted-on-dark); }
.section--tight { padding-top: calc(var(--section-pad) * 0.55); }

/* ---------- why-choose-us ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.feature-card {
  background: var(--white); border: 1px solid var(--gray-line); border-radius: var(--radius-md);
  padding: 30px 26px; transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), border-color 0.25s var(--ease);
  position: relative; overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--amber), var(--amber-light)); transform: scaleX(0); transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.feature-card:hover::before { transform: scaleX(1); }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.feature-card__icon {
  width: 54px; height: 54px; border-radius: var(--radius-sm); background: var(--amber-wash);
  color: var(--amber-dark); display: flex; align-items: center; justify-content: center; margin-bottom: 20px;
}
.feature-card h3 { margin-bottom: 10px; }
.feature-card p { color: var(--steel-light); font-size: 0.95rem; margin: 0; }

@media (max-width: 980px) { .feature-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .feature-grid { grid-template-columns: 1fr; } }

/* ---------- product tabs / grid ---------- */
.tab-list { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 40px; }
.tab-list button {
  background: var(--white); border: 1.5px solid var(--gray-line); color: var(--steel);
  font-weight: 700; font-size: 0.92rem; padding: 12px 22px; border-radius: 999px;
  cursor: pointer; transition: all 0.2s var(--ease);
  display: inline-flex; align-items: center; gap: 10px;
}
.tab-list button .icon { color: var(--steel-light); }
.tab-list button:hover { border-color: var(--amber); color: var(--amber-dark); }
.tab-list button.is-active { background: var(--navy); border-color: var(--navy); color: var(--white); }
.tab-list button.is-active .icon { color: var(--amber); }

.product-panel { display: none; }
.product-panel.is-active { display: block; animation: panelIn 0.4s var(--ease); }
@keyframes panelIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.product-card {
  background: var(--white); border: 1px solid var(--gray-line); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow-md);
}

.product-card__visual {
  background: radial-gradient(circle at 30% 20%, #1c2a47, var(--navy) 65%);
  padding: 28px clamp(28px, 4vw, 48px) 8px;
  position: relative;
}
.product-card__visual::before {
  content: '';
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(ellipse 80% 90% at 50% 40%, black 40%, transparent 90%);
}
.product-card__illus { position: relative; width: 100%; max-width: 420px; height: auto; display: block; margin: 0 auto; }
.product-card__grid {
  display: grid; grid-template-columns: minmax(0,1.1fr) minmax(0,0.9fr); gap: 44px;
  padding: clamp(28px, 4vw, 48px);
}
.product-card__icon {
  width: 68px; height: 68px; border-radius: var(--radius-md); background: var(--navy);
  color: var(--amber); display: flex; align-items: center; justify-content: center; margin-bottom: 22px;
}
.product-card__variants { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0 26px; }
.product-card__variants span {
  font-family: var(--font-mono); font-size: 0.76rem; color: var(--steel);
  background: var(--gray-light); border: 1px solid var(--gray-line); padding: 6px 12px; border-radius: 999px;
}
.spec-sheet { border-top: 1px solid var(--gray-line); }
.spec-sheet__row {
  display: flex; justify-content: space-between; gap: 16px; padding: 14px 0;
  border-bottom: 1px solid var(--gray-line); font-size: 0.92rem;
}
.spec-sheet__row dt { color: var(--steel-light); font-weight: 600; flex-shrink: 0; }
.spec-sheet__row dd { margin: 0; font-family: var(--font-mono); font-weight: 600; color: var(--navy); text-align: right; min-width: 0; overflow-wrap: break-word; }

@media (max-width: 840px) {
  .product-card__grid { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- home product preview cards ---------- */
.product-preview-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.product-preview-card {
  background: var(--navy-2); border: 1px solid var(--navy-3); border-radius: var(--radius-lg);
  color: var(--white); transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
  overflow: hidden;
}
.product-preview-card:hover { transform: translateY(-6px); border-color: var(--amber); }
.product-preview-card__image { aspect-ratio: 400 / 240; overflow: hidden; border-bottom: 1px solid var(--navy-3); }
.product-preview-card__image img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.4s var(--ease); }
.product-preview-card:hover .product-preview-card__image img { transform: scale(1.06); }
.product-preview-card__body { padding: 28px 28px 32px; }
.product-preview-card .product-card__icon { background: rgba(249,115,22,0.14); color: var(--amber); margin-top: -58px; position: relative; z-index: 1; box-shadow: 0 6px 18px -6px rgba(0,0,0,0.5); }
.product-preview-card p { color: var(--muted-on-dark); font-size: 0.94rem; }
.product-preview-card__link { display: inline-flex; align-items: center; gap: 8px; color: var(--amber); font-weight: 700; font-size: 0.9rem; margin-top: 6px; }
@media (max-width: 900px) { .product-preview-grid { grid-template-columns: 1fr; } }

/* ---------- industries ---------- */
.industry-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.industry-card {
  display: block; background: var(--white); border: 1px solid var(--gray-line); border-radius: var(--radius-md);
  text-align: left; transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
  position: relative; overflow: hidden;
}
.industry-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--amber), var(--amber-light)); transform: scaleX(0); transform-origin: left;
  transition: transform 0.3s var(--ease); z-index: 2;
}
.industry-card:hover::before { transform: scaleX(1); }
.industry-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.industry-card__image { aspect-ratio: 400 / 220; overflow: hidden; background: var(--navy); }
.industry-card__image img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.4s var(--ease); }
.industry-card:hover .industry-card__image img { transform: scale(1.06); }
.industry-card__body { padding: 22px 22px 26px; }
.industry-card__icon { color: var(--amber-dark); margin-bottom: 16px; height: 32px; display: flex; align-items: flex-end; }
.industry-card h3 { font-size: 1.02rem; margin-bottom: 8px; }
.industry-card p { color: var(--steel-light); font-size: 0.88rem; margin: 0; }
@media (max-width: 900px) { .industry-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .industry-grid { grid-template-columns: 1fr; } }

/* ---------- quality ---------- */
.quality-layout { display: grid; grid-template-columns: minmax(0,0.9fr) minmax(0,1.1fr); gap: 56px; align-items: start; }
.quality-protocol { background: var(--white); border-radius: var(--radius-lg); border: 1px solid var(--gray-line); overflow: hidden; box-shadow: var(--shadow-md); }
.quality-protocol__head { background: var(--navy); color: var(--white); padding: 20px 26px; display: flex; align-items: center; justify-content: space-between; }
.quality-protocol__head span { font-family: var(--font-mono); font-size: 0.75rem; color: var(--amber-light); }
.quality-protocol dl { margin: 0; }
.quality-protocol .spec-sheet__row { padding: 18px 26px; margin: 0; }
.quality-protocol .spec-sheet__row:last-child { border-bottom: none; }

.quality-points li {
  display: flex; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--gray-line);
}
.quality-points li:first-child { padding-top: 0; }
.quality-points .icon-wrap {
  flex-shrink: 0; width: 40px; height: 40px; border-radius: 50%; background: var(--amber-wash);
  color: var(--amber-dark); display: flex; align-items: center; justify-content: center;
}
.quality-points h3 { font-size: 1.02rem; margin-bottom: 4px; }
.quality-points p { color: var(--steel-light); font-size: 0.92rem; margin: 0; }

@media (max-width: 900px) { .quality-layout { grid-template-columns: 1fr; } }

/* ---------- about page ---------- */
.about-hero { background: var(--navy); color: var(--white); padding: 72px 0 88px; position: relative; overflow: hidden; }
.about-hero::before {
  content: ''; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(ellipse 80% 60% at 20% 30%, black 40%, transparent 85%);
}
.about-hero__inner { position: relative; z-index: 1; max-width: 760px; }
.about-hero p.lead { color: var(--muted-on-dark); font-size: 1.12rem; }

.facility-banner {
  border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 56px;
  box-shadow: var(--shadow-lg); border: 1px solid var(--navy-3);
}
.facility-banner__illus { display: block; width: 100%; height: auto; }

.timeline { display: flex; gap: 0; margin-top: 8px; border-top: 2px solid var(--gray-line); position: relative; }
.timeline__point { flex: 1; padding-top: 28px; position: relative; }
.timeline__point::before {
  content: ''; position: absolute; top: -7px; left: 0; width: 12px; height: 12px; border-radius: 50%;
  background: var(--amber); border: 3px solid var(--white); box-shadow: 0 0 0 2px var(--amber);
}
.timeline__year { font-family: var(--font-mono); font-weight: 700; color: var(--amber-dark); font-size: 1.1rem; display: block; margin-bottom: 6px; }
.timeline__point p { color: var(--steel-light); font-size: 0.94rem; max-width: 32ch; }
@media (max-width: 700px) { .timeline { flex-direction: column; gap: 28px; border-top: none; border-left: 2px solid var(--gray-line); padding-left: 24px; } .timeline__point::before { left: -30px; top: -2px; } }

.capability-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px 32px; }
.capability-list li { display: flex; gap: 14px; align-items: flex-start; padding: 4px 0; }
.capability-list .icon-wrap { color: var(--amber-dark); flex-shrink: 0; margin-top: 2px; }
@media (max-width: 700px) { .capability-list { grid-template-columns: 1fr; } }

/* ==========================================================================
   CONTACT / RFQ FORM
   ========================================================================== */
.contact-layout { display: grid; grid-template-columns: minmax(0,0.85fr) minmax(0,1.15fr); gap: 56px; align-items: start; }
.contact-info__list { margin-top: 28px; display: flex; flex-direction: column; gap: 20px; }
.contact-info__item { display: flex; gap: 16px; align-items: flex-start; }
.contact-info__item .icon-wrap {
  width: 42px; height: 42px; border-radius: var(--radius-sm); background: var(--navy-2); color: var(--amber);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.contact-info__item h3 { font-size: 0.95rem; margin-bottom: 4px; }
.contact-info__item p, .contact-info__item a { color: var(--muted-on-dark); font-size: 0.92rem; }
.contact-info__item a:hover { color: var(--amber); }

.rfq-card { background: var(--white); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); padding: clamp(26px, 4vw, 42px); }
.rfq-card h2 { font-size: 1.5rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-row--3 { grid-template-columns: repeat(4, 1fr); }
.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 600; font-size: 0.88rem; margin-bottom: 7px; color: var(--steel); }
.field .req { color: var(--amber-dark); }
.field input, .field select, .field textarea {
  width: 100%; font-family: var(--font-body); font-size: 0.96rem; color: var(--navy);
  padding: 12px 14px; border: 1.5px solid var(--gray-line); border-radius: var(--radius-sm);
  background: var(--white); transition: border-color 0.2s, box-shadow 0.2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--amber); box-shadow: 0 0 0 4px var(--amber-wash); outline: none;
}
.field textarea { resize: vertical; min-height: 110px; }
.field-error { color: #DC2626; font-size: 0.82rem; margin-top: 6px; display: none; }
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: #DC2626; }
.field.has-error .field-error { display: block; }
.field--honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.field input[type="file"] { padding: 9px 14px; cursor: pointer; }
.field input[type="file"]::file-selector-button {
  font-family: var(--font-body); font-weight: 600; font-size: 0.85rem; color: var(--navy);
  background: var(--gray-light); border: 1px solid var(--gray-line); border-radius: var(--radius-sm);
  padding: 7px 12px; margin-right: 12px; cursor: pointer; transition: background 0.2s;
}
.field input[type="file"]::file-selector-button:hover { background: var(--amber-wash); border-color: var(--amber-light); }

.form-note { font-size: 0.82rem; color: var(--steel-light); margin-top: 4px; }
.form-status {
  display: none; align-items: flex-start; gap: 12px; padding: 16px 18px; border-radius: var(--radius-sm);
  margin-bottom: 22px; font-size: 0.92rem; line-height: 1.5;
}
.form-status.is-visible { display: flex; }
.form-status--success { background: #ECFDF5; color: #065F46; border: 1px solid #A7F3D0; }
.form-status--error { background: #FEF2F2; color: #991B1B; border: 1px solid #FECACA; }

@media (max-width: 900px) { .contact-layout { grid-template-columns: 1fr; } }
@media (max-width: 560px) { .form-row, .form-row--3 { grid-template-columns: 1fr; } }

/* ==========================================================================
   CTA BANNER
   ========================================================================== */
.cta-banner { background: linear-gradient(120deg, var(--navy) 0%, #1c2a47 100%); color: var(--white); padding: 56px 0; }
.cta-banner__inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.cta-banner h2 { margin: 0; font-size: clamp(1.4rem, 2.6vw, 1.9rem); max-width: 34ch; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer { background: var(--navy); color: var(--muted-on-dark); padding-top: 64px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-col h3 { color: var(--white); font-size: 0.92rem; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 18px; }
.footer-col__desc { font-size: 0.9rem; margin: 16px 0 20px; max-width: 34ch; }
.brand--footer { margin-bottom: 4px; }
.footer-links li { margin-bottom: 12px; }
.footer-links a { font-size: 0.92rem; transition: color 0.2s; }
.footer-links a:hover { color: var(--amber); }
.footer-contact li { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 16px; font-size: 0.9rem; }
.footer-contact .icon { color: var(--amber); margin-top: 3px; }
.footer-contact a:hover { color: var(--amber); }

.footer-map { width: 100%; height: 260px; filter: grayscale(0.3) contrast(1.05); }
.footer-map iframe { width: 100%; height: 100%; border: 0; display: block; }

.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; padding: 22px 24px; font-size: 0.82rem; }
.footer-bottom__admin {
  color: var(--muted-on-dark); opacity: 0.75; font-size: 0.8rem; display: inline-flex; align-items: center; gap: 5px;
  transition: opacity 0.2s, color 0.2s;
}
.footer-bottom__admin::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; opacity: 0.6; display: inline-block;
}
.footer-bottom__admin:hover { opacity: 1; color: var(--amber-light); }

@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
  .cta-banner__inner { flex-direction: column; align-items: flex-start; }
}

/* ==========================================================================
   REVEAL-ON-SCROLL (shared utility)
   ========================================================================== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); transition-delay: var(--rd, 0s); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ==========================================================================
   FAQ ACCORDION
   ========================================================================== */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--gray-line); }
.faq-item:first-child { border-top: 1px solid var(--gray-line); }
.faq-item__q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  background: none; border: none; text-align: left; cursor: pointer;
  padding: 20px 4px; font-family: var(--font-display); font-weight: 700; font-size: 1.02rem;
  color: var(--navy);
}
.faq-item__chev { color: var(--amber-dark); flex-shrink: 0; transition: transform 0.25s var(--ease); transform: rotate(90deg); }
.faq-item__q[aria-expanded="true"] .faq-item__chev { transform: rotate(-90deg); }
.faq-item__a { padding: 0 4px 22px; max-width: 68ch; }
.faq-item__a p { color: var(--steel-light); font-size: 0.96rem; margin: 0; line-height: 1.65; }
.section--navy .faq-item__q { color: var(--white); }
.section--navy .faq-item { border-color: var(--navy-3); }
.section--navy .faq-item:first-child { border-top-color: var(--navy-3); }

/* ==========================================================================
   WHATSAPP + BACK-TO-TOP FLOATING BUTTONS
   ========================================================================== */
.float-actions { position: fixed; right: 20px; bottom: 20px; z-index: 85; display: flex; flex-direction: column; gap: 12px; align-items: flex-end; }
.whatsapp-fab, .backtotop-fab {
  width: 52px; height: 52px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 24px -8px rgba(0,0,0,0.4); transition: transform 0.2s var(--ease), opacity 0.25s var(--ease);
  border: none; cursor: pointer;
}
.whatsapp-fab { background: #25D366; color: #fff; }
.whatsapp-fab:hover { transform: translateY(-3px) scale(1.05); }
.backtotop-fab {
  background: var(--navy); color: var(--white); opacity: 0; pointer-events: none; transform: translateY(8px);
}
.backtotop-fab.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.backtotop-fab:hover { background: var(--navy-2); }
.backtotop-fab .icon { transform: rotate(-90deg); }

@media (max-width: 700px) {
  .float-actions { right: 14px; bottom: 84px; }
  .whatsapp-fab, .backtotop-fab { width: 46px; height: 46px; }
}

/* ==========================================================================
   CHATBOT WIDGET
   ========================================================================== */
.chatbot { position: fixed; left: 20px; bottom: 20px; z-index: 95; }

.chatbot-bubble {
  width: 58px; height: 58px; border-radius: 50%; background: var(--amber); color: var(--navy);
  border: none; cursor: pointer; box-shadow: 0 10px 26px -6px rgba(249,115,22,0.55);
  display: flex; align-items: center; justify-content: center; position: relative;
  transition: transform 0.2s var(--ease), background 0.2s;
}
.chatbot-bubble:hover { transform: translateY(-3px) scale(1.04); }
.chatbot-bubble__icon-close { display: none; }
.chatbot-bubble.is-open .chatbot-bubble__icon-open { display: none; }
.chatbot-bubble.is-open .chatbot-bubble__icon-close { display: block; }
.chatbot-bubble.is-open { background: var(--navy); color: var(--white); }

.chatbot-panel {
  position: fixed; left: 20px; bottom: 90px; z-index: 96;
  width: 360px; max-width: calc(100vw - 40px); height: 520px; max-height: 70vh;
  background: var(--white); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
  display: flex; flex-direction: column; overflow: hidden; border: 1px solid var(--gray-line);
}
.chatbot-panel[hidden] { display: none; }

.chatbot-panel__header {
  background: var(--navy); color: var(--white); padding: 14px 16px;
  display: flex; align-items: center; justify-content: space-between; flex-shrink: 0;
}
.chatbot-panel__brand { display: flex; align-items: center; gap: 10px; }
.chatbot-panel__avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--amber); color: var(--navy); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.chatbot-panel__brand strong { display: block; font-size: 0.88rem; }
.chatbot-panel__brand span { display: block; font-size: 0.72rem; color: var(--muted-on-dark); }
.chatbot-panel__close { background: none; border: none; color: var(--muted-on-dark); cursor: pointer; padding: 6px; display: flex; }
.chatbot-panel__close:hover { color: var(--white); }

.chatbot-panel__messages { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.chatbot-msg { max-width: 85%; padding: 10px 14px; border-radius: 14px; font-size: 0.87rem; line-height: 1.5; }
.chatbot-msg--bot { align-self: flex-start; background: var(--gray-light); color: var(--navy); border-bottom-left-radius: 4px; }
.chatbot-msg--bot a { color: var(--amber-dark); font-weight: 600; }
.chatbot-msg--user { align-self: flex-end; background: var(--amber); color: var(--navy); font-weight: 600; border-bottom-right-radius: 4px; }
.chatbot-msg--typing { display: flex; gap: 4px; align-items: center; padding: 12px 16px; }
.chatbot-msg--typing span { width: 6px; height: 6px; border-radius: 50%; background: var(--steel-light); animation: chatbotTyping 1.2s infinite ease-in-out; }
.chatbot-msg--typing span:nth-child(2) { animation-delay: 0.2s; }
.chatbot-msg--typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes chatbotTyping { 0%, 60%, 100% { transform: translateY(0); opacity: 0.5; } 30% { transform: translateY(-4px); opacity: 1; } }

.chatbot-panel__quick-replies { display: flex; flex-wrap: wrap; gap: 8px; padding: 0 16px 12px; flex-shrink: 0; }
.chatbot-panel__quick-replies[hidden] { display: none; }
.chatbot-chip {
  background: var(--white); border: 1.5px solid var(--amber); color: var(--amber-dark);
  border-radius: 999px; padding: 8px 14px; font-size: 0.8rem; font-weight: 700; cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.chatbot-chip:hover { background: var(--amber); color: var(--navy); }

.chatbot-panel__input {
  display: flex; gap: 8px; padding: 12px; border-top: 1px solid var(--gray-line); flex-shrink: 0;
}
.chatbot-panel__input input {
  flex: 1; border: 1.5px solid var(--gray-line); border-radius: 999px; padding: 10px 16px;
  font-family: var(--font-body); font-size: 0.87rem; outline: none;
}
.chatbot-panel__input input:focus { border-color: var(--amber); box-shadow: 0 0 0 3px var(--amber-wash); }
.chatbot-panel__input button {
  width: 40px; height: 40px; border-radius: 50%; background: var(--amber); color: var(--navy);
  border: none; display: flex; align-items: center; justify-content: center; cursor: pointer; flex-shrink: 0;
  transition: background 0.2s;
}
.chatbot-panel__input button:hover { background: var(--amber-dark); color: var(--white); }

@media (max-width: 700px) {
  .chatbot { left: 14px; bottom: 84px; }
  .chatbot-bubble { width: 50px; height: 50px; }
  .chatbot-panel {
    left: 10px; right: 10px; bottom: 78px; width: auto; max-width: none;
    height: min(560px, 72vh);
  }
}

/* ==========================================================================
   MOBILE STICKY CTA BAR
   ========================================================================== */
.mobile-cta-bar {
  display: none;
}
@media (max-width: 700px) {
  .mobile-cta-bar {
    display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 90;
    background: var(--navy); border-top: 1px solid rgba(255,255,255,0.1);
    padding: 10px 12px calc(10px + env(safe-area-inset-bottom, 0px));
    gap: 10px; box-shadow: 0 -8px 24px -8px rgba(0,0,0,0.35);
  }
  .mobile-cta-bar__btn {
    flex: 1; display: flex; align-items: center; justify-content: center; gap: 8px;
    padding: 13px 10px; border-radius: var(--radius-sm); font-weight: 700; font-size: 0.9rem;
  }
  .mobile-cta-bar__btn--call { background: var(--navy-2); color: var(--white); border: 1.5px solid rgba(255,255,255,0.18); }
  .mobile-cta-bar__btn--quote { background: var(--amber); color: var(--navy); }
  body { padding-bottom: 68px; }
}

/* ==========================================================================
   404 / 500
   ========================================================================== */
.error-page { background: var(--navy); color: var(--white); min-height: 70vh; display: flex; align-items: center; }
.error-page__code { font-family: var(--font-mono); color: var(--amber); font-size: 1rem; letter-spacing: 0.1em; }
.error-page h1 { color: var(--white); }
.error-page p { color: var(--muted-on-dark); max-width: 50ch; }