*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --bg: #fafafa;
  --bg-alt: #ffffff;
  --text: #171717;
  --muted: #525252;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --border: #e5e5e5;
  --radius: 8px;
  --max-width: 720px;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

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

.site-header {
  position: sticky;
  top: 0;
  background: rgba(250, 250, 250, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
}

.logo {
  font-weight: 600;
  font-size: 1.05rem;
}

.hero {
  padding: 4rem 0 3rem;
}

.eyebrow {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 0.75rem;
}

.hero h1 {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 1rem;
}

.lead {
  font-size: 1.125rem;
  color: var(--muted);
  margin: 0 0 1.5rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-block;
  padding: 0.625rem 1.25rem;
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  color: #fff;
  background: var(--accent);
  border-radius: var(--radius);
  transition: background 0.15s ease;
}

.btn:hover {
  background: var(--accent-hover);
}

.btn-small {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

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

.btn-ghost:hover {
  background: var(--bg-alt);
  border-color: var(--muted);
}

.section {
  padding: 3rem 0;
}

.section-alt {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 0.75rem;
}

.section p {
  margin: 0;
  color: var(--muted);
}

.metrics {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 1rem;
}

.metrics li {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.metrics strong {
  font-size: 1.5rem;
  color: var(--text);
}

.metrics span {
  font-size: 0.875rem;
  color: var(--muted);
}

#contact a {
  color: var(--accent);
}

.site-footer {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  font-size: 0.875rem;
  color: var(--muted);
}

.site-footer p {
  margin: 0;
}

@media (min-width: 640px) {
  .metrics {
    grid-template-columns: repeat(3, 1fr);
  }
}