/* ==========================================================================
   LY Industrial — Visual 2.1 Design System
   "Precision engineering aesthetic" — a living engineering drawing.
   Consolidated by AI agent 2026-08-15 (replaces per-page inline styles).
   Palette: graphite + paper + signal yellow + steel blue. Mono numerals.
   ========================================================================== */

:root {
  /* Surfaces */
  --bg:        #0E1113;   /* graphite black */
  --bg-deep:   #090B0D;   /* footer / hero overlay */
  --surface:   #161A1E;   /* dark panel */
  --surface-2: #1C2126;   /* dark panel hover */
  --paper:     #F4F5F4;   /* light "drawing sheet" band */
  --paper-2:   #EDEFEC;   /* paper alt */
  --card:      #FFFFFF;   /* light card */

  /* Lines */
  --line:        rgba(255,255,255,0.10);
  --line-strong: rgba(255,255,255,0.18);
  --line-ink:    #E1E4E2;  /* hairline on paper */
  --line-ink-2:  #CFD4D1;

  /* Text */
  --text:    #E8ECEF;
  --muted:   #9AA4AB;
  --ink:     #12151A;     /* text on paper */
  --ink-mut: #5A646D;

  /* Accent */
  --accent:     #F2B63D;  /* signal yellow */
  --accent-ink: #14120B;
  --accent-soft: rgba(242,182,61,0.14);
  --steel:      #7FA8C9;  /* steel blue */
  --steel-soft: rgba(127,168,201,0.16);
  --copper:     #C66A32;  /* secondary warm */

  /* Geometry */
  --radius: 2px;
  --radius-sm: 1px;
  --max: 1180px;
  --shadow: 0 18px 50px rgba(0,0,0,0.35);
  --shadow-card: 0 1px 0 rgba(0,0,0,0.02), 0 8px 24px rgba(0,0,0,0.06);

  /* Type */
  --font-sans: "Space Grotesk", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, p { margin-top: 0; }
figure { margin: 0; }
::selection { background: var(--accent); color: var(--accent-ink); }

/* ---------- Section scaffolding ---------- */
section { position: relative; }
.section-inner {
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
  padding: 96px 0;
}
.dark-band {
  background:
    radial-gradient(circle at 14% -10%, rgba(127,168,201,0.08), transparent 42%),
    linear-gradient(180deg, #0E1113 0%, #101417 100%);
  color: var(--text);
}
.light-band {
  background:
    linear-gradient(180deg, #F4F5F4 0%, #F0F2EF 100%);
  color: var(--ink);
}
/* faint blueprint grid on dark bands */
.dark-band::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.018) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

/* ---------- Section head (title + kicker + dimension rule) ---------- */
.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.62fr);
  gap: 48px;
  align-items: end;
  margin-bottom: 44px;
  border-top: 1px solid var(--line-strong);
  padding-top: 22px;
}
.light-band .section-head { border-top-color: var(--line-ink-2); }
.section-head p { margin: 0; color: var(--muted); font-size: 0.98rem; }
.light-band .section-head p { color: var(--ink-mut); }

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}
.light-band .section-kicker { color: var(--copper); }
/* tick-mark ruler before kicker */
.section-kicker::before {
  content: "";
  width: 30px; height: 8px;
  background: repeating-linear-gradient(90deg, currentColor 0 1px, transparent 1px 5px);
  opacity: 0.9;
}
.section-head h2 {
  margin: 0;
  font-size: clamp(1.9rem, 3.4vw, 2.7rem);
  line-height: 1.12;
  letter-spacing: -0.015em;
  font-weight: 600;
}

/* ---------- Header / nav ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(14,17,19,0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}
.nav {
  width: min(var(--max), calc(100% - 48px));
  min-height: 72px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand { display: flex; align-items: center; gap: 14px; min-width: 190px; }
.brand img { width: 168px; height: 40px; object-fit: contain; object-position: left center; }
.nav-links {
  display: flex; align-items: center; justify-content: flex-end; gap: 22px;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--muted); white-space: nowrap;
}
.nav-links a {
  position: relative; padding: 8px 0;
  transition: color 160ms ease;
}
.nav-links a:not(.header-cta)::after {
  content: ""; position: absolute; left: 0; bottom: 2px;
  width: 0; height: 2px; background: var(--accent);
  transition: width 200ms ease;
}
.nav-links a:hover, .nav-links a:focus-visible { color: var(--text); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--text); }
.header-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 18px; margin-left: 4px;
  background: var(--accent); color: var(--accent-ink);
  font-weight: 700; letter-spacing: 0.04em; text-transform: none;
  border-radius: var(--radius);
  transition: background 160ms ease, transform 160ms ease;
}
.header-cta:hover { background: #ffcf6b; transform: translateY(-1px); color: var(--accent-ink); }
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: transparent;
  color: var(--text);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  margin: 5px 0;
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}
.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero (home) ---------- */
.hero {
  position: relative; min-height: clamp(720px, 86vh, 860px);
  display: grid; align-items: end; overflow: hidden; isolation: isolate;
  background: var(--bg-deep);
}
.hero-bg {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center; z-index: -2;
  filter: saturate(0.72) contrast(1.04) brightness(0.9);
}
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(90deg, rgba(9,11,13,0.96) 0%, rgba(9,11,13,0.82) 42%, rgba(9,11,13,0.32) 78%, rgba(9,11,13,0.55) 100%),
    linear-gradient(0deg, rgba(9,11,13,0.98) 0%, rgba(9,11,13,0.1) 42%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  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: 64px 64px;
  mask-image: linear-gradient(90deg, black 0%, black 40%, transparent 92%);
  -webkit-mask-image: linear-gradient(90deg, black 0%, black 40%, transparent 92%);
  pointer-events: none;
}
.hero-inner {
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
  padding: 142px 0 46px;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  margin: 0 0 22px; color: var(--accent);
  font-size: 0.74rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase;
}
.eyebrow::before {
  content: ""; width: 36px; height: 2px; background: var(--accent);
}
.hero h1 {
  max-width: 800px; margin-bottom: 22px;
  font-size: clamp(3rem, 4.8vw, 4rem);
  line-height: 1.02; letter-spacing: -0.025em; font-weight: 600;
}
.hero-lede {
  max-width: 640px; margin-bottom: 36px;
  color: #C6CDD2; font-size: 1.15rem; line-height: 1.7;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 42px; }

/* spec bar metrics */
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
  border-left: 1px solid var(--line);
}
.metric {
  padding: 20px 18px 18px;
  border-right: 1px solid var(--line);
  background: rgba(14,17,19,0.6);
}
.metric strong {
  display: block; color: var(--text);
  font-family: var(--font-mono);
  font-size: 1.9rem; line-height: 1; font-weight: 600; letter-spacing: -0.02em;
}
.metric span {
  display: block; margin-top: 10px; color: var(--muted);
  font-size: 0.78rem; letter-spacing: 0.02em; line-height: 1.4;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 50px; padding: 13px 22px;
  border: 1px solid var(--line-strong); border-radius: var(--radius);
  font-weight: 700; font-size: 0.95rem; letter-spacing: 0.02em;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease, color 160ms ease;
}
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: #ffcf6b; transform: translateY(-1px); }
.btn-secondary { background: rgba(255,255,255,0.05); border-color: var(--line-strong); color: var(--text); }
.btn-secondary:hover { background: rgba(255,255,255,0.1); border-color: var(--text); transform: translateY(-1px); }
.light-band .btn-secondary { background: transparent; border-color: var(--line-ink-2); color: var(--ink); }
.light-band .btn-secondary:hover { border-color: var(--ink); background: rgba(18,21,26,0.04); }
.inline-cta { margin-top: 24px; }

/* ---------- Intro grid (home About) ---------- */
.intro-grid {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, 0.62fr);
  gap: 48px; align-items: stretch;
}
.intro-copy { display: grid; align-content: center; gap: 22px; border-top: 3px solid var(--accent); padding-top: 26px; }
.intro-copy h2 { font-size: clamp(1.9rem, 3.2vw, 2.6rem); line-height: 1.12; letter-spacing: -0.015em; font-weight: 600; }
.intro-copy p { color: #C9D0D5; font-size: 1.03rem; }
.logo-panel {
  display: grid; align-content: center; min-height: 320px; padding: 34px;
  border: 1px solid var(--line); background: var(--surface);
}
.logo-panel img { width: 100%; margin-bottom: 28px; }
.panel-note { margin: 0; color: var(--muted); font-size: 0.92rem; }

/* ---------- Lists ---------- */
.cap-list { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px; margin: 0; padding: 0; list-style: none; }
.cap-list li {
  padding: 12px 14px; background: rgba(255,255,255,0.05);
  border-left: 3px solid var(--accent); color: #E6EBEE; font-weight: 600; font-size: 0.95rem;
}
.mini-list { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; color: #C9D0D5; font-size: 0.9rem; }
.mini-list li { display: flex; gap: 9px; }
.mini-list li::before { content: ""; flex: 0 0 6px; width: 6px; height: 6px; margin-top: 9px; background: var(--accent); }
.spec-list { display: grid; gap: 12px; margin: 22px 0 0; padding: 0; list-style: none; }
.spec-list li { display: flex; gap: 12px; color: inherit; }
.spec-list li::before { content: ""; flex: 0 0 8px; width: 8px; height: 8px; margin-top: 8px; background: var(--accent); }
.light-band .spec-list li::before { background: var(--copper); }
.check-list { display: grid; gap: 11px; margin: 22px 0 0; padding: 0; list-style: none; }
.check-list li { display: flex; gap: 10px; }
.check-list li::before { content: ""; flex: 0 0 8px; width: 8px; height: 8px; margin-top: 9px; background: var(--accent); }

/* ---------- Card grids (dark) ---------- */
.detail-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }
.detail-card {
  padding: 26px; border: 1px solid var(--line); background: var(--surface);
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}
.detail-card:hover { transform: translateY(-2px); border-color: var(--line-strong); background: var(--surface-2); }
.detail-card h3 { margin-bottom: 12px; font-size: 1.18rem; font-weight: 600; letter-spacing: -0.01em; }
.detail-card p { margin-bottom: 0; color: var(--muted); font-size: 0.94rem; }
.detail-card .btn { margin-top: 18px; }

.strength-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; }
.strength-card {
  min-height: 210px; padding: 26px;
  border: 1px solid var(--line); border-top: 3px solid var(--accent);
  background: var(--surface);
  transition: transform 160ms ease, border-color 160ms ease;
}
.strength-card:hover { transform: translateY(-2px); border-color: var(--line-strong); }
.strength-card .num {
  display: inline-grid; place-items: center; width: 40px; height: 40px; margin-bottom: 22px;
  background: var(--bg-deep); color: var(--accent);
  font-family: var(--font-mono); font-size: 0.9rem; font-weight: 600;
}
.strength-card h3 { margin-bottom: 12px; font-size: 1.16rem; font-weight: 600; }
.strength-card p { margin: 0; color: var(--muted); font-size: 0.93rem; }

.capability-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }
.capability-card { overflow: hidden; border: 1px solid var(--line); background: var(--surface); transition: transform 160ms ease, border-color 160ms ease; }
.capability-card:hover { transform: translateY(-2px); border-color: var(--line-strong); }
.capability-card figure { aspect-ratio: 4/3; overflow: hidden; background: #1B2025; }
.capability-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 400ms ease; }
.capability-card:hover img { transform: scale(1.04); }
.capability-card .content { padding: 24px; }
.tag {
  display: inline-block; margin-bottom: 12px; color: var(--accent);
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
}
.capability-card h3 { margin-bottom: 12px; font-size: 1.24rem; font-weight: 600; }
.capability-card p { margin-bottom: 16px; color: var(--muted); font-size: 0.93rem; }
.capability-card .text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-size: 0.86rem;
  font-weight: 600;
}
.capability-card .text-link::after { content: "→"; color: var(--accent); }
.capability-card .text-link:hover { color: var(--accent); }

.proof-note {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-top: 20px;
  padding: 16px 18px;
  border-left: 3px solid var(--accent);
  background: rgba(255,255,255,0.04);
  color: var(--muted);
  font-size: 0.9rem;
}
.proof-note strong { color: var(--text); }

.wire-brand-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }
.wire-brand-card { overflow: hidden; border: 1px solid var(--line-ink); background: var(--card); box-shadow: var(--shadow-card); transition: transform 160ms ease, box-shadow 160ms ease; }
.wire-brand-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.wire-photo-pair { display: grid; gap: 1px; background: var(--line-ink-2); }
.wire-brand-card figure { aspect-ratio: 4/3; overflow: hidden; background: #11161A; }
.wire-brand-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 400ms ease; }
.wire-brand-card:hover img { transform: scale(1.04); }
.brand-copy { padding: 24px; color: var(--ink); }
.brand-copy h3 { margin-bottom: 10px; font-size: 1.22rem; font-weight: 600; }
.brand-copy p { margin-bottom: 16px; color: var(--ink-mut); font-size: 0.93rem; }
.brand-badges { display: flex; flex-wrap: wrap; gap: 8px; }
.brand-badges span {
  padding: 6px 10px; background: var(--ink); color: #fff;
  font-family: var(--font-mono); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase;
}

.applications { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 12px; margin-top: 8px; }
.application { min-height: 120px; padding: 20px; border: 1px solid var(--line-ink); border-top: 3px solid var(--ink); background: var(--card); box-shadow: var(--shadow-card); }
.application strong { display: block; margin-bottom: 8px; font-size: 0.98rem; }
.application span { color: var(--ink-mut); font-size: 0.88rem; }

/* ---------- Process steps ---------- */
.process { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; }
.process-step {
  min-height: 230px; padding: 28px 24px;
  border: 1px solid var(--line-ink); border-top: 3px solid var(--ink); background: var(--card); box-shadow: var(--shadow-card);
}
.process-step span {
  display: block; margin-bottom: 26px; color: var(--copper);
  font-family: var(--font-mono); font-size: 0.78rem; font-weight: 600; letter-spacing: 0.1em;
}
.process-step h3 { margin-bottom: 12px; font-size: 1.14rem; font-weight: 600; }
.process-step p { margin: 0; color: var(--ink-mut); font-size: 0.92rem; }

/* ---------- Quality ---------- */
.quality-wrap { display: grid; grid-template-columns: minmax(300px, 0.72fr) minmax(0, 1fr); gap: 44px; align-items: center; }
.quality-image { aspect-ratio: 4/5; overflow: hidden; border: 1px solid var(--line); }
.quality-image img { width: 100%; height: 100%; object-fit: cover; }
.quality-copy h2 { margin-bottom: 16px; font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 600; }
.quality-copy p { color: var(--muted); }
.quality-points { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; margin-top: 28px; }
.quality-point { min-height: 116px; padding: 20px; border: 1px solid var(--line); background: rgba(255,255,255,0.04); }
.quality-point strong { display: block; margin-bottom: 7px; color: var(--text); }
.quality-point span { color: var(--muted); font-size: 0.9rem; }

/* ---------- Equipment / tables ---------- */
.equipment-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 0.4fr); gap: 24px; align-items: start; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line-ink); background: var(--card); box-shadow: var(--shadow-card); }
table { width: 100%; border-collapse: collapse; min-width: 620px; color: var(--ink); font-size: 0.92rem; }
th, td { padding: 15px 16px; text-align: left; border-bottom: 1px solid var(--line-ink-2); vertical-align: top; }
thead th {
  background: var(--ink); color: #fff;
  font-family: var(--font-mono); font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
}
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: #FAFBFA; }
td:last-child { font-weight: 600; color: var(--copper); }
.materials { padding: 26px; border: 1px solid var(--line); background: var(--surface); color: var(--text); }
.materials h3 { margin-bottom: 16px; font-size: 1.18rem; font-weight: 600; }
.material-tags { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 22px; }
.material-tags span {
  padding: 8px 11px; border: 1px solid var(--line-strong); background: rgba(255,255,255,0.05);
  color: #DCE3E8; font-family: var(--font-mono); font-size: 0.82rem; letter-spacing: 0.02em;
}
.materials p { margin: 0; color: var(--muted); font-size: 0.9rem; }

/* ---------- Split panel / image frame ---------- */
.split-panel { display: grid; grid-template-columns: minmax(0, 0.85fr) minmax(320px, 0.65fr); gap: 44px; align-items: center; }
.split-panel.reverse { grid-template-columns: minmax(320px, 0.65fr) minmax(0, 0.85fr); }
.image-frame { overflow: hidden; border: 1px solid var(--line); background: #11161A; }
.image-frame img { width: 100%; height: 100%; min-height: 340px; object-fit: cover; filter: saturate(0.85) contrast(1.03); }

/* ---------- Quote / contact ---------- */
.quote { overflow: hidden; background: radial-gradient(circle at 12% 0%, rgba(127,168,201,0.08), transparent 34%), var(--bg-deep); color: var(--text); }
.quote .section-inner { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(300px, 0.54fr); gap: 40px; align-items: stretch; }
.quote-card {
  padding: 36px; border: 1px solid var(--line); background:
    linear-gradient(135deg, rgba(242,182,61,0.1), rgba(127,168,201,0.08)), var(--surface);
}
.quote h2 { margin-bottom: 16px; font-size: clamp(1.7rem, 2.6vw, 2.2rem); font-weight: 600; }
.quote p { color: #C9D0D5; }
.quote-list { display: grid; gap: 11px; margin: 24px 0 0; padding: 0; list-style: none; color: #E6EBEE; font-size: 0.94rem; }
.quote-list li { display: flex; gap: 10px; }
.quote-list li::before { content: ""; flex: 0 0 8px; width: 8px; height: 8px; margin-top: 8px; background: var(--accent); }
.contact-card { border-top: 3px solid var(--accent); background: var(--card); color: var(--ink); padding: 30px; box-shadow: var(--shadow); align-self: stretch; }
.contact-card h3 { margin-bottom: 18px; font-size: 1.24rem; font-weight: 600; }
.contact-row { display: grid; gap: 4px; padding: 13px 0; border-top: 1px solid var(--line-ink-2); }
.contact-row span { color: var(--ink-mut); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.contact-row a, .contact-row strong { color: var(--ink); font-size: 0.98rem; overflow-wrap: anywhere; }

/* ---------- Forms (RFQ) ---------- */
.form-card { padding: 34px; border: 1px solid var(--line); background: var(--surface); }
.form-card h2 { margin-bottom: 8px; font-size: 1.7rem; font-weight: 600; }
.form-card > p { color: var(--muted); font-size: 0.95rem; }
.field-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; margin-top: 24px; }
.form-field { display: grid; gap: 7px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { color: #AEB7BD; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.form-field input, .form-field textarea, .form-field select {
  width: 100%; border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  background: var(--bg-deep); color: var(--text); padding: 12px 13px;
  font: inherit; font-size: 0.95rem; outline: none;
  transition: border-color 160ms ease, background 160ms ease;
}
.form-field input:focus, .form-field textarea:focus, .form-field select:focus { border-color: var(--accent); background: #0B0D0F; }
.form-field textarea { min-height: 130px; resize: vertical; }
.form-field input[type="file"] { padding: 10px; color: var(--muted); }
.form-note { margin: 18px 0 0; color: #8B949B; font-size: 0.86rem; line-height: 1.6; }
.form-note a { color: var(--accent); font-weight: 600; }

/* ---------- Interior page intro ---------- */
.page-intro { background: var(--bg-deep); color: var(--text); border-bottom: 1px solid var(--line); }
.page-intro .hero-inner { padding: 148px 0 60px; }
.breadcrumb {
  display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px;
  color: var(--muted); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
}
.breadcrumb a { color: #C6CDD2; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span::before { content: "/"; margin-right: 8px; color: var(--muted); }
.page-intro h1 { max-width: 900px; margin-bottom: 20px; font-size: clamp(2.1rem, 4.2vw, 3.4rem); line-height: 1.08; letter-spacing: -0.015em; font-weight: 600; }
.page-lede { max-width: 780px; color: #C6CDD2; font-size: 1.08rem; line-height: 1.7; }

/* ---------- About specific ---------- */
.about-intro { background: var(--bg); color: var(--text); padding: 88px 0; }
.about-layout { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 56px; align-items: start; }
.about-article { max-width: 860px; }
.about-article h2 { margin-bottom: 24px; font-size: clamp(2.2rem, 4vw, 3.4rem); line-height: 1.02; letter-spacing: -0.02em; font-weight: 600; }
.about-article p { color: #C9D0D5; font-size: 1.02rem; line-height: 1.8; margin: 0 0 20px; }
.about-lead { color: var(--text); font-size: 1.22rem; line-height: 1.65; }
.about-profile {
  position: sticky; top: 108px; border-top: 3px solid var(--accent);
  border: 1px solid var(--line); border-top: 3px solid var(--accent);
  background: var(--surface); padding: 30px;
}
.profile-label, .profile-line span { display: block; color: var(--muted); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; }
.about-profile h3 { margin: 16px 0 8px; font-size: 1.6rem; font-weight: 600; }
.about-profile p { color: var(--text); margin-bottom: 22px; font-weight: 600; }
.profile-line { border-top: 1px solid var(--line-strong); padding: 16px 0 0; margin-top: 16px; }
.profile-line a, .profile-line strong { color: var(--text); font-weight: 600; }
.about-values { background: var(--bg); color: var(--text); padding: 84px 0 92px; border-top: 1px solid var(--line); }
.about-text-grid { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr); gap: 64px; align-items: start; }
.about-text-grid h2 { font-size: clamp(1.9rem, 3vw, 2.6rem); line-height: 1.1; letter-spacing: -0.02em; font-weight: 600; }
.about-copy p { color: #C9D0D5; font-size: 1.02rem; line-height: 1.8; margin: 0 0 18px; }
.about-copy strong { color: var(--text); font-weight: 600; }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--line); background: var(--bg-deep); color: var(--muted); }
.footer-inner {
  width: min(var(--max), calc(100% - 48px)); margin: 0 auto; padding: 40px 0;
  display: flex; align-items: flex-start; justify-content: space-between; gap: 40px;
  font-size: 0.88rem;
}
.footer-left { display: flex; flex-direction: column; gap: 20px; max-width: 320px; width: 100%; }
.footer-inner img { width: 150px; height: 36px; object-fit: contain; object-position: left center; opacity: 0.9; }
.footer-inner a { color: var(--text); font-weight: 600; }
.footer-inner a:hover { color: var(--accent); }

/* ---------- TBC placeholder marker (review-only highlight) ---------- */
span[style*="border-bottom:1px dashed"] {
  /* keep dashed underline from inline style; nothing extra needed */
}

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .nav { min-height: 68px; padding: 10px 0; gap: 12px; }
  .brand { min-width: 0; }
  .brand img { width: 154px; height: 36px; }
  .nav-toggle { display: block; margin-left: auto; flex: 0 0 44px; }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
    width: 100%;
    max-height: 0;
    padding: 0 max(24px, calc((100% - var(--max)) / 2));
    overflow: hidden;
    background: rgba(9,11,13,0.98);
    border-bottom: 1px solid transparent;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: max-height 240ms ease, opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
  }
  .nav-open .nav-links {
    max-height: 620px;
    padding-top: 12px;
    padding-bottom: 18px;
    border-bottom-color: var(--line-strong);
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .nav-links a {
    padding: 14px 12px;
    border-bottom: 1px solid var(--line);
  }
  .nav-links a:not(.header-cta)::after { display: none; }
  .nav-links .header-cta {
    justify-content: center;
    grid-column: 1 / -1;
    margin: 14px 0 0;
    border-bottom: 0;
  }
  .hero-inner { padding-top: 126px; }
  .hero-metrics { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .detail-grid, .strength-grid, .capability-grid, .wire-brand-grid, .process, .applications { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .section-head, .intro-grid, .quality-wrap, .equipment-layout, .quote .section-inner, .split-panel, .split-panel.reverse, .about-layout, .about-text-grid, .field-grid { grid-template-columns: 1fr; }
  .about-profile { position: static; }
  .quality-image { max-height: 520px; }
}
@media (max-width: 680px) {
  .nav, .section-inner, .hero-inner, .footer-inner { width: min(100% - 28px, var(--max)); }
  .section-inner { padding: 64px 0; }
  .nav-links { grid-template-columns: 1fr; padding-left: 14px; padding-right: 14px; }
  .nav-links .header-cta { grid-column: auto; }
  .hero { min-height: auto; }
  .hero-inner { padding: 112px 0 34px; }
  .eyebrow { max-width: 100%; font-size: 0.65rem; letter-spacing: 0.13em; }
  .eyebrow::before { width: 24px; }
  .hero h1 { max-width: 100%; font-size: clamp(2.15rem, 10.8vw, 2.75rem); line-height: 1.02; overflow-wrap: anywhere; }
  .hero-lede { font-size: 1rem; }
  .btn { width: 100%; }
  .hero-metrics { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .hero-metrics .metric:last-child { grid-column: 1 / -1; }
  .detail-grid, .strength-grid, .capability-grid, .wire-brand-grid, .process, .quality-points, .applications, .cap-list { grid-template-columns: 1fr; }
  .metric { min-height: auto; padding: 17px 14px; overflow-wrap: anywhere; }
  .metric strong { font-size: 1.55rem; }
  .metric span { font-size: 0.78rem; }
  .section-head { gap: 18px; margin-bottom: 32px; }
  .section-head h2 { font-size: 1.9rem; }
  .capability-card figure { aspect-ratio: 16/10; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 24px; }
  .table-wrap { overflow-x: visible; border: 0; background: transparent; box-shadow: none; }
  table, thead, tbody, tr, th, td { display: block; }
  table { min-width: 0; }
  thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  tr { margin-bottom: 12px; border: 1px solid var(--line-ink-2); background: var(--card); }
  td { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 12px; padding: 13px 14px; border-bottom: 1px solid var(--line-ink-2); }
  td::before { content: attr(data-label); color: var(--ink-mut); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }
  td:last-child { border-bottom: 0; font-weight: 600; }
}