/* VACTI profile site - white + blue design system */
:root {
  --navy: #0A3D62;
  --blue: #2563EB;
  --blue-dark: #0A3D62;
  --bg: #FFFFFF;
  --bg-alt: #F7F9FC;
  --ink: #0F172A;
  --muted: #64748B;
  --line: #E2E8F0;
  --card: #FFFFFF;
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px rgba(15, 23, 42, 0.06);
  --radius: 14px;
  --maxw: 1120px;
  --sans: "Inter", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-dark); }

code {
  font-family: var(--mono);
  font-size: 0.86em;
  background: #EEF2FB;
  color: var(--navy);
  padding: 0.1em 0.4em;
  border-radius: 6px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--navy);
  color: #fff;
  padding: 10px 16px;
  border-radius: 0 0 8px 0;
  z-index: 100;
}
.skip-link:focus { left: 0; color: #fff; }

/* NAV */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--navy); }
.brand-word {
  font-weight: 800;
  letter-spacing: 0.14em;
  font-size: 18px;
  color: var(--navy);
}
.nav-links { display: flex; gap: 26px; }
.nav-links a {
  color: var(--muted);
  font-weight: 500;
  font-size: 15px;
}
.nav-links a:hover { color: var(--navy); }

/* BUTTONS */
.btn {
  display: inline-block;
  font-weight: 600;
  font-size: 16px;
  padding: 13px 24px;
  border-radius: 10px;
  border: 1.5px solid transparent;
  transition: transform 0.08s ease, background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  cursor: pointer;
}
.btn:active { transform: translateY(1px); }
.btn-sm { padding: 8px 16px; font-size: 14px; border-radius: 8px; }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--navy); color: #fff; }
.btn-ghost { background: #fff; color: var(--navy); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }

/* HERO */
.hero {
  background:
    radial-gradient(900px 440px at 80% -10%, rgba(37, 99, 235, 0.10), transparent 60%),
    radial-gradient(760px 420px at 5% 0%, rgba(10, 61, 98, 0.08), transparent 55%),
    linear-gradient(180deg, #FFFFFF 0%, #F7F9FC 100%);
  border-bottom: 1px solid var(--line);
}
.hero-inner {
  text-align: center;
  padding: 84px 24px 72px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.hero-logo { margin-bottom: 22px; filter: drop-shadow(0 12px 28px rgba(10, 61, 98, 0.20)); }
.hero-kicker {
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 12px;
  font-weight: 700;
  color: var(--blue);
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(37, 99, 235, 0.18);
  padding: 6px 14px;
  border-radius: 999px;
  margin: 0 0 18px;
}
.hero-title {
  font-size: clamp(52px, 9vw, 88px);
  font-weight: 800;
  letter-spacing: 0.1em;
  margin: 0 0 14px;
  color: var(--navy);
}
.hero-tag {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  color: var(--ink);
  max-width: 780px;
  margin: 0 0 18px;
  line-height: 1.25;
}
.hero-sub {
  font-size: 17px;
  color: var(--muted);
  max-width: 660px;
  margin: 0 0 30px;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; margin-bottom: 44px; }
.hero-stats {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  width: 100%;
  max-width: 880px;
}
.hero-stats li {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 14px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.hero-stats strong { font-size: 22px; color: var(--navy); font-weight: 800; }
.hero-stats span { font-size: 13px; color: var(--muted); line-height: 1.35; }

/* SECTIONS */
.section { padding: 84px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 13px;
  font-weight: 700;
  color: var(--blue);
  margin: 0 0 10px;
}
.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  color: var(--navy);
  margin: 0 0 16px;
  max-width: 820px;
  line-height: 1.2;
}
.section-lead {
  font-size: 18px;
  color: var(--muted);
  max-width: 760px;
  margin: 0 0 44px;
}

/* LIFECYCLE FLOW */
.flow {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.flow-step {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 22px;
  box-shadow: var(--shadow);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.flow-step:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(15, 23, 42, 0.10); }
.flow-ico {
  width: 46px;
  height: 46px;
  color: var(--blue);
  margin-bottom: 16px;
}
.flow-ico svg { width: 46px; height: 46px; display: block; }
.flow-num {
  position: absolute;
  top: 22px;
  right: 22px;
  font-family: var(--mono);
  font-size: 20px;
  font-weight: 500;
  color: #CBD5E1;
}
.flow-step h3 { font-size: 18px; margin: 0 0 8px; color: var(--navy); }
.flow-step p { font-size: 15px; color: var(--muted); margin: 0; }

/* CAPABILITY CARDS */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
  box-shadow: var(--shadow);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(15, 23, 42, 0.10); }
.card h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  margin: 0 0 12px;
  color: var(--navy);
}
.card-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.14);
  flex: none;
}
.card p { font-size: 15px; color: var(--muted); margin: 0; }

/* ADVANTAGES */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px 34px;
}
.adv { border-top: 3px solid var(--blue); padding-top: 18px; }
.adv h3 { font-size: 18px; margin: 0 0 8px; color: var(--navy); }
.adv p { font-size: 15px; color: var(--muted); margin: 0; }

/* PLATFORM PILLARS */
.pillars {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.pillar {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  box-shadow: var(--shadow);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.pillar:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(15, 23, 42, 0.10); }
.pillar h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  margin: 0 0 12px;
  color: var(--navy);
}
.pillar-hook {
  font-size: 15.5px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 14px;
}
.pillar-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}
.pillar-list li {
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  color: var(--muted);
  line-height: 1.5;
}
.pillar-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 8px;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--blue);
  transform: rotate(45deg);
}

/* COVERAGE */
.cov-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.cov-group {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
  box-shadow: var(--shadow);
}
.cov-group h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  margin: 0 0 16px;
  color: var(--navy);
}
.cov-tags {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.cov-tags li {
  font-size: 13px;
  font-weight: 500;
  color: var(--navy);
  background: #EEF2FB;
  border: 1px solid #DCE5F4;
  border-radius: 8px;
  padding: 5px 11px;
}

/* ARCHITECTURE */
.diagram {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  overflow-x: auto;
}
.diagram svg { width: 100%; min-width: 720px; height: auto; display: block; }
.d-band { font-family: var(--sans); font-weight: 700; font-size: 13px; fill: var(--navy); letter-spacing: 0.06em; text-transform: uppercase; }
.d-bandsub { font-family: var(--mono); font-weight: 500; font-size: 12px; fill: var(--blue); }
.d-chip { font-family: var(--sans); font-weight: 700; font-size: 14px; fill: var(--navy); }
.d-chipsub { font-family: var(--sans); font-weight: 500; font-size: 11px; fill: var(--muted); }
.d-mini { font-family: var(--sans); font-weight: 600; font-size: 12px; fill: var(--navy); }
.d-edge { font-family: var(--mono); font-size: 11px; fill: var(--muted); }
.d-ico { stroke: var(--blue); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.diagram-note { font-size: 15px; color: var(--muted); max-width: 820px; margin: 22px 0 0; }

/* FOOTER */
.footer { background: var(--navy); color: #CBD9E8; padding: 48px 0; }
.footer-inner { display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
.footer-brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 800; letter-spacing: 0.12em; }
.footer-brand img { filter: brightness(0) invert(1); }
.footer-note { margin: 0; font-size: 15px; color: #AFC3D9; max-width: 640px; }
.footer-meta { margin: 0; font-size: 14px; color: #8FA8C2; }
.footer-meta a { color: #BFD6EE; margin-left: 10px; }
.footer-meta a:hover { color: #fff; }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .flow { grid-template-columns: repeat(2, 1fr); }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  body { font-size: 16px; }
  .nav-links { display: none; }
  .section { padding: 60px 0; }
  .hero-inner { padding: 60px 20px 52px; }
  .pillars { grid-template-columns: 1fr; }
  .cov-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .wrap { padding: 0 16px; }
  .flow { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr; }
  .adv-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; width: 100%; }
  .hero-cta .btn { width: 100%; }
}

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