:root {
  color-scheme: light;
  --bg: #f6f7f8;
  --bg-muted: #edf0f2;
  --text: #22252c;
  --accent: #4a6fa5;
  --accent-dark: #3b5d88;
  --border: #d5d9dd;
  font-family: "Inter", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  line-height: 1.6;
}

.container {
  width: min(960px, 92vw);
  margin: 0 auto;
}

.site-header {
  background: white;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  font-weight: 600;
  letter-spacing: 0.04em;
}

.main-nav a {
  margin-left: 1.5rem;
  text-decoration: none;
  color: inherit;
  font-size: 0.95rem;
}

.hero {
  padding: 6rem 0 5rem;
  background: linear-gradient(160deg, white 0%, var(--bg-muted) 100%);
  text-align: left;
}

.hero h1 {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  margin-bottom: 0.75rem;
}

.hero p {
  max-width: 560px;
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

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

.cta {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: 999px;
  background: var(--accent);
  color: white;
  text-decoration: none;
  transition: background 150ms ease;
}

.cta.secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.cta:hover,
.cta:focus {
  background: var(--accent-dark);
}

.cta.secondary:hover,
.cta.secondary:focus {
  background: var(--accent);
  color: white;
}

.section {
  padding: 4rem 0;
}

.section h2 {
  font-size: 1.9rem;
  margin-bottom: 1rem;
}

.section p {
  max-width: 620px;
}

.section.muted {
  background: var(--bg-muted);
}

.feature-grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.download-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.download-grid article {
  background: white;
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 10px 30px rgba(36, 48, 77, 0.08);
}

.download-grid .cta {
  margin-top: 1.5rem;
}

.workflow-steps {
  padding-left: 1.25rem;
  max-width: 720px;
}

.workflow-steps li {
  margin-bottom: 1rem;
}

.workflow-steps code {
  background: rgba(74, 111, 165, 0.1);
  padding: 0.1rem 0.35rem;
  border-radius: 6px;
}

.feature-grid article h3 {
  margin-bottom: 0.5rem;
  font-size: 1.2rem;
}

.note {
  color: #5b6470;
  font-size: 0.95rem;
}

.contact-card {
  text-align: center;
}

.contact-card .cta {
  margin-top: 1.5rem;
}

.site-footer {
  padding: 2rem 0;
  font-size: 0.9rem;
  color: #6b717b;
  border-top: 1px solid var(--border);
  background: white;
}

@media (max-width: 640px) {
  .site-header .container {
    flex-direction: column;
    gap: 1rem;
  }

  .main-nav a {
    margin: 0 0.75rem;
  }

  .hero {
    text-align: center;
  }

  .hero p {
    margin-inline: auto;
  }

  .cta-group {
    justify-content: center;
  }
}