/* VeriMantle — public site
   Design system: engineering drawing. Cold-rolled steel ground, signal amber,
   hairline rules, corner ticks, mono index numbers. Square geometry; depth
   comes from figure/ground and rule weight, not from shadow or gradient.
   Typefaces: IBM Plex Sans (text), IBM Plex Mono (instrument labels). */

/* ---------------------------------------------------------------- tokens */

:root {
  /* light ground */
  --paper: #EDEFEE;
  --paper-raised: #F6F7F5;
  --paper-sunk: #E3E6E4;

  --ink: #12171A;
  --ink-2: #394146;
  --ink-3: #5A6267;

  --line: #CDD2CE;
  --line-2: #AEB5B0;

  /* dark ground */
  --steel-900: #0F1519;
  --steel-800: #161D22;
  --steel-700: #1E262C;
  --steel-line: #2B353C;
  --steel-line-2: #3D4850;

  --on-dark: #E7EAE8;
  --on-dark-2: #A3ACB1;
  --on-dark-3: #8B949A;

  /* signal */
  --amber: #C07F1F;          /* graphic marks on light */
  --amber-text: #8F5C14;     /* amber that must pass AA as text on light */
  --amber-bright: #E09A34;   /* graphic + text on dark */
  --amber-tint: #F1E3CA;

  --verify: #3E6B52;
  --verify-text: #2F5641;
  --verify-bright: #74A88A;
  --verify-tint: #DCE8E0;

  --wrap: 1180px;
  --measure: 66ch;
  --radius: 2px;

  --band-py: clamp(72px, 8.5vw, 124px);
}

/* ------------------------------------------------------------------ base */

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}
.band--dark :focus-visible { outline-color: var(--amber-bright); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: 12px 18px;
  z-index: 100;
  font-weight: 600;
}
.skip-link:focus { left: 20px; top: 12px; }

/* ------------------------------------------------------------ typography */

h1, h2, h3, h4 {
  margin: 0 0 0.5em;
  font-weight: 600;
  letter-spacing: -0.021em;
  line-height: 1.12;
  color: inherit;
  text-wrap: balance;
}

h1 { font-size: clamp(2.15rem, 1.35rem + 3.4vw, 3.5rem); letter-spacing: -0.028em; }
h2 { font-size: clamp(1.7rem, 1.15rem + 2.1vw, 2.5rem); }
h3 { font-size: 1.1rem; letter-spacing: -0.012em; line-height: 1.3; }

p { margin: 0 0 1rem; color: var(--ink-2); max-width: var(--measure); }
p:last-child { margin-bottom: 0; }

.lede {
  font-size: clamp(1.05rem, 0.98rem + 0.4vw, 1.2rem);
  line-height: 1.55;
  color: var(--ink-2);
}

.mono, .label {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* instrument label: the small mono tier used for every technical annotation */
.label {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0;
}
.label--amber { color: var(--amber-text); }
.band--dark .label { color: var(--on-dark-3); }
.band--dark .label--amber { color: var(--amber-bright); }

/* ---------------------------------------------------------------- layout */

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

.band {
  padding: var(--band-py) 0;
  border-top: 1px solid var(--line);
}
.band--flush { border-top: none; }

.band--dark {
  background: var(--steel-900);
  color: var(--on-dark);
  border-top: none;
}
.band--dark h2, .band--dark h3 { color: var(--on-dark); }
.band--dark p { color: var(--on-dark-2); }

.band--sunk { background: var(--paper-sunk); }

.section-head { margin-bottom: clamp(36px, 4.5vw, 64px); }
.section-head .label { margin-bottom: 14px; }
.section-head h2 { max-width: 20ch; }
.section-head p { max-width: 58ch; }
.section-head--wide h2 { max-width: 26ch; }

/* hairline with an index number, the recurring structural device */
.rule {
  display: flex;
  align-items: baseline;
  gap: 16px;
  border-top: 1px solid var(--line-2);
  padding-top: 12px;
  margin-bottom: 28px;
}
.band--dark .rule { border-top-color: var(--steel-line-2); }

/* corner ticks: drawing-frame marks on figures */
.ticked { position: relative; }
.ticked::before,
.ticked::after {
  content: "";
  position: absolute;
  width: 9px;
  height: 9px;
  pointer-events: none;
}
.ticked::before {
  top: -1px; left: -1px;
  border-top: 2px solid var(--amber);
  border-left: 2px solid var(--amber);
}
.ticked::after {
  bottom: -1px; right: -1px;
  border-bottom: 2px solid var(--amber);
  border-right: 2px solid var(--amber);
}
.band--dark .ticked::before,
.band--dark .ticked::after { border-color: var(--amber-bright); }

/* ---------------------------------------------------------------- header */

header.site {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--line);
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  color: var(--ink);
  min-height: 44px;
}
.brand-mark { width: 24px; height: 24px; flex: none; }
.brand-name {
  font-weight: 600;
  font-size: 1.06rem;
  letter-spacing: -0.015em;
}
.brand-tag { display: none; }

@media (min-width: 900px) {
  .brand-tag {
    display: inline;
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.7rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--ink-3);
    padding-left: 12px;
    margin-left: 1px;
    border-left: 1px solid var(--line-2);
  }
}

nav.site-nav { display: none; gap: 28px; font-size: 0.9rem; }
@media (min-width: 880px) { nav.site-nav { display: flex; } }

nav.site-nav a {
  text-decoration: none;
  color: var(--ink-2);
  padding: 10px 0;
  border-bottom: 1px solid transparent;
}
nav.site-nav a:hover { color: var(--ink); border-bottom-color: var(--amber); }

.header-cta { display: inline-flex; }

/* --------------------------------------------------------------- buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 12px 22px;
  font-size: 0.94rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius);
  max-width: 100%;
  overflow-wrap: anywhere;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}
@media (prefers-reduced-motion: reduce) { .btn { transition: none; } }

.btn-primary { background: var(--ink); color: #F5F6F4; border-color: var(--ink); }
.btn-primary:hover { background: var(--steel-700); border-color: var(--steel-700); }

.btn-outline { background: transparent; color: var(--ink); border-color: var(--line-2); }
.btn-outline:hover { border-color: var(--ink); background: var(--paper-raised); }

.band--dark .btn-primary { background: var(--on-dark); color: var(--steel-900); border-color: var(--on-dark); }
.band--dark .btn-primary:hover { background: #fff; border-color: #fff; }
.band--dark .btn-outline { color: var(--on-dark); border-color: var(--steel-line-2); }
.band--dark .btn-outline:hover { border-color: var(--on-dark-2); background: var(--steel-800); }

.btn-sm { min-height: 40px; padding: 9px 16px; font-size: 0.86rem; }

.textlink {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82rem;
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 1px solid var(--line-2);
  padding-bottom: 2px;
}
.textlink:hover { color: var(--ink); border-bottom-color: var(--amber); }
.band--dark .textlink { color: var(--on-dark-2); border-bottom-color: var(--steel-line-2); }
.band--dark .textlink:hover { color: var(--on-dark); border-bottom-color: var(--amber-bright); }

/* ------------------------------------------------------------------ hero */

.hero { padding: clamp(48px, 6vw, 88px) 0 clamp(64px, 7vw, 104px); }

.hero-grid { display: grid; gap: clamp(44px, 5vw, 64px); align-items: start; }
@media (min-width: 1000px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr); gap: 56px; align-items: center; }
}

.hero h1 { max-width: 15ch; margin-bottom: 20px; }
.hero .lede { max-width: 44ch; }

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 22px;
  padding: 6px 12px 6px 10px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: var(--paper-raised);
}
.hero-kicker .dot {
  width: 6px; height: 6px; flex: none;
  background: var(--amber);
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero-contact { margin-top: 20px; }

.hero-meta {
  display: grid;
  gap: 0;
  margin-top: 38px;
  border-top: 1px solid var(--line-2);
}
@media (min-width: 560px) { .hero-meta { grid-template-columns: repeat(3, 1fr); } }

.hero-meta div {
  padding: 14px 16px 14px 0;
  border-bottom: 1px solid var(--line);
}
@media (min-width: 560px) {
  .hero-meta div { border-bottom: none; padding-right: 20px; }
  .hero-meta div + div { border-left: 1px solid var(--line); padding-left: 20px; }
}
.hero-meta dt { margin: 0 0 4px; }
.hero-meta dd {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--ink);
}

/* ------------------------------------------------- hero architecture flow */

.arch {
  margin: 0;
  padding: 22px 20px 20px;
  background: var(--steel-900);
  border: 1px solid var(--steel-line);
  color: var(--on-dark);
}
@media (min-width: 560px) { .arch { padding: 26px 26px 24px; } }

.arch-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 14px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--steel-line);
}
.arch-head .label { color: var(--on-dark-3); }

.arch-node {
  border: 1px solid var(--steel-line-2);
  background: var(--steel-800);
  padding: 14px 16px;
}
.arch-node-top {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 4px;
}
.arch-node-idx {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.7rem;
  color: var(--on-dark-3);
}
.arch-node-name {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--on-dark);
}
.arch-node-sub {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--on-dark-3);
  margin: 0;
}

/* connector between nodes */
.arch-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 0 0 26px;
  position: relative;
  min-height: 46px;
}
.arch-link::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 1px;
  background-image: linear-gradient(var(--steel-line-2) 55%, transparent 55%);
  background-size: 1px 7px;
  background-repeat: repeat-y;
  animation: flow 1.4s linear infinite;
}
.arch-link .label {
  font-size: 0.71rem;
  color: var(--on-dark-3);
  letter-spacing: 0.06em;
}

@keyframes flow { to { background-position-y: 7px; } }

.arch-core {
  border: 1px solid var(--amber-bright);
  background: var(--steel-800);
}
.arch-core-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--steel-line-2);
}
.arch-core-name {
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.arch-lanes { display: grid; }
@media (min-width: 420px) { .arch-lanes { grid-template-columns: 1fr 1fr; } }

.arch-lane { padding: 14px 16px; }
.arch-lane + .arch-lane { border-top: 1px solid var(--steel-line); }
@media (min-width: 420px) {
  .arch-lane + .arch-lane { border-top: none; border-left: 1px solid var(--steel-line); }
}
.arch-lane-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--on-dark);
}
.arch-lane-title::before {
  content: "";
  width: 8px; height: 8px; flex: none;
  border: 2px solid var(--amber-bright);
}
.arch-lane--gov .arch-lane-title::before { border-color: var(--verify-bright); }
.arch-lane ul {
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
  line-height: 1.75;
  color: var(--on-dark-3);
}

.arch-foot {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--steel-line);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.7rem;
  line-height: 1.6;
  color: var(--on-dark-3);
  max-width: none;
}

/* -------------------------------------------------------------- products */

.product-grid { display: grid; gap: 1px; background: var(--line-2); border: 1px solid var(--line-2); }
@media (min-width: 860px) { .product-grid { grid-template-columns: 1fr 1fr; } }

.product {
  background: var(--paper-raised);
  padding: clamp(24px, 3vw, 36px);
  display: flex;
  flex-direction: column;
}
.product--paid { background: var(--paper); }

.product-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 20px;
}
.product-idx { margin-bottom: 10px; }
.product-name { font-size: 1.32rem; font-weight: 600; letter-spacing: -0.018em; margin: 0 0 6px; }
.product-role { font-size: 0.92rem; color: var(--ink-2); margin: 0; max-width: 34ch; }

.product-price {
  text-align: right;
  white-space: nowrap;
  flex: none;
}
.product-price b {
  display: block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.product-price span {
  display: block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.66rem;
  letter-spacing: 0.04em;
  color: var(--ink-3);
  margin-top: 4px;
  white-space: normal;
  max-width: 13ch;
}

.product-list { list-style: none; margin: 0 0 24px; padding: 0; flex: 1; }
.product-list li {
  display: flex;
  gap: 12px;
  padding: 9px 0;
  font-size: 0.93rem;
  color: var(--ink-2);
  border-bottom: 1px dotted var(--line);
}
.product-list li:last-child { border-bottom: none; }
.product-list li::before {
  content: "";
  width: 7px; height: 7px;
  margin-top: 8px;
  flex: none;
  border: 2px solid var(--amber);
}
.product--paid .product-list li::before { border-color: var(--verify); }

.product-note {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  line-height: 1.6;
  color: var(--ink-3);
  margin: 0 0 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  max-width: none;
}

.progression {
  margin-top: 28px;
  padding: 20px 22px;
  border: 1px solid var(--line-2);
  background: var(--paper-raised);
  display: grid;
  gap: 8px;
}
@media (min-width: 760px) {
  .progression { grid-template-columns: 200px 1fr; gap: 24px; align-items: baseline; }
}
.progression p { margin: 0; font-size: 0.93rem; max-width: 74ch; }

/* ----------------------------------------------- availability instrument */

.figure {
  margin: 0;
  border: 1px solid var(--line-2);
  background: var(--paper-raised);
}
.figure-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 20px;
  border-bottom: 1px solid var(--line);
}
.figure-body { padding: clamp(20px, 2.6vw, 30px) clamp(16px, 2.4vw, 28px); }
.figure figcaption {
  padding: 14px 20px;
  border-top: 1px solid var(--line);
  font-size: 0.86rem;
  color: var(--ink-3);
  max-width: none;
}

.qty { display: grid; gap: 14px; }
.qty-row {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr) 46px;
  align-items: center;
  gap: 12px;
}
@media (min-width: 560px) { .qty-row { grid-template-columns: 110px minmax(0, 1fr) 56px; gap: 18px; } }

.qty-name { font-size: 0.7rem; letter-spacing: 0.07em; text-transform: uppercase; color: var(--ink-3); font-family: "IBM Plex Mono", monospace; }
.qty-track { height: 26px; border: 1px solid var(--line-2); background: var(--paper); }
.qty-fill { height: 100%; }
.qty-fill--onhand { width: 100%; background: var(--steel-700); }
.qty-fill--reserved {
  width: 80%;
  background-color: var(--paper-sunk);
  background-image: repeating-linear-gradient(-45deg, var(--line-2) 0 2px, transparent 2px 7px);
  border-right: 2px solid var(--ink-3);
}
.qty-fill--free { width: 20%; background: var(--verify); }
.qty-value {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.95rem;
  font-weight: 600;
  text-align: right;
  color: var(--ink);
}
.qty-row--free .qty-name,
.qty-row--free .qty-value { color: var(--verify-text); }

.answer {
  margin-top: 26px;
  padding: 18px 20px;
  border: 1px solid var(--line-2);
  border-left: 3px solid var(--amber);
  background: var(--paper);
  display: grid;
  gap: 6px;
}
.answer-q { font-family: "IBM Plex Mono", monospace; font-size: 0.76rem; color: var(--ink-3); margin: 0; }
.answer-a { font-size: 1.02rem; font-weight: 600; color: var(--ink); margin: 0; max-width: none; }
.answer-n { font-size: 0.87rem; color: var(--ink-2); margin: 0; max-width: 62ch; }

/* ------------------------------------------------- semantic corrections */

.corr-grid { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 40px; }
@media (min-width: 720px) { .corr-grid { grid-template-columns: 1fr 1fr; } }

.corr { background: var(--paper); padding: 24px clamp(18px, 2.2vw, 26px); }
.corr-eq {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink);
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}
.corr-eq i { font-style: normal; color: var(--amber-text); padding: 0 4px; }
.corr p { font-size: 0.92rem; margin: 0; max-width: 46ch; }

/* ------------------------------------------------------ governance rail */

.rail {
  display: grid;
  gap: 0;
  border: 1px solid var(--steel-line-2);
  margin-bottom: clamp(40px, 5vw, 64px);
}
@media (min-width: 900px) { .rail { grid-template-columns: repeat(6, 1fr); } }

.rail-step {
  padding: 18px 18px 20px;
  border-bottom: 1px solid var(--steel-line);
  position: relative;
  background: var(--steel-800);
}
.rail-step:last-child { border-bottom: none; }
@media (min-width: 900px) {
  .rail-step { border-bottom: none; border-right: 1px solid var(--steel-line); }
  .rail-step:last-child { border-right: none; }
}
.rail-step-idx {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
  color: var(--on-dark-3);
  display: block;
  margin-bottom: 10px;
}
.rail-step h3 {
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin: 0 0 8px;
  color: var(--on-dark);
}
.rail-step p {
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--on-dark-3);
  margin: 0;
  max-width: none;
}
.rail-step--act { background: var(--steel-700); }
.rail-step--act h3 { color: var(--amber-bright); }

/* mechanisms */
.mech { display: grid; gap: 0; border-top: 1px solid var(--steel-line-2); }
@media (min-width: 880px) { .mech { grid-template-columns: 1fr 1fr; column-gap: 48px; } }

.mech-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--steel-line);
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 4px 12px;
}
.mech-idx { font-family: "IBM Plex Mono", monospace; font-size: 0.7rem; color: var(--on-dark-3); padding-top: 3px; }
.mech-item h3 { font-size: 0.98rem; margin: 0 0 6px; color: var(--on-dark); }
.mech-item p { grid-column: 2; margin: 0; font-size: 0.89rem; line-height: 1.55; color: var(--on-dark-2); max-width: 52ch; }

.disclaim {
  margin-top: clamp(40px, 5vw, 60px);
  border: 1px solid var(--steel-line-2);
  background: var(--steel-800);
  padding: clamp(22px, 2.6vw, 30px);
}
.disclaim .label { margin-bottom: 14px; }
.disclaim ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
@media (min-width: 880px) { .disclaim ul { grid-template-columns: repeat(3, 1fr); gap: 28px; } }
.disclaim li {
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--on-dark-2);
  padding-left: 18px;
  position: relative;
}
.disclaim li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--on-dark-3);
}

/* ------------------------------------------------------------ boundaries */

.bounds { border-top: 1px solid var(--line-2); }
.bound {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 4px 12px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
@media (min-width: 820px) {
  .bound { grid-template-columns: 44px 260px 1fr; align-items: baseline; gap: 24px; }
}
.bound-idx { font-family: "IBM Plex Mono", monospace; font-size: 0.72rem; color: var(--ink-3); }
.bound h3 { font-size: 0.95rem; margin: 0; }
.bound p { margin: 0; font-size: 0.91rem; max-width: 58ch; }
@media (max-width: 819px) { .bound h3, .bound p { grid-column: 2; } }

/* ------------------------------------------------------------- final cta */

.cta-grid { display: grid; gap: 1px; background: var(--steel-line); border: 1px solid var(--steel-line); }
@media (min-width: 760px) { .cta-grid { grid-template-columns: 1fr 1fr; } }

.cta-card { background: var(--steel-800); padding: clamp(26px, 3vw, 38px); display: flex; flex-direction: column; }
.cta-card .label { margin-bottom: 12px; }
.cta-card h3 { font-size: 1.22rem; margin: 0 0 8px; }
.cta-card p { font-size: 0.92rem; margin: 0 0 22px; flex: 1; color: var(--on-dark-2); max-width: 40ch; }
.cta-price {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  color: var(--on-dark-3);
  margin: 0 0 18px;
  max-width: none;
}

.cta-contact {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--steel-line);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 18px;
}
.cta-contact p { margin: 0; font-size: 0.9rem; color: var(--on-dark-2); }

/* ---------------------------------------------------------------- footer */

footer.site {
  background: var(--steel-900);
  color: var(--on-dark-2);
  padding: clamp(40px, 5vw, 60px) 0 32px;
  border-top: 1px solid var(--steel-line);
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 26px;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--steel-line);
}
@media (min-width: 760px) {
  .footer-inner { flex-direction: row; justify-content: space-between; align-items: flex-start; }
}
.footer-brand { display: flex; align-items: center; gap: 10px; margin: 0 0 12px; }
.footer-brand span { font-weight: 600; font-size: 1.02rem; color: var(--on-dark); }
.footer-meta {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
  line-height: 1.9;
  color: var(--on-dark-3);
  margin: 0;
  max-width: none;
}
.footer-links { display: flex; flex-wrap: wrap; gap: 10px 22px; font-size: 0.88rem; }
.footer-links a { text-decoration: none; color: var(--on-dark-2); padding: 4px 0; }
.footer-links a:hover { color: var(--on-dark); }

.footer-legal {
  margin-top: 22px;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--on-dark-3);
  max-width: 70ch;
}

/* ------------------------------------------------------- narrow viewport */

@media (max-width: 420px) {
  .wrap { padding: 0 16px; }
  .product, .cta-card { padding: 22px 18px; }
  .arch { padding: 18px 14px 16px; }
  .qty-row { grid-template-columns: 74px minmax(0, 1fr) 40px; gap: 10px; }
  .hero-kicker { font-size: 0.68rem; }
}

/* ----------------------------------------------------- reduced motion */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .arch-link::before { animation: none; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}