/* ────────────────────────────────────────────────────────────
   Perks-Bingham Consulting · stylesheet
   Editorial scientific-consultancy aesthetic.
   Type system:
     · Plantin MT Pro: body, prose, display headings
     · Bison: masthead/wordmark and big editorial titles
     · DM Mono: labels, dates, figure metadata
   ──────────────────────────────────────────────────────────── */

/* -- Web fonts -------------------------------------------- */
@font-face {
  font-family: 'Plantin MT Pro';
  src: url('assets/fonts/plantin/PlantinMTProLight.woff2') format('woff2');
  font-weight: 300; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Plantin MT Pro';
  src: url('assets/fonts/plantin/PlantinMTProLightIt.woff2') format('woff2');
  font-weight: 300; font-style: italic; font-display: swap;
}
@font-face {
  font-family: 'Plantin MT Pro';
  src: url('assets/fonts/plantin/PlantinMTProRg.woff2') format('woff2');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Plantin MT Pro';
  src: url('assets/fonts/plantin/PlantinMTProRgIt.woff2') format('woff2');
  font-weight: 400; font-style: italic; font-display: swap;
}
@font-face {
  font-family: 'Plantin MT Pro';
  src: url('assets/fonts/plantin/PlantinMTProSemiBdIt.woff2') format('woff2');
  font-weight: 600; font-style: italic; font-display: swap;
}
@font-face {
  font-family: 'Plantin MT Pro';
  src: url('assets/fonts/plantin/PlantinMTProBold.woff2') format('woff2');
  font-weight: 700; font-style: normal; font-display: swap;
}

@font-face {
  font-family: 'Bison';
  src: url('assets/fonts/bison/Bison-Regular.woff2') format('woff2');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Bison';
  src: url('assets/fonts/bison/Bison-DemiBold.woff2') format('woff2');
  font-weight: 600; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Bison';
  src: url('assets/fonts/bison/Bison-Bold.woff2') format('woff2');
  font-weight: 700; font-style: normal; font-display: swap;
}

@font-face {
  font-family: 'DM Mono';
  src: url('assets/fonts/dm-mono/DMMono-Regular.woff2') format('woff2');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'DM Mono';
  src: url('assets/fonts/dm-mono/DMMono-Medium.woff2') format('woff2');
  font-weight: 500; font-style: normal; font-display: swap;
}

/* -- Reset & root ----------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
img, svg { display: block; max-width: 100%; }
button { background: none; border: 0; font: inherit; cursor: pointer; color: inherit; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
address { font-style: normal; }
abbr[title] { text-decoration: none; border-bottom: 1px dotted currentColor; cursor: help; }

:root {
  /* Perks-Bingham brand palette
     Deep Teal #063D42 · Mid Teal #0D4C51 · Aqua #0AA69F
     Data Mist #C8DEDE · Off White #F7FBFB · Graph Grey #55888B */
  --ink:         #063D42;  /* Deep Teal */
  --ink-soft:    #0D4C51;  /* Mid Teal */
  --ink-muted:   #55888B;  /* Graph Grey */
  --paper:       #F7FBFB;  /* Off White */
  --paper-tint:  #EEF6F6;
  --paper-deep:  #DDEDED;
  --rule:        #C8DEDE;  /* Data Mist */
  --rule-faint:  #E3F0F0;
  --accent:      #0AA69F;  /* Aqua Accent */
  --accent-soft: #5BC4BD;

  --serif:   'Plantin MT Pro', 'Source Serif 4', Georgia, serif;
  --display: 'Bison', 'Plantin MT Pro', 'Source Serif 4', Georgia, serif;
  --sans:    'Plantin MT Pro', system-ui, sans-serif;
  --mono:    'DM Mono', ui-monospace, 'SF Mono', monospace;

  --fs-xxs: 0.75rem;
  --fs-xs:  0.825rem;
  --fs-sm:  0.9375rem;
  --fs-md:  1.0625rem;
  --fs-lg:  clamp(1.12rem, 0.95rem + 0.5vw, 1.3rem);
  --fs-xl:  clamp(1.4rem,  1.1rem + 1.0vw, 2rem);
  --fs-2xl: clamp(1.85rem, 1.2rem + 2.4vw, 3.25rem);
  --fs-3xl: clamp(2.6rem,  1.4rem + 5.8vw, 6rem);

  --gutter:  clamp(1.25rem, 3vw, 2.5rem);
  --maxw:    min(1280px, calc(100vw - var(--gutter) * 2));
  --section-pad: clamp(2.5rem, 5vw, 4.5rem);

  --ease-quart: cubic-bezier(0.22, 0.7, 0.32, 1);
  --ease-expo:  cubic-bezier(0.2, 0.85, 0.3, 1);
  --ease-smooth: cubic-bezier(0.32, 0.05, 0.22, 1);
  --dur-1: 280ms;
  --dur-2: 560ms;
  --dur-3: 900ms;
}

/* -- Intro loader ----------------------------------------
   Shows the wordmark on first paint, fades out into the
   page. Pure CSS so it works without JS. ~2s total.
*/
.loader {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--paper);
  display: grid;
  place-items: center;
  animation: loaderOut 900ms cubic-bezier(0.32, 0.05, 0.22, 1) 1100ms forwards;
  will-change: opacity;
}
.loader__inner {
  width: min(380px, 64vw);
  opacity: 0;
  transform: translateY(6px);
  animation: loaderIn 900ms cubic-bezier(0.22, 0.7, 0.32, 1) 80ms forwards;
}
.loader__inner img {
  width: 100%;
  height: auto;
  display: block;
}
@keyframes loaderIn {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes loaderOut {
  to { opacity: 0; visibility: hidden; }
}
@media (prefers-reduced-motion: reduce) {
  .loader { animation: loaderOut 200ms linear 200ms forwards; }
  .loader__inner { animation: none; opacity: 1; transform: none; }
}

/* -- Base -------------------------------------------------- */
html {
  scroll-padding-top: 124px;
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

.sep {
  display: inline-block;
  margin: 0 0.45em;
  color: var(--rule);
  font-weight: 300;
  vertical-align: baseline;
  user-select: none;
}
.section--dark .sep { color: color-mix(in oklch, var(--paper) 28%, transparent); }
.role__type .sep { margin: 0 0.4em 0 0.25em; color: var(--rule); }
.cert__issuer .sep { color: var(--rule); }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--fs-md);
  line-height: 1.55;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

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

/* -- Utility classes -------------------------------------- */
.sm-label {
  display: inline-block;
  font-family: var(--mono);
  font-size: var(--fs-xxs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 500;
}

.display {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.018em;
  line-height: 1.04;
  font-variation-settings: 'opsz' 144, 'SOFT' 50;
}

.display em {
  font-style: italic;
  font-variation-settings: 'opsz' 144, 'SOFT' 70;
  color: var(--ink-soft);
}

/* -- Header ----------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px) saturate(1.2);
  background: #FFFFFF;
  border-bottom: 1px solid transparent;
  transition:
    border-color var(--dur-2) var(--ease-quart),
    background   var(--dur-2) var(--ease-quart),
    padding-block var(--dur-2) var(--ease-quart);
}
.site-header.is-scrolled {
  border-color: var(--rule);
}
.site-header__inner {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 0.9rem var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  transition: padding var(--dur-2) var(--ease-quart);
}
.site-header.is-scrolled .site-header__inner { padding-block: 0.6rem; }
.site-header__mark {
  display: inline-flex;
  align-items: center;
  transition: opacity var(--dur-1) var(--ease-smooth);
}
.site-header__mark:hover { opacity: 0.75; }
.site-header__mark img {
  width: auto;
  transition: height var(--dur-2) var(--ease-quart);
}
.site-header__mark-wide  { height: 72px; display: block; }
.site-header__mark-compact { height: 56px; display: none; }
.site-header.is-scrolled .site-header__mark-wide { height: 56px; }
@media (max-width: 720px) {
  .site-header__mark-wide  { display: none; }
  .site-header__mark-compact { display: block; height: 48px; }
  .site-header.is-scrolled .site-header__mark-compact { height: 40px; }
}

.site-header__nav {
  display: flex;
  gap: clamp(1rem, 2.5vw, 2.25rem);
  align-items: center;
  font-size: var(--fs-sm);
}
.site-header__nav a {
  font-family: var(--sans);
  font-weight: 450;
  letter-spacing: 0.01em;
  color: var(--ink-soft);
  position: relative;
  padding: 0.35rem 0.1rem;
  transition: color var(--dur-1) var(--ease-smooth);
}
.site-header__nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0.1rem;
  height: 1px;
  background: var(--ink);
  transition: right var(--dur-2) var(--ease-quart);
}
.site-header__nav a:hover,
.site-header__nav a:focus-visible { color: var(--ink); }
.site-header__nav a:hover::after,
.site-header__nav a:focus-visible::after { right: 0; }

.site-header__cta {
  padding: 0.55rem 1rem !important;
  border: 1px solid var(--ink);
  border-radius: 999px;
  color: var(--ink) !important;
  font-weight: 500;
  transition:
    background var(--dur-2) var(--ease-quart),
    color      var(--dur-2) var(--ease-quart),
    transform  var(--dur-2) var(--ease-quart);
}
.site-header__cta::after { display: none !important; }
.site-header__cta:hover {
  background: var(--ink);
  color: var(--paper) !important;
  transform: translateY(-1px);
}

/* Hamburger toggle (hidden on desktop) */
.site-header__toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: pointer;
  position: relative;
  z-index: 60;
  margin-left: auto;
}
.site-header__toggle-bar {
  position: absolute;
  left: 50%;
  width: 22px;
  height: 1.5px;
  background: var(--ink);
  transform: translateX(-50%);
  border-radius: 1px;
  transition:
    transform var(--dur-2) var(--ease-smooth),
    opacity var(--dur-1) var(--ease-smooth),
    top var(--dur-2) var(--ease-smooth);
}
.site-header__toggle-bar:nth-child(1) { top: calc(50% - 6px); }
.site-header__toggle-bar:nth-child(2) { top: 50%; }
.site-header__toggle-bar:nth-child(3) { top: calc(50% + 6px); }
.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(1) {
  top: 50%; transform: translateX(-50%) rotate(45deg);
}
.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(2) { opacity: 0; }
.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(3) {
  top: 50%; transform: translateX(-50%) rotate(-45deg);
}

@media (max-width: 720px) {
  .site-header__toggle { display: block; }

  .site-header__nav {
    position: fixed;
    inset: 0;
    background: var(--paper);
    flex-direction: column;
    justify-content: center;
    align-items: stretch;
    gap: 0;
    padding: 5rem var(--gutter) 3rem;
    z-index: 50;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition:
      opacity var(--dur-2) var(--ease-smooth),
      transform var(--dur-2) var(--ease-smooth),
      visibility 0s linear var(--dur-2);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .site-header__nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition:
      opacity var(--dur-2) var(--ease-smooth),
      transform var(--dur-2) var(--ease-smooth),
      visibility 0s;
  }
  .site-header__nav a {
    font-family: var(--serif);
    font-size: clamp(1.4rem, 1rem + 2vw, 1.9rem);
    font-variation-settings: 'opsz' 24, 'SOFT' 60;
    color: var(--ink);
    padding: 0.95rem 0.25rem;
    border-bottom: 1px solid var(--rule-faint);
    text-align: left;
    letter-spacing: -0.005em;
  }
  .site-header__nav a::after { display: none; }
  .site-header__nav a.site-header__cta {
    display: inline-flex;
    align-self: flex-start;
    margin-top: 1.25rem;
    padding: 0.7rem 1.5rem !important;
    border-bottom: 1px solid var(--ink);
    font-family: var(--sans);
    font-size: var(--fs-md);
  }
  body.menu-open { overflow: hidden; }
}

/* -- Hero -------------------------------------------------- */
.hero {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(0.5rem, 1.2vw, 1rem) var(--gutter) clamp(1.5rem, 3vw, 3rem);
  position: relative;
}
.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.8rem;
  align-items: center;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 0.8rem 0;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}
.tick {
  font-family: var(--mono);
  font-size: var(--fs-xxs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
  position: relative;
}
.tick.tick--dot::before {
  content: "";
  display: inline-block;
  width: 5px; height: 5px;
  border-radius: 999px;
  background: var(--accent);
  margin-right: 0.6rem;
  transform: translateY(-1px);
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; align-items: start; }
}

.hero__headline h1 {
  font-family: var(--serif);
  font-size: var(--fs-3xl);
  line-height: 0.98;
  font-weight: 400;
  letter-spacing: -0.022em;
  font-variation-settings: 'opsz' 144, 'SOFT' 40;
  color: var(--ink);
  max-width: 14ch;
}
.hero__headline h1 .line {
  display: block;
  opacity: 0;
  transform: translateY(1.2em);
  animation: rise 900ms var(--ease-expo) forwards;
  will-change: transform, opacity;
}
.hero__headline h1 .line:nth-child(2) { animation-delay: 140ms; }
.hero__headline h1 .line:nth-child(3) { animation-delay: 260ms; }
.hero__headline h1 .line--italic {
  font-style: italic;
  color: var(--ink-soft);
  font-variation-settings: 'opsz' 144, 'SOFT' 80;
}

@keyframes rise {
  to { opacity: 1; transform: translateY(0); }
}

.hero__lede {
  margin-top: clamp(1.25rem, 2.5vw, 1.75rem);
  max-width: 52ch;
  font-size: var(--fs-lg);
  line-height: 1.55;
  color: var(--ink-soft);
  font-weight: 300;
  opacity: 0;
  animation: fadeUp 800ms var(--ease-quart) 460ms forwards;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Hero side nav: replaces the figure/caption with the section directory */
.hero__aside {
  position: relative;
  padding: 0;
}
.hero__aside--nav {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  opacity: 0;
  animation: fadeUp 800ms var(--ease-quart) 460ms forwards;
}
.hero__nav-label {
  margin: 0;
}
.hero-nav {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--rule);
}
.hero-nav li {
  border-bottom: 1px solid var(--rule);
}
.hero-nav a {
  display: grid;
  grid-template-columns: 3.25rem 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0.25rem;
  color: var(--ink);
  font-family: var(--serif);
  font-size: var(--fs-lg);
  font-variation-settings: 'opsz' 18, 'wght' 460;
  letter-spacing: -0.005em;
  transition:
    padding-left var(--dur-2) var(--ease-quart),
    background   var(--dur-2) var(--ease-quart),
    color        var(--dur-2) var(--ease-quart);
  position: relative;
}
.hero-nav a::after {
  content: "→";
  font-family: var(--sans);
  font-size: var(--fs-md);
  color: var(--accent);
  opacity: 0;
  transform: translateX(-4px);
  transition:
    opacity   var(--dur-2) var(--ease-quart),
    transform var(--dur-2) var(--ease-quart);
}
.hero-nav a:hover,
.hero-nav a:focus-visible {
  padding-left: 0.85rem;
  background: var(--paper-tint);
}
.hero-nav a:hover::after,
.hero-nav a:focus-visible::after {
  opacity: 1;
  transform: translateX(0);
}
.hero-nav__num {
  font-family: var(--mono);
  font-size: var(--fs-xxs);
  letter-spacing: 0.18em;
  color: var(--accent);
  font-weight: 500;
  text-transform: uppercase;
}
.hero-nav__label { font-size: var(--fs-lg); }
.hero-nav a.hero-nav__cta {
  background: var(--ink);
  color: var(--paper);
  padding-left: 0.85rem;
}
.hero-nav a.hero-nav__cta .hero-nav__num { color: var(--accent-soft); }
.hero-nav a.hero-nav__cta::after { color: var(--accent-soft); opacity: 1; transform: translateX(0); padding-right: 0.5rem; }
.hero-nav a.hero-nav__cta:hover,
.hero-nav a.hero-nav__cta:focus-visible {
  background: color-mix(in srgb, var(--ink) 80%, var(--accent));
  color: var(--paper);
  padding-left: 1.25rem;
}

@media (max-width: 920px) {
  .hero-nav a { grid-template-columns: 2.75rem 1fr auto; padding: 0.85rem 0.25rem; }
  .hero-nav__label { font-size: var(--fs-md); }
}

/* Trust strip: static row of engagements, eyebrow label on the left */
.hero__strip {
  margin-top: clamp(2.25rem, 4vw, 3.5rem);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: clamp(0.95rem, 1.6vw, 1.2rem) 0;
  display: grid;
  grid-template-columns: minmax(8.5rem, max-content) 1fr;
  gap: clamp(1.2rem, 3vw, 2.6rem);
  align-items: baseline;
}
.hero__strip-label {
  font-family: var(--mono);
  font-size: var(--fs-xxs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 500;
  margin: 0;
  white-space: nowrap;
}
.hero__strip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.4rem;
  font-family: var(--serif);
  font-size: var(--fs-sm);
  font-variation-settings: 'opsz' 14, 'wght' 460;
  color: var(--ink);
}
.hero__strip-list li { position: relative; }
.hero__strip-list li + li::before {
  content: "|";
  color: var(--rule);
  font-weight: 300;
  margin-right: 1.4rem;
  margin-left: -1.4rem;
  position: relative;
  top: -0.05em;
}
@media (max-width: 40rem) {
  .hero__strip { grid-template-columns: 1fr; gap: 0.6rem; }
}
@media (prefers-reduced-motion: reduce) {
  .hero__headline h1 .line,
  .hero__lede,
  .hero__aside--nav { animation: none; opacity: 1; transform: none; }
}

/* -- Section chrome --------------------------------------- */
.section {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: var(--section-pad) var(--gutter);
  position: relative;
}
.section + .section {
  border-top: 1px solid var(--rule);
}

/* Full-bleed dark section wrapper (Principal, Enquire) */
.section--dark {
  background: var(--ink);
  color: var(--paper);
  max-width: none !important;
  padding-inline: 0;
  border-top: 0 !important;
  position: relative;
  overflow: hidden;
}
.section--dark::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1.2px 1.2px at 12% 22%, color-mix(in oklch, var(--paper) 22%, transparent), transparent 50%),
    radial-gradient(1.5px 1.5px at 72% 38%, color-mix(in oklch, var(--paper) 18%, transparent), transparent 60%),
    radial-gradient(1.2px 1.2px at 88% 78%, var(--accent), transparent 55%),
    radial-gradient(1.2px 1.2px at 28% 82%, color-mix(in oklch, var(--paper) 25%, transparent), transparent 55%),
    radial-gradient(1px 1px at 55% 14%, var(--accent), transparent 60%);
  opacity: 0.7;
  pointer-events: none;
  animation: drift 28s ease-in-out infinite alternate;
}
.section--dark + .section { border-top: 0; }
.section + .section--dark { border-top: 0; }
.section__head {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: clamp(1.5rem, 2.5vw, 2.25rem);
}
.section__title {
  margin-top: clamp(0.7rem, 1.4vw, 1rem);
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(2.2rem, 1.4rem + 3vw, 4.2rem);
  line-height: 0.96;
  letter-spacing: -0.005em;
  max-width: 22ch;
  font-variation-settings: normal;
}
.section__title em { font-style: italic; }

/* -- Principal / About (dark) ----------------------------- */
.principal__inner {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(3rem, 6vw, 5rem) var(--gutter);
  position: relative;
  z-index: 1;
}
.principal .section__head .sm-label { color: color-mix(in oklch, var(--paper) 65%, transparent); }

.principal__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.5fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}
@media (max-width: 900px) {
  .principal__grid { grid-template-columns: 1fr; }
}

.portrait-frame {
  position: relative;
  aspect-ratio: 4/5;
  background: color-mix(in oklch, var(--paper) 6%, var(--ink));
  border: 1px solid color-mix(in oklch, var(--paper) 18%, transparent);
  overflow: hidden;
  box-shadow:
    0 1px 0 0 color-mix(in oklch, var(--paper) 10%, transparent),
    0 18px 50px -12px rgba(0,0,0,0.45);
  transition:
    transform var(--dur-3) var(--ease-quart),
    box-shadow var(--dur-3) var(--ease-quart);
}
.portrait-frame:hover {
  transform: translateY(-2px);
  box-shadow:
    0 2px 0 0 var(--rule-faint),
    0 16px 48px -10px color-mix(in oklch, var(--ink) 12%, transparent);
}
.portrait-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: saturate(0.92);
  transition: transform 1200ms var(--ease-quart), filter var(--dur-3) var(--ease-quart);
}
.portrait-frame:hover img {
  transform: scale(1.03);
  filter: saturate(1);
}

.principal__body h2 {
  font-size: var(--fs-2xl);
  margin-bottom: 0.5rem;
  color: var(--paper);
}
.principal__body .display em {
  color: color-mix(in oklch, var(--paper) 75%, transparent);
}
.principal__role {
  font-family: var(--mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  color: var(--accent-soft);
  margin-bottom: 1.5rem;
  line-height: 1.5;
}
.principal .rich p {
  max-width: 62ch;
  margin-bottom: 1rem;
  font-size: var(--fs-md);
  line-height: 1.65;
  color: color-mix(in oklch, var(--paper) 82%, transparent);
  font-weight: 350;
}
.principal .rich p:last-child { margin-bottom: 0; }
.principal .rich abbr {
  border-bottom-color: color-mix(in oklch, var(--paper) 45%, transparent);
}

.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: color-mix(in oklch, var(--paper) 18%, transparent);
  margin-top: 2rem;
  border: 1px solid color-mix(in oklch, var(--paper) 18%, transparent);
}
.facts > div {
  padding: 0.9rem 1.1rem;
  background: var(--ink);
  transition: background var(--dur-2) var(--ease-smooth);
}
.facts > div:hover {
  background: color-mix(in oklch, var(--paper) 6%, var(--ink));
}
.facts dt {
  font-family: var(--mono);
  font-size: var(--fs-xxs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: color-mix(in oklch, var(--paper) 55%, transparent);
  margin-bottom: 0.3rem;
}
.facts dd {
  font-family: var(--serif);
  font-size: var(--fs-md);
  font-weight: 400;
  color: var(--paper);
  font-variation-settings: 'opsz' 14;
}

/* -- Practice areas --------------------------------------- */
.practice__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}
@media (max-width: 760px) {
  .practice__list { grid-template-columns: 1fr; }
}
.practice-item {
  padding: clamp(1.5rem, 2.5vw, 2.25rem);
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  position: relative;
  transition:
    background var(--dur-2) var(--ease-quart),
    transform  var(--dur-2) var(--ease-quart);
}
.practice-item::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    600px circle at var(--mx, 50%) var(--my, 50%),
    color-mix(in oklch, var(--accent) 6%, transparent),
    transparent 55%
  );
  opacity: 0;
  transition: opacity var(--dur-3) var(--ease-quart);
  pointer-events: none;
}
.practice-item:hover { background: var(--paper-tint); }
.practice-item:hover::before { opacity: 1; }
.practice-item > * { position: relative; }

.practice-item__num {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(2.4rem, 1.6rem + 2.4vw, 3.6rem);
  line-height: 0.9;
  letter-spacing: 0;
  color: var(--accent);
  display: inline-block;
  margin-bottom: 0.8rem;
}
.practice-item h3 {
  font-family: var(--serif);
  font-size: var(--fs-xl);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: 0.6rem;
  font-variation-settings: 'opsz' 40, 'SOFT' 50;
  transition: color var(--dur-2) var(--ease-smooth);
}
.practice-item:hover h3 { color: var(--accent); }
.practice-item p {
  max-width: 46ch;
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: var(--ink-soft);
  font-weight: 350;
}

/* -- Experience (record) · dense list -------------------- */
.record-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--rule);
}
.record-row {
  display: grid;
  grid-template-columns: 170px minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 1.5rem;
  padding: 1rem 0.5rem;
  border-bottom: 1px solid var(--rule-faint);
  align-items: baseline;
  transition: background var(--dur-2) var(--ease-smooth);
}
.record-row:hover {
  background: color-mix(in oklch, var(--paper-tint) 70%, transparent);
}
.record-row--featured {
  background: color-mix(in oklch, var(--accent) 4%, transparent);
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
}
.record-row--featured:hover {
  background: color-mix(in oklch, var(--accent) 7%, transparent);
}
@media (max-width: 760px) {
  .record-row { grid-template-columns: 1fr; gap: 0.4rem; padding: 1rem 0.5rem; }
}
.record-row__date {
  font-family: var(--mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.record-row__body {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}
.record-row__title {
  font-family: var(--serif);
  font-size: clamp(1.05rem, 0.95rem + 0.3vw, 1.2rem);
  font-weight: 400;
  line-height: 1.22;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin: 0;
  font-variation-settings: 'opsz' 18, 'SOFT' 60;
}
.record-row__org {
  font-family: var(--sans);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--accent);
  margin: 0;
  letter-spacing: 0.01em;
}
.record-row__desc {
  font-family: var(--serif);
  font-size: var(--fs-sm);
  color: var(--ink-soft);
  line-height: 1.55;
  font-weight: 350;
  margin: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition:
    max-height var(--dur-3) var(--ease-smooth),
    opacity var(--dur-3) var(--ease-smooth) 80ms,
    margin-top var(--dur-3) var(--ease-smooth);
}
.record-row:hover .record-row__desc,
.record-row--featured .record-row__desc {
  max-height: 240px;
  opacity: 1;
  margin-top: 0.5rem;
}
.record-row__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem 0;
  margin: 0;
  list-style: none;
  align-self: center;
}
.record-row__tags li {
  position: relative;
  font-family: var(--mono);
  font-size: var(--fs-xxs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  padding-right: 0.95rem;
  margin-right: 0.15rem;
}
.record-row__tags li:not(:last-child)::after {
  content: '|';
  position: absolute;
  right: 0.3rem;
  top: 50%;
  transform: translateY(-55%);
  color: var(--rule);
  font-weight: 300;
  line-height: 1;
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem 0;
  margin-top: 1rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--rule-faint);
  list-style: none;
}
.chips li {
  position: relative;
  font-family: var(--mono);
  font-size: var(--fs-xxs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  padding-right: 0.95rem;
  margin-right: 0.15rem;
}
.chips li:not(:last-child)::after {
  content: '|';
  position: absolute;
  right: 0.3rem;
  color: var(--rule);
  font-weight: 300;
  top: 50%;
  transform: translateY(-50%);
  line-height: 1;
}

/* -- Skills ----------------------------------------------- */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(2rem, 4vw, 3.5rem);
  border-top: 1px solid var(--rule);
  padding-top: clamp(2rem, 3.5vw, 2.75rem);
}
@media (max-width: 900px) {
  .skills__grid { grid-template-columns: 1fr; gap: 2.25rem; }
}
.skills__col {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding-left: 1rem;
  border-left: 2px solid var(--accent);
}
.skills__tag {
  font-family: var(--mono);
  font-size: var(--fs-xxs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0;
}
.skills__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.skills__list li {
  font-family: var(--serif);
  font-size: clamp(1.05rem, 0.95rem + 0.35vw, 1.3rem);
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: -0.005em;
  color: var(--ink);
  font-variation-settings: 'opsz' 18, 'SOFT' 60;
}
.skills__list--mono li {
  font-family: var(--mono);
  font-size: clamp(1.1rem, 0.95rem + 0.45vw, 1.45rem);
  letter-spacing: 0.02em;
  color: var(--ink);
}
.skills__also {
  margin: 0;
  font-family: var(--sans);
  font-size: var(--fs-xs);
  line-height: 1.7;
  color: var(--ink-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0;
  border-top: 1px solid var(--rule-faint);
  padding-top: 1rem;
}
.skills__also span {
  position: relative;
  padding-right: 0.85rem;
  margin-right: 0.25rem;
}
.skills__also span:not(:last-child)::after {
  content: '|';
  position: absolute;
  right: 0.2rem;
  color: var(--rule);
  font-weight: 300;
  top: 50%;
  transform: translateY(-55%);
  line-height: 1;
}

/* -- Credentials ------------------------------------------ */
.credentials__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 4vw, 3.5rem);
  border-top: 1px solid var(--rule);
  padding-top: clamp(1.75rem, 3vw, 2.5rem);
}
@media (max-width: 900px) {
  .credentials__grid { grid-template-columns: 1fr; }
}
.credentials__heading {
  font-family: var(--serif);
  font-size: var(--fs-xl);
  font-weight: 400;
  letter-spacing: -0.01em;
  margin-bottom: 1.25rem;
  font-variation-settings: 'opsz' 40, 'SOFT' 50;
}

.credential-list li {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--rule-faint);
  transition: padding-left var(--dur-2) var(--ease-smooth);
}
.credential-list li:first-child { border-top: 0; padding-top: 0; }
.credential-list li:hover { padding-left: 0.4rem; }
.credential__inst {
  font-family: var(--sans);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 0.15rem;
}
.credential__degree {
  font-family: var(--serif);
  font-size: var(--fs-md);
  font-weight: 400;
  font-variation-settings: 'opsz' 14;
}
.credential__note {
  font-size: var(--fs-sm);
  color: var(--ink-muted);
  margin-top: 0.3rem;
  line-height: 1.55;
  font-weight: 350;
}

.cert-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--rule-faint);
}
.cert-list li {
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--rule-faint);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  transition: padding-left var(--dur-2) var(--ease-smooth);
}
.cert-list li:hover { padding-left: 0.4rem; }
.cert__name {
  font-family: var(--serif);
  font-size: var(--fs-md);
  font-weight: 400;
  font-variation-settings: 'opsz' 14;
}
.cert__issuer {
  font-family: var(--mono);
  font-size: var(--fs-xs);
  color: var(--ink-muted);
  letter-spacing: 0.04em;
}
.cert__issuer span { color: var(--accent); margin-left: 0.25rem; }

.volunteering {
  margin-top: 1.5rem;
  padding: 1rem 1.15rem;
  background: var(--paper-tint);
  border: 1px solid var(--rule);
}
.volunteering h4 { margin-bottom: 0.5rem; }
.volunteering p { font-size: var(--fs-sm); color: var(--ink-soft); line-height: 1.6; }

/* -- Enquire ---------------------------------------------- */
/* (uses .section--dark base) */
@keyframes drift {
  to { transform: translate3d(-10px, 6px, 0) scale(1.02); }
}
@media (prefers-reduced-motion: reduce) {
  .section--dark::before { animation: none; }
}
.enquire__inner {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(3rem, 6vw, 5rem) var(--gutter);
  position: relative;
  z-index: 1;
}
.enquire .sm-label { color: color-mix(in oklch, var(--paper) 65%, transparent); }
.enquire__title {
  font-size: var(--fs-2xl);
  color: var(--paper);
  max-width: 18ch;
  margin: 0.9rem 0 clamp(2rem, 3.5vw, 3rem);
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.05;
}
.enquire__title span { display: block; }
.enquire__title .italic {
  font-style: italic;
  color: color-mix(in oklch, var(--paper) 75%, transparent);
  font-variation-settings: 'opsz' 144, 'SOFT' 90;
}

.enquire__form {
  margin-bottom: clamp(2.5rem, 4.5vw, 3.5rem);
  padding-bottom: clamp(2rem, 4vw, 3rem);
  border-bottom: 1px solid color-mix(in oklch, var(--paper) 20%, transparent);
}
.enquire__form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1rem, 2vw, 1.5rem) clamp(1rem, 2.5vw, 2rem);
}
@media (max-width: 720px) {
  .enquire__form-grid { grid-template-columns: 1fr; }
}
.enquire__hp {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}
.field { display: flex; flex-direction: column; gap: 0.45rem; }
.field--full { grid-column: 1 / -1; }
.field label { color: color-mix(in oklch, var(--paper) 70%, transparent); }
.field__opt {
  font-family: var(--mono);
  font-size: var(--fs-xxs);
  letter-spacing: 0.06em;
  color: color-mix(in oklch, var(--paper) 45%, transparent);
  text-transform: lowercase;
  margin-left: 0.4rem;
}
.field input,
.field select,
.field textarea {
  font-family: var(--sans);
  font-size: max(16px, var(--fs-md));
  color: var(--paper);
  background: color-mix(in oklch, var(--paper) 6%, transparent);
  border: 1px solid color-mix(in oklch, var(--paper) 22%, transparent);
  border-radius: 2px;
  padding: 0.85rem 0.95rem;
  width: 100%;
  min-height: 48px;
  transition:
    border-color var(--dur-2) var(--ease-smooth),
    background var(--dur-2) var(--ease-smooth);
}
.field textarea { resize: vertical; min-height: 7rem; line-height: 1.5; }
.field input::placeholder,
.field textarea::placeholder {
  color: color-mix(in oklch, var(--paper) 40%, transparent);
}
.field select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, currentColor 50%),
                    linear-gradient(135deg, currentColor 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 12px) 50%;
  background-size: 6px 6px;
  background-repeat: no-repeat;
  padding-right: 2.25rem;
  cursor: pointer;
}
.field select option { color: var(--ink); background: var(--paper); }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent-soft);
  background: color-mix(in oklch, var(--paper) 10%, transparent);
}
.field input:invalid:not(:placeholder-shown),
.field textarea:invalid:not(:placeholder-shown) {
  border-color: color-mix(in oklch, #d97070 70%, var(--paper) 30%);
}

.enquire__form-foot {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-top: clamp(1.25rem, 2.5vw, 1.75rem);
  flex-wrap: wrap;
}
.enquire__submit {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--paper);
  padding: 0.85rem 1.25rem;
  border-radius: 999px;
  cursor: pointer;
  transition:
    background var(--dur-2) var(--ease-quart),
    color var(--dur-2) var(--ease-quart),
    transform var(--dur-2) var(--ease-quart);
}
.enquire__submit:hover {
  background: var(--accent-soft);
  border-color: var(--accent-soft);
  color: var(--ink);
}
.enquire__submit:active { transform: translateY(1px); }
.enquire__submit[disabled] {
  opacity: 0.55;
  cursor: progress;
}
.enquire__form-status {
  font-family: var(--mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.04em;
  color: color-mix(in oklch, var(--paper) 75%, transparent);
  margin: 0;
  min-height: 1.2em;
}
.enquire__form-status[data-state="ok"] { color: var(--accent-soft); }
.enquire__form-status[data-state="err"] { color: #f3a3a3; }

.enquire__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: clamp(1.75rem, 3.5vw, 3rem);
  border-top: 1px solid color-mix(in oklch, var(--paper) 20%, transparent);
  padding-top: clamp(1.5rem, 2.5vw, 2rem);
}
@media (max-width: 820px) {
  .enquire__grid { grid-template-columns: 1fr; }
}

.big-link {
  display: inline-block;
  max-width: 100%;
  margin-top: 0.65rem;
  font-family: var(--serif);
  font-size: clamp(1.05rem, 0.85rem + 0.85vw, 1.5rem);
  font-variation-settings: 'opsz' 24, 'SOFT' 60;
  color: var(--paper);
  letter-spacing: -0.005em;
  border-bottom: 1px solid color-mix(in oklch, var(--paper) 25%, transparent);
  padding-bottom: 0.2rem;
  transition:
    border-color var(--dur-2) var(--ease-quart),
    color var(--dur-2) var(--ease-quart);
  overflow-wrap: anywhere;
  line-height: 1.25;
}
.big-link:hover {
  border-color: var(--accent-soft);
  color: var(--accent-soft);
}

.enquire address, .enquire .linklist {
  margin-top: 0.65rem;
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: color-mix(in oklch, var(--paper) 78%, transparent);
}
.linklist li { padding: 0.2rem 0; }
.linklist a {
  display: inline-flex;
  gap: 0.35rem;
  align-items: center;
  border-bottom: 1px solid color-mix(in oklch, var(--paper) 20%, transparent);
  padding-bottom: 1px;
  transition:
    color var(--dur-2) var(--ease-smooth),
    border-color var(--dur-2) var(--ease-smooth),
    gap var(--dur-2) var(--ease-quart);
}
.linklist a:hover {
  color: var(--accent-soft);
  border-color: var(--accent-soft);
  gap: 0.55rem;
}

/* -- Footer ----------------------------------------------- */
.site-footer {
  background: var(--paper-tint);
  border-top: 1px solid var(--rule);
  font-size: var(--fs-sm);
  color: var(--ink-soft);
}
.site-footer__inner {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(2.25rem, 4vw, 3.25rem) var(--gutter);
  display: grid;
  grid-template-columns: 180px 2fr 1fr;
  gap: clamp(1.75rem, 4vw, 3.5rem);
  align-items: start;
}
@media (max-width: 900px) {
  .site-footer__inner { grid-template-columns: 1fr 1fr; gap: 1.5rem; }
}
@media (max-width: 640px) {
  .site-footer__inner { grid-template-columns: 1fr; gap: 1.5rem; }
  .site-footer__mark img { height: 80px; }
}
.site-footer__baseline {
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
}
.site-footer__mark img { height: 120px; width: auto; }
.site-footer__col p + p { margin-top: 0.6rem; }
.site-footer__col .sm-label { margin-bottom: 0.6rem; }
.site-footer__col ul li { padding: 0.12rem 0; }
.site-footer__col ul a {
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-2) var(--ease-quart);
}
.site-footer__col ul a:hover { border-color: var(--ink); }

.site-footer__baseline {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 1rem var(--gutter);
  border-top: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-family: var(--mono);
  font-size: var(--fs-xxs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

/* -- Scroll reveals ---------------------------------------
   Progressive-enhancement only: elements are visible by default.
*/
.js [data-reveal] {
  opacity: 0;
  transform: translateY(8px);
  transition:
    opacity 1000ms var(--ease-smooth),
    transform 1000ms var(--ease-smooth);
  will-change: opacity, transform;
}
.js [data-reveal].is-in {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .js [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* Staggered reveal for grids */
.js [data-reveal-stagger] > * {
  opacity: 0;
  transform: translateY(8px);
  transition:
    opacity 950ms var(--ease-smooth),
    transform 950ms var(--ease-smooth);
}
.js [data-reveal-stagger].is-in > * {
  opacity: 1;
  transform: translateY(0);
}
.js [data-reveal-stagger].is-in > *:nth-child(1) { transition-delay: 0ms; }
.js [data-reveal-stagger].is-in > *:nth-child(2) { transition-delay: 90ms; }
.js [data-reveal-stagger].is-in > *:nth-child(3) { transition-delay: 180ms; }
.js [data-reveal-stagger].is-in > *:nth-child(4) { transition-delay: 270ms; }
.js [data-reveal-stagger].is-in > *:nth-child(5) { transition-delay: 360ms; }
.js [data-reveal-stagger].is-in > *:nth-child(6) { transition-delay: 450ms; }
.js [data-reveal-stagger].is-in > *:nth-child(7) { transition-delay: 540ms; }

/* -- Print ------------------------------------------------ */
@media print {
  .site-header, .hero__strip, .enquire, .site-footer { display: none; }
  body { background: white; color: black; }
}