:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --text: #1e2933;
  --muted: #5f6f7d;
  --accent: #0b5cab;
  --accent-soft: #dbeafb;
  --border: #d8dee6;
  --shadow: 0 14px 35px rgba(23, 42, 58, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Source Sans 3", "Segoe UI", "Helvetica Neue", sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #f3f6fa 0%, #f8f9fb 160px, #f7f8fa 100%);
  line-height: 1.6;
}

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

.container {
  width: min(980px, 92%);
  margin: 0 auto;
}

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

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 68px;
}

.brand {
  text-decoration: none;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.01em;
}

.nav-list {
  list-style: none;
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0;
}

.nav-list a {
  text-decoration: none;
  color: var(--muted);
  padding: 8px 12px;
  border-radius: 8px;
  font-weight: 600;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  background: var(--accent-soft);
  color: var(--accent);
  outline: none;
}

.nav-list a.active {
  color: var(--accent);
  background: var(--accent-soft);
}

main {
  padding: 44px 0 54px;
}

.hero {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 26px;
  box-shadow: var(--shadow);
}

.eyebrow {
  display: inline-block;
  margin: 0;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
}

h1,
h2,
h3 {
  line-height: 1.25;
  margin-top: 0;
}

h1 {
  margin: 14px 0 12px;
  font-size: clamp(1.75rem, 3vw, 2.2rem);
}

section + section {
  margin-top: 30px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

.card-link {
  display: inline-block;
  margin-top: 10px;
  font-weight: 700;
  text-decoration: none;
}

.card-link:hover,
.card-link:focus-visible {
  text-decoration: underline;
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 18px;
}

.app-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
  box-shadow: var(--shadow);
}

.tag-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.tag {
  display: inline-block;
  margin: 0;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.78rem;
  line-height: 1.25;
}

.doc-list {
  margin: 12px 0 0;
  padding-left: 20px;
}

.doc-list li + li {
  margin-top: 6px;
}

.doc-list a {
  font-weight: 700;
}

.content-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.list {
  padding-left: 20px;
}

.muted {
  color: var(--muted);
}

.faq-item + .faq-item {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.footer-wrap {
  padding: 18px 0 26px;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  justify-content: space-between;
}

@media (max-width: 680px) {
  .nav-wrap {
    flex-direction: column;
    align-items: flex-start;
    padding: 12px 0;
  }

  .nav-list {
    width: 100%;
    gap: 4px;
    justify-content: space-between;
  }

  .nav-list a {
    display: inline-block;
    padding: 8px 10px;
  }

  main {
    padding-top: 28px;
  }

  .hero,
  .content-panel {
    padding: 20px;
  }
}