:root {
  color-scheme: dark;
  --ink: #f2f5f6;
  --muted: #b7c0c5;
  --background: #0b1115;
  --surface: #121c23;
  --surface-raised: #19262f;
  --blue: #3a83c5;
  --gold: #d39a3a;
  --gold-light: #f0bd61;
  --border: #35505f;
  --danger: #f18b86;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 80% 5%, rgba(58, 131, 197, .14), transparent 26rem),
    var(--background);
  color: var(--ink);
  font: 1rem/1.65 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: var(--gold-light); }
a:hover { color: white; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(211, 154, 58, .55);
  background: rgba(11, 17, 21, .96);
  backdrop-filter: blur(12px);
}
.nav-wrap {
  max-width: 74rem;
  margin: auto;
  padding: .55rem 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.brand { display: flex; align-items: center; color: white; text-decoration: none; flex: 0 0 auto; }
.brand img { width: 3.4rem; height: 3.4rem; object-fit: contain; }
.brand span { font-weight: 750; letter-spacing: .04em; }
.nav-links { display: flex; gap: .25rem; margin-left: auto; flex-wrap: wrap; justify-content: flex-end; }
.nav-links a {
  color: var(--muted);
  text-decoration: none;
  padding: .55rem .7rem;
  border-radius: .55rem;
  font-size: .9rem;
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: white; background: var(--surface-raised); }
.menu-button { display: none; margin-left: auto; color: white; background: var(--surface); border: 1px solid var(--border); padding: .6rem .8rem; border-radius: .55rem; }

main { max-width: 64rem; margin: auto; padding: 3.5rem 1.25rem 5rem; }
.hero { display: grid; grid-template-columns: 9rem 1fr; gap: 2rem; align-items: center; margin-bottom: 3rem; }
.hero img { width: 9rem; height: 9rem; object-fit: contain; }
.eyebrow { color: var(--gold-light); text-transform: uppercase; letter-spacing: .16em; font-size: .78rem; font-weight: 750; }
h1, h2, h3 { line-height: 1.2; color: white; }
h1 { font-size: clamp(2rem, 6vw, 3.4rem); margin: .25rem 0 1rem; }
h2 { margin-top: 2.5rem; font-size: 1.45rem; }
.lede { color: var(--muted); font-size: 1.12rem; max-width: 48rem; }
.effective { color: var(--muted); border-left: 3px solid var(--gold); padding-left: 1rem; }
.card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin-top: 2rem; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: .85rem; padding: 1.25rem; }
.card h2, .card h3 { margin-top: 0; }
.card p:last-child { margin-bottom: 0; }
.callout { background: rgba(58, 131, 197, .12); border: 1px solid var(--blue); border-radius: .85rem; padding: 1rem 1.2rem; }
.warning { background: rgba(241, 139, 134, .1); border-color: var(--danger); }
ul, ol { padding-left: 1.35rem; }
li + li { margin-top: .5rem; }
label { display: block; font-weight: 650; margin: 1rem 0 .35rem; }
input, textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: .55rem;
  background: #091015;
  color: white;
  padding: .75rem;
  font: inherit;
}
textarea { min-height: 8rem; resize: vertical; }
button, .button {
  display: inline-block;
  border: 0;
  border-radius: .6rem;
  background: var(--gold);
  color: #101418;
  font: inherit;
  font-weight: 750;
  padding: .75rem 1rem;
  text-decoration: none;
  cursor: pointer;
}
button:disabled { opacity: .45; cursor: not-allowed; }
.small { color: var(--muted); font-size: .9rem; }
footer { border-top: 1px solid var(--border); color: var(--muted); }
footer div { max-width: 64rem; margin: auto; padding: 1.5rem 1.25rem 3rem; }

@media (max-width: 54rem) {
  .menu-button { display: inline-block; }
  .nav-wrap { flex-wrap: wrap; }
  .nav-links { display: none; width: 100%; flex-direction: column; align-items: stretch; }
  .nav-links.open { display: flex; }
  .nav-links a { padding: .7rem; }
  .hero { grid-template-columns: 1fr; gap: 1rem; }
  .hero img { width: 7rem; height: 7rem; }
  .card-grid { grid-template-columns: 1fr; }
  main { padding-top: 2.25rem; }
}