/* ==========================================================================
   Strata Executive — Design System
   Navy / Gold / Cream — construction-executive-search brand
   ========================================================================== */

:root {
  --navy-deep: #0e1c2e;
  --navy: #142840;
  --navy-soft: #1f3554;
  --gold: #b49365;
  --gold-light: #d3ba8c;
  --gold-dim: rgba(180, 147, 101, 0.35);
  --cream: #f6f4ee;
  --cream-2: #efeae0;
  --paper: #fbfaf7;
  --ink: #1b2534;
  --slate: #6b6459;
  --line: rgba(20, 40, 64, 0.12);
  --line-on-navy: rgba(246, 244, 238, 0.16);

  --font-display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --container: 1180px;
  --radius: 2px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Reset ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
ul { list-style: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  font-family: var(--font-body);
  background: var(--cream);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--navy);
  line-height: 1.12;
  letter-spacing: -0.01em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--gold);
  display: inline-block;
}

p.lede {
  font-size: 20px;
  line-height: 1.55;
  color: var(--navy-soft);
  max-width: 46ch;
}

.text-slate { color: var(--slate); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 30px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: background 0.35s var(--ease), color 0.35s var(--ease), border-color 0.35s var(--ease), transform 0.35s var(--ease);
  white-space: nowrap;
}
.btn-primary {
  background: var(--gold);
  color: var(--navy-deep);
}
.btn-primary:hover { background: var(--gold-light); transform: translateY(-1px); }

.btn-ghost {
  border-color: var(--line);
  color: var(--navy);
  background: transparent;
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }

.btn-on-navy {
  border-color: var(--line-on-navy);
  color: var(--cream);
}
.btn-on-navy:hover { border-color: var(--gold); color: var(--gold-light); }

.btn svg { width: 14px; height: 14px; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--cream);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 92px;
}
.nav-logo img { height: 40px; width: auto; }
.nav-logo { display: flex; align-items: center; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 44px;
}
.nav-links a {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--navy);
  position: relative;
  padding-bottom: 6px;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--gold);
  transition: right 0.3s var(--ease);
}
.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after { right: 0; }
.nav-links a[aria-current="page"] { color: var(--gold); }

.nav-cta { display: flex; align-items: center; gap: 28px; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 32px;
  height: 22px;
  position: relative;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--navy);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.nav-toggle span { top: 50%; }
.nav-toggle span::before { top: -8px; }
.nav-toggle span::after { top: 8px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: translateY(8px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { transform: translateY(-8px) rotate(-45deg); }

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed;
    inset: 92px 0 0 0;
    background: var(--cream);
    flex-direction: column;
    justify-content: flex-start;
    padding: 48px 32px;
    gap: 28px;
    transform: translateX(100%);
    transition: transform 0.4s var(--ease);
  }
  .nav-links.is-open { transform: translateX(0); }
  .nav-links a { font-size: 20px; }
  .nav-cta .btn-ghost.desktop-only { display: none; }
}

/* ---------- Elevation-line motif (signature background) ---------- */
.motif {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.motif svg { position: absolute; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: var(--navy-deep);
  color: var(--cream);
  overflow: hidden;
  padding: 200px 0 140px;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 90% at 82% 8%, rgba(180,147,101,0.14), transparent 60%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 2; max-width: 760px; }
.hero .eyebrow { color: var(--gold-light); }
.hero .eyebrow::before { background: var(--gold-light); }
.hero h1 {
  color: var(--paper);
  font-size: clamp(40px, 5.4vw, 68px);
  margin: 22px 0 26px;
}
.hero h1 em { color: var(--gold-light); font-style: normal; }
.hero p.lede { color: rgba(246,244,238,0.78); max-width: 52ch; }
.hero-actions { display: flex; gap: 18px; margin-top: 40px; flex-wrap: wrap; }

.hero-mark {
  position: absolute;
  right: -60px;
  top: 50%;
  transform: translateY(-50%);
  width: 480px;
  opacity: 0.10;
  z-index: 1;
}
@media (max-width: 900px) {
  .hero-mark { display: none; }
  .hero { padding: 160px 0 100px; }
}

/* page (interior) header band */
.page-hero {
  position: relative;
  background: var(--navy-deep);
  color: var(--cream);
  overflow: hidden;
  padding: 150px 0 90px;
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(100% 100% at 85% 0%, rgba(180,147,101,0.14), transparent 60%);
}
.page-hero .inner { position: relative; z-index: 2; max-width: 680px; }
.page-hero h1 { color: var(--paper); font-size: clamp(34px, 4.6vw, 52px); margin-top: 18px; }
.page-hero p.lede { color: rgba(246,244,238,0.78); margin-top: 18px; }

/* ---------- Sections ---------- */
section { position: relative; }
.section { padding: 120px 0; }
.section-tight { padding: 90px 0; }
.section-alt { background: var(--cream-2); }
.section-navy { background: var(--navy-deep); color: var(--cream); }

.section-head { max-width: 620px; margin-bottom: 64px; }
.section-head h2 { font-size: clamp(30px, 3.4vw, 44px); margin-top: 18px; }
.section-navy .section-head h2 { color: var(--paper); }
.section-navy .eyebrow { color: var(--gold-light); }
.section-navy .eyebrow::before { background: var(--gold-light); }

/* ---------- Stats strip ---------- */
.stats {
  background: var(--navy);
  color: var(--cream);
  border-top: 1px solid var(--line-on-navy);
  border-bottom: 1px solid var(--line-on-navy);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 56px 0;
}
.stat { padding: 0 32px; border-left: 1px solid var(--line-on-navy); }
.stat:first-child { border-left: none; }
.stat .num {
  font-family: var(--font-display);
  font-size: clamp(30px, 3.2vw, 42px);
  color: var(--gold-light);
  line-height: 1;
}
.stat .label {
  margin-top: 10px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(246,244,238,0.7);
}
@media (max-width: 780px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); row-gap: 36px; }
  .stat:nth-child(3) { border-left: none; }
}

/* ---------- Approach pillars ---------- */
.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.pillar {
  background: var(--cream);
  padding: 44px 38px;
}
.pillar .mark {
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--gold);
  letter-spacing: 0.05em;
}
.pillar h3 { font-size: 23px; margin: 18px 0 14px; }
.pillar p { color: var(--slate); font-size: 15.5px; }
@media (max-width: 860px) {
  .pillars { grid-template-columns: 1fr; }
}

/* ---------- Elevation / levels diagram ---------- */
.elevation {
  border-top: 1px solid var(--line);
}
.level {
  display: grid;
  grid-template-columns: 120px 1fr 1.3fr;
  gap: 40px;
  align-items: start;
  padding: 40px 0;
  border-bottom: 1px solid var(--line);
  transition: background 0.3s var(--ease);
}
.level:hover { background: rgba(180,147,101,0.06); }
.level-index {
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--gold);
  letter-spacing: 0.06em;
  padding-top: 4px;
}
.level-index .rule {
  display: block;
  width: 36px;
  height: 1px;
  background: var(--gold);
  margin-top: 12px;
}
.level h3 { font-size: 24px; }
.level .tag {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--slate);
}
.level p { color: var(--slate); font-size: 15.5px; max-width: 52ch; }

@media (max-width: 780px) {
  .level { grid-template-columns: 1fr; gap: 14px; }
}

/* ---------- Process steps (services) ---------- */
.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 36px;
}
.process-step { position: relative; padding-top: 28px; border-top: 1px solid var(--gold-dim); }
.process-step .num {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--gold);
  letter-spacing: 0.08em;
}
.process-step h3 { font-size: 20px; margin: 14px 0 12px; }
.process-step p { color: var(--slate); font-size: 15px; }
@media (max-width: 900px) {
  .process { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .process { grid-template-columns: 1fr; }
}

/* ---------- Two-column split ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
@media (max-width: 900px) {
  .split { grid-template-columns: 1fr; gap: 48px; }
}
.split-media {
  position: relative;
  background: var(--navy-deep);
  aspect-ratio: 4/5;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.split-media img { width: 46%; opacity: 0.92; }

/* ---------- Sector / list grid ---------- */
.sector-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.sector {
  background: var(--cream);
  padding: 32px 30px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.sector .n { font-family: var(--font-display); font-size: 13px; color: var(--gold); }
.sector h4 { font-size: 18px; color: var(--navy); font-weight: 600; }
.sector span { color: var(--slate); font-size: 14px; }
@media (max-width: 860px) {
  .sector-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .sector-grid { grid-template-columns: 1fr; }
}

/* ---------- Quote ---------- */
.quote-block {
  position: relative;
  padding: 70px 0;
}
.quote-block blockquote {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 34px);
  color: var(--navy);
  line-height: 1.42;
  max-width: 820px;
}
.quote-block cite {
  display: block;
  margin-top: 26px;
  font-style: normal;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--slate);
}

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--navy-deep);
  color: var(--cream);
  position: relative;
  overflow: hidden;
  padding: 100px 0;
  text-align: center;
}
.cta-band h2 { color: var(--paper); font-size: clamp(28px, 3.6vw, 42px); max-width: 700px; margin: 0 auto 30px; }
.cta-band .actions { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy-deep);
  color: rgba(246,244,238,0.72);
  padding: 80px 0 34px;
  border-top: 1px solid var(--line-on-navy);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid var(--line-on-navy);
}
.footer-brand img { height: 34px; margin-bottom: 18px; }
.footer-brand p { max-width: 32ch; font-size: 14.5px; }
.footer-col h5 {
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: 18px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col a { font-size: 14.5px; transition: color 0.25s var(--ease); }
.footer-col a:hover { color: var(--gold-light); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 28px;
  font-size: 12.5px;
  letter-spacing: 0.02em;
  flex-wrap: wrap;
  gap: 12px;
}
@media (max-width: 860px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .footer-top { grid-template-columns: 1fr; }
}

/* ---------- Contact page ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 90px;
}
@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; gap: 56px; }
}
.contact-detail { padding: 30px 0; border-top: 1px solid var(--line); }
.contact-detail:last-child { border-bottom: 1px solid var(--line); }
.contact-detail .k {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  display: block;
  margin-bottom: 10px;
}
.contact-detail .v { font-size: 19px; color: var(--navy); font-weight: 500; }
.contact-detail a.v:hover { color: var(--gold); }

.form-field { margin-bottom: 26px; }
.form-field label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--navy-soft);
  margin-bottom: 10px;
}
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  border: none;
  border-bottom: 1px solid var(--line);
  background: transparent;
  padding: 12px 2px;
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--ink);
  transition: border-color 0.3s var(--ease);
}
.form-field textarea { resize: vertical; min-height: 120px; }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--gold);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
@media (max-width: 560px) { .form-row { grid-template-columns: 1fr; } }

.form-note { font-size: 13px; color: var(--slate); margin-top: 6px; }
.form-status {
  margin-top: 18px;
  font-size: 14px;
  display: none;
}
.form-status.is-visible { display: block; }
.form-status.ok { color: #4d7a5a; }
.form-status.err { color: #a2453a; }
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; }

/* ---------- Testimonial carousel ---------- */
.t-wrap {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  position: relative;
}
.t-quote-mark {
  font-family: var(--font-display);
  font-size: 72px;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 4px;
}
.t-track {
  position: relative;
  min-height: 230px;
}
.t-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s var(--ease);
}
.t-slide.is-active {
  opacity: 1;
  visibility: visible;
  position: relative;
}
.t-slide p {
  font-family: var(--font-display);
  font-size: clamp(19px, 2.2vw, 24px);
  color: var(--navy);
  line-height: 1.55;
}
.t-cite {
  display: block;
  margin-top: 24px;
  font-style: normal;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--slate);
}
.t-cite strong {
  color: var(--navy);
  font-weight: 600;
  letter-spacing: 0.02em;
}
.t-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  margin-top: 44px;
}
.t-arrow {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease);
}
.t-arrow:hover { border-color: var(--gold); color: var(--gold); }
.t-arrow svg { width: 16px; height: 16px; }
.t-dots { display: flex; align-items: center; gap: 9px; }
.t-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--line);
  border: none;
  padding: 0;
}
.t-dot.is-active { background: var(--gold); width: 20px; border-radius: 4px; transition: width 0.3s var(--ease); }

/* ---------- Testimonials page ---------- */
.testimonial-list { display: flex; flex-direction: column; }
.testimonial-item {
  padding: 52px 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 48px;
}
.testimonial-list .testimonial-item:last-child { border-bottom: 1px solid var(--line); }
.testimonial-item .who { padding-top: 6px; }
.testimonial-item .who .name {
  font-family: var(--font-display);
  font-size: 19px;
  color: var(--navy);
}
.testimonial-item .who .role {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
}
.testimonial-item blockquote {
  font-family: var(--font-display);
  font-size: clamp(18px, 2vw, 21px);
  color: var(--navy-soft);
  line-height: 1.6;
}
@media (max-width: 700px) {
  .testimonial-item { grid-template-columns: 1fr; gap: 16px; }
}

/* ---------- Utility ---------- */
.mt-0 { margin-top: 0; }
.center { text-align: center; margin-left: auto; margin-right: auto; }