/* ============================================
   Ovett & CxO — Design Tokens
   Palette: institutional navy + measured teal
   Typography: Source Serif 4 (headlines) + Inter (body)
   ============================================ */

:root {
  --color-navy:       #1B2A4A;
  --color-steel:      #2D5F7C;
  --color-teal:       #3A8F85;
  --color-teal-light: #E8F4F2;
  --color-text:       #1A1A2E;
  --color-text-mid:   #4A5068;
  --color-bg:         #FFFFFF;
  --color-bg-alt:     #F4F6F9;
  --color-border:     #D8DCE4;
  --color-white:      #FFFFFF;

  --font-heading: "Source Serif 4", "Georgia", serif;
  --font-body:    "Inter", system-ui, -apple-system, sans-serif;

  --measure:      42rem;   /* ~672px — body text max-width */
  --measure-wide: 72rem;   /* ~1152px — outer container */
  --space-xs:     0.5rem;
  --space-s:      1rem;
  --space-m:      1.5rem;
  --space-l:      2.5rem;
  --space-xl:     4rem;
  --space-xxl:    6rem;
}


/* ============================================
   Reset & Base
   ============================================ */

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

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-steel);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--color-teal);
}

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

::selection {
  background: var(--color-teal-light);
  color: var(--color-navy);
}


/* ============================================
   Typography
   ============================================ */

h1, h2, h3 {
  font-family: var(--font-heading);
  color: var(--color-navy);
  line-height: 1.2;
  font-weight: 600;
}

h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-m);
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: var(--space-s);
}

h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-xs);
}

p {
  max-width: var(--measure);
  margin-bottom: var(--space-s);
}

p:last-child {
  margin-bottom: 0;
}

strong {
  font-weight: 600;
}


/* ============================================
   Layout
   ============================================ */

.container {
  width: 100%;
  max-width: var(--measure-wide);
  margin: 0 auto;
  padding: 0 var(--space-m);
}

.section {
  padding: var(--space-xl) 0;
}

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

.section--navy {
  background: var(--color-navy);
  color: var(--color-white);
}

.section--navy h2,
.section--navy h3 {
  color: var(--color-white);
}

.section--navy a {
  color: var(--color-teal-light);
}

.section--navy a:hover {
  color: var(--color-white);
}


/* ============================================
   Header
   ============================================ */

.site-header {
  padding: var(--space-s) 0;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: var(--color-bg);
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-s);
}

.site-logo {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-navy);
  text-decoration: none;
  white-space: nowrap;
}

.site-logo:hover {
  color: var(--color-steel);
}

.site-logo span {
  color: var(--color-teal);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: var(--space-xs);
  cursor: pointer;
  color: var(--color-navy);
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
  display: block;
}

.site-nav ul {
  display: flex;
  list-style: none;
  gap: var(--space-m);
  align-items: center;
}

.site-nav a {
  font-size: 0.9375rem;
  color: var(--color-text-mid);
  text-decoration: none;
  font-weight: 500;
  padding: var(--space-xs) 0;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--color-navy);
}

.site-nav a[aria-current="page"] {
  border-bottom: 2px solid var(--color-teal);
}


/* ============================================
   Hero
   ============================================ */

.hero {
  padding: var(--space-xxl) 0 var(--space-xl);
  border-bottom: 1px solid var(--color-border);
}

.hero h1 {
  max-width: 38rem;
}

.hero .subhead {
  font-size: 1.1875rem;
  color: var(--color-text-mid);
  max-width: 36rem;
  line-height: 1.6;
  margin-bottom: var(--space-l);
}

.hero .cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-s);
}


/* ============================================
   Buttons / CTAs
   ============================================ */

.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  transition: background 0.15s ease, color 0.15s ease;
  cursor: pointer;
  border: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-teal);
  outline-offset: 3px;
}

.btn--primary {
  background: var(--color-navy);
  color: var(--color-white);
}

.btn--primary:hover {
  background: var(--color-steel);
  color: var(--color-white);
}

.btn--secondary {
  background: transparent;
  color: var(--color-navy);
  border: 1.5px solid var(--color-navy);
}

.btn--secondary:hover {
  background: var(--color-navy);
  color: var(--color-white);
}


/* ============================================
   Proof points (homepage)
   ============================================ */

.proof-grid {
  display: grid;
  gap: var(--space-l);
  margin-top: var(--space-l);
}

@media (min-width: 48rem) {
  .proof-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.proof-item h3 {
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--color-navy);
  font-size: 1.0625rem;
  margin-bottom: var(--space-xs);
}

.proof-item p {
  color: var(--color-text-mid);
  font-size: 0.9375rem;
}


/* ============================================
   Service cards (homepage teaser)
   ============================================ */

.services-grid {
  display: grid;
  gap: var(--space-m);
  margin-top: var(--space-l);
}

@media (min-width: 48rem) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  padding: var(--space-m);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  transition: border-color 0.15s ease;
}

.service-card:hover {
  border-color: var(--color-teal);
}

.service-card h3 {
  font-family: var(--font-heading);
  font-size: 1.125rem;
}

.service-card h3 a {
  color: var(--color-navy);
  text-decoration: none;
}

.service-card h3 a:hover {
  color: var(--color-steel);
}

.service-card p {
  font-size: 0.9375rem;
  color: var(--color-text-mid);
  margin-top: var(--space-xs);
}


/* ============================================
   Service detail pages
   ============================================ */

.service-detail .section:first-of-type {
  padding-top: var(--space-xl);
}

.service-detail h1 {
  max-width: 36rem;
}

.service-intro {
  font-size: 1.125rem;
  color: var(--color-text-mid);
  max-width: 36rem;
  margin-bottom: var(--space-l);
}

.service-section h2 {
  margin-top: var(--space-l);
}

.service-section ul {
  max-width: var(--measure);
  padding-left: 1.25rem;
  margin-bottom: var(--space-s);
}

.service-section li {
  margin-bottom: var(--space-xs);
}

.service-section li::marker {
  color: var(--color-teal);
}

.outcome-block {
  background: var(--color-teal-light);
  border-left: 3px solid var(--color-teal);
  padding: var(--space-m);
  margin-top: var(--space-l);
  border-radius: 0 4px 4px 0;
}

.outcome-block p {
  color: var(--color-navy);
  font-weight: 500;
}


/* ============================================
   About page
   ============================================ */

.track-record {
  margin-top: var(--space-l);
}

.track-record-item {
  padding: var(--space-m) 0;
  border-bottom: 1px solid var(--color-border);
}

.track-record-item:last-child {
  border-bottom: none;
}

.track-record-item h3 {
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--color-steel);
  font-size: 0.875rem;
  letter-spacing: 0.03em;
  margin-bottom: var(--space-xs);
}


/* ============================================
   Insights / Blog listing
   ============================================ */

.insights-list {
  list-style: none;
  margin-top: var(--space-l);
}

.insights-list li {
  padding: var(--space-m) 0;
  border-bottom: 1px solid var(--color-border);
}

.insights-list li:last-child {
  border-bottom: none;
}

.insights-list a {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--color-navy);
  text-decoration: none;
  line-height: 1.35;
  display: block;
}

.insights-list a:hover {
  color: var(--color-steel);
}

.insights-list .meta {
  font-size: 0.875rem;
  color: var(--color-text-mid);
  margin-top: var(--space-xs);
}


/* ============================================
   Contact page
   ============================================ */

.contact-methods {
  margin-top: var(--space-l);
}

.contact-methods dt {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-text-mid);
  margin-top: var(--space-m);
}

.contact-methods dt:first-child {
  margin-top: 0;
}

.contact-methods dd {
  font-size: 1.0625rem;
  margin-top: var(--space-xs);
}

.contact-methods dd a {
  color: var(--color-navy);
  font-weight: 500;
}


/* ============================================
   Footer
   ============================================ */

.site-footer {
  padding: var(--space-l) 0;
  border-top: 1px solid var(--color-border);
  font-size: 0.875rem;
  color: var(--color-text-mid);
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-s);
}

.footer-nav {
  display: flex;
  list-style: none;
  gap: var(--space-m);
}

.footer-nav a {
  color: var(--color-text-mid);
  text-decoration: none;
  font-size: 0.875rem;
}

.footer-nav a:hover {
  color: var(--color-navy);
}


/* ============================================
   Responsive
   ============================================ */

@media (max-width: 48rem) {
  .hero {
    padding: var(--space-xl) 0 var(--space-l);
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-s) var(--space-m);
  }

  .site-nav.is-open {
    display: block;
  }

  .site-nav ul {
    flex-direction: column;
    gap: 0;
  }

  .site-nav a {
    display: block;
    padding: var(--space-xs) 0;
  }

  .section {
    padding: var(--space-l) 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}