/* Ferric Advisory: site styles
   Tokens first; change colours and type here. */

@font-face { font-family: "Newsreader"; src: url("../fonts/newsreader-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Newsreader"; src: url("../fonts/newsreader-latin-400-italic.woff2") format("woff2"); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: "Newsreader"; src: url("../fonts/newsreader-latin-500-normal.woff2") format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: "Public Sans"; src: url("../fonts/public-sans-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Public Sans"; src: url("../fonts/public-sans-latin-500-normal.woff2") format("woff2"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Public Sans"; src: url("../fonts/public-sans-latin-600-normal.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("../fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("../fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2"); font-weight: 500; font-display: swap; }

:root {
  --paper: #F4F2ED;
  --tint: #E3E6E4;          /* very light zinc */
  --zinc: #C8CCCA;
  --ink: #172221;            /* carbon */
  --ink-2: #34403F;
  --muted: #56615F;
  --rule: #C8CCCA;
  --field: #76807E;
  --accent: #A8442F;         /* iron oxide */
  --accent-deep: #7D3022;    /* oxide dark */
  --dark: #082F32;           /* deep petrol */
  --dark-2: #0B4548;         /* petrol */
  --amber: #E3B866;          /* amber detail, dark grounds only */
  --oxide-on-dark: #E0826B;  /* iron oxide lifted for text on petrol */
  --on-dark: #ECE9E2;
  --on-dark-muted: #A9B0AE;
  --focus: #0B4548;
  --error: #A3261B;

  --serif: "Newsreader", "Iowan Old Style", Georgia, serif;
  --sans: "Public Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;

  --wrap: 1200px;
  --gutter: clamp(20px, 5vw, 48px);
  --space: clamp(64px, 9vw, 120px);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
img, video, svg { display: block; max-width: 100%; }
h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: var(--accent); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { color: var(--accent-deep); text-decoration-thickness: 2px; }
code { font-family: var(--mono); }
main:focus { outline: none; }

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

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 100;
  background: var(--ink); color: #fff; padding: 10px 16px; font-weight: 600;
}
.skip-link:focus { top: 12px; color: #fff; }

.wrap { width: 100%; max-width: calc(var(--wrap) + var(--gutter) * 2); margin-inline: auto; padding-inline: var(--gutter); }

/* Type helpers */
.label {
  font-family: var(--mono); font-size: 0.75rem; font-weight: 500;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent);
  margin-bottom: 1rem; line-height: 1.4;
}
.h2 {
  font-family: var(--serif); font-weight: 400; font-size: clamp(1.9rem, 3.4vw, 2.75rem);
  line-height: 1.12; letter-spacing: -0.01em; max-width: 18ch;
}
.h2--sm { font-size: clamp(1.6rem, 2.6vw, 2.1rem); }
.muted { color: var(--muted); }
.small { font-size: 0.9rem; }
.prose > * + * { margin-top: 1.1em; }
.prose h3 { font-family: var(--serif); font-weight: 500; font-size: 1.3rem; line-height: 1.3; margin-top: 1.8em; }
.prose h3:first-child { margin-top: 0; }
.prose--lead p:first-child { font-size: 1.2rem; line-height: 1.6; }
.prose--doc { max-width: 72ch; }
.prose--doc h2 { font-family: var(--serif); font-weight: 500; font-size: 1.5rem; margin-top: 2em; }
.prose--doc h2:first-child { margin-top: 0; }
.plain li + li { margin-top: 0.35em; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5em;
  min-height: 48px; padding: 0.75em 1.4em;
  font-family: var(--sans); font-size: 0.95rem; font-weight: 600; letter-spacing: 0.01em;
  text-decoration: none; border: 1px solid transparent; border-radius: 0; cursor: pointer;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease;
}
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: var(--accent-deep); color: #fff; }
.btn--ghost { border-color: var(--on-dark-muted); color: var(--on-dark); }
.btn--ghost:hover { border-color: var(--on-dark); color: #fff; }
.btn--light { background: var(--on-dark); color: var(--ink); }
.btn--light:hover { background: #fff; color: var(--ink); }
.btn--outline-light { border-color: rgba(236,233,226,.7); color: var(--on-dark); }
.btn--outline-light:hover { border-color: #fff; color: #fff; background: rgba(255,255,255,.08); }
.link-arrow { font-weight: 600; text-decoration: none; white-space: nowrap; }
.link-arrow::after { content: " \2192"; }
.link-arrow:hover { text-decoration: underline; }

/* Header */
.site-header { position: relative; z-index: 20; border-bottom: 1px solid var(--rule); background: var(--paper); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; min-height: 76px; gap: 24px; }
.site-header--overlay { position: absolute; inset: 0 0 auto 0; background: transparent; border-bottom-color: rgba(236,233,226,.18); color: var(--on-dark); }
.brand { display: inline-flex; align-items: center; gap: 12px; color: inherit; text-decoration: none; }
.brand:hover { color: inherit; }
.brand__mark { flex: none; color: var(--accent); }
.site-header--overlay .brand__mark, .brand--light .brand__mark { color: currentColor; }
.brand__name { font-family: var(--serif); font-size: 1.35rem; font-weight: 500; letter-spacing: 0.005em; }
.site-nav__list { display: flex; gap: clamp(20px, 3vw, 40px); }
.site-nav a { color: inherit; text-decoration: none; font-size: 0.95rem; font-weight: 500; padding: 6px 0; border-bottom: 1px solid transparent; }
.site-nav a:hover { border-bottom-color: currentColor; color: inherit; }
.site-nav a[aria-current="page"] { border-bottom-color: var(--accent); }
.site-header--overlay .site-nav a[aria-current="page"] { border-bottom-color: currentColor; }
.nav-toggle { display: none; }

@media (max-width: 860px) {
  .nav-toggle {
    display: inline-flex; align-items: center; gap: 10px; min-height: 44px; padding: 0 4px;
    background: none; border: 0; color: inherit; font: 600 0.9rem var(--sans); cursor: pointer;
  }
  .nav-toggle__bars { display: grid; gap: 5px; width: 20px; }
  .nav-toggle__bars span { display: block; height: 2px; background: currentColor; transition: transform .2s ease; }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bars span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bars span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .site-nav {
    position: absolute; left: 0; right: 0; top: 100%;
    background: var(--paper); color: var(--ink); border-bottom: 1px solid var(--rule);
    display: none;
  }
  .site-header--overlay .site-nav { background: var(--dark); color: var(--on-dark); border-bottom-color: rgba(236,233,226,.18); }
  .site-nav.is-open { display: block; }
  .site-nav__list { flex-direction: column; gap: 0; padding: 8px var(--gutter) 20px; }
  .site-nav__list a { display: block; padding: 14px 0; font-size: 1.1rem; border-bottom: 1px solid var(--rule); }
  .site-header--overlay .site-nav__list a { border-bottom-color: rgba(236,233,226,.14); }
}

/* Hero */
.hero {
  position: relative; isolation: isolate; overflow: hidden;
  min-height: 100vh; min-height: 100svh; max-height: 1100px;
  display: flex; align-items: flex-end;
  background: var(--dark); color: var(--on-dark);
}
.hero__media { position: absolute; inset: 0; z-index: -1; }
.hero__media picture { position: absolute; inset: 0; }
.hero__poster, .hero__video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 62%; }
@media (max-width: 768px) { .hero__poster, .hero__video { object-position: 44% 70%; } }
.hero__video { opacity: 0; transition: opacity .8s ease; }
.hero__video.is-playing { opacity: 1; }
.hero__scrim { position: absolute; inset: 0; background: rgba(8, 47, 50, 0.68); }
.hero__content { padding-top: 140px; padding-bottom: clamp(56px, 9vh, 104px); }
.hero__eyebrow { font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--on-dark); opacity: .88; margin-bottom: 1.25rem; }
.hero__title {
  font-family: var(--serif); font-weight: 400; line-height: 0.98; letter-spacing: -0.02em;
  font-size: clamp(3.1rem, 10vw, 7.5rem); max-width: 11ch;
}
.hero__lede { margin-top: 1.6rem; max-width: 52ch; font-size: clamp(1.05rem, 1.6vw, 1.25rem); line-height: 1.55; color: var(--on-dark); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 2.2rem; }
.hero__pause {
  position: absolute; right: var(--gutter); bottom: 20px;
  display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; padding: 0;
  background: var(--dark); color: var(--on-dark); border: 1px solid rgba(236,233,226,.4); cursor: pointer;
}
.hero__pause[hidden] { display: none; }
.hero__pause:hover { border-color: var(--on-dark); }
.hero__pause-icon--play { display: none; }
.hero__pause.is-paused .hero__pause-icon--pause { display: none; }
.hero__pause.is-paused .hero__pause-icon--play { display: block; }
.hero__pause-tip { position: absolute; right: 0; bottom: calc(100% + 8px); white-space: nowrap; font: 500 0.75rem var(--sans); background: var(--dark); color: var(--on-dark); padding: 5px 8px; border: 1px solid rgba(236,233,226,.3); opacity: 0; visibility: hidden; transition: opacity .15s ease; pointer-events: none; }
.hero__pause:hover .hero__pause-tip, .hero__pause:focus-visible .hero__pause-tip { opacity: 1; visibility: visible; }

/* Sections */
.section { padding-block: var(--space); }
.section--tight { padding-block: clamp(48px, 6vw, 80px); }
.section--rule { border-top: 1px solid var(--rule); }
.section--tint { background: var(--tint); }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 2.5rem; flex-wrap: wrap; }
.grid-2 { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 6vw, 96px); }
.grid-2 > :first-child .h2 { margin-bottom: 1rem; }
@media (max-width: 860px) { .grid-2 { grid-template-columns: 1fr; } }

/* Facts */
.facts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 32px; }
.facts__item { border-top: 1px solid var(--ink); padding-top: 18px; }
.facts dt { font-family: var(--serif); font-size: clamp(1.8rem, 3vw, 2.4rem); line-height: 1.1; margin-bottom: 10px; }
.facts dd { color: var(--ink-2); font-size: 0.97rem; }
@media (max-width: 960px) { .facts { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; } }
@media (max-width: 520px) { .facts { grid-template-columns: 1fr; gap: 28px; } }

/* Index list (home expertise) */
.index-list { border-top: 1px solid var(--ink); }
.index-list li { border-bottom: 1px solid var(--rule); }
.index-list__link {
  display: grid; grid-template-columns: 56px minmax(0, 5fr) minmax(0, 6fr); gap: 16px 32px; align-items: baseline;
  padding: 22px 8px; color: inherit; text-decoration: none; transition: background-color .15s ease;
}
.index-list__link:hover { background: var(--tint); color: inherit; }
.index-list__code { font-family: var(--mono); font-size: 0.8rem; color: var(--accent); }
.index-list__title { font-family: var(--serif); font-size: 1.35rem; line-height: 1.25; }
.index-list__summary { color: var(--muted); font-size: 0.97rem; }
@media (max-width: 760px) {
  .index-list__link { grid-template-columns: 40px minmax(0, 1fr); padding-inline: 0; }
  .index-list__summary { grid-column: 2; }
}

/* Spec list */
.spec-list { border-top: 1px solid var(--ink); }
.spec-list li { display: flex; justify-content: space-between; gap: 24px; padding: 16px 0; border-bottom: 1px solid var(--rule); }
.spec-list li > span:first-child { font-weight: 500; }
.spec-list__note { font-family: var(--mono); font-size: 0.8rem; color: var(--muted); text-align: right; }
@media (max-width: 560px) { .spec-list li { flex-direction: column; gap: 4px; } .spec-list__note { text-align: left; } }

/* Steps */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 36px 40px; }
.steps li { counter-increment: step; border-top: 1px solid var(--ink); padding-top: 16px; }
.steps li::before { content: "0" counter(step); font-family: var(--mono); font-size: 0.78rem; color: var(--accent); display: block; margin-bottom: 8px; }
.steps h3 { font-family: var(--serif); font-weight: 500; font-size: 1.35rem; margin-bottom: 6px; }
.steps p { color: var(--ink-2); font-size: 0.98rem; }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }

/* Standards */
.standards { border-top: 1px solid var(--ink); margin-bottom: 1.25rem; }
.standards li { display: grid; grid-template-columns: minmax(0, 15rem) minmax(0, 1fr); gap: 8px 24px; padding: 16px 0; border-bottom: 1px solid var(--rule); }
.standards code { font-size: 0.9rem; font-weight: 500; }
.standards span { color: var(--ink-2); font-size: 0.97rem; }
@media (max-width: 560px) { .standards li { grid-template-columns: 1fr; } }

/* CTA band */
.cta-band { background: var(--dark); color: var(--on-dark); padding-block: clamp(56px, 7vw, 88px); }
.cta-band__inner { display: flex; justify-content: space-between; align-items: end; gap: 32px; flex-wrap: wrap; }
.cta-band__title { font-family: var(--serif); font-weight: 400; font-size: clamp(2rem, 4vw, 3rem); line-height: 1.1; }
.cta-band__text { color: var(--on-dark-muted); margin-top: 10px; max-width: 52ch; }
.cta-band__actions { display: flex; flex-wrap: wrap; gap: 12px; }
.cta-band .btn--primary { background: var(--on-dark); color: var(--ink); }
.cta-band .btn--primary:hover { background: #fff; }

/* Page head (inner pages) */
.page-head { border-bottom: 1px solid var(--rule); position: relative; }
.page-head::after {
  /* Scale-rule ticks: a quiet reference to a drawing border */
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 8px;
  background-image: repeating-linear-gradient(90deg, var(--rule) 0 1px, transparent 1px 12px);
  opacity: .9; pointer-events: none;
}
.page-head__inner { padding-top: clamp(56px, 8vw, 104px); padding-bottom: clamp(48px, 6vw, 80px); }
.page-head__title { font-family: var(--serif); font-weight: 400; font-size: clamp(2.4rem, 6vw, 4.5rem); line-height: 1.04; letter-spacing: -0.015em; max-width: 18ch; }
.page-head__lede { margin-top: 1.25rem; max-width: 60ch; font-size: clamp(1.05rem, 1.5vw, 1.2rem); color: var(--ink-2); }

/* Expertise page */
.expertise-layout { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: clamp(32px, 5vw, 80px); padding-block: clamp(48px, 6vw, 80px); }
.toc { position: sticky; top: 24px; align-self: start; }
.toc ol li + li { margin-top: 2px; }
.toc a { display: block; padding: 6px 0; color: var(--ink-2); text-decoration: none; font-size: 0.93rem; line-height: 1.4; }
.toc a:hover { color: var(--accent); }
.toc__code { font-family: var(--mono); font-size: 0.75rem; color: var(--accent); margin-right: 6px; }
.area { border-top: 1px solid var(--ink); padding-top: 24px; padding-bottom: clamp(48px, 6vw, 72px); scroll-margin-top: 24px; }
.area__code { font-family: var(--mono); font-size: 0.8rem; color: var(--accent); margin-bottom: 8px; }
.area__title { font-family: var(--serif); font-weight: 400; font-size: clamp(1.7rem, 3vw, 2.3rem); line-height: 1.15; max-width: 22ch; }
.area__problem { margin-top: 1rem; font-size: 1.12rem; color: var(--ink-2); max-width: 62ch; }
.area__cols { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: 32px 48px; margin-top: 2rem; }
.area__cols .label { margin-bottom: .6rem; }
.area--note { background: var(--tint); border-top: 0; padding: 28px; }
.area--note p { margin-top: 12px; max-width: 64ch; }
.ticks li { position: relative; padding-left: 22px; }
.ticks li + li { margin-top: 0.55em; }
.ticks li::before { content: ""; position: absolute; left: 0; top: 0.72em; width: 10px; height: 1px; background: var(--accent); }
@media (max-width: 960px) {
  .expertise-layout { grid-template-columns: 1fr; }
  .toc { position: static; border: 1px solid var(--rule); padding: 20px; }
  .area__cols { grid-template-columns: 1fr; }
}

/* Experience page */
.scope { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 32px; }
.scope > div { border-top: 1px solid var(--ink); padding-top: 14px; }
.scope dt { font-family: var(--mono); font-size: 0.75rem; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); margin-bottom: 8px; }
.scope dd { font-size: 0.98rem; }
@media (max-width: 960px) { .scope { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .scope { grid-template-columns: 1fr; } }
.timeline { border-top: 1px solid var(--ink); margin-bottom: 2rem; }
.timeline__item { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 16px 40px; padding: 32px 0; border-bottom: 1px solid var(--rule); }
.timeline__period { font-family: var(--mono); font-size: 0.85rem; color: var(--accent); padding-top: 6px; }
.timeline__role { font-family: var(--serif); font-weight: 500; font-size: clamp(1.35rem, 2.2vw, 1.7rem); line-height: 1.2; }
.timeline__org { color: var(--muted); margin: 6px 0 16px; }
.timeline .ticks { max-width: 70ch; }
@media (max-width: 700px) { .timeline__item { grid-template-columns: 1fr; gap: 6px; } .timeline__period { padding-top: 0; } }

/* About page */
.about-grid { max-width: 820px; }
.about-grid--portrait { max-width: calc(var(--wrap) + var(--gutter) * 2); display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: clamp(32px, 6vw, 80px); align-items: start; }
.portrait { margin: 0; }
.portrait img { width: 100%; height: auto; aspect-ratio: 4 / 5; object-fit: cover; object-position: 50% 30%; background: #8d8d8d; }
@media (max-width: 760px) { .about-grid--portrait { grid-template-columns: 1fr; } .portrait { max-width: 360px; } }
.cred-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; }
.cred-grid > div { border-top: 1px solid var(--ink); padding-top: 16px; }
.cred-grid__head { font-family: var(--serif); font-weight: 500; font-size: 1.25rem; margin-bottom: 10px; }
@media (max-width: 860px) { .cred-grid { grid-template-columns: 1fr; gap: 28px; } }

/* Contact page */
.contact-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: clamp(40px, 6vw, 96px); align-items: start; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-list { border-top: 1px solid var(--ink); margin-bottom: 2.5rem; }
.contact-list > div { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--rule); }
.contact-list dt { font-family: var(--mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); padding-top: 3px; }
.contact-list dd { overflow-wrap: anywhere; }
.contact-aside__block + .contact-aside__block { margin-top: 2.5rem; }
.contact-aside__block p { margin-bottom: .6rem; }

.form { display: grid; gap: 22px; }
.field { display: grid; gap: 6px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
@media (max-width: 560px) { .field-row { grid-template-columns: 1fr; } }
.field label { font-weight: 600; font-size: 0.95rem; }
.req { color: var(--error); }
.optional { font-weight: 400; color: var(--muted); }
.field input[type="text"], .field input[type="email"], .field input[type="tel"], .field select, .field textarea {
  width: 100%; font: inherit; font-size: 1rem; color: var(--ink);
  background: #fff; border: 1px solid var(--field); border-radius: 0; padding: 12px 14px; min-height: 48px;
}
.field select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%2315191B' stroke-width='1.5'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 40px; }
.field textarea { resize: vertical; min-height: 150px; }
.field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible { outline: 3px solid var(--focus); outline-offset: 1px; border-color: var(--ink); }
.field__hint { font-size: 0.88rem; color: var(--muted); }
.field__error { font-size: 0.9rem; color: var(--error); font-weight: 500; }
.field__error:empty { display: none; }
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: var(--error); border-width: 2px; }
.field--check { grid-template-columns: 24px minmax(0, 1fr); align-items: start; column-gap: 12px; }
.field--check input { width: 22px; height: 22px; margin: 2px 0 0; accent-color: var(--accent); }
.field--check label { font-weight: 400; }
.field--check .field__error { grid-column: 2; }
.field--hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form .btn { justify-self: start; }
.form__note { font-size: 0.92rem; color: var(--ink-2); border-left: 3px solid var(--rule); padding-left: 14px; max-width: 60ch; }
.form__error-summary { border: 2px solid var(--error); padding: 16px 20px; background: #fff; }
.form__error-summary ul { margin-top: 8px; list-style: disc; padding-left: 20px; }
.form__error-summary a { color: var(--error); }
.form__status:empty { display: none; }
.form__status { padding: 16px 20px; border-left: 3px solid var(--accent); background: #fff; }
.form__status.is-error { border-left-color: var(--error); }

/* Footer */
.site-footer { background: var(--dark); color: var(--on-dark); padding-top: clamp(56px, 7vw, 80px); border-top: 1px solid rgba(236,233,226,.12); }
.cta-band + .site-footer { border-top-color: rgba(236,233,226,.12); }
.site-footer a { color: var(--on-dark); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; color: #fff; }
.site-footer .label { color: var(--on-dark-muted); }
.site-footer__grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 3fr) minmax(0, 4fr); gap: 40px; padding-bottom: 48px; }
.site-footer__desc { color: var(--on-dark-muted); margin-top: 16px; max-width: 36ch; font-size: 0.95rem; }
.site-footer li + li { margin-top: 8px; }
.site-footer__contact li { overflow-wrap: anywhere; }
.site-footer__base { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-top: 20px; padding-bottom: 28px; border-top: 1px solid rgba(236,233,226,.14); color: var(--on-dark-muted); font-size: 0.85rem; }
@media (max-width: 860px) { .site-footer__grid { grid-template-columns: 1fr; gap: 32px; } }

/* Home: principal */
.leader__grid { display: grid; grid-template-columns: minmax(0, 380px) minmax(0, 1fr); gap: clamp(32px, 7vw, 104px); align-items: center; }
.leader__role { font-family: var(--serif); font-style: italic; font-size: 1.2rem; color: var(--ink-2); margin: 0.25rem 0 1.5rem; }
.leader .prose { max-width: 56ch; margin-bottom: 1.5rem; }
@media (max-width: 760px) { .leader__grid { grid-template-columns: 1fr; } .leader .portrait { max-width: 340px; } }


/* ---- Enquiry-led additions ---- */
@media (min-width: 861px) { .site-nav { display: flex; align-items: center; gap: clamp(20px, 2.5vw, 36px); } }
.site-nav__phone a { font-family: var(--mono); font-size: 0.88rem; letter-spacing: 0.02em; white-space: nowrap; }
.site-nav .btn--header { min-height: 42px; padding: 0.55em 1.1em; font-size: 0.88rem; background: var(--accent); color: #fff; white-space: nowrap; border-bottom: 0; }
.site-nav .btn--header:hover { background: var(--accent-deep); color: #fff; }
.site-header--overlay .site-nav .btn--header { background: var(--on-dark); color: var(--ink); }
.site-header--overlay .site-nav .btn--header:hover { background: #fff; color: var(--ink); }
@media (max-width: 1120px) and (min-width: 861px) { .site-nav__phone { display: none; } }
@media (max-width: 860px) {
  .site-nav.is-open { display: block; }
  .site-nav .btn--header { margin: 4px var(--gutter) 20px; display: flex; }
  .site-header--overlay .site-nav .btn--header { background: var(--on-dark); }
}

.hero__call { margin-top: 1.4rem; font-size: 0.95rem; color: var(--on-dark); }
.hero__call a { color: var(--on-dark); font-weight: 600; }
.hero__call a:hover { color: #fff; }

.situations { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 40px; border-top: 1px solid var(--ink); }
.situations li { border-bottom: 1px solid var(--rule); }
.situations a { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; padding: 18px 4px; color: inherit; text-decoration: none; transition: background-color .15s ease; }
.situations a:hover { background: var(--tint); color: inherit; }
.situations__q { font-family: var(--serif); font-size: 1.2rem; line-height: 1.3; }
.situations__a { font-family: var(--mono); font-size: 0.75rem; letter-spacing: .06em; text-transform: uppercase; color: var(--accent); white-space: nowrap; }
.situations__a::after { content: " \2192"; }
@media (max-width: 860px) { .situations { grid-template-columns: 1fr; } }
@media (max-width: 520px) { .situations a { flex-direction: column; gap: 6px; } .situations__a { white-space: normal; } }

.groups { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; }
.groups__col { border-top: 1px solid var(--ink); padding-top: 18px; }
.groups__title { font-family: var(--serif); font-weight: 500; font-size: 1.6rem; }
.groups__lede { color: var(--ink-2); margin: 6px 0 16px; font-size: 0.97rem; }
.groups__list li { border-top: 1px solid var(--rule); }
.groups__list a { display: grid; grid-template-columns: 34px minmax(0, 1fr); padding: 12px 0; color: inherit; text-decoration: none; font-weight: 500; line-height: 1.4; }
.groups__list a:hover { color: var(--accent); }
.groups__code { font-family: var(--mono); font-size: 0.75rem; color: var(--accent); padding-top: 3px; }
@media (max-width: 900px) { .groups { grid-template-columns: 1fr; gap: 32px; } }

.reasons { display: grid; gap: 26px; }
.reasons li { border-top: 1px solid var(--ink); padding-top: 14px; }
.reasons h3 { font-family: var(--serif); font-weight: 500; font-size: 1.3rem; margin-bottom: 4px; }
.reasons p { color: var(--ink-2); }

.formats { margin-top: 36px; border-top: 1px solid var(--ink); }
.formats li { display: flex; justify-content: space-between; gap: 20px; padding: 12px 0; border-bottom: 1px solid var(--rule); }
.formats span { font-family: var(--mono); font-size: 0.8rem; color: var(--muted); text-align: right; }
@media (max-width: 520px) { .formats li { flex-direction: column; gap: 2px; } .formats span { text-align: left; } }

.facts--compact { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 24px; margin-bottom: 1.25rem; }
.facts--compact dt { font-size: 1.6rem; }
.facts--compact dd { font-size: 0.9rem; }
@media (max-width: 520px) { .facts--compact { grid-template-columns: 1fr; gap: 16px; } }
.leader__note { color: var(--ink-2); max-width: 56ch; margin-bottom: 1.25rem; }
.leader__role { margin-bottom: 1.25rem; }

.page-head__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 20px 28px; margin-top: 1.75rem; }
.svc-group + .svc-group { margin-top: 24px; }
.svc-group__title { font-family: var(--serif); font-weight: 400; font-size: 1.25rem; color: var(--ink-2); margin-bottom: 20px; padding: 14px 18px; background: var(--tint); }
.svc-group__title span { font-family: var(--mono); font-size: 0.8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); margin-right: 10px; }
.area__when { margin-top: 0.9rem; max-width: 64ch; color: var(--ink-2); }
.area__when strong { color: var(--ink); }
.area__cta { display: inline-block; margin-top: 1rem; }
.area--plain { border-top: 1px solid var(--ink); padding-top: 24px; }
.area--plain .standards { margin-top: 1.25rem; }
.toc .label + ol { margin-bottom: 18px; }

.contact-list__big { font-family: var(--serif); font-size: 1.5rem; text-decoration: none; white-space: nowrap; }
.enquire { border-top: 1px solid var(--rule); }
.enquire__lede { margin: 0.5rem 0 1.75rem; }

.callbar { display: none; }
@media (max-width: 860px) {
  .callbar { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; position: fixed; left: 0; right: 0; bottom: 0; z-index: 50; background: var(--dark); border-top: 1px solid rgba(236,233,226,.2); padding-bottom: env(safe-area-inset-bottom); }
  .callbar a { display: flex; align-items: center; justify-content: center; min-height: 54px; color: var(--on-dark); text-decoration: none; font-weight: 600; font-size: 0.95rem; }
  .callbar a + a { border-left: 1px solid rgba(236,233,226,.2); }
  .callbar .callbar__primary { background: var(--accent); color: #fff; }
  body { padding-bottom: calc(54px + env(safe-area-inset-bottom)); }
}


/* ---- Petrol palette pass ---- */
.hero, .site-footer, .cta-band, .band-petrol, .callbar, .site-header--overlay { --focus: var(--amber); }
.site-header--overlay .brand__mark { color: currentColor; }
.annot { font-family: var(--mono); font-size: 0.72rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; line-height: 1; white-space: nowrap; }
.annot sup { font-size: 0.72em; letter-spacing: 0.04em; text-transform: none; vertical-align: 0.5em; line-height: 0; }
.hero__annot { position: absolute; top: 104px; right: var(--gutter); color: var(--amber); background: var(--dark); padding: 7px 9px 6px; border-left: 2px solid var(--accent); }
.page-head__inner { position: relative; }
.page-head__annot { position: absolute; top: clamp(56px, 8vw, 104px); right: var(--gutter); color: var(--accent); }
.site-footer__annot { color: var(--amber); }
@media (max-width: 760px) { .hero__annot, .page-head__annot { display: none; } }

.site-footer, .cta-band { border-top-color: rgba(227,184,102,.18); }
.site-footer .label, .cta-band .label { color: var(--amber); }

.band-petrol { background: var(--dark); color: var(--on-dark); }
.band-petrol .label { color: var(--amber); }
.band-petrol .h2 { color: var(--on-dark); }
.band-petrol .reasons { counter-reset: reason; }
.band-petrol .reasons li { counter-increment: reason; position: relative; border-top: 1px solid rgba(236,233,226,.2); padding-top: 16px; padding-left: 52px; }
.band-petrol .reasons li::before { content: "0" counter(reason); position: absolute; left: 0; top: 18px; font-family: var(--mono); font-size: 0.8rem; font-weight: 500; color: var(--oxide-on-dark); }
.band-petrol .reasons li::after { content: ""; position: absolute; left: 0; top: -1px; width: 28px; height: 1px; background: var(--amber); }
.band-petrol .reasons h3 { color: var(--on-dark); }
.band-petrol .reasons p { color: var(--on-dark-muted); }
.band-petrol a { color: var(--amber); }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
  .hero__video { display: none; }
}