/*
 * Borderline Genius – basic landing page styles
 */

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
  color: #e6eef8;
  background: #071025; /* solid dark navy background */
}

main.bg-slate {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem;
}

.hero {
  width: 100%;
  max-width: 960px;
  background: rgba(15, 23, 42, 0.9);
  border-radius: 1.75rem;
  box-shadow:
    0 30px 80px rgba(15, 23, 42, 0.85),
    0 0 0 1px rgba(148, 163, 184, 0.25);
  padding: 2.75rem 2.5rem 2.5rem;
  box-sizing: border-box;
  color: #e5e7eb;
}

@media (min-width: 768px) {
  .hero {
    padding: 3.25rem 3rem 3rem;
  }
}

.hero-header {
  text-align: left;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.85rem;
  border-radius: 999px;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(15, 118, 110, 0.18);
  color: #a5f3fc;
  border: 1px solid rgba(34, 211, 238, 0.6);
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(2.4rem, 4vw, 3.4rem);
  letter-spacing: -0.04em;
  margin: 0 0 0.75rem;
  color: #f9fafb;
}

.subtitle {
  margin: 0;
  max-width: 40rem;
  font-size: 1rem;
  line-height: 1.7;
  color: #cbd5f5;
}

.subtitle .highlight {
  color: #f97316;
  font-weight: 600;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.9rem;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    transform 150ms ease,
    box-shadow 150ms ease,
    background 150ms ease,
    color 150ms ease,
    border-color 150ms ease;
}

.btn-primary {
  background: linear-gradient(135deg, #22c55e, #a3e635);
  color: #052e16;
  box-shadow: 0 12px 30px rgba(34, 197, 94, 0.45);
}

.btn-primary[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.9;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 40px rgba(34, 197, 94, 0.55);
}

.btn-secondary {
  background: transparent;
  color: #bfdbfe;
  border-color: rgba(148, 163, 184, 0.7);
}

.btn-secondary:hover {
  background: rgba(15, 23, 42, 0.8);
  border-color: rgba(148, 163, 184, 1);
}

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 2.5rem;
}

@media (min-width: 768px) {
  .card-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.card {
  background: radial-gradient(circle at top left, rgba(248, 250, 252, 0.1), transparent 55%),
    rgba(15, 23, 42, 0.9);
  border-radius: 1.1rem;
  padding: 1.25rem 1.15rem;
  border: 1px solid rgba(148, 163, 184, 0.4);
  box-shadow: 0 14px 35px rgba(15, 23, 42, 0.85);
}

.card h2 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
  color: #e5e7eb;
}

.card p {
  margin: 0;
  font-size: 0.9rem;
  color: #cbd5e1;
}

.metrics {
  margin-top: 2.4rem;
  padding-top: 1.7rem;
  border-top: 1px solid rgba(148, 163, 184, 0.4);
}

.metrics h2 {
  margin: 0 0 0.75rem;
  font-size: 1.05rem;
  color: #e5e7eb;
}

.metrics ul {
  list-style: none;
  padding-left: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.metrics li {
  font-size: 0.85rem;
  color: #cbd5e1;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.5);
}

.teaser {
  margin-top: 2.2rem;
  padding-top: 1.7rem;
  border-top: 1px dashed rgba(148, 163, 184, 0.5);
}

.teaser h2 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  color: #e5e7eb;
}

.teaser p {
  margin: 0;
  font-size: 0.9rem;
  color: #cbd5e1;
}

.site-footer {
  background-color: #0f172a;
  display: flex;
  flex-direction: column-reverse;
  align-items: center;
  width: 100%;
  margin: auto;
  padding-top: 20px;
  margin-top: 200px;
  color: #f8fafc;
}

.site-footer p {
  margin: 20px 0;
  font-size: 0.95rem;
  color: #f8fafc;
}

.site-footer p a {
  color: #f8fafc;
  text-decoration: none;
}

.site-footer p a:hover {
  text-decoration: underline;
}

#social-links {
  display: flex;
}

#social-links a {
  margin: 0 20px;
  width: 50px;
  color: #f8fafc;
}

#social-links .footer-icon {
  width: 50px;
  height: 50px;
  display: block;
}

.footer-repo {
  height: 60px;
  margin-bottom: 30px;
}

.footer-repo-link {
  display: flex;
  align-items: center;
  height: 100%;
  font-size: large;
  color: #f8fafc;
  text-decoration: none;
}

.footer-repo-link:hover {
  text-decoration: underline;
}

.footer-repo-link img {
  height: 100%;
  margin-right: 10px;
  width: auto;
}