/* =========================================================================
   Arran Intelligence — site.css
   Tokens documented in /docs/brand.md. Source of truth lives at :root below.
   ========================================================================= */

/* ── Self-hosted display face ─────────────────────────────────────────────
   Source Serif 4 by Adobe (SIL OFL). 4 woff2 files, ~77 kB total.
   Latin + latin-ext, regular + italic, weight 400. Falls through to
   Georgia for any glyph outside these ranges.                             */
@font-face {
  font-family: "Source Serif 4";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/source-serif-4-latin-400.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Source Serif 4";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/source-serif-4-latin-ext-400.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Source Serif 4";
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/source-serif-4-latin-400-italic.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Source Serif 4";
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/source-serif-4-latin-ext-400-italic.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
  /* Palette — confirmed against the IOMT review and CCT brand: navy / gold /
     atlantic / paper. Cream is the warm alt for surface contrast. */
  --ink:        #0B1F3A;  /* deep navy */
  --rule:       #1A3A5C;  /* atlantic blue */
  --accent:     #C99A3A;  /* highland gold */
  --accent-2:   #B8872E;  /* gold hover */
  --accent-soft:#E5CD9F;  /* gold tint */
  --paper:      #F7F3EC;  /* isle white */
  --cream:      #F5EFE4;  /* warm alt surface */
  --surface:    #EFE9DD;  /* card surface */
  --mute:       #5A6577;  /* de-emphasised text */
  --hairline-c: rgba(11, 31, 58, 0.14);
  --hairline-cs: rgba(11, 31, 58, 0.22);

  /* Typography */
  --font-display: "Source Serif 4", "Source Serif Pro", Georgia, "Times New Roman", serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --fs-xxl: clamp(2.6rem, 1.4rem + 4.4vw, 4.2rem);
  --fs-xl:  clamp(1.95rem, 1.25rem + 2.4vw, 2.6rem);
  --fs-lg:  1.563rem;
  --fs-md:  1.25rem;
  --fs-base: 1.0625rem;
  --fs-sm:  0.875rem;
  --fs-xs:  0.75rem;

  --lh-display: 1.06;
  --lh-lead: 1.4;
  --lh-body: 1.6;

  /* Spacing — 8px grid */
  --sp-1: 0.5rem;
  --sp-2: 1rem;
  --sp-3: 1.5rem;
  --sp-4: 2rem;
  --sp-5: 3rem;
  --sp-6: 4.5rem;
  --sp-7: 6.75rem;
  --sp-8: 10rem;

  /* Layout */
  --measure: 64ch;
  --container: 76rem;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);

  /* Effects */
  --hairline: 1px solid var(--hairline-c);
  --hairline-strong: 1px solid var(--hairline-cs);
  --shadow-card: 0 1px 0 0 var(--hairline-c), 0 12px 28px -18px rgba(11,31,58,0.18);
}

/* -- Reset (minimal) ----------------------------------------------------- */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body, h1, h2, h3, h4, p, ol, ul, dl, dt, dd, figure, blockquote { margin: 0; }
ol, ul { padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
hr { border: 0; border-top: var(--hairline); margin-block: var(--sp-3); }

/* -- Document chrome ----------------------------------------------------- */

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0s !important;
    transition-duration: 0s !important;
  }
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-body);
  color: var(--ink);
  background: var(--paper);
  font-feature-settings: "kern", "liga", "calt", "lnum", "ss01";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3,
.hero__subline, .principle, .why__panel p:last-child,
.engagement__name, .service__title, .faq__item summary, .post h1, .post h2 {
  font-feature-settings: "kern", "liga", "calt", "onum", "ss01", "dlig";
}

/* Numerals: oldstyle figures in display, lining tabular in tables/labels */
.eyebrow, .phase__step, .phase__meta, .hero__meta dt, .hero__meta dd,
.engagement__facts dt, .engagement__facts dd, .foot__details dt, .foot__details dd,
.foot__legal, .contact-card__list, .hero__objection {
  font-feature-settings: "kern", "tnum", "lnum";
}

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

a {
  color: inherit;
  text-decoration-line: underline;
  text-decoration-color: color-mix(in srgb, var(--accent) 50%, transparent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
  transition: text-decoration-color 140ms ease, color 140ms ease;
}
a:hover { text-decoration-color: var(--accent); color: var(--ink); }
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
  text-decoration-color: var(--accent);
}

.skip {
  position: absolute;
  top: -40px; left: 1rem;
  background: var(--ink); color: var(--paper);
  padding: 0.5rem 0.875rem;
  z-index: 100;
}
.skip:focus { top: 0.5rem; }

/* -- Layout container ---------------------------------------------------- */

.site-header,
.site-footer,
main > section {
  padding-inline: var(--gutter);
}
.site-header .bar,
.site-footer .foot,
.site-footer .foot__legal,
main > section > * {
  max-width: var(--container);
  margin-inline: auto;
}

/* -- Header / wordmark --------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid transparent;
  transition: border-color 200ms ease, background 200ms ease;
}
.site-header.is-scrolled {
  border-bottom-color: var(--hairline-cs);
  background: color-mix(in srgb, var(--paper) 96%, transparent);
}

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  height: 4.5rem;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-display);
  font-weight: 380;
  letter-spacing: -0.01em;
  font-size: 1.35rem;
  line-height: 1;
  color: var(--ink);
  text-decoration: none !important;
}
.wordmark__primary { font-style: normal; }
.wordmark__rule {
  display: inline-block;
  width: 1.1rem;
  height: 1px;
  background: var(--accent);
  align-self: center;
}
.wordmark__secondary {
  font-weight: 380;
  color: var(--accent);
  font-style: italic;
}
.wordmark--small { font-size: 1.05rem; }

.primary-nav {
  display: flex;
  gap: clamp(0.6rem, 2vw, 1.6rem);
  align-items: center;
  font-size: var(--fs-sm);
  letter-spacing: 0.01em;
}
.primary-nav a {
  text-decoration: none !important;
  color: var(--ink);
  padding-block: 0.5rem;
  position: relative;
  transition: color 140ms ease;
}
.primary-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0.35rem;
  height: 1px;
  background: var(--accent);
  transition: right 280ms cubic-bezier(.2,.7,.2,1);
}
.primary-nav a:hover::after,
.primary-nav a:focus-visible::after { right: 0; }
.primary-nav__cta {
  background: var(--ink);
  color: var(--paper) !important;
  padding: 0.55rem 1rem !important;
  border-radius: 1px;
  border-bottom: none !important;
}
.primary-nav__cta:hover { background: var(--rule); border-bottom: none !important; }

/* Tucked secondary link — for existing clients, not prospects.
   Visually subordinate to the primary nav items, set off with a hairline. */
.primary-nav__portal {
  color: var(--mute) !important;
  font-style: italic;
  position: relative;
  padding-left: 1.2rem !important;
}
.primary-nav__portal::before {
  content: "";
  position: absolute;
  left: 0.4rem; top: 50%; transform: translateY(-50%);
  width: 1px; height: 0.85em;
  background: var(--hairline-cs);
}
.primary-nav__portal:hover { color: var(--ink) !important; }

@media (max-width: 800px) {
  .primary-nav { gap: 0.5rem; font-size: 0.8125rem; }
  .primary-nav a:nth-child(3),
  .primary-nav a:nth-child(4),
  .primary-nav a:nth-child(5) { display: none; }
}

/* -- Section structure --------------------------------------------------- */

main > section {
  padding-block: clamp(4rem, 8vw, var(--sp-8));
  position: relative;
}
main > section + section { border-top: var(--hairline); }

.section__head {
  display: grid;
  gap: var(--sp-2);
  margin-bottom: var(--sp-6);
}
.section--alt {
  background: var(--cream);
  background-image:
    linear-gradient(to right,  rgba(11, 31, 58, 0.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(11, 31, 58, 0.025) 1px, transparent 1px);
  background-size: 32px 32px;
  background-position: -1px -1px;
}
.section--alt + section,
section + .section--alt { border-top: 1px solid var(--hairline-cs); }

/* -- Display type -------------------------------------------------------- */

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--rule);
  margin: 0;
  font-weight: 480;
}
.eyebrow span[aria-hidden="true"] { color: var(--accent); padding: 0 0.2em; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 380;
  letter-spacing: -0.015em;
  line-height: var(--lh-display);
  color: var(--ink);
  text-wrap: balance;
}
h2 { font-size: var(--fs-xl); max-width: 24ch; letter-spacing: -0.018em; }
h3 { font-size: var(--fs-lg); letter-spacing: -0.005em; line-height: 1.2; }

p { max-width: var(--measure); }

.section__lead {
  font-size: var(--fs-md);
  line-height: var(--lh-lead);
  color: var(--ink);
  max-width: 60ch;
}

/* -- Reveal animation (single source) ------------------------------------ */

.reveal {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 700ms cubic-bezier(.2,.6,.2,1), transform 700ms cubic-bezier(.2,.6,.2,1);
  will-change: opacity, transform;
}
.reveal.is-in {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* -- Hero ---------------------------------------------------------------- */

.hero {
  display: grid;
  gap: var(--sp-3);
  padding-block-start: clamp(3.5rem, 8vw, 7rem) !important;
  padding-block-end: clamp(4rem, 8vw, 7rem) !important;
  position: relative;
  isolation: isolate;
  overflow: clip;
}

/* Hero page-load stagger — orchestrated reveal of the brand-first paint.
   Honours prefers-reduced-motion via the rule above. */
.hero__content > * {
  opacity: 0;
  animation: hero-rise 720ms cubic-bezier(.2,.6,.2,1) forwards;
}
.hero__content > .eyebrow         { animation-delay: 80ms; }
.hero__content > .hero__headline  { animation-delay: 200ms; }
.hero__content > .hero__subline   { animation-delay: 320ms; }
.hero__content > .hero__lead      { animation-delay: 440ms; }
.hero__content > .hero__actions   { animation-delay: 560ms; }
.hero__content > .hero__objection { animation-delay: 640ms; }
.hero__content > .hero__meta      { animation-delay: 720ms; }
.hero__content > .hero__strip     { animation-delay: 840ms; }
@keyframes hero-rise {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .hero__content > * { opacity: 1; animation: none !important; transform: none; }
}
.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: var(--hairline-cs);
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}
.hero__bg svg { width: 100%; height: 100%; opacity: 0.9; }

.hero__content { display: grid; gap: var(--sp-3); }

.hero__headline {
  font-size: var(--fs-xxl);
  letter-spacing: -0.022em;
  font-weight: 360;
  max-width: 22ch;
  margin-block: var(--sp-1) var(--sp-1);
  text-wrap: balance;
}

.hero__subline {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 0.9rem + 0.7vw, 1.45rem);
  line-height: 1.35;
  color: var(--rule);
  font-style: italic;
  font-weight: 380;
  max-width: 40ch;
  letter-spacing: -0.006em;
}
.hero__subline em { font-style: italic; }

.hero__lead {
  font-size: var(--fs-md);
  line-height: var(--lh-lead);
  max-width: 58ch;
  color: var(--ink);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-3);
}

.hero__meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--sp-3);
  margin-top: var(--sp-5);
  padding-top: var(--sp-4);
  border-top: var(--hairline);
}
.hero__meta div { display: grid; gap: 0.25rem; }
.hero__meta dt {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--mute);
  font-weight: 500;
}
.hero__meta dd { font-size: var(--fs-sm); margin: 0; line-height: 1.5; }

.hero__strip {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem 1rem;
  margin-top: var(--sp-4);
  padding-top: var(--sp-3);
  border-top: var(--hairline);
  font-size: var(--fs-sm);
  max-width: none;
}
.hero__strip-label {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
  font-weight: 520;
}
.hero__strip-list {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem;
  color: var(--ink);
  font-family: var(--font-display);
  letter-spacing: -0.005em;
  font-style: italic;
  font-weight: 400;
  font-size: 1rem;
}
.hero__strip-list i {
  font-style: normal;
  color: color-mix(in srgb, var(--accent) 70%, transparent);
  font-size: 1.1rem;
  line-height: 1;
  transform: translateY(-1px);
}

@media (max-width: 720px) {
  .hero__meta { grid-template-columns: 1fr; gap: var(--sp-2); }
}

/* -- Buttons ------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.85rem 1.5rem;
  font-size: var(--fs-sm);
  letter-spacing: 0.02em;
  border-radius: 1px;
  border: 1px solid transparent;
  text-decoration: none !important;
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease, transform 140ms ease;
  cursor: pointer;
  font-family: var(--font-body);
  font-weight: 480;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--ink); color: var(--paper); }
.btn--primary:hover { background: var(--rule); }
.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: color-mix(in srgb, var(--ink) 30%, transparent);
}
.btn--ghost:hover {
  border-color: var(--ink);
  background: color-mix(in srgb, var(--ink) 5%, transparent);
}
.btn--lg { padding: 1.05rem 1.7rem; min-height: 56px; font-size: var(--fs-base); }

/* -- Hero objection handler --------------------------------------------- */

.hero__objection {
  margin-top: 0.6rem;
  font-size: var(--fs-sm);
  color: var(--mute);
  letter-spacing: 0.005em;
  max-width: 60ch;
  line-height: 1.55;
}
.hero__objection span[aria-hidden="true"] {
  color: var(--accent);
  font-weight: 700;
  margin: 0 0.35rem 0 0;
  display: inline-block;
}
.hero__objection span[aria-hidden="true"]:first-child { margin-left: 0; }

/* -- Why this exists (PAS) ----------------------------------------------- */

.why { display: grid; gap: var(--sp-4); }
.why .section__head { margin-bottom: 0; }
.why__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--sp-3);
  border-top: var(--hairline-strong);
  padding-top: var(--sp-4);
}
.why__panel {
  padding: var(--sp-4);
  background: var(--cream);
  border: var(--hairline);
  border-top: 2px solid var(--hairline-cs);
  display: grid;
  gap: 0.75rem;
}
.why__panel--accent {
  background: var(--paper);
  border-top: 2px solid var(--accent);
}

/* Drop cap on each panel's body paragraph — refined editorial signature */
.why__panel p:last-child::first-letter {
  font-family: var(--font-display);
  font-size: 3.4em;
  font-weight: 380;
  float: left;
  line-height: 0.85;
  margin: 0.18em 0.16em 0 0;
  color: var(--accent);
  font-feature-settings: "ss01";
}
.why__label {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--rule);
  font-weight: 520;
  margin: 0;
}
.why__panel--accent .why__label { color: var(--accent); }
.why__panel p:last-child {
  font-family: var(--font-display);
  font-size: 1.18rem;
  line-height: 1.5;
  color: var(--ink);
  letter-spacing: -0.005em;
  font-weight: 400;
  max-width: 50ch;
  margin: 0;
}
@media (max-width: 800px) { .why__grid { grid-template-columns: 1fr; gap: var(--sp-2); } }

/* -- Inline CTA strip ---------------------------------------------------- */

.cta-strip {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  margin-top: var(--sp-6);
  padding: var(--sp-4) var(--sp-4);
  background: var(--ink);
  color: var(--paper);
  border-left: 3px solid var(--accent);
  position: relative;
}
.cta-strip__copy { display: grid; gap: 0.4rem; flex: 1 1 auto; }
.cta-strip__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: -0.005em;
  color: var(--paper);
  margin: 0;
  max-width: 38ch;
  line-height: 1.25;
}
.cta-strip__body {
  font-size: var(--fs-sm);
  color: rgba(247, 243, 236, 0.78);
  margin: 0;
  max-width: 60ch;
  line-height: 1.55;
}
.cta-strip .btn--primary {
  background: var(--accent);
  color: var(--ink);
  flex: 0 0 auto;
  font-weight: 520;
}
.cta-strip .btn--primary:hover { background: var(--paper); }
.cta-strip .btn--ghost {
  background: transparent;
  color: var(--paper);
  border-color: rgba(247, 243, 236, 0.4);
  flex: 0 0 auto;
}
.cta-strip .btn--ghost:hover {
  border-color: var(--accent);
  background: rgba(247, 243, 236, 0.05);
  color: var(--paper);
}
.cta-strip--quiet {
  background: var(--paper);
  color: var(--ink);
  border: var(--hairline-strong);
  border-left: 3px solid var(--accent);
}
.cta-strip--quiet .cta-strip__title { color: var(--ink); }
.cta-strip--quiet .cta-strip__body { color: var(--mute); }
.cta-strip--quiet .btn--ghost { color: var(--ink); border-color: var(--hairline-cs); }
.cta-strip--quiet .btn--ghost:hover {
  background: color-mix(in srgb, var(--ink) 5%, transparent);
  border-color: var(--ink);
  color: var(--ink);
}
@media (max-width: 720px) {
  .cta-strip { flex-direction: column; align-items: flex-start; padding: var(--sp-3); }
}

/* -- Sectors ------------------------------------------------------------- */

.sectors {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border-top: var(--hairline-strong);
}
.sectors li {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  align-items: baseline;
  gap: 0.5rem 0.75rem;
  padding: var(--sp-3) var(--sp-3) var(--sp-3) 0;
  border-bottom: var(--hairline);
  position: relative;
}
.sectors li:not(:nth-child(3n))::after {
  content: "";
  position: absolute;
  top: var(--sp-2);
  bottom: var(--sp-2);
  right: 0;
  width: 1px;
  background: var(--hairline-c);
}
.sectors__num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--accent);
  font-weight: 380;
  line-height: 1.1;
}
.sectors__name {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 400;
  letter-spacing: -0.005em;
  color: var(--ink);
  grid-column: 2;
}
.sectors__detail {
  grid-column: 2;
  font-size: var(--fs-sm);
  color: var(--mute);
  line-height: 1.5;
  margin-top: 0.15rem;
}

@media (max-width: 900px) { .sectors { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) {
  .sectors { grid-template-columns: 1fr; }
  .sectors li::after { display: none !important; }
}

/* -- Services ------------------------------------------------------------ */

.services {
  display: grid;
  gap: var(--sp-4);
}
.service {
  display: grid;
  gap: var(--sp-2);
  padding-top: var(--sp-5);
  padding-bottom: var(--sp-1);
  border-top: var(--hairline-strong);
  position: relative;
}
.service:first-child { padding-top: var(--sp-3); border-top: 0; }

.service__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
}
.service__num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(2.4rem, 1.8rem + 1.6vw, 3.4rem);
  color: var(--accent);
  font-weight: 380;
  letter-spacing: -0.02em;
  line-height: 0.9;
  position: relative;
  font-feature-settings: "onum";
}
/* Drafted dimension line under each service number */
.service__num::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.6rem;
  width: 2.6rem;
  height: 1px;
  background: var(--accent);
}
.service__num::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.85rem;
  width: 1px;
  height: 0.5rem;
  background: var(--accent);
}
.service__icon {
  width: 3.6rem; height: 3.6rem;
  color: var(--ink);
  flex: 0 0 auto;
}

.service__title {
  font-size: clamp(1.6rem, 1.25rem + 0.8vw, 2rem);
  letter-spacing: -0.01em;
  margin-top: var(--sp-1);
}
.service__tagline {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--fs-md);
  color: var(--rule);
  margin-bottom: var(--sp-2);
  max-width: 50ch;
}
.service__body { max-width: 64ch; color: var(--ink); }

.service__points {
  display: grid;
  gap: 0.45rem;
  margin-top: var(--sp-2);
  max-width: 64ch;
}
.service__points li {
  position: relative;
  padding-left: 1.3rem;
  font-size: var(--fs-sm);
  line-height: 1.55;
  color: var(--ink);
}
.service__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 0.55rem;
  height: 1px;
  background: var(--accent);
}

.service__example {
  display: grid;
  gap: 0.35rem;
  margin-top: var(--sp-3);
  padding: 1rem 1.25rem;
  background: color-mix(in srgb, var(--rule) 5%, var(--paper));
  border-left: 2px solid var(--accent);
  font-size: var(--fs-sm);
  line-height: 1.55;
  max-width: 64ch;
}
.service__example-label {
  display: inline-block;
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--rule);
  font-weight: 520;
  margin-right: 0.35rem;
}

@media (max-width: 640px) {
  .service__head { gap: var(--sp-2); }
  .service__icon { width: 2.6rem; height: 2.6rem; }
  .service__num { font-size: 2.4rem; }
}

/* -- Phases / approach --------------------------------------------------- */

.phases {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--sp-3);
  border-top: var(--hairline-strong);
  padding-top: var(--sp-4);
  position: relative;
}
.phases::before {
  content: "";
  position: absolute;
  top: calc(var(--sp-4) + 2rem);
  left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right,
    var(--accent) 0%, var(--accent) 22%,
    var(--hairline-c) 22%, var(--hairline-c) 100%);
  opacity: 0.55;
}
.phase {
  display: grid;
  gap: 0.55rem;
  padding-right: var(--sp-2);
  position: relative;
  padding-top: 0;
}
.phase + .phase {
  border-left: var(--hairline);
  padding-left: var(--sp-3);
}
.phase__step {
  font-size: var(--fs-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 520;
}
.phase__title {
  font-size: var(--fs-md);
  letter-spacing: -0.005em;
  margin-bottom: 0.35rem;
}
.phase p {
  font-size: var(--fs-sm);
  line-height: 1.55;
  color: var(--ink);
  max-width: 32ch;
}
.phase__meta {
  font-size: var(--fs-xs);
  letter-spacing: 0.04em;
  color: var(--mute);
  margin-top: 0.2rem;
}

@media (max-width: 980px) {
  .phases { grid-template-columns: repeat(2, 1fr); row-gap: var(--sp-4); }
  .phases::before { display: none; }
  .phase + .phase { border-left: 0; padding-left: 0; }
  .phase:nth-child(2),
  .phase:nth-child(4) { border-left: var(--hairline); padding-left: var(--sp-3); }
}
@media (max-width: 560px) {
  .phases { grid-template-columns: 1fr; }
  .phase + .phase { border-left: 0 !important; padding-left: 0 !important; padding-top: var(--sp-3); border-top: var(--hairline); }
}

.principle {
  margin-top: var(--sp-6);
  padding: var(--sp-4);
  border: var(--hairline-strong);
  border-left: 3px solid var(--accent);
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 1rem + 0.6vw, 1.4rem);
  line-height: 1.4;
  font-weight: 380;
  max-width: 64ch;
  position: relative;
  background: var(--paper);
}
.principle blockquote {
  font-style: italic;
  margin: 0;
  letter-spacing: -0.005em;
}
.principle__mark {
  font-family: var(--font-display);
  color: var(--accent);
  font-size: 2.6rem;
  line-height: 1;
  display: inline-block;
  margin-right: 0.25rem;
  vertical-align: -0.32em;
  font-style: normal;
}
.principle__attr {
  display: block;
  margin-top: 1rem;
  font-style: normal;
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--mute);
}

/* -- Engagements --------------------------------------------------------- */

.engagements {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--sp-3);
}
.engagement {
  display: grid;
  gap: var(--sp-2);
  padding: var(--sp-4);
  background: var(--paper);
  border: var(--hairline);
  border-top: 0;
  transition: transform 240ms ease, box-shadow 240ms ease, border-color 240ms ease;
  position: relative;
}
/* Architectural top rule that grows on hover — gold dimension line */
.engagement::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 30%;
  height: 2px;
  background: var(--accent);
  transition: width 360ms cubic-bezier(.2,.7,.2,1);
}
.engagement:hover::before { width: 100%; }
.engagement:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
  border-color: var(--hairline-cs);
}
/* Corner registration marks — only on engagement cards (subtle) */
.engagement::after {
  content: "";
  position: absolute;
  bottom: 0.55rem;
  right: 0.55rem;
  width: 0.45rem;
  height: 0.45rem;
  background:
    linear-gradient(to right, var(--accent) 50%, transparent 50%) no-repeat,
    linear-gradient(to bottom, var(--accent) 50%, transparent 50%) no-repeat;
  background-size: 100% 1px, 1px 100%;
  background-position: bottom right, bottom right;
  opacity: 0.4;
}
.engagement header { display: grid; gap: 0.4rem; }
.engagement__sector {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  font-weight: 520;
}
.engagement__name {
  font-size: 1.4rem;
  letter-spacing: -0.006em;
  margin: 0;
}
.engagement__facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
  padding-block: var(--sp-2);
  margin-block: var(--sp-1);
  border-top: var(--hairline);
  border-bottom: var(--hairline);
}
.engagement__facts > div {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 0.5rem;
  align-items: baseline;
}
.engagement__facts dt {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--mute);
}
.engagement__facts dd {
  margin: 0;
  font-size: var(--fs-sm);
  color: var(--ink);
}
.engagement__note {
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: var(--ink);
  max-width: 50ch;
}

@media (max-width: 980px) { .engagements { grid-template-columns: 1fr; } }

/* -- About / people ------------------------------------------------------ */

.people {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--sp-5);
  border-top: var(--hairline-strong);
  padding-top: var(--sp-4);
}
.person { display: grid; gap: var(--sp-2); }
.person__name { font-size: var(--fs-lg); margin-bottom: 0; }
.person__role {
  font-size: var(--fs-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--rule);
  margin-bottom: var(--sp-2);
  font-weight: 480;
}
.person p { color: var(--ink); }

@media (max-width: 800px) {
  .people { grid-template-columns: 1fr; gap: var(--sp-4); }
}

.aside {
  margin-top: var(--sp-5);
  padding-top: var(--sp-4);
  border-top: var(--hairline);
  font-size: var(--fs-sm);
  color: var(--mute);
  max-width: 64ch;
  line-height: 1.6;
}
.aside strong { color: var(--ink); font-weight: 600; }

/* -- FAQ ----------------------------------------------------------------- */

.faq {
  display: grid;
  border-top: var(--hairline-strong);
}
.faq__item {
  border-bottom: var(--hairline);
  padding-block: 0.25rem;
}
.faq__item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  padding: var(--sp-3) 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: -0.005em;
  font-weight: 400;
  color: var(--ink);
  transition: color 140ms ease;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary:hover { color: var(--rule); }
.faq__item summary i {
  position: relative;
  display: inline-block;
  width: 1rem;
  height: 1rem;
  flex: 0 0 auto;
}
.faq__item summary i::before,
.faq__item summary i::after {
  content: "";
  position: absolute;
  background: var(--accent);
  border-radius: 1px;
  transition: transform 220ms ease, opacity 220ms ease;
}
.faq__item summary i::before {
  top: 50%; left: 0; right: 0;
  height: 1.5px;
  transform: translateY(-0.75px);
}
.faq__item summary i::after {
  left: 50%; top: 0; bottom: 0;
  width: 1.5px;
  transform: translateX(-0.75px);
}
.faq__item[open] summary i::after { transform: translateX(-0.75px) rotate(90deg); opacity: 0; }
.faq__item[open] summary { color: var(--rule); }
.faq__body {
  padding-bottom: var(--sp-3);
  padding-right: var(--sp-4);
  max-width: 70ch;
}
.faq__body p {
  font-size: var(--fs-base);
  color: var(--ink);
  line-height: 1.65;
}

/* -- Contact ------------------------------------------------------------- */

.section--contact {
  background: var(--ink);
  color: var(--paper);
  position: relative;
  overflow: hidden;
}
.section--contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 90% 10%, rgba(201,154,58,0.10) 0%, transparent 65%),
    radial-gradient(ellipse 50% 40% at 5% 95%, rgba(74,144,164,0.10) 0%, transparent 65%);
  pointer-events: none;
}
.section--contact > * { position: relative; }
.section--contact .eyebrow { color: var(--accent); }
.section--contact h2,
.section--contact .section__lead { color: var(--paper); }
.section--contact h2 { max-width: 18ch; }

.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--sp-5);
  align-items: start;
}
.contact-grid .section__head { margin-bottom: 0; }

.contact-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(247,243,236,0.12);
  padding: var(--sp-4);
  display: grid;
  gap: var(--sp-2);
}
.contact-card__label {
  font-size: var(--fs-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 520;
}
.contact-card .btn--primary {
  background: var(--accent);
  color: var(--ink);
  justify-self: start;
  font-weight: 520;
}
.contact-card .btn--primary:hover { background: var(--paper); }
.contact-card__note {
  font-size: var(--fs-xs);
  letter-spacing: 0.04em;
  color: rgba(247,243,236,0.55);
  margin: 0;
}
.contact-card hr {
  border-top-color: rgba(247,243,236,0.12);
  margin-block: var(--sp-1);
}
.contact-card__list { display: grid; gap: 0.55rem; font-size: var(--fs-sm); }
.contact-card__list li { color: rgba(247,243,236,0.78); }
.contact-card__list strong { color: var(--paper); font-weight: 520; }

@media (max-width: 800px) {
  .contact-grid { grid-template-columns: 1fr; gap: var(--sp-4); }
}

/* -- Footer -------------------------------------------------------------- */

.site-footer {
  background: var(--paper);
  border-top: var(--hairline-strong);
  padding-block: var(--sp-5) var(--sp-3);
  font-size: var(--fs-sm);
}
.foot {
  display: grid;
  grid-template-columns: 1.4fr 1.6fr 1fr;
  gap: var(--sp-5);
  align-items: start;
  padding-bottom: var(--sp-4);
  border-bottom: var(--hairline);
}
.foot__brand { display: grid; gap: var(--sp-2); }
.foot__line { color: var(--mute); max-width: 32ch; line-height: 1.55; }
.foot__details {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--sp-2) var(--sp-3);
}
.foot__details > div { display: grid; gap: 0.2rem; }
.foot__details dt {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--mute);
  font-weight: 520;
}
.foot__details dd { margin: 0; color: var(--ink); }

.foot__nav { display: grid; gap: 0.4rem; font-size: var(--fs-sm); }
.foot__nav-label {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--mute);
  font-weight: 520;
  margin-bottom: 0.3rem;
}
.foot__nav a { text-decoration: none !important; color: var(--ink); }
.foot__nav a:hover { color: var(--accent); }

.foot__legal {
  margin-top: var(--sp-2);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-1);
  font-size: var(--fs-xs);
  letter-spacing: 0.04em;
  color: var(--mute);
}
.foot__legal-meta { color: var(--mute); }

@media (max-width: 800px) {
  .foot { grid-template-columns: 1fr; gap: var(--sp-4); }
  .foot__details { grid-template-columns: 1fr 1fr; }
}

/* -- Insights ------------------------------------------------------------ */

.insights-page main { padding-block: var(--sp-6); }
.insights-list {
  display: grid;
  gap: var(--sp-3);
  border-top: var(--hairline-strong);
  padding-top: var(--sp-3);
  margin-top: var(--sp-4);
}
.insights-list article {
  padding-block: var(--sp-2);
  border-bottom: var(--hairline);
}
.insights-list h3 { font-size: var(--fs-lg); }
.insights-list p { color: var(--mute); font-size: var(--fs-sm); margin-top: 0.25rem; }

.post {
  max-width: 38rem;
  padding-block: var(--sp-5);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.post p, .post li { font-size: var(--fs-md); line-height: 1.65; }
.post h1 { font-size: var(--fs-xl); margin-bottom: var(--sp-2); max-width: 22ch; }
.post h2 { font-size: 1.55rem; margin-top: var(--sp-4); margin-bottom: var(--sp-1); }
.post .eyebrow { margin-bottom: var(--sp-3); }
.post p + p { margin-top: var(--sp-2); }
.post a.back {
  font-size: var(--fs-sm);
  display: inline-block;
  margin-top: var(--sp-4);
  border-top: var(--hairline);
  padding-top: var(--sp-3);
}
.post ul { margin: var(--sp-2) 0 var(--sp-2) 1.2rem; list-style: none; }
.post ul li { position: relative; padding-left: 1rem; }
.post ul li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.7em;
  width: 0.55rem; height: 1px;
  background: var(--accent);
}

/* =========================================================================
   Vertical section rail — desktop architectural chapter index (right margin)
   ========================================================================= */

.section-rail {
  position: fixed;
  right: clamp(1rem, 2vw, 2rem);
  top: 50%;
  transform: translateY(-50%);
  z-index: 40;
  pointer-events: auto;
  display: none;
}
@media (min-width: 1180px) {
  .section-rail { display: block; }
}
.section-rail[hidden] { display: none !important; }

.section-rail ol { display: grid; gap: 0.55rem; }
.section-rail a {
  display: grid;
  grid-template-columns: 1.6rem 0.8rem auto;
  align-items: center;
  gap: 0.5rem;
  padding-block: 0.2rem;
  font-family: var(--font-body);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mute);
  text-decoration: none !important;
  font-weight: 520;
  transition: color 200ms ease;
  font-feature-settings: "tnum", "lnum";
}
.section-rail a::before {
  content: attr(data-rail-num);
  color: color-mix(in srgb, var(--mute) 70%, transparent);
  font-style: italic;
  font-family: var(--font-display);
  font-weight: 400;
  text-transform: none;
  letter-spacing: -0.02em;
  font-size: 0.85rem;
  font-feature-settings: "onum";
}
.section-rail a span {
  width: 14px; height: 1px;
  background: color-mix(in srgb, var(--ink) 28%, transparent);
  display: inline-block;
  text-indent: -9999px;
  overflow: hidden;
  transition: width 240ms ease, background 240ms ease;
  grid-column: 2;
}
.section-rail a > span + * { display: none; }
.section-rail li:nth-child(n) a span { /* keeps hidden text on its own line */ }
/* The third grid column receives the readable label, but we hide it visually
   for screen readers via the actual <span> text — keep accessible name. */
.section-rail a {
  grid-template-columns: 1.6rem 22px;
}
.section-rail a:hover,
.section-rail a:focus-visible,
.section-rail a.is-active {
  color: var(--ink);
}
.section-rail a:hover::before,
.section-rail a.is-active::before { color: var(--accent); }
.section-rail a:hover span,
.section-rail a.is-active span {
  width: 26px;
  background: var(--accent);
}

/* Sticky header should not clash with the rail when both visible */
@media (min-width: 1180px) {
  .site-header { padding-right: 5rem; }
}

/* =========================================================================
   Section corner registration marks — printed-document signature
   ========================================================================= */

main > section {
  /* Crosshair marks at top-left + top-right of each major section. Tiny.
     Drawn with two pseudo-elements via background-image for crispness. */
}
main > section::before,
main > section::after {
  content: "";
  position: absolute;
  top: 0;
  width: 14px;
  height: 14px;
  pointer-events: none;
  background:
    linear-gradient(to right,  var(--accent) 50%, transparent 50%) no-repeat,
    linear-gradient(to bottom, var(--accent) 50%, transparent 50%) no-repeat;
  background-size: 100% 1px, 1px 100%;
  opacity: 0.55;
}
main > section::before {
  left: var(--gutter);
  background-position: top left, top left;
}
main > section::after {
  right: var(--gutter);
  background-position: top right, top right;
  background:
    linear-gradient(to left,   var(--accent) 50%, transparent 50%) no-repeat,
    linear-gradient(to bottom, var(--accent) 50%, transparent 50%) no-repeat;
  background-size: 100% 1px, 1px 100%;
  background-position: top right, top right;
}
.hero::before,
.hero::after { display: none; }
@media (max-width: 720px) {
  main > section::before,
  main > section::after { width: 8px; height: 8px; }
}