/* ============================================================
   WRYGT — brand color system
   Deep Slate/Navy (primary) · Steel Blue (secondary) ·
   Warm Off-White (background) · Engineering Orange (accent,
   split into a light-bg-safe and dark-bg-safe tint for
   WCAG AA contrast) · Dark Charcoal (body text).
   ============================================================ */
:root {
  --navy: #263746;
  --navy-2: #31485b;
  --copper: #b4521f;        /* accent on light backgrounds — CTAs, links, emphasis */
  --copper-light: #e47b43;  /* accent on dark backgrounds — labels/eyebrows on navy */
  --paper: #f7f5f0;
  --paper-2: #efebe2;
  --ink: #252b2f;
  --slate: #60788a;         /* secondary text on light backgrounds */
  --slate-2: #93acbb;       /* secondary text on dark backgrounds */
  --line: #ddd8cc;
  --line-dark: rgba(247, 245, 240, 0.18);

  --display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --body: "Inter", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;

  --frame: 14px;
  --maxw: 1180px;
}

* { 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;
  background: var(--navy);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--display);
  color: var(--navy);
  margin: 0 0 0.5em;
  line-height: 1.08;
  letter-spacing: -0.01em;
}

a { color: inherit; }
img { max-width: 100%; display: block; }

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

/* ---------------- Drawing-sheet frame (signature) ---------------- */
.sheet {
  background: var(--paper);
  margin: var(--frame);
  min-height: calc(100vh - 2 * var(--frame));
  border: 1px solid var(--navy);
  position: relative;
}
.sheet::before,
.sheet::after,
.sheet .fid-tr,
.sheet .fid-br {
  content: "";
  position: fixed;
  width: 22px;
  height: 22px;
  z-index: 40;
  pointer-events: none;
}
.sheet::before { top: var(--frame); left: var(--frame); border-top: 2px solid var(--copper); border-left: 2px solid var(--copper); }
.sheet::after { bottom: var(--frame); left: var(--frame); border-bottom: 2px solid var(--copper); border-left: 2px solid var(--copper); }
.fid-tr { top: var(--frame); right: var(--frame); border-top: 2px solid var(--copper); border-right: 2px solid var(--copper); }
.fid-br { bottom: var(--frame); right: var(--frame); border-bottom: 2px solid var(--copper); border-right: 2px solid var(--copper); }

/* ---------------- Title-block header ---------------- */
.titleblock {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  border-bottom: 1px solid var(--navy);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 30;
}
.tb-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 28px;
  border-right: 1px solid var(--line);
  text-decoration: none;
}
.tb-mark {
  width: 40px; height: 32px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.tb-mark svg {
  width: 100%;
  height: 100%;
  display: block;
}
.tb-wordmark {
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--navy);
  letter-spacing: -0.01em;
}
.tb-wordmark small {
  display: block;
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 400;
  color: var(--slate);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 2px;
}
.tb-nav {
  display: flex;
  align-items: stretch;
  flex: 1;
  justify-content: flex-end;
}
.tb-nav a {
  display: flex;
  align-items: center;
  padding: 0 22px;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--slate);
  border-left: 1px solid var(--line);
  position: relative;
  transition: color 0.15s ease, background 0.15s ease;
}
.tb-nav a:hover { color: var(--navy); background: var(--paper-2); }
.tb-nav a.active { color: var(--navy); font-weight: 600; }
.tb-nav a.active::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background: var(--copper);
}
.tb-nav a.cta { color: var(--paper); background: var(--navy); font-weight: 600; }
.tb-nav a.cta:hover { background: var(--copper); }
.tb-menu-btn {
  display: none;
  border: none; background: none; padding: 18px 22px; cursor: pointer;
}
.tb-menu-btn span, .tb-menu-btn span::before, .tb-menu-btn span::after {
  content: ""; display: block; width: 20px; height: 2px; background: var(--navy);
  position: relative; transition: transform .2s ease, opacity .2s ease;
}
.tb-menu-btn span::before { position: absolute; top: -6px; }
.tb-menu-btn span::after { position: absolute; top: 6px; }

@media (max-width: 860px) {
  .tb-wordmark small { font-size: 0.56rem; letter-spacing: 0.04em; white-space: nowrap; }
  .tb-nav { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: var(--paper); border-bottom: 1px solid var(--navy); }
  .tb-nav.open { display: flex; }
  .tb-nav a { border-left: none; border-top: 1px solid var(--line); padding: 16px 24px; justify-content: flex-start; }
  .tb-menu-btn { display: block; }
}

/* ---------------- Layout helpers ---------------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 32px; }
section { padding: 88px 0; }
.eyebrow {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--copper);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}
.eyebrow::before { content: ""; width: 22px; height: 1px; background: var(--copper); }

.rule { border: none; border-top: 1px solid var(--line); margin: 0; }
.divider-label {
  display: flex; align-items: center; gap: 16px;
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--slate-2);
  margin: 0;
}
.divider-label .l1, .divider-label .l2 { flex: 1; border-top: 1px solid var(--line); }

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.04em; text-transform: uppercase;
  padding: 14px 24px; text-decoration: none; border: 1.5px solid var(--navy); color: var(--navy);
  transition: background .15s ease, color .15s ease, transform .1s ease;
}
.btn:hover { background: var(--navy); color: var(--paper); }
.btn:active { transform: translateY(1px); }
.btn-solid { background: var(--copper); border-color: var(--copper); color: var(--paper); }
.btn-solid:hover { background: var(--navy); border-color: var(--navy); }
.btn-ghost { border-color: var(--line-dark); color: inherit; }

/* ---------------- Hero ---------------- */
.hero {
  padding: 110px 0 90px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--navy);
}
.hero .wrap { position: relative; z-index: 2; }
.hero h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  max-width: 15ch;
}
.hero .lede {
  font-size: 1.15rem;
  color: var(--slate);
  max-width: 52ch;
  margin: 22px 0 36px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-trace {
  position: absolute; top: 0; right: -4%; height: 100%; width: 60%;
  z-index: 1; opacity: 0.9;
}
.hero-trace svg { width: 100%; height: 100%; }
.trace-path {
  fill: none; stroke: var(--navy); stroke-width: 1.4; opacity: 0.16;
}
.trace-path.copper { stroke: var(--copper); opacity: 0.55; stroke-dasharray: 6 420; stroke-dashoffset: 0; animation: draw 3.2s ease-out forwards; }
.trace-pad { fill: var(--copper); opacity: 0.7; }
@keyframes draw { from { stroke-dashoffset: 420; } to { stroke-dashoffset: 0; } }
@media (prefers-reduced-motion: reduce) {
  .trace-path.copper { animation: none; stroke-dasharray: none; }
}

/* ---------------- BOM-style service list ---------------- */
.bom {
  width: 100%;
  border-collapse: collapse;
}
.bom thead th {
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--slate-2); text-align: left; padding: 0 0 12px; border-bottom: 1px solid var(--navy);
}
.bom tbody td {
  padding: 22px 0; border-bottom: 1px solid var(--line); vertical-align: top;
}
.bom tbody tr:last-child td { border-bottom: 1px solid var(--navy); }
.bom .ref {
  font-family: var(--mono); color: var(--copper); font-weight: 600; font-size: 0.95rem; width: 70px; white-space: nowrap;
}
.bom .item h3 { font-size: 1.15rem; margin-bottom: 6px; }
.bom .item p { margin: 0; color: var(--slate); max-width: 56ch; }
.bom .qty { font-family: var(--mono); font-size: 0.78rem; color: var(--slate-2); text-align: right; white-space: nowrap; }

/* ---------------- Cards ---------------- */
.grid { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.grid.cols-2 { grid-template-columns: 1fr 1fr; }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.card { background: var(--paper); padding: 34px; }
.card .num { font-family: var(--mono); color: var(--copper); font-size: 0.78rem; margin-bottom: 14px; display: block; }
.card h3 { font-size: 1.2rem; margin-bottom: 10px; }
.card p { color: var(--slate); margin: 0; }
@media (max-width: 760px) {
  .grid.cols-2, .grid.cols-3 { grid-template-columns: 1fr; }
}

/* ---------------- Dark band ---------------- */
.band-dark {
  background: var(--navy);
  color: var(--paper);
}
.band-dark h2, .band-dark h3 { color: var(--paper); }
.band-dark .eyebrow { color: var(--copper-light); }
.band-dark .card { background: var(--navy-2); color: var(--paper); }
.band-dark .grid { background: var(--line-dark); border-color: var(--line-dark); }
.band-dark .card p { color: var(--slate-2); }
.band-dark hr.rule { border-top-color: var(--line-dark); }

/* ---------------- Stat strip ---------------- */
.stats { display: flex; flex-wrap: wrap; gap: 0; border-top: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
.stat { flex: 1; min-width: 200px; padding: 30px 0; border-right: 1px solid var(--line-dark); }
.stat:last-child { border-right: none; }
.stat .n { font-family: var(--display); font-size: 2.1rem; color: var(--copper-light); }
.stat .l { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--slate-2); margin-top: 4px; }

/* ---------------- Revision history table (timeline) ---------------- */
.revtable { width: 100%; border-collapse: collapse; }
.revtable th {
  font-family: var(--mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.08em;
  text-align: left; color: var(--paper); background: var(--navy); padding: 12px 16px; border: 1px solid var(--navy);
}
.revtable td {
  padding: 16px; border: 1px solid var(--line); vertical-align: top; color: var(--ink);
}
.revtable td.rv { font-family: var(--mono); color: var(--copper); font-weight: 700; }
.revtable tr:nth-child(even) td { background: var(--paper-2); }

/* ---------------- Forms ---------------- */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.form-row.full { grid-template-columns: 1fr; }
label {
  display: block; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--slate); margin-bottom: 8px;
}
input, textarea, select {
  width: 100%; border: 1px solid var(--navy); background: var(--paper); padding: 12px 14px;
  font-family: var(--body); font-size: 0.95rem; color: var(--ink);
}
textarea { resize: vertical; min-height: 130px; }
input:focus, textarea:focus, select:focus { outline: 2px solid var(--copper); outline-offset: 1px; }
@media (max-width: 700px) { .form-row { grid-template-columns: 1fr; } }

/* ---------------- Footer title block ---------------- */
.footer-tb {
  background: var(--navy); color: var(--paper);
  border-top: 1px solid var(--navy);
}
.footer-tb .wrap {
  padding: 50px 32px 26px;
  display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 40px;
}
.footer-tb h4 {
  color: var(--copper-light); font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 16px;
}
.footer-tb p, .footer-tb a { color: var(--slate-2); text-decoration: none; font-size: 0.92rem; }
.footer-tb a:hover { color: var(--paper); }
.footer-tb ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-strip {
  border-top: 1px solid var(--line-dark);
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.04em; color: var(--slate-2);
  padding: 16px 32px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
}
@media (max-width: 760px) {
  .footer-tb .wrap { grid-template-columns: 1fr 1fr; }
}

/* ---------------- Reveal on scroll ---------------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------------- Misc page bits ---------------- */
.page-head { padding: 70px 0 50px; border-bottom: 1px solid var(--navy); }
.page-head h1 { font-size: clamp(2rem, 4vw, 3rem); max-width: 20ch; }
.page-head .lede { color: var(--slate); max-width: 60ch; font-size: 1.08rem; margin-top: 16px; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.three-col { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 44px; align-items: start; }
@media (max-width: 860px) { .two-col { grid-template-columns: 1fr; gap: 36px; } .three-col { grid-template-columns: 1fr; gap: 36px; } }

.tag {
  display: inline-block; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.06em; text-transform: uppercase;
  border: 1px solid var(--line); padding: 4px 10px; color: var(--slate); margin: 0 8px 8px 0;
}

/* ---------------- Article / long-form insight pages ---------------- */
.article-meta { display: flex; gap: 14px; align-items: center; margin-top: 18px; flex-wrap: wrap; }
.prose { max-width: 74ch; }
.prose p { color: var(--ink); font-size: 1.02rem; line-height: 1.7; margin: 0 0 20px; }
.prose h2 { font-size: 1.5rem; margin: 52px 0 18px; }
.prose h3 { font-size: 1.15rem; margin: 36px 0 14px; color: var(--navy); }
.prose ul, .prose ol { color: var(--ink); font-size: 1.02rem; line-height: 1.7; padding-left: 22px; margin: 0 0 20px; }
.prose li { margin-bottom: 8px; }
.prose strong { color: var(--navy); }

.step-list { list-style: none; padding: 0; margin: 0 0 20px; counter-reset: step; }
.step-list li {
  counter-increment: step; position: relative; padding: 4px 0 22px 46px; margin: 0;
  border-left: 1px solid var(--line);
}
.step-list li:last-child { border-left: 1px solid transparent; padding-bottom: 0; }
.step-list li::before {
  content: counter(step); position: absolute; left: -18px; top: 0;
  width: 34px; height: 34px; border-radius: 50%; background: var(--navy); color: var(--paper);
  font-family: var(--mono); font-size: 0.85rem; font-weight: 600;
  display: flex; align-items: center; justify-content: center;
}
.step-list strong { display: block; color: var(--navy); margin-bottom: 4px; }

.callout {
  border: 1px solid var(--line); border-left: 3px solid var(--copper); background: var(--paper-2);
  padding: 22px 26px; margin: 0 0 28px; font-size: 0.98rem; color: var(--ink); line-height: 1.65;
}
.callout strong { color: var(--navy); }

.comp-table { width: 100%; border-collapse: collapse; margin: 0 0 28px; font-size: 0.92rem; }
.comp-table th {
  font-family: var(--mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.06em;
  background: var(--navy); color: var(--paper); text-align: left; padding: 10px 14px; border: 1px solid var(--navy);
}
.comp-table td { padding: 12px 14px; border: 1px solid var(--line); vertical-align: top; color: var(--ink); }
.comp-table tr:nth-child(even) td { background: var(--paper-2); }

.faq-item { border-bottom: 1px solid var(--line); padding: 20px 0; }
.faq-item:first-child { border-top: 1px solid var(--line); }
.faq-item h3 { font-size: 1.02rem; margin: 0 0 8px; color: var(--navy); }
.faq-item p { margin: 0; color: var(--slate); font-size: 0.96rem; line-height: 1.6; }

.article-cta {
  border: 1px solid var(--line); background: var(--paper-2); padding: 26px 30px; margin: 36px 0 0;
  font-size: 0.98rem; color: var(--ink); line-height: 1.6;
}
.article-cta a { color: var(--copper); font-weight: 600; text-decoration: none; }
.article-cta a:hover { text-decoration: underline; }

.related-strip { display: flex; gap: 20px; flex-wrap: wrap; margin-top: 16px; }
.related-strip a {
  flex: 1; min-width: 220px; border: 1px solid var(--line); padding: 18px 20px; text-decoration: none; color: var(--ink);
  font-family: var(--body); font-size: 0.92rem; transition: border-color .15s ease;
}
.related-strip a:hover { border-color: var(--copper); }
.related-strip .rk { font-family: var(--mono); font-size: 0.68rem; color: var(--copper); text-transform: uppercase; letter-spacing: 0.06em; display: block; margin-bottom: 6px; }