:root {
  --bg: #07111f;
  --bg-soft: #0d1b2f;
  --card: #10233c;
  --card-2: #0b1728;
  --text: #edf4ff;
  --muted: #a8b8ce;
  --primary: #3ea8ff;
  --primary-2: #74d6ff;
  --line: rgba(255,255,255,.11);
  --shadow: 0 24px 70px rgba(0,0,0,.32);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top left, rgba(62,168,255,.22), transparent 35%), var(--bg);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
.container { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(7,17,31,.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.nav { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand { display: flex; align-items: center; gap: 12px; font-size: 21px; letter-spacing: -.3px; }
.brand-icon {
  width: 42px; height: 42px; border-radius: 14px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--primary), #1d4ed8);
  box-shadow: 0 10px 35px rgba(62,168,255,.25);
  font-size: 25px;
}
.menu { display: flex; align-items: center; gap: 26px; color: var(--muted); font-size: 15px; }
.menu a:hover { color: var(--text); }
.menu-btn { display: none; background: none; border: 0; color: var(--text); font-size: 28px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 22px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), #2563eb);
  color: #fff;
  font-weight: 700;
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 12px 30px rgba(37,99,235,.25);
}
.btn:hover { transform: translateY(-1px); }
.btn-secondary { background: rgba(255,255,255,.06); box-shadow: none; color: var(--text); }
.btn-small { padding: 10px 16px; }
.full { width: 100%; }

.hero { padding: 96px 0 80px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 52px; align-items: center; }
.eyebrow { color: var(--primary-2); text-transform: uppercase; letter-spacing: .14em; font-size: 12px; font-weight: 700; margin: 0 0 14px; }
h1, h2, h3 { line-height: 1.15; margin-top: 0; }
h1 { font-size: clamp(42px, 6vw, 68px); letter-spacing: -2.6px; margin-bottom: 22px; }
h2 { font-size: clamp(30px, 4vw, 44px); letter-spacing: -1.4px; margin-bottom: 16px; }
h3 { font-size: 20px; margin-bottom: 10px; }
.lead { color: var(--muted); font-size: 19px; max-width: 650px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 32px; }

.hero-card {
  position: relative;
  min-height: 430px;
  border-radius: 34px;
  background: linear-gradient(145deg, rgba(16,35,60,.95), rgba(8,18,33,.95));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.hero-card::before {
  content: "";
  position: absolute; inset: -40%;
  background: radial-gradient(circle, rgba(62,168,255,.25), transparent 35%);
  animation: pulse 7s ease-in-out infinite;
}
.board {
  position: absolute;
  inset: 46px;
  border-radius: 28px;
  background-image: linear-gradient(45deg, rgba(255,255,255,.05) 25%, transparent 25%), linear-gradient(-45deg, rgba(255,255,255,.05) 25%, transparent 25%);
  background-size: 54px 54px;
  border: 1px solid rgba(255,255,255,.11);
}
.piece { position: absolute; inset: 0; display: grid; place-items: center; font-size: 150px; color: #fff; text-shadow: 0 16px 50px rgba(62,168,255,.45); }
.diag { position: absolute; height: 3px; width: 150%; background: linear-gradient(90deg, transparent, var(--primary-2), transparent); transform-origin: center; opacity: .55; }
.diag-1 { top: 48%; left: -25%; transform: rotate(38deg); }
.diag-2 { top: 52%; left: -25%; transform: rotate(-38deg); }
.metric-card {
  position: absolute;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.13);
  backdrop-filter: blur(10px);
}
.metric-card span { display: block; color: var(--muted); font-size: 13px; }
.metric-card strong { font-size: 18px; }
.metric-card.one { left: 28px; bottom: 34px; }
.metric-card.two { right: 28px; top: 34px; }

.section { padding: 86px 0; }
.section.alt { background: rgba(255,255,255,.035); border-block: 1px solid var(--line); }
.section-head { max-width: 760px; margin-bottom: 38px; }
.section-head p, .split p, .cta p { color: var(--muted); }
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.card, .feature, .contact-card {
  background: rgba(16,35,60,.72);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 24px;
  box-shadow: 0 12px 34px rgba(0,0,0,.18);
}
.card p, .feature p { color: var(--muted); margin-bottom: 0; }
.card-icon { font-size: 30px; display: inline-block; margin-bottom: 18px; }

.split { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: start; }
.segment-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.segment-list div {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255,255,255,.06);
  border: 1px solid var(--line);
  color: var(--text);
}
.features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.cta { padding: 90px 0; }
.cta-box {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 36px;
  align-items: center;
  padding: 44px;
  border-radius: 32px;
  background: linear-gradient(135deg, rgba(62,168,255,.18), rgba(255,255,255,.04));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.contact-card { display: grid; gap: 14px; text-align: center; }
.contact-card a:not(.btn) { color: var(--primary-2); font-weight: 700; }
.contact-card small { color: var(--muted); }
.footer { border-top: 1px solid var(--line); color: var(--muted); padding: 26px 0; }
.footer-content { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 14px; }

@keyframes pulse { 0%,100% { transform: scale(1); opacity: .8; } 50% { transform: scale(1.1); opacity: 1; } }

@media (max-width: 900px) {
  .menu-btn { display: block; }
  .menu {
    position: absolute; top: 76px; left: 0; right: 0;
    display: none; flex-direction: column; align-items: flex-start;
    padding: 20px; background: #07111f; border-bottom: 1px solid var(--line);
  }
  .menu.open { display: flex; }
  .hero-grid, .split, .cta-box { grid-template-columns: 1fr; }
  .cards, .features { grid-template-columns: repeat(2, 1fr); }
  .hero { padding-top: 60px; }
}

@media (max-width: 620px) {
  .container { width: min(100% - 28px, 1120px); }
  h1 { font-size: 40px; letter-spacing: -1.5px; }
  .cards, .features, .segment-list { grid-template-columns: 1fr; }
  .hero-card { min-height: 330px; }
  .piece { font-size: 110px; }
  .cta-box { padding: 28px; }
  .hero-actions .btn { width: 100%; }
}