/* ============================================
   Gridplex Digital — tokens
   Brand colors are unchanged from the original site.
   Navy shades below are tints/shades of the SAME
   base navy (#243665), used only for surface depth.
   ============================================ */
:root {
  --navy:        #243665; /* original background */
  --navy-deep:   #1b2a50; /* darker tint, for alternating sections */
  --navy-surface:#2c3f74; /* lighter tint, for cards */
  --navy-border: rgba(255, 255, 255, 0.10);
  --mint:        #8bd8bd; /* original accent */
  --mint-soft:   rgba(139, 216, 189, 0.9); /* raised from 0.65 for WCAG AA contrast */
  --mint-faint:  rgba(139, 216, 189, 0.12);
  --white:       #ffffff;
  --white-soft:  rgba(255, 255, 255, 0.78);

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --maxw: 1080px;
}

/* ============================================
   Reset & base
   ============================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  background-color: var(--navy);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.5rem;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
}

h2 { font-size: 1.9rem; color: var(--white); margin-bottom: 1.5rem; }
h3 { font-size: 1.1rem; color: var(--white); margin-bottom: 0.5rem; }

p { color: var(--white-soft); }

a { color: var(--mint); text-decoration: none; }
a:hover { text-decoration: underline; }

.mono { font-family: var(--font-mono); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--mint);
  color: var(--navy-deep);
  padding: 0.75rem 1rem;
  z-index: 1000;
  font-weight: 600;
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

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

.eyebrow {
  color: var(--mint);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
}
.eyebrow.mono { font-weight: 500; }

/* ============================================
   Header / nav
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(27, 42, 80, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--navy-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--white);
}
.brand:hover { text-decoration: none; }
.brand-logo { display: block; border-radius: 6px; }
.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}
.site-nav a {
  color: var(--white-soft);
  font-size: 0.92rem;
  font-weight: 500;
}
.site-nav a:hover { color: var(--mint); text-decoration: none; }

.nav-cta {
  border: 1px solid var(--mint);
  color: var(--mint) !important;
  padding: 0.4rem 0.9rem;
  border-radius: 6px;
}
.nav-cta:hover { background: var(--mint-faint); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 34px;
  height: 34px;
  background: transparent;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--white);
  border-radius: 2px;
}

/* ============================================
   Hero
   ============================================ */
.hero {
  position: relative;
  overflow: hidden;
  padding: 6rem 0 5rem;
  text-align: center;
}

.hero-graph {
  position: absolute;
  inset: 0;
  z-index: 0;
  mask-image: radial-gradient(ellipse at center, black 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 0%, transparent 75%);
  opacity: 0.9;
}
.hero-graph svg { width: 100%; height: 100%; }
.graph-lines line {
  stroke: var(--mint);
  stroke-width: 1;
  opacity: 0.18;
}
.graph-nodes circle {
  fill: var(--mint);
  opacity: 0.55;
}
.node-pulse {
  animation: pulse 3.5s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 0.55; r: 3; }
  50% { opacity: 0.95; r: 5; }
}
@media (prefers-reduced-motion: reduce) {
  .node-pulse { animation: none; }
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  margin-top: 0.75rem;
}

.tagline {
  color: var(--mint);
  font-weight: 500;
  margin-top: 0.6rem;
  font-size: 1.05rem;
}

.hero-copy {
  max-width: 620px;
  margin: 1.4rem auto 0;
  font-size: 1.05rem;
}

.credibility-strip {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 0;
  margin-top: 2.2rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--mint-soft);
}
.credibility-strip li {
  padding: 0 1rem;
  border-right: 1px solid var(--navy-border);
}
.credibility-strip li:last-child { border-right: none; }

.hero-ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 2.4rem;
}

.btn {
  display: inline-block;
  padding: 0.85rem 1.6rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
}
.btn:hover { text-decoration: none; }

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

.btn-outline {
  border: 1px solid var(--mint);
  color: var(--mint);
}
.btn-outline:hover { background: var(--mint-faint); }

/* ============================================
   Sections
   ============================================ */
.section {
  padding: 5rem 0;
}
.section-alt {
  background: var(--navy-deep);
}

.section-lede {
  max-width: 640px;
  margin-bottom: 2rem;
}

/* Reveal-on-scroll (JS adds .in-view) */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.in-view { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ============================================
   About / founder
   ============================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1.26fr 1.1fr;
  gap: 3rem;
  align-items: start;
}

.bio p { margin-bottom: 1.2rem; }

.founder-card {
  background: var(--navy-surface);
  border: 1px solid var(--navy-border);
  border-radius: 14px;
  padding: 2rem;
  text-align: center;
}
.founder-photo {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--mint);
  margin: 0 auto 1rem;
  display: block;
}
.founder-name { margin-bottom: 0.2rem; }
.founder-role {
  color: var(--mint-soft);
  font-size: 0.85rem;
  margin-bottom: 1.3rem;
}
.founder-credentials {
  list-style: none;
  text-align: left;
  font-size: 0.82rem;
  color: var(--white-soft);
  margin-bottom: 1.3rem;
}
.founder-credentials li {
  padding: 0.4rem 0;
  border-top: 1px solid var(--navy-border);
}
.founder-credentials li:first-child { border-top: none; }
.founder-note {
  font-size: 0.88rem;
  margin-bottom: 1.2rem;
}
.founder-link { font-weight: 600; font-size: 0.9rem; }

/* ============================================
   Services cards
   ============================================ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.card {
  background: var(--navy-surface);
  border: 1px solid var(--navy-border);
  border-radius: 12px;
  padding: 1.6rem;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.card:hover {
  border-color: var(--mint);
  transform: translateY(-3px);
}
.card p { font-size: 0.92rem; margin-bottom: 0; }

/* ============================================
   Approach / process
   ============================================ */
.process {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.8rem;
}
.process li {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  border-top: 2px solid var(--mint);
  padding-top: 1rem;
}
.process-num {
  color: var(--mint-soft);
  font-size: 0.85rem;
}
.process p { font-size: 0.92rem; }

/* ============================================
   Check list (who we serve)
   ============================================ */
.check-list {
  list-style: none;
  max-width: 680px;
}
.check-list li {
  position: relative;
  padding-left: 1.4rem;
  margin-bottom: 1rem;
}
.check-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 6px;
  height: 6px;
  background-color: var(--mint);
  border-radius: 50%;
}

/* ============================================
   Client logo wall
   ============================================ */
.logo-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 20px 24px;
  align-items: center;
}
.logo-grid li {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 64px;
}
.logo-grid img {
  max-width: 100%;
  height: auto;
  max-height: 64px;
  object-fit: contain;
  background-color: #fff;
  border-radius: 4px;
  transition: transform 0.2s ease;
}
.logo-grid img:hover { transform: translateY(-2px); }

/* ============================================
   FAQ (native details/summary — no JS needed)
   ============================================ */
.faq-list { max-width: 760px; }
.faq-list details {
  border-bottom: 1px solid var(--navy-border);
  padding: 1.1rem 0;
}
.faq-list summary {
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.02rem;
  color: var(--white);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: '+';
  color: var(--mint);
  font-size: 1.3rem;
  margin-left: 1rem;
  flex-shrink: 0;
}
.faq-list details[open] summary::after { content: '–'; }
.faq-list details p {
  margin-top: 0.9rem;
  font-size: 0.94rem;
  max-width: 640px;
}

/* ============================================
   Contact
   ============================================ */
.contact-inner { text-align: center; }
.contact-inner .section-lede { margin: 0 auto 2rem; }
.contact-actions { margin-bottom: 1.4rem; }
.contact-links { font-size: 0.92rem; }

/* ============================================
   Footer
   ============================================ */
.site-footer {
  border-top: 1px solid var(--navy-border);
  padding: 2.5rem 0;
}
.footer-inner {
  text-align: center;
  font-size: 0.85rem;
  color: var(--mint-soft);
}
.footer-inner p { color: var(--mint-soft); margin-bottom: 0.3rem; }
.footer-meta { font-size: 0.78rem; }
.back-to-top {
  display: inline-block;
  margin-top: 0.8rem;
  font-size: 0.82rem;
}

/* ============================================
   Why Gridplex / differentiators
   ============================================ */
.differentiators {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.8rem;
}
.differentiators li {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  border-top: 2px solid var(--mint);
  padding-top: 1rem;
}
.diff-num {
  color: var(--mint-soft);
  font-size: 0.85rem;
}
.differentiators p { font-size: 0.92rem; }

/* ============================================
   Engagement flow indicator
   ============================================ */
.engagement-flow {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.flow-step {
  font-size: 0.82rem;
  color: var(--mint-soft);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.flow-arrow {
  color: var(--mint-soft);
  font-size: 0.9rem;
  opacity: 0.6;
}
.engagement-duration {
  color: var(--mint-soft);
  font-size: 0.82rem;
  margin-bottom: 0.5rem;
}
.engagement-purpose {
  color: var(--white);
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}
.engagement-outcome {
  margin-top: 0.75rem;
  font-size: 0.88rem;
}
.engagement-outcome strong { color: var(--mint-soft); }

/* ============================================
   Where Are You Today? / decision list
   ============================================ */
.decision-list {
  list-style: none;
  max-width: 800px;
}
.decision-list li {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 1.5rem;
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--navy-border);
}
.decision-list li:first-child { border-top: 1px solid var(--navy-border); }
.decision-situation {
  color: var(--white-soft);
  font-size: 0.97rem;
  font-style: italic;
}
.decision-arrow {
  color: var(--mint-soft);
  font-size: 1.1rem;
  font-family: var(--font-mono);
}
.decision-link {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--mint);
  white-space: nowrap;
}
.decision-link:hover { text-decoration: underline; }

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 860px) {
  .about-grid { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .differentiators { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 640px) {
  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--navy-deep);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 0.5rem 1.5rem 1rem;
    border-bottom: 1px solid var(--navy-border);
    display: none;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 0.7rem 0; width: 100%; }
  .nav-cta { margin-top: 0.5rem; }

  .card-grid { grid-template-columns: 1fr; }
  .differentiators { grid-template-columns: 1fr; }
  .decision-list li {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
  .decision-arrow { display: none; }
  .credibility-strip li { padding: 0 0.6rem; font-size: 0.78rem; }
  .hero { padding: 4rem 0 3.5rem; }
  .section { padding: 3.5rem 0; }
}