:root {
  --bg: #0a0f1c;
  --bg-alt: #0f1628;
  --surface: #141d33;
  --border: #22304f;
  --text: #e6ebf5;
  --muted: #9aa7c2;
  --accent: #22d3ee;
  --accent-2: #3b82f6;
  --radius: 14px;
  --max: 1160px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -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: 1.2; margin: 0 0 .6em; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.2rem, 5.5vw, 4rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.5rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 600; }
p { margin: 0 0 1em; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.mono { font-family: var(--mono); }
.accent { background: linear-gradient(90deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.eyebrow { color: var(--accent); font-size: .85rem; margin-bottom: .8em; letter-spacing: .02em; }

.skip-link { position: absolute; left: -9999px; top: 0; background: var(--accent); color: #000; padding: 8px 14px; z-index: 100; }
.skip-link:focus { left: 10px; top: 10px; }

/* Buttons */
.btn {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #04101f;
  font-weight: 600;
  padding: 14px 26px;
  border-radius: 10px;
  border: 0;
  cursor: pointer;
  font-size: 1rem;
  font-family: inherit;
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); box-shadow: 0 10px 30px -10px rgba(34, 211, 238, .6); }
.btn:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--accent); box-shadow: none; }
.btn-light { background: #fff; color: #04101f; }
.btn-small { padding: 10px 18px; font-size: .92rem; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .6; cursor: wait; transform: none; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10, 15, 28, .85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-size: 1.1rem; font-weight: 500; }
.brand:hover { text-decoration: none; }
.brand strong { color: var(--accent); font-weight: 800; }
.nav-menu { display: flex; align-items: center; gap: 28px; }
.nav-menu a:not(.btn) { color: var(--muted); font-weight: 500; }
.nav-menu a:not(.btn):hover { color: var(--text); text-decoration: none; }
.nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--text); margin: 5px 0; transition: .2s; }

/* Hero */
.hero { position: relative; overflow: hidden; padding: 110px 0 100px; }
.hero-grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(34, 211, 238, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, .07) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 30% 40%, #000 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 30% 40%, #000 20%, transparent 70%);
}
.hero::after {
  content: ""; position: absolute; width: 600px; height: 600px; right: -150px; top: -150px;
  background: radial-gradient(circle, rgba(59, 130, 246, .25), transparent 65%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; }
.hero-inner h1 { max-width: 860px; }
.lead { font-size: clamp(1.05rem, 2vw, 1.25rem); color: var(--muted); max-width: 640px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin: 32px 0 36px; }
.hero-points { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 10px 28px; color: var(--muted); font-size: .95rem; }
.hero-points li::before { content: "✓"; color: var(--accent); margin-right: 8px; font-weight: 700; }

/* Sections */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { max-width: 680px; margin-bottom: 52px; }
.section-head p:last-child { color: var(--muted); }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 22px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px; transition: border-color .2s, transform .2s;
}
.card:hover { border-color: rgba(34, 211, 238, .5); transform: translateY(-4px); }
.card p { color: var(--muted); margin: 0; }
.icon {
  width: 48px; height: 48px; border-radius: 12px; margin-bottom: 20px;
  display: grid; place-items: center;
  background: rgba(34, 211, 238, .1); border: 1px solid rgba(34, 211, 238, .25);
}
.icon svg { width: 24px; height: 24px; fill: none; stroke: var(--accent); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* Steps */
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 22px; counter-reset: none; }
.steps li { position: relative; padding: 28px; border-left: 2px solid var(--accent); background: linear-gradient(90deg, rgba(34, 211, 238, .06), transparent); border-radius: 0 var(--radius) var(--radius) 0; }
.step-num { color: var(--accent); font-size: .9rem; display: block; margin-bottom: 10px; }
.steps p { color: var(--muted); margin: 0; }

/* Split layouts */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.split > div > p { color: var(--muted); }
.tag-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.tag-list li { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 16px 18px; font-weight: 500; font-size: .95rem; }
.values { display: grid; gap: 16px; }
.value { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px 26px; }
.value h3 { color: var(--accent); }
.value p { color: var(--muted); margin: 0; }

/* CTA band */
.cta-band { background: linear-gradient(135deg, #0e7490, #1d4ed8); padding: 56px 0; }
.cta-inner { display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.cta-inner h2 { margin-bottom: .2em; }
.cta-inner p { margin: 0; color: rgba(255, 255, 255, .85); }

/* Contact */
.contact-list { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 14px; }
.contact-list li { display: flex; gap: 16px; align-items: baseline; color: var(--text); }
.contact-list span { color: var(--muted); font-size: .8rem; min-width: 56px; text-transform: uppercase; }
.contact-list a { min-width: 0; overflow-wrap: anywhere; }
.contact-form { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; }
.field { margin-bottom: 18px; flex: 1; }
.field-row { display: flex; gap: 16px; }
label { display: block; font-size: .9rem; font-weight: 500; margin-bottom: 6px; }
input, select, textarea {
  width: 100%; padding: 12px 14px; font: inherit; color: var(--text);
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); }
textarea { resize: vertical; }
.field.invalid input, .field.invalid textarea { border-color: #f87171; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-status { margin: 14px 0 0; font-size: .95rem; min-height: 1.4em; }
.form-status.ok { color: #4ade80; }
.form-status.err { color: #f87171; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 40px 0; background: var(--bg-alt); }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 20px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 22px; }
.site-footer nav a { color: var(--muted); }
.copyright { color: var(--muted); font-size: .88rem; margin: 0; width: 100%; }

/* Simple content pages (privacy, 404, thank-you) */
.page { padding: 80px 0; min-height: 60vh; }
.page .container { max-width: 800px; }
.page h2 { font-size: 1.4rem; margin-top: 1.6em; }
.page p, .page li { color: var(--muted); }

/* Reveal animation */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn, .card { transition: none; }
}

/* Responsive */
@media (max-width: 900px) {
  .split { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav-menu {
    position: absolute; top: 70px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--border);
    padding: 10px 20px 20px; display: none;
  }
  .nav-menu.open { display: flex; }
  .nav-menu a:not(.btn) { padding: 14px 0; border-bottom: 1px solid var(--border); }
  .nav-menu .btn { margin-top: 16px; text-align: center; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}
@media (max-width: 560px) {
  .container { padding: 0 16px; }
  .hero { padding: 72px 0 64px; }
  .section { padding: 68px 0; }
  .tag-list { grid-template-columns: 1fr; }
  .field-row { flex-direction: column; gap: 0; }
  .contact-form { padding: 22px; }
  .cards { grid-template-columns: 1fr; }
}