:root {
  --bg: #fafafa;
  --bg-elevated: #ffffff;
  --text: #16161a;
  --text-muted: #5b5b63;
  --border: #e6e6e9;
  --accent: #16161a;
  --accent-contrast: #ffffff;
  --radius: 14px;
  --max-width: 760px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0b0d;
    --bg-elevated: #16161a;
    --text: #f4f4f5;
    --text-muted: #a1a1aa;
    --border: #262629;
    --accent: #f4f4f5;
    --accent-contrast: #0b0b0d;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(to right, var(--border) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.35;
  mask-image: radial-gradient(circle at 50% 0%, black, transparent 70%);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
  backdrop-filter: blur(6px);
}

.brand {
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text);
  text-decoration: none;
  font-size: 0.95rem;
}

.nav {
  display: flex;
  gap: 1.5rem;
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.15s ease;
}

.nav a:hover {
  color: var(--text);
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.hero {
  padding: 5rem 0 4rem;
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.25rem, 6vw, 3.25rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.tagline {
  margin: 0 0 2rem;
  color: var(--text-muted);
  font-size: 1.15rem;
  max-width: 34ch;
}

.cta-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-contrast);
}

.btn-ghost {
  color: var(--text);
  border: 1px solid var(--border);
}

.section {
  padding: 3rem 0;
  border-top: 1px solid var(--border);
}

.section h2 {
  margin: 0 0 1rem;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
}

.section p {
  color: var(--text-muted);
  max-width: 60ch;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.card p {
  margin: 0;
  font-size: 0.92rem;
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.contact-list a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.1rem;
}

.contact-list a:hover {
  border-color: var(--text);
}

.site-footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}