:root {
  --bg: #0b0f16;
  --panel: #0f1420;
  --text: #e8eefc;
  --muted: #9aa6bf;
  --accent: #5aa2ff;
  --accent-2: #3dd1a7;
  --border: #1e2638;
  --shadow: 0 10px 30px rgba(0,0,0,.25);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Responsive container padding so brand/nav never touch edges */
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 640px){ .container { padding: 0 18px; } }
@media (max-width: 420px){ .container { padding: 0 14px; } }

/* Header & nav */
.header { position: sticky; top: 0; z-index: 20; backdrop-filter: saturate(140%) blur(8px);
  background: rgba(11,15,22,0.6); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }
.brand { font-weight: 800; letter-spacing: .2px; font-size: 18px; }
.brand a { color: var(--text); text-decoration: none; }
.nav { display:flex; align-items:center; gap: 8px; }
.nav a, .nav button { margin-left: 10px; color: var(--muted); background: transparent; border: 0; cursor: pointer; font: inherit; }
.nav a.active, .nav a:hover, .nav button:hover { color: var(--text); }
.nav .dropdown { position: relative; }
.nav .dropdown-menu {
  position: absolute; left: 0; top: 120%;
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px; min-width: 220px;
  padding: 8px; box-shadow: var(--shadow); display: none;
}
.nav .dropdown-menu a {
  display: block; padding: 8px 10px; margin: 0; color: var(--text); border-radius: 8px;
}
.nav .dropdown-menu a:hover { background: #111a2c; text-decoration: none; }
.nav .dropdown.open .dropdown-menu { display: block; }

/* Hero */
.hero {
  padding: 64px 0 40px;
  background: radial-gradient(1200px 600px at 10% -10%, rgba(90,162,255,0.15), transparent),
              radial-gradient(1000px 500px at 90% -20%, rgba(61,209,167,0.12), transparent);
  border-bottom: 1px solid var(--border);
}
.hero h1 { font-size: 40px; line-height: 1.15; margin: 0 0 10px; letter-spacing: .2px; }
.hero .subtitle {
  display:inline-block; margin: 6px 0 6px; padding: 6px 10px;
  background:#102038; border:1px solid var(--border); border-radius: 10px;
  font-weight: 700; letter-spacing: .2px;
}
.hero p { color: var(--muted); font-size: 18px; max-width: 820px; margin-top: 8px; }
.hero-bullets { margin: 14px 0 0; padding-left: 18px; color: var(--muted); }
.hero-bullets li { margin: 6px 0; }

/* Cards (shaded boxes) */
.grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 20px; }
.card { grid-column: span 12; background: var(--panel); border:1px solid var(--border);
  border-radius:16px; padding: 20px; box-shadow: var(--shadow); }
@media (min-width: 880px){ .card.half { grid-column: span 6; } }
.card h3 { margin: 0 0 6px; font-size: 22px; }
.card p { color: var(--muted); margin: 0 0 14px; }
.card .cta { display:flex; gap:10px; flex-wrap: wrap; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: transparent; color: var(--text); border: 1px solid var(--border);
  padding: 10px 14px; border-radius: 12px; cursor: pointer; font-weight: 600;
}
.btn:hover { filter: brightness(1.08); }
.btn.primary { background: var(--accent); border: 0; color: #fff; }
.btn.secondary { background: #222b42; color: var(--text); border: 1px solid var(--border); }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }

/* Sections, footer */
.section { padding: 36px 0; }
.section h2 { margin: 0 0 10px; font-size: 28px; }
.section p.lead { color: var(--muted); }
.footer { border-top: 1px solid var(--border); margin-top: 40px; padding: 18px 0; color: var(--muted); }
.footer .links { display:flex; gap:12px; flex-wrap: wrap; }
.footer .right { margin-left: auto; }
.footer-inner { display:flex; align-items:center; gap:12px; }

/* Utilities */
.kbd { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; background:#10182a; border:1px solid var(--border); padding:2px 6px; border-radius:6px; }
.list { margin: 0; padding-left: 18px; color: var(--muted); }
.notice { background:#0e172a; border:1px solid var(--border); padding:10px 12px; border-radius:10px; color: var(--muted); }
.form { max-width: 680px; }
input[type=text], input[type=email], textarea {
  width: 100%; padding: 12px 12px; border-radius: 10px; border:1px solid var(--border);
  background:#0b1222; color: var(--text); margin: 8px 0 14px; font-size: 15px;
}
textarea { min-height: 160px; resize: vertical; }
form .row { display:flex; gap:12px; }
form .row > * { flex: 1; }

@media (max-width: 560px){
  .nav a, .nav button { margin-left: 6px; }
}