:root {
  --bg: #0b1220;
  --bg-alt: #0f1830;
  --surface: #121c33;
  --border: #22304f;
  --text: #e6ebf5;
  --muted: #9aa8c4;
  --accent: #2dd4bf;
  --accent-strong: #14b8a6;
  --accent-ink: #04201c;
  --warn: #fbbf24;
  --radius: 14px;
  --max: 1120px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Code", SFMono-Regular, Menlo, Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; }
a { color: var(--accent); }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 4.5vw, 3.2rem); font-weight: 750; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 700; }
h3 { font-size: 1.1rem; font-weight: 650; }
p { margin: 0 0 1em; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: var(--accent-ink); padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(11, 18, 32, .85); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); }
.bar { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 500; }
.brand b { font-weight: 700; }
.logo { width: 28px; height: 28px; color: var(--accent); }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a:not(.btn) { color: var(--muted); text-decoration: none; font-size: .95rem; }
.nav a:not(.btn):hover { color: var(--text); }
.nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--text); margin: 5px 0; transition: transform .2s, opacity .2s; }

/* Buttons */
.btn { display: inline-block; background: var(--accent); color: var(--accent-ink); font-weight: 650; text-decoration: none; padding: 13px 24px; border-radius: 10px; border: 1px solid var(--accent); transition: background .15s, transform .15s; }
.btn:hover { background: var(--accent-strong); border-color: var(--accent-strong); transform: translateY(-1px); }
.btn-sm { padding: 8px 16px; font-size: .9rem; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { background: var(--surface); border-color: var(--muted); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

/* Hero */
.hero { padding: 84px 0 72px; background: radial-gradient(900px 420px at 80% -10%, rgba(45, 212, 191, .14), transparent 60%), var(--bg); }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.eyebrow { text-transform: uppercase; letter-spacing: .14em; font-size: .78rem; font-weight: 700; color: var(--accent); margin-bottom: 14px; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 56ch; }
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin: 28px 0; }
.cta-row.center { justify-content: center; }
.trust { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px 24px; color: var(--muted); font-size: .92rem; }
.trust li::before { content: "\2713"; color: var(--accent); margin-right: 8px; font-weight: 700; }

.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: 0 24px 60px rgba(0, 0, 0, .4); overflow: hidden; }
.panel-head { display: flex; align-items: center; gap: 7px; padding: 12px 16px; border-bottom: 1px solid var(--border); background: rgba(255, 255, 255, .02); }
.dot { width: 10px; height: 10px; border-radius: 50%; background: #34425f; }
.panel-title { margin-left: 8px; font-family: var(--mono); font-size: .8rem; color: var(--muted); }
.checks { list-style: none; margin: 0; padding: 18px 20px 6px; font-family: var(--mono); font-size: .88rem; }
.checks li { padding: 7px 0 7px 28px; position: relative; }
.checks li::before { position: absolute; left: 0; font-weight: 700; }
.checks .ok::before { content: "\2713"; color: var(--accent); }
.checks .warn::before { content: "!"; color: var(--warn); }
.checks .warn { color: var(--warn); }
.panel-foot { margin: 0; padding: 12px 20px 16px; font-size: .78rem; color: var(--muted); border-top: 1px solid var(--border); }

/* Sections */
.section { padding: 84px 0; }
.section.alt { background: var(--bg-alt); border-block: 1px solid var(--border); }
.section-head { max-width: 680px; margin-bottom: 44px; }
.sub { color: var(--muted); font-size: 1.05rem; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; transition: border-color .2s, transform .2s; }
.card:hover { border-color: var(--accent-strong); transform: translateY(-3px); }
.card p { color: var(--muted); margin: 0; font-size: .96rem; }
.icon { width: 46px; height: 46px; border-radius: 11px; background: rgba(45, 212, 191, .1); display: grid; place-items: center; margin-bottom: 18px; }
.icon svg { width: 24px; height: 24px; fill: none; stroke: var(--accent); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.split { display: grid; grid-template-columns: 1fr 1.25fr; gap: 56px; align-items: start; }
.features { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.features p { color: var(--muted); margin: 0; font-size: .96rem; }
.about-copy p { color: var(--muted); font-size: 1.05rem; }

.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: s; }
.steps li { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; }
.steps p { color: var(--muted); font-size: .95rem; margin: 0; }
.num { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); font-weight: 750; margin-bottom: 14px; }

.contact { background: radial-gradient(700px 320px at 50% 0, rgba(45, 212, 191, .12), transparent 70%), var(--bg); }
.contact-box { max-width: 720px; margin: 0 auto; text-align: center; background: var(--surface); border: 1px solid var(--border); border-radius: 20px; padding: 56px 32px; }
.fine { color: var(--muted); font-size: .88rem; margin: 8px 0 0; }

.site-footer { border-top: 1px solid var(--border); padding: 28px 0; color: var(--muted); font-size: .9rem; }
.foot { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
.foot p { margin: 0; }

/* Responsive */
@media (max-width: 960px) {
  .hero-grid, .split { grid-template-columns: 1fr; gap: 40px; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .nav { position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--bg); border-bottom: 1px solid var(--border); padding: 8px 20px 20px; display: none; }
  .nav.open { display: flex; }
  .nav a:not(.btn) { padding: 12px 0; border-bottom: 1px solid var(--border); }
  .nav .btn { text-align: center; margin-top: 14px; }
  .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); }
  .hero { padding: 56px 0 48px; }
  .section { padding: 60px 0; }
  .cards, .steps, .features { grid-template-columns: 1fr; }
  .contact-box { padding: 40px 20px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}