/* ============================================================
   George Black Textile Group — industrial design system
   Palette: dark grey #2C3E4E / steel blue #4A7C8C / accent #E67E22
   Fonts: Montserrat (headings) / Inter (body)
   ============================================================ */

:root {
  --ink: #2C3E4E;
  --ink-deep: #1F2D3A;
  --steel: #4A7C8C;
  --steel-light: #6B9AAA;
  --accent: #E67E22;
  --accent-dark: #C8690F;
  --accent-warm: #E0492C;
  --paper: #F7F8F6;
  --white: #FFFFFF;
  --line: rgba(44, 62, 78, 0.16);
  --line-light: rgba(255, 255, 255, 0.14);
  --text: #33424F;
  --text-muted: #5C6B77;
  --danger: #C0392B;
  --ok: #1E8449;

  --font-head: 'Space Grotesk', 'Montserrat', 'Arial Black', sans-serif;
  --font-body: 'Inter', 'Helvetica Neue', sans-serif;

  --radius: 2px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --shadow-card: 0 2px 4px rgba(31, 45, 58, 0.08), 0 12px 28px rgba(31, 45, 58, 0.10);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; background: var(--ink-deep); }

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4 {
  font-family: var(--font-head);
  color: var(--ink);
  line-height: 1.15;
  text-wrap: balance;
}

a { color: var(--steel); }
a:hover { color: var(--accent-dark); }

ul { list-style: none; }

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

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 200;
  background: var(--accent);
  color: var(--white);
  padding: 0.6rem 1.2rem;
  font-family: var(--font-head);
  font-weight: 700;
  text-decoration: none;
}
.skip-link:focus { top: 0.5rem; color: var(--white); }

/* ============================================================
   LOADING SCREEN (Premium Enhancement)
   ============================================================ */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--white) 0%, var(--paper) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.5s ease-out, visibility 0.5s ease-out;
}

.loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader {
  width: 100px;
  height: 100px;
  margin-bottom: 1.5rem;
}

.thread-spinner {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 4px rgba(74, 124, 140, 0.25));
}

.animate-thread {
  animation: thread-flow 2s ease-in-out infinite;
  stroke-dasharray: 100;
  stroke-dashoffset: 0;
}

@keyframes thread-flow {
  0% { stroke-dashoffset: 0; }
  50% { stroke-dashoffset: -50; }
  100% { stroke-dashoffset: -100; }
}

.loader-text {
  font-size: 16px;
  font-weight: 600;
  color: var(--steel);
  letter-spacing: 0.3px;
  animation: pulse-text 2s ease-in-out infinite;
}

@keyframes pulse-text {
  0%, 100% { opacity: 0.8; }
  50% { opacity: 1; }
}

/* ============================================================
   HERO THREAD ANIMATION (Premium Enhancement)
   ============================================================ */
.hero-thread-animation {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2;
}

.thread-primary,
.thread-secondary,
.thread-tertiary {
  stroke-dasharray: 2000;
  stroke-dashoffset: 2000;
  filter: drop-shadow(0 0 6px rgba(74, 124, 140, 0.5));
}

.thread-primary {
  animation: thread-weave 5s ease-in-out infinite;
  opacity: 0.30;
}

.thread-secondary {
  animation: thread-weave 5.5s ease-in-out infinite 0.4s;
  opacity: 0.22;
}

.thread-tertiary {
  animation: thread-weave 6s ease-in-out infinite 0.8s;
  opacity: 0.16;
}

@keyframes thread-weave {
  0% { stroke-dashoffset: 2000; }
  50% { stroke-dashoffset: 0; }
  100% { stroke-dashoffset: -2000; }
}

/* ---------- Hero noise texture (fabric/canvas feel) ---------- */
.hero-noise {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.08;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ============================================================
   SCROLL ANIMATIONS (Premium Enhancement - Subtle)
   ============================================================ */
.reveal-section {
  opacity: 0;
  animation: reveal-fade 0.8s ease-out 0.2s forwards;
}

@keyframes reveal-fade {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-up-item {
  opacity: 0;
  animation: reveal-fade 0.6s ease-out forwards;
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--ink-deep);
  border-bottom: 3px solid var(--accent);
}

.header-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0.85rem var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-mark {
  display: block;
  width: 46px;
  height: 46px;
  flex: none;
}

.brand-name {
  display: block;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--white);
}

.brand-sub {
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--steel-light);
}

.primary-nav ul {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.primary-nav a {
  display: block;
  padding: 0.55rem 0.9rem;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  color: rgba(255, 255, 255, 0.82);
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.primary-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--accent);
  transform: translateX(-50%);
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.primary-nav a:hover {
  color: var(--white);
}

.primary-nav a:hover::after {
  width: 60%;
}

.primary-nav a[aria-current="page"] {
  color: var(--white);
  border-bottom-color: var(--steel);
}

.primary-nav a[aria-current="page"]::after {
  width: 60%;
  background: var(--steel);
}

.primary-nav .nav-cta {
  background: var(--accent);
  color: var(--white);
  margin-left: 0.5rem;
  border-bottom: none;
}
.primary-nav .nav-cta:hover { background: var(--accent-dark); }
.primary-nav .nav-cta[aria-current="page"] { background: var(--accent-dark); }

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 1px solid var(--line-light);
  padding: 10px 9px;
  cursor: pointer;
}

.nav-toggle-bar {
  width: 22px;
  height: 2px;
  background: var(--white);
  transition: transform 0.25s, opacity 0.25s;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  background:
    linear-gradient(135deg, #243747 0%, #2E4658 54%, #426B81 100%);
  color: var(--white);
  overflow: hidden;
}

/* Duotone factory photograph behind the hero (the tactile-material moment) */
.hero-photo {
  position: absolute;
  top: -9%;
  left: 0;
  width: 100%;
  height: 118%;
  z-index: 0;
  background: url("../images/hero-floor.jpg") center/cover no-repeat;
  filter: grayscale(0.5) contrast(1.02) brightness(0.95) saturate(1.05);
  will-change: transform;
}

.hero-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(150deg, var(--steel) 0%, var(--ink-deep) 95%);
  mix-blend-mode: multiply;
  opacity: 0.38;
}

/* Woven-thread texture laid over the photo for the fabric feel */
.hero-weave {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.5;
  background-image:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.05) 0 2px, transparent 2px 7px),
    repeating-linear-gradient(-45deg, rgba(0,0,0,0.06) 0 2px, transparent 2px 7px);
  background-size: 9px 9px;
}

.hero-grid-lines {
  position: absolute;
  inset: 0;
  z-index: 1;
  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: 56px 56px;
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  right: -120px;
  top: -80px;
  width: 420px;
  height: 420px;
  background: var(--steel);
  opacity: 0.18;
  clip-path: polygon(0 0, 100% 0, 100% 100%);
  transform: rotate(12deg);
  pointer-events: none;
  z-index: 1;
}

/* Legibility scrim so the headline stays crisp over the photograph */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(840px 440px at 84% -10%, rgba(232,140,62,0.22) 0%, rgba(232,140,62,0) 62%),
    linear-gradient(90deg, rgba(20,30,38,0.80) 0%, rgba(20,30,38,0.48) 44%, rgba(20,30,38,0.14) 100%),
    linear-gradient(0deg, rgba(20,30,38,0.60) 0%, transparent 40%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 1240px;
  margin: 0 auto;
  padding: clamp(3.5rem, 9vw, 6.5rem) var(--gutter) clamp(2.5rem, 6vw, 4rem);
}

.hero-kicker {
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.2rem;
  animation: rise-in 0.6s ease both;
}

.hero h1 {
  font-size: clamp(2.1rem, 5.4vw, 3.9rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  color: var(--white);
  margin-bottom: 1.4rem;
  animation: rise-in 0.6s 0.1s ease both;
}

.accent-text { color: var(--accent); }

/* Premium gradient headline — only where background-clip:text is supported,
   so the text is never invisible (forced-colors / print / old browsers). */
@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .hero h1 {
    background: linear-gradient(180deg, #FFFFFF 0%, #C7D6DC 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .accent-text {
    background: linear-gradient(180deg, #F4A55F 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .slot-word {
    background: linear-gradient(180deg, #F6A35A 0%, var(--accent) 52%, var(--accent-warm) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }
}

/* Slot-machine headline reel — the window width tracks each word so the
   trailing "fabrics agent" stays snug (word widths measured in em). */
.slot {
  --w-yarn: 2.56em;
  --w-fiber: 2.72em;
  --w-tech: 5.27em;
  display: inline-block;
  width: var(--w-tech);
  height: 1.15em;
  line-height: 1.15;
  overflow: hidden;
  vertical-align: top;
  animation: slot-width 6.6s cubic-bezier(0.16, 1, 0.3, 1) infinite;
}
.slot-reel {
  display: flex;
  flex-direction: column;
  --slot-step: 1.15em;
  transform: translateY(calc(-2 * var(--slot-step)));
  animation: slot-spin 6.6s cubic-bezier(0.16, 1, 0.3, 1) infinite;
}
.slot-word {
  height: 1.15em;
  line-height: 1.15;
  white-space: nowrap;
  color: var(--accent);
}
@keyframes slot-spin {
  0%,  24%  { transform: translateY(0); }
  30%, 57%  { transform: translateY(calc(-1 * var(--slot-step))); }
  63%, 90%  { transform: translateY(calc(-2 * var(--slot-step))); }
  96%, 100% { transform: translateY(calc(-3 * var(--slot-step))); }
}
@keyframes slot-width {
  0%,  24%  { width: var(--w-yarn); }
  30%, 57%  { width: var(--w-fiber); }
  63%, 90%  { width: var(--w-tech); }
  96%, 100% { width: var(--w-yarn); }
}
@media (prefers-reduced-motion: reduce) {
  /* Keep the headline reel moving even when the OS requests reduced motion —
     it's a small, slow, in-place word swap (no parallax/scroll-jank) and a core
     brand cue. !important overrides the global animation-duration reset above. */
  .slot { animation: slot-width 6.6s cubic-bezier(0.16, 1, 0.3, 1) infinite !important; }
  .slot-reel { animation: slot-spin 6.6s cubic-bezier(0.16, 1, 0.3, 1) infinite !important; }
}

/* Visually hidden, still read by screen readers */
.sr-only {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hero-lead {
  max-width: 38rem;
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 2.2rem;
  animation: rise-in 0.6s 0.2s ease both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  animation: rise-in 0.6s 0.3s ease both;
}

@keyframes rise-in {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-stat-strip {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  border-top: 1px solid var(--line-light);
  background: rgba(0, 0, 0, 0.42);
}

.stat {
  padding: 1.4rem var(--gutter);
  border-right: 1px solid var(--line-light);
}
.stat:last-child { border-right: none; }

.stat-num {
  display: block;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.45rem;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.stat-label {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-block;
  padding: 0.8rem 1.7rem;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.15s, box-shadow 0.2s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(31, 45, 58, 0.15); }
.btn:active { transform: scale(0.98) translateY(1px); }

.btn-primary {
  background: var(--accent);
  color: var(--white);
}
.btn-primary:hover { background: var(--accent-dark); color: var(--white); }

.btn-outline {
  background: transparent;
  color: inherit;
  border-color: currentColor;
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

/* ============================================================
   SECTIONS & PAGE SCAFFOLD
   ============================================================ */
.page[hidden] { display: none; }

/* Soft fade/slide as each route becomes visible */
.page:not([hidden]) { animation: page-in 0.3s ease both; }

@keyframes page-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.section {
  max-width: 1240px;
  margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 4.5rem) var(--gutter);
}

.section-title {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 2.2rem;
}

.title-index {
  font-size: 0.85em;
  color: var(--accent);
  font-weight: 700;
}

.section-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
  align-self: center;
}

.page-header {
  background: var(--ink);
  color: var(--white);
  padding: clamp(2.5rem, 6vw, 4rem) var(--gutter);
  border-bottom: 3px solid var(--accent);
}

.page-header h1 {
  max-width: 1240px;
  margin: 0 auto;
  font-size: clamp(1.8rem, 4.5vw, 3rem);
  font-weight: 800;
  text-transform: uppercase;
  color: var(--white);
}

.page-header-sub {
  max-width: 1240px;
  margin: 0.7rem auto 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 1.02rem;
}

.content-narrow { max-width: 880px; }

.content-narrow h2 {
  font-size: 1.45rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 2.4rem 0 1rem;
  padding-left: 0.9rem;
  border-left: 4px solid var(--accent);
}
.content-narrow h2:first-child { margin-top: 0; }

.content-narrow p { margin-bottom: 1.1rem; }

.feature-list { margin: 0.5rem 0 1.5rem; }
.feature-list li {
  position: relative;
  padding: 0.45rem 0 0.45rem 1.8rem;
  border-bottom: 1px dashed var(--line);
}
.feature-list li::before {
  content: "";
  position: absolute;
  left: 0.2rem;
  top: 0.95rem;
  width: 10px;
  height: 10px;
  background: var(--accent);
  clip-path: polygon(0 0, 100% 50%, 0 100%);
}

/* ============================================================
   CAPABILITY CARDS (home)
   ============================================================ */
.capability-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.4rem;
}

.capability-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--steel);
  padding: 1.8rem 1.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  transition: transform 0.2s, box-shadow 0.2s, border-top-color 0.2s;
}

.capability-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-top-color: var(--accent);
}

.cap-num {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: var(--accent);
}

.capability-card h3 {
  font-size: 1.12rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.capability-card p { font-size: 0.94rem; color: var(--text-muted); flex: 1; }

.card-link {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--steel);
}
.card-link::after { content: " \2192"; }
.card-link:hover { color: var(--accent-dark); }

/* ============================================================
   ABOUT SNIPPET (home)
   ============================================================ */
.about-snippet {
  border-top: 1px solid var(--line);
}

.about-snippet-inner { max-width: 780px; }
.about-snippet p { margin-bottom: 1.6rem; color: var(--text-muted); }

/* ============================================================
   PEOPLE / HIGHLIGHT CARDS
   ============================================================ */
.people-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.4rem;
  margin: 1rem 0 1.5rem;
}

.person-card,
.highlight-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 4px solid var(--steel);
  padding: 1.5rem;
}

.person-card { transition: transform 0.25s ease, box-shadow 0.3s ease; }
.person-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px -12px rgba(0, 0, 0, 0.22);
}

/* Initial-avatar for team members (steel→ink gradient, faceted corner) */
.person-avatar {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--steel) 0%, var(--ink) 100%);
  color: var(--white);
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: 0.04em;
  clip-path: polygon(0 0, 100% 0, 100% 78%, 78% 100%, 0 100%);
}

.highlight-card {
  border-left-color: var(--accent);
  margin: 1rem 0 1.5rem;
}

.person-card h3,
.highlight-card h3 {
  font-size: 1.05rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.3rem;
}

.person-role {
  font-family: var(--font-head);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.8rem;
}

.person-contact { font-weight: 600; margin-top: 0.6rem; }

/* ============================================================
   PRODUCTS (dynamic, layout-safe)
   ============================================================ */
.products-status {
  padding: 1.2rem 1.4rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 4px solid var(--steel);
  margin-bottom: 2rem;
}
.products-status[hidden] { display: none; }
.products-status.is-error { border-left-color: var(--danger); color: var(--danger); }

/* Collapsible category (accordion) — keeps a long catalogue scannable */
.product-category {
  margin-bottom: 1rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 3px solid var(--steel);
  box-shadow: var(--shadow-card);
  transition: border-left-color 0.25s ease;
}
.product-category:last-child { margin-bottom: 0; }
.product-category.is-open { border-left-color: var(--accent); }

.category-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.05rem clamp(1rem, 3vw, 1.6rem);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background 0.2s ease;
}
.category-toggle:hover { background: rgba(74, 124, 140, 0.06); }

.category-head {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.category-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.1rem, 2.4vw, 1.55rem);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--ink);
}

.category-count {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--steel);
  padding: 0.2rem 0.65rem;
  white-space: nowrap;
}
.product-category.is-open .category-count { background: var(--accent); }

/* Chevron (pure CSS) — points down when closed, up when open */
.category-chevron {
  flex: none;
  width: 11px;
  height: 11px;
  margin-right: 3px;
  border-right: 2px solid var(--steel);
  border-bottom: 2px solid var(--steel);
  transform: rotate(45deg);
  transition: transform 0.3s ease, border-color 0.25s ease;
}
.product-category.is-open .category-chevron {
  transform: rotate(-135deg);
  border-color: var(--accent);
}

.category-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.category-panel-inner {
  padding: 0.2rem clamp(1rem, 3vw, 1.6rem) 1.6rem;
}

.category-desc {
  color: var(--text-muted);
  max-width: 46rem;
  margin-bottom: 1.4rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

/* Layout safeguard: auto-fill grid never breaks regardless of count */
.supplier-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.4rem;
}

.supplier-card {
  min-height: 280px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--steel);
  padding: 1.6rem 1.5rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  transition: transform 0.25s ease, box-shadow 0.3s ease, border-top-color 0.25s ease;
  transform-style: preserve-3d;
  will-change: transform;
}

/* Hover lift + glow border + layered depth shadow.
   JS adds a subtle mouse-driven 3D tilt via inline transform on top. */
.supplier-card:hover {
  transform: translateY(-8px);
  box-shadow:
    0 15px 35px -10px rgba(0, 0, 0, 0.20),
    0 4px 14px rgba(74, 124, 140, 0.20);
  border-top-color: var(--accent);
}

/* Supplier card top banner — duotone photo or woven steel mono band.
   Negative margins bleed it to the card edges (over the card padding). */
.supplier-banner {
  display: block;
  position: relative;
  height: 150px;
  margin: -1.6rem -1.5rem 1rem;
  overflow: hidden;
}

.supplier-banner.duotone img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.supplier-banner--mono {
  display: grid;
  place-items: center;
  background:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.06) 0 2px, transparent 2px 8px),
    repeating-linear-gradient(-45deg, rgba(0,0,0,0.08) 0 2px, transparent 2px 8px),
    linear-gradient(150deg, var(--steel) 0%, var(--ink) 100%);
  background-size: 10px 10px, 10px 10px, auto;
}

/* Zoom the banner photo when the whole card is hovered */
.supplier-card:hover .supplier-banner.duotone img { transform: scale(1.05); }
.supplier-card:hover .supplier-banner.duotone::after { opacity: 0.16; }

.supplier-logo-fallback {
  display: grid;
  place-items: center;
  width: 72px;
  height: 72px;
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.9rem;
  clip-path: polygon(0 0, 100% 0, 100% 78%, 78% 100%, 0 100%);
}

.supplier-card h3 {
  font-size: 1.08rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.supplier-desc { font-size: 0.94rem; color: var(--text-muted); flex: 1; }

.supplier-meta {
  font-size: 0.86rem;
  border-top: 1px dashed var(--line);
  padding-top: 0.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.supplier-meta .meta-label {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--steel);
  margin-right: 0.4rem;
}

.supplier-link {
  align-self: flex-start;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--accent-dark);
  margin-top: 0.4rem;
}
.supplier-link::after { content: " \2197"; }

.empty-suppliers {
  padding: 2rem 1.5rem;
  background: var(--white);
  border: 1px dashed var(--line);
  color: var(--text-muted);
  text-align: center;
  font-size: 0.95rem;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-layout {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(320px, 1.2fr);
  gap: clamp(2rem, 5vw, 4rem);
}

.contact-details h2,
.contact-form-wrap h2 {
  font-size: 1.35rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 1.2rem;
  padding-left: 0.9rem;
  border-left: 4px solid var(--accent);
}

.contact-details h3 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 1.6rem 0 0.8rem;
}

.contact-details address { font-style: normal; }
.contact-details p { margin-bottom: 0.9rem; }

/* ---------- Location map panel (styled, links to Google Maps) ---------- */
.map-panel {
  position: relative;
  display: block;
  margin-top: 2rem;
  height: 240px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--steel);
  overflow: hidden;
  text-decoration: none;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.3s ease, transform 0.25s ease;
}

.map-panel:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 35px -10px rgba(0, 0, 0, 0.22);
}

.map-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

/* Pulsing location marker */
.map-marker {
  position: absolute;
  top: 45%;
  left: 57.5%;
  width: 20px;
  height: 20px;
  background: var(--accent);
  border: 3px solid var(--white);
  border-radius: 50% 50% 50% 0;
  transform: translate(-50%, -100%) rotate(-45deg);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  z-index: 2;
}

.map-marker::after {
  content: "";
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  opacity: 0;
  animation: map-pulse 2.4s ease-out infinite;
}

@keyframes map-pulse {
  0%   { transform: scale(0.4); opacity: 0.7; }
  100% { transform: scale(1.6); opacity: 0; }
}

/* Address card overlay + CTA */
.map-card {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  z-index: 3;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.7rem 0.95rem;
  background: rgba(255, 255, 255, 0.94);
  border-left: 3px solid var(--accent);
  box-shadow: 0 6px 18px rgba(31, 45, 58, 0.18);
}

.map-card-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--ink);
}

.map-card-sub {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.map-card-cta {
  margin-top: 0.3rem;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel);
  transition: color 0.2s ease;
}

.map-panel:hover .map-card-cta { color: var(--accent-dark); }

/* ---------- Form ---------- */
.contact-form-wrap form {
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--steel);
  padding: clamp(1.4rem, 3vw, 2.2rem);
}

.form-field { margin-bottom: 1.3rem; }

.form-field label {
  display: block;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 0.45rem;
}

.req { color: var(--accent); }

.form-field input,
.form-field textarea {
  width: 100%;
  padding: 0.75rem 0.9rem;
  font-family: var(--font-body);
  font-size: 0.97rem;
  color: var(--text);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.2s, background 0.2s, background-size 0.3s ease, box-shadow 0.2s;
  /* Animated focus underline that grows from the left */
  background-image: linear-gradient(var(--steel), var(--steel));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 2px;
}

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--steel);
  background-color: var(--white);
  background-size: 100% 2px;
  box-shadow: 0 0 0 3px rgba(74, 124, 140, 0.18);
}

/* Floating-label feel: the field label lifts in colour on focus */
.form-field:focus-within label { color: var(--steel); }

.form-field input[aria-invalid="true"],
.form-field textarea[aria-invalid="true"] { border-color: var(--danger); }

.field-error {
  font-size: 0.82rem;
  color: var(--danger);
  margin-top: 0.35rem;
}

/* Honeypot: visually removed, still in DOM for bots */
.hp-field {
  position: absolute !important;
  left: -9999px !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status {
  margin-top: 1rem;
  padding: 0.8rem 1rem;
  font-weight: 600;
  border-left: 4px solid var(--ok);
  background: rgba(30, 132, 69, 0.08);
  color: var(--ok);
}
.form-status.is-error {
  border-left-color: var(--danger);
  background: rgba(192, 57, 43, 0.08);
  color: var(--danger);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--ink-deep);
  color: rgba(255, 255, 255, 0.78);
  border-top: 3px solid var(--accent);
  margin-top: 3rem;
}

.footer-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: clamp(2.5rem, 5vw, 3.5rem) var(--gutter);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
}

.footer-brand { display: flex; gap: 1rem; align-items: flex-start; }
.footer-brand strong { color: var(--white); }

.footer-heading {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--steel-light);
  margin-bottom: 0.9rem;
}

.footer-col li { margin-bottom: 0.45rem; font-size: 0.92rem; }

.footer-col a {
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
}
.footer-col a:hover { color: var(--accent); }

.footer-base {
  border-top: 1px solid var(--line-light);
  padding: 1.1rem var(--gutter);
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.5);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .contact-layout { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .nav-toggle { display: flex; }

  .primary-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--ink-deep);
    border-bottom: 3px solid var(--accent);
    display: none;
  }

  .primary-nav.is-open { display: block; }

  .primary-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem 0 1rem;
  }

  .primary-nav a {
    padding: 0.9rem var(--gutter);
    border-bottom: 1px solid var(--line-light);
  }

  .primary-nav .nav-cta { margin: 0.6rem var(--gutter) 0; text-align: center; }

  .supplier-grid { grid-template-columns: 1fr; }
  .stat { border-right: none; border-bottom: 1px solid var(--line-light); }
}

/* ============================================================
   TACTILE / MATERIAL THEME — duotone photography + woven texture
   ============================================================ */

/* Reusable duotone image treatment (steel/ink), warms toward colour on hover */
.duotone {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--ink-deep);
}
.duotone img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.4) contrast(1.03) saturate(1.06);
  transition: filter 0.5s ease, transform 0.6s ease;
}
.duotone::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(150deg, var(--steel) 0%, var(--ink-deep) 95%);
  mix-blend-mode: multiply;
  opacity: 0.32;
  transition: opacity 0.5s ease;
  pointer-events: none;
}
.duotone:hover img { filter: grayscale(0) contrast(1.03) saturate(1.1); transform: scale(1.03); }
.duotone:hover::after { opacity: 0.16; }

/* Full-bleed atmosphere band (home) */
.atmosphere-band {
  position: relative;
  width: 100%;
  height: clamp(260px, 38vw, 440px);
  margin: 0;
  overflow: hidden;
}
.atmosphere-media { position: absolute; inset: 0; z-index: 0; }
.atmosphere-media img { object-position: center 28%; }
.atmosphere-band::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(90deg, rgba(20,30,38,0.86) 0%, rgba(20,30,38,0.35) 58%, transparent 100%);
  pointer-events: none;
}
.atmosphere-caption {
  position: relative;
  z-index: 2;
  max-width: 1240px;
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.8rem;
}
.atmosphere-kicker {
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
}
.atmosphere-line {
  max-width: 30rem;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.4rem, 3.2vw, 2.3rem);
  line-height: 1.15;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 0.01em;
}

/* Team band (about) — contained within the article */
.team-band { margin: 2.2rem 0; }
.team-media { aspect-ratio: 16 / 7; }
.team-band figcaption {
  margin-top: 0.7rem;
  font-family: var(--font-head);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ============================================================
   ON THE FLOOR — photo slideshow (About)
   ============================================================ */
.gallery-head { margin-bottom: 1.1rem; }
.gallery-kicker {
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.3rem;
}
.gallery-section h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }

.slideshow { position: relative; }
.slides {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-top: 3px solid var(--steel);
  background: var(--ink-deep);
  box-shadow: var(--shadow-card);
}
.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.9s ease;
}
.slide.is-active { opacity: 1; }
.slide img { width: 100%; height: 100%; object-fit: cover; display: block; }
.slide figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 2.6rem 1.5rem 1.1rem;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(0.95rem, 2vw, 1.2rem);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: #fff;
  background: linear-gradient(0deg, rgba(20, 30, 38, 0.84) 0%, rgba(20, 30, 38, 0) 100%);
}
.slide-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 0.9rem;
}
.slide-dot {
  width: 30px;
  height: 4px;
  padding: 0;
  border: 0;
  cursor: pointer;
  background: var(--line);
  transition: background 0.25s ease;
}
.slide-dot:hover { background: var(--steel); }
.slide-dot.is-active { background: var(--accent); }
.slide-dot:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
/* The crossfade is a gentle opacity change — keep it even under reduced motion */
@media (prefers-reduced-motion: reduce) {
  .slide { transition: opacity 0.9s ease !important; }
}

/* Paul's real portrait + matching faceted tiles for the people grid */
.person-photo,
.person-avatar {
  width: 92px;
  height: 92px;
  margin-bottom: 1rem;
  clip-path: polygon(0 0, 100% 0, 100% 78%, 78% 100%, 0 100%);
}
.person-photo { padding: 0; }
.person-photo img { width: 100%; height: 100%; object-fit: cover; }
.person-photo.duotone::after { opacity: 0.4; }
.person-card:hover .person-photo.duotone::after { opacity: 0.18; }
.person-card:hover .person-photo.duotone img { transform: scale(1.05); }
.person-avatar { font-size: 1.7rem; }

/* Woven fabric texture on the capabilities band (the material nod) */
.capabilities {
  background-image:
    repeating-linear-gradient(45deg, rgba(74,124,140,0.045) 0 1px, transparent 1px 6px),
    repeating-linear-gradient(-45deg, rgba(74,124,140,0.045) 0 1px, transparent 1px 6px);
  background-size: 7px 7px;
}

@media (max-width: 640px) {
  .atmosphere-band { height: 300px; }
  .person-photo, .person-avatar { width: 80px; height: 80px; }
}

/* ============================================================
   DISTINCTIVE UPGRADES — header photo, scroll-thread, marquee
   ============================================================ */

/* About header — duotone machinery photo behind the title */
.page-header--photo { position: relative; overflow: hidden; }
.page-header--photo::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: var(--ph-img, url("../images/machinery-hall.jpg"));
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  filter: grayscale(0.55) contrast(1.02) brightness(0.74);
}

/* Per-page header imagery */
.page-header--products { --ph-img: url("../images/hero-floor.jpg"); }
.page-header--spare    { --ph-img: url("../images/machinery-detail.jpg"); }
.page-header--contact  { --ph-img: url("../images/team.jpg"); }
.page-header--photo::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(20,30,38,0.92) 0%, rgba(20,30,38,0.6) 55%, rgba(31,45,58,0.55) 100%),
    linear-gradient(150deg, rgba(74,124,140,0.45), transparent 70%);
  pointer-events: none;
}
.page-header--photo h1,
.page-header--photo .page-header-sub { position: relative; z-index: 2; }

/* Scroll-progress thread — a steel filament that draws across the top */
.scroll-thread {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 300;
  background: rgba(74, 124, 140, 0.12);
  pointer-events: none;
}
.scroll-thread span {
  position: relative;
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--steel), var(--accent));
  box-shadow: 0 0 8px rgba(74, 124, 140, 0.6);
  transition: width 0.1s linear;
}
.scroll-thread span::after {
  content: "";
  position: absolute;
  top: -2.5px;
  right: -1px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px rgba(230, 126, 34, 0.8);
}

/* Represented-brands marquee */
.brand-marquee {
  background: var(--ink-deep);
  color: var(--white);
  padding: 1.4rem 0;
  overflow: hidden;
  border-bottom: 1px solid var(--line-light);
}
.brand-marquee-label {
  text-align: center;
  font-family: var(--font-head);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--steel-light);
  margin-bottom: 1rem;
}
.brand-marquee-track {
  position: relative;
  cursor: grab;
  touch-action: pan-y;            /* let vertical page-scroll through; we handle horizontal */
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.brand-marquee-track.is-grabbing { cursor: grabbing; }
.brand-marquee-list {
  display: flex;
  align-items: center;
  gap: 3.5rem;
  width: max-content;
  will-change: transform;
  /* motion is JS-driven (so it can pause/scrub on drag) — see initBrandMarquee() */
}
.brand-marquee-list li {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.3rem, 3vw, 2rem);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  white-space: nowrap;
  position: relative;
  transition: color 0.3s ease;
}
.brand-marquee-list li::after {
  content: "";
  position: absolute;
  right: -1.9rem;
  top: 50%;
  width: 6px;
  height: 6px;
  background: var(--accent);
  transform: translateY(-50%) rotate(45deg);
  opacity: 0.7;
}
.brand-marquee-list li:hover { color: var(--white); }

/* Home "What We Do" — primary activities as a tidy two-column list */
.activities-summary { margin-top: 1.2rem; }
@media (min-width: 700px) {
  .activities-summary { display: grid; grid-template-columns: 1fr 1fr; column-gap: 2.2rem; }
}

/* Capability-card stagger (moved off inline styles for strict CSP) */
.capability-grid .capability-card:nth-child(1) { animation-delay: 0ms; }
.capability-grid .capability-card:nth-child(2) { animation-delay: 100ms; }
.capability-grid .capability-card:nth-child(3) { animation-delay: 200ms; }
.capability-grid .capability-card:nth-child(4) { animation-delay: 300ms; }