:root {
  --bg: #05070b;
  --panel: #0d131d;
  --panel-soft: #111b27;
  --text: #f5f7fa;
  --muted: #aab6c6;
  --ice: #71d6ff;
  --ice-strong: #2db8ee;
  --amber: #f2a93b;
  --line: rgba(159, 205, 232, .16);
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.65; }
a { color: inherit; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 20; padding: .8rem 1rem; background: white; color: #000; }
.skip-link:focus { top: 1rem; }
.site-header { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; max-width: 100%; min-height: 82px; padding: 0 max(1.25rem, calc((100vw - var(--max)) / 2)); background: rgba(5, 7, 11, .88); border-bottom: 1px solid var(--line); backdrop-filter: blur(18px); }
.brand { display: flex; align-items: center; gap: .75rem; text-decoration: none; letter-spacing: .04em; }
.brand-mark { display: grid; place-items: center; width: 46px; height: 46px; border: 1px solid rgba(113, 214, 255, .55); border-radius: 50%; color: var(--ice); font-size: .72rem; font-weight: 800; box-shadow: 0 0 25px rgba(45, 184, 238, .18); }
.brand strong, .brand small { display: block; }
.brand small { color: var(--amber); font-size: .72rem; letter-spacing: .2em; text-transform: uppercase; }
nav { display: flex; align-items: center; gap: 1.6rem; }
nav a { color: var(--muted); font-size: .9rem; text-decoration: none; }
nav a:hover, nav a:focus { color: var(--ice); }
.nav-login { padding: .55rem .85rem; border: 1px solid var(--line); border-radius: 999px; }
.menu-button { display: none; border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--text); padding: .55rem .85rem; }
.hero { position: relative; isolation: isolate; display: grid; grid-template-columns: 1.15fr .85fr; gap: 4rem; align-items: center; width: min(var(--max), calc(100% - 2.5rem)); min-height: 690px; margin: 0 auto; padding: 7rem 0; }
.hero-glow { position: absolute; z-index: -1; width: 600px; height: 600px; left: -240px; top: 20px; border-radius: 50%; background: radial-gradient(circle, rgba(23, 127, 174, .24), transparent 66%); filter: blur(10px); }
.eyebrow { margin: 0 0 1rem; color: var(--amber); font-size: .78rem; font-weight: 800; letter-spacing: .22em; text-transform: uppercase; }
h1, h2, h3 { margin-top: 0; line-height: 1.08; }
h1 { margin-bottom: 1.5rem; font-size: clamp(3.4rem, 8vw, 7rem); letter-spacing: -.06em; }
h1 span { color: transparent; -webkit-text-stroke: 1px rgba(113, 214, 255, .75); }
.lead { max-width: 700px; color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.35rem); }
.actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2.2rem; }
.button { display: inline-flex; justify-content: center; align-items: center; min-height: 48px; padding: .8rem 1.2rem; border-radius: 3px; font-weight: 750; text-decoration: none; }
.button-primary { background: var(--ice); color: #041019; box-shadow: 0 12px 40px rgba(45, 184, 238, .2); }
.button-primary:hover { background: #a0e5ff; }
.button-secondary { border: 1px solid var(--line); color: var(--text); }
.hero-card { padding: clamp(1.6rem, 4vw, 3rem); background: linear-gradient(145deg, rgba(17, 27, 39, .95), rgba(7, 12, 19, .95)); border: 1px solid var(--line); box-shadow: 0 30px 80px rgba(0, 0, 0, .35); }
.hero-card h2 { margin: 1.6rem 0; font-size: clamp(1.7rem, 3vw, 2.4rem); }
.hero-card ul { display: grid; gap: .8rem; padding: 0; margin: 0; list-style: none; color: var(--muted); }
.hero-card li::before { content: "✓"; margin-right: .7rem; color: var(--ice); }
.status { display: inline-flex; align-items: center; gap: .6rem; color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .12em; }
.status i { width: 8px; height: 8px; border-radius: 50%; background: var(--ice); box-shadow: 0 0 12px var(--ice); }
.section { width: min(var(--max), calc(100% - 2.5rem)); margin: 0 auto; padding: 7rem 0; border-top: 1px solid var(--line); }
.section-heading { max-width: 760px; margin-bottom: 3rem; }
.section-heading h2, .responsibility h2, .cta h2 { font-size: clamp(2.2rem, 5vw, 4.2rem); letter-spacing: -.04em; }
.section-heading > p:last-child, .responsibility-copy, .cta > p { color: var(--muted); }
.card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.card { min-height: 280px; padding: 2rem; background: var(--panel); }
.card > span { color: var(--amber); font-size: .8rem; letter-spacing: .15em; }
.card h3 { margin: 3rem 0 1rem; font-size: 1.35rem; }
.card p { color: var(--muted); }
.process { display: grid; grid-template-columns: .8fr 1.2fr; gap: 5rem; }
.steps { display: grid; gap: 0; padding: 0; margin: 0; list-style: none; }
.steps li { display: grid; grid-template-columns: 52px 1fr; gap: 1.2rem; padding: 1.5rem 0; border-top: 1px solid var(--line); }
.steps span { color: var(--ice); font-weight: 800; }
.steps h3 { margin-bottom: .35rem; }
.steps p { margin: 0; color: var(--muted); }
.responsibility { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start; }
.responsibility-copy p:first-child { margin-top: 0; }
.legal-note { padding-left: 1rem; border-left: 2px solid var(--amber); font-size: .9rem; }
.cta { width: min(var(--max), calc(100% - 2.5rem)); margin: 2rem auto 7rem; padding: clamp(2rem, 7vw, 5rem); text-align: center; background: linear-gradient(130deg, rgba(45, 184, 238, .13), rgba(242, 169, 59, .08)); border: 1px solid var(--line); }
.cta p { max-width: 600px; margin-left: auto; margin-right: auto; }
.cta .button { margin-top: 1rem; }
footer { display: flex; justify-content: space-between; gap: 2rem; width: min(var(--max), calc(100% - 2.5rem)); margin: 0 auto; padding: 2rem 0 3rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .85rem; }
footer div { display: flex; flex-wrap: wrap; gap: 1rem; }
footer a { text-decoration: none; }
footer a:hover { color: var(--ice); }

@media (max-width: 900px) {
  .hero, .process, .responsibility { grid-template-columns: 1fr; gap: 2rem; }
  .hero { min-height: auto; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .menu-button { display: block; }
  nav { display: none; position: absolute; top: 82px; left: 0; right: 0; flex-direction: column; align-items: stretch; padding: 1.3rem; background: #080c12; border-bottom: 1px solid var(--line); }
  nav.open { display: flex; }
  nav a { padding: .55rem; }
}
@media (max-width: 580px) {
  h1 { font-size: 3.2rem; }
  .hero, .section { padding: 4.5rem 0; }
  .card-grid { grid-template-columns: 1fr; }
  footer { flex-direction: column; }
}