/* Opus Aure — site styles
   Palette and type follow the Opus Aure logo colour guide. */

:root {
  --navy: #1F2B38;
  --ink: #24303E;
  --night: #000C14;
  --sage: #5A665A;
  --sage-soft: #7F887A;
  --bronze: #B48A5A;
  --bronze-ink: #86653A;
  --cream: #F1ECE6;
  --paper: #FBF8F4;
  --line: #DCD4C9;
  --on-dark: #F1ECE6;
  --on-dark-muted: #C4BDB3;

  --serif: "Cormorant Garamond", "Iowan Old Style", Georgia, serif;
  --sans: "Montserrat", "Helvetica Neue", Arial, sans-serif;

  --wrap: 1180px;
  --gutter: clamp(20px, 5vw, 56px);
  --section: clamp(72px, 10vw, 128px);
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; }

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.1;
  margin: 0;
}

p { margin: 0; }

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

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.skip {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 10;
  padding: 10px 16px;
  background: var(--paper);
  color: var(--ink);
}
.skip:focus { top: 12px; }

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

.masthead {
  position: relative;
  background: var(--navy);
  color: var(--on-dark);
  overflow: hidden;
}

.masthead__contours {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: right center;
  pointer-events: none;
}

/* Fades the contours out behind the text column so copy stays easy to read. */
.masthead::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--navy) 0%, rgba(31, 43, 56, .82) 38%, rgba(31, 43, 56, 0) 72%);
  pointer-events: none;
}

.topbar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 24px;
  padding-bottom: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}
.brand__mark { height: 46px; width: auto; }
.brand__word { height: 40px; width: auto; }

.nav { display: flex; align-items: center; gap: 36px; }
.nav__list {
  display: flex;
  gap: 32px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.nav__list a {
  font-size: 14px;
  letter-spacing: .02em;
  text-decoration: none;
  color: var(--on-dark-muted);
  padding: 6px 0;
  border-bottom: 1px solid transparent;
}
.nav__list a:hover { color: var(--on-dark); }
.nav__list a[aria-current="page"] {
  color: var(--on-dark);
  border-bottom-color: var(--bronze);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(241, 236, 230, .4);
  color: var(--on-dark);
  font: 500 13px/1 var(--sans);
  padding: 10px 14px;
  cursor: pointer;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  font: 500 14px/1 var(--sans);
  letter-spacing: .02em;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background-color .2s, color .2s, border-color .2s;
}
.btn--solid { background: var(--bronze); color: var(--night); }
.btn--solid:hover { background: #C49B6B; }
.btn--line { border-color: rgba(241, 236, 230, .55); color: var(--on-dark); }
.btn--line:hover { background: rgba(241, 236, 230, .1); border-color: var(--on-dark); }
.btn--ink { background: var(--ink); color: var(--paper); }
.btn--ink:hover { background: var(--navy); }

/* ---------- Heroes ---------- */

.hero {
  position: relative;
  z-index: 1;
  padding-top: clamp(48px, 8vw, 104px);
  padding-bottom: clamp(120px, 14vw, 176px);
}
.hero h1 {
  max-width: 15ch;
  font-size: clamp(44px, 6.6vw, 84px);
  line-height: 1.02;
  color: #F7F2EB;
}
.hero__rule {
  width: 64px;
  height: 2px;
  margin: 36px 0 28px;
  background: var(--bronze);
}
.hero__lede {
  max-width: 34em;
  font-size: clamp(16px, 1.4vw, 18px);
  color: var(--on-dark-muted);
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 40px;
}

.page-hero {
  position: relative;
  z-index: 1;
  padding-top: clamp(40px, 6vw, 72px);
  padding-bottom: clamp(64px, 8vw, 104px);
}
.page-hero h1 {
  font-size: clamp(44px, 6vw, 72px);
  color: #F7F2EB;
}
.page-hero p {
  max-width: 36em;
  margin-top: 24px;
  font-size: clamp(16px, 1.4vw, 18px);
  color: var(--on-dark-muted);
}

/* ---------- Principles (overlapping the hero) ---------- */

.principles {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: -88px;
  padding: 0;
  list-style: none;
}
/* Subgrid lines the headings and paragraphs up across cards, even when one heading wraps. */
.principles li {
  display: grid;
  grid-row: span 2;
  grid-template-rows: subgrid;
  row-gap: 0;
  align-content: start;
  padding: 34px 30px 36px;
  background: var(--paper);
  border-top: 2px solid var(--bronze);
  box-shadow: 0 18px 40px -24px rgba(0, 12, 20, .35);
}
.principles h2 {
  font-size: 26px;
  margin-bottom: 12px;
  align-self: start;
}
.principles p { font-size: 15px; color: #4A5551; }

/* ---------- Sections ---------- */

.section { padding: var(--section) 0; }
.section--tight-top { padding-top: clamp(56px, 7vw, 88px); }

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: 24px 64px;
  align-items: end;
  margin-bottom: clamp(40px, 5vw, 64px);
}
.section-head h2 { font-size: clamp(34px, 4.2vw, 52px); }
.section-head p { max-width: 34em; color: #4A5551; }

.text-link {
  display: inline-block;
  margin-top: 18px;
  font-weight: 500;
  font-size: 14px;
  letter-spacing: .02em;
  text-decoration: none;
  color: var(--ink);
  border-bottom: 1px solid var(--bronze);
  padding-bottom: 3px;
}
.text-link:hover { color: var(--bronze-ink); }

/* ---------- Phases (home overview) ---------- */

.phases {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.phases > li {
  padding: 32px 32px 8px 0;
}
.phases > li + li {
  padding-left: 32px;
  border-left: 1px solid var(--line);
}
.phase__num {
  display: block;
  font-family: var(--serif);
  font-size: 26px;
  font-variant-numeric: lining-nums;
  line-height: 1;
  color: var(--bronze-ink);
  margin-bottom: 10px;
}
.phases h3 { font-size: 30px; margin-bottom: 18px; }
.phases ul { margin: 0; padding: 0; list-style: none; }
.phases ul li {
  padding: 12px 0;
  border-top: 1px solid var(--line);
  font-size: 15px;
}

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

.sectors-band { background: var(--paper); }

.sectors {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0 32px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.sectors li {
  padding: 22px 0;
  border-top: 1px solid var(--line);
  font-family: var(--serif);
  font-size: 24px;
  line-height: 1.25;
}

/* ---------- Team teaser ---------- */

.people {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.person {
  display: flex;
  gap: 24px;
  align-items: center;
  padding: 28px;
  background: var(--paper);
}
.person h3 { font-size: 26px; }
.person p { font-size: 14px; color: var(--sage); margin-top: 4px; }
.person .person__bio { margin-top: 10px; font-size: 15px; color: #4A5551; }

.monogram {
  flex: none;
  display: grid;
  place-items: center;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  border: 1.5px solid var(--sage);
  box-shadow: inset 0 0 0 5px var(--paper), inset 0 0 0 6px var(--bronze);
  font-family: var(--serif);
  font-size: 30px;
  color: var(--ink);
  letter-spacing: .04em;
}
.monogram--lg { width: 132px; height: 132px; font-size: 46px; box-shadow: inset 0 0 0 7px var(--cream), inset 0 0 0 8px var(--bronze); }

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

.phase-block {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: 32px 64px;
  padding: clamp(48px, 6vw, 80px) 0;
  border-top: 1px solid var(--line);
}
.phase-block:first-child { border-top: 0; padding-top: 0; }
.phase-block__intro { align-self: start; position: sticky; top: 32px; }
.phase-block__intro h2 { font-size: clamp(34px, 4vw, 48px); margin-bottom: 14px; }
.phase-block__intro p { color: #4A5551; max-width: 26em; }

.service + .service { margin-top: 48px; padding-top: 48px; border-top: 1px solid var(--line); }
.service h3 { font-size: clamp(26px, 2.6vw, 32px); margin-bottom: 14px; }
.service > p { max-width: 38em; }
.service h4 {
  margin: 24px 0 10px;
  font: 500 14px/1.4 var(--sans);
  letter-spacing: .02em;
  color: var(--sage);
}
.ticks { margin: 0; padding: 0; list-style: none; }
.ticks li {
  position: relative;
  padding: 6px 0 6px 22px;
  font-size: 15px;
}
.ticks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 15px;
  width: 10px;
  height: 1.5px;
  background: var(--bronze);
}

.specialist {
  margin-top: clamp(24px, 4vw, 48px);
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: 24px 64px;
  padding: clamp(40px, 5vw, 64px);
  background: var(--sage);
  color: var(--on-dark);
}
.specialist h2 { font-size: clamp(30px, 3.4vw, 42px); }
.specialist p { max-width: 38em; color: #E9E3DA; }
.specialist p + p { margin-top: 14px; }

/* ---------- Team page ---------- */

.profile {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: 32px 64px;
  padding: clamp(48px, 6vw, 80px) 0;
  border-top: 1px solid var(--line);
}
.profile:first-child { border-top: 0; padding-top: 0; }
.profile__id h2 { font-size: clamp(32px, 3.4vw, 42px); margin-top: 28px; }
.profile__role { margin-top: 8px; color: var(--sage); font-weight: 500; font-size: 15px; }
.profile__bio p { font-size: 17px; max-width: 36em; }
.profile__bio p + p { margin-top: 16px; }
.profile__lists {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.profile__lists h3 {
  font: 500 14px/1.4 var(--sans);
  letter-spacing: .02em;
  color: var(--sage);
  margin-bottom: 10px;
}

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

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  gap: 48px 80px;
}
.contact-details { display: grid; gap: 36px; }
.contact-details h2 {
  font: 500 14px/1.4 var(--sans);
  letter-spacing: .02em;
  color: var(--sage);
  margin-bottom: 8px;
}
.contact-details address { font-style: normal; font-size: 17px; }
.contact-details .big {
  font-family: var(--serif);
  font-size: clamp(26px, 2.8vw, 34px);
  line-height: 1.2;
  text-decoration: none;
}
.contact-details a.big {
  border-bottom: 1px solid var(--bronze);
}
.contact-details a.big:hover { color: var(--bronze-ink); }
.brief-card {
  align-self: start;
  padding: clamp(32px, 4vw, 48px);
  background: var(--paper);
  border-top: 2px solid var(--bronze);
}
.brief-card h2 { font-size: clamp(28px, 3vw, 36px); margin-bottom: 14px; }
.brief-card > p { color: #4A5551; margin-bottom: 18px; }
.brief-card .btn { margin-top: 28px; }

/* ---------- Closing band ---------- */

.closing {
  background: var(--navy);
  color: var(--on-dark);
}
.closing .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  padding-top: clamp(56px, 7vw, 88px);
  padding-bottom: clamp(56px, 7vw, 88px);
}
.closing h2 { font-size: clamp(32px, 4vw, 48px); color: #F7F2EB; }
.closing p { margin-top: 10px; color: var(--on-dark-muted); max-width: 32em; }

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

.footer {
  background: var(--night);
  color: var(--on-dark-muted);
  font-size: 14px;
}
.footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 4fr) minmax(0, 3fr);
  gap: 40px;
  padding-top: 64px;
  padding-bottom: 48px;
}
.footer__logo { width: 210px; height: auto; margin-left: -6px; }
.footer h2 {
  font: 500 13px/1.4 var(--sans);
  letter-spacing: .02em;
  color: var(--on-dark);
  margin-bottom: 12px;
}
.footer address { font-style: normal; }
.footer ul { margin: 0; padding: 0; list-style: none; }
.footer li + li { margin-top: 6px; }
.footer a { text-decoration: none; }
.footer a:hover { color: var(--on-dark); }
.footer__base {
  border-top: 1px solid rgba(241, 236, 230, .12);
  padding-top: 20px;
  padding-bottom: 28px;
  font-size: 13px;
}

/* ---------- Responsive ---------- */

@media (max-width: 960px) {
  .principles, .phases, .people { grid-template-columns: 1fr; }
  .sectors { grid-template-columns: 1fr 1fr; }
  .principles { margin-top: -72px; gap: 14px; }
  .phases > li, .phases > li + li { padding: 28px 0 8px; border-left: 0; }
  .phases > li + li { border-top: 1px solid var(--line); }
  .section-head, .phase-block, .profile, .specialist, .contact-grid { grid-template-columns: 1fr; }
  .phase-block__intro { position: static; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 760px) {
  .brand__mark { height: 34px; }
  .brand__word { height: 29px; }
  .nav-toggle { display: inline-block; }
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px var(--gutter) 28px;
    background: var(--navy);
    border-top: 1px solid rgba(241, 236, 230, .12);
  }
  .nav.is-open { display: flex; }
  .nav__list { flex-direction: column; gap: 0; }
  .nav__list a { display: block; padding: 14px 0; font-size: 16px; border-bottom: 1px solid rgba(241, 236, 230, .1); }
  .nav__list a[aria-current="page"] { border-bottom-color: rgba(241, 236, 230, .1); color: var(--bronze); }
  .nav .btn { margin-top: 20px; }
  .topbar { position: relative; }
  .masthead { overflow: visible; }
  .masthead::after { background: rgba(31, 43, 56, .5); }
  .person { flex-direction: column; align-items: flex-start; }
  .profile__lists { grid-template-columns: 1fr; }
  .sectors { grid-template-columns: 1fr; }
  .sectors li { padding: 16px 0; font-size: 22px; }
  .footer__grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .btn { transition: none; }
}