:root {
  --primary: #0066ff;
  --primary-2: #00a8ff;
  --bg: #f3f7fb;
  --panel: #fff;
  --ink: #0b1f4d;
  --muted: #6b7c93;
  --line: #e4edf5;
  --gray-700: #3d4f6f;
  --flow: linear-gradient(135deg, #0066ff 0%, #00a8ff 100%);
  --glow: 0 22px 48px rgba(0, 102, 255, 0.14);
  --navy: #071a3a;
}
html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #060e1a;
  --panel: #0d1b30;
  --ink: #e8eef8;
  --muted: #8aa0c2;
  --line: #1c3250;
  --gray-700: #c5d0e0;
  --glow: 0 22px 48px rgba(0, 102, 255, 0.22);
  --navy: #050d18;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: Open Sans, sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.55;
}
button { font: inherit; cursor: pointer; color: inherit; }
a { color: var(--primary); text-decoration: none; }
.wrap { width: min(1100px, calc(100% - 40px)); margin: 0 auto; }

.brand-mark {
  display: block;
  background: transparent;
  filter: drop-shadow(0 18px 28px rgba(0, 80, 200, 0.28));
}

.top {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 20px;
  background: rgba(7, 26, 58, 0.88);
  backdrop-filter: blur(16px);
  color: #fff;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: inherit;
  flex: none;
}
.brand .brand-mark {
  width: 36px;
  height: 36px;
  object-fit: contain;
  filter: drop-shadow(0 6px 12px rgba(0, 168, 255, 0.35));
}
.brand b { display: block; font-size: 18px; font-weight: 800; letter-spacing: -0.03em; }
.brand i { font-style: normal; color: var(--primary-2); }
.links { display: flex; gap: 18px; margin-left: auto; font-size: 13px; font-weight: 600; }
.links a { color: rgba(255,255,255,.78); }
.links a:hover { color: #fff; }
.actions { display: flex; gap: 8px; flex: none; align-items: center; }
.burger { display: none; }
.top .btn.ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.35);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  background: var(--flow);
  color: #fff;
  border-radius: 12px;
  padding: 11px 18px;
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 8px 18px rgba(0, 102, 255, 0.28);
}
.btn:hover { color: #fff; filter: brightness(1.05); }
.btn.ghost {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
  box-shadow: none;
}
.hero .btn.ghost, .top .btn.ghost { color: #fff; border-color: rgba(255,255,255,.45); }
.btn.busy { opacity: 0.7; pointer-events: none; }
.text-btn {
  background: none;
  border: 0;
  color: #9dc4ff;
  font-weight: 600;
  padding: 0;
}

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(900px 480px at 85% 10%, rgba(0, 168, 255, 0.45), transparent 60%),
    radial-gradient(700px 400px at 10% 80%, rgba(0, 102, 255, 0.28), transparent 55%),
    var(--navy);
  color: #fff;
  padding: 56px 0 108px;
}
.swell {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  width: 100%;
  height: 120px;
}
.swell path:first-child {
  fill: rgba(0, 168, 255, 0.22);
  animation: swell 10s ease-in-out infinite;
}
.swell path:last-child {
  fill: var(--bg);
  animation: swell 14s ease-in-out infinite reverse;
}
@keyframes swell {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(-6%); }
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}
.eyebrow {
  margin: 0 0 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.hero .eyebrow { color: #9ed8ff; }
.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.04em;
}
.lede, .intro { max-width: 40em; color: var(--gray-700); }
.hero .lede { color: rgba(255,255,255,.88); max-width: 34em; font-size: 17px; }
.cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }

.hero-orb {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 320px;
}
.hero-orb .glow {
  position: absolute;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,168,255,.45), transparent 68%);
  animation: pulse 5s ease-in-out infinite;
}
.hero-orb .brand-mark {
  position: relative;
  width: min(280px, 70%);
  height: auto;
  filter: drop-shadow(0 28px 40px rgba(0, 40, 120, 0.45));
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.85; }
  50% { transform: scale(1.08); opacity: 1; }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.float { animation: float 5.5s ease-in-out infinite; }

.rise {
  animation: rise 0.8s ease both;
}
.rise.delay, .rise.d2 { animation-delay: 0.12s; }
.rise.d3 { animation-delay: 0.24s; }
@keyframes rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}

.stats {
  position: relative;
  z-index: 2;
  margin-top: -52px;
  padding-bottom: 8px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--glow);
}
.stats-grid > div {
  background: var(--panel);
  text-align: center;
  padding: 22px 12px;
}
.stats b {
  display: block;
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 800;
  letter-spacing: -0.04em;
  background: var(--flow);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stats span { display: block; margin-top: 4px; color: var(--muted); font-size: 13px; font-weight: 600; }

.block { padding: 72px 0; }
.block h2, .band h2, .close h2 {
  margin: 0 0 14px;
  font-size: clamp(26px, 3.2vw, 36px);
  letter-spacing: -0.03em;
  font-weight: 800;
}
.story { text-align: center; }
.story .intro { margin: 0 auto; }
.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 40px;
  text-align: left;
}
.pillars article {
  background: var(--panel);
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--glow);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}
.pillars article:hover, .plan:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 40px rgba(0, 102, 255, 0.16);
}
.pillars .n {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--primary-2);
}
.pillars h3 { margin: 0 0 8px; font-size: 20px; }
.pillars p:last-child { margin: 0; color: var(--gray-700); font-size: 15px; }

.band {
  background: var(--flow);
  color: #fff;
  padding: 56px 0;
  text-align: center;
}
.band-inner { max-width: 40em; }
.band p { margin: 0; font-size: 17px; opacity: 0.92; }

.plans {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 32px;
  align-items: stretch;
}
.plan {
  background: var(--panel);
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--glow);
  display: flex;
  flex-direction: column;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}
.plan.on { box-shadow: 0 0 0 2px var(--primary), var(--glow); }
.badge {
  display: inline-block;
  margin: 0 0 10px;
  background: var(--flow);
  color: #fff;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.plan h3 { margin: 0; font-size: 22px; }
.who { margin: 4px 0 14px; color: var(--muted); font-size: 13px; font-weight: 600; }
.sum { margin: 0; display: flex; align-items: baseline; gap: 8px; }
.sum b { font-size: 36px; letter-spacing: -0.04em; }
.sum span { color: var(--muted); font-size: 13px; }
.line { margin: 14px 0 22px; color: var(--gray-700); font-size: 14px; flex: 1; }
.plan .btn { width: 100%; }

.close {
  padding: 72px 0 80px;
  text-align: center;
  background: var(--navy);
  color: #fff;
}
.close-mark {
  width: 88px;
  height: auto;
  margin: 0 auto 18px;
  filter: drop-shadow(0 16px 24px rgba(0, 168, 255, 0.35));
}
.close p { margin: 0 0 22px; color: #9ed8ff; }

.foot {
  background: #050d18;
  color: #9aa8be;
  padding: 22px 0;
  font-size: 14px;
}
.foot .brand { color: #fff; }
.foot-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}
.foot-links { display: flex; gap: 18px; align-items: center; }
.foot a { color: #9dc4ff; }

@media (prefers-reduced-motion: reduce) {
  .float, .rise, .swell path, .hero-orb .glow { animation: none; }
}

@media (max-width: 860px) {
  .hero-grid, .stats-grid, .pillars, .plans, .foot-grid { grid-template-columns: 1fr; }
  .hero { text-align: center; padding-bottom: 88px; }
  .hero .lede { margin-left: auto; margin-right: auto; }
  .cta { justify-content: center; }
  .hero-orb { min-height: 240px; }
  .stats { margin-top: -36px; }
  .foot-grid { display: grid; justify-items: start; }
  .links { display: none; }
  #nav-on:checked ~ .links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    z-index: 21;
    background: var(--navy);
    padding: 16px 20px 20px;
  }
  .burger {
    display: grid;
    place-items: center;
    margin-left: auto;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,.25);
    background: transparent;
  }
  .burger span, .burger span:before, .burger span:after {
    content: "";
    display: block;
    width: 16px;
    height: 2px;
    background: #fff;
    position: relative;
  }
  .burger span:before { position: absolute; top: -5px; }
  .burger span:after { position: absolute; top: 5px; }
  .top { flex-wrap: wrap; }
}