/* =====================================================================
   Michael Hawkins · Portfolio · v500 "The Specification"
   Engineering-document aesthetic. Drafting paper, prussian ink,
   redline annotations, mono case IDs, generative SVG architecture.
   ===================================================================== */

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

:root {
  /* Surfaces */
  --paper: #F7F6F1;
  --paper-2: #FFFFFF;
  --paper-3: #FBFAF6;
  --paper-deep: #ECEFEB;

  /* Ink (primary type / UI) */
  --ink: #111613;
  --ink-2: #34413B;
  --ink-3: #4E5A54;
  --ink-soft: #56635D;
  --ink-fade: #5E6A64;

  /* Annotation / accent */
  --redline: #0B6B58;
  --redline-soft: #0B6B58;
  --redline-wash: rgba(11,107,88,.075);

  /* Status colors (used inside diagrams) */
  --positive: #0B6B58;
  --positive-bg: #E5F1ED;
  --caution: #735018;          /* in review / yellow triage */
  --caution-bg: #F6EAD1;
  --negative: #8F3124;         /* problem / red triage */
  --negative-bg: #F4DED9;
  --neutral: #56635D;
  --neutral-bg: #ECEFEB;

  /* Rule / hairline */
  --rule: rgba(17,22,19,.13);
  --rule-strong: rgba(17,22,19,.24);

  /* Surface (borders / shadows) */
  --surface-border: #D8DDD8;
  --surface-border-strong: #AEB8B2;
  --surface-shadow: 0 16px 40px rgba(17,22,19,.055);
  --surface-shadow-soft: 0 8px 24px rgba(17,22,19,.04);

  /* Type */
  --font-display: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  /* Type scale (clamp-based, fluid) */
  --fs-0: 0.75rem;             /* 12px — mono labels */
  --fs-1: 0.8125rem;           /* 13px — tags, captions */
  --fs-2: 0.9375rem;           /* 15px — small body */
  --fs-3: 1rem;                /* 16px — body */
  --fs-4: 1.125rem;            /* 18px — lead body */
  --fs-5: 1.375rem;            /* 22px — h4 */
  --fs-6: 1.875rem;            /* H3 · 30px */
  --fs-7: 2.875rem;            /* H2 · 46px */
  --fs-8: 4rem;                /* H1 · 64px */
  --fs-9: clamp(4rem, 3rem + 3vw, 5.5rem);

  /* Spacing scale */
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 0.75rem;
  --s-4: 1rem;
  --s-5: 1.5rem;
  --s-6: 2rem;
  --s-7: 3rem;
  --s-8: 4rem;
  --s-9: 6rem;
  --s-10: 8rem;

  /* Layout */
  --content-max: 1240px;
  --content-narrow: 920px;
  --content-prose: 720px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 0.84, 0.44, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --t-fast: 160ms;
  --t-med: 280ms;
  --t-slow: 480ms;

  /* Form */
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

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

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  font-size: var(--fs-3);
  line-height: 1.55;
  color: var(--ink);
  background-color: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  background-image:
    radial-gradient(circle at 14% 8%, rgba(11,107,88,0.025) 0%, transparent 35%),
    radial-gradient(circle at 86% 92%, rgba(22,32,51,0.04) 0%, transparent 45%);
  background-attachment: fixed;
}

/* very subtle graph-paper undertone applied to body, optional */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(22,32,51,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22,32,51,0.025) 1px, transparent 1px);
  background-size: 80px 80px;
  z-index: 0;
  opacity: 0.5;
}

main, nav, footer, section, header, aside { position: relative; z-index: 1; }

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

a { color: var(--ink); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; transition: color var(--t-fast) var(--ease-out); }
a:hover { color: var(--redline); }
a:focus-visible { outline: 2px solid var(--redline); outline-offset: 3px; border-radius: 2px; }

button { font: inherit; cursor: pointer; }
button:focus-visible { outline: 2px solid var(--redline); outline-offset: 3px; }

p { margin: 0 0 var(--s-4); }

/* ---------- Typography ---------- */

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  color: var(--ink);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.022em;
  margin: 0 0 var(--s-4);
  font-variation-settings: normal;
}

h1 { font-size: var(--fs-8); line-height: 1.03125; font-weight: 400; letter-spacing: -0.035em; }
h2 { font-size: var(--fs-7); line-height: 1.087; font-weight: 400; letter-spacing: -0.03em; }
h3 { font-size: var(--fs-6); line-height: 1.167; font-weight: 450; letter-spacing: -0.02em; }
h4 { font-size: var(--fs-5); line-height: 1.273; font-weight: 500; letter-spacing: -0.015em; }
h5 { font-size: 1rem; line-height: 1.375; font-weight: 600; letter-spacing: -.005em; }

.h-mega { font-size: var(--fs-9); font-variation-settings: normal; font-weight: 400; letter-spacing: -0.04em; line-height: 0.98; }

.lede {
  font-size: var(--fs-4);
  line-height: 1.5;
  color: var(--ink-2);
  max-width: 60ch;
}

.text-prose p, .case-prose p { max-width: 70ch; }

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

/* Mono — used for case IDs, diagram labels, captions, data */
.mono, code, kbd, samp { font-family: var(--font-mono); font-feature-settings: "calt" 0; }

.mono-label,
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--ink-soft);
}

.case-id {
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.08em;
  font-weight: 500;
  color: var(--redline);
  text-transform: uppercase;
}

/* ---------- Layout primitives ---------- */

.wrap {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--s-5);
}
.wrap-narrow { max-width: var(--content-narrow); margin: 0 auto; padding: 0 var(--s-5); }
.wrap-prose { max-width: var(--content-prose); margin: 0 auto; padding: 0 var(--s-5); }

@media (min-width: 720px) {
  .wrap, .wrap-narrow, .wrap-prose { padding: 0 var(--s-7); }
}

.section {
  padding: clamp(3rem, 7vw, 6rem) 0;
  position: relative;
}
.section--tight { padding: clamp(2rem, 5vw, 4rem) 0; }
.section--lg { padding: clamp(4rem, 9vw, 8rem) 0; }

.divider-rule {
  height: 1px;
  background: var(--rule);
  width: 100%;
  margin: 0;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--ink);
  color: var(--paper);
  padding: var(--s-3) var(--s-5);
  z-index: 100;
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: var(--fs-1);
}
.skip-link:focus { top: 0; }

/* ---------- Site navigation ---------- */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(237,240,238,0.94);
  backdrop-filter: blur(10px) saturate(140%);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
  border-bottom: 1px solid var(--rule);
}
.site-nav__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--s-3) var(--s-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-5);
}
@media (min-width: 720px) {
  .site-nav__inner { padding: var(--s-4) var(--s-7); }
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  text-decoration: none;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.06em;
  font-weight: 500;
}
.brand__mark {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--ink);
  color: var(--paper);
  font-weight: 600;
  font-size: 0.6875rem;
  letter-spacing: 0.04em;
  border-radius: var(--radius-sm);
}
.brand__name { display: none; }
@media (min-width: 540px) { .brand__name { display: inline; } }

.nav-links {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  align-items: center;
  gap: var(--s-2);
}
.nav-links a {
  display: inline-block;
  padding: var(--s-2) var(--s-3);
  text-decoration: none;
  color: var(--ink-2);
  font-size: var(--fs-2);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: color var(--t-fast), background var(--t-fast);
}
.nav-links a:hover { color: var(--redline); background: var(--redline-wash); }
.nav-links a[aria-current="page"] { color: var(--ink); border-bottom: 1.5px solid var(--redline); border-radius: 0; }

.nav-links a.nav-cta {
  background: var(--ink);
  color: var(--paper);
  padding: var(--s-2) var(--s-4);
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.06em;
}
.nav-links a.nav-cta:hover { background: var(--redline); color: var(--paper); }

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--rule-strong);
  width: 44px; height: 44px;
  padding: 0;
  border-radius: var(--radius-sm);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.nav-toggle span {
  display: block;
  width: 18px; height: 1.5px;
  background: var(--ink);
}

@media (max-width: 720px) {
  .nav-toggle { display: inline-flex; }
  .nav-links {
    position: absolute;
    top: 100%; right: 0; left: 0;
    background: var(--paper);
    flex-direction: column;
    align-items: stretch;
    padding: var(--s-4);
    gap: 0;
    border-bottom: 1px solid var(--rule);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--t-med) var(--ease-out), transform var(--t-med) var(--ease-out);
  }
  .nav-links.is-open { opacity: 1; transform: translateY(0); pointer-events: auto; }
  .nav-links li { width: 100%; border-bottom: 1px solid var(--rule); }
  .nav-links li:last-child { border-bottom: none; padding-top: var(--s-3); }
  .nav-links a { padding: var(--s-3) var(--s-2); display: block; font-size: var(--fs-3); }
  .nav-links a.nav-cta { text-align: center; margin-top: var(--s-3); }
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-3) var(--s-5);
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid var(--ink);
  border-radius: var(--radius-sm);
  background: var(--ink);
  color: var(--paper);
  font-weight: 500;
  transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast), transform var(--t-fast);
  cursor: pointer;
  line-height: 1;
  min-height: 44px;
}
.btn:hover { background: var(--redline); border-color: var(--redline); color: var(--paper); }
.btn:active { transform: translateY(1px); }

.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--paper); }

.btn--small { padding: var(--s-2) var(--s-4); font-size: var(--fs-0); }

.btn__arrow { font-family: var(--font-mono); font-weight: 400; }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  text-decoration: none;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 500;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 2px;
  transition: color var(--t-fast), border-color var(--t-fast);
}
.text-link:hover { color: var(--redline); border-color: var(--redline); }
.text-link__arrow { font-weight: 400; }

/* ---------- Status pill ---------- */

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: var(--s-2) var(--s-3);
  background: var(--positive-bg);
  color: var(--positive);
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.06em;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--positive) 25%, transparent);
}
.status-pill::before {
  content: "";
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--positive);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--positive) 50%, transparent);
  animation: pulse 2.4s var(--ease-out) infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--positive) 50%, transparent); }
  70% { box-shadow: 0 0 0 8px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

/* ---------- Tags ---------- */

.tag-list { display: flex; flex-wrap: wrap; gap: var(--s-2); margin: var(--s-4) 0; }
.tag {
  display: inline-block;
  padding: var(--s-2) var(--s-3);
  background: transparent;
  border: 1px solid var(--rule-strong);
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.06em;
  border-radius: var(--radius-sm);
}

/* ---------- HOMEPAGE: Hero ---------- */

.hero {
  padding: clamp(3rem, 8vw, 6rem) 0 clamp(2rem, 5vw, 4rem);
  position: relative;
}
.hero__rule {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--s-3) 0;
  border-bottom: 1px dashed var(--rule-strong);
  margin-bottom: var(--s-7);
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  flex-wrap: wrap;
  gap: var(--s-3);
}
.hero__rule-left, .hero__rule-right { display: inline-flex; gap: var(--s-4); align-items: center; flex-wrap: wrap; }
.hero__rule strong { color: var(--ink); font-weight: 500; letter-spacing: 0.1em; }

.hero__lead {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-6);
  align-items: end;
}
@media (min-width: 960px) {
  .hero__lead {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(1.5rem, 3vw, 3rem);
    align-items: start;
  }
}
.hero__id {
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.1em;
  color: var(--redline);
  margin-bottom: var(--s-4);
}
.hero h1 {
  font-size: clamp(2.5rem, 2rem + 4vw, 5rem);
  font-variation-settings: "wdth" 82, "wght" 720;
  letter-spacing: -0.035em;
  line-height: 0.97;
  margin: 0 0 var(--s-5);
}
.hero h1 .accent { color: var(--redline); }
.hero h1 .underline-mark { position: relative; display: inline-block; }
.hero h1 .underline-mark::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0.05em;
  height: 0.18em;
  background: var(--redline);
  opacity: 0.22;
  z-index: -1;
}

.hero__signal {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  padding: var(--s-5);
  background: var(--paper-2);
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius-md);
}
.hero__signal-label {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
}
.hero__signal-line { display: flex; align-items: baseline; justify-content: space-between; gap: var(--s-3); font-size: var(--fs-2); padding-bottom: var(--s-2); border-bottom: 1px dotted var(--rule); }
.hero__signal-line:last-child { border-bottom: none; padding-bottom: 0; }
.hero__signal-line span { font-family: var(--font-mono); font-size: var(--fs-1); letter-spacing: 0.06em; color: var(--ink-soft); text-transform: uppercase; }
.hero__signal-line strong { font-weight: 600; color: var(--ink); }

.hero__visual {
  width: 100%;
  aspect-ratio: 4 / 3;
  margin: 0;
  overflow: hidden;
  background: var(--paper-2);
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius-md);
}
.hero__visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

@media (min-width: 960px) {
  .hero__primary { min-width: 0; }
  .hero h1 {
    font-size: clamp(2.75rem, 3.2vw, 3.4rem);
    line-height: 1.02;
  }
  .hero .lede {
    max-width: 56ch;
    font-size: clamp(.98rem, 1.05vw, 1.08rem);
    line-height: 1.52;
  }
  .hero__cta-row {
    gap: var(--s-2);
    margin-top: var(--s-5);
  }
  .hero__visual { align-self: start; }
}

.hero__cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  margin-top: var(--s-6);
}

.hero__proof {
  margin-top: var(--s-8);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
.hero__proof > article {
  padding: var(--s-5) var(--s-4);
  border-right: 1px dashed var(--rule-strong);
}
.hero__proof > article:last-child { border-right: none; }
.hero__proof strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2rem, 1.4rem + 2vw, 2.875rem);
  font-variation-settings: "wdth" 88, "wght" 720;
  letter-spacing: -0.025em;
  line-height: 1;
  color: var(--ink);
  margin-bottom: var(--s-2);
}
.hero__proof small {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: var(--s-3);
  line-height: 1.4;
}
.hero__proof p {
  font-size: var(--fs-2);
  color: var(--ink-2);
  margin: 0;
  line-height: 1.45;
}

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

.section-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-4);
  margin-bottom: var(--s-7);
  align-items: end;
}
@media (min-width: 720px) {
  .section-head--split { grid-template-columns: minmax(0,1fr) auto; gap: var(--s-6); }
}
.section-head__eyebrow {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  margin-bottom: var(--s-3);
}
.section-head__eyebrow .case-id { color: var(--redline); }
.section-head__eyebrow .sep { color: var(--ink-fade); }
.section-head h2 {
  font-size: clamp(1.8rem, 1.2rem + 2.5vw, 3rem);
  font-variation-settings: "wdth" 88, "wght" 650;
  letter-spacing: -0.025em;
  margin: 0;
  max-width: 22ch;
}
.section-head__deck {
  font-size: var(--fs-4);
  color: var(--ink-2);
  max-width: 50ch;
  margin: var(--s-4) 0 0;
}

/* ---------- Selected work grid ---------- */

.work-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--ink);
}

.work-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-5);
  padding: var(--s-7) 0;
  border-bottom: 1px solid var(--rule);
  position: relative;
}
@media (min-width: 720px) {
  .work-card {
    grid-template-columns: 80px 1fr;
    gap: var(--s-6);
    padding: var(--s-8) 0;
  }
}
@media (min-width: 1080px) {
  .work-card {
    grid-template-columns: 80px 7fr 5fr;
    gap: var(--s-7);
    align-items: start;
  }
}

.work-card__id {
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.08em;
  color: var(--ink-fade);
  text-transform: uppercase;
  padding-top: var(--s-2);
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}
.work-card__id strong { color: var(--redline); font-weight: 500; }
.work-card__id .work-card__cat { color: var(--ink-soft); font-weight: 400; line-height: 1.4; }

.work-card__body { display: flex; flex-direction: column; gap: var(--s-3); }
.work-card__category-mobile {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-fade);
}
@media (min-width: 720px) { .work-card__category-mobile { display: none; } }

.work-card h3 {
  font-size: clamp(1.5rem, 1.1rem + 1.5vw, 2.25rem);
  font-variation-settings: "wdth" 88, "wght" 680;
  letter-spacing: -0.025em;
  margin: 0;
  line-height: 1.05;
}
.work-card h3 a { color: var(--ink); text-decoration: none; }
.work-card h3 a:hover { color: var(--redline); }

.work-card__deck { font-size: var(--fs-4); color: var(--ink-2); max-width: 56ch; margin: 0; }

.work-card__meta {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  padding-top: var(--s-2);
}
.work-card__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-2);
  border-top: 1px solid var(--rule);
  padding-top: var(--s-4);
}
.work-card__metrics > div { display: flex; flex-direction: column; gap: var(--s-1); }
.work-card__metrics strong {
  font-family: var(--font-display);
  font-size: var(--fs-6);
  font-variation-settings: "wdth" 90, "wght" 680;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.work-card__metrics span {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  line-height: 1.3;
}

.work-card__tags { display: flex; flex-wrap: wrap; gap: var(--s-2); }

.work-card__link {
  margin-top: var(--s-3);
  align-self: flex-start;
}

.work-card--lead { background: linear-gradient(to right, var(--redline-wash) 0, transparent 60%); }
.work-card--lead::before {
  content: "Lead case study";
  position: absolute;
  top: var(--s-5); right: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--redline);
  padding: var(--s-2) var(--s-3);
  border: 1px solid var(--redline);
  border-radius: var(--radius-sm);
}

/* ---------- "How I work" principles ---------- */

.principles {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-5);
}
@media (min-width: 720px) {
  .principles { grid-template-columns: repeat(3, 1fr); gap: var(--s-6); }
}
.principle {
  position: relative;
  padding: var(--s-6) 0 0;
  border-top: 1.5px solid var(--ink);
}
.principle__num {
  position: absolute;
  top: -2px;
  right: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.1em;
  color: var(--ink-fade);
}
.principle h3 {
  font-size: var(--fs-5);
  font-variation-settings: "wdth" 92, "wght" 620;
  letter-spacing: -0.018em;
  margin: 0 0 var(--s-3);
}
.principle p { font-size: var(--fs-3); color: var(--ink-2); margin: 0; line-height: 1.55; }

/* ---------- Testimonials ---------- */

.testimonials-section {
  background: var(--paper-2);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.testimonial-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-5);
}
@media (min-width: 720px) { .testimonial-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1080px) { .testimonial-grid { grid-template-columns: repeat(4, 1fr); } }

.testimonial {
  padding: var(--s-5);
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  position: relative;
}
.testimonial__mark {
  font-family: var(--font-display);
  font-size: 3rem;
  line-height: 0.5;
  color: var(--redline);
  font-variation-settings: "wght" 700;
  height: 1rem;
}
.testimonial p {
  font-size: var(--fs-3);
  color: var(--ink-2);
  line-height: 1.5;
  margin: 0;
  flex: 1;
  font-style: normal;
}
.testimonial cite {
  font-style: normal;
  display: flex;
  flex-direction: column;
  gap: var(--s-1);
  padding-top: var(--s-3);
  border-top: 1px dashed var(--rule);
}
.testimonial cite strong { font-weight: 600; color: var(--ink); font-size: var(--fs-2); }
.testimonial cite span { font-family: var(--font-mono); font-size: var(--fs-0); letter-spacing: 0.05em; color: var(--ink-soft); text-transform: uppercase; }

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

.contact-band {
  text-align: center;
  padding: clamp(3rem, 7vw, 5rem) var(--s-5);
  background: var(--ink);
  color: var(--paper);
  border-top: 1px solid var(--ink);
  position: relative;
}
.contact-band__eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--paper-deep);
  margin-bottom: var(--s-4);
}
.contact-band h2 {
  font-size: clamp(2rem, 1.4rem + 3vw, 3.5rem);
  font-variation-settings: "wdth" 85, "wght" 700;
  letter-spacing: -0.035em;
  margin: 0 0 var(--s-4);
  color: var(--paper);
}
.contact-band__email {
  display: inline-block;
  font-family: var(--font-display);
  font-size: var(--fs-6);
  font-variation-settings: "wdth" 92, "wght" 540;
  letter-spacing: -0.01em;
  color: var(--paper);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 6px;
}
.contact-band__email:hover { color: var(--redline-soft); }

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

.site-footer {
  padding: var(--s-7) 0 var(--s-5);
  background: var(--paper);
  border-top: 1px solid var(--rule);
}
.site-footer__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--s-5);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-5);
  align-items: end;
}
@media (min-width: 720px) {
  .site-footer__inner { grid-template-columns: 2fr 1fr; gap: var(--s-6); padding: 0 var(--s-7); }
}
.site-footer__brand {
  font-family: var(--font-display);
  font-size: var(--fs-5);
  font-variation-settings: "wdth" 88, "wght" 660;
  letter-spacing: -0.02em;
}
.site-footer__brand p { margin: var(--s-2) 0 0; font-family: var(--font-mono); font-size: var(--fs-0); letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-soft); }
.site-footer__links { display: flex; flex-wrap: wrap; gap: var(--s-2) var(--s-4); list-style: none; padding: 0; margin: 0; }
.site-footer__links a {
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.06em;
  color: var(--ink-2);
}
.site-footer__links a:hover { color: var(--redline); }
.site-footer__copy {
  margin-top: var(--s-5);
  padding: var(--s-4) var(--s-5) 0;
  border-top: 1px solid var(--rule);
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3) var(--s-5);
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-fade);
  max-width: var(--content-max);
  margin-left: auto;
  margin-right: auto;
}
@media (min-width: 720px) { .site-footer__copy { padding: var(--s-4) var(--s-7) 0; } }

/* ---------- CASE STUDY ---------- */

.case-back {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  text-decoration: none;
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.06em;
  margin: var(--s-4) 0 0;
  padding: var(--s-2) 0;
}
.case-back:hover { color: var(--redline); }

/* Case hero — looks like a spec document title block */
.case-hero { padding: clamp(2rem, 5vw, 4rem) 0 clamp(2rem, 5vw, 4rem); }

.case-spec-block {
  border: 1px solid var(--ink);
  border-radius: var(--radius-md);
  padding: var(--s-5);
  margin-top: var(--s-6);
  background: var(--paper-2);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-4);
}
@media (min-width: 720px) {
  .case-spec-block { grid-template-columns: repeat(3, 1fr); gap: var(--s-5); padding: var(--s-6); }
}
@media (min-width: 1080px) {
  .case-spec-block { grid-template-columns: repeat(6, 1fr); }
}
.spec-line {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
  padding-bottom: var(--s-3);
  border-bottom: 1px dashed var(--rule-strong);
}
.spec-line:last-child, .case-spec-block .spec-line:nth-last-child(-n+1) { padding-bottom: 0; border-bottom: none; }
@media (min-width: 720px) {
  .spec-line { border-bottom: none; padding-bottom: 0; padding-right: var(--s-4); border-right: 1px dashed var(--rule-strong); }
  .spec-line:last-child { border-right: none; padding-right: 0; }
}
.spec-line__label {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.spec-line__value {
  font-family: var(--font-mono);
  font-size: var(--fs-2);
  color: var(--ink);
  font-weight: 500;
}

.case-hero h1 {
  font-size: clamp(2.25rem, 1.6rem + 3.5vw, 4.25rem);
  font-variation-settings: "wdth" 82, "wght" 700;
  line-height: 0.98;
  letter-spacing: -0.035em;
  max-width: 22ch;
  margin: var(--s-4) 0 var(--s-5);
}
.case-hero h1 .accent { color: var(--redline); }

.case-hero__deck {
  font-size: var(--fs-4);
  max-width: 65ch;
  color: var(--ink-2);
  margin-bottom: var(--s-5);
}

.case-hero__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin: var(--s-6) 0 0;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
.case-hero__metrics > div {
  padding: var(--s-4) var(--s-3);
  border-right: 1px dashed var(--rule-strong);
}
.case-hero__metrics > div:last-child { border-right: none; }
.case-hero__metrics strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 1.2rem + 1.6vw, 2.6rem);
  font-variation-settings: "wdth" 88, "wght" 720;
  letter-spacing: -0.025em;
  line-height: 1;
  margin-bottom: var(--s-2);
}
.case-hero__metrics span {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-soft);
  line-height: 1.35;
}

/* Case TOC — sticky sidebar */
.case-toc {
  display: none;
  position: sticky;
  top: 80px;
  padding-top: var(--s-5);
}
@media (min-width: 1080px) {
  .case-toc { display: block; }
  .case-with-toc {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: var(--s-8);
    align-items: start;
  }
}
.case-toc__title {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 var(--s-4);
  padding-bottom: var(--s-3);
  border-bottom: 1px solid var(--rule);
}
.case-toc__list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: var(--s-2); }
.case-toc__list a {
  display: flex;
  align-items: baseline;
  gap: var(--s-3);
  text-decoration: none;
  color: var(--ink-2);
  font-size: var(--fs-2);
  font-weight: 500;
  padding: var(--s-2) 0;
  border-left: 2px solid transparent;
  padding-left: var(--s-3);
  transition: border-color var(--t-fast), color var(--t-fast);
}
.case-toc__list a:hover { color: var(--redline); }
.case-toc__list a.is-active { border-left-color: var(--redline); color: var(--ink); }
.case-toc__list a span { font-family: var(--font-mono); font-size: var(--fs-0); color: var(--ink-fade); }

/* Case section */
.case-section {
  padding: var(--s-7) 0;
  border-top: 1px solid var(--rule);
}
.case-section__header {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--s-4);
  margin-bottom: var(--s-6);
  align-items: start;
}
.case-section__num {
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.08em;
  color: var(--redline);
  padding-top: var(--s-2);
}
.case-section__label {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: var(--s-2);
}
.case-section h2 {
  font-size: clamp(1.75rem, 1.2rem + 2.2vw, 2.625rem);
  font-variation-settings: "wdth" 88, "wght" 660;
  letter-spacing: -0.025em;
  margin: 0;
  max-width: 24ch;
}
.case-section__body { max-width: 65ch; font-size: var(--fs-4); line-height: 1.55; color: var(--ink-2); }
.case-section__body p { margin: 0 0 var(--s-4); }
.case-section__body p strong, .case-section__body strong { color: var(--ink); font-weight: 600; }
.case-section__body ul { margin: 0 0 var(--s-4); padding-left: var(--s-5); }
.case-section__body li { margin-bottom: var(--s-3); }

/* Pull-out quote callout (research verbatim) */
.callout {
  margin: var(--s-6) 0;
  padding: var(--s-5);
  background: var(--paper-2);
  border-left: 3px solid var(--redline);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: var(--fs-4);
  color: var(--ink);
  position: relative;
}
.callout__attribution {
  display: block;
  margin-top: var(--s-3);
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-style: normal;
  font-weight: 500;
}
.callout--verbatim::before {
  content: "VERBATIM · RESEARCH FINDING";
  position: absolute;
  top: -10px;
  left: var(--s-4);
  background: var(--paper);
  padding: 0 var(--s-3);
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.12em;
  color: var(--redline);
}

/* Design response — numbered grid */
.response-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: var(--s-5) 0 0;
  border-top: 1px solid var(--ink);
}
.response-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-3);
  padding: var(--s-5) 0;
  border-bottom: 1px dashed var(--rule-strong);
}
@media (min-width: 720px) {
  .response-item { grid-template-columns: 60px 1fr; gap: var(--s-5); align-items: start; }
}
.response-item__num {
  font-family: var(--font-mono);
  font-size: var(--fs-2);
  letter-spacing: 0.06em;
  color: var(--redline);
  font-weight: 500;
}
.response-item h4 { margin: 0 0 var(--s-2); font-size: var(--fs-5); font-variation-settings: "wdth" 92, "wght" 620; letter-spacing: -0.015em; }
.response-item p { margin: 0; font-size: var(--fs-3); color: var(--ink-2); line-height: 1.55; max-width: 70ch; }

/* Validation table */
.validation-table {
  margin: var(--s-5) 0 0;
  border: 1px solid var(--ink);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--paper);
}
.validation-table__header {
  background: var(--ink);
  color: var(--paper);
  padding: var(--s-3) var(--s-5);
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
}
.validation-table__meta {
  display: flex;
  gap: var(--s-5);
  padding: var(--s-4) var(--s-5);
  border-bottom: 1px solid var(--rule);
  flex-wrap: wrap;
  background: var(--paper-2);
}
.validation-table__meta > div {
  display: flex;
  flex-direction: column;
  gap: var(--s-1);
}
.validation-table__meta span {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.validation-table__meta strong { font-size: var(--fs-2); font-weight: 600; }

.vrow {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-3);
  padding: var(--s-4) var(--s-5);
  border-bottom: 1px solid var(--rule);
}
@media (min-width: 760px) {
  .vrow { grid-template-columns: 1.2fr 1.6fr 140px; gap: var(--s-5); align-items: center; }
}
.vrow:last-child { border-bottom: none; }
.vrow__finding { font-weight: 600; color: var(--ink); font-size: var(--fs-3); }
.vrow__response { color: var(--ink-2); font-size: var(--fs-3); }
.vrow__status .status-badge {
  display: inline-block;
  padding: var(--s-1) var(--s-3);
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  border: 1px solid;
}
.status-badge--implemented { background: var(--positive-bg); color: var(--positive); border-color: color-mix(in srgb, var(--positive) 30%, transparent); }
.status-badge--shipped { background: var(--positive-bg); color: var(--positive); border-color: color-mix(in srgb, var(--positive) 30%, transparent); }
.status-badge--pilot { background: var(--caution-bg); color: var(--caution); border-color: color-mix(in srgb, var(--caution) 30%, transparent); }
.status-badge--planned { background: var(--neutral-bg); color: var(--ink-2); border-color: var(--rule-strong); }
.status-badge--validated { background: var(--positive-bg); color: var(--positive); border-color: color-mix(in srgb, var(--positive) 30%, transparent); }

.vrow__header { display: none; }
@media (min-width: 760px) {
  .validation-table__rowhead {
    display: grid;
    grid-template-columns: 1.2fr 1.6fr 140px;
    gap: var(--s-5);
    padding: var(--s-3) var(--s-5);
    background: var(--paper-3);
    border-bottom: 1px solid var(--rule);
  }
  .validation-table__rowhead span {
    font-family: var(--font-mono);
    font-size: var(--fs-0);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-soft);
    font-weight: 500;
  }
}

/* Cross-system context table */
.systems-table {
  margin: var(--s-5) 0 0;
  border: 1px solid var(--ink);
  border-radius: var(--radius-md);
  overflow-x: auto;
}
.systems-table table { width: 100%; border-collapse: collapse; min-width: 760px; background: var(--paper); font-size: var(--fs-2); }
.systems-table th, .systems-table td {
  padding: var(--s-3) var(--s-4);
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--rule);
  border-right: 1px dashed var(--rule);
}
.systems-table th:last-child, .systems-table td:last-child { border-right: none; }
.systems-table thead th {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
  border-bottom: none;
  border-right-color: rgba(255,255,255,0.15);
}
.systems-table tbody tr:last-child td { border-bottom: none; }
.systems-table .stage {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--redline);
  font-weight: 500;
  white-space: nowrap;
}

/* What this enabled next — outcome summary */
.outcome-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-4);
  margin-top: var(--s-5);
}
@media (min-width: 720px) { .outcome-grid { grid-template-columns: repeat(2, 1fr); } }
.outcome-card {
  padding: var(--s-5);
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
  position: relative;
}
.outcome-card__label {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: var(--s-2);
}
.outcome-card h4 { font-size: var(--fs-5); font-variation-settings: "wdth" 92, "wght" 620; margin: 0 0 var(--s-3); }
.outcome-card p { margin: 0; color: var(--ink-2); font-size: var(--fs-3); }

/* Reflection / takeaway */
.takeaway {
  padding: var(--s-6);
  background: var(--ink);
  color: var(--paper);
  border-radius: var(--radius-md);
  margin-top: var(--s-5);
}
.takeaway__label {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--paper-deep);
  margin-bottom: var(--s-3);
}
.takeaway p {
  font-family: var(--font-display);
  font-size: var(--fs-6);
  font-variation-settings: "wdth" 92, "wght" 520;
  line-height: 1.25;
  letter-spacing: -0.015em;
  margin: 0;
  max-width: 50ch;
  color: var(--paper);
}

/* Next-project block */
.next-project {
  border-top: 1px solid var(--rule);
  padding: var(--s-7) 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-4);
  align-items: end;
}
@media (min-width: 720px) { .next-project { grid-template-columns: 1fr auto; gap: var(--s-6); } }
.next-project__label {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.next-project h3 { font-size: clamp(1.5rem, 1.2rem + 1.3vw, 2.25rem); font-variation-settings: "wdth" 88, "wght" 660; margin: var(--s-3) 0 var(--s-3); letter-spacing: -0.025em; }
.next-project h3 a { color: var(--ink); text-decoration: none; }
.next-project h3 a:hover { color: var(--redline); }
.next-project p { color: var(--ink-2); margin: 0; max-width: 56ch; }

/* ---------- SVG ARCHITECTURE DIAGRAMS — shared styles ---------- */

.arch-figure {
  margin: var(--s-6) 0;
  padding: var(--s-5);
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: var(--radius-md);
  position: relative;
  background-image:
    linear-gradient(rgba(22,32,51,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22,32,51,0.04) 1px, transparent 1px);
  background-size: 24px 24px;
  background-position: 0 0;
}
.arch-figure__head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--s-3);
  margin-bottom: var(--s-4);
  padding-bottom: var(--s-3);
  border-bottom: 1px dashed var(--rule-strong);
}
.arch-figure__num {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--redline);
}
.arch-figure__label {
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.arch-figure h3 {
  font-size: var(--fs-5);
  font-variation-settings: "wdth" 92, "wght" 620;
  letter-spacing: -0.015em;
  margin: 0 0 var(--s-2);
  flex-basis: 100%;
}
.arch-figure__sub {
  font-size: var(--fs-3);
  color: var(--ink-2);
  margin: var(--s-2) 0 var(--s-5);
  max-width: 65ch;
}
.arch-figure__caption {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--s-3);
  margin-top: var(--s-5);
  padding-top: var(--s-4);
  border-top: 1px dashed var(--rule-strong);
  align-items: start;
}
.arch-figure__caption-label {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--redline);
}
.arch-figure__caption-body {
  font-size: var(--fs-2);
  color: var(--ink-2);
  line-height: 1.5;
}

.arch-svg {
  width: 100%;
  height: auto;
  display: block;
}

/* Legend used under architecture diagrams */
.arch-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-4);
  padding: var(--s-3) 0 0;
  margin-top: var(--s-3);
  border-top: 1px dotted var(--rule);
}
.arch-legend__item {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.arch-legend__swatch { display: inline-block; width: 14px; height: 14px; border-radius: 2px; border: 1px solid var(--ink); }
.arch-legend__swatch--ink { background: var(--ink); }
.arch-legend__swatch--paper { background: var(--paper); }
.arch-legend__swatch--accent { background: var(--redline); border-color: var(--redline); }
.arch-legend__swatch--positive { background: var(--positive); border-color: var(--positive); }
.arch-legend__swatch--caution { background: var(--caution); border-color: var(--caution); }
.arch-legend__swatch--negative { background: var(--negative); border-color: var(--negative); }
.arch-legend__dash { display: inline-block; width: 28px; border-top: 1.5px dashed var(--ink); height: 1px; }

/* ---------- About page ---------- */

.about-hero {
  padding: clamp(2rem, 5vw, 4rem) 0;
}
.about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-6);
  align-items: start;
}
@media (min-width: 880px) {
  .about-hero__grid { grid-template-columns: 7fr 4fr; gap: var(--s-8); }
}
.about-hero__photo {
  position: relative;
  border: 1px solid var(--ink);
  padding: var(--s-3);
  background: var(--paper);
  border-radius: var(--radius-md);
}
.about-hero__photo img { width: 100%; border-radius: var(--radius-sm); }
.about-hero__photo figcaption {
  margin-top: var(--s-3);
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  display: flex;
  justify-content: space-between;
  gap: var(--s-3);
}
.about-hero h1 {
  font-size: clamp(2.25rem, 1.6rem + 3.5vw, 4.25rem);
  margin: var(--s-4) 0;
}

.about-story {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-6);
}
@media (min-width: 880px) { .about-story { grid-template-columns: repeat(3, 1fr); } }
.about-story__col h3 {
  font-size: var(--fs-5);
  font-variation-settings: "wdth" 92, "wght" 620;
  letter-spacing: -0.015em;
  margin: 0 0 var(--s-3);
  padding-top: var(--s-3);
  border-top: 1.5px solid var(--ink);
}
.about-story__col p { color: var(--ink-2); margin: 0 0 var(--s-3); line-height: 1.55; }
.about-story__col a { color: var(--ink); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.about-story__col a:hover { color: var(--redline); }

.about-skills { display: grid; grid-template-columns: 1fr; gap: var(--s-4); }
@media (min-width: 720px) { .about-skills { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1080px) { .about-skills { grid-template-columns: repeat(4, 1fr); } }
.skill-card {
  padding: var(--s-5);
  background: var(--paper);
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}
.skill-card__num {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.12em;
  color: var(--redline);
}
.skill-card h3 {
  font-size: var(--fs-5);
  font-variation-settings: "wdth" 92, "wght" 620;
  letter-spacing: -0.015em;
  margin: 0;
}
.skill-card p { color: var(--ink-2); font-size: var(--fs-2); margin: 0; line-height: 1.55; }
.skill-card ul { list-style: none; padding: 0; margin: var(--s-2) 0 0; display: flex; flex-direction: column; gap: var(--s-1); }
.skill-card li {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding-left: var(--s-3);
  position: relative;
}
.skill-card li::before { content: ""; position: absolute; left: 0; top: 0.55em; width: 6px; height: 1.5px; background: var(--redline); }

/* ---------- Resume page ---------- */

.resume-page { padding: clamp(2rem, 5vw, 4rem) 0; }
.resume-page__head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--s-4);
  margin-bottom: var(--s-6);
  padding-bottom: var(--s-4);
  border-bottom: 1px solid var(--ink);
}
.resume-page__head h1 { font-size: clamp(2rem, 1.5rem + 2.5vw, 3.5rem); margin: 0; }
.resume-doc { display: grid; grid-template-columns: 1fr; gap: var(--s-6); }
@media (min-width: 960px) { .resume-doc { grid-template-columns: 220px 1fr; gap: var(--s-8); } }

.resume-side {
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  position: sticky;
  top: 90px;
  align-self: start;
}
.resume-side__block { display: flex; flex-direction: column; gap: var(--s-1); padding-bottom: var(--s-3); border-bottom: 1px dashed var(--rule-strong); }
.resume-side__label {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.resume-side__value { font-size: var(--fs-2); font-weight: 500; color: var(--ink); }
.resume-side__value a { color: var(--ink); }

.resume-main h2 {
  font-size: var(--fs-5);
  font-variation-settings: "wdth" 92, "wght" 620;
  letter-spacing: -0.01em;
  margin: 0 0 var(--s-3);
  padding-bottom: var(--s-2);
  border-bottom: 1px solid var(--ink);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.resume-section { margin-bottom: var(--s-7); }
.resume-job { margin-bottom: var(--s-5); padding-bottom: var(--s-4); border-bottom: 1px dashed var(--rule-strong); }
.resume-job:last-child { border-bottom: none; }
.resume-job__head { display: flex; flex-wrap: wrap; gap: var(--s-2) var(--s-4); justify-content: space-between; margin-bottom: var(--s-3); }
.resume-job__title { font-size: var(--fs-4); font-weight: 600; color: var(--ink); }
.resume-job__title span { display: block; font-family: var(--font-mono); font-size: var(--fs-1); font-weight: 400; color: var(--ink-soft); letter-spacing: 0.06em; text-transform: uppercase; margin-top: var(--s-1); }
.resume-job__dates { font-family: var(--font-mono); font-size: var(--fs-1); letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-soft); }
.resume-job ul { margin: var(--s-2) 0 0; padding-left: var(--s-5); }
.resume-job li { margin-bottom: var(--s-2); color: var(--ink-2); font-size: var(--fs-3); line-height: 1.55; }

.skill-cluster { margin-bottom: var(--s-4); }
.skill-cluster__label { font-family: var(--font-mono); font-size: var(--fs-0); letter-spacing: 0.1em; text-transform: uppercase; color: var(--redline); display: block; margin-bottom: var(--s-2); }
.skill-cluster__items { font-size: var(--fs-3); color: var(--ink-2); line-height: 1.55; }

/* ---------- Contact page ---------- */
.contact-page { padding: clamp(2rem, 5vw, 4rem) 0; }
.contact-page h1 { font-size: clamp(2rem, 1.4rem + 3vw, 4rem); margin: 0 0 var(--s-5); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-6);
  margin-top: var(--s-6);
}
@media (min-width: 880px) { .contact-grid { grid-template-columns: 4fr 6fr; gap: var(--s-8); align-items: start; } }

.contact-info { display: flex; flex-direction: column; gap: var(--s-4); }
.contact-info__block { padding-bottom: var(--s-3); border-bottom: 1px dashed var(--rule-strong); }
.contact-info__block:last-child { border-bottom: none; }
.contact-info__label { font-family: var(--font-mono); font-size: var(--fs-0); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-soft); display: block; margin-bottom: var(--s-2); }
.contact-info__value { font-size: var(--fs-4); }
.contact-info__value a { color: var(--ink); }

.contact-form { display: flex; flex-direction: column; gap: var(--s-4); padding: var(--s-5); border: 1px solid var(--ink); border-radius: var(--radius-md); background: var(--paper-2); }
.contact-form label { display: flex; flex-direction: column; gap: var(--s-2); font-family: var(--font-mono); font-size: var(--fs-0); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-soft); font-weight: 500; }
.contact-form input,
.contact-form textarea,
.contact-form select {
  font-family: var(--font-body);
  font-size: var(--fs-3);
  padding: var(--s-3) var(--s-4);
  background: var(--paper);
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius-sm);
  color: var(--ink);
  text-transform: none;
  letter-spacing: normal;
  font-weight: 400;
}
.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  outline: none;
  border-color: var(--redline);
  box-shadow: 0 0 0 3px var(--redline-wash);
}
.contact-form textarea { resize: vertical; min-height: 140px; }
.contact-form__status { font-family: var(--font-mono); font-size: var(--fs-1); letter-spacing: 0.06em; min-height: 1.2em; color: var(--ink-soft); }
.contact-form__status.is-success { color: var(--positive); }
.contact-form__status.is-error { color: var(--negative); }
.contact-form__fallback { font-size: var(--fs-2); color: var(--ink-soft); margin: 0; }

/* ---------- Reveal animation ---------- */

.reveal { opacity: 0; transform: translateY(12px); transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out); }
.reveal.is-in { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}

/* ---------- Print rules ---------- */
@media print {
  body { background: white; color: black; }
  body::before { display: none; }
  .site-nav, .site-footer, .contact-band, .case-toc, .arch-figure { display: block; page-break-inside: avoid; }
  a { color: black; text-decoration: underline; }
}

/* ---------- Misc utilities ---------- */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.no-bullets { list-style: none; padding: 0; margin: 0; }
.cluster { display: flex; flex-wrap: wrap; gap: var(--s-3); align-items: center; }

/* small annotation marks used inside case studies */
.annotate {
  display: inline-flex;
  align-items: baseline;
  gap: var(--s-2);
  padding: 0 var(--s-2);
  background: var(--redline-wash);
  color: var(--redline);
  font-family: var(--font-mono);
  font-size: 0.85em;
  letter-spacing: 0.04em;
  border-radius: 2px;
}

/* ============================================================
   PAGE TYPES — work index, about, resume, contact, thanks
   Added v500
   ============================================================ */

/* Generic page hero shared by work index, about, resume, contact */
.page-hero {
  padding: clamp(2.5rem, 6vw, 5rem) 0 clamp(1.5rem, 3vw, 2.5rem);
  border-bottom: 1px solid var(--rule);
}
.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 1.4rem + 3vw, 3.75rem);
  font-variation-settings: "wdth" 82, "wght" 660;
  letter-spacing: -0.028em;
  line-height: 1.05;
  margin: var(--s-3) 0 var(--s-5);
  max-width: 22ch;
  color: var(--ink);
}
.page-hero h1 .accent { color: var(--redline); }
.page-hero__deck {
  font-size: clamp(1rem, 0.95rem + 0.3vw, 1.2rem);
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 64ch;
  margin: 0;
}

/* ============================================================
   WORK INDEX
   ============================================================ */
.work-index-grid {
  padding: clamp(2rem, 4vw, 3.5rem) 0 clamp(2rem, 4vw, 4rem);
}
.work-index-grid .wrap {
  display: grid;
  gap: var(--s-5);
  grid-template-columns: 1fr;
}
.home-work-index-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-5);
  margin-top: var(--s-6);
}
@media (min-width: 760px) {
  .work-index-grid .wrap { grid-template-columns: repeat(2, 1fr); gap: var(--s-6); }
  .home-work-index-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-6); }
  .home-work-index-grid .work-index-card--lead { grid-column: 1 / -1; }
}

.work-index-card {
  border: 1.5px solid var(--ink);
  background: var(--paper);
  padding: clamp(1.5rem, 2vw, 2.25rem);
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  position: relative;
  transition: transform 240ms var(--ease-out), border-color 240ms var(--ease-out), background 240ms var(--ease-out);
}
.work-index-card:hover { transform: translateY(-2px); border-color: var(--redline); }
.work-index-card[data-card-href] { cursor: pointer; }
.work-index-card[data-card-href]:focus-within { border-color: var(--redline); }

.work-index-card__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--s-3);
  flex-wrap: wrap;
}
.work-index-card__id {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  color: var(--redline);
  letter-spacing: 0.12em;
  font-weight: 600;
}
.work-index-card__tag {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  color: var(--ink-fade);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.work-index-card h2 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 1.1rem + 1vw, 1.85rem);
  font-variation-settings: "wdth" 90, "wght" 640;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0;
}
.work-index-card h2 a {
  color: var(--ink);
  text-decoration: none;
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 0 1px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  transition: background-size 320ms var(--ease-out), color 240ms var(--ease-out);
}
.work-index-card h2 a:hover {
  color: var(--redline);
  background-size: 100% 1px;
}

.work-index-card__deck {
  font-size: var(--fs-3);
  color: var(--ink-2);
  line-height: 1.55;
  margin: 0;
}

.work-index-card__metrics {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2) var(--s-5);
  list-style: none;
  padding: var(--s-4) 0 var(--s-4);
  margin: 0;
  border-top: 1px dashed var(--rule-strong);
  border-bottom: 1px dashed var(--rule-strong);
}
.work-index-card__metrics li {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.work-index-card__metrics strong {
  font-family: var(--font-display);
  font-size: var(--fs-4);
  font-variation-settings: "wdth" 88, "wght" 680;
  color: var(--ink);
  letter-spacing: -0.01em;
  line-height: 1;
}
.work-index-card__metrics span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--ink-fade);
  text-transform: uppercase;
}

.work-index-card__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--s-3);
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  color: var(--ink-fade);
  letter-spacing: 0.04em;
}
.work-index-card__cta {
  flex: 0 0 auto;
}

/* ============================================================
   ABOUT PAGE
   ============================================================ */
.about-intro {
  padding: clamp(2rem, 4vw, 3.5rem) 0 clamp(1.5rem, 3vw, 3rem);
}
.about-intro__inner {
  display: grid;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  grid-template-columns: 1fr;
  align-items: start;
}
@media (min-width: 880px) {
  .about-intro__inner { grid-template-columns: 280px 1fr; gap: 3.5rem; }
}
.about-portrait {
  width: 100%;
  max-width: 280px;
  aspect-ratio: 4 / 5;
  background: var(--ink);
  border: 1.5px solid var(--ink);
  position: relative;
  overflow: hidden;
}
.about-portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: contrast(1.02) saturate(0.92);
}
.about-portrait__caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--s-2) var(--s-3);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: flex;
  justify-content: space-between;
}

.about-prose {
  max-width: 56ch;
  font-size: var(--fs-3);
  line-height: 1.6;
  color: var(--ink-2);
}
.about-prose p { margin: 0 0 var(--s-4); }
.about-prose p strong { color: var(--ink); font-weight: 600; }

.about-section {
  padding: clamp(2.5rem, 5vw, 4rem) 0;
  border-top: 1px solid var(--rule);
}
.about-section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1.1rem + 1.5vw, 2.25rem);
  font-variation-settings: "wdth" 86, "wght" 660;
  letter-spacing: -0.02em;
  margin: 0 0 var(--s-2) 0;
  color: var(--ink);
}
.about-section__eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  color: var(--redline);
  letter-spacing: 0.14em;
  font-weight: 600;
  margin-bottom: var(--s-2);
}
.about-section__lead {
  font-size: var(--fs-3);
  line-height: 1.55;
  color: var(--ink-2);
  margin: 0 0 var(--s-6);
  max-width: 56ch;
}

.skills-grid {
  display: grid;
  gap: var(--s-4);
  grid-template-columns: 1fr;
  margin-top: var(--s-5);
}
@media (min-width: 700px) {
  .skills-grid { grid-template-columns: repeat(2, 1fr); gap: var(--s-5); }
}
.skill-card {
  border: 1.5px solid var(--ink);
  background: var(--paper);
  padding: clamp(1.25rem, 1.5vw, 1.75rem);
}
.skill-card__num {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  color: var(--redline);
  letter-spacing: 0.1em;
  font-weight: 600;
}
.skill-card h3 {
  font-family: var(--font-display);
  font-size: var(--fs-5);
  font-variation-settings: "wdth" 90, "wght" 640;
  margin: var(--s-2) 0 var(--s-3);
  letter-spacing: -0.015em;
  color: var(--ink);
}
.skill-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
}
.skill-card li {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  padding: 4px 10px;
  background: var(--paper-2);
  border: 1px solid var(--rule-strong);
  color: var(--ink);
  border-radius: 2px;
}

.testimonials {
  display: grid;
  gap: var(--s-5);
  grid-template-columns: 1fr;
  margin-top: var(--s-5);
}
@media (min-width: 760px) {
  .testimonials { grid-template-columns: repeat(2, 1fr); }
}
.testimonial {
  border-left: 3px solid var(--redline);
  padding: var(--s-4) var(--s-5);
  background: var(--paper-2);
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}
.testimonial__quote {
  font-family: var(--font-display);
  font-size: var(--fs-4);
  font-variation-settings: "wdth" 92, "wght" 480;
  line-height: 1.45;
  color: var(--ink);
  margin: 0;
}
.testimonial__attribution {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-style: normal;
}
.testimonial__attribution strong {
  font-family: var(--font-display);
  font-variation-settings: "wdth" 90, "wght" 620;
  font-size: var(--fs-3);
  color: var(--ink);
}
.testimonial__attribution span {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.06em;
  color: var(--ink-fade);
  text-transform: uppercase;
}

/* ============================================================
   RESUME PAGE
   ============================================================ */
.resume-wrap {
  display: grid;
  gap: clamp(1.5rem, 3vw, 3rem);
  grid-template-columns: 1fr;
  padding: clamp(2rem, 4vw, 3rem) 0 clamp(2.5rem, 5vw, 4rem);
}
@media (min-width: 920px) {
  .resume-wrap { grid-template-columns: 240px 1fr; gap: 3rem; }
}

.resume-sidebar {
  position: sticky;
  top: 96px;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
}
.resume-sidebar__block {
  border: 1.5px solid var(--ink);
  padding: var(--s-4);
  background: var(--paper);
}
.resume-sidebar__label {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  color: var(--redline);
  letter-spacing: 0.12em;
  font-weight: 600;
  margin-bottom: var(--s-2);
}
.resume-sidebar__value {
  font-family: var(--font-display);
  font-size: var(--fs-3);
  font-variation-settings: "wdth" 90, "wght" 600;
  color: var(--ink);
}
.resume-sidebar__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}
.resume-sidebar__list a {
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.resume-sidebar__list a:hover { color: var(--redline); }

.resume-main {
  max-width: 72ch;
  font-size: var(--fs-3);
  line-height: 1.6;
  color: var(--ink-2);
}
.resume-main h2 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 1.1rem + 1vw, 1.85rem);
  font-variation-settings: "wdth" 86, "wght" 660;
  margin: var(--s-7) 0 var(--s-3);
  padding-bottom: var(--s-2);
  border-bottom: 1px solid var(--rule);
  letter-spacing: -0.018em;
  color: var(--ink);
}
.resume-main h2:first-child { margin-top: 0; }
.resume-main h3 {
  font-family: var(--font-display);
  font-size: var(--fs-4);
  font-variation-settings: "wdth" 92, "wght" 620;
  margin: var(--s-5) 0 var(--s-2);
  color: var(--ink);
  letter-spacing: -0.012em;
}
.resume-main .resume-role-meta {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: 0.04em;
  color: var(--ink-fade);
  margin-bottom: var(--s-3);
  flex-wrap: wrap;
  gap: var(--s-2);
}
.resume-main ul {
  margin: 0 0 var(--s-5);
  padding-left: 0;
  list-style: none;
}
.resume-main ul li {
  padding-left: var(--s-4);
  position: relative;
  margin-bottom: var(--s-2);
}
.resume-main ul li::before {
  content: "▸";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--redline);
  font-family: var(--font-mono);
  font-size: 0.85em;
}
.resume-main p { margin: 0 0 var(--s-3); }
.resume-main p strong { color: var(--ink); font-weight: 600; }
.resume-main .resume-skills-cluster {
  display: grid;
  gap: var(--s-3);
  grid-template-columns: 1fr;
  margin: var(--s-4) 0;
}
@media (min-width: 600px) {
  .resume-main .resume-skills-cluster { grid-template-columns: 1fr 2fr; gap: var(--s-5); }
}
.resume-main .resume-skills-cluster > strong {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  color: var(--redline);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact-wrap {
  display: grid;
  gap: clamp(2rem, 4vw, 4rem);
  grid-template-columns: 1fr;
  padding: clamp(2rem, 4vw, 3.5rem) 0 clamp(2.5rem, 5vw, 4rem);
}
@media (min-width: 880px) {
  .contact-wrap { grid-template-columns: 1fr 1fr; gap: 4rem; }
}
.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--s-5);
}
.contact-info__block {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}
.contact-info__label {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  color: var(--redline);
  letter-spacing: 0.12em;
  font-weight: 600;
}
.contact-info__value {
  font-family: var(--font-display);
  font-size: var(--fs-4);
  font-variation-settings: "wdth" 88, "wght" 600;
  color: var(--ink);
  letter-spacing: -0.015em;
}
.contact-info__value a { color: var(--ink); text-decoration: none; border-bottom: 1.5px solid var(--redline); }
.contact-info__value a:hover { color: var(--redline); }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  border: 1.5px solid var(--ink);
  padding: clamp(1.5rem, 2vw, 2rem);
  background: var(--paper);
}
.contact-form__field {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}
.contact-form__field label {
  font-family: var(--font-mono);
  font-size: var(--fs-0);
  color: var(--ink);
  letter-spacing: 0.1em;
  font-weight: 600;
  text-transform: uppercase;
}
.contact-form__field input,
.contact-form__field textarea {
  font-family: var(--font-body);
  font-size: var(--fs-3);
  color: var(--ink);
  background: var(--paper-2);
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  padding: var(--s-3);
  width: 100%;
  transition: border-color 200ms var(--ease-out), background 200ms var(--ease-out);
}
.contact-form__field input:focus,
.contact-form__field textarea:focus {
  outline: none;
  border-color: var(--redline);
  background: var(--paper);
}
.contact-form__field textarea { resize: vertical; min-height: 140px; }
.contact-form button[type="submit"] {
  align-self: flex-start;
  padding: var(--s-3) var(--s-5);
  background: var(--ink);
  color: var(--paper);
  border: 1.5px solid var(--ink);
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 200ms var(--ease-out), color 200ms var(--ease-out), border-color 200ms var(--ease-out);
}
.contact-form button[type="submit"]:hover {
  background: var(--redline);
  border-color: var(--redline);
}

/* Thanks page */
.thanks-block {
  padding: clamp(4rem, 8vw, 7rem) 0;
  text-align: center;
}
.thanks-block h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 1.4rem + 3vw, 3.75rem);
  font-variation-settings: "wdth" 82, "wght" 660;
  letter-spacing: -0.028em;
  margin: var(--s-3) 0 var(--s-4);
  color: var(--ink);
}
.thanks-block p {
  font-size: var(--fs-3);
  color: var(--ink-2);
  margin: 0 auto var(--s-5);
  max-width: 48ch;
  line-height: 1.55;
}

/* =====================================================================
   v501 · v448 mineral design system + visual evidence layer
   ===================================================================== */

body {
  background:
    linear-gradient(180deg, rgba(11,107,88,.045), rgba(11,107,88,0) 420px),
    var(--paper);
}
body::before {
  background-size: 96px 96px;
  opacity: .22;
}
.site-nav,
.case-spec-block,
.work-index-card,
.arch-figure,
.contact-form {
  box-shadow: 0 10px 30px rgba(15,23,20,.05);
}
.work-index-card,
.arch-figure,
.contact-form { border-radius: var(--radius-lg); }
.btn,
.nav-cta,
.tag,
.status-badge { border-radius: 999px; }
.arch-svg text { font-family: var(--font-body) !important; }

/* Five-frame homepage introduction */
body.home-intro-active { overflow: hidden; }
.home-intro-sequence {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 22%,rgba(11,107,88,.10),transparent 34%),
    radial-gradient(circle at 82% 74%,rgba(111,207,184,.10),transparent 30%),
    linear-gradient(180deg,rgba(247,249,248,.99),rgba(237,240,238,.99));
  opacity: 1;
  visibility: visible;
  transition: opacity .8s ease, visibility .8s ease;
}
.home-intro-sequence::before {
  content: "";
  position: absolute;
  inset: clamp(18px,2vw,32px);
  border: 1px solid rgba(15,23,20,.10);
  border-radius: clamp(24px,3vw,42px);
  pointer-events: none;
}
.home-intro-sequence.is-complete {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.home-intro-frame {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: clamp(3rem,7vw,7rem);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(.99);
  transition: opacity .65s ease, transform .8s var(--ease-out), visibility .65s ease;
}
.home-intro-frame.is-active { opacity: 1; visibility: visible; transform: none; }
.home-intro-frame__inner { width: min(100%,1080px); margin: auto; text-align: center; }
.home-intro-frame__inner--short { width: min(100%,920px); }
.home-intro-frame p {
  margin: 0 auto;
  max-width: 15ch;
  font-family: var(--font-display);
  font-size: clamp(3rem,7.4vw,7.5rem);
  line-height: .96;
  letter-spacing: -.055em;
  font-weight: 400;
  text-wrap: balance;
}
.home-intro-frame[data-home-intro-frame="3"] p,
.home-intro-frame[data-home-intro-frame="4"] p { max-width: 18ch; font-size: clamp(2.55rem,6vw,6.25rem); }
.home-intro-frame--pearson p {
  display: grid;
  gap: clamp(.75rem,1.8vw,1.35rem);
  max-width: 18ch;
}
.home-intro-frame__context {
  display: block;
  color: var(--ink-2);
  font-size: clamp(1.35rem,2.7vw,2.8rem);
  line-height: 1.08;
  letter-spacing: -.035em;
}
.home-intro-frame__pearson {
  display: block;
  color: var(--redline);
  font-size: clamp(3.8rem,10.5vw,10rem);
  line-height: .88;
  letter-spacing: -.065em;
  font-weight: 500;
  opacity: 0;
  transform: translateY(.16em) scale(.98);
}
.home-intro-frame--pearson.is-active .home-intro-frame__pearson {
  animation: home-intro-pearson-reveal .7s .18s var(--ease-out) forwards;
}
@keyframes home-intro-pearson-reveal {
  to { opacity: 1; transform: none; }
}
.home-intro-frame__label {
  margin-bottom: clamp(1rem,2vw,1.6rem);
  color: var(--redline);
  font-size: clamp(.72rem,.8vw,.86rem);
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.home-intro-frame blockquote {
  margin: 0 auto;
  max-width: 35ch;
  font-family: var(--font-display);
  font-size: clamp(1.4rem,2.45vw,3rem);
  line-height: 1.16;
  letter-spacing: -.035em;
  font-weight: 450;
  text-wrap: balance;
}
.home-intro-frame blockquote::before {
  content: "“";
  display: block;
  height: .45em;
  margin-bottom: .18em;
  color: var(--redline);
  opacity: .32;
  font-size: 1.55em;
  line-height: .5;
}
.home-intro-frame footer {
  display: grid;
  justify-items: center;
  gap: .4rem;
  margin-top: clamp(1.35rem,2.5vw,2.25rem);
}
.home-intro-frame footer strong { color: var(--redline); font-size: clamp(1.05rem,1.4vw,1.35rem); }
.home-intro-frame footer span { color: var(--ink-3); font-size: clamp(.82rem,1vw,1rem); }
.home-intro-frame footer a {
  margin-top: .25rem;
  color: var(--redline);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.home-intro-skip {
  position: absolute;
  z-index: 4;
  top: clamp(1.5rem,3vw,3rem);
  right: clamp(1.5rem,3vw,3rem);
  min-height: 44px;
  padding: .65rem 1rem;
  border: 1px solid rgba(11,107,88,.25);
  border-radius: 999px;
  background: rgba(255,255,255,.78);
  color: var(--redline);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

/* Before / after comparison component */
.media-compare {
  --compare-position: 50%;
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  background: var(--paper-deep);
  box-shadow: 0 18px 50px rgba(15,23,20,.08);
}
.media-compare__image,
.media-compare__after {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.media-compare__image {
  object-fit: contain;
  object-position: center;
  background: #fff;
}
.media-compare__after {
  width: 100%;
  overflow: hidden;
  background: #fff;
  clip-path: inset(0 0 0 var(--compare-position));
}
.media-compare__after .media-compare__image { width: 100%; max-width: 100%; }
.media-compare__label {
  position: absolute;
  top: 14px;
  z-index: 4;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(15,23,20,.82);
  color: #fff;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  pointer-events: none;
}
.media-compare__label--before { left: 14px; }
.media-compare__label--after { right: 14px; background: rgba(11,107,88,.9); }
.media-compare__range {
  position: absolute;
  inset: 0;
  z-index: 5;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: ew-resize;
}
.media-compare__handle {
  position: absolute;
  z-index: 4;
  top: 0;
  bottom: 0;
  left: var(--compare-position);
  width: 3px;
  transform: translateX(-50%);
  background: #fff;
  box-shadow: 0 0 0 1px rgba(15,23,20,.18);
  pointer-events: none;
}
.media-compare__handle::after {
  content: "↔";
  position: absolute;
  top: 50%;
  left: 50%;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  transform: translate(-50%,-50%);
  border-radius: 50%;
  background: #fff;
  color: var(--redline);
  font-weight: 800;
  box-shadow: 0 8px 24px rgba(15,23,20,.18);
}
.media-compare:focus-within { outline: 3px solid var(--focus,rgba(11,107,88,.35)); outline-offset: 3px; }

/* Comparison cards on home and Work index */
.work-card__media { grid-column: 1 / -1; margin-bottom: var(--s-2); }
.work-card__media .media-compare { aspect-ratio: 2.15 / 1; }
.work-index-card__media { order: -1; margin: calc(-1 * clamp(1.5rem,2vw,2.25rem)); margin-bottom: var(--s-2); }
.work-index-card__media .media-compare { border-radius: var(--radius-lg) var(--radius-lg) 0 0; box-shadow: none; border: 0; border-bottom: 1px solid var(--rule); }

/* Case-study visual evidence rail */
.case-media-evidence { padding: 0 0 clamp(3rem,6vw,5.5rem); }
.case-media-evidence__head { max-width: 760px; margin-bottom: var(--s-6); }
.case-media-evidence__head .case-id { display: block; margin-bottom: var(--s-3); }
.case-media-evidence__head h2 { margin-bottom: var(--s-3); }
.case-media-evidence__head p { color: var(--ink-2); font-size: var(--fs-4); }
.case-media-evidence__hero,
.case-media-evidence__video,
.case-media-evidence__gallery figure {
  overflow: hidden;
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  background: var(--paper-2);
  box-shadow: 0 12px 35px rgba(15,23,20,.06);
}
.case-media-evidence__hero { margin-bottom: var(--s-5); }
.case-media-evidence__hero img { width: 100%; max-height: 680px; object-fit: cover; }
.case-media-evidence__video { margin-top: var(--s-5); }
.case-media-evidence__video video { width: 100%; background: var(--ink); }
.case-media-evidence__gallery {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: var(--s-4);
  margin-top: var(--s-5);
}
.case-media-evidence__gallery figure { margin: 0; }
.case-media-evidence__gallery img { width: 100%; height: 100%; min-height: 220px; object-fit: contain; background: #fff; }
.case-media-evidence figcaption {
  padding: 12px 15px;
  border-top: 1px solid var(--rule);
  color: var(--ink-3);
  font-size: .8rem;
  line-height: 1.4;
}

/* v502: contextual evidence placed inside the narrative it supports */
.case-inline-media {
  display: grid;
  gap: var(--s-4);
  margin-top: clamp(1.75rem,4vw,3rem);
  padding-top: clamp(1.25rem,2.5vw,2rem);
  border-top: 1px solid var(--rule);
}
.case-inline-evidence,
.case-inline-block,
.case-inline-video,
.case-inline-gallery figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  background: var(--paper-2);
  box-shadow: 0 12px 35px rgba(15,23,20,.06);
}
.case-inline-evidence img,
.case-inline-gallery img {
  width: 100%;
  height: auto;
  max-height: 680px;
  object-fit: contain;
  background: #fff;
}
.case-inline-gallery {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: var(--s-4);
}
.case-inline-gallery--single { grid-template-columns: 1fr; }
.case-inline-video video { width: 100%; background: #000; }
.case-inline-media figcaption {
  padding: 12px 15px;
  border-top: 1px solid var(--rule);
  color: var(--ink-3);
  font-size: .82rem;
  line-height: 1.45;
}
.case-inline-block > .media-compare { border: 0; border-radius: 0; box-shadow: none; }
.case-inline-media[data-evidence-for="problem"] { border-top-color: color-mix(in srgb,var(--redline) 34%,var(--rule)); }
.case-inline-media[data-evidence-for="research"] figcaption::before { content: "Research artifact · "; color: var(--redline); font-weight: 700; }
.case-inline-media[data-evidence-for="model"] figcaption::before { content: "Decision artifact · "; color: var(--redline); font-weight: 700; }
.case-inline-media[data-evidence-for="validation"] figcaption::before { content: "Validation artifact · "; color: var(--redline); font-weight: 700; }

/* Stable interactive before/after evidence inside the case-study hero */
.case-hero__layout {
  display: grid;
  grid-template-columns: minmax(0,1.12fr) minmax(340px,.88fr);
  column-gap: clamp(2rem,4vw,4.5rem);
  row-gap: clamp(1.75rem,3vw,2.75rem);
  align-items: center;
}
.case-hero__copy { min-width: 0; }
.case-hero__details {
  grid-column: 1 / -1;
  min-width: 0;
  width: 100%;
}
.case-hero__details .case-spec-block { margin-top: 0; }
.case-hero__comparison {
  min-width: 0;
  width: 100%;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: 0 18px 50px rgba(15,23,20,.08);
}
.case-hero__comparison .case-fast-proof__heading {
  padding: clamp(1rem,2vw,1.35rem);
}
.case-hero__comparison .case-fast-proof__heading h2 {
  font-size: clamp(1.25rem,1.8vw,1.7rem);
  line-height: 1.15;
}
.case-hero__comparison .media-compare {
  aspect-ratio: 4 / 3;
  border: 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  border-radius: 0;
  box-shadow: none;
}
.case-hero__comparison figcaption,
.case-fast-proof figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--rule);
  color: var(--ink-3);
  font-size: .82rem;
  line-height: 1.45;
}
.case-fast-proof {
  padding: clamp(2rem,4vw,3.5rem) 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: var(--paper-2);
}
.case-fast-proof .wrap {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: clamp(1rem,2.5vw,1.75rem);
  align-items: start;
}
.case-fast-proof__block {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  background: var(--paper-3);
  box-shadow: 0 12px 35px rgba(15,23,20,.06);
}
.case-fast-proof__block:only-child { grid-column: 1 / -1; }
.case-fast-proof__heading { padding: 18px 18px 14px; }
.case-fast-proof__heading .case-id { display: block; margin-bottom: 8px; }
.case-fast-proof__heading h2 {
  margin: 0;
  font-size: clamp(1.35rem,2.3vw,1.9rem);
  line-height: 1.12;
  font-weight: 450;
  letter-spacing: -.025em;
}
.case-fast-proof__video video { width: 100%; aspect-ratio: 16 / 9; object-fit: contain; background: #000; }
.case-fast-proof .media-compare { border: 0; border-radius: 0; box-shadow: none; aspect-ratio: 16 / 9; }

/* Homepage product demo */
.hero-media-showcase {
  display: grid;
  grid-template-columns: minmax(0,1fr) minmax(260px,.42fr);
  gap: var(--s-6);
  align-items: center;
  margin-top: var(--s-7);
  padding: clamp(1rem,2.5vw,2rem);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  background: var(--paper-2);
  box-shadow: 0 18px 50px rgba(15,23,20,.08);
}
.hero-media-showcase__media { position: relative; overflow: hidden; border-radius: calc(var(--radius-lg) - 4px); }
.hero-media-showcase__media img { width: 100%; }
.hero-media-showcase__copy p { color: var(--ink-2); }
.hero-demo-hotspot {
  position: absolute;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid rgba(255,255,255,.7);
  border-radius: 999px;
  background: rgba(15,23,20,.86);
  color: #fff;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  box-shadow: 0 7px 22px rgba(15,23,20,.22);
}
.hero-demo-hotspot:hover { background: var(--redline); }
.hero-demo-hotspot--smart { left: 11%; top: 24%; }
.hero-demo-hotspot--workspace { left: 40%; bottom: 12%; }
.hero-demo-hotspot--biometrics { right: 12%; bottom: 22%; }

.demo-modal { position: fixed; inset: 0; z-index: 1100; display: none; }
.demo-modal.is-open { display: block; }
.demo-modal__backdrop { position: absolute; inset: 0; background: rgba(15,23,20,.76); backdrop-filter: blur(7px); }
.demo-modal__panel {
  position: relative;
  z-index: 1;
  width: min(calc(100% - 32px),980px);
  max-height: calc(100vh - 48px);
  margin: 24px auto;
  overflow: auto;
  border-radius: var(--radius-lg);
  background: var(--paper-2);
  box-shadow: 0 30px 90px rgba(15,23,20,.35);
}
.demo-modal__head { display: flex; justify-content: space-between; gap: 20px; padding: 18px 20px; border-bottom: 1px solid var(--rule); }
.demo-modal__head h2 { font-size: 1.35rem; line-height: 1.25; margin: 0; }
.demo-modal__close { width: 44px; height: 44px; flex: 0 0 auto; border: 1px solid var(--rule); border-radius: 50%; background: #fff; font-size: 1.5rem; }
.demo-modal__video { width: 100%; background: #000; }
.demo-modal__actions { padding: 16px 20px 22px; }
body.modal-open { overflow: hidden; }

@media (max-width:760px) {
  h1 { font-size: clamp(2.1rem,10vw,3.1rem); line-height: .98; }
  h2 { font-size: clamp(1.75rem,8vw,2.45rem); line-height: 1.04; }
  h3 { font-size: clamp(1.4rem,7vw,1.9rem); line-height: 1.08; }
  .home-intro-frame { padding: 4rem 1.4rem 2.25rem; }
  .home-intro-frame p { font-size: clamp(2.1rem,12vw,3.75rem); line-height: 1; }
  .home-intro-frame[data-home-intro-frame="3"] p,
  .home-intro-frame[data-home-intro-frame="4"] p { font-size: clamp(1.8rem,9.5vw,3rem); }
  .home-intro-frame__context { font-size: clamp(1.15rem,5.6vw,1.65rem); }
  .home-intro-frame__pearson { font-size: clamp(3.2rem,18vw,5.4rem); }
  .home-intro-frame__label { margin-bottom: .85rem; }
  .home-intro-frame blockquote { font-size: clamp(1rem,5.1vw,1.58rem); line-height: 1.2; }
  .home-intro-frame footer { margin-top: 1rem; }
  .hero-media-showcase { grid-template-columns: 1fr; }
  .hero-media-showcase__copy { order: -1; }
  .work-card__media .media-compare { aspect-ratio: 4 / 3; }
  .case-media-evidence__gallery { grid-template-columns: 1fr; }
  .case-media-evidence__gallery img { min-height: 0; }
  .case-inline-gallery { grid-template-columns: 1fr; }
  .case-inline-media { margin-top: 1.5rem; padding-top: 1rem; }
  .case-hero__layout { grid-template-columns: 1fr; gap: 1.5rem; }
  .case-hero__comparison { margin-top: .25rem; }
  .case-fast-proof .wrap { grid-template-columns: 1fr; }
  .case-fast-proof__heading { padding: 15px 14px 12px; }
  .media-compare { aspect-ratio: 4 / 3; }
  .case-fast-proof .media-compare { aspect-ratio: 4 / 3; }
}

@media (min-width:761px) and (max-width:959px) {
  .case-hero__layout { grid-template-columns: 1fr; gap: 2rem; }
  .case-hero__comparison { width: min(100%,820px); }
}

@media (min-width:960px) {
  .case-hero { padding-top: clamp(1.5rem,3vw,2.75rem); padding-bottom: clamp(2rem,4vw,3.5rem); }
  .case-hero__layout h1 {
    font-size: clamp(2.65rem,3.25vw,3.55rem);
    line-height: 1.02;
    letter-spacing: -.035em;
  }
  .case-hero__copy .case-hero__deck {
    font-size: clamp(1rem,1.15vw,1.12rem);
    line-height: 1.55;
  }
  .case-hero__copy .case-spec-block {
    grid-template-columns: repeat(3,minmax(0,1fr));
    gap: 1rem;
    padding: 1.1rem;
    margin-top: 1.25rem;
  }
  .case-hero__copy .spec-line {
    min-width: 0;
    padding: 0;
    border-right: 0;
  }
  .case-hero__copy .spec-line__value { font-size: .78rem; line-height: 1.35; }
  .case-hero__copy .case-hero__metrics { margin-top: 1.25rem; }
  .case-hero__copy .case-hero__metrics > div { padding: .9rem .65rem; }
  .case-hero__copy .case-hero__metrics strong { font-size: clamp(1.45rem,2vw,2.15rem); }
  .case-hero__details .case-spec-block {
    grid-template-columns: repeat(3,minmax(0,1fr));
  }
  .case-hero__details .spec-line {
    min-width: 0;
    border-right: 0;
  }
}

@media (prefers-reduced-motion:reduce) {
  .home-intro-sequence { display: none; }
  .home-intro-frame__pearson { animation: none; opacity: 1; transform: none; }
}

/* Keep legacy component selectors inside the v448 Manrope hierarchy. */
h1,h2,h3,h4,h5,.h-mega,
.hero h1,.page-hero h1,.case-hero h1,
.section-head h2,.case-section h2,.contact-band h2,
.work-card h3,.arch-figure h3,.response-item h4,
.work-index-card h2,.case-hero__metrics strong,
.work-card__metrics strong,.work-index-card__metrics strong {
  font-family: var(--font-display);
  font-variation-settings: normal;
  font-stretch: normal;
}

@media (min-width:761px) {
  .hero h1,.page-hero h1,.case-hero h1 {
    font-size: 4rem;
    line-height: 4.125rem;
    font-weight: 400;
    letter-spacing: -.035em;
  }
  .section-head h2,.case-section h2,.contact-band h2 {
    font-size: 2.875rem;
    line-height: 3.125rem;
    font-weight: 400;
    letter-spacing: -.03em;
  }
  .work-card h3,.arch-figure h3 {
    font-size: 1.875rem;
    line-height: 2.1875rem;
    font-weight: 450;
    letter-spacing: -.02em;
  }
  .response-item h4 {
    font-size: 1.375rem;
    line-height: 1.75rem;
    font-weight: 500;
  }
}

/* Keep the denser v508 case-study hero within the first desktop viewport. */
@media (min-width:960px) {
  .case-hero__layout h1 {
    font-size: clamp(2.65rem,3.25vw,3.55rem);
    line-height: 1.02;
  }
  body[data-page="home"] .hero h1 {
    font-size: clamp(2.75rem,3.2vw,3.4rem);
    line-height: 1.02;
  }
}

html { scroll-padding-top: 88px; }
body {
  color: var(--ink);
  background: var(--paper);
  background-image: none !important;
  font-size: 16px;
  line-height: 1.62;
}
body::before { display: none !important; }

p,
.case-section__body,
.work-index-card__deck,
.work-card__deck,
.page-hero__deck,
.lede,
.about-prose,
.resume-main,
.contact-info__value {
  color: var(--ink-2);
}

h1, h2, h3, h4, h5,
.h-mega,
.hero h1,
.page-hero h1,
.case-hero h1,
.section-head h2,
.case-section h2,
.contact-band h2,
.work-card h3,
.work-index-card h2,
.arch-figure h3,
.response-item h4 {
  color: var(--ink);
  font-weight: 400;
  letter-spacing: -.032em;
}

h3,
.work-card h3,
.work-index-card h2,
.arch-figure h3 { font-weight: 450; }
h4, h5, .response-item h4 { font-weight: 520; }

.mono-label,
.eyebrow,
.case-id,
.hero__id,
.section-head__eyebrow,
.work-index-card__id,
.work-index-card__tag,
.work-index-card__meta,
.work-card__id,
.spec-line__label,
.case-section__label,
.case-section__num,
.resume-side__label,
.resume-sidebar__label,
.contact-info__label,
.skill-card__num,
.outcome-card__label,
.arch-figure__num,
.arch-figure__label,
.arch-figure__caption-label,
.about-section__eyebrow,
.skill-cluster__label {
  letter-spacing: .095em;
  font-weight: 600;
}

.case-id,
.hero__id,
.work-index-card__id,
.skill-card__num,
.case-section__num,
.arch-figure__num,
.skill-cluster__label,
.about-section__eyebrow,
.resume-sidebar__label,
.resume-main .resume-skills-cluster > strong,
.contact-info__label { color: var(--redline); }

/* Navigation */
.site-nav {
  background: rgba(247,246,241,.88);
  border-bottom: 1px solid var(--surface-border);
  box-shadow: none;
}
.site-nav__inner { padding-top: .9rem; padding-bottom: .9rem; }
.brand__mark {
  background: var(--ink);
  color: #fff;
  border-radius: 999px;
  font-weight: 700;
}
.brand,
.nav-links a {
  color: var(--ink-2);
  font-weight: 600;
}
.nav-links a:hover {
  color: var(--redline);
  background: rgba(11,107,88,.06);
}
.nav-links a[aria-current="page"] {
  color: var(--redline);
  border-bottom-color: var(--redline);
}
.nav-links a.nav-cta,
.btn {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}
.nav-links a.nav-cta:hover,
.btn:hover {
  background: var(--redline);
  border-color: var(--redline);
  color: #fff;
}
.nav-toggle { background: var(--paper-2); border-color: var(--surface-border); }

/* Buttons, tags, links */
.btn {
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: .92rem;
  letter-spacing: .005em;
  text-transform: none;
  font-weight: 700;
  box-shadow: none;
}
.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--surface-border-strong);
}
.btn--ghost:hover {
  background: var(--redline);
  border-color: var(--redline);
  color: #fff;
}
.text-link {
  color: var(--redline);
  border-bottom-color: rgba(11,107,88,.35);
}
.tag,
.status-pill,
.status-badge,
.vrow__status .status-badge {
  background: var(--paper-2);
  border-color: var(--surface-border);
  color: var(--ink-2);
  border-radius: 999px;
}
.status-pill { background: var(--positive-bg); color: var(--redline); }
.status-badge--implemented,
.status-badge--shipped,
.status-badge--validated { background: var(--positive-bg); color: var(--positive); }
.status-badge--pilot { background: var(--caution-bg); color: var(--caution); }
.status-badge--planned { background: var(--neutral-bg); color: var(--ink-2); }

/* Layout rhythm */
.section { padding: clamp(3.5rem, 7vw, 6.75rem) 0; }
.section--tight { padding: clamp(2.5rem, 5vw, 4.5rem) 0; }
.divider-rule,
.page-hero,
.case-section,
.next-project,
.about-section { border-color: var(--surface-border); }
.wrap,
.wrap-narrow,
.wrap-prose { max-width: min(var(--content-max), 100%); }

/* Homepage */
.home-intro-sequence {
  background: linear-gradient(180deg, rgba(251,250,246,.99), rgba(247,246,241,.99));
}
.home-intro-sequence::before {
  border-color: var(--surface-border);
  border-radius: clamp(22px, 3vw, 36px);
}
.home-intro-frame p,
.home-intro-frame blockquote { color: var(--ink); }
.home-intro-frame__context,
.home-intro-frame footer span { color: var(--ink-2); }
.home-intro-skip {
  background: var(--paper-2);
  border-color: var(--surface-border-strong);
  color: var(--redline);
}

.hero { padding-top: clamp(3rem, 7vw, 5.75rem); }
.hero__rule { display: none; }
.hero h1 {
  letter-spacing: -.045em;
  font-weight: 400;
}
.hero h1 .underline-mark::after { opacity: .14; height: .14em; }
.hero .lede { color: var(--ink-2); }
.hero__visual,
.hero__signal,
.work-index-card,
.case-spec-block,
.arch-figure,
.case-inline-evidence,
.case-inline-block,
.case-inline-video,
.case-inline-gallery figure,
.case-hero__comparison,
.case-fast-proof__block,
.validation-table,
.systems-table,
.outcome-card,
.skill-card,
.resume-sidebar__block,
.contact-form,
.about-portrait,
.testimonial {
  background: var(--paper-2);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--surface-shadow-soft);
}
.hero__visual {
  border-color: var(--surface-border);
  box-shadow: var(--surface-shadow);
}
.hero__visual img { object-position: center top; }
.hero__proof {
  gap: var(--s-4);
  border: 0;
  margin-top: clamp(2.5rem,5vw,4.25rem);
}
.hero__proof > article {
  padding: clamp(1.15rem,2vw,1.6rem);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  background: var(--paper-2);
  box-shadow: var(--surface-shadow-soft);
}
.hero__proof strong,
.case-hero__metrics strong,
.work-index-card__metrics strong,
.work-card__metrics strong {
  font-weight: 500;
  color: var(--ink);
}
.hero__proof small,
.work-index-card__metrics span,
.work-card__metrics span,
.case-hero__metrics span { color: var(--ink-soft); }

.hero-media-showcase {
  background: var(--paper-2);
  border-color: var(--surface-border);
  box-shadow: var(--surface-shadow);
}
.hero-media-showcase__copy p { color: var(--ink-2); }
.hero-media-showcase__copy .case-id,
.hero-media-showcase__copy h2 { color: var(--ink); }
.hero-media-showcase__media { border-radius: calc(var(--radius-lg) - 6px); }
.hero-demo-hotspot {
  background: rgba(17,22,19,.88);
  color: #fff;
}
.hero-demo-hotspot:hover { background: var(--redline); color: #fff; }

/* Work cards */
.work-grid { border-top: 0; gap: var(--s-5); }
.work-card {
  padding: clamp(1.5rem, 3vw, 2.5rem);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  background: var(--paper-2);
  box-shadow: var(--surface-shadow-soft);
}
.work-card--lead {
  background: linear-gradient(180deg, rgba(11,107,88,.045), rgba(255,255,255,1));
}
.work-card--lead::before {
  border-color: rgba(11,107,88,.24);
  background: var(--positive-bg);
  color: var(--redline);
  border-radius: 999px;
}
.work-card__metrics,
.work-index-card__metrics {
  border-top-color: var(--surface-border);
  border-bottom-color: var(--surface-border);
}
.work-index-grid .wrap,
.home-work-index-grid { gap: clamp(1.25rem,2.25vw,2rem); }
.work-index-card {
  padding: clamp(1.15rem, 2vw, 1.85rem);
  transition: transform 220ms var(--ease-out), border-color 220ms var(--ease-out), box-shadow 220ms var(--ease-out);
}
.work-index-card:hover,
.work-index-card[data-card-href]:focus-within {
  transform: translateY(-2px);
  border-color: rgba(11,107,88,.45);
  box-shadow: 0 18px 45px rgba(17,22,19,.07);
}
.work-index-card__media .media-compare,
.work-card__media .media-compare {
  border-bottom-color: var(--surface-border);
  background: #fff;
}

/* Testimonials and sections */
.testimonials-section {
  background: transparent;
  border-top: 1px solid var(--surface-border);
  border-bottom: 1px solid var(--surface-border);
}
.testimonial {
  border-left: 0;
  gap: var(--s-4);
}
.testimonial__mark { color: var(--redline); opacity: .45; }
.testimonial p,
.testimonial__quote { color: var(--ink-2); }
.testimonial cite,
.testimonial__attribution { border-top-color: var(--surface-border); }
.testimonial cite span,
.testimonial__attribution span { color: var(--ink-soft); }

.principle { border-top-color: var(--surface-border-strong); }
.principle__num { color: var(--ink-soft); }

/* Case-study pages */
.case-back { color: var(--ink-2); }
.case-hero { padding-top: clamp(2rem, 4vw, 3.25rem); }
.case-spec-block { border-color: var(--surface-border); }
.spec-line { border-bottom-color: var(--surface-border); }
@media (min-width: 720px) { .spec-line { border-right-color: var(--surface-border); } }
.spec-line__value { color: var(--ink); font-family: var(--font-body); }
.case-hero__metrics {
  border-top: 1px solid var(--surface-border-strong);
  border-bottom: 1px solid var(--surface-border-strong);
}
.case-hero__metrics > div { border-right-color: var(--surface-border); }
.case-toc__title,
.case-toc__list a,
.case-section,
.response-item,
.arch-figure__head,
.arch-figure__caption,
.arch-legend,
.vrow,
.validation-table__meta,
.validation-table__rowhead,
.systems-table th,
.systems-table td,
.case-inline-media,
.case-inline-media figcaption,
.case-media-evidence figcaption,
.case-fast-proof figcaption { border-color: var(--surface-border); }
.case-section__body { color: var(--ink-2); }
.case-section__body p { line-height: 1.66; }
.callout {
  background: var(--paper-2);
  border-left-color: var(--redline);
  box-shadow: var(--surface-shadow-soft);
}
.callout--verbatim::before { background: var(--paper); color: var(--redline); }
.response-grid { border-top-color: var(--surface-border-strong); }
.validation-table { overflow: hidden; }
.validation-table__header,
.systems-table thead th {
  background: var(--paper-3);
  color: var(--ink);
  border-bottom: 1px solid var(--surface-border);
}
.validation-table__meta,
.validation-table__rowhead { background: var(--paper-3); }
.systems-table { border-color: var(--surface-border); }
.systems-table .stage { color: var(--redline); }
.outcome-card h4,
.response-item h4 { color: var(--ink); }
.takeaway {
  background: var(--paper-2);
  color: var(--ink);
  border: 1px solid var(--surface-border);
  box-shadow: var(--surface-shadow-soft);
}
.takeaway__label { color: var(--redline); }
.takeaway p { color: var(--ink); font-weight: 400; }
.arch-figure {
  background-image: none;
}
.arch-figure__sub,
.arch-figure__caption-body { color: var(--ink-2); }
.arch-legend__item { color: var(--ink-soft); }

.media-compare {
  border-color: var(--surface-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--surface-shadow-soft);
}
.media-compare__label--before { background: rgba(17,22,19,.84); }
.media-compare__label--after { background: rgba(11,107,88,.94); }
.media-compare__handle::after { color: var(--redline); box-shadow: 0 10px 28px rgba(17,22,19,.16); }
.case-fast-proof {
  background: transparent;
  border-color: var(--surface-border);
}

/* About, resume, contact */
.about-portrait { background: var(--paper-2); }
.about-portrait__caption {
  background: rgba(17,22,19,.9);
  color: #fff;
}
.about-story__col h3 { border-top-color: var(--surface-border-strong); }
.skill-card { border-color: var(--surface-border); }
.skill-card li { background: var(--paper-3); border-color: var(--surface-border); color: var(--ink-2); }
.resume-page__head,
.resume-main h2,
.resume-job,
.resume-side__block { border-color: var(--surface-border); }
.resume-main li,
.resume-job li { color: var(--ink-2); }
.resume-sidebar__block { border-color: var(--surface-border); }
.contact-form { border-color: var(--surface-border); background: var(--paper-2); }
.contact-form input,
.contact-form textarea,
.contact-form select,
.contact-form__field input,
.contact-form__field textarea {
  background: var(--paper-3);
  border-color: var(--surface-border-strong);
  color: var(--ink);
}
.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus,
.contact-form__field input:focus,
.contact-form__field textarea:focus {
  border-color: var(--redline);
  box-shadow: 0 0 0 3px rgba(11,107,88,.18);
  background: #fff;
}

/* Contact band and footer */
.contact-band {
  background: var(--paper-2);
  color: var(--ink);
  border-top: 1px solid var(--surface-border);
  border-bottom: 1px solid var(--surface-border);
}
.contact-band__eyebrow { color: var(--redline); }
.contact-band h2 { color: var(--ink); font-weight: 400; }
.contact-band__email { color: var(--redline); }
.contact-band__email:hover { color: var(--ink); }
.site-footer {
  background: var(--paper);
  border-top-color: var(--surface-border);
}
.site-footer__brand,
.site-footer__links a { color: var(--ink); }
.site-footer__brand p,
.site-footer__copy { color: var(--ink-soft); }
.site-footer__copy { border-top-color: var(--surface-border); text-transform: none; letter-spacing: .02em; }
.site-footer__links a { font-family: var(--font-body); letter-spacing: 0; font-weight: 600; }

/* Demo modal */
.demo-modal__panel {
  background: var(--paper-2);
  box-shadow: 0 30px 90px rgba(17,22,19,.28);
}
.demo-modal__head { border-bottom-color: var(--surface-border); }
.demo-modal__close { background: #fff; border-color: var(--surface-border); color: var(--ink); }

@media (min-width: 761px) {
  .hero h1,
  .page-hero h1,
  .case-hero h1 {
    font-weight: 400;
    letter-spacing: -.04em;
  }
  .section-head h2,
  .case-section h2,
  .contact-band h2 {
    font-weight: 400;
    letter-spacing: -.032em;
  }
}

@media (max-width: 760px) {
  :root {
    --paper: #F7F6F1;
    --paper-2: #FFFFFF;
    --paper-3: #FBFAF6;
    --ink: #111613;
    --ink-2: #34413B;
    --ink-soft: #56635D;
    --rule: rgba(17,22,19,.13);
    --rule-strong: rgba(17,22,19,.24);
  }
  .section { padding: clamp(2.5rem, 10vw, 3.75rem) 0; }
  .work-card { padding: 1rem; }
  .case-section__body p { line-height: 1.62; }
}

/* =====================================================================
   v528 · Homepage hero primary action buttons
   Align homepage action labels and button treatment with the clean/light
   design system across desktop, tablet, and mobile.
   ===================================================================== */
.hero__cta-row[aria-label="Primary portfolio actions"] {
  align-items: center;
}

.hero__cta-row[aria-label="Primary portfolio actions"] .btn {
  min-height: 58px;
  padding: 1rem 2rem;
  font-size: clamp(1rem, 1.05vw, 1.12rem);
  line-height: 1.1;
  justify-content: center;
  white-space: nowrap;
}

@media (min-width: 960px) {
  .hero__cta-row[aria-label="Primary portfolio actions"] {
    gap: clamp(1rem, 1.35vw, 1.5rem);
  }

  .hero__cta-row[aria-label="Primary portfolio actions"] .btn {
    flex: 0 0 auto;
    min-width: clamp(170px, 13vw, 220px);
  }
}

@media (max-width: 959px) and (min-width: 761px) {
  .hero__cta-row[aria-label="Primary portfolio actions"] .btn {
    flex: 1 1 190px;
  }
}

/* v528 correction · keep three homepage hero actions on one desktop row. */
@media (min-width: 1200px) {
  .hero__cta-row[aria-label="Primary portfolio actions"] {
    flex-wrap: nowrap;
    gap: .875rem;
  }

  .hero__cta-row[aria-label="Primary portfolio actions"] .btn {
    min-width: 0;
    padding-inline: clamp(1.15rem, 1.45vw, 1.45rem);
  }
}





/* Desktop QA — correct comparison semantics and non-cropping overlay assets */
.media-compare__after {
  width: 100%;
  clip-path: inset(0 0 0 var(--compare-position));
}
.media-compare__after .media-compare__image {
  width: 100%;
  max-width: 100%;
}
@media (min-width: 761px) {
  .work-index-card__media .media-compare,
  .work-card__media .media-compare {
    aspect-ratio: 16 / 9;
  }
  .work-index-card__media .media-compare__image,
  .work-card__media .media-compare__image,
  .case-hero__comparison .media-compare__image {
    object-fit: contain;
    object-position: center;
    background: #fff;
  }
}


/* Case-study name labels replacing numeric case codes */
.case-id,
.work-index-card__id,
.next-project__label {
  max-width: 100%;
  line-height: 1.25;
}

.work-index-card__id {
  letter-spacing: 0.045em;
  overflow-wrap: anywhere;
}

.next-project__label {
  overflow-wrap: anywhere;
}


/* Resume hero primary action and public-facing cleanup */
.page-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  margin-top: var(--s-5);
}
.page-hero__actions .btn {
  min-height: 54px;
  padding-inline: clamp(1.25rem, 2vw, 2rem);
  justify-content: center;
}
@media (max-width: 760px) {
  .page-hero__actions { width: 100%; }
  .page-hero__actions .btn { width: 100%; }
}

/* Comparison QA cleanup: keep both before and after assets visibly contained on each side of the divider. */
.media-compare > .media-compare__image {
  left: 0;
  width: var(--compare-position);
  max-width: none;
}
.media-compare__after {
  left: var(--compare-position);
  right: 0;
  width: auto;
  clip-path: none;
}
.media-compare__after picture {
  position: absolute;
  inset: 0;
  display: block;
  z-index: 1;
}
.media-compare__after .media-compare__image {
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  z-index: 1;
}