:root {
  --bg: #181C24;
  --bg-soft: #1F2530;
  --card: #222937;
  --line: #2E3644;
  --text: #F5F7FA;
  --muted: #9AA4B2;
  --orange: #FB7803;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header / nav */
header {
  border-bottom: 1px solid var(--line);
  background: rgba(24, 28, 36, 0.9);
  backdrop-filter: saturate(140%) blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { height: 26px; width: auto; display: block; }
.brand span { font-weight: 700; font-size: 20px; letter-spacing: -0.02em; }
.navlinks { display: flex; gap: 22px; font-size: 15px; }
.navlinks a { color: var(--muted); }
.navlinks a:hover { color: var(--text); text-decoration: none; }

/* Hero */
.hero { text-align: center; padding: 88px 0 64px; }
.hero img.mark { height: 64px; margin-bottom: 28px; }
.hero h1 { font-size: 44px; line-height: 1.1; letter-spacing: -0.03em; margin: 0 0 16px; }
.hero p { font-size: 19px; color: var(--muted); max-width: 540px; margin: 0 auto 32px; }
.btn {
  display: inline-block;
  background: var(--orange);
  color: #150F06;
  font-weight: 700;
  padding: 13px 26px;
  border-radius: 12px;
  font-size: 16px;
}
.btn:hover { text-decoration: none; opacity: 0.92; }

/* Feature grid */
.features { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; padding: 24px 0 80px; }
.feature {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
}
.feature h3 { margin: 0 0 6px; font-size: 17px; }
.feature p { margin: 0; color: var(--muted); font-size: 15px; }
.feature .ic { font-size: 22px; margin-bottom: 10px; }

/* Content pages */
.page { padding: 56px 0 96px; }
.page h1 { font-size: 34px; letter-spacing: -0.02em; margin: 0 0 8px; }
.page .updated { color: var(--muted); font-size: 14px; margin: 0 0 36px; }
.page h2 { font-size: 20px; margin: 40px 0 10px; }
.page p, .page li { color: #D6DBE3; font-size: 16px; }
.page ul { padding-left: 22px; }
.page li { margin-bottom: 8px; }
.contact-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 24px 26px;
  margin-top: 8px;
}

/* Footer */
footer {
  border-top: 1px solid var(--line);
  padding: 32px 0;
  color: var(--muted);
  font-size: 14px;
}
.foot { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.foot a { color: var(--muted); }
.foot a:hover { color: var(--text); text-decoration: none; }

@media (max-width: 640px) {
  .features { grid-template-columns: 1fr; }
  .hero h1 { font-size: 34px; }
  .navlinks { gap: 16px; font-size: 14px; }
}