:root {
  --bg:    #0f172a;
  --bg-2:  #1e293b;
  --bg-3:  #243049;
  --fg:    #e2e8f0;
  --muted: #94a3b8;
  --accent:#60a5fa;
  --grad-1:#22d3ee;
  --grad-2:#a855f7;
  --grad-3:#34d399;
  --border:#334155;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

nav {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
}
nav .brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 600; letter-spacing: 0.5px;
  flex: 1;
}
nav .nav-link { color: var(--muted); }
nav .nav-link:hover { color: var(--fg); }

.hero {
  padding: 64px 24px 56px;
  text-align: center;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(34,211,238,0.15), transparent 60%),
    radial-gradient(ellipse at 80% 60%, rgba(168,85,247,0.18), transparent 60%),
    radial-gradient(ellipse at 50% 90%, rgba(52,211,153,0.10), transparent 60%);
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.15;
  margin: 24px 0 16px;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.hero .grad {
  background: linear-gradient(90deg, var(--grad-1), var(--grad-2), var(--grad-3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero .lede {
  max-width: 640px;
  margin: 0 auto 32px;
  color: var(--muted);
  font-size: 1.05rem;
}
.cta {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn.primary {
  background: var(--accent);
  color: #0b1220;
}
.btn.primary:hover { background: #93c5fd; text-decoration: none; }
.btn.ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--fg);
}
.btn.ghost:hover { background: var(--bg-2); text-decoration: none; }
.btn.small { padding: 8px 14px; font-size: 13px; }
.subtle { color: var(--muted); font-size: 14px; margin-top: 8px; }

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  max-width: 980px;
  margin: 24px auto;
  padding: 0 24px;
}
.feature {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px 22px;
}
.feature h3 { margin: 0 0 8px; font-size: 17px; }
.feature p { color: var(--muted); margin: 0; }

.download {
  max-width: 760px;
  margin: 56px auto;
  padding: 0 24px;
}
.download h2 { font-size: 24px; margin-bottom: 10px; }
.dl-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 10px;
}
.dl-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 18px;
}

footer {
  border-top: 1px solid var(--border);
  padding: 24px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

/* Article pages (privacy / terms) */
article.legal {
  max-width: 760px;
  margin: 40px auto 80px;
  padding: 0 24px;
}
article.legal h1 { font-size: 28px; margin-bottom: 4px; }
article.legal .meta { color: var(--muted); margin-bottom: 24px; font-size: 14px; }
article.legal h2 { font-size: 18px; margin-top: 32px; }
article.legal h3 { font-size: 16px; margin-top: 24px; color: var(--accent); }
article.legal p, article.legal li { color: var(--fg); }
article.legal ul { padding-left: 22px; }
article.legal a { color: var(--accent); }