:root {
  --bg: #05070d;
  --bg-2: #0a0f1c;
  --panel: rgba(16, 24, 44, 0.72);
  --line: rgba(0, 229, 255, 0.18);
  --text: #dfe8f5;
  --muted: #8a9bb8;
  --cyan: #00e5ff;
  --violet: #9b5cff;
  --lime: #b6ff3b;
  --warn: #ffb547;
  --radius: 14px;
  --mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.04) 1px, transparent 1px),
    radial-gradient(1200px 600px at 80% -10%, rgba(155, 92, 255, 0.18), transparent 60%),
    radial-gradient(900px 500px at -10% 20%, rgba(0, 229, 255, 0.12), transparent 60%);
  background-size: 48px 48px, 48px 48px, auto, auto;
  background-attachment: fixed;
  color: var(--text);
  font: 17px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 760px; }

/* header */
.top {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(12px);
  background: rgba(5, 7, 13, 0.78);
  border-bottom: 1px solid var(--line);
}
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 62px; }
.logo { font-family: var(--mono); font-weight: 700; letter-spacing: 0.08em; color: var(--text); }
.logo span { color: var(--cyan); text-shadow: 0 0 12px rgba(0, 229, 255, 0.7); }
.nav { display: flex; gap: 18px; font-size: 14px; font-family: var(--mono); }
.nav a { color: var(--muted); }
.nav a:hover { color: var(--cyan); text-decoration: none; }

/* hero */
.hero { padding: 88px 0 56px; }
.tag {
  display: inline-block; font: 600 12px/1 var(--mono); letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--cyan); border: 1px solid var(--line); border-radius: 999px; padding: 8px 14px;
  background: rgba(0, 229, 255, 0.06);
}
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.01em; }
.hero h1 { font-size: clamp(34px, 6vw, 62px); margin: 22px 0 18px; }
.grad {
  background: linear-gradient(90deg, var(--cyan), var(--violet) 60%, var(--lime));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { font-size: 19px; color: var(--muted); max-width: 640px; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin-top: 40px; }
.stat { border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; background: var(--panel); }
.stat b { display: block; font: 700 26px/1.1 var(--mono); color: var(--cyan); }
.stat small { color: var(--muted); font-size: 13px; }

/* cards */
.section { padding: 48px 0; }
.section-title { font: 600 13px/1 var(--mono); letter-spacing: 0.2em; text-transform: uppercase; color: var(--violet); margin-bottom: 18px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.card {
  position: relative; display: block; color: var(--text);
  border: 1px solid var(--line); border-radius: var(--radius); padding: 28px;
  background: linear-gradient(160deg, rgba(0, 229, 255, 0.07), rgba(155, 92, 255, 0.05) 60%, transparent), var(--panel);
  transition: transform .2s, border-color .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-3px); border-color: rgba(0, 229, 255, 0.5); box-shadow: 0 0 32px rgba(0, 229, 255, 0.12); text-decoration: none; }
.card .num { font: 700 13px/1 var(--mono); color: var(--lime); letter-spacing: 0.15em; }
.card h3 { font-size: 23px; margin: 14px 0 10px; }
.card p { color: var(--muted); margin: 0 0 18px; }
.card .more { font: 600 14px/1 var(--mono); color: var(--cyan); }

/* form */
.signup {
  border: 1px solid rgba(0, 229, 255, 0.35); border-radius: 20px; padding: 36px;
  background: radial-gradient(600px 240px at 100% 0, rgba(155, 92, 255, 0.2), transparent 70%), var(--panel);
  box-shadow: 0 0 60px rgba(0, 229, 255, 0.08) inset;
}
.signup h2 { margin: 0 0 8px; font-size: 28px; }
.signup p { color: var(--muted); margin: 0 0 22px; }
.row { display: flex; gap: 12px; flex-wrap: wrap; }
.row input[type=email] {
  flex: 1 1 260px; min-width: 0; padding: 15px 16px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--bg-2); color: var(--text); font: 16px var(--mono);
}
.row input[type=email]:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.18); }
.btn {
  display: inline-block; cursor: pointer; border: 0; border-radius: 10px; padding: 15px 24px;
  font: 700 15px/1 var(--mono); letter-spacing: 0.06em; text-transform: uppercase; color: #041018;
  background: linear-gradient(90deg, var(--cyan), var(--lime));
  box-shadow: 0 0 24px rgba(0, 229, 255, 0.35);
}
.btn:hover { filter: brightness(1.08); text-decoration: none; }
.btn.ghost { background: transparent; color: var(--cyan); border: 1px solid var(--cyan); box-shadow: none; }
.consent { display: flex; gap: 10px; align-items: flex-start; margin-top: 16px; font-size: 14px; color: var(--muted); }
.consent input { margin-top: 4px; accent-color: var(--cyan); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.msg { margin-top: 14px; font: 14px var(--mono); min-height: 1.2em; }
.msg.ok { color: var(--lime); }
.msg.err { color: var(--warn); }

/* article */
.article { padding: 56px 0 24px; }
.article h1 { font-size: clamp(30px, 5vw, 46px); margin: 18px 0 12px; }
.meta { font: 13px var(--mono); color: var(--muted); margin-bottom: 32px; }
.article h2 { font-size: 27px; margin: 44px 0 12px; padding-top: 8px; }
.article h2::before { content: "// "; color: var(--violet); font-family: var(--mono); }
.article h3 { font-size: 20px; margin: 28px 0 8px; color: var(--cyan); }
.article p, .article li { color: #c9d5e8; }
.article ul, .article ol { padding-left: 22px; }
.article li { margin: 6px 0; }
.note {
  border-left: 3px solid var(--warn); background: rgba(255, 181, 71, 0.07);
  padding: 14px 18px; border-radius: 0 10px 10px 0; margin: 24px 0; font-size: 15px;
}
.note.info { border-color: var(--cyan); background: rgba(0, 229, 255, 0.06); }
.table-wrap { overflow-x: auto; margin: 20px 0; }
table { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 520px; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font: 600 12px var(--mono); text-transform: uppercase; letter-spacing: 0.12em; color: var(--cyan); }
.check { list-style: none; padding: 0 !important; }
.check li { padding-left: 30px; position: relative; }
.check li::before { content: "▸"; position: absolute; left: 6px; color: var(--lime); }
.sources { font-size: 14px; }
.sources li { color: var(--muted); }

/* legal */
.legal h2 { font-size: 22px; }
.legal h2::before { content: ""; }

/* footer */
.foot { border-top: 1px solid var(--line); margin-top: 64px; padding: 32px 0 48px; font-size: 14px; color: var(--muted); }
.foot .wrap { display: grid; gap: 14px; }
.foot nav { display: flex; flex-wrap: wrap; gap: 18px; font-family: var(--mono); }
.foot nav a { color: var(--muted); }
.risk { font-size: 13px; line-height: 1.55; }

@media (max-width: 640px) {
  body { font-size: 16px; }
  .nav { display: none; }
  .hero { padding: 56px 0 36px; }
  .signup { padding: 24px; }
  .card { padding: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .card { transition: none; }
}