/* ============================================
   DataSmart — Design tokens
   ============================================ */
:root {
  --color-navy: #0F2A3D;
  --color-navy-light: #1C4258;
  --color-cream: #FAF8F4;
  --color-cream-deep: #F1EDE4;
  --color-teal: #3D6B6B;
  --color-teal-light: #E9F0EF;
  --color-amber: #C17A3D;
  --color-gray: #6B6660;
  --color-gray-light: #948E86;
  --color-border: #DDD7CB;

  --font-display: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;

  --max-width: 1120px;
}

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

html { scroll-behavior: smooth; }

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

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

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

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

/* ============================================
   Typography
   ============================================ */
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  color: var(--color-navy);
}

h1 { font-size: clamp(2.1rem, 4.5vw, 3.4rem); font-weight: 500; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.5rem, 2.8vw, 2rem); font-weight: 500; }
h3 { font-size: 1.15rem; font-weight: 600; }

.eyebrow {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-teal);
}

p { color: var(--color-gray); }

.lede {
  font-size: 1.15rem;
  color: var(--color-gray);
  max-width: 540px;
}

/* ============================================
   Header / Nav
   ============================================ */
header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-cream);
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 32px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 44px;
  width: auto;
}

nav ul {
  display: flex;
  gap: 32px;
  list-style: none;
}

nav a {
  font-size: 0.92rem;
  color: var(--color-navy);
  font-weight: 500;
  transition: color 0.15s ease;
}

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

.nav-cta {
  border: 1px solid var(--color-navy);
  padding: 9px 18px;
  border-radius: 3px;
  font-size: 0.88rem !important;
}

.nav-cta:hover {
  background: var(--color-navy);
  color: var(--color-cream) !important;
}

.menu-toggle {
  display: none;
  border: 1px solid var(--color-navy);
  background: transparent;
  color: var(--color-navy);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 3px;
  cursor: pointer;
  flex-shrink: 0;
}

.menu-toggle:hover,
.menu-toggle[aria-expanded="true"] {
  background: var(--color-navy);
  color: var(--color-cream);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 3px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: all 0.15s ease;
  border: 1px solid transparent;
}

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

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

.btn-secondary {
  border-color: var(--color-navy);
  color: var(--color-navy);
}

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

/* ============================================
   Hero
   ============================================ */
.hero {
  padding: 100px 0 80px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}

.hero h1 { margin: 14px 0 20px; }

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 32px;
}

.hero-art {
  background: var(--color-navy);
  border-radius: 6px;
  aspect-ratio: 4/3.2;
  position: relative;
  overflow: hidden;
}

/* ============================================
   Tech gallery (signature element)
   ============================================ */
.tech-gallery-section {
  padding: 56px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.tech-gallery-section .section-head { margin-bottom: 32px; max-width: none; }
.tech-gallery-section .section-head .lede { max-width: none; }

.tech-gallery-shell {
  display: flex;
  align-items: center;
  gap: 16px;
}

.tech-gallery {
  flex: 1;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.tech-gallery::-webkit-scrollbar { display: none; }

.tech-nav {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--color-navy);
  background: transparent;
  color: var(--color-navy);
  font-size: 1.15rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.tech-nav:hover:not(:disabled) {
  background: var(--color-navy);
  color: var(--color-cream);
}

.tech-nav:disabled {
  opacity: 0.3;
  cursor: default;
}

.tech-track {
  display: flex;
  gap: 20px;
  width: max-content;
}

.tech-card {
  flex: 0 0 auto;
  width: 420px;
  scroll-snap-align: start;
  background: var(--color-cream);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 28px 26px;
}

.tech-card .eyebrow { margin-bottom: 12px; display: block; }
.tech-card h3 { margin-bottom: 12px; }
.tech-card p:not(.eyebrow):not(.tech-substack) { font-size: 0.94rem; }

.tech-substack {
  font-size: 0.82rem;
  color: var(--color-gray-light);
  margin-bottom: 10px;
}

/* ============================================
   Sections / cards
   ============================================ */
section { padding: 80px 0; }

.section-head { max-width: 560px; margin-bottom: 48px; }
.section-head h2 { margin-top: 10px; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--color-cream);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 32px 28px;
}

.service-card .num {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--color-teal);
  font-weight: 600;
  margin-bottom: 16px;
  display: block;
}

.service-card h3 { margin-bottom: 10px; }
.service-card p { font-size: 0.94rem; }

.service-card.secondary {
  background: transparent;
  border-style: dashed;
}

/* ============================================
   Credibility section
   ============================================ */
.credibility {
  background: var(--color-navy);
  color: var(--color-cream);
}

.credibility .eyebrow { color: #8FB5B0; }
.credibility h2 { color: var(--color-cream); }
.credibility p { color: #C9D2D5; }

.cred-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-top: 40px;
  align-items: start;
}

.cred-stat {
  border-left: 2px solid var(--color-cream);
  padding-left: 20px;
}

.cred-stat .big {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--color-cream);
}

.cred-stat .label {
  font-size: 0.88rem;
  color: #A8B5BA;
  margin-top: 4px;
}

.cred-stats { display: flex; flex-direction: column; gap: 24px; }

.clients-label {
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #8FA0A5;
  margin-bottom: 16px;
}

.client-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 32px;
}

.client-logos .client-name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: #DCE3E5;
  opacity: 0.9;
}

/* ============================================
   Footer
   ============================================ */
footer {
  background: var(--color-cream-deep);
  border-top: 1px solid var(--color-border);
  padding: 56px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 14px;
  color: var(--color-navy);
}

.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col a, .footer-col p { font-size: 0.9rem; color: var(--color-gray); }
.footer-col a:hover { color: var(--color-teal); }

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--color-gray-light);
}

/* ============================================
   Contact page specific
   ============================================ */
.contact-hero { padding: 64px 0 40px; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  padding-bottom: 90px;
}

.contact-info-item {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
}

.contact-info-item .ico {
  width: 38px; height: 38px;
  border-radius: 4px;
  background: var(--color-teal-light);
  color: var(--color-teal);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  font-weight: 600;
  font-size: 0.9rem;
}

.contact-info-item h4 { font-size: 0.95rem; margin-bottom: 4px; }
.contact-info-item p { font-size: 0.92rem; margin: 0; }

form { display: flex; flex-direction: column; gap: 18px; }

.field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-navy);
}

.field input, .field textarea {
  width: 100%;
  border: 1px solid var(--color-border);
  background: var(--color-cream);
  border-radius: 3px;
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-navy);
}

.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--color-teal);
  box-shadow: 0 0 0 3px var(--color-teal-light);
}

.field textarea { resize: vertical; min-height: 130px; }

/* ============================================
   Services page specific
   ============================================ */
.page-hero { padding: 64px 0 40px; }

.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  padding: 56px 0;
  border-top: 1px solid var(--color-border);
}

.service-detail:first-of-type { border-top: none; padding-top: 0; }

.service-detail .eyebrow { margin-bottom: 10px; display: block; }
.service-detail h3 { font-size: clamp(1.3rem, 2vw, 1.6rem); margin-bottom: 14px; }
.service-detail > div:first-child > p { font-size: 1.02rem; max-width: 480px; }

.detail-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.detail-list li {
  position: relative;
  padding-left: 26px;
  font-size: 0.95rem;
  color: var(--color-gray);
}

.detail-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 8px;
  height: 8px;
  background: var(--color-navy);
}

.detail-list .detail-link {
  padding-left: 0;
  margin-top: 4px;
}

.detail-list .detail-link::before { content: none; }

.detail-link a {
  color: var(--color-teal);
  font-weight: 600;
  font-size: 0.92rem;
}

.detail-link a:hover { text-decoration: underline; }

.engagement-models .service-card p { font-size: 0.92rem; }

/* ============================================
   Community page specific
   ============================================ */
.community-card p { font-size: 0.94rem; margin-bottom: 16px; }

.community-card h3 a:hover { color: var(--color-teal); }

.card-link {
  display: inline-block;
  color: var(--color-teal);
  font-weight: 600;
  font-size: 0.9rem;
}

.card-link:hover { text-decoration: underline; }

/* ============================================
   Training page specific
   ============================================ */
.training-types {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.training-types .service-card p { margin-bottom: 16px; }

.curriculum-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.curriculum-grid h3 { margin-bottom: 10px; }
.curriculum-grid > div > p { font-size: 0.92rem; margin-bottom: 20px; }

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 880px) {
  nav ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--color-cream);
    border-bottom: 1px solid var(--color-border);
    padding: 4px 32px 16px;
  }

  nav ul li { width: 100%; }

  nav ul li a {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid var(--color-border);
  }

  nav ul li:last-child a { border-bottom: none; }

  .nav-cta {
    display: inline-block;
    margin-top: 4px;
  }

  .nav-wrap.nav-open nav ul { display: flex; }

  .menu-toggle { display: inline-block; }

  .hero-grid { grid-template-columns: 1fr; }
  .hero-art { order: -1; aspect-ratio: 16/9; }
  .card-grid { grid-template-columns: 1fr; }
  .cred-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .service-detail { grid-template-columns: 1fr; gap: 20px; }
  .training-types { grid-template-columns: 1fr; }
  .curriculum-grid { grid-template-columns: 1fr; gap: 32px; }
  .tech-nav { width: 36px; height: 36px; font-size: 1rem; }
  .tech-gallery-shell { gap: 8px; }
  .tech-card { width: 300px; }
  .tech-track { gap: 14px; }
}

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