/* System font stack, high contrast, accessible focus */
:root {
  --bg: #ffffff;
  --fg: #0a0a0a;
  --muted: #404040;
  --border: #e6e6e6;
  --primary: #1345ef;
  --primary-pressed: #0f39c5;
  --shadow: 0 1px 2px rgba(0,0,0,0.06), 0 2px 8px rgba(0,0,0,0.06);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0a0a;
    --fg: #f2f2f2;
    --muted: #c9c9c9;
    --border: #2a2a2a;
    --primary: #6da3ff;
    --primary-pressed: #98bdff;
    --shadow: none;
  }
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", sans-serif;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
.wrap {
  width: 100%;
  max-width: 72rem;
  margin: 0 auto;
  padding: 1.25rem;
}
.site-header, .site-footer {
  border-bottom: 1px solid var(--border);
}
.site-footer {
  border-top: 1px solid var(--border);
  border-bottom: 0;
  margin-top: 2rem;
}
.brand {
  display: inline-block;
  font-weight: 700;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: 0.2px;
}
.hero .subtext {
  margin: 0.75rem 0 1.25rem 0;
  color: var(--muted);
  max-width: 65ch;
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 2.75rem;
  padding: 0 1rem;
  border-radius: 0.5rem;
  border: 1px solid transparent;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 120ms ease, color 120ms ease, border-color 120ms ease, transform 60ms ease;
  box-shadow: var(--shadow);
}
.button:focus-visible, .brand:focus-visible, a:focus-visible, .skip-link:focus {
  outline: 3px solid #ffae00;
  outline-offset: 2px;
}
.button.primary {
  background: var(--primary);
  color: #fff;
}
.button.primary:hover { filter: brightness(1.05); }
.button.primary:active { transform: translateY(1px); background: var(--primary-pressed); }
.button.secondary {
  background: transparent;
  color: var(--fg);
  border-color: var(--border);
}
.privacy-note {
  margin-top: 0.75rem;
  color: var(--muted);
  font-size: 0.95rem;
}
.hero {
  padding: 2rem 0 1rem 0;
}
h1 {
  margin: 0.25rem 0 0.5rem 0;
  font-size: clamp(1.6rem, 4.5vw, 2.2rem);
  line-height: 1.2;
}
h2 {
  margin: 2rem 0 0.75rem 0;
  font-size: clamp(1.2rem, 3.5vw, 1.5rem);
}
.feature-list {
  margin: 0;
  padding-left: 1.25rem;
}
.feature-list li {
  margin: 0.3rem 0;
}
.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip-link:focus {
  position: static;
  width: auto;
  height: auto;
  margin: 0.5rem;
  display: inline-block;
  background: #fffae6;
  color: #1a1a1a;
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
}

/* Layout niceties on larger screens */
@media (min-width: 720px) {
  .hero { padding: 3rem 0 1.5rem 0; }
  .cta-row { gap: 1rem; }
}