/* ============================================================
   Northline Exchange — editorial / bauhaus stylesheet
   System fonts only. No external requests. CSS-only linework.
   Palette: paper white, carbon, electric cobalt, warm orange.
   ============================================================ */

:root {
  --paper: #f6f4ef;
  --paper-2: #efece4;
  --carbon: #16181d;
  --carbon-soft: #2b2f38;
  --ink: #1d2027;
  --cobalt: #1f43ff;
  --cobalt-deep: #142fb8;
  --orange: #ff6a2b;
  --line: #16181d;
  --hair: rgba(22, 24, 29, 0.16);
  --muted: #565b66;
  --white: #ffffff;

  --maxw: 1200px;
  --gutter: clamp(1rem, 4vw, 3rem);
  --radius: 2px;

  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Code", "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;

  --step--1: clamp(0.78rem, 0.74rem + 0.2vw, 0.88rem);
  --step-0: clamp(0.98rem, 0.94rem + 0.25vw, 1.08rem);
  --step-1: clamp(1.2rem, 1.1rem + 0.5vw, 1.45rem);
  --step-2: clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --step-3: clamp(2rem, 1.6rem + 2vw, 3.1rem);
  --step-4: clamp(2.7rem, 2rem + 3.6vw, 5rem);
  --step-5: clamp(3.4rem, 2.2rem + 6vw, 7rem);
}

/* ----------------------------- Reset ----------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  font-size: var(--step-0);
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
ul, ol { list-style: none; padding: 0; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

h1, h2, h3, h4 { line-height: 1.05; letter-spacing: -0.02em; font-weight: 800; }

/* ------------------------ Accessibility ------------------------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 999;
  background: var(--carbon);
  color: var(--paper);
  padding: 0.75rem 1.1rem;
  font-weight: 700;
  border: 2px solid var(--cobalt);
}
.skip-link:focus { left: 0.5rem; top: 0.5rem; }

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

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

/* ------------------------- Layout helpers ----------------------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section { padding-block: clamp(3rem, 6vw, 6rem); }
.section--tight { padding-block: clamp(2rem, 4vw, 3.5rem); }
.rule { border: 0; border-top: 2px solid var(--line); }
.hair { border: 0; border-top: 1px solid var(--hair); }

.eyebrow {
  font-family: var(--mono);
  font-size: var(--step--1);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.eyebrow::before {
  content: "";
  width: 1.6rem;
  height: 2px;
  background: var(--orange);
}

/* --------------------------- Masthead --------------------------- */
.masthead {
  border-bottom: 3px solid var(--line);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 40;
}
.masthead__bar {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding-right: 1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.brand__mark {
  width: 30px; height: 30px;
  border: 2px solid var(--carbon);
  position: relative;
  flex: none;
  background:
    linear-gradient(var(--cobalt), var(--cobalt)) left top / 50% 100% no-repeat;
}
.brand__mark::after {
  content: "";
  position: absolute;
  right: -2px; bottom: -2px;
  width: 12px; height: 12px;
  background: var(--orange);
}
.brand__name { font-size: var(--step-1); line-height: 1; }
.brand__name small {
  display: block;
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.6rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 3px;
}

/* Primary nav */
.nav { display: flex; align-items: center; }
.nav__list {
  display: flex;
  align-items: stretch;
  gap: 0;
}
.nav__list a {
  display: inline-flex;
  align-items: center;
  padding: 0 1rem;
  min-height: 44px;
  font-size: var(--step--1);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-left: 1px solid var(--hair);
  transition: background 0.15s ease, color 0.15s ease;
}
.nav__list a:hover { background: var(--carbon); color: var(--paper); }
.nav__list a[aria-current="page"] { color: var(--cobalt); }

.nav__cta {
  background: var(--cobalt) !important;
  color: var(--white) !important;
  border-left: 1px solid var(--cobalt) !important;
}
.nav__cta:hover { background: var(--cobalt-deep) !important; }

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 48px; height: 48px;
  background: transparent;
  border: 2px solid var(--carbon);
  flex-direction: column;
}
.nav-toggle span {
  display: block;
  width: 20px; height: 2px;
  background: var(--carbon);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    position: absolute;
    inset: 100% 0 auto 0;
    background: var(--paper);
    border-bottom: 3px solid var(--line);
    display: none;
  }
  .nav.is-open { display: block; }
  .nav__list { flex-direction: column; }
  .nav__list a {
    border-left: 0;
    border-top: 1px solid var(--hair);
    padding-inline: var(--gutter);
    min-height: 52px;
  }
  .masthead__bar { align-items: center; }
}

/* --------------------------- Issue strip ------------------------ */
.issue-strip {
  border-bottom: 2px solid var(--line);
  background: var(--carbon);
  color: var(--paper);
}
.issue-strip__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  padding-block: 0.5rem;
  font-family: var(--mono);
  font-size: var(--step--1);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.issue-strip__inner span { display: inline-flex; align-items: center; gap: 0.5rem; }
.issue-strip b { color: var(--orange); }

/* --------------------------- Hero / masthead lead --------------- */
.lede {
  border-bottom: 3px solid var(--line);
  background:
    repeating-linear-gradient(90deg, transparent 0 calc(100% / 12 - 1px), var(--hair) calc(100% / 12 - 1px) calc(100% / 12));
}
.lede__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 0;
}
.lede__main { padding: clamp(2rem, 5vw, 4.5rem) var(--gutter) clamp(2rem, 4vw, 3rem); border-right: 2px solid var(--line); }
.lede__side {
  padding: clamp(1.5rem, 3vw, 2.5rem) var(--gutter);
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  background: var(--paper-2);
}
.lede__index {
  font-family: var(--mono);
  font-size: var(--step--1);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--hair);
  padding-bottom: 0.6rem;
  margin-bottom: 1.4rem;
}
.headline {
  font-size: var(--step-5);
  letter-spacing: -0.03em;
  margin-bottom: 1.2rem;
}
.headline em {
  font-style: normal;
  color: var(--cobalt);
  position: relative;
}
.headline .dot { color: var(--orange); }
.lede__standfirst {
  font-size: var(--step-1);
  max-width: 40ch;
  color: var(--carbon-soft);
  font-weight: 500;
}
.lede__meta {
  border-top: 1px solid var(--hair);
  padding-top: 0.8rem;
  font-family: var(--mono);
  font-size: var(--step--1);
  color: var(--muted);
}
.lede__meta strong { color: var(--ink); }

@media (max-width: 800px) {
  .lede__grid { grid-template-columns: 1fr; }
  .lede__main { border-right: 0; border-bottom: 2px solid var(--line); }
}

/* ------------------------------ Buttons ------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0 1.4rem;
  font-weight: 700;
  font-size: var(--step--1);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 2px solid var(--carbon);
  background: var(--carbon);
  color: var(--paper);
  transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.btn:hover { background: var(--cobalt); border-color: var(--cobalt); color: var(--white); transform: translateY(-2px); }
.btn--ghost { background: transparent; color: var(--carbon); }
.btn--ghost:hover { background: var(--carbon); color: var(--paper); }
.btn--orange { background: var(--orange); border-color: var(--orange); color: var(--carbon); }
.btn--orange:hover { background: var(--carbon); border-color: var(--carbon); color: var(--paper); }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 1.6rem; }

/* ------------------------------ Bento --------------------------- */
.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
  border-bottom: 2px solid var(--line);
  padding-bottom: 1rem;
}
.section-head h2 { font-size: var(--step-3); }
.section-head p { color: var(--muted); max-width: 46ch; }

.bento {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  background: var(--line);
  border: 2px solid var(--line);
}
.cell {
  background: var(--paper);
  padding: clamp(1.3rem, 2.5vw, 2rem);
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  min-height: 180px;
}
.cell--wide { grid-column: span 4; }
.cell--half { grid-column: span 3; }
.cell--third { grid-column: span 2; }
.cell--full { grid-column: span 6; }
.cell--dark { background: var(--carbon); color: var(--paper); }
.cell--dark .cell__kicker { color: var(--orange); }
.cell--cobalt { background: var(--cobalt); color: var(--white); }
.cell--cobalt .cell__kicker { color: var(--paper); }
.cell__kicker {
  font-family: var(--mono);
  font-size: var(--step--1);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--cobalt);
}
.cell h3 { font-size: var(--step-1); }
.cell p { color: inherit; opacity: 0.92; }
.cell--dark p, .cell--cobalt p { opacity: 0.86; }
.cell__num {
  font-family: var(--mono);
  font-size: var(--step-4);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
}
.cell__link {
  margin-top: auto;
  font-weight: 700;
  text-transform: uppercase;
  font-size: var(--step--1);
  letter-spacing: 0.06em;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border-bottom: 2px solid currentColor;
  align-self: flex-start;
  padding-bottom: 2px;
  min-height: 24px;
}
.cell__link:hover { color: var(--cobalt); }
.cell--dark .cell__link:hover, .cell--cobalt .cell__link:hover { color: var(--orange); }

@media (max-width: 860px) {
  .cell--wide, .cell--half { grid-column: span 3; }
  .cell--third { grid-column: span 3; }
}
@media (max-width: 560px) {
  .bento { grid-template-columns: 1fr; }
  .cell, .cell--wide, .cell--half, .cell--third, .cell--full { grid-column: 1 / -1; }
}

/* --------------------------- Timeline (48h) --------------------- */
.plan { background: var(--carbon); color: var(--paper); }
.plan .section-head { border-color: rgba(246,244,239,0.25); }
.plan .section-head p { color: rgba(246,244,239,0.7); }
.timeline {
  display: grid;
  gap: 0;
  border-top: 1px solid rgba(246,244,239,0.2);
}
.tl-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: clamp(1rem, 3vw, 2.5rem);
  padding-block: 1.6rem;
  border-bottom: 1px solid rgba(246,244,239,0.2);
  position: relative;
}
.tl-item__time {
  font-family: var(--mono);
  font-size: var(--step-1);
  color: var(--orange);
  font-weight: 700;
  letter-spacing: 0.02em;
}
.tl-item__time small {
  display: block;
  color: rgba(246,244,239,0.55);
  font-size: var(--step--1);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-top: 4px;
}
.tl-item__body h3 { font-size: var(--step-1); margin-bottom: 0.4rem; }
.tl-item__body p { color: rgba(246,244,239,0.8); max-width: 60ch; }
.tl-day {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: var(--step--1);
  color: var(--cobalt);
  padding-top: 1.4rem;
  filter: brightness(1.6);
}
@media (max-width: 620px) {
  .tl-item { grid-template-columns: 1fr; gap: 0.5rem; }
}

/* --------------------------- Feature list ----------------------- */
.stack { display: grid; gap: 1px; background: var(--line); border: 2px solid var(--line); }
.stack__row {
  background: var(--paper);
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: clamp(1rem, 3vw, 2rem);
  padding: clamp(1.2rem, 2.5vw, 1.8rem);
  align-items: start;
}
.stack__row .idx {
  font-family: var(--mono);
  font-size: var(--step-2);
  color: var(--cobalt);
  font-weight: 800;
}
.stack__row h3 { font-size: var(--step-1); margin-bottom: 0.35rem; }
.stack__row p { color: var(--muted); max-width: 62ch; }
@media (max-width: 560px) {
  .stack__row { grid-template-columns: 1fr; gap: 0.4rem; }
}

/* ------------------------------ Prose --------------------------- */
.prose { max-width: 72ch; }
.prose p, .prose ul, .prose ol { margin-bottom: 1.1rem; }
.prose h2 { font-size: var(--step-2); margin: 2.2rem 0 0.9rem; }
.prose h3 { font-size: var(--step-1); margin: 1.6rem 0 0.6rem; }
.prose ul.bullets { list-style: none; }
.prose ul.bullets li {
  position: relative;
  padding-left: 1.6rem;
  margin-bottom: 0.5rem;
}
.prose ul.bullets li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.55em;
  width: 0.7rem; height: 2px;
  background: var(--orange);
}
.prose a.inline { color: var(--cobalt); border-bottom: 1px solid var(--cobalt); }
.prose a.inline:hover { color: var(--cobalt-deep); }
.prose strong { color: var(--ink); }

/* ------------------------- Two-column page ---------------------- */
.doc {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: clamp(1.5rem, 4vw, 4rem);
}
.doc__aside { position: sticky; top: 96px; align-self: start; }
.doc__toc { border-left: 2px solid var(--line); padding-left: 1rem; display: grid; gap: 0.5rem; }
.doc__toc a { font-size: var(--step--1); color: var(--muted); min-height: 28px; display: inline-flex; align-items: center; }
.doc__toc a:hover { color: var(--cobalt); }
@media (max-width: 820px) {
  .doc { grid-template-columns: 1fr; }
  .doc__aside { position: static; }
}

/* --------------------------- Callout ---------------------------- */
.callout {
  border: 2px solid var(--line);
  border-left: 8px solid var(--orange);
  padding: clamp(1.2rem, 3vw, 1.8rem);
  background: var(--paper-2);
  margin-block: 1.6rem;
}
.callout h3 { font-size: var(--step-1); margin-bottom: 0.4rem; }
.callout--cobalt { border-left-color: var(--cobalt); }

/* --------------------------- Cards grid ------------------------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
@media (max-width: 820px) { .grid-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card {
  border: 2px solid var(--line);
  padding: clamp(1.2rem, 2.5vw, 1.7rem);
  background: var(--paper);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  min-height: 100%;
}
.card__tag {
  font-family: var(--mono);
  font-size: var(--step--1);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cobalt);
}
.card h3 { font-size: var(--step-1); }
.card p { color: var(--muted); }
.card__meta { margin-top: auto; font-family: var(--mono); font-size: var(--step--1); color: var(--muted); border-top: 1px solid var(--hair); padding-top: 0.6rem; }

/* --------------------------- Spec table ------------------------- */
.spec { width: 100%; border-collapse: collapse; border: 2px solid var(--line); }
.spec caption { text-align: left; font-family: var(--mono); font-size: var(--step--1); text-transform: uppercase; letter-spacing: 0.14em; color: var(--muted); padding-bottom: 0.6rem; }
.spec th, .spec td { text-align: left; padding: 0.85rem 1rem; border-bottom: 1px solid var(--hair); vertical-align: top; }
.spec tr:last-child td { border-bottom: 0; }
.spec th { width: 34%; font-family: var(--mono); font-weight: 600; color: var(--ink); background: var(--paper-2); }

/* --------------------------- FAQ / accordion -------------------- */
.faq-list { border-top: 2px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--hair); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  text-align: left;
  background: transparent;
  border: 0;
  padding: 1.2rem 0.2rem;
  min-height: 56px;
  font-size: var(--step-1);
  font-weight: 700;
  color: var(--ink);
}
.faq-q:hover { color: var(--cobalt); }
.faq-q .sign {
  flex: none;
  width: 30px; height: 30px;
  border: 2px solid var(--carbon);
  position: relative;
}
.faq-q .sign::before, .faq-q .sign::after {
  content: ""; position: absolute; background: var(--carbon);
  left: 50%; top: 50%; transform: translate(-50%, -50%);
}
.faq-q .sign::before { width: 12px; height: 2px; }
.faq-q .sign::after { width: 2px; height: 12px; transition: transform 0.2s ease; }
.faq-q[aria-expanded="true"] .sign::after { transform: translate(-50%, -50%) scaleY(0); }
.faq-a { display: none; padding: 0 0.2rem 1.4rem; max-width: 72ch; color: var(--carbon-soft); }
.faq-a p { margin-bottom: 0.8rem; }
.faq-item.is-open .faq-a { display: block; }

/* --------------------------- Contact form ----------------------- */
.form {
  display: grid;
  gap: 1.1rem;
  border: 2px solid var(--line);
  padding: clamp(1.4rem, 3vw, 2.2rem);
  background: var(--paper);
}
.field { display: grid; gap: 0.4rem; }
.field label { font-weight: 700; font-size: var(--step--1); text-transform: uppercase; letter-spacing: 0.08em; }
.field .hint { font-size: var(--step--1); color: var(--muted); text-transform: none; letter-spacing: 0; font-weight: 400; }
.field input, .field select, .field textarea {
  font: inherit;
  color: var(--ink);
  background: var(--paper-2);
  border: 2px solid var(--carbon);
  padding: 0.7rem 0.9rem;
  min-height: 48px;
  border-radius: var(--radius);
}
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 3px solid var(--cobalt);
  outline-offset: 1px;
  background: var(--white);
}
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
@media (max-width: 560px) { .form__row { grid-template-columns: 1fr; } }
.form__status { font-family: var(--mono); font-size: var(--step--1); color: var(--cobalt); min-height: 1.2em; }

/* --------------------------- Contact aside ---------------------- */
.contact-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: clamp(1.5rem, 4vw, 3rem); align-items: start; }
@media (max-width: 820px) { .contact-grid { grid-template-columns: 1fr; } }
.info-block { border: 2px solid var(--line); padding: 1.4rem; margin-bottom: 1.2rem; background: var(--paper); }
.info-block h3 { font-size: var(--step-1); margin-bottom: 0.5rem; }
.info-block a.inline { color: var(--cobalt); border-bottom: 1px solid var(--cobalt); }

/* --------------------------- Pill / badges ---------------------- */
.pills { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.6rem; }
.pill {
  font-family: var(--mono);
  font-size: var(--step--1);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1.5px solid var(--carbon);
  padding: 0.3rem 0.7rem;
  min-height: 30px;
  display: inline-flex;
  align-items: center;
}
.pill--orange { border-color: var(--orange); color: var(--orange); }
.pill--cobalt { border-color: var(--cobalt); color: var(--cobalt); }

/* --------------------------- Page header ------------------------ */
.page-head {
  border-bottom: 3px solid var(--line);
  background:
    repeating-linear-gradient(90deg, transparent 0 calc(100% / 12 - 1px), var(--hair) calc(100% / 12 - 1px) calc(100% / 12));
}
.page-head__inner { padding-block: clamp(2.2rem, 5vw, 4rem); }
.page-head h1 { font-size: var(--step-4); margin: 0.8rem 0 1rem; max-width: 22ch; }
.page-head p { font-size: var(--step-1); color: var(--carbon-soft); max-width: 56ch; }
.crumbs { font-family: var(--mono); font-size: var(--step--1); color: var(--muted); text-transform: uppercase; letter-spacing: 0.1em; display: flex; gap: 0.5rem; flex-wrap: wrap; }
.crumbs a:hover { color: var(--cobalt); }
.crumbs span { color: var(--orange); }

/* --------------------------- Marquee note ----------------------- */
.notice-band {
  background: var(--orange);
  color: var(--carbon);
  border-block: 2px solid var(--line);
}
.notice-band__inner {
  padding-block: 0.9rem;
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
  font-weight: 700;
  font-size: var(--step--1);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.notice-band__inner .tag { background: var(--carbon); color: var(--orange); padding: 0.2rem 0.6rem; font-family: var(--mono); }

/* ------------------------------ Footer -------------------------- */
.foot {
  background: var(--carbon);
  color: var(--paper);
  border-top: 3px solid var(--orange);
}
.foot__top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  padding-block: clamp(2.2rem, 4vw, 3rem);
}
.foot__brand .brand__name { color: var(--paper); }
.foot__brand p { color: rgba(246,244,239,0.7); max-width: 38ch; margin-top: 0.8rem; }
.foot h4 { font-family: var(--mono); font-size: var(--step--1); text-transform: uppercase; letter-spacing: 0.16em; color: var(--orange); margin-bottom: 1rem; }
.foot__links { display: grid; gap: 0.55rem; }
.foot__links a { color: rgba(246,244,239,0.82); min-height: 28px; display: inline-flex; align-items: center; }
.foot__links a:hover { color: var(--white); }
.foot__contact a.inline { color: var(--paper); border-bottom: 1px solid var(--orange); }
.foot__bottom {
  border-top: 1px solid rgba(246,244,239,0.2);
  padding-block: 1.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  justify-content: space-between;
  align-items: center;
  font-family: var(--mono);
  font-size: var(--step--1);
  color: rgba(246,244,239,0.6);
}
.foot__bottom .legal-mini { display: flex; gap: 1rem; flex-wrap: wrap; }
.foot__bottom .legal-mini a:hover { color: var(--white); }
@media (max-width: 720px) {
  .foot__top { grid-template-columns: 1fr; }
}

/* --------------------------- 404 -------------------------------- */
.err {
  min-height: 60vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding-block: 4rem;
}
.err__code {
  font-family: var(--mono);
  font-size: clamp(4rem, 20vw, 12rem);
  font-weight: 800;
  line-height: 0.9;
  color: var(--cobalt);
  letter-spacing: -0.04em;
}
.err__code b { color: var(--orange); }

/* --------------------------- Utility ---------------------------- */
.lead { font-size: var(--step-1); color: var(--carbon-soft); max-width: 60ch; }
.mono { font-family: var(--mono); }
.mt-0 { margin-top: 0; }
.center { text-align: center; }
.tag-line { font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }

/* --------------------------- Motion ----------------------------- */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  .btn:hover { transform: none; }
}