/* ==========================================================================
   Parker Fox — parkerfox.co.uk
   Single-page site. No build step, no external requests.
   ========================================================================== */

:root {
  /* Brand purple sampled from the Parker Fox wordmark */
  --brand:      #462E6E;
  --brand-deep: #33204F;
  --brand-lite: #A793C8;
  --brand-soft: #ECE7F3;

  --ink:        #1C1430;
  --paper:      #F7F7FA;
  --white:      #FFFFFF;

  --slate:      #5F5872;
  --slate-lite: #C3BCD2;
  --slate-mid:  #9990AC;
  --rule:       #E2DFE9;
  --rule-dark:  rgba(255,255,255,.14);

  --wrap: 1120px;
  --gap:  24px;

  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
p { margin: 0 0 1rem; }
ul { list-style: none; margin: 0; padding: 0; }
dl, dd { margin: 0; }

h1, h2, h3 {
  margin: 0;
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.08;
}

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

/* ---------- Utilities ---------- */
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gap); }

.eyebrow {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent);
}

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  padding: 12px 18px; background: var(--ink); color: #fff;
}
.skip:focus { left: 8px; top: 8px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(247,246,250,.93);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--rule);
}
.bar {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--gap); height: 76px;
}
.brand img { height: 38px; width: auto; }

#nav ul { display: flex; gap: 30px; }
#nav a {
  display: inline-block;
  padding: 6px 0;
  color: var(--ink);
  font-size: 15px; font-weight: 500;
  border-bottom: 2px solid transparent;
}
#nav a:hover { border-bottom-color: var(--accent); text-decoration: none; }

.call {
  padding: 9px 16px;
  border: 1.5px solid var(--ink); border-radius: 2px;
  font-family: var(--font-mono); font-size: 14px; font-weight: 500;
  color: var(--ink); white-space: nowrap;
}
.call:hover { background: var(--brand); border-color: var(--brand); color: #fff; text-decoration: none; }

.menu-btn {
  display: none;
  padding: 8px 12px;
  background: none;
  border: 1.5px solid var(--ink); border-radius: 2px;
  font: 500 14px var(--font-sans);
  color: var(--ink);
  cursor: pointer;
}

/* ---------- Hero ---------- */
.hero { padding: 88px 0 72px; border-bottom: 1px solid var(--rule); }
.hero-grid {
  display: grid; grid-template-columns: 1.35fr .8fr;
  gap: 64px; align-items: start;
}
.hero h1 { font-size: clamp(2.6rem, 5.6vw, 4.4rem); }
.hero h1 em { font-style: normal; color: var(--accent); }
.lede { margin-top: 24px; max-width: 34em; font-size: 20px; color: var(--muted); }

.actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.btn {
  display: inline-block; padding: 15px 30px;
  border: 1.5px solid var(--ink); border-radius: 2px;
  font-size: 16px; font-weight: 600;
  transition: transform .15s ease;
}
.btn:hover { transform: translateY(-2px); text-decoration: none; }
.btn-primary   { background: var(--brand); color: #fff; }
.btn-secondary { background: transparent; color: var(--ink); }
.btn-accent     { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-deep); border-color: var(--accent-deep); }

/* Signature element: the stat ledger */
.ledger { border-top: 2px solid var(--brand); }
.ledger > div {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--rule);
}
.ledger .num {
  font-size: 2.6rem; font-weight: 800; line-height: 1; letter-spacing: -0.04em;
}
.ledger .unit { font-size: 1.2rem; letter-spacing: -0.02em; }
.ledger .lbl {
  max-width: 11em; text-align: right;
  font-family: var(--font-mono); font-size: 12px;
  letter-spacing: .1em; text-transform: uppercase; color: var(--muted);
}

/* ---------- Sections ---------- */
section { padding: 80px 0; border-bottom: 1px solid var(--rule); }
section.tint { background: var(--tint); }
section.dark { background: var(--deep); color: var(--muted-lite); border-bottom: none; }
section.dark h2 { color: #fff; }
section.dark p  { color: var(--muted-lite); }
section.dark .eyebrow { color: var(--accent-lite); }

.sec-head { max-width: 44rem; margin-bottom: 48px; }
.sec-head h2 { font-size: clamp(1.9rem, 3.6vw, 2.7rem); }
.sec-head p { margin-top: 18px; font-size: 19px; color: var(--muted); }

/* ---------- About: disciplines ---------- */
.disciplines {
  display: grid; grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--rule);
}
.disciplines li {
  padding: 18px 0;
  border-bottom: 1px solid var(--rule);
  font-family: var(--font-mono); font-size: 14px; color: var(--muted);
}

/* ---------- Services: promise cards ---------- */
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.card {
  padding: 36px;
  background: var(--white);
  border: 1px solid var(--rule); border-radius: 3px;
}
.card h3 { margin-bottom: 8px; font-size: 1.4rem; }
.card .sub {
  margin-bottom: 24px;
  font-family: var(--font-mono); font-size: 12px;
  letter-spacing: .12em; text-transform: uppercase; color: var(--muted);
}
.card li {
  position: relative;
  padding: 16px 0 16px 34px;
  border-top: 1px solid var(--rule);
  font-weight: 500;
}
.card li:first-child { border-top: none; }
.card li::before {
  content: ""; position: absolute; left: 0; top: 23px;
  width: 16px; height: 2px; background: var(--brand);
}

/* ---------- Roles ledger ---------- */
.roles { border-top: 2px solid var(--brand); }
.role {
  position: relative;
  display: grid; grid-template-columns: 96px 1fr auto;
  gap: 24px; align-items: center;
  padding: 24px 0;
  border-bottom: 1px solid var(--rule);
  color: var(--ink);
  transition: padding-left .18s ease;
}
.role:hover { padding-left: 16px; text-decoration: none; }
.role::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0;
  width: 4px; background: var(--brand);
  transform: scaleY(0); transform-origin: top;
  transition: transform .18s ease;
}
.role:hover::before { transform: scaleY(1); }

.role .ref { font-family: var(--font-mono); font-size: 13px; color: var(--muted); }
.role-body { display: block; }
.role-title {
  display: block;
  font-size: 1.2rem; font-weight: 600; letter-spacing: -0.015em;
}
.role .meta { display: block; margin-top: 4px; font-size: 14px; color: var(--muted); }
.role .go {
  font-family: var(--font-mono); font-size: 13px;
  letter-spacing: .08em; text-transform: uppercase; white-space: nowrap;
}
.role:hover .go { color: var(--accent); }

.roles-note { margin-top: 28px; font-size: 15px; color: var(--muted); }

/* ---------- Testimonials ---------- */
.quotes { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.quote {
  padding: 34px;
  background: var(--white);
  border: 1px solid var(--rule); border-radius: 3px;
}
.quote blockquote {
  margin: 0;
  font-size: 1.3rem; font-weight: 400; line-height: 1.45; letter-spacing: -0.01em;
}
.quote footer {
  margin-top: 22px; padding-top: 18px;
  border-top: 1px solid var(--rule);
  font-size: 15px; color: var(--muted);
}
.quote footer strong { display: block; color: var(--ink); font-weight: 600; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid; grid-template-columns: 1.2fr .8fr;
  gap: 56px; align-items: start;
}
.detail {
  display: grid; grid-template-columns: 100px 1fr;
  gap: 16px; align-items: baseline;
  padding: 18px 0;
  border-top: 1px solid rgba(255,255,255,.18);
}
.detail dt {
  font-family: var(--font-mono); font-size: 12px;
  letter-spacing: .1em; text-transform: uppercase; color: var(--muted-mid);
}
.detail dd { font-size: 17px; }
.detail dd a { color: var(--accent-lite); }

/* ---------- Footer ---------- */
.site-footer {
  padding: 56px 0 40px;
  background: var(--deep); color: var(--muted-mid);
  font-size: 15px;
}
.foot-grid {
  display: grid; grid-template-columns: 1.6fr 1fr;
  gap: 40px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--rule-dark);
}
.foot-head {
  margin: 0 0 16px;
  font-family: var(--font-mono); font-size: 12px; font-weight: 500;
  letter-spacing: .12em; text-transform: uppercase; color: #fff;
}
.foot-grid li { margin-bottom: 10px; }
.foot-grid a { color: var(--muted-lite); }
.foot-grid a:hover { color: #fff; }
.foot-brand img { height: 34px; margin-bottom: 18px; }

.legal {
  display: flex; justify-content: space-between; flex-wrap: wrap;
  gap: 20px; padding-top: 24px;
  font-size: 14px; color: var(--muted-mid);
}
.legal a { color: var(--muted-mid); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-grid,
  .cols,
  .quotes,
  .contact-grid,
  .foot-grid { grid-template-columns: 1fr; gap: 40px; }

  .disciplines { grid-template-columns: 1fr 1fr; }

  .hero { padding: 56px 0 48px; }
  section { padding: 56px 0; }

  #nav { display: none; }
  #nav.open {
    display: block;
    position: absolute; left: 0; right: 0; top: 76px;
    padding: 14px var(--gap) 22px;
    background: var(--paper);
    border-bottom: 1px solid var(--rule);
  }
  #nav.open ul { flex-direction: column; gap: 0; }
  #nav.open li { border-top: 1px solid var(--rule); }
  #nav.open li:first-child { border-top: none; }
  #nav.open a { display: block; padding: 14px 0; border-bottom: none; }

  .menu-btn { display: block; }
  .call { display: none; }

  .role { grid-template-columns: 1fr auto; gap: 8px 16px; }
  .role .ref { grid-column: 1 / -1; }
}

@media (max-width: 520px) {
  .disciplines { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}