:root {
  --bg: #ffffff;
  --bg-alt: #f5f7fb;
  --ink: #0f172a;
  --muted: #526078;
  --line: #e3e8f2;
  --navy: #0a1230;
  --navy-2: #131e4a;
  --accent: #4f46e5;
  --accent-2: #06b6d4;
  --grad: linear-gradient(135deg, #4f46e5 0%, #06b6d4 100%);
  --radius: 16px;
  --shadow: 0 10px 30px -12px rgba(15, 23, 42, .18);
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -.02em; margin: 0 0 .5em; }
p { margin: 0 0 1em; }
.wrap { width: min(var(--max), 100% - 48px); margin-inline: auto; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; background: #fff; padding: 8px 12px; z-index: 100; border-radius: 8px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .85);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s, box-shadow .2s;
}
.site-header.scrolled { border-color: var(--line); box-shadow: 0 4px 20px -10px rgba(15, 23, 42, .15); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand img { height: 44px; width: auto; }
.nav ul { display: flex; gap: 6px; list-style: none; margin: 0; padding: 0; align-items: center; }
.nav a.link { color: var(--ink); font-weight: 500; padding: 8px 14px; border-radius: 999px; font-size: .95rem; }
.nav a.link:hover { background: var(--bg-alt); text-decoration: none; }
.nav a.link[aria-current="page"] { color: var(--accent); background: #eef0ff; }
.menu-btn { display: none; background: none; border: 1px solid var(--line); border-radius: 10px; padding: 8px 12px; font: inherit; cursor: pointer; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 24px; border-radius: 999px; font-weight: 600; font-size: .98rem;
  border: 1px solid transparent; cursor: pointer; transition: transform .15s, box-shadow .15s, background .15s;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 8px 24px -8px rgba(79, 70, 229, .6); }
.btn-primary:hover { box-shadow: 0 12px 28px -8px rgba(79, 70, 229, .75); }
.btn-ghost { background: rgba(255, 255, 255, .08); color: #fff; border-color: rgba(255, 255, 255, .3); }
.btn-ghost:hover { background: rgba(255, 255, 255, .16); }
.btn-sm { padding: 9px 18px; font-size: .9rem; }

/* Hero */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background: radial-gradient(1000px 500px at 85% -10%, rgba(6, 182, 212, .35), transparent 60%),
              radial-gradient(800px 500px at 0% 110%, rgba(79, 70, 229, .5), transparent 60%),
              var(--navy);
  padding: 110px 0 120px;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 50% 40%, #000 20%, transparent 75%);
}
.hero .wrap { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.eyebrow {
  display: inline-block; font-size: .8rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase;
  color: #a5b4fc; background: rgba(165, 180, 252, .12); border: 1px solid rgba(165, 180, 252, .25);
  padding: 6px 14px; border-radius: 999px; margin-bottom: 22px;
}
.hero h1 { font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 800; }
.grad-text { background: linear-gradient(90deg, #a5b4fc, #67e8f9); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { font-size: 1.2rem; color: #c7d0ee; max-width: 560px; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

/* Data → Information → Insight visual */
.flow { display: grid; gap: 14px; }
.flow-card {
  display: flex; align-items: center; gap: 18px;
  background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .14);
  backdrop-filter: blur(8px); border-radius: 18px; padding: 20px 22px;
  animation: float 6s ease-in-out infinite;
}
.flow-card:nth-child(2) { margin-left: 28px; animation-delay: -2s; }
.flow-card:nth-child(3) { margin-left: 56px; animation-delay: -4s; background: linear-gradient(135deg, rgba(79, 70, 229, .5), rgba(6, 182, 212, .4)); }
.flow-card .ico { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; background: rgba(255, 255, 255, .12); flex: none; }
.flow-card svg { width: 24px; height: 24px; stroke: #fff; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.flow-card b { display: block; font-size: 1.1rem; }
.flow-card span { font-size: .9rem; color: #c7d0ee; }
@keyframes float { 50% { transform: translateY(-8px); } }

/* Sections */
section { padding: 96px 0; }
.alt { background: var(--bg-alt); }
.section-head { max-width: 680px; margin-bottom: 52px; }
.section-head.center { margin-inline: auto; text-align: center; }
.kicker { color: var(--accent); font-weight: 700; font-size: .82rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 10px; display: block; }
h2.title { font-size: clamp(1.9rem, 3.5vw, 2.7rem); font-weight: 800; }
.sub { color: var(--muted); font-size: 1.1rem; }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: -64px; position: relative; z-index: 2; }
.stat { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); text-align: center; }
.stat b { display: block; font-size: 1.5rem; font-weight: 800; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat span { color: var(--muted); font-size: .92rem; }

/* Cards */
.grid { display: grid; gap: 24px; }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.card {
  position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px; transition: transform .2s, box-shadow .2s, border-color .2s;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: #c7cdf7; }
.card .ico {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  background: #eef0ff; margin-bottom: 20px;
}
.card .ico svg { width: 26px; height: 26px; stroke: var(--accent); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.card h3 { font-size: 1.2rem; font-weight: 700; }
.card p { color: var(--muted); margin: 0; font-size: .98rem; }

/* Process */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: s; }
.step { position: relative; padding-top: 18px; border-top: 2px solid var(--line); }
.step::before {
  counter-increment: s; content: "0" counter(s);
  position: absolute; top: -2px; left: 0; padding-right: 12px; transform: translateY(-50%);
  background: var(--bg-alt); font-weight: 800; color: var(--accent); font-size: .95rem;
}
.step h3 { font-size: 1.05rem; }
.step p { color: var(--muted); font-size: .95rem; margin: 0; }

/* CTA band */
.cta {
  background: radial-gradient(700px 300px at 90% 0%, rgba(6, 182, 212, .4), transparent 60%), var(--navy-2);
  color: #fff; border-radius: 28px; padding: 64px 48px; text-align: center; position: relative; overflow: hidden;
}
.cta h2 { font-size: clamp(1.8rem, 3.2vw, 2.5rem); font-weight: 800; }
.cta p { color: #c7d0ee; max-width: 560px; margin: 0 auto 28px; font-size: 1.1rem; }

/* Page header */
.page-hero { background: var(--navy); color: #fff; padding: 72px 0 80px; position: relative; overflow: hidden;
  background: radial-gradient(700px 300px at 90% 0%, rgba(6, 182, 212, .3), transparent 60%), radial-gradient(600px 300px at 0% 100%, rgba(79, 70, 229, .4), transparent 60%), var(--navy); }
.page-hero h1 { font-size: clamp(2.2rem, 4.5vw, 3.2rem); font-weight: 800; margin-bottom: 14px; }
.page-hero p { color: #c7d0ee; font-size: 1.15rem; max-width: 640px; margin: 0; }

/* Service rows */
.svc { display: grid; grid-template-columns: 72px 1fr; gap: 24px; padding: 34px 0; border-bottom: 1px solid var(--line); }
.svc:last-child { border-bottom: 0; }
.svc .ico { width: 56px; height: 56px; border-radius: 16px; background: var(--grad); display: grid; place-items: center; }
.svc .ico svg { width: 28px; height: 28px; stroke: #fff; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.svc h3 { font-size: 1.35rem; font-weight: 700; }
.svc p { color: var(--muted); margin: 0; max-width: 720px; }

/* About */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.quote {
  font-size: 1.5rem; font-weight: 600; line-height: 1.4; letter-spacing: -.01em;
  padding-left: 24px; border-left: 4px solid; border-image: var(--grad) 1;
}
.values { display: grid; gap: 16px; }
.value { display: flex; gap: 16px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.value .ico { flex: none; width: 44px; height: 44px; border-radius: 12px; background: #eef0ff; display: grid; place-items: center; }
.value .ico svg { width: 22px; height: 22px; stroke: var(--accent); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.value h3 { font-size: 1.05rem; margin-bottom: 4px; }
.value p { margin: 0; color: var(--muted); font-size: .95rem; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 40px; align-items: start; }
.contact-card { background: var(--navy-2); color: #fff; border-radius: 22px; padding: 36px; }
.contact-card h2 { font-size: 1.6rem; }
.contact-card p { color: #c7d0ee; }
.contact-card a { color: #67e8f9; font-weight: 600; font-size: 1.15rem; }
form { background: #fff; border: 1px solid var(--line); border-radius: 22px; padding: 36px; box-shadow: var(--shadow); }
.field { margin-bottom: 18px; }
label { display: block; font-weight: 600; font-size: .9rem; margin-bottom: 6px; }
input, textarea, select {
  width: 100%; font: inherit; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg-alt); color: var(--ink);
  transition: border-color .15s, box-shadow .15s, background .15s;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--accent); background: #fff; box-shadow: 0 0 0 4px rgba(79, 70, 229, .15); }
textarea { min-height: 130px; resize: vertical; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.note { font-size: .85rem; color: var(--muted); margin: 14px 0 0; }

/* Footer */
.site-footer { background: var(--navy); color: #aeb9d8; padding: 56px 0 32px; }
.foot { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
.foot img { height: 40px; width: auto; background: #fff; padding: 6px 10px; border-radius: 10px; margin-bottom: 16px; }
.foot h4 { color: #fff; margin: 0 0 14px; font-size: .95rem; }
.foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.foot a { color: #aeb9d8; }
.foot a:hover { color: #fff; }
.copy { border-top: 1px solid rgba(255, 255, 255, .1); margin-top: 40px; padding-top: 22px; font-size: .88rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .flow-card { animation: none; }
  html { scroll-behavior: auto; }
}

/* Responsive */
@media (max-width: 900px) {
  .hero .wrap, .split, .contact-grid { grid-template-columns: 1fr; }
  .hero { padding: 72px 0 96px; }
  .grid.cols-3, .grid.cols-2, .steps { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .foot { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .menu-btn { display: block; }
  .nav ul {
    display: none; position: absolute; top: 76px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch;
    padding: 12px 24px 20px; border-bottom: 1px solid var(--line); box-shadow: 0 20px 30px -20px rgba(15, 23, 42, .2);
  }
  .nav ul.open { display: flex; }
  .nav a.link { display: block; padding: 12px 14px; }
}
@media (max-width: 560px) {
  section { padding: 64px 0; }
  .grid.cols-3, .grid.cols-2, .steps, .row, .foot { grid-template-columns: 1fr; }
  .svc { grid-template-columns: 1fr; gap: 14px; }
  .cta { padding: 44px 24px; }
  .flow-card:nth-child(2), .flow-card:nth-child(3) { margin-left: 0; }
}

/* Experience / results */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chips.center { justify-content: center; max-width: 900px; margin-inline: auto; }
.chip {
  background: #fff; border: 1px solid var(--line); color: var(--ink); padding: 8px 16px; border-radius: 999px;
  font-size: .92rem; font-weight: 500; transition: border-color .15s, color .15s, transform .15s;
}
.chip:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.alt .chip { background: #fff; }
.case .tag { display: inline-block; font-size: .72rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); background: #eef0ff; padding: 4px 10px; border-radius: 999px; margin-bottom: 16px; }
.metric { font-size: 2.2rem; font-weight: 800; letter-spacing: -.02em; line-height: 1.1; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.metric-label { font-weight: 600; margin-bottom: 14px; }
.eras { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.era { border-left: 3px solid; border-image: var(--grad) 1; padding-left: 20px; }
.era .yr { font-weight: 800; color: var(--accent); font-size: .9rem; letter-spacing: .04em; }
.era h3 { font-size: 1.1rem; margin: 6px 0 8px; }
.era p { color: var(--muted); font-size: .95rem; margin: 0; }
.techgrid h3 { font-size: 1rem; margin-bottom: 12px; }
@media (max-width: 900px) { .eras { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .eras { grid-template-columns: 1fr; } }