/* ===========================================================
   Sleuth Forensics
   Type   Source Serif 4 (optical sizing) + IBM Plex Mono
   Colour warm paper, ink, one vermilion accent
   =========================================================== */

/* --- 1. Tokens ------------------------------------------- */

:root {
  /* The palette is printed paper and ink. There is no dark variant, so pin
     the browser's own chrome to light rather than let it guess. */
  color-scheme: light;

  /* Surface */
  --paper:        #f2efe8;
  --paper-raised: #f8f6f1;
  --ink:          #191a18;

  /* Text */
  --text:          #191a18;
  --text-2:        #3d3f3a;  /*  9.3:1 on paper */
  --text-3:        #63655f;  /*  5.1:1 on paper */
  --text-on-ink:   #f2efe8;  /* 15.2:1 on ink   */
  --text-2-on-ink: #a8a79e;  /*  7.2:1 on ink   */

  /* Accent */
  --mark:        #b2381f;  /*  5.4:1 on paper */
  --mark-deep:   #8d2b16;
  --mark-on-ink: #e4714f;  /*  5.6:1 on ink   */

  /* Lines */
  --rule:        #dcd6c9;
  --rule-strong: #c3bcab;
  --rule-input:  #8d887c;  /*  3.1:1 — UI border */
  --rule-on-ink: #35372f;

  /* Type */
  --serif: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --mono:  'IBM Plex Mono', ui-monospace, SFMono-Regular, Consolas, monospace;

  --t-display: clamp(2.6rem, 1.35rem + 5.3vw, 5.75rem);
  --t-h1:      clamp(2.15rem, 1.35rem + 3.4vw, 4rem);
  --t-h2:      clamp(1.7rem, 1.28rem + 1.8vw, 2.7rem);
  --t-h3:      clamp(1.15rem, 1.08rem + 0.3vw, 1.35rem);
  --t-lead:    clamp(1.1rem, 1.02rem + 0.42vw, 1.4rem);
  --t-body:    1.0625rem;
  --t-small:   0.9375rem;
  --t-meta:    0.8125rem;
  --t-label:   0.6875rem;

  /* Space */
  --s1: 0.25rem;  --s2: 0.5rem;  --s3: 0.75rem;  --s4: 1rem;
  --s5: 1.5rem;   --s6: 2rem;    --s7: 3rem;     --s8: 4rem;

  --section-y: clamp(3.5rem, 2rem + 6vw, 7.5rem);
  --gutter:    clamp(1.25rem, 0.5rem + 3.2vw, 3.5rem);
  --measure:   66ch;

  --bar-h: 3.75rem;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --fast: 160ms var(--ease);
  --base: 260ms var(--ease);
}

/* --- 2. Reset -------------------------------------------- */

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--bar-h) + 1.5rem);
}

body {
  background: var(--paper);
  color: var(--text);
  font-family: var(--serif);
  font-size: var(--t-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

img, svg { display: block; max-width: 100%; }
address { font-style: normal; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
ul, ol { list-style: none; padding: 0; }

::selection { background: var(--mark); color: var(--paper); }

:focus-visible {
  outline: 2px solid var(--mark);
  outline-offset: 3px;
  border-radius: 1px;
}
.on-ink :focus-visible { outline-color: var(--mark-on-ink); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
  }
}

/* --- 3. Type roles --------------------------------------- */

h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.018em;
  text-wrap: balance;
}

.display {
  font-size: var(--t-display);
  line-height: 0.99;
  letter-spacing: -0.032em;
}

.h1 { font-size: var(--t-h1); letter-spacing: -0.026em; }
.h2 { font-size: var(--t-h2); letter-spacing: -0.022em; }
.h3 { font-size: var(--t-h3); line-height: 1.25; }

.lead {
  font-size: var(--t-lead);
  line-height: 1.55;
  color: var(--text-2);
  max-width: 46ch;
  text-wrap: pretty;
}

.label {
  font-family: var(--mono);
  font-size: var(--t-label);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  display: block;
}

.meta {
  font-family: var(--mono);
  font-size: var(--t-meta);
  line-height: 1.6;
  color: var(--text-3);
}

.num {
  font-family: var(--mono);
  font-size: var(--t-meta);
  letter-spacing: 0.04em;
  color: var(--mark);
}

/* --- 4. Links -------------------------------------------- */

a { color: inherit; }

.link-u {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--rule-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  transition: text-decoration-color var(--fast), color var(--fast);
}
.link-u:hover { color: var(--mark); text-decoration-color: currentColor; }

.cta {
  display: inline-flex;
  align-items: baseline;
  gap: 0.55em;
  padding-block: 0.3rem; /* keeps a standalone call to action >= 24px tall */
  font-family: var(--mono);
  font-size: var(--t-meta);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text);
  transition: color var(--fast);
}
.cta::after {
  content: "\2192";
  font-family: var(--serif);
  transition: transform var(--base);
}
.cta:hover { color: var(--mark); }
.cta:hover::after { transform: translateX(0.28em); }

/* --- 5. Buttons ------------------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  font-family: var(--mono);
  font-size: var(--t-meta);
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.9em 1.6em;
  border: 1px solid transparent;
  border-radius: 0;
  min-height: 44px;
  transition: background-color var(--fast), color var(--fast), border-color var(--fast);
}

.btn--solid { background: var(--ink); color: var(--paper); }
.btn--solid:hover { background: var(--mark); }

.btn--line { border-color: var(--rule-input); color: var(--text); }
.btn--line:hover { border-color: var(--ink); background: var(--ink); color: var(--paper); }

.on-ink .btn--solid { background: var(--paper); color: var(--ink); }
.on-ink .btn--solid:hover { background: var(--mark-on-ink); color: var(--ink); }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s3);
  align-items: center;
}
/* Below this width two buttons never sit side by side without raggedness. */
@media (max-width: 30rem) {
  .btn-row { flex-direction: column; align-items: stretch; }
}

/* --- 6. Layout ------------------------------------------- */

.wrap {
  width: 100%;
  max-width: 78rem;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

main { flex: 1 0 auto; }

.section { padding-block: var(--section-y); }

.section--ruled { border-top: 1px solid var(--rule); position: relative; }
.section--ruled::before {
  content: "";
  position: absolute;
  top: -1px; left: 0;
  width: 3.5rem; height: 1px;
  background: var(--mark);
}

.on-ink { background: var(--ink); color: var(--text-on-ink); }
.on-ink .label,
.on-ink .lead { color: var(--text-2-on-ink); }
.on-ink .num { color: var(--mark-on-ink); }

/* Editorial split: marginal label column + content column */
.split {
  display: grid;
  gap: var(--s5);
  grid-template-columns: 1fr;
}
@media (min-width: 60rem) {
  .split {
    grid-template-columns: minmax(8rem, 1fr) minmax(0, 4.1fr);
    gap: var(--s7) clamp(2rem, 5vw, 5rem);
  }
  .split__aside { padding-top: 0.5rem; }
}

.section-head {
  display: grid;
  gap: var(--s4);
  margin-bottom: var(--s7);
}
@media (min-width: 60rem) {
  .section-head {
    grid-template-columns: minmax(8rem, 1fr) minmax(0, 4.1fr);
    gap: var(--s7) clamp(2rem, 5vw, 5rem);
    align-items: start;
  }
  .section-head .label { padding-top: 0.5rem; }
}
.section-head__body > * + * { margin-top: var(--s4); }

/* --- 7. Masthead ----------------------------------------- */

.skip {
  position: absolute;
  left: var(--s4); top: -4rem;
  z-index: 200;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  font-size: var(--t-meta);
  padding: 0.75rem 1.1rem;
  text-decoration: none;
  transition: top var(--fast);
}
.skip:focus { top: var(--s2); }

.masthead {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--paper);
  border-bottom: 1px solid transparent;
  transition: border-color var(--fast);
}
.masthead[data-scrolled="true"],
.masthead[data-open="true"] { border-bottom-color: var(--rule); }

.masthead__bar {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.4vw, 2rem);
  min-height: var(--bar-h);
}

.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 0.34em;
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  text-decoration: none;
  white-space: nowrap;
  margin-right: auto;
}
.wordmark span { color: var(--text-3); font-weight: 400; }
.wordmark::after {
  content: "";
  width: 0.36em; height: 0.36em;
  background: var(--mark);
  transition: transform var(--base);
}
.wordmark:hover::after { transform: translateY(-0.3em); }

.nav {
  display: none;
  align-items: center;
  gap: clamp(1rem, 2.4vw, 2rem);
}
@media (min-width: 62rem) { .nav { display: flex; } }

.nav__item {
  font-family: var(--mono);
  font-size: var(--t-meta);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text-2);
  padding: 0.35rem 0;
  border-bottom: 1px solid transparent;
  white-space: nowrap;
  transition: color var(--fast), border-color var(--fast);
}
.nav__item:hover { color: var(--text); border-bottom-color: var(--mark); }
.nav__item[aria-current="page"] { color: var(--text); border-bottom-color: var(--ink); }

.nav__toggle { display: inline-flex; align-items: center; gap: 0.55em; }
.nav__toggle::after {
  content: "";
  width: 0.4em; height: 0.4em;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: translateY(-0.18em) rotate(45deg);
  transition: transform var(--base);
}
.nav__toggle[aria-expanded="true"]::after { transform: translateY(0.08em) rotate(225deg); }
.nav__toggle[aria-expanded="true"] { color: var(--text); border-bottom-color: var(--mark); }

.burger {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  gap: 5px;
  width: 44px; height: 44px;
  margin-right: -0.65rem;
}
.burger span {
  display: block;
  width: 20px; height: 1.5px;
  background: var(--ink);
  transition: transform var(--base), opacity var(--fast), width var(--base);
}
.burger span:nth-child(2) { width: 13px; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { width: 20px; transform: translateY(-6.5px) rotate(-45deg); }
@media (min-width: 62rem) { .burger { display: none; } }

/* --- 8. Index panel (services menu / mobile nav) --------- */

.panel {
  position: fixed;
  inset: var(--bar-h) 0 0;
  z-index: 90;
  background: var(--paper);
  overflow-y: auto;
  overscroll-behavior: contain;
  border-top: 1px solid var(--rule);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-0.5rem);
  transition: opacity var(--base), transform var(--base), visibility var(--base);
}
.panel[data-open="true"] { opacity: 1; visibility: visible; transform: none; }

@media (min-width: 62rem) {
  .panel {
    position: absolute;
    inset: auto 0 auto 0;
    top: 100%;
    max-height: calc(100vh - var(--bar-h));
    border-bottom: 1px solid var(--rule);
  }
}

/* Separates the open dropdown from the page behind it. Below 62rem the
   panel covers the viewport on its own, so the scrim stays out of the way. */
.scrim {
  position: fixed;
  inset: var(--bar-h) 0 0;
  z-index: 80;
  background: rgba(25, 26, 24, 0.32);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--base), visibility var(--base);
}
@media (min-width: 62rem) {
  .masthead[data-open="true"] .scrim {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
}

.panel__inner { padding-block: var(--s6) var(--s8); }

.panel__primary {
  display: grid;
  border-bottom: 1px solid var(--rule);
  padding-bottom: var(--s5);
  margin-bottom: var(--s5);
}
@media (min-width: 62rem) { .panel__primary { display: none; } }

.panel__primary a {
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  text-decoration: none;
  padding: 0.45rem 0;
  transition: color var(--fast);
}
.panel__primary a:hover { color: var(--mark); }
.panel__primary a[aria-current="page"] { color: var(--mark); }

.panel__groups { display: grid; gap: var(--s6) clamp(1.5rem, 3vw, 3rem); }
@media (min-width: 48rem) { .panel__groups { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 62rem) {
  .panel__groups { grid-template-columns: repeat(3, 1fr); gap: var(--s6) clamp(2rem, 4vw, 4rem); }
}

.panel__group h2 {
  font-family: var(--mono);
  font-size: var(--t-label);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  padding-bottom: var(--s3);
  border-bottom: 1px solid var(--rule);
  margin-bottom: var(--s2);
}

.idx { display: grid; }
.idx a {
  display: grid;
  grid-template-columns: 2.25rem 1fr;
  align-items: baseline;
  gap: 0.25rem;
  padding: 0.42rem 0;
  text-decoration: none;
  font-size: var(--t-small);
  line-height: 1.4;
  color: var(--text-2);
  transition: color var(--fast);
}
.idx a:hover,
.idx a:hover .idx__n { color: var(--mark); }
.idx__n {
  font-family: var(--mono);
  font-size: var(--t-label);
  letter-spacing: 0.06em;
  color: var(--text-3);
  transition: color var(--fast);
}
.idx a[aria-current="page"] { color: var(--text); font-weight: 600; }
.idx a[aria-current="page"] .idx__n { color: var(--mark); }

.panel__foot {
  margin-top: var(--s6);
  padding-top: var(--s5);
  border-top: 1px solid var(--rule);
  display: flex;
  flex-wrap: wrap;
  gap: var(--s3) var(--s6);
  align-items: baseline;
  justify-content: space-between;
}

body[data-locked="true"] { overflow: hidden; }

/* --- 9. Hero --------------------------------------------- */

.hero { padding-block: clamp(3rem, 1.5rem + 7vw, 8rem) clamp(2.5rem, 1rem + 5vw, 5.5rem); }
.hero__eyebrow { margin-bottom: clamp(1.5rem, 4vw, 2.75rem); }
.hero__title { margin-bottom: clamp(1.5rem, 3vw, 2.25rem); max-width: 17ch; }
/* Break the headline on its own sentences once there is room for them. */
@media (min-width: 56rem) {
  .hero__title { max-width: none; }
  .hero__title span { display: block; }
}

.hero__body {
  display: grid;
  gap: var(--s6) clamp(2rem, 6vw, 6rem);
  align-items: start;
}
@media (min-width: 62rem) {
  .hero__body { grid-template-columns: minmax(0, 1.35fr) minmax(15rem, 0.65fr); }
}

.hero__lead { max-width: 50ch; margin-bottom: var(--s6); }

/* Colophon-style fact table */
.facts { border-top: 1px solid var(--rule); }
.facts > div {
  display: grid;
  grid-template-columns: minmax(5rem, 7rem) 1fr;
  gap: var(--s3);
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: var(--t-meta);
  line-height: 1.5;
}
.facts dt {
  color: var(--text-3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: var(--t-label);
  padding-top: 0.2em;
}
.facts dd { color: var(--text-2); }
.facts a {
  text-decoration: none;
  border-bottom: 1px solid var(--rule-strong);
  transition: color var(--fast), border-color var(--fast);
}
.facts a:hover { color: var(--mark); border-color: var(--mark); }

/* --- 10. Statement --------------------------------------- */

.statement {
  font-size: clamp(1.45rem, 1.05rem + 1.7vw, 2.4rem);
  line-height: 1.26;
  letter-spacing: -0.024em;
  font-weight: 400;
  text-wrap: pretty;
}
.statement strong { font-weight: 600; }
@media (min-width: 48rem) {
  .statement { max-width: 26ch; text-wrap: balance; }
}

/* --- 11. Practice index ---------------------------------- */

.practice { border-top: 1px solid var(--rule); padding-top: var(--s5); }
.practice + .practice { margin-top: var(--s8); }

.practice__head { margin-bottom: var(--s5); }
.practice__title {
  font-size: clamp(1.5rem, 1.15rem + 1.5vw, 2.2rem);
  letter-spacing: -0.024em;
  margin-block: 0.4rem 0.6rem;
}
.practice__desc { color: var(--text-2); max-width: 56ch; }

.svc-list { border-top: 1px solid var(--rule); }

.svc {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  align-items: baseline;
  gap: 0.2rem var(--s3);
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--rule);
  text-decoration: none;
  transition: background-color var(--fast), padding-left var(--base);
}
.svc:hover { background: var(--paper-raised); padding-left: 0.6rem; }
.svc:hover .svc__name { color: var(--mark); }

.svc__n {
  font-family: var(--mono);
  font-size: var(--t-label);
  letter-spacing: 0.06em;
  color: var(--text-3);
  padding-top: 0.3em;
}
.svc__name {
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.3;
  transition: color var(--fast);
}
.svc__desc {
  grid-column: 2;
  font-size: var(--t-small);
  color: var(--text-3);
  line-height: 1.55;
  max-width: 62ch;
  margin-top: 0.25rem;
}
@media (min-width: 62rem) {
  .svc { grid-template-columns: 2.5rem minmax(0, 1.05fr) minmax(0, 1.3fr); }
  .svc__desc { grid-column: 3; margin-top: 0; }
}

.svc--flag .svc__name { color: var(--mark); }
.svc--flag .svc__desc em { font-style: italic; color: var(--text-2); }

/* --- 12. Numbered steps ---------------------------------- */

.steps { display: grid; border-top: 1px solid var(--rule); }
@media (min-width: 48rem) {
  .steps { grid-template-columns: repeat(2, 1fr); column-gap: clamp(2rem, 5vw, 5rem); }
}
@media (min-width: 72rem) { .steps { grid-template-columns: repeat(3, 1fr); } }

.step { padding: var(--s5) 0; border-bottom: 1px solid var(--rule); }
.step__n {
  font-family: var(--mono);
  font-size: var(--t-label);
  letter-spacing: 0.1em;
  color: var(--mark);
  display: block;
  margin-bottom: 0.7rem;
}
.step h3 { margin-bottom: 0.45rem; font-size: var(--t-h3); }
.step p { font-size: var(--t-small); color: var(--text-3); line-height: 1.6; max-width: 42ch; }

/* --- 13. Report contents (dark) -------------------------- */

.contents { border-top: 1px solid var(--rule-on-ink); }
@media (min-width: 48rem) {
  .contents { columns: 2; column-gap: clamp(2rem, 6vw, 6rem); }
}
.contents li {
  display: grid;
  grid-template-columns: 2.75rem 1fr;
  align-items: baseline;
  gap: var(--s3);
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--rule-on-ink);
  font-size: 1.0625rem;
  break-inside: avoid;
}

/* --- 14. Principles -------------------------------------- */

.principles { display: grid; border-top: 1px solid var(--rule); }
@media (min-width: 48rem) {
  .principles { grid-template-columns: repeat(2, 1fr); column-gap: clamp(2rem, 6vw, 6rem); }
}
.principle { padding: var(--s5) 0; border-bottom: 1px solid var(--rule); }
.principle h3 { margin-bottom: 0.5rem; }
.principle p { color: var(--text-2); font-size: var(--t-small); line-height: 1.65; max-width: 48ch; }

/* --- 15. Inline sector list ------------------------------ */

.sectors {
  display: flex;
  flex-wrap: wrap;
  font-size: clamp(1.15rem, 1rem + 0.7vw, 1.6rem);
  line-height: 1.5;
  letter-spacing: -0.018em;
}
.sectors li { display: inline-flex; align-items: center; }
.sectors li:not(:first-child)::before {
  content: "";
  width: 0.26em; height: 0.26em;
  background: var(--rule-strong);
  margin-inline: 0.72em;
  flex: none;
}

/* --- 16. Interior page header ---------------------------- */

.crumb {
  font-family: var(--mono);
  font-size: var(--t-label);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6em;
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}
.crumb a {
  display: inline-block;
  padding-block: 0.35rem;
  text-decoration: none;
  transition: color var(--fast);
}
.crumb a:hover { color: var(--mark); }
.crumb span[aria-hidden] { color: var(--text-3); }
.crumb [aria-current] { color: var(--text-2); }

.page-head { padding-block: clamp(2rem, 1rem + 4vw, 4rem) clamp(2.5rem, 1.5rem + 4vw, 5rem); }
.page-head__title { margin-bottom: var(--s5); max-width: 20ch; }

/* Service pages run flush left so the title block sits on the same axis
   as the document body beneath it. */
.doc-head { max-width: 58rem; }
.doc-head__cat { margin-bottom: var(--s4); }
.doc-head__cat a {
  display: inline-block;
  padding-block: 0.35rem;
  text-decoration: none;
  transition: color var(--fast);
}
.doc-head__cat a:hover { color: var(--mark); }

/* --- 17. Prose ------------------------------------------- */

.prose { max-width: var(--measure); }
.prose > * + * { margin-top: 1.15em; }
.prose h2 {
  font-size: clamp(1.3rem, 1.15rem + 0.7vw, 1.65rem);
  letter-spacing: -0.02em;
  margin-top: 2.4em;
  padding-top: 1.1em;
  border-top: 1px solid var(--rule);
  position: relative;
}
.prose h2::before {
  content: "";
  position: absolute;
  top: -1px; left: 0;
  width: 2rem; height: 1px;
  background: var(--mark);
}
.prose > h2:first-child { margin-top: 0; }
.prose h3 { margin-top: 1.9em; font-size: var(--t-h3); }
.prose p { color: var(--text-2); line-height: 1.72; text-wrap: pretty; }
.prose strong { color: var(--text); font-weight: 600; }
.prose ul { margin-top: 1.15em; }
.prose li {
  position: relative;
  padding-left: 1.4rem;
  padding-block: 0.3rem;
  color: var(--text-2);
  line-height: 1.6;
}
.prose li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.88em;
  width: 0.45rem; height: 1px;
  background: var(--mark);
}
.prose a {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--rule-strong);
  text-underline-offset: 0.2em;
}
.prose a:hover { color: var(--mark); text-decoration-color: currentColor; }

/* --- 18. Document layout (service pages) ----------------- */

/* Capped so the text column and the margin notes stay a fixed gutter apart
   instead of drifting into a hole on wide screens. */
.doc { display: grid; gap: var(--s8) clamp(2rem, 4vw, 4.5rem); }
@media (min-width: 64rem) {
  .doc {
    max-width: 58rem;
    grid-template-columns: minmax(0, 1fr) 17rem;
    align-items: start;
  }
}

.aside { display: grid; gap: var(--s6); }
@media (min-width: 64rem) {
  .aside { position: sticky; top: calc(var(--bar-h) + 2rem); }
}

.aside__block { border-top: 1px solid var(--ink); padding-top: var(--s4); }
.aside__block h2 {
  font-family: var(--mono);
  font-size: var(--t-label);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: var(--s3);
}
.aside__links { display: grid; }
.aside__links a {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--rule);
  text-decoration: none;
  font-size: var(--t-small);
  color: var(--text-2);
  transition: color var(--fast), padding-left var(--base);
}
.aside__links a:hover { color: var(--mark); padding-left: 0.4rem; }
.aside__note { font-size: var(--t-small); color: var(--text-3); line-height: 1.6; margin-bottom: var(--s4); }

.aside--alert { background: var(--ink); color: var(--text-on-ink); padding: var(--s5); border-top: 0; }
.aside--alert h2 { color: var(--mark-on-ink); }
.aside--alert .aside__note { color: var(--text-2-on-ink); }
.aside--alert strong { color: var(--text-on-ink); }

/* --- 19. Forms ------------------------------------------- */

.form { max-width: 34rem; }
.field { margin-bottom: var(--s5); }
.field label {
  display: block;
  font-family: var(--mono);
  font-size: var(--t-label);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-2);
  margin-bottom: 0.55rem;
}
.field label .opt { color: var(--text-3); letter-spacing: 0.06em; text-transform: none; }

.field input,
.field select,
.field textarea {
  width: 100%;
  background: var(--paper-raised);
  border: 1px solid var(--rule-input);
  border-radius: 2px;
  padding: 0.75rem 0.85rem;
  font-size: var(--t-body);
  line-height: 1.5;
  transition: border-color var(--fast);
}
.field textarea { min-height: 9rem; resize: vertical; }
.field select {
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--text-2) 50%),
    linear-gradient(135deg, var(--text-2) 50%, transparent 50%);
  background-position: calc(100% - 1.15rem) 1.3rem, calc(100% - 0.8rem) 1.3rem;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 2.5rem;
}
.field input::placeholder,
.field textarea::placeholder { color: var(--text-3); opacity: 1; }
.field input:hover,
.field select:hover,
.field textarea:hover { border-color: var(--text-3); }
.field input:focus,
.field select:focus,
.field textarea:focus { border-color: var(--ink); outline-offset: 1px; }

.field__error {
  display: none;
  font-family: var(--mono);
  font-size: var(--t-meta);
  color: var(--mark-deep);
  margin-top: 0.45rem;
}
.field[data-invalid="true"] input,
.field[data-invalid="true"] select,
.field[data-invalid="true"] textarea { border-color: var(--mark-deep); }
.field[data-invalid="true"] .field__error { display: block; }

.form__note {
  font-size: var(--t-small);
  color: var(--text-3);
  line-height: 1.6;
  margin-bottom: var(--s5);
  max-width: 44ch;
}

.form-done { border-top: 1px solid var(--mark); padding-top: var(--s5); max-width: 34rem; }
.form-done h2 { margin-bottom: var(--s3); }
.form-done p { color: var(--text-2); }

/* --- 20. Sector entries ---------------------------------- */

.sector-list { border-top: 1px solid var(--rule); }
.sector { display: grid; gap: 0.4rem var(--s7); padding: var(--s5) 0; border-bottom: 1px solid var(--rule); }
@media (min-width: 60rem) {
  .sector { grid-template-columns: 2.5rem minmax(0, 1fr) minmax(0, 1.55fr); align-items: baseline; }
}
.sector__n {
  font-family: var(--mono);
  font-size: var(--t-label);
  letter-spacing: 0.08em;
  color: var(--text-3);
}
.sector h2 { font-size: var(--t-h3); letter-spacing: -0.015em; }
.sector p { color: var(--text-2); font-size: var(--t-small); line-height: 1.65; }

/* --- 21. Colophon ---------------------------------------- */

.colophon {
  background: var(--ink);
  color: var(--text-on-ink);
  padding-block: clamp(3rem, 2rem + 4vw, 5rem) var(--s6);
}

.colophon__grid { display: grid; gap: var(--s7) clamp(2rem, 5vw, 4rem); padding-bottom: var(--s7); }
@media (min-width: 48rem) { .colophon__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 64rem) { .colophon__grid { grid-template-columns: 1.5fr 1fr 1fr 1.2fr; } }

.colophon h2 {
  font-family: var(--mono);
  font-size: var(--t-label);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-2-on-ink);
  padding-bottom: var(--s3);
  border-bottom: 1px solid var(--rule-on-ink);
  margin-bottom: var(--s3);
}
.colophon__links { display: grid; }
.colophon__links a {
  padding: 0.35rem 0;
  font-size: var(--t-small);
  text-decoration: none;
  color: var(--text-2-on-ink);
  transition: color var(--fast);
}
.colophon__links a:hover { color: var(--mark-on-ink); }

.colophon .wordmark { color: var(--text-on-ink); font-size: 1.25rem; margin-right: 0; }
.colophon .wordmark span { color: var(--text-2-on-ink); }
.colophon .wordmark::after { background: var(--mark-on-ink); }

.colophon__blurb {
  color: var(--text-2-on-ink);
  font-size: var(--t-small);
  line-height: 1.65;
  max-width: 34ch;
  margin-top: var(--s4);
}

.colophon__contact { display: grid; gap: 0.3rem; margin-top: var(--s4); }
.colophon__contact a,
.colophon__contact span {
  font-family: var(--mono);
  font-size: var(--t-meta);
  color: var(--text-2-on-ink);
  text-decoration: none;
  line-height: 1.55;
  transition: color var(--fast);
}
.colophon__contact a:hover { color: var(--mark-on-ink); }

.colophon__base {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s3) var(--s5);
  justify-content: space-between;
  align-items: baseline;
  padding-top: var(--s5);
  border-top: 1px solid var(--rule-on-ink);
  font-family: var(--mono);
  font-size: var(--t-meta);
  color: var(--text-2-on-ink);
}
.colophon__base nav { display: flex; flex-wrap: wrap; gap: var(--s5); }
.colophon__base a { text-decoration: none; transition: color var(--fast); }
.colophon__base a:hover { color: var(--mark-on-ink); }

/* --- 22. Error page -------------------------------------- */

.error { padding-block: clamp(4rem, 2rem + 9vw, 10rem); }
.error__code {
  font-family: var(--mono);
  font-size: clamp(3.5rem, 2rem + 8vw, 7rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--mark);
  margin-bottom: var(--s5);
}

/* --- 23. Entrance (first paint only) --------------------- */

@media (prefers-reduced-motion: no-preference) {
  .enter > * { animation: rise 620ms var(--ease) backwards; }
  .enter > *:nth-child(1) { animation-delay: 40ms; }
  .enter > *:nth-child(2) { animation-delay: 110ms; }
  .enter > *:nth-child(3) { animation-delay: 180ms; }
  @keyframes rise {
    from { opacity: 0; transform: translateY(0.7rem); }
    to   { opacity: 1; transform: none; }
  }
}

/* --- 24. Utilities --------------------------------------- */

.flow-t { margin-top: var(--s6); }
.flow-t-lg { margin-top: var(--s7); }
.measure { max-width: 58ch; }
.measure > * + * { margin-top: var(--s4); }

/* --- 25. Print ------------------------------------------- */
/* Service pages get read on paper and forwarded as PDFs. */

@media print {
  .masthead, .colophon, .aside, .skip, .btn-row, .scrim { display: none; }
  body { background: #fff; color: #000; font-size: 11pt; }
  .wrap { max-width: none; padding-inline: 0; }
  .section, .page-head { padding-block: 0 1rem; }
  .doc { display: block; max-width: none; }
  .prose { max-width: none; }
  .prose h2 { break-after: avoid; }
  .prose li, .prose p { break-inside: avoid; }
}