:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #dbeafe;
  --text: #1f2937;
  --text-muted: #6b7280;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --border: #e5e7eb;
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

a:hover {
  text-decoration: underline;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header.site-header {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  z-index: 10;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  gap: 24px;
  font-weight: 500;
  font-size: 15px;
}

/* Hero */
.hero {
  padding: 64px 0 48px;
  text-align: center;
  background: linear-gradient(180deg, var(--primary-light) 0%, var(--bg) 100%);
}

.hero img.hero-logo {
  width: 92px;
  height: 92px;
  border-radius: 22px;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.25);
  margin-bottom: 20px;
}

.hero h1 {
  font-size: 38px;
  margin: 0 0 12px;
}

.hero p.subtitle {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 28px;
}

.btn-row {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

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

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

.btn-outline:hover {
  border-color: var(--primary);
  text-decoration: none;
}

/* Sections */
section {
  padding: 56px 0;
}

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

h2.section-title {
  font-size: 28px;
  text-align: center;
  margin: 0 0 36px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}

.feature-card .icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 14px;
}

.feature-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
}

.feature-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 14.5px;
}

.privacy-callout {
  background: var(--primary-light);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
}

.privacy-callout h2 {
  margin-top: 0;
}

/* Privacy policy page */
.policy-meta {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 32px;
}

.policy-section {
  margin-bottom: 28px;
}

.policy-section h2 {
  font-size: 19px;
  color: var(--primary-dark);
  margin: 0 0 8px;
}

.policy-section p,
.policy-section li {
  color: var(--text);
  font-size: 15.5px;
}

.contact-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-top: 16px;
}

/* Footer */
footer.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
}

footer.site-footer a {
  color: var(--text-muted);
}

@media (max-width: 600px) {
  .hero h1 {
    font-size: 30px;
  }

  .nav-links {
    gap: 14px;
    font-size: 14px;
  }
}