/* ============================================================
   THE DATATECH — Design Tokens
   ============================================================ */
:root {
  --navy: #102A43;
  --navy-700: #1A3A5C;
  --navy-600: #234876;
  --teal: #007C83;
  --teal-600: #00666C;
  --teal-100: #E1F1F1;
  --orange: #F58220;
  --orange-600: #DB6D10;
  --ice: #F5F8FA;
  --white: #FFFFFF;
  --charcoal: #1F2933;
  --gray-700: #3E4C59;
  --gray-500: #7B8794;
  --gray-300: #CBD2D9;
  --gray-200: #E4E7EB;
  --gray-100: #F0F4F8;

  --font-sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 999px;

  --shadow-sm: 0 1px 2px rgba(16, 42, 67, 0.06);
  --shadow-md: 0 8px 24px rgba(16, 42, 67, 0.08);
  --shadow-lg: 0 20px 48px rgba(16, 42, 67, 0.14);

  --container: 1200px;
  --section-y: 96px;
}

@media (max-width: 768px) {
  :root { --section-y: 64px; }
}

/* ============================================================
   Reset & Base
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--charcoal);
  background: var(--white);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p { margin: 0; }
button { font-family: inherit; cursor: pointer; }
.icon { width: 1em; height: 1em; flex-shrink: 0; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: var(--section-y) 0; }
.section--tight { padding: 56px 0; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
}
.eyebrow--inverse { color: #7FE3D6; }

.section-head { max-width: 760px; margin: 0 0 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
h2.section-title {
  font-size: clamp(28px, 3.4vw, 38px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--navy);
  margin-top: 12px;
}
.section-sub {
  margin-top: 16px;
  font-size: 17px;
  color: var(--gray-700);
  line-height: 1.65;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 15px;
  border: 1.5px solid transparent;
  transition: transform 150ms ease, box-shadow 150ms ease, background-color 150ms ease, color 150ms ease, border-color 150ms ease;
  white-space: nowrap;
}
.btn .icon { width: 18px; height: 18px; }
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--orange);
  color: var(--white);
  box-shadow: 0 8px 20px rgba(245, 130, 32, 0.32);
}
.btn-primary:hover { background: var(--orange-600); box-shadow: 0 10px 26px rgba(245, 130, 32, 0.4); }

.btn-outline-inverse {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.35);
}
.btn-outline-inverse:hover { background: rgba(255, 255, 255, 0.08); border-color: rgba(255, 255, 255, 0.6); }

.btn-outline {
  background: transparent;
  color: var(--navy);
  border-color: var(--gray-300);
}
.btn-outline:hover { border-color: var(--navy); background: var(--gray-100); }

.btn-text {
  padding: 0;
  border-radius: 0;
  color: var(--teal);
  font-weight: 600;
  font-size: 15px;
}
.btn-text .icon { width: 16px; height: 16px; transition: transform 150ms ease; }
.btn-text:hover .icon { transform: translateX(3px); }

.btn-sm { padding: 10px 18px; font-size: 14px; }

/* ============================================================
   Header / Nav
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(16, 42, 67, 0.97);
  backdrop-filter: blur(8px);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 19px;
  color: var(--white);
  text-decoration: none;
}
.brand-logo {
  height: 44px;
  width: auto;
  object-fit: contain;
  background: #ffffff;
  padding: 4px 10px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.brand:hover .brand-logo {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}
.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--teal), var(--orange));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 800;
  font-size: 15px;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-menu > li > a {
  display: block;
  padding: 10px 16px;
  font-size: 14.5px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.82);
  border-radius: var(--radius-full);
  transition: background-color 150ms ease, color 150ms ease;
}
.nav-menu > li > a:hover { color: var(--white); background: rgba(255, 255, 255, 0.08); }
.nav-menu > li.active > a { color: var(--white); background: rgba(255, 255, 255, 0.1); }

.nav-item { position: relative; }
.nav-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 280px;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 10px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 160ms ease, transform 160ms ease, visibility 160ms;
}
.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-dropdown a {
  display: block;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--charcoal);
}
.nav-dropdown a:hover,
.nav-dropdown a.active { background: var(--gray-100); color: var(--teal-600); font-weight: 600; }

@media (max-width: 960px) {
  .nav-dropdown { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; background: transparent; display: none; padding-left: 8px; }
  .nav-item.open .nav-dropdown { display: block; }
}

.nav-actions { display: flex; align-items: center; gap: 12px; }
.lang-switch {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.7);
  padding: 8px 11px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.18);
  transition: background-color 150ms ease, color 150ms ease, border-color 150ms ease;
}
.lang-switch:hover { color: var(--white); background: rgba(255, 255, 255, 0.08); border-color: rgba(255, 255, 255, 0.32); }
.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--white);
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
}
.nav-toggle .icon { width: 24px; height: 24px; }

@media (max-width: 960px) {
  .nav-menu { display: none; }
  .nav-toggle { display: flex; }
  .site-header.nav-open .nav-menu {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--navy);
    padding: 8px 24px 20px;
    gap: 2px;
    box-shadow: var(--shadow-lg);
  }
  .site-header.nav-open .nav-menu > li > a { padding: 12px 8px; }
  .nav-actions .btn-primary { padding: 10px 18px; font-size: 14px; }
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  background: radial-gradient(120% 140% at 85% -10%, #1B4A72 0%, var(--navy) 45%, #0B1E33 100%);
  color: var(--white);
  overflow: hidden;
  padding: 88px 0 100px;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(0, 124, 131, 0.35) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: 0.35;
  mask-image: linear-gradient(to bottom, black, transparent 75%);
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}
.hero-content h1 {
  margin-top: 14px;
  font-size: clamp(32px, 4.2vw, 48px);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.015em;
}
.hero-sub {
  margin-top: 20px;
  font-size: 18px;
  line-height: 1.7;
  color: rgba(245, 248, 250, 0.82);
  max-width: 560px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.trust-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 40px;
}
.trust-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 500;
  color: rgba(245, 248, 250, 0.75);
}
.trust-chip .icon { width: 16px; height: 16px; color: #7FE3D6; }

/* Hero visual: radial network diagram */
.hero-visual {
  position: relative;
  height: 460px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hv-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.hv-ring--1 { width: 420px; height: 420px; }
.hv-ring--2 { width: 300px; height: 300px; border-color: rgba(255, 255, 255, 0.16); }
.hv-core {
  position: relative;
  z-index: 2;
  width: 190px;
  height: 190px;
  border-radius: 50%;
  background: linear-gradient(160deg, #16324F, #0E2338);
  border: 1px solid rgba(127, 227, 214, 0.35);
  box-shadow: 0 0 0 10px rgba(0, 124, 131, 0.08), var(--shadow-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 6px;
  padding: 12px;
}
.hv-core-logo {
  max-width: 140px;
  height: auto;
  max-height: 54px;
  object-fit: contain;
  background: #ffffff;
  padding: 4px 10px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  margin-bottom: 4px;
}
.hv-core-sub { font-size: 11.5px; color: rgba(245, 248, 250, 0.65); line-height: 1.4; }

.hv-node {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 42, 67, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.14);
  padding: 10px 14px;
  border-radius: var(--radius-full);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--white);
  box-shadow: var(--shadow-md);
  white-space: nowrap;
}
.hv-node .icon { width: 16px; height: 16px; color: var(--orange); }
.hv-node--n { top: 0; left: 50%; transform: translate(-50%, -10%); }
.hv-node--e { right: -6%; top: 50%; transform: translateY(-50%); }
.hv-node--s { bottom: 0; left: 50%; transform: translate(-50%, 10%); }
.hv-node--w { left: -6%; top: 50%; transform: translateY(-50%); }

@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { height: 380px; }
  .hv-node { font-size: 11.5px; padding: 8px 12px; }
}
@media (max-width: 560px) {
  .hero-visual { display: none; }
}

/* ============================================================
   Trust / fallback bar
   ============================================================ */
.trustbar { background: var(--ice); padding: 44px 0; border-bottom: 1px solid var(--gray-200); }
.trustbar-label {
  text-align: center;
  font-size: 14px;
  color: var(--gray-500);
  font-weight: 500;
  max-width: 680px;
  margin: 0 auto;
}
.trustbar-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 20px;
}
.trustbar-tag {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--navy);
  background: var(--white);
  border: 1px solid var(--gray-200);
  padding: 8px 16px;
  border-radius: var(--radius-full);
}

/* ============================================================
   Problem section
   ============================================================ */
.section--ice { background: var(--ice); }
.gap-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.gap-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 26px 22px;
}
.gap-card .icon-badge { color: var(--orange); }
.gap-card h3 { margin-top: 16px; font-size: 16px; font-weight: 700; color: var(--navy); line-height: 1.4; }
.gap-card p { margin-top: 10px; font-size: 14.5px; color: var(--gray-700); line-height: 1.6; }

.icon-badge {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--teal-100);
  color: var(--teal);
  display: flex;
  align-items: center;
  justify-content: center;
}
.icon-badge .icon { width: 22px; height: 22px; }
.icon-badge--navy { background: var(--navy); color: #7FE3D6; }
.icon-badge--orange { background: #FEF0E2; color: var(--orange); }

/* ============================================================
   Solutions (3 pillars)
   ============================================================ */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.solution-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: box-shadow 200ms ease, transform 200ms ease, border-color 200ms ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.solution-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: transparent; }
.solution-card h3 { margin-top: 20px; font-size: 19px; font-weight: 700; color: var(--navy); line-height: 1.4; }
.solution-card .promise { margin-top: 10px; font-size: 14.5px; color: var(--gray-700); line-height: 1.65; }
.solution-card .usecases {
  margin-top: 16px;
  font-size: 13px;
  color: var(--teal-600);
  font-weight: 600;
  line-height: 1.6;
}
.solution-card .btn-text { margin-top: 20px; }

/* ============================================================
   How it works — flow
   ============================================================ */
.flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  position: relative;
  counter-reset: flow;
}
.flow-step { text-align: center; padding: 0 8px; }
.flow-num {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  position: relative;
}
.flow-num .icon { width: 24px; height: 24px; color: #7FE3D6; }
.flow-connector {
  position: absolute;
  top: 26px;
  left: calc(10% + 26px);
  right: calc(10% + 26px);
  height: 1px;
  background: repeating-linear-gradient(to right, var(--gray-300) 0 6px, transparent 6px 12px);
  z-index: -1;
}
.flow-step h4 { margin-top: 16px; font-size: 14.5px; font-weight: 700; color: var(--navy); }
.flow-step p { margin-top: 8px; font-size: 13.5px; color: var(--gray-700); line-height: 1.55; }
.flow-microcopy {
  text-align: center;
  margin-top: 40px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--teal);
}

@media (max-width: 900px) {
  .flow { grid-template-columns: repeat(2, 1fr); gap: 32px 16px; }
  .flow-connector { display: none; }
}

/* ============================================================
   Framework strip (Discover → Design → Pilot → ...)
   ============================================================ */
.framework-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}
.framework-pill {
  padding: 13px 22px;
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 14.5px;
  white-space: nowrap;
}
.framework-arrow { color: var(--gray-300); width: 20px; height: 20px; flex-shrink: 0; }

/* ============================================================
   Signal groups (behavioral data)
   ============================================================ */
.signal-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.signal-card {
  background: var(--navy);
  border-radius: var(--radius-lg);
  padding: 24px 22px;
  color: var(--white);
}
.signal-card .icon-badge { background: rgba(127, 227, 214, 0.14); color: #7FE3D6; }
.signal-card h3 { margin-top: 16px; font-size: 15.5px; font-weight: 700; }
.signal-card p { margin-top: 8px; font-size: 13.5px; color: rgba(245, 248, 250, 0.72); line-height: 1.6; }

/* ============================================================
   Business value
   ============================================================ */
.value-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
}
.value-card { text-align: center; }
.value-card .icon-badge { margin: 0 auto; }
.value-card h4 { margin-top: 14px; font-size: 14.5px; font-weight: 700; color: var(--navy); line-height: 1.4; }
.value-card p { margin-top: 8px; font-size: 13px; color: var(--gray-700); line-height: 1.55; }

/* ============================================================
   Two audiences
   ============================================================ */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.audience-card {
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  border: 1px solid var(--gray-200);
}
.audience-card--navy { background: var(--navy); color: var(--white); border: none; }
.audience-card--navy p { color: rgba(245, 248, 250, 0.78); }
.audience-card--navy h3 { color: var(--white); }
.audience-card h3 { font-size: 20px; font-weight: 700; color: var(--navy); margin-top: 18px; line-height: 1.4; }
.audience-card p { margin-top: 12px; font-size: 15px; color: var(--gray-700); line-height: 1.7; }
.audience-card .btn { margin-top: 24px; }

/* ============================================================
   Security section
   ============================================================ */
.security-section { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.security-list { margin-top: 24px; display: flex; flex-direction: column; gap: 14px; }
.security-list li { display: flex; align-items: flex-start; gap: 12px; font-size: 15px; color: var(--gray-700); }
.security-list .icon { width: 20px; height: 20px; color: var(--teal); margin-top: 2px; flex-shrink: 0; }
.security-visual {
  background: var(--navy);
  border-radius: var(--radius-lg);
  padding: 40px;
  color: var(--white);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.security-visual .mini {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 18px;
}
.security-visual .mini .icon { width: 22px; height: 22px; color: #7FE3D6; }
.security-visual .mini h5 { margin-top: 12px; font-size: 13.5px; font-weight: 700; }
.security-visual .mini p { margin-top: 6px; font-size: 12px; color: rgba(245, 248, 250, 0.65); line-height: 1.5; }

@media (max-width: 900px) {
  .security-section { grid-template-columns: 1fr; }
}

/* ============================================================
   Pilot process
   ============================================================ */
.pilot-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
}
.pilot-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
}
.pilot-step-num {
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: 0.04em;
}
.pilot-card h4 { margin-top: 10px; font-size: 15px; font-weight: 700; color: var(--navy); line-height: 1.4; }
.pilot-card p { margin-top: 8px; font-size: 13.5px; color: var(--gray-700); line-height: 1.55; }
.pilot-card .output {
  margin-top: 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--teal-600);
  background: var(--teal-100);
  display: inline-block;
  padding: 5px 10px;
  border-radius: var(--radius-full);
}

/* ============================================================
   Final CTA banner
   ============================================================ */
.cta-banner {
  background: linear-gradient(120deg, var(--navy) 0%, #0B2036 100%);
  border-radius: var(--radius-lg);
  padding: 56px;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 32px;
  align-items: center;
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.cta-banner::after {
  content: '';
  position: absolute;
  right: -80px;
  top: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 130, 32, 0.35), transparent 70%);
}
.cta-banner h2 { font-size: clamp(24px, 2.8vw, 30px); font-weight: 700; line-height: 1.3; }
.cta-banner p { margin-top: 14px; color: rgba(245, 248, 250, 0.78); font-size: 15.5px; line-height: 1.65; max-width: 480px; }
.cta-banner-actions { display: flex; flex-direction: column; gap: 12px; align-items: flex-start; position: relative; z-index: 1; }
.cta-banner-actions .btn { width: 100%; justify-content: center; }

@media (max-width: 860px) {
  .cta-banner { grid-template-columns: 1fr; padding: 40px 28px; }
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer { background: var(--navy); color: rgba(245, 248, 250, 0.72); padding: 72px 0 0; }
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr repeat(2, 1fr);
  gap: 32px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-brand .brand { color: var(--white); }
.footer-brand p { margin-top: 16px; font-size: 14px; line-height: 1.7; max-width: 280px; }
.footer-social { display: flex; gap: 10px; margin-top: 20px; }
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 150ms ease;
}
.footer-social a:hover { background: rgba(255, 255, 255, 0.18); }
.footer-social .icon { width: 17px; height: 17px; }
.footer-col h5 { color: var(--white); font-size: 13.5px; font-weight: 700; letter-spacing: 0.03em; text-transform: uppercase; margin-bottom: 18px; }
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col a { font-size: 14px; transition: color 150ms ease; }
.footer-col a:hover { color: var(--white); }
.footer-col li.muted { color: rgba(245, 248, 250, 0.5); font-size: 13px; }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  font-size: 13px;
  color: rgba(245, 248, 250, 0.5);
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a:hover { color: var(--white); }

@media (max-width: 960px) {
  .footer-top { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .footer-top { grid-template-columns: 1fr; }
}

/* ============================================================
   Subpage hero (Giải pháp / Nền tảng / etc.)
   ============================================================ */
.subpage-hero {
  position: relative;
  background: radial-gradient(120% 140% at 85% -10%, #1B4A72 0%, var(--navy) 45%, #0B1E33 100%);
  color: var(--white);
  padding: 56px 0 64px;
  overflow: hidden;
}
.subpage-hero .container { max-width: 820px; }
.breadcrumb { font-size: 13px; color: rgba(245, 248, 250, 0.55); margin-bottom: 18px; display: flex; align-items: center; gap: 6px; }
.breadcrumb a { color: rgba(245, 248, 250, 0.8); }
.breadcrumb a:hover { color: var(--white); }
.subpage-hero h1 {
  margin-top: 14px;
  font-size: clamp(28px, 3.8vw, 40px);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.01em;
  max-width: 720px;
}
.subpage-hero .hero-sub { margin-top: 18px; max-width: 620px; }
.subpage-hero .hero-cta { margin-top: 28px; }
.subpage-kicker { margin-top: 8px; font-size: 15px; color: rgba(245, 248, 250, 0.6); max-width: 640px; }

/* ============================================================
   Bullet list (bài toán / use case bullets)
   ============================================================ */
.bullet-list { display: flex; flex-direction: column; gap: 16px; margin-top: 8px; }
.bullet-list li { display: flex; gap: 14px; align-items: flex-start; font-size: 15.5px; color: var(--gray-700); line-height: 1.6; }
.bullet-list .icon { width: 20px; height: 20px; color: var(--orange); flex-shrink: 0; margin-top: 2px; }

/* ============================================================
   Component / module cards
   ============================================================ */
.component-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.component-card { background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius-lg); padding: 26px 24px; }
.component-card h4 { margin-top: 16px; font-size: 15.5px; font-weight: 700; color: var(--navy); line-height: 1.4; }
.component-card p { margin-top: 8px; font-size: 13.5px; color: var(--gray-700); line-height: 1.6; }
.component-card .output-tag {
  margin-top: 14px;
  display: inline-block;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--teal-600);
  background: var(--teal-100);
  padding: 5px 11px;
  border-radius: var(--radius-full);
}

/* ============================================================
   Output / response card (monospace)
   ============================================================ */
.output-card { background: var(--navy); border-radius: var(--radius-lg); padding: 32px 34px; color: var(--white); }
.output-card .label { font-size: 12px; text-transform: uppercase; letter-spacing: 0.07em; color: #7FE3D6; font-weight: 700; margin-bottom: 16px; display: block; }
.output-fields {
  font-family: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13.5px;
  line-height: 2.1;
  color: rgba(245, 248, 250, 0.92);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4px 32px;
}
.output-fields .k { color: #7FE3D6; }
.output-fields-list { display: flex; flex-wrap: wrap; gap: 10px; }
.output-fields-list span {
  font-family: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12.5px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  padding: 7px 12px;
  border-radius: var(--radius-sm);
  color: rgba(245, 248, 250, 0.92);
}
.output-note {
  margin-top: 20px;
  font-size: 13px;
  color: rgba(245, 248, 250, 0.6);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 18px;
  line-height: 1.6;
}

/* ============================================================
   Data table
   ============================================================ */
.table-wrap { overflow-x: auto; border: 1px solid var(--gray-200); border-radius: var(--radius-lg); }
table.data-table { width: 100%; border-collapse: collapse; min-width: 640px; }
table.data-table th { background: var(--navy); color: var(--white); text-align: left; font-size: 13px; font-weight: 600; padding: 14px 22px; letter-spacing: 0.02em; }
table.data-table td { padding: 16px 22px; font-size: 13.5px; color: var(--gray-700); border-top: 1px solid var(--gray-200); vertical-align: top; line-height: 1.55; }
table.data-table tr:nth-child(even) td { background: var(--ice); }
table.data-table td.strong { color: var(--navy); font-weight: 600; }

/* ============================================================
   Numbered vertical steps
   ============================================================ */
.steps-vertical { display: flex; flex-direction: column; }
.steps-vertical li { display: flex; gap: 18px; padding: 20px 0; border-bottom: 1px solid var(--gray-200); }
.steps-vertical li:first-child { padding-top: 0; }
.steps-vertical li:last-child { border-bottom: none; padding-bottom: 0; }
.steps-vertical .num {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--navy); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 14px; flex-shrink: 0;
}
.steps-vertical p { font-size: 15px; color: var(--gray-700); line-height: 1.6; padding-top: 5px; }

/* ============================================================
   Callout / disclaimer
   ============================================================ */
.callout { background: #FEF6EC; border: 1px solid #FBD9AE; border-radius: var(--radius-md); padding: 20px 22px; font-size: 13.5px; color: #7A4A12; line-height: 1.65; display: flex; gap: 14px; }
.callout .icon { width: 18px; height: 18px; flex-shrink: 0; margin-top: 2px; color: var(--orange); }
.callout--quote { background: var(--teal-100); border-color: #B7E1DF; color: var(--teal-600); font-weight: 500; }
.callout--quote .icon { color: var(--teal); }

/* ============================================================
   Layer stack (architecture diagram)
   ============================================================ */
.layer-stack { display: flex; flex-direction: column; gap: 14px; margin-top: 32px; }
.layer-row {
  display: grid;
  grid-template-columns: 56px 1.3fr 1fr;
  gap: 28px;
  align-items: center;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  position: relative;
}
.layer-row:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 27px;
  bottom: -15px;
  width: 2px;
  height: 14px;
  background: var(--gray-300);
}
.layer-num {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--navy); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 15px; flex-shrink: 0;
}
.layer-content h4 { font-size: 15px; font-weight: 700; color: var(--navy); }
.layer-content p { margin-top: 6px; font-size: 13.5px; color: var(--gray-700); line-height: 1.55; }
.layer-value { border-left: 1px solid var(--gray-200); padding-left: 24px; }
.layer-value .vlabel { font-size: 11px; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; color: var(--teal); }
.layer-value p { margin-top: 6px; font-size: 13.5px; color: var(--gray-700); line-height: 1.55; }

/* ============================================================
   Dark checklist (API & Integration panel)
   ============================================================ */
.check-list-dark { display: flex; flex-direction: column; gap: 16px; }
.check-list-dark li { display: flex; gap: 12px; align-items: flex-start; font-size: 14px; color: rgba(245, 248, 250, 0.9); line-height: 1.6; }
.check-list-dark .icon { width: 18px; height: 18px; color: #7FE3D6; flex-shrink: 0; margin-top: 2px; }

/* ============================================================
   Statement banner (qualitative claims only — no unverified metrics)
   ============================================================ */
.statement-banner {
  background: var(--navy);
  border-radius: var(--radius-lg);
  padding: 44px 48px;
  text-align: center;
}
.statement-banner p {
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 600;
  color: var(--white);
  line-height: 1.5;
  max-width: 720px;
  margin: 0 auto;
}

/* ============================================================
   Pilot registration hero + form
   ============================================================ */
.pilot-hero {
  position: relative;
  background: radial-gradient(120% 140% at 85% -10%, #1B4A72 0%, var(--navy) 45%, #0B1E33 100%);
  color: var(--white);
  padding: 64px 0 80px;
  overflow: hidden;
}
.pilot-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 56px;
  align-items: start;
}
.pilot-hero h1 { margin-top: 14px; font-size: clamp(28px, 3.6vw, 38px); font-weight: 700; line-height: 1.24; }
.pilot-hero .hero-sub { margin-top: 16px; max-width: 520px; }

.pilot-steps { margin-top: 36px; display: flex; flex-direction: column; gap: 20px; }
.pilot-steps li { display: flex; gap: 14px; align-items: flex-start; }
.pilot-steps .num {
  width: 28px; height: 28px; border-radius: 50%;
  background: rgba(127, 227, 214, 0.16); color: #7FE3D6;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 13px; flex-shrink: 0;
}
.pilot-steps p { font-size: 14.5px; color: rgba(245, 248, 250, 0.85); line-height: 1.6; padding-top: 3px; }

.pilot-form-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-lg);
  color: var(--charcoal);
}
.pilot-form-card h2 { font-size: 19px; font-weight: 700; color: var(--navy); }
.pilot-form-card > .form-intro { margin-top: 6px; font-size: 13.5px; color: var(--gray-500); }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 16px; margin-top: 24px; }
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: 13px; font-weight: 600; color: var(--navy); }
.form-field .req { color: var(--orange); margin-left: 2px; }
.form-field .optional-tag { font-weight: 500; color: var(--gray-500); font-size: 12px; margin-left: 4px; }
.form-field input[type="text"],
.form-field input[type="email"],
.form-field input[type="tel"],
.form-field select,
.form-field textarea {
  padding: 11px 14px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 14px;
  color: var(--charcoal);
  background: var(--white);
  transition: border-color 150ms ease, box-shadow 150ms ease;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(0, 124, 131, 0.12);
}
.form-field textarea { resize: vertical; min-height: 84px; }
.form-hint { font-size: 12px; color: var(--gray-500); }

.checkbox-group { display: flex; flex-direction: column; gap: 10px; margin-top: 2px; }
.checkbox-row { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: var(--gray-700); }
.checkbox-row input { margin-top: 3px; width: 16px; height: 16px; accent-color: var(--teal); flex-shrink: 0; }

.consent-row {
  display: flex; align-items: flex-start; gap: 10px;
  margin-top: 8px; padding-top: 20px; border-top: 1px solid var(--gray-200);
  font-size: 13.5px; color: var(--gray-700); line-height: 1.55;
}
.consent-row input { margin-top: 3px; width: 16px; height: 16px; accent-color: var(--teal); flex-shrink: 0; }

.form-submit-note { margin-top: 16px; font-size: 12.5px; color: var(--gray-500); line-height: 1.6; }
.pilot-form-card .btn-primary { width: 100%; margin-top: 22px; padding: 15px 26px; }

@media (max-width: 860px) {
  .pilot-hero-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .pilot-form-card { padding: 28px 24px; }
}

/* ============================================================
   Responsive — general grid collapse
   ============================================================ */
@media (max-width: 960px) {
  .gap-grid, .solutions-grid, .signal-grid, .value-grid, .pilot-grid,
  .component-grid, .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .audience-grid { grid-template-columns: 1fr; }
  .output-fields { grid-template-columns: 1fr; }
}
@media (max-width: 700px) {
  .layer-row { grid-template-columns: 1fr; }
  .layer-value { border-left: none; padding-left: 0; padding-top: 14px; border-top: 1px solid var(--gray-200); }
  .layer-row:not(:last-child)::after { display: none; }
}
@media (max-width: 560px) {
  .gap-grid, .solutions-grid, .signal-grid, .value-grid, .pilot-grid,
  .component-grid, .kpi-grid { grid-template-columns: 1fr; }
  :root { --section-y: 56px; }
  .cta-banner { padding: 32px 22px; }
  .output-card { padding: 24px 22px; }
  .statement-banner { padding: 32px 26px; }
  .hero-cta .btn, .subpage-hero .hero-cta .btn {
    width: 100%;
    white-space: normal;
    text-align: center;
    line-height: 1.3;
  }
}

/* ============================================================
   Coming-soon placeholder page
   ============================================================ */
.coming-soon {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--ice);
}
.coming-soon .inner { max-width: 520px; padding: 40px 24px; }
.coming-soon h1 { font-size: 26px; color: var(--navy); font-weight: 700; }
.coming-soon p { margin-top: 12px; color: var(--gray-700); }
.coming-soon .btn { margin-top: 24px; }