/* ==========================================================================
   B2B INDUSTRIAL SOLUTIONS LIMITED
   Design system: ENGINEERING SPEC-SHEET / TECHNICAL CATALOG
   Utilitarian, data-dense industrial documentation aesthetic.
   Type: IBM Plex Sans (technical grotesque) + IBM Plex Mono (part codes,
   spec figures, tabular numerals). Sharp corners, hairline rules, flat fills.
   Palette: brand steel-navy + safety-amber over graphite/steel greys.
   ========================================================================== */

:root {
  /* Brand core (carried from source identity) */
  --navy: #16385A;
  --navy-900: #0D2740;
  --navy-700: #1C4772;
  --navy-500: #235B86;

  /* Safety amber accent */
  --amber: #DB8A22;
  --amber-600: #B76F12;
  --amber-050: #FBF1DE;

  /* Graphite / steel greys */
  --ink: #12181E;
  --graphite: #2A343D;
  --steel-700: #465360;
  --steel-500: #6B7883;
  --steel-400: #8A96A1;
  --steel-300: #B7C0C8;
  --steel-200: #D5DCE2;
  --steel-100: #E7ECF0;
  --paper: #F3F5F7;
  --paper-alt: #ECF0F3;
  --white: #FFFFFF;

  /* Hairline rules */
  --rule: #C7D0D8;
  --rule-strong: #9AA6B0;
  --rule-ink: var(--graphite);

  /* Type */
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", "Menlo", "Consolas", monospace;

  /* Layout */
  --wrap: 1200px;
  --gutter: clamp(16px, 4vw, 40px);
  --band-y: clamp(48px, 7vw, 84px);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  font-feature-settings: "tnum" 1, "cv05" 1;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--navy-500); text-underline-offset: 3px; }
a:hover { color: var(--amber-600); }

strong { color: var(--ink); font-weight: 600; }

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

/* ---- Skip link ---------------------------------------------------------- */
.skip-link {
  position: absolute;
  left: 8px;
  top: -60px;
  z-index: 200;
  background: var(--navy);
  color: #fff;
  padding: 10px 18px;
  font: 600 13px/1 var(--mono);
  letter-spacing: 0.04em;
  border: 1px solid var(--amber);
  transition: top .15s ease;
}
.skip-link:focus { top: 8px; color: #fff; }

/* ---- Shared primitives -------------------------------------------------- */
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding-inline: var(--gutter); }
.wrap--narrow { max-width: 820px; }

.microlabel {
  display: inline-block;
  font: 600 11px/1 var(--mono);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--amber-600);
}

.rule-label {
  display: flex;
  align-items: center;
  gap: 14px;
  font: 600 11px/1 var(--mono);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--steel-500);
  margin: 0 0 26px;
}
.rule-label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--rule);
}
.rule-label .idx { color: var(--amber-600); }

h1, h2, h3, h4 {
  font-family: var(--sans);
  color: var(--ink);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.018em;
  margin: 0;
}
h1 { font-size: clamp(2.1rem, 5.2vw, 3.6rem); font-weight: 700; letter-spacing: -0.03em; }
h2 { font-size: clamp(1.55rem, 3.4vw, 2.3rem); }
h3 { font-size: clamp(1.12rem, 1.9vw, 1.32rem); }
p { margin: 0 0 1.05em; color: var(--steel-700); }
.lead { font-size: clamp(1.02rem, 1.5vw, 1.18rem); color: var(--graphite); line-height: 1.55; max-width: 62ch; }

/* ---- Buttons ------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 22px;
  font: 600 13px/1 var(--mono);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.btn svg { width: 15px; height: 15px; }
.btn--solid { background: var(--navy); color: #fff; border-color: var(--navy); }
.btn--solid:hover { background: var(--navy-900); color: #fff; }
.btn--amber { background: var(--amber); color: var(--navy-900); border-color: var(--amber); }
.btn--amber:hover { background: var(--amber-600); color: #fff; }
.btn--ghost { background: transparent; color: var(--navy); border-color: var(--rule-strong); }
.btn--ghost:hover { border-color: var(--navy); color: var(--navy); background: var(--white); }
.btn--ghost-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.4); }
.btn--ghost-light:hover { border-color: #fff; background: rgba(255,255,255,.08); color: #fff; }

/* ==========================================================================
   TWO-TIER HEADER
   ========================================================================== */
.util-bar {
  background: var(--navy-900);
  color: var(--steel-200);
  border-bottom: 1px solid var(--navy-700);
  font: 500 12.5px/1 var(--mono);
}
.util-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 8px var(--gutter);
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}
.util-inner a { color: var(--steel-200); text-decoration: none; letter-spacing: 0.02em; display: inline-flex; align-items: center; gap: 7px; }
.util-inner a:hover { color: #fff; }
.util-inner svg { width: 13px; height: 13px; color: var(--amber); }
.util-sep { color: var(--navy-700); }
.util-spacer { flex: 1; }
.util-quote {
  color: var(--navy-900) !important;
  background: var(--amber);
  padding: 6px 12px;
  letter-spacing: 0.06em !important;
  text-transform: uppercase;
  font-weight: 600;
}
.util-quote:hover { background: #fff; color: var(--navy-900) !important; }

.masthead {
  position: sticky;
  top: 0;
  z-index: 90;
  background: var(--white);
  border-bottom: 2px solid var(--navy);
}
.masthead-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  min-height: 68px;
}
.brand { display: inline-flex; align-items: center; padding: 12px 0; }
.brand img { width: 260px; height: auto; max-width: 62vw; }

.catalog-nav { display: flex; align-items: stretch; }
.catalog-nav ul { display: flex; list-style: none; margin: 0; padding: 0; }
.catalog-nav li { display: flex; }
.catalog-nav a {
  display: inline-flex;
  align-items: center;
  padding: 0 20px;
  font: 600 12.5px/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--graphite);
  text-decoration: none;
  border-left: 1px solid var(--steel-100);
  transition: background .12s ease, color .12s ease;
}
.catalog-nav li:last-child a { border-right: 1px solid var(--steel-100); }
.catalog-nav a:hover { background: var(--paper-alt); color: var(--navy); }
.catalog-nav a[aria-current="page"] {
  color: var(--navy);
  background: var(--paper-alt);
  box-shadow: inset 0 -3px 0 var(--amber);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 50px;
  background: transparent;
  border: 0;
  border-left: 1px solid var(--steel-100);
  color: var(--navy);
  cursor: pointer;
}
.nav-toggle svg { width: 24px; height: 24px; }

@media (max-width: 900px) {
  .catalog-nav { position: absolute; top: 100%; left: 0; right: 0;
    background: var(--white); border-bottom: 2px solid var(--navy);
    box-shadow: 0 18px 40px -24px rgba(13,39,64,.5);
    display: none; }
  .catalog-nav.open { display: block; }
  .catalog-nav ul { flex-direction: column; }
  .catalog-nav a { border-left: 3px solid transparent; border-bottom: 1px solid var(--steel-100); padding: 15px var(--gutter); }
  .catalog-nav li:last-child a { border-right: 0; }
  .catalog-nav a[aria-current="page"] { box-shadow: none; border-left-color: var(--amber); }
  .nav-toggle { display: flex; }
}

/* ==========================================================================
   HERO — technical statement over blueprint grid
   ========================================================================== */
.spec-hero {
  position: relative;
  background: var(--navy-900);
  color: #fff;
  overflow: hidden;
  border-bottom: 1px solid var(--navy-700);
}
.blueprint {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.09) 1px, transparent 1px);
  background-size: 28px 28px, 28px 28px, 140px 140px, 140px 140px;
  background-position: -1px -1px;
  pointer-events: none;
}
.spec-hero .wrap { position: relative; padding-top: clamp(44px, 7vw, 78px); padding-bottom: clamp(44px, 7vw, 78px); }
.hero-meta {
  display: flex; flex-wrap: wrap; gap: 10px 22px;
  font: 500 11.5px/1 var(--mono); letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--amber); margin-bottom: 26px;
}
.hero-meta span { color: var(--steel-300); }
.hero-statement { max-width: 22ch; }
.spec-hero h1 { color: #fff; }
.spec-hero h1 .hl { color: var(--amber); }
.hero-sub { color: var(--steel-200); max-width: 60ch; margin: 22px 0 30px; font-size: clamp(1rem, 1.4vw, 1.14rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---- Spec ribbon (bordered stat cells) ---------------------------------- */
.spec-ribbon {
  position: relative;
  border-top: 1px solid var(--navy-700);
  background: var(--navy);
}
.spec-ribbon-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.spec-cell {
  padding: 22px var(--gutter);
  border-left: 1px solid var(--navy-700);
  color: #fff;
}
.spec-cell:first-child { border-left: 0; }
.spec-cell .fig { font: 700 clamp(1.4rem, 2.4vw, 1.9rem)/1 var(--mono); color: var(--amber); letter-spacing: -0.02em; }
.spec-cell .cap { display: block; margin-top: 8px; font-size: 12.5px; letter-spacing: 0.02em; color: var(--steel-200); line-height: 1.4; }
@media (max-width: 760px) {
  .spec-ribbon-inner { grid-template-columns: repeat(2, 1fr); }
  .spec-cell { border-top: 1px solid var(--navy-700); }
  .spec-cell:nth-child(-n+2) { border-top: 0; }
  .spec-cell:nth-child(odd) { border-left: 0; }
}

/* ==========================================================================
   BANDS / SECTIONS
   ========================================================================== */
.band { padding-block: var(--band-y); }
.band--paper { background: var(--paper); }
.band--alt { background: var(--paper-alt); border-block: 1px solid var(--rule); }
.band--ink { background: var(--graphite); color: var(--steel-100); }
.band--ink h2, .band--ink h3 { color: #fff; }
.band--ink p { color: var(--steel-300); }

.band-head { max-width: 66ch; margin-bottom: 34px; }
.band-head p { margin-bottom: 0; }

/* ==========================================================================
   CAPABILITIES MATRIX (actual data table)
   ========================================================================== */
.matrix-scroll { overflow-x: auto; border: 1px solid var(--rule-strong); background: var(--white); }
table.matrix {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 14px;
}
table.matrix caption {
  text-align: left;
  padding: 14px 16px;
  font: 600 11px/1.4 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel-500);
  background: var(--paper-alt);
  border-bottom: 1px solid var(--rule);
}
table.matrix th, table.matrix td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--steel-100);
  border-left: 1px solid var(--steel-100);
  vertical-align: top;
}
table.matrix th:first-child, table.matrix td:first-child { border-left: 0; }
table.matrix thead th {
  background: var(--navy);
  color: #fff;
  font: 600 11.5px/1.3 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-left-color: var(--navy-700);
  border-bottom-color: var(--navy);
  white-space: nowrap;
}
table.matrix tbody th {
  font-weight: 600;
  color: var(--ink);
  background: var(--paper);
  width: 26%;
}
table.matrix tbody th .code { display: block; font: 600 11px/1.6 var(--mono); color: var(--amber-600); letter-spacing: 0.04em; }
table.matrix tbody tr:hover td, table.matrix tbody tr:hover th { background: var(--amber-050); }
.matrix-mark { color: var(--navy-500); font-weight: 700; }
.matrix-dash { color: var(--steel-400); }

/* ==========================================================================
   DATASHEET — rectangular spec cards, hairline dividers, mono part-labels
   ========================================================================== */
.datasheet {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule-strong);
}
.ds-card {
  background: var(--white);
  padding: 26px 24px;
  display: flex;
  flex-direction: column;
}
.ds-head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
  padding-bottom: 12px; margin-bottom: 16px;
  border-bottom: 1px solid var(--steel-200);
}
.part-code { font: 600 11.5px/1 var(--mono); letter-spacing: 0.06em; color: var(--amber-600); }
.ds-no { font: 600 11.5px/1 var(--mono); color: var(--steel-400); }
.ds-card h3 { margin-bottom: 10px; }
.ds-card > p { color: var(--steel-700); font-size: 15px; }
.spec-list { list-style: none; margin: 4px 0 0; padding: 0; }
.spec-list li {
  display: grid;
  grid-template-columns: 16px 1fr;
  gap: 10px;
  padding: 8px 0;
  font-size: 14px;
  color: var(--graphite);
  border-top: 1px solid var(--steel-100);
}
.spec-list li::before {
  content: "";
  width: 8px; height: 8px;
  margin-top: 6px;
  background: var(--amber);
  border: 1px solid var(--amber-600);
}
.ds-card--accent { border-left: 3px solid var(--amber); }
@media (max-width: 720px) { .datasheet { grid-template-columns: 1fr; } }

/* ==========================================================================
   INDUSTRY TAG GRID (tight bordered tags)
   ========================================================================== */
.tag-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule-strong);
}
.tag {
  background: var(--white);
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: background .12s ease;
}
.tag:hover { background: var(--amber-050); }
.tag .tag-code { font: 600 10.5px/1 var(--mono); letter-spacing: 0.1em; color: var(--steel-400); }
.tag .tag-name { font-weight: 600; color: var(--ink); font-size: 15px; }
.tag .tag-note { font: 500 12px/1.4 var(--mono); color: var(--steel-500); }
@media (max-width: 900px) { .tag-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 460px) { .tag-grid { grid-template-columns: 1fr; } }

/* ==========================================================================
   PROCESS STEPPER (numbered, connecting rule)
   ========================================================================== */
.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--rule-strong);
  background: var(--white);
}
.pnode {
  padding: 26px 22px;
  border-left: 1px solid var(--rule);
  position: relative;
}
.pnode:first-child { border-left: 0; }
.process--3 { grid-template-columns: repeat(3, 1fr); }
.pnode .pnum {
  font: 700 13px/1 var(--mono);
  color: var(--navy-900);
  background: var(--amber);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  margin-bottom: 16px;
}
.pnode h3 { font-size: 1.05rem; margin-bottom: 8px; }
.pnode p { font-size: 14px; margin: 0; }
.pnode .prail { position: absolute; top: 43px; left: -1px; right: 0; height: 1px; background: var(--rule); }
@media (max-width: 820px) {
  .process { grid-template-columns: 1fr 1fr; }
  .pnode:nth-child(odd) { border-left: 0; }
  .pnode:nth-child(n+3) { border-top: 1px solid var(--rule); }
}
@media (max-width: 480px) {
  .process { grid-template-columns: 1fr; }
  .pnode { border-left: 0; }
  .pnode:nth-child(n+2) { border-top: 1px solid var(--rule); }
}

/* ==========================================================================
   SPLIT (copy + figure) — bespoke two-column figure block
   ========================================================================== */
.split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(24px, 4vw, 52px);
  align-items: center;
}
.split--flip .split-copy { order: 2; }
.figure-plate {
  border: 1px solid var(--rule-strong);
  background: var(--white);
  padding: 8px;
}
.figure-plate img { width: 100%; }
.figure-cap {
  display: flex; align-items: center; gap: 10px;
  margin-top: 8px; padding: 8px 6px 2px;
  font: 500 11px/1.3 var(--mono); letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--steel-500); border-top: 1px solid var(--steel-100);
}
.figure-cap .fc-tag { color: var(--amber-600); }
@media (max-width: 820px) {
  .split { grid-template-columns: 1fr; }
  .split--flip .split-copy { order: 0; }
}

/* ---- Spec key/value table (facts) --------------------------------------- */
.kv {
  border: 1px solid var(--rule-strong);
  background: var(--white);
}
.kv div {
  display: grid;
  grid-template-columns: 40% 1fr;
  border-bottom: 1px solid var(--steel-100);
}
.kv div:last-child { border-bottom: 0; }
.kv dt {
  padding: 13px 16px;
  background: var(--paper);
  font: 600 12px/1.4 var(--mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--steel-600, var(--steel-500));
  border-right: 1px solid var(--steel-100);
}
.kv dd { margin: 0; padding: 13px 16px; color: var(--ink); font-size: 14.5px; }

/* ==========================================================================
   TWO-STREAM PANELS (who-we-serve etc.) — bordered rectangular
   ========================================================================== */
.stream-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--rule); border: 1px solid var(--rule-strong); }
.stream {
  background: var(--white);
  padding: 30px 26px;
}
.stream .part-code { margin-bottom: 14px; display: inline-block; }
.stream h3 { margin-bottom: 12px; }
.stream ul { list-style: none; margin: 16px 0 0; padding: 0; }
.stream li {
  display: grid; grid-template-columns: 18px 1fr; gap: 10px;
  padding: 9px 0; font-size: 14px; color: var(--graphite);
  border-top: 1px solid var(--steel-100);
}
.stream li svg { width: 14px; height: 14px; margin-top: 4px; color: var(--navy-500); }
@media (max-width: 720px) { .stream-grid { grid-template-columns: 1fr; } }

/* ==========================================================================
   QUOTE / LINE-CARD CTA
   ========================================================================== */
.linecard {
  background: var(--navy);
  color: #fff;
  border: 1px solid var(--navy-700);
  display: grid;
  grid-template-columns: 1.4fr 1fr;
}
.linecard-copy { padding: clamp(30px, 5vw, 52px); position: relative; }
.linecard-copy::before {
  content: "";
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 26px 26px; pointer-events: none;
}
.linecard-copy > * { position: relative; }
.linecard-copy h2 { color: #fff; margin-bottom: 14px; }
.linecard-copy p { color: var(--steel-200); margin-bottom: 26px; max-width: 46ch; }
.linecard-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.linecard-side {
  border-left: 1px solid var(--navy-700);
  padding: clamp(30px, 5vw, 52px);
  display: flex; flex-direction: column; justify-content: center; gap: 18px;
  background: var(--navy-900);
}
.linecard-side .li-row { display: flex; flex-direction: column; gap: 3px; }
.linecard-side .li-k { font: 600 10.5px/1 var(--mono); letter-spacing: 0.16em; text-transform: uppercase; color: var(--amber); }
.linecard-side .li-v { font: 500 15px/1.4 var(--mono); color: #fff; }
.linecard-side a { color: #fff; text-decoration: none; }
.linecard-side a:hover { color: var(--amber); }
@media (max-width: 720px) {
  .linecard { grid-template-columns: 1fr; }
  .linecard-side { border-left: 0; border-top: 1px solid var(--navy-700); }
}

/* ==========================================================================
   VALUES / SPEC GRID (about)
   ========================================================================== */
.spec-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--rule); border: 1px solid var(--rule-strong); }
.spec-item { background: var(--white); padding: 24px 22px; }
.spec-item .part-code { display: block; margin-bottom: 12px; }
.spec-item h3 { font-size: 1.06rem; margin-bottom: 8px; }
.spec-item p { font-size: 14px; margin: 0; }
@media (max-width: 860px) { .spec-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .spec-grid { grid-template-columns: 1fr; } }

/* ---- Callout / spec-note ------------------------------------------------ */
.spec-note {
  border: 1px solid var(--rule-strong);
  border-left: 3px solid var(--amber);
  background: var(--white);
  padding: 24px 26px;
}
.spec-note .sn-k { font: 600 11px/1 var(--mono); letter-spacing: 0.16em; text-transform: uppercase; color: var(--amber-600); }
.spec-note blockquote { margin: 12px 0 0; font-size: clamp(1.1rem, 1.9vw, 1.35rem); line-height: 1.4; color: var(--ink); }
.spec-note cite { display: block; margin-top: 14px; font: 500 12.5px/1 var(--mono); color: var(--steel-500); font-style: normal; letter-spacing: 0.04em; }

/* ==========================================================================
   FOUNDER PLATE
   ========================================================================== */
.founder-plate { display: grid; grid-template-columns: 300px 1fr; border: 1px solid var(--rule-strong); background: var(--white); }
.founder-id { background: var(--navy); color: #fff; padding: 30px 26px; display: flex; flex-direction: column; }
.founder-id .part-code { color: var(--amber); }
.founder-id .fname { font-size: 1.5rem; font-weight: 700; margin: 14px 0 4px; color: #fff; letter-spacing: -0.02em; }
.founder-id .frole { font: 500 12px/1.4 var(--mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--steel-300); }
.founder-id .fquote { margin-top: auto; padding-top: 24px; font-size: 14.5px; color: var(--steel-100); line-height: 1.5; border-top: 1px solid var(--navy-700); }
.founder-body { padding: 30px 28px; }
.founder-body .fcred { font: 500 12.5px/1.5 var(--mono); color: var(--steel-500); margin-top: 4px; padding-top: 14px; border-top: 1px solid var(--steel-100); }
@media (max-width: 760px) { .founder-plate { grid-template-columns: 1fr; } }

/* ==========================================================================
   PAGE HEAD (legal + interior)
   ========================================================================== */
.doc-head {
  background: var(--navy-900);
  color: #fff;
  border-bottom: 1px solid var(--navy-700);
  position: relative;
  overflow: hidden;
}
.doc-head .blueprint { opacity: .8; }
.doc-head .wrap { position: relative; padding-block: clamp(40px, 6vw, 64px); }
.doc-head h1 { color: #fff; }
.doc-head .microlabel { color: var(--amber); }
.doc-head .doc-updated { font: 500 12.5px/1 var(--mono); color: var(--steel-300); margin-top: 16px; }

/* ---- Prose (legal) ------------------------------------------------------ */
.prose { max-width: 74ch; }
.prose h2 {
  font-size: 1.25rem; margin: 40px 0 12px; padding-top: 16px;
  border-top: 1px solid var(--rule);
}
.prose h2:first-of-type { padding-top: 0; border-top: 0; }
.prose ul { margin: 0 0 1.1em; padding-left: 1.1em; }
.prose li { margin-bottom: .5em; color: var(--steel-700); }
.prose code { font-family: var(--mono); font-size: .9em; background: var(--paper-alt); padding: 2px 6px; border: 1px solid var(--steel-200); }

/* ==========================================================================
   CONTACT
   ========================================================================== */
.contact-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 1px; background: var(--rule); border: 1px solid var(--rule-strong); }
@media (max-width: 760px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-form { background: var(--white); padding: clamp(24px, 3.5vw, 38px); }
.contact-side { background: var(--paper); padding: clamp(24px, 3.5vw, 38px); }
.form-head { font: 600 11px/1 var(--mono); letter-spacing: 0.16em; text-transform: uppercase; color: var(--amber-600); margin-bottom: 22px; padding-bottom: 14px; border-bottom: 1px solid var(--steel-200); }
.field { margin-bottom: 18px; }
.field label { display: block; font: 600 12px/1 var(--mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--graphite); margin-bottom: 8px; }
.field input, .field select, .field textarea {
  width: 100%;
  font-family: var(--sans);
  font-size: 15px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--rule-strong);
  padding: 12px 14px;
  border-radius: 0;
}
.contact-form .field input, .contact-form .field select, .contact-form .field textarea { background: var(--paper); }
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--navy); outline: 3px solid var(--amber); outline-offset: 1px; }
.form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 6px; }
.form-note { margin: 0; font: 500 12px/1.4 var(--mono); color: var(--steel-500); }

.contact-dl { margin: 0; }
.contact-dl > div { padding: 14px 0; border-bottom: 1px solid var(--steel-200); }
.contact-dl > div:last-child { border-bottom: 0; }
.contact-dl dt { font: 600 11px/1 var(--mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--steel-500); margin-bottom: 6px; }
.contact-dl dd { margin: 0; color: var(--ink); font-size: 15px; }
.contact-dl dd a { color: var(--navy-500); font-family: var(--mono); font-size: 14px; text-decoration: none; }
.contact-dl dd a:hover { color: var(--amber-600); }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.doc-footer { background: var(--navy-900); color: var(--steel-200); border-top: 3px solid var(--amber); }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 30px; padding-block: clamp(38px, 5vw, 56px); }
.footer-brand img { width: 250px; max-width: 70vw; margin-bottom: 16px; }
.footer-brand p { color: var(--steel-300); font-size: 14px; max-width: 40ch; }
.doc-footer h4 { color: #fff; font: 600 11px/1 var(--mono); letter-spacing: 0.16em; text-transform: uppercase; margin-bottom: 16px; }
.doc-footer ul { list-style: none; margin: 0; padding: 0; }
.doc-footer li { margin-bottom: 10px; }
.doc-footer a { color: var(--steel-200); text-decoration: none; font-size: 14px; }
.doc-footer a:hover { color: var(--amber); }
.footer-contact li { font: 500 13.5px/1.5 var(--mono); color: var(--steel-300); }
.footer-bottom {
  border-top: 1px solid var(--navy-700);
  padding-block: 18px;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px;
  font: 500 12px/1.5 var(--mono); color: var(--steel-400);
}
.footer-bottom a { color: var(--steel-300); text-decoration: none; }
.footer-bottom a:hover { color: var(--amber); }
@media (max-width: 820px) { .footer-top { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-top { grid-template-columns: 1fr; } }

/* ---- Utility ------------------------------------------------------------ */
.stack-sm > * + * { margin-top: 14px; }
.mt-band { margin-top: clamp(28px, 4vw, 44px); }
.center { text-align: center; }
.center .lead { margin-inline: auto; }
.center .rule-label { justify-content: center; }
.center .rule-label::after, .center .rule-label::before { display: none; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}