:root {
  --navy: #1b2a4a;
  --navy-dark: #131f38;
  --charcoal: #3a3d42;
  --paper: #ffffff;
  --paper-alt: #f4f5f7;
  --ink: #1f2328;
  --ink-soft: #545a63;
  --line: #dfe2e7;
  --accent: #c8934a;
  --max: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: 'Source Serif 4', Georgia, serif;
  color: var(--navy);
  margin: 0 0 0.5em;
  line-height: 1.2;
}

p { margin: 0 0 1em; }

a { color: inherit; text-decoration: none; }

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-bar {
  background: var(--navy);
}

.header-subbar {
  height: 6px;
  background: var(--charcoal);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  font-family: 'Source Serif 4', Georgia, serif;
  color: #fff;
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav a {
  color: rgba(255,255,255,0.85);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

.nav a:hover { color: #fff; }

.nav-cta {
  background: #fff;
  color: var(--navy);
  border: 1px solid #fff;
  padding: 8px 18px;
  border-radius: 2px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.nav-cta:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--navy);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: #fff;
  border-radius: 1px;
}

/* Hero */
.hero {
  padding: 96px 0 80px;
  background: linear-gradient(180deg, var(--paper-alt) 0%, var(--paper) 100%);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(1.9rem, 3.6vw, 2.75rem);
  max-width: 880px;
  margin-bottom: 24px;
}

.hero-quote {
  font-family: 'Source Serif 4', Georgia, serif;
  font-style: italic;
  font-size: 1.2rem;
  color: var(--ink-soft);
  border-left: 3px solid var(--accent);
  padding-left: 18px;
  margin-bottom: 28px;
}

.hero-body {
  max-width: 700px;
  color: var(--ink-soft);
  font-size: 1.02rem;
}

.hero-lede {
  font-weight: 600;
  color: var(--navy);
  font-size: 1.08rem;
  margin-bottom: 32px;
}

.btn {
  display: inline-block;
  background: var(--navy);
  color: #fff;
  border: none;
  padding: 14px 32px;
  border-radius: 2px;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: background 0.15s ease;
}

.btn:hover { background: var(--navy-dark); }

.btn-block { display: block; width: 100%; }

/* Sections */
.section {
  padding: 88px 0;
}

.section-alt { background: var(--paper-alt); }

.section-title {
  font-size: 1.8rem;
  margin-bottom: 40px;
  position: relative;
  padding-bottom: 16px;
}

.section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 56px;
  height: 3px;
  background: var(--accent);
}

.section-title.light { color: #fff; }

/* Tiles */
.tile-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.tile {
  background: var(--paper);
  padding: 32px 28px;
}

.tile h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.tile p {
  color: var(--ink-soft);
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* Case studies */
.case-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.case {
  border-left: 3px solid var(--navy);
  padding: 8px 0 8px 24px;
  margin-bottom: 32px;
}

.case:last-child { margin-bottom: 0; }

.case h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.case p {
  color: var(--ink-soft);
  margin-bottom: 0;
  max-width: 800px;
}

/* About */
.about-wrap { max-width: 800px; }

.about-body {
  color: var(--ink-soft);
  font-size: 1.02rem;
}

/* Contact */
.section-dark {
  background: var(--navy);
  padding: 72px 0;
}

.contact-wrap { text-align: center; }

.contact-wrap .section-title {
  padding-bottom: 12px;
}

.contact-wrap .section-title::after {
  left: 50%;
  transform: translateX(-50%);
}

.contact-role {
  color: rgba(255,255,255,0.7);
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}

.contact-links {
  color: #fff;
  font-size: 1.02rem;
}

.contact-links a { border-bottom: 1px solid rgba(255,255,255,0.35); }
.contact-links a:hover { border-color: #fff; }
.contact-links .divider { margin: 0 14px; color: rgba(255,255,255,0.4); }

/* Footer */
.site-footer {
  background: var(--navy-dark);
  padding: 24px 0;
}

.site-footer p {
  margin: 0;
  color: rgba(255,255,255,0.55);
  font-size: 0.85rem;
  text-align: center;
}

/* Responsive */
@media (max-width: 860px) {
  .tile-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .wrap { padding: 0 20px; }
  .tile-grid { grid-template-columns: 1fr; }

  .nav-toggle { display: flex; }

  .nav {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--navy);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 20px 20px;
    display: none;
  }

  .nav.open { display: flex; }

  .nav a {
    width: 100%;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }

  .nav-cta {
    margin-top: 12px;
    border: 1px solid #fff;
    text-align: center;
  }

  .hero { padding: 64px 0 56px; }
  .section { padding: 64px 0; }

  .contact-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  .contact-links .divider { display: none; }
}

/* Lead modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(19, 31, 56, 0.55);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 200;
  opacity: 0;
  transition: opacity 0.18s ease;
}

.modal-overlay[hidden] { display: none; }

.modal-overlay.is-visible { opacity: 1; }

.modal {
  position: relative;
  background: var(--paper);
  width: 100%;
  max-width: 440px;
  padding: 44px 40px 40px;
  border-top: 3px solid var(--accent);
  box-shadow: 0 24px 60px rgba(19, 31, 56, 0.25);
  transform: translateY(8px);
  transition: transform 0.18s ease;
}

.modal-overlay.is-visible .modal { transform: translateY(0); }

.modal-close {
  position: absolute;
  top: 14px;
  right: 16px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  font-size: 1.4rem;
  line-height: 1;
  color: var(--ink-soft);
  cursor: pointer;
}

.modal-close:hover { color: var(--navy); }

.modal-eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 10px;
}

.modal h3 {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.modal-sub {
  color: var(--ink-soft);
  font-size: 0.95rem;
  margin-bottom: 24px;
}

.lead-form {
  display: flex;
  flex-direction: column;
}

.lead-form label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 6px;
}

.lead-form input,
.lead-form textarea {
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--ink);
  border: none;
  border-bottom: 1px solid var(--line);
  background: transparent;
  padding: 8px 2px;
  margin-bottom: 22px;
  resize: none;
  transition: border-color 0.15s ease;
}

.lead-form input:focus,
.lead-form textarea:focus {
  outline: none;
  border-bottom-color: var(--navy);
}

.lead-form input::placeholder,
.lead-form textarea::placeholder {
  color: #9aa0a8;
}

.modal-success { text-align: center; padding-top: 8px; }

.modal-success h3 { color: var(--navy); }

@media (max-width: 480px) {
  .modal { padding: 40px 24px 32px; }
}