:root {
  color-scheme: light dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #0b1020;
  color: #eef2ff;
  font-synthesis: none;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 0%, rgba(99, 102, 241, .22), transparent 35rem),
    #0b1020;
}

a { color: inherit; }

.site-header,
main,
footer {
  width: min(1100px, calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  font-weight: 800;
  letter-spacing: -.04em;
  text-decoration: none;
}

nav { display: flex; gap: 1.25rem; }
nav a { color: #c7d2fe; text-decoration: none; }

.hero { padding: clamp(5rem, 13vw, 9rem) 0 4rem; max-width: 800px; }
.eyebrow { color: #a5b4fc; font-weight: 700; text-transform: uppercase; letter-spacing: .12em; font-size: .78rem; }
h1 { font-size: clamp(2.8rem, 8vw, 5.8rem); line-height: .98; letter-spacing: -.055em; margin: .75rem 0 1.5rem; }
.lede { color: #cbd5e1; font-size: clamp(1.05rem, 2vw, 1.35rem); line-height: 1.65; max-width: 680px; }

.concept-search { margin-top: 3rem; }
.concept-search label { display: block; font-weight: 700; margin-bottom: .65rem; }
.search-row { display: flex; gap: .75rem; }
input, button { border: 1px solid #334155; border-radius: .75rem; font: inherit; padding: .9rem 1rem; }
input { flex: 1; background: #111827; color: inherit; }
button { background: #4f46e5; color: white; font-weight: 700; }
input:disabled, button:disabled { opacity: .55; cursor: not-allowed; }
.hint { color: #94a3b8; font-size: .9rem; }

.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; padding: 2rem 0 6rem; }
.product-grid article { border: 1px solid #253047; border-radius: 1rem; padding: 1.5rem; background: rgba(15, 23, 42, .72); }
.product-grid h2 { margin-top: 0; font-size: 1.1rem; }
.product-grid p { margin-bottom: 0; color: #aebbd0; line-height: 1.55; }

footer { border-top: 1px solid #253047; padding: 1.5rem 0 2.5rem; color: #94a3b8; display: flex; justify-content: space-between; gap: 1rem; font-size: .9rem; }

@media (max-width: 700px) {
  .product-grid { grid-template-columns: 1fr; }
  .search-row { flex-direction: column; }
  footer { flex-direction: column; }
}