/* Aretia. styles.css
   Self-contained stylesheet. No build step. */

:root {
  /* Colour */
  --charcoal: #2D2D2D;
  --charcoal-soft: #4A4A4A;
  --pink: #C9A09B;
  --pink-deep: #A87B76;
  --cream: #FAF6F2;
  --line: #E5DDD6;
  --accent: #6B4A47;
  --white: #FFFFFF;
  --foot-line: rgba(0, 0, 0, 0.08);

  /* Type scale */
  --fs-eyebrow: 12px;
  --fs-body: 17px;
  --fs-lede: 19px;
  --fs-h3: 24px;
  --fs-h2: 32px;
  --fs-h1: 56px;

  /* Line height */
  --lh-tight: 1.15;
  --lh-body: 1.55;

  /* Section padding */
  --pad-section: 96px;

  /* Families */
  --serif: 'Playfair Display', Georgia, serif;
  --sans: 'Helvetica Neue', Helvetica, Inter, system-ui, Arial, sans-serif;
}

*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  color: var(--charcoal);
  background: var(--cream);
  line-height: var(--lh-body);
  font-size: var(--fs-body);
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 32px; }

.smallcaps {
  font-size: var(--fs-eyebrow);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--pink-deep);
  font-weight: 600;
}

/* Top nav */
nav.top {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 246, 242, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
nav.top .row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 0;
}
nav.top .logo {
  font-family: var(--serif);
  font-size: 24px;
  letter-spacing: 0.5px;
  color: var(--charcoal);
  text-decoration: none;
}
nav.top ul { display: flex; gap: 32px; list-style: none; align-items: center; }
nav.top a {
  color: var(--charcoal-soft);
  text-decoration: none;
  font-size: 14px;
}
nav.top a:hover { color: var(--charcoal); }
nav.top .cta {
  background: var(--charcoal);
  color: var(--white);
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 13px;
}
nav.top .cta:hover { background: var(--accent); color: var(--white); }
.hamburger {
  display: none;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--charcoal);
  margin: 5px 0;
}

/* Hero */
section.hero { padding: var(--pad-section) 0; }
section.hero .smallcaps {
  display: inline-block;
  margin-bottom: 12px;
}
section.hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: var(--fs-h1);
  line-height: var(--lh-tight);
  letter-spacing: -0.5px;
  color: var(--charcoal);
  max-width: 16ch;
  margin-bottom: 24px;
}
section.hero p.lede {
  font-size: var(--fs-lede);
  color: var(--charcoal-soft);
  max-width: 62ch;
  margin-bottom: 32px;
  line-height: var(--lh-body);
}

/* CTAs */
.ctas { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }

.btn,
.btn-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 14px 22px;
  font-size: 15px;
  letter-spacing: 0.04em;
  line-height: 1;
  text-decoration: none;
  font-family: var(--sans);
}
.btn {
  background: var(--charcoal);
  color: var(--white);
  border-radius: 2px;
}
.btn:hover { background: var(--accent); }
.btn.pink { background: var(--pink); color: var(--charcoal); }
.btn.pink:hover { background: var(--pink-deep); color: var(--white); }
.btn-link {
  color: var(--charcoal);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
}
.btn-link:hover {
  color: var(--accent);
  text-decoration-color: var(--accent);
}

/* Proof strip */
section.proof {
  padding: 0 0 var(--pad-section);
  border-bottom: 1px solid var(--line);
}
.proof-line {
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.5;
  color: var(--charcoal);
  max-width: 68ch;
  text-align: left;
}
.proof-line strong { color: var(--charcoal); font-weight: 600; }

/* Section heading */
h2.sec {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(var(--fs-h2), 3.6vw, 44px);
  color: var(--charcoal);
  margin-bottom: 8px;
  letter-spacing: -0.3px;
  line-height: var(--lh-tight);
}
.sec-intro {
  font-size: var(--fs-body);
  color: var(--charcoal-soft);
  margin-bottom: 48px;
  max-width: 60ch;
}

/* What we do */
section.what { padding: var(--pad-section) 0; }
.what-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px; }
.do-block {
  border-left: 3px solid var(--pink);
  padding: 4px 0 4px 22px;
}
.do-block .smallcaps { display: block; margin-bottom: 8px; }
.do-block h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: var(--fs-h3);
  margin-bottom: 12px;
  line-height: var(--lh-tight);
}
.do-block p {
  color: var(--charcoal-soft);
  font-size: 15px;
  margin-bottom: 8px;
}
.do-block p strong { color: var(--charcoal); font-weight: 600; }

/* Case studies */
section.cases { background: var(--white); padding: var(--pad-section) 0; }
.case {
  border-top: 1px solid var(--line);
  padding: 56px 0;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 32px;
  align-items: start;
}
.case:last-child { border-bottom: 1px solid var(--line); }
.case .num {
  font-family: var(--serif);
  font-size: 56px;
  color: var(--pink);
  line-height: 1;
}
.case .body { max-width: 80ch; }
.case .tag {
  display: block;
  margin-bottom: 12px;
}
.case h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 28px;
  margin: 4px 0 12px;
  letter-spacing: -0.3px;
  line-height: var(--lh-tight);
}
.case .ctx {
  color: var(--charcoal-soft);
  margin-bottom: 24px;
  font-size: 16px;
}
.case .grid3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 28px;
  margin-top: 8px;
}
.case .col h4 {
  font-size: var(--fs-eyebrow);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--pink-deep);
  font-weight: 600;
  margin-bottom: 12px;
}
.case .col ul { list-style: none; }
.case .col li {
  padding: 6px 0 6px 16px;
  position: relative;
  font-size: 14px;
  line-height: 1.5;
  color: var(--charcoal-soft);
}
.case .col li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 5px;
  height: 5px;
  background: var(--pink);
  border-radius: 50%;
}
.case .col li strong { color: var(--charcoal); font-weight: 600; }
.case a.ext {
  color: var(--pink-deep);
  text-decoration: none;
  border-bottom: 1px solid var(--pink);
}
.case a.ext:hover { color: var(--accent); }

.case .sub-h {
  margin-top: 36px;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 20px;
  color: var(--charcoal);
}

.case .ctas-inline { margin-top: 32px; }

/* Engagement cards */
.engage {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 28px;
}
.engage-card {
  border: 1px solid var(--line);
  padding: 20px;
  border-radius: 4px;
  background: var(--cream);
}
.engage-card h5 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 18px;
  margin-bottom: 6px;
}
.engage-card .cad {
  font-size: var(--fs-eyebrow);
  color: var(--pink-deep);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 10px;
  display: block;
  font-weight: 600;
}
.engage-card p {
  font-size: 14px;
  color: var(--charcoal-soft);
  line-height: 1.5;
}

/* Workflow grid for case 04 */
.flow {
  margin-top: 24px;
  border-top: 1px solid var(--line);
}
.flow-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 32px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.flow-row .stage {
  font-family: var(--serif);
  font-size: 17px;
  color: var(--accent);
}
.flow-row .change {
  font-size: 14px;
  color: var(--charcoal-soft);
  line-height: 1.55;
}

.why-block {
  margin-top: 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.why-card {
  background: var(--cream);
  border-left: 3px solid var(--pink);
  padding: 18px 22px;
}
.why-card h5 {
  font-family: var(--serif);
  font-size: 17px;
  margin-bottom: 8px;
}
.why-card p {
  font-size: 14px;
  color: var(--charcoal-soft);
}

.closing-line {
  margin-top: 18px;
  font-style: italic;
  color: var(--charcoal-soft);
  font-size: 15px;
}

/* Founder */
section.founder {
  padding: var(--pad-section) 0;
  background: var(--cream);
}
section.founder h2.sec { margin-bottom: 48px; }
.founder-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
}
.creds { list-style: none; }
.creds li {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.creds li:last-child { border-bottom: 0; }
.creds .org {
  display: block;
  font-family: var(--serif);
  font-size: 17px;
  color: var(--charcoal);
  margin-bottom: 4px;
}
.creds .role {
  font-size: 14px;
  color: var(--charcoal-soft);
}

.origin {
  background: var(--white);
  padding: 28px 32px;
  border-left: 3px solid var(--pink);
}
.origin p {
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.55;
  color: var(--charcoal);
  margin-bottom: 12px;
}
.origin p:last-child {
  margin-bottom: 0;
  font-size: 14px;
  color: var(--charcoal-soft);
  font-family: var(--sans);
  font-style: normal;
}

/* Contact */
section.contact {
  background: var(--charcoal);
  color: var(--cream);
  padding: var(--pad-section) 0;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
section.contact h2 {
  color: var(--cream);
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(var(--fs-h2), 3.6vw, 44px);
  margin-bottom: 12px;
  line-height: var(--lh-tight);
}
.contact-info { font-size: 16px; line-height: 1.9; }
.contact-info a {
  color: var(--pink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.contact-info a:hover { border-color: var(--pink); }
.contact-info .name {
  font-family: var(--serif);
  font-size: 20px;
  color: var(--cream);
  margin-bottom: 4px;
  display: block;
}
.contact-info .btn { margin-top: 18px; }

/* Footer */
footer {
  background: var(--cream);
  border-top: 1px solid var(--foot-line);
  padding: 32px 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--charcoal-soft);
  font-family: var(--sans);
}
.foot-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.foot-left { flex: 0 0 auto; }
.foot-left .logo-foot {
  font-family: var(--serif);
  font-size: 18px;
  color: var(--charcoal);
  text-decoration: none;
}
.foot-mid {
  flex: 1 1 auto;
  text-align: center;
  color: var(--charcoal-soft);
}
.foot-right { flex: 0 0 auto; }
.foot-right ul {
  display: flex;
  gap: 24px;
  list-style: none;
}
.foot-right a {
  color: var(--charcoal-soft);
  text-decoration: none;
}
.foot-right a:hover { color: var(--charcoal); }

/* Tablet */
@media (max-width: 1024px) {
  :root {
    --pad-section: 64px;
    --fs-h1: 40px;
  }
}

/* Mobile */
@media (max-width: 860px) {
  :root {
    --pad-section: 48px;
    --fs-h1: 32px;
  }
  body { font-size: 16px; }
  nav.top ul { display: none; }
  nav.top ul.open {
    display: flex;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--cream);
    padding: 24px 32px;
    border-bottom: 1px solid var(--line);
    gap: 18px;
  }
  .hamburger { display: block; }
  .what-grid,
  .case .grid3,
  .engage,
  .why-block,
  .founder-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .case {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .case .num { font-size: 40px; }
  .flow-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .ctas { flex-wrap: wrap; }
  .foot-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .foot-mid { text-align: left; }
  .foot-right ul { flex-wrap: wrap; gap: 16px; }
}

/* Focus states */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--pink);
  outline-offset: 3px;
}