/* Basic reset */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: #1f2937; /* slate-800 */
  background: linear-gradient(180deg, #ffffff, #f3f4f6);
}

:root {
  --max-width: 860px;
  --pad: 20px;
  --link: #0f766e; /* teal-700 */
  --link-hover: #115e59; /* teal-800 */
  --muted: #6b7280; /* gray-500 */
}

.container {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  align-items: center;
  justify-items: center;
  padding: var(--pad);
}

.header { width: 100%; display: flex; justify-content: center; }
.logo {
  width: min(360px, 70vw);
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 2px 12px rgba(0,0,0,.06));
}

.content {
  width: 100%;
  max-width: var(--max-width);
  text-align: center;
}

.lead {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  line-height: 1.6;
  margin: 18px auto 12px;
}

.secondary {
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  line-height: 1.6;
  color: var(--muted);
  margin: 0 auto 22px;
}

.link {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.link:hover, .link:focus { color: var(--link-hover); }

.social {
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: center;
  margin-top: 8px;
}

.social-link {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  color: #1f2937;
  background: white;
  border: 1px solid #e5e7eb; /* gray-200 */
  border-radius: 999px;
  box-shadow: 0 2px 8px rgba(0,0,0,.05);
  transition: transform .12s ease, box-shadow .12s ease, border-color .12s ease;
}
.social-link:hover, .social-link:focus {
  transform: translateY(-1px);
  border-color: #cbd5e1; /* slate-300 */
  box-shadow: 0 6px 16px rgba(0,0,0,.08);
}

.footer { margin-top: 22px; color: #9ca3af; }
.footer small { font-size: 0.9rem; }

/* Larger screens: keep content vertically balanced */
@media (min-width: 1024px) {
  .container { padding: 40px; }
  .lead { margin-top: 24px; }
}