:root {
  --bg: #0d0e10;
  --bg-soft: #16181b;
  --fg: #ebeef2;
  --muted: #9aa3ad;
  --accent: #ff7a00;
  --accent-soft: #ffb872;
  --border: #232629;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

a { color: var(--accent-soft); text-decoration: none; }
a:hover { color: var(--accent); }
code { background: var(--bg-soft); padding: 0.05em 0.4em; border-radius: 4px; font-size: 0.92em; }

.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 2rem; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: rgba(13, 14, 16, 0.85);
  backdrop-filter: blur(8px); z-index: 10;
}
.brand { font-weight: 700; font-size: 1.25rem; color: var(--fg); }
.nav nav a { margin-left: 1.5rem; color: var(--muted); }
.nav nav a:hover { color: var(--fg); }
.nav nav a.cta { color: var(--accent); border: 1px solid var(--accent); padding: 0.4rem 0.9rem; border-radius: 999px; }
.nav nav a.cta:hover { background: var(--accent); color: #000; }

.hero {
  display: grid; grid-template-columns: 1fr 1fr; gap: 3rem;
  padding: 4rem 2rem; max-width: 1200px; margin: 0 auto; align-items: center;
}
.hero-img {
  width: 100%; border-radius: 18px;
  box-shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.7);
  border: 1px solid var(--border);
}
.hero-copy h1 { font-size: clamp(1.8rem, 3.5vw, 3rem); line-height: 1.1; margin: 0 0 1rem; }
.hero-copy .lede { font-size: 1.15rem; color: var(--muted); margin: 0 0 1.5rem; }
.row { display: flex; gap: 0.8rem; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 0.75rem 1.4rem; border-radius: 8px;
  border: 1px solid var(--border); color: var(--fg); font-weight: 500;
}
.btn:hover { border-color: var(--accent-soft); }
.btn.primary { background: var(--accent); color: #000; border-color: var(--accent); }
.btn.primary:hover { background: var(--accent-soft); color: #000; }

.grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem; padding: 2rem; max-width: 1200px; margin: 0 auto;
}
.grid article {
  background: var(--bg-soft); border: 1px solid var(--border);
  border-radius: 14px; padding: 1.5rem; display: flex; flex-direction: column;
}
.grid article img {
  width: 100%; border-radius: 10px; margin-bottom: 1rem;
  border: 1px solid var(--border);
}
.grid article h2 { font-size: 1.2rem; margin: 0 0 0.5rem; }
.grid article p { color: var(--muted); margin: 0; }

.callout {
  padding: 4rem 2rem; max-width: 900px; margin: 0 auto;
  border-top: 1px solid var(--border);
}
.callout.dark { background: var(--bg-soft); max-width: none; }
.callout > * { max-width: 900px; margin-left: auto; margin-right: auto; }
.callout h2 { font-size: 1.8rem; margin: 0 0 1rem; }
.callout p { font-size: 1.1rem; color: var(--muted); }

footer {
  padding: 2rem; text-align: center; color: var(--muted);
  border-top: 1px solid var(--border); margin-top: 2rem;
}

@media (max-width: 720px) {
  .hero { grid-template-columns: 1fr; padding: 2.5rem 1.25rem; }
  .nav { padding: 0.8rem 1rem; }
  .nav nav a { margin-left: 0.8rem; font-size: 0.9rem; }
  .nav nav a.cta { padding: 0.3rem 0.6rem; }
}