/* Base reset & fonts */
* { box-sizing: border-box; }
html:focus-within { scroll-behavior: smooth; }
:root {
    --black: #0A0A0A;
    --white: #FFFFFF;
    --gray: #cac7c7;
    --accent: #1F6FEB;
    --whiteSmoke: #dbd6d6;
}
@media (prefers-reduced-motion: reduce) {
  html:focus-within { scroll-behavior: auto; }
  *,
  *::before,
  *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}
body {
    font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.65;
    margin: 0;
    color: var(--black);
    background: var(--whiteSmoke);
}
a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
.skip-link {
  position: absolute; left: -9999px; top: auto; width: 1px; height: 1px; overflow: hidden;
}
.skip-link:focus { position: static; width: auto; height: auto; padding: .5rem; background: var(--accent); color: white; display: inline-block; }

/* Layout */
header, footer {
  background: var(--gray);
  padding: 1.25rem 1rem;
}
header .brand { font-weight: 700; font-size: 1.75rem; margin: .25rem 0; }
header .tagline { margin: 0 0 .5rem; color: #444; }
nav { margin-top: .25rem; }
nav a { text-decoration: none; margin: 0 .5em; }
nav a:hover { text-decoration: underline; }

main { padding: 2rem 1rem; max-width: 960px; margin: 0 auto; }
h1, h2, h3 { line-height: 1.25; margin: 0 0 .5rem; }
h1 { font-size: 2.25rem; }
h2 { font-size: 1.5rem; margin-top: 2rem; }
h3 { font-size: 1.125rem; }

.small { color: #5a5a5a; font-size: .95rem; }

/* Hero */
.hero { text-align: center; padding: 1rem 0 0; }
.hero .micro { font-style: italic; color: #333; margin: .5rem 0 1rem; }
.ctas { display: flex; gap: .75rem; justify-content: center; flex-wrap: wrap; }
.button {
  background: var(--accent);
  color: white;
  padding: .6em 1.1em;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform .05s ease-in-out, box-shadow .15s ease-in-out;
}
.button:hover { box-shadow: 0 4px 14px rgba(31,111,235,.25); }
.button:active { transform: translateY(1px); }
.button.secondary {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1rem;
}
.card {
  border: 1px solid #e5e5e5;
  padding: 1rem;
  border-radius: 12px;
  background: #fafafa;
}
.card h3 { margin-top: 0; }
.card p { margin: .25rem 0 .5rem; color: #222; }
.card ul { margin: 0; padding-left: 1.1rem; }
.card li { margin: .25rem 0; }

.footnote { text-align: center; font-size: .95rem; color: #555; margin-top: .5rem; }

blockquote {
  font-style: italic;
  border-left: 4px solid #d0d0d0;
  padding-left: 1rem;
  margin: 1.5rem 0;
}

/* CTA section */
.cta {
  background: var(--gray);
  padding: 1.25rem;
  border-radius: 12px;
  text-align: center;
}

/* Footer */
footer { text-align: center; font-size: .95rem; }
footer a { color: inherit; }

/* Responsive */
@media (min-width: 768px) {
  .cards { grid-template-columns: repeat(3, 1fr); }
  h1 { font-size: 3rem; }
  h2 { font-size: 1.75rem; }
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
  body { background: #0A0A0A; color: #fafafa; }
  header, footer, .cta { background: #111315; }
  .card { background: #14161a; border-color: #23262d; }
  .small, .hero .micro, .card p, .footnote { color: #d0d0d0; }
  blockquote { border-left-color: #2c313a; }
  nav a { color: #e8e8e8; }
}