:root {
  --bg: #07090f;
  --card: rgba(14, 18, 27, 0.82);
  --line: rgba(255, 255, 255, 0.08);
  --text: #eef2ff;
  --muted: #94a3b8;
  --sky: #38bdf8;
  --violet: #a78bfa;
  --ok: #34d399;
  --danger: #fb7185;
  --radius: 18px;
  --font: "DM Sans", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
}

.bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(1000px 500px at 12% -8%, rgba(56, 189, 248, 0.16), transparent 55%),
    radial-gradient(800px 420px at 100% 0%, rgba(167, 139, 250, 0.14), transparent 50%),
    radial-gradient(600px 400px at 50% 100%, rgba(52, 211, 153, 0.06), transparent 50%),
    var(--bg);
}

.top {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.logo {
  width: 28px;
  height: 28px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--sky), var(--violet));
  box-shadow: 0 8px 20px rgba(56, 189, 248, 0.35);
}
nav { display: flex; gap: 16px; }
nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
}
nav a:hover { color: var(--text); }

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 28px 20px 64px;
}

.hero { padding: 28px 0 12px; }
.eyebrow {
  color: var(--sky);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 0 0 12px;
}
.hero h1 {
  font-size: clamp(1.8rem, 4.5vw, 2.7rem);
  line-height: 1.12;
  letter-spacing: -0.035em;
  margin: 0 0 14px;
  font-weight: 700;
}
.hero h1 span {
  background: linear-gradient(120deg, #fff 0%, #7dd3fc 40%, #c4b5fd 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.lede {
  color: var(--muted);
  max-width: 54ch;
  margin: 0 0 22px;
  font-size: 1.05rem;
}
.lede strong { color: var(--text); font-weight: 600; }

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 12px;
  padding: 12px 18px;
  font: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}
.btn:active { transform: translateY(1px); }
.btn.primary {
  color: #fff;
  background: linear-gradient(135deg, #0ea5e9, #6366f1);
  box-shadow: 0 10px 28px rgba(14, 165, 233, 0.28);
}
.btn.primary:hover { box-shadow: 0 12px 32px rgba(99, 102, 241, 0.35); }
.btn.ghost {
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--line);
}
.btn.ghost:hover { background: rgba(255, 255, 255, 0.06); }

.chips {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chips li {
  font-size: 0.8rem;
  color: var(--muted);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
  border-radius: 999px;
  padding: 6px 12px;
  font-family: var(--mono);
}

.card {
  margin-top: 28px;
  padding: 22px 22px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--card);
  backdrop-filter: blur(10px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
}
.card h2 {
  margin: 0 0 14px;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}
.card h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}
.card p { margin: 0; color: var(--muted); font-size: 0.95rem; }

.steps {
  margin: 0 0 18px;
  padding-left: 1.2rem;
  color: var(--muted);
}
.steps li { margin-bottom: 10px; }
.steps strong { color: var(--text); }
.steps em { color: #cbd5e1; font-style: normal; }
.steps code {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--sky);
  background: rgba(56, 189, 248, 0.08);
  padding: 1px 6px;
  border-radius: 6px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
}
.field span {
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 500;
}
.field input {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.35);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.9rem;
  padding: 14px 14px;
  outline: none;
}
.field input:focus {
  border-color: rgba(56, 189, 248, 0.45);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.12);
}
.field input::placeholder { color: #475569; }

.hint {
  margin: 8px 0 0;
  color: #64748b;
  font-size: 0.88rem;
}
.error {
  margin: 10px 0 0;
  color: var(--danger);
  font-size: 0.9rem;
}

.grid {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.card.mini { margin-top: 0; padding: 18px; }

footer {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px 40px;
  color: #64748b;
  font-size: 0.85rem;
}
footer a { color: var(--sky); text-decoration: none; }

@media (max-width: 760px) {
  .grid { grid-template-columns: 1fr; }
  nav { display: none; }
  .hero h1 { font-size: 1.75rem; }
}