/* ═══════════════════════════════════════════════
   ADHVAN Inc. — Site Stylesheet v2.0
   Stack: vanilla CSS + CSS custom properties
════════════════════════════════════════════════ */

/* ── Variables ── */
:root {
  /* Colours */
  --c-dark:        #060e1e;
  --c-dark-2:      #0b1830;
  --c-dark-3:      #0f2040;
  --c-dark-border: rgba(255,255,255,0.08);
  --c-light:       #ffffff;
  --c-light-alt:   #f4f7fb;
  --c-light-border:#e2e8f0;
  --c-accent:      #3b82f6;
  --c-accent-dim:  #1d4ed8;
  --c-accent-glow: rgba(59,130,246,0.18);
  --c-teal:        #14b8a6;
  --c-teal-glow:   rgba(20,184,166,0.18);
  --c-text-dark:   #1e293b;
  --c-text-muted:  #64748b;
  --c-text-light:  #f1f5f9;
  --c-text-dim:    #94a3b8;
  --c-success:     #10b981;
  --c-error:       #ef4444;

  /* Layout */
  --max-w: 1200px;
  --pad-x: clamp(20px, 5vw, 48px);
  --section-py: clamp(64px, 8vw, 112px);

  /* Typography */
  --font: 'Inter', system-ui, -apple-system, sans-serif;

  /* Radius */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;
  --r-full: 999px;

  /* Shadows */
  --sh-sm: 0 1px 4px rgba(0,0,0,.08);
  --sh-md: 0 4px 20px rgba(0,0,0,.10);
  --sh-lg: 0 12px 48px rgba(0,0,0,.14);
  --sh-accent: 0 4px 24px rgba(59,130,246,.22);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  color: var(--c-text-dark);
  background: var(--c-light);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ── Container ── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

/* ══════════════════════════════════════════════
   NAVBAR
══════════════════════════════════════════════ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background .3s, box-shadow .3s, backdrop-filter .3s;
  padding: 0;
}
.navbar.scrolled {
  background: rgba(6,14,30,.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--c-dark-border);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 68px;
}
.nav-brand {
  display: flex;
  align-items: baseline;
  gap: 4px;
  flex-shrink: 0;
}
.brand-name {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -.5px;
  color: var(--c-light);
}
.brand-suffix {
  font-size: .8rem;
  font-weight: 500;
  color: var(--c-text-dim);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav-links a {
  color: var(--c-text-dim);
  font-size: .875rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--r-sm);
  transition: color .2s, background .2s;
}
.nav-links a:hover { color: var(--c-light); background: rgba(255,255,255,.07); }
.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.lang-switch {
  display: flex;
  align-items: center;
  gap: 6px;
}
.lang-btn {
  font-size: .8rem;
  font-weight: 600;
  color: var(--c-text-dim);
  padding: 3px 6px;
  border-radius: 4px;
  transition: color .2s;
  letter-spacing: .03em;
}
.lang-btn.active { color: var(--c-light); }
.lang-btn:not(.active):hover { color: var(--c-light); }
.lang-sep { color: rgba(255,255,255,.2); font-size: .75rem; }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--c-text-dim);
  border-radius: 2px;
  transition: transform .25s, opacity .25s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ══════════════════════════════════════════════
   BUTTONS
══════════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--r-full);
  font-size: .9rem;
  font-weight: 600;
  transition: transform .15s, box-shadow .15s, background .15s, color .15s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--c-accent);
  color: #fff;
  box-shadow: var(--sh-accent);
}
.btn-primary:hover { background: var(--c-accent-dim); box-shadow: 0 6px 30px rgba(59,130,246,.35); }

.btn-secondary {
  background: transparent;
  color: var(--c-accent);
  border: 1.5px solid var(--c-accent);
}
.btn-secondary:hover { background: var(--c-accent-glow); }

.btn-ghost {
  background: rgba(255,255,255,.1);
  color: var(--c-light);
  border: 1.5px solid rgba(255,255,255,.2);
}
.btn-ghost:hover { background: rgba(255,255,255,.18); }

.btn-lg { padding: 15px 32px; font-size: 1rem; }
.btn-full { width: 100%; justify-content: center; }

/* ══════════════════════════════════════════════
   HERO
══════════════════════════════════════════════ */
.hero {
  position: relative;
  background: var(--c-dark);
  color: var(--c-text-light);
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Animated grid background */
.hero-bg {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(ellipse 80% 60% at 60% 30%, rgba(59,130,246,.12) 0%, transparent 70%),
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 100% 100%, 48px 48px, 48px 48px;
  pointer-events: none;
}

.hero-inner {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
  padding-top: 100px;
  padding-bottom: 48px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: var(--r-full);
  background: rgba(59,130,246,.15);
  border: 1px solid rgba(59,130,246,.3);
  font-size: .78rem;
  font-weight: 600;
  color: #93c5fd;
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.13;
  letter-spacing: -.03em;
  margin-bottom: 20px;
}
.accent { color: var(--c-accent); }
.hero p {
  font-size: 1.05rem;
  color: var(--c-text-dim);
  max-width: 480px;
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }

/* Orbit animation */
.hero-visual { display: flex; align-items: center; justify-content: center; }
.orbit {
  position: relative;
  width: 320px;
  height: 320px;
}
.orbit-core {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 80px; height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-accent), var(--c-teal));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; font-weight: 800; color: #fff;
  box-shadow: 0 0 40px rgba(59,130,246,.4);
  z-index: 2;
}
.orbit-ring {
  position: absolute;
  top: 50%; left: 50%;
  border-radius: 50%;
  border: 1px solid var(--c-dark-border);
  animation: spin linear infinite;
}
.ring-1 { width: 140px; height: 140px; margin: -70px 0 0 -70px; animation-duration: 8s; }
.ring-2 { width: 210px; height: 210px; margin: -105px 0 0 -105px; animation-duration: 14s; animation-direction: reverse; }
.ring-3 { width: 290px; height: 290px; margin: -145px 0 0 -145px; animation-duration: 20s; }
.orbit-dot {
  position: absolute;
  top: -18px; left: 50%; margin-left: -18px;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--c-dark-2);
  border: 1px solid rgba(59,130,246,.4);
  display: flex; align-items: center; justify-content: center;
  color: var(--c-accent);
  font-size: .85rem;
}
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

/* Compensate dot rotation */
.orbit-ring .orbit-dot { animation: unspin linear infinite; }
.ring-1 .orbit-dot { animation-duration: 8s; }
.ring-2 .orbit-dot { animation-duration: 14s; animation-direction: reverse; }
.ring-3 .orbit-dot { animation-duration: 20s; }
@keyframes unspin { from { transform: rotate(0deg); } to { transform: rotate(-360deg); } }
.ring-2 .orbit-dot { animation-name: unspinR; }
@keyframes unspinR { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

/* Hero stats bar */
.hero-stats {
  border-top: 1px solid var(--c-dark-border);
  padding: 28px 0;
  background: rgba(255,255,255,.02);
}
.hero-stats-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}
.stat {
  display: flex; flex-direction: column; align-items: center;
  padding: 8px 40px;
}
.stat-num { font-size: 1.5rem; font-weight: 800; color: var(--c-light); letter-spacing: -.02em; }
.stat-label { font-size: .75rem; color: var(--c-text-dim); margin-top: 2px; }
.stat-divider { width: 1px; height: 36px; background: var(--c-dark-border); }

/* ══════════════════════════════════════════════
   SECTIONS
══════════════════════════════════════════════ */
.section { padding: var(--section-py) 0; }
.section-light { background: var(--c-light); }
.section-alt   { background: var(--c-light-alt); }
.section-dark  { background: var(--c-dark); color: var(--c-text-light); }

.section-label {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 12px;
}
.section-dark .section-label { color: var(--c-teal); }

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.2;
  margin-bottom: 14px;
}
.section-dark .section-title { color: var(--c-light); }

.section-subtitle {
  font-size: 1.05rem;
  color: var(--c-text-muted);
  max-width: 560px;
  margin-bottom: 56px;
}
.section-dark .section-subtitle { color: var(--c-text-dim); }

.section-cta { text-align: center; margin-top: 48px; }

/* ══════════════════════════════════════════════
   NEXUS COMPARISON TABLE
══════════════════════════════════════════════ */
.nexus-comparison { margin-top: 64px; margin-bottom: 48px; }
.nexus-comparison h3 {
  font-size: 1.3rem; font-weight: 700;
  color: var(--c-light);
  margin-bottom: 24px; text-align: center;
}
.comparison-table {
  border: 1px solid var(--c-dark-border);
  border-radius: var(--r-md);
  overflow: hidden;
}
.comparison-header,
.comparison-row {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  border-bottom: 1px solid var(--c-dark-border);
}
.comparison-row:last-child { border-bottom: none; }
.comparison-header { background: rgba(255,255,255,.04); }
.col-label {
  padding: 14px 20px;
  font-size: .78rem; font-weight: 700;
  letter-spacing: .06em; text-transform: uppercase;
  text-align: center;
}
.col-standard { color: var(--c-text-dim); }
.col-nexus    { color: var(--c-teal); }
.comparison-row span {
  padding: 14px 20px;
  font-size: .85rem;
  display: flex; align-items: center;
}
.row-label {
  color: var(--c-text-dim); font-weight: 600;
}
.comparison-row .col-standard { color: var(--c-text-dim); justify-content: center; text-align: center; }
.comparison-row .col-nexus    { color: var(--c-text-dim); justify-content: center; text-align: center; }
.comparison-row .col-nexus.highlight {
  color: var(--c-teal); font-weight: 600;
  background: rgba(20,184,166,.06);
}
.comparison-row:nth-child(odd) { background: rgba(255,255,255,.02); }

/* 6-column use cases for NEXUS */
.usecases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}

/* ══════════════════════════════════════════════
   ABOUT
══════════════════════════════════════════════ */
.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 48px;
}
.about-card {
  background: var(--c-light-alt);
  border: 1px solid var(--c-light-border);
  border-radius: var(--r-lg);
  padding: 32px;
  transition: transform .2s, box-shadow .2s;
}
.about-card:hover { transform: translateY(-4px); box-shadow: var(--sh-md); }
.about-icon {
  width: 48px; height: 48px;
  border-radius: var(--r-md);
  background: var(--c-accent-glow);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  color: var(--c-accent);
  margin-bottom: 20px;
}
.about-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 12px; }
.about-card p { color: var(--c-text-muted); font-size: .9rem; line-height: 1.75; }

/* ══════════════════════════════════════════════
   SERVICES GRID
══════════════════════════════════════════════ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}
.service-card {
  background: var(--c-light);
  border: 1px solid var(--c-light-border);
  border-radius: var(--r-md);
  padding: 28px 24px;
  transition: transform .2s, box-shadow .2s, border-color .2s;
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-teal));
  opacity: 0;
  transition: opacity .2s;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--sh-md); }
.service-card:hover::before { opacity: 1; }
.service-icon {
  width: 44px; height: 44px;
  border-radius: var(--r-sm);
  background: var(--c-accent-glow);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.05rem;
  color: var(--c-accent);
  margin-bottom: 16px;
}
.service-card h3 { font-size: .95rem; font-weight: 700; margin-bottom: 10px; }
.service-card p { font-size: .83rem; color: var(--c-text-muted); margin-bottom: 16px; line-height: 1.7; }
.feature-list { padding-left: 0; }
.feature-list li {
  font-size: .8rem;
  color: var(--c-text-muted);
  padding: 3px 0 3px 16px;
  position: relative;
}
.feature-list li::before {
  content: '→';
  position: absolute; left: 0;
  color: var(--c-accent);
  font-size: .75rem;
}

/* inGPT teaser */
.ingpt-teaser {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  background: linear-gradient(135deg, var(--c-dark-2), var(--c-dark-3));
  border: 1px solid rgba(59,130,246,.25);
  border-radius: var(--r-lg);
  padding: 36px 40px;
  color: var(--c-text-light);
  flex-wrap: wrap;
}
.ingpt-teaser h3 { font-size: 1.25rem; font-weight: 700; margin: 8px 0 10px; }
.ingpt-teaser p  { font-size: .9rem; color: var(--c-text-dim); max-width: 500px; }

/* ══════════════════════════════════════════════
   inGPT SECTION
══════════════════════════════════════════════ */
.ingpt-intro {
  max-width: 760px;
  margin: 0 auto 56px;
  text-align: center;
  font-size: 1.05rem;
  color: var(--c-text-dim);
  line-height: 1.8;
}
.ingpt-intro strong { color: var(--c-light); }

/* Pillars */
.ingpt-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}
.pillar {
  background: rgba(255,255,255,.04);
  border: 1px solid var(--c-dark-border);
  border-radius: var(--r-md);
  padding: 32px 28px;
  text-align: center;
  transition: background .2s, border-color .2s;
}
.pillar:hover { background: rgba(255,255,255,.07); border-color: rgba(59,130,246,.3); }
.pillar-icon {
  width: 52px; height: 52px;
  border-radius: var(--r-md);
  background: rgba(20,184,166,.15);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; color: var(--c-teal);
  margin: 0 auto 20px;
}
.pillar h4 { font-size: 1rem; font-weight: 700; color: var(--c-light); margin-bottom: 10px; }
.pillar p  { font-size: .875rem; color: var(--c-text-dim); line-height: 1.7; }

/* Workflow */
.ingpt-workflow { margin-bottom: 64px; }
.ingpt-workflow h3,
.ingpt-benefits h3,
.ingpt-usecases h3 {
  font-size: 1.3rem; font-weight: 700;
  color: var(--c-light);
  margin-bottom: 28px;
  text-align: center;
}
.workflow-steps {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  flex-wrap: wrap;
}
.workflow-step {
  flex: 1;
  min-width: 160px;
  background: rgba(255,255,255,.03);
  border: 1px solid var(--c-dark-border);
  border-radius: var(--r-md);
  padding: 24px 20px;
}
.step-num {
  font-size: 1.75rem; font-weight: 900;
  color: var(--c-accent);
  opacity: .6;
  margin-bottom: 10px;
  line-height: 1;
}
.workflow-step h4 { font-size: .9rem; font-weight: 700; color: var(--c-light); margin-bottom: 8px; }
.workflow-step p  { font-size: .82rem; color: var(--c-text-dim); line-height: 1.6; }
.workflow-arrow {
  color: var(--c-text-dim);
  font-size: .8rem;
  padding-top: 32px;
  flex-shrink: 0;
}

/* Benefits */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 64px;
}
.benefit {
  display: flex; align-items: flex-start; gap: 16px;
  background: rgba(255,255,255,.03);
  border: 1px solid var(--c-dark-border);
  border-radius: var(--r-md);
  padding: 22px 20px;
}
.benefit > i {
  font-size: 1.2rem; color: var(--c-teal);
  margin-top: 2px; flex-shrink: 0;
}
.benefit h4 { font-size: .9rem; font-weight: 700; color: var(--c-light); margin-bottom: 4px; }
.benefit p  { font-size: .82rem; color: var(--c-text-dim); line-height: 1.6; }

/* Use cases */
.usecases-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}
.usecase {
  background: rgba(255,255,255,.03);
  border: 1px solid var(--c-dark-border);
  border-radius: var(--r-md);
  padding: 22px 18px;
  text-align: center;
}
.usecase i { font-size: 1.4rem; color: var(--c-teal); margin-bottom: 14px; display: block; }
.usecase h4 { font-size: .82rem; font-weight: 700; color: var(--c-light); margin-bottom: 8px; }
.usecase p  { font-size: .78rem; color: var(--c-text-dim); line-height: 1.6; }

.ingpt-cta { text-align: center; }

/* ══════════════════════════════════════════════
   LEADERSHIP
══════════════════════════════════════════════ */
.leader-card {
  background: var(--c-light-alt);
  border: 1px solid var(--c-light-border);
  border-radius: var(--r-lg);
  overflow: hidden;
  margin-top: 48px;
}
.leader-header {
  display: flex;
  align-items: flex-start;
  gap: 28px;
  padding: 36px 40px;
  background: linear-gradient(135deg, var(--c-dark), var(--c-dark-2));
  color: var(--c-text-light);
}
.leader-avatar {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: rgba(59,130,246,.2);
  border: 2px solid rgba(59,130,246,.4);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem; color: var(--c-accent);
  flex-shrink: 0;
}
.leader-header h3 { font-size: 1.4rem; font-weight: 800; margin-bottom: 4px; }
.leader-title { font-size: .9rem; color: var(--c-text-dim); margin-bottom: 16px; }
.leader-credentials { display: flex; flex-direction: column; gap: 6px; }
.leader-credentials span {
  font-size: .8rem; color: var(--c-text-dim);
  display: flex; align-items: center; gap: 8px;
}
.leader-credentials i { color: var(--c-teal); font-size: .75rem; }
.leader-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}
.leader-bio, .leader-message {
  padding: 36px 40px;
  border-top: 1px solid var(--c-light-border);
}
.leader-bio { border-right: 1px solid var(--c-light-border); }
.leader-bio h4, .leader-message h4 {
  font-size: 1rem; font-weight: 700;
  margin-bottom: 16px; color: var(--c-text-dark);
}
.leader-bio p { font-size: .875rem; color: var(--c-text-muted); margin-bottom: 14px; line-height: 1.75; }
.leader-message blockquote {
  font-size: .9rem;
  color: var(--c-text-muted);
  line-height: 1.8;
  border-left: 3px solid var(--c-accent);
  padding-left: 20px;
  font-style: italic;
}

/* ══════════════════════════════════════════════
   BLOG
══════════════════════════════════════════════ */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.blog-grid-full { margin-top: 0; }
.blog-card {
  background: var(--c-light);
  border: 1px solid var(--c-light-border);
  border-radius: var(--r-md);
  padding: 28px;
  display: flex; flex-direction: column; gap: 10px;
  transition: transform .2s, box-shadow .2s;
}
.section-alt .blog-card { background: var(--c-light); }
.blog-card:hover { transform: translateY(-3px); box-shadow: var(--sh-md); }
.blog-card time { font-size: .78rem; color: var(--c-text-muted); }
.blog-card h3, .blog-card h2 {
  font-size: 1.05rem; font-weight: 700; line-height: 1.4;
}
.blog-card h2 { font-size: 1.15rem; }
.blog-card h3 a, .blog-card h2 a { color: var(--c-text-dark); transition: color .15s; }
.blog-card h3 a:hover, .blog-card h2 a:hover { color: var(--c-accent); }
.blog-card p { font-size: .875rem; color: var(--c-text-muted); flex: 1; line-height: 1.7; }
.post-tag {
  display: inline-block;
  font-size: .7rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .06em;
  background: var(--c-accent-glow);
  color: var(--c-accent);
  padding: 3px 10px;
  border-radius: var(--r-full);
}
.read-more {
  font-size: .82rem; font-weight: 600;
  color: var(--c-accent);
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: auto;
  transition: gap .2s;
}
.read-more:hover { gap: 10px; }
.blog-empty {
  text-align: center; color: var(--c-text-muted);
  font-size: .95rem; padding: 32px;
}

/* Blog listing page */
.blog-page .page-header {
  background: var(--c-dark);
  color: var(--c-text-light);
  padding: clamp(80px, 10vw, 120px) 0 clamp(40px, 5vw, 64px);
}
.blog-page .page-header h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800; letter-spacing: -.03em;
  margin-bottom: 12px;
}
.blog-page .page-header p { color: var(--c-text-dim); max-width: 500px; }
.blog-listing { padding: 64px var(--pad-x); }
.blog-empty-state {
  text-align: center; padding: 80px 20px;
  color: var(--c-text-muted);
}
.blog-empty-state i { font-size: 2.5rem; color: var(--c-light-border); margin-bottom: 20px; display: block; }
.blog-empty-state h2 { font-size: 1.3rem; margin-bottom: 10px; }
.blog-empty-state p  { margin-bottom: 24px; }

/* Blog post page */
.post-page .post-header {
  background: var(--c-dark);
  color: var(--c-text-light);
  padding: clamp(80px, 10vw, 120px) 0 clamp(40px, 5vw, 64px);
}
.back-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .85rem; color: var(--c-text-dim);
  margin-bottom: 20px;
  transition: color .15s;
}
.back-link:hover { color: var(--c-light); }
.post-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.post-meta time { font-size: .82rem; color: var(--c-text-dim); }
.post-title {
  font-size: clamp(1.7rem, 3.5vw, 2.5rem);
  font-weight: 800; letter-spacing: -.03em;
  max-width: 760px; line-height: 1.2;
}
.post-lead {
  font-size: 1.05rem; color: var(--c-text-dim);
  max-width: 640px; margin-top: 12px; line-height: 1.7;
}
.post-body { padding: 64px 0; }
.post-content {
  max-width: 720px;
  font-size: .95rem; line-height: 1.85; color: var(--c-text-dark);
}
.post-content h2 { font-size: 1.4rem; font-weight: 700; margin: 36px 0 14px; }
.post-content h3 { font-size: 1.15rem; font-weight: 700; margin: 28px 0 10px; }
.post-content p  { margin-bottom: 20px; }
.post-content ul, .post-content ol { padding-left: 24px; margin-bottom: 20px; }
.post-content li { margin-bottom: 8px; }
.post-content a  { color: var(--c-accent); text-decoration: underline; }
.post-content strong { font-weight: 700; }
.post-content em   { font-style: italic; }
.post-footer { margin-top: 56px; }

/* ══════════════════════════════════════════════
   CONTACT
══════════════════════════════════════════════ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 64px;
  align-items: start;
  margin-top: 48px;
}
.contact-info > p { font-size: .95rem; color: var(--c-text-muted); margin-bottom: 32px; }
.contact-features { display: flex; flex-direction: column; gap: 14px; margin-bottom: 28px; }
.contact-feat {
  display: flex; align-items: center; gap: 12px;
  font-size: .9rem; font-weight: 500;
}
.contact-feat i { color: var(--c-accent); font-size: .95rem; width: 20px; text-align: center; }
.contact-note {
  display: flex; align-items: center; gap: 10px;
  font-size: .82rem; color: var(--c-text-muted);
  background: var(--c-light-alt);
  border: 1px solid var(--c-light-border);
  border-radius: var(--r-sm);
  padding: 12px 16px;
}
.contact-note i { color: var(--c-accent); }

/* Form */
.contact-form {
  background: var(--c-light-alt);
  border: 1px solid var(--c-light-border);
  border-radius: var(--r-lg);
  padding: 36px;
  display: flex; flex-direction: column; gap: 20px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: .82rem; font-weight: 600; color: var(--c-text-dark); }
.required { color: var(--c-accent); }
.form-group input,
.form-group select,
.form-group textarea {
  padding: 11px 14px;
  border: 1.5px solid var(--c-light-border);
  border-radius: var(--r-sm);
  font: inherit;
  font-size: .9rem;
  background: var(--c-light);
  color: var(--c-text-dark);
  transition: border-color .2s, box-shadow .2s;
  width: 100%;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px var(--c-accent-glow);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-success, .form-error {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 18px;
  border-radius: var(--r-sm);
  font-size: .875rem; font-weight: 500;
}
.form-success { background: rgba(16,185,129,.1); color: var(--c-success); border: 1px solid rgba(16,185,129,.25); }
.form-error   { background: rgba(239,68,68,.08); color: var(--c-error);   border: 1px solid rgba(239,68,68,.2); }

/* ══════════════════════════════════════════════
   BADGES
══════════════════════════════════════════════ */
.badge { display: inline-block; font-size: .7rem; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; padding: 4px 12px; border-radius: var(--r-full); }
.badge-accent { background: var(--c-accent-glow); color: #93c5fd; border: 1px solid rgba(59,130,246,.25); }

/* ══════════════════════════════════════════════
   PAGE HEADER (static pages)
══════════════════════════════════════════════ */
.page-header {
  background: var(--c-dark);
  color: var(--c-text-light);
  padding: clamp(80px, 10vw, 120px) 0 clamp(40px, 5vw, 64px);
}
.page-header .section-label { color: var(--c-teal); }
.page-header h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800; letter-spacing: -.03em;
  margin-bottom: 12px;
}
.page-header p { color: var(--c-text-dim); }

/* Privacy page prose */
.prose {
  max-width: 760px;
  font-size: .95rem; line-height: 1.85;
  color: var(--c-text-dark);
}
.prose h2 { font-size: 1.3rem; font-weight: 700; margin: 40px 0 12px; padding-top: 8px; border-top: 1px solid var(--c-light-border); }
.prose h3 { font-size: 1.05rem; font-weight: 700; margin: 24px 0 8px; }
.prose p  { margin-bottom: 16px; }
.prose a  { color: var(--c-accent); }

/* ══════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════ */
.footer { background: var(--c-dark); color: var(--c-text-dim); }
.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 64px;
  padding-top: 64px;
  padding-bottom: 48px;
  align-items: start;
}
.footer-brand .brand-name { font-size: 1.2rem; font-weight: 800; color: var(--c-light); }
.footer-brand p { font-size: .85rem; margin-top: 12px; max-width: 280px; line-height: 1.7; }
.footer-links { display: flex; gap: 48px; }
.footer-col h4 {
  font-size: .75rem; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase;
  color: var(--c-light); margin-bottom: 16px;
}
.footer-col li { margin-bottom: 10px; }
.footer-col a { font-size: .85rem; color: var(--c-text-dim); transition: color .15s; }
.footer-col a:hover { color: var(--c-light); }
.footer-bottom {
  border-top: 1px solid var(--c-dark-border);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap; gap: 8px;
}
.footer-bottom .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; width: 100%; }
.footer-bottom p { font-size: .8rem; color: var(--c-text-dim); }
.footer-tagline { font-style: italic; }

/* ══════════════════════════════════════════════
   FADE-UP ANIMATION
══════════════════════════════════════════════ */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .55s ease, transform .55s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ══════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════ */
@media (max-width: 1100px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .usecases-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-text p, .hero-cta { margin-inline: auto; }
  .hero-cta { justify-content: center; }
  .hero-visual { display: none; }
  .about-grid { grid-template-columns: 1fr; }
  .ingpt-pillars { grid-template-columns: 1fr; }
  .benefits-grid { grid-template-columns: 1fr 1fr; }
  .leader-body { grid-template-columns: 1fr; }
  .leader-bio { border-right: none; border-bottom: 1px solid var(--c-light-border); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-links { flex-wrap: wrap; gap: 32px; }
  .blog-grid { grid-template-columns: 1fr 1fr; }
  .workflow-steps { flex-direction: column; }
  .workflow-arrow { display: none; }
}

@media (max-width: 680px) {
  .nav-links { display: none; flex-direction: column; gap: 4px; }
  .nav-links.open {
    display: flex;
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: rgba(6,14,30,.97);
    backdrop-filter: blur(16px);
    padding: 20px var(--pad-x) 28px;
    border-bottom: 1px solid var(--c-dark-border);
  }
  .nav-links.open a { padding: 10px 12px; font-size: .95rem; }
  .nav-toggle { display: flex; }
  .services-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .benefits-grid, .usecases-grid { grid-template-columns: 1fr; }
  .hero-stats-inner { flex-direction: column; gap: 0; }
  .stat-divider { width: 40px; height: 1px; }
  .blog-grid { grid-template-columns: 1fr; }
  .ingpt-teaser { flex-direction: column; }
  .leader-header { flex-direction: column; }
}