:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --text: #162033;
  --muted: #5b6473;
  --line: #e4e9f2;
  --primary: #1a73e8;
  --primary-dark: #0d56bb;
  --soft: #f1f5fb;
  --shadow: 0 10px 30px rgba(17, 24, 39, 0.06);
  --max: 1000px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

img { max-width: 100%; }

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}

.header {
  background: rgba(255,255,255,0.9);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  backdrop-filter: blur(10px);
  z-index: 10;
}

.nav {
  min-height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo {
  color: var(--text);
  font-weight: 800;
  font-size: 1.15rem;
}

nav {
  display: flex;
  gap: 18px;
  align-items: center;
}

nav a {
  color: var(--text);
  font-size: 0.95rem;
}

.hero {
  padding: 70px 0 30px;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 12px;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  font-weight: 700;
}

.hero h1, .page h1 {
  font-size: clamp(2.1rem, 5vw, 3.3rem);
  line-height: 1.15;
  margin: 0 0 14px;
}

.lead {
  color: var(--muted);
  font-size: 1.06rem;
  max-width: 760px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.button {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  padding: 10px 16px;
  border-radius: 9px;
  font-weight: 700;
  transition: 0.2s ease;
}

.button:hover {
  background: var(--primary-dark);
  text-decoration: none;
}

.button-small {
  padding: 8px 12px;
  font-size: 0.92rem;
}

.button-secondary {
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--text);
}

.button-secondary:hover {
  background: var(--soft);
  text-decoration: none;
}

.section {
  padding: 28px 0 48px;
}

.section-head {
  margin-bottom: 16px;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
}

.two-col {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

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

.card h3 {
  margin-top: 0;
  margin-bottom: 8px;
}

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

.info-box {
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 20px;
}

.info-box ul {
  margin: 0;
  padding-left: 20px;
  color: var(--text);
}

.small-box {
  margin-top: 22px;
  max-width: 700px;
}

.page {
  padding-top: 42px;
  min-height: 60vh;
}

.back-link {
  display: inline-block;
  margin-bottom: 22px;
}

.download-list {
  display: grid;
  gap: 12px;
  margin-top: 24px;
  max-width: 720px;
}

.download-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
  color: var(--text);
}

.download-item strong {
  color: var(--primary);
  font-size: 0.9rem;
}

.single-card {
  max-width: 620px;
}

.footer {
  border-top: 1px solid var(--line);
  margin-top: 20px;
}

.footer-inner {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
}

@media (max-width: 640px) {
  nav {
    gap: 12px;
    font-size: 0.9rem;
  }

  .hero {
    padding-top: 60px;
  }

  .footer-inner {
    flex-direction: column;
    justify-content: center;
    padding: 12px 0;
  }
}