:root {
  --bg: #faf8ff;
  --surface: #ffffff;
  --surface-alt: #f1f5f9;
  --surface-blue: #eef0ff;
  --text: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --border-light: rgba(226, 232, 240, 0.4);
  --primary: #2a72ed;
  --primary-dark: #1f5fc8;
  --primary-light: #d9e6fd;
  --primary-ghost: rgba(42, 114, 237, 0.07);
  --error-bg: #fef2f2;
  --error-text: #991b1b;
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.07);
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 248, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 1rem;
}
.brand { display: inline-flex; align-items: center; height: 44px; }
.brand img { height: 40px; width: auto; }
.nav-links {
  display: none;
  align-items: center;
  gap: 0.25rem;
}
.nav-link {
  font-size: 0.938rem;
  color: var(--text-secondary);
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  transition: color 0.15s, background 0.15s;
}
.nav-link:hover { color: var(--primary); background: var(--primary-ghost); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.625rem 1.5rem;
  font-family: var(--font);
  font-size: 0.938rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, box-shadow 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--primary-dark); box-shadow: var(--shadow-md); }
.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
}
.btn-secondary:hover { background: var(--surface-alt); border-color: #cbd5e1; }
.btn-sm { min-height: 40px; padding: 0.5rem 1.25rem; font-size: 0.875rem; }

.uc-hero { padding: 3rem 0 2.5rem; }
.uc-hero-eyebrow {
  display: inline-flex;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}
.uc-hero h1 {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  text-wrap: balance;
}
.uc-hero-lead {
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--text-secondary);
  max-width: 680px;
  margin-bottom: 1.5rem;
}
.uc-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.uc-hero-trust {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.section { padding: 3.5rem 0; }
.section-alt {
  background: var(--surface-alt);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}
.section-heading {
  font-size: clamp(1.375rem, 3vw, 1.875rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}
.section-heading-center { text-align: center; }
.section-sub {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 720px;
}
.section-sub-center { text-align: center; margin-left: auto; margin-right: auto; }
.section-top { margin-bottom: 2rem; }
.section-top-center { text-align: center; margin-bottom: 2rem; }

.prose p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 1rem;
}
.prose p:last-child { margin-bottom: 0; }

.problem-grid,
.features-grid,
.related-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
.problem-card,
.feature-card,
.related-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-xs);
}
.problem-card h3,
.feature-card h3,
.related-card h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.problem-card p,
.feature-card p,
.related-card p {
  font-size: 0.938rem;
  color: var(--text-secondary);
  line-height: 1.55;
}
.related-card a {
  color: var(--primary);
  font-weight: 600;
}
.related-card a:hover { text-decoration: underline; }

.check-list {
  list-style: none;
  display: grid;
  gap: 0.75rem;
  max-width: 760px;
}
.check-list li {
  position: relative;
  padding-left: 1.75rem;
  font-size: 0.975rem;
  color: var(--text-secondary);
  line-height: 1.55;
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45rem;
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  background: var(--primary);
}

.example-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
}
.example-box h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}
.example-box p {
  font-size: 0.975rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.disclaimer {
  margin-top: 1rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  background: var(--surface-alt);
  border: 1px solid var(--border);
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 760px;
  margin: 0 auto;
}
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
}
.faq-item h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  line-height: 1.4;
}
.faq-item p {
  font-size: 0.938rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.cta-band {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  border-radius: var(--radius-xl);
  padding: 2.5rem 1.75rem;
  text-align: center;
}
.cta-band h2 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.cta-band p {
  font-size: 1rem;
  opacity: 0.92;
  max-width: 520px;
  margin: 0 auto 1.5rem;
}
.cta-band-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}
.cta-band .btn-primary { background: #fff; color: var(--primary-dark); }
.cta-band .btn-primary:hover { background: var(--surface-alt); }
.cta-band .btn-secondary {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.45);
}
.cta-band .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.65);
}

@media (min-width: 768px) {
  .nav-links { display: flex; }
  .section { padding: 4.5rem 0; }
  .problem-grid,
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .related-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
  .features-grid--3 { grid-template-columns: repeat(3, 1fr); }
}