:root {
  color-scheme: light dark;
  font-family: "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  background: #fdfdfd;
  color: #1f2933;
}

body {
  margin: 0;
  background: #fdfdfd;
}

.container {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.site-header {
  background: #0f172a;
  color: #f8fafc;
  padding: 2rem 0 1.5rem;
  text-align: center;
}

.site-title {
  font-size: 2rem;
  font-weight: 700;
  color: inherit;
  text-decoration: none;
}

.site-tagline {
  margin: 0.5rem 0 0;
  font-size: 1rem;
  color: #cbd5f5;
}

.site-nav {
  margin-top: 1.5rem;
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem 1.25rem;
}

.nav-item a {
  color: #e2e8f0;
  text-decoration: none;
  font-weight: 600;
}

.nav-item a:hover,
.nav-item a:focus {
  text-decoration: underline;
}

main {
  padding: 2rem 0 3rem;
}

h1,
h2,
h3 {
  color: #111827;
  margin-top: 0;
}

.post-index {
  padding: 2.5rem 0;
}

.post-list {
  list-style: none;
  padding: 0;
  margin: 2rem 0 0;
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.post-list-item {
  margin: 0;
  padding: 0;
}

.post-list-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  text-decoration: none;
  color: inherit;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 0.75rem;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.post-list-link:hover,
.post-list-link:focus {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.15);
  border-color: #cbd5f5;
}

.post-list-thumb-wrapper {
  margin: 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.post-list-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.post-list-text {
  padding: 1.25rem 1.25rem 1.5rem;
}

.post {
  padding: 2.5rem 0;
}

.post-meta {
  margin: 0.5rem 0;
  font-size: 0.9rem;
  color: #475569;
}

.post-summary {
  margin: 0;
  font-size: 1rem;
  color: #334155;
}

.post-header {
  margin-bottom: 1.5rem;
}

.post-image {
  margin: 1.5rem 0 0;
}

.post-image img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 0.5rem;
}

.post-content p {
  margin-bottom: 1.2rem;
}

.post-content ul {
  padding-left: 1.2rem;
}

.site-footer {
  padding: 1.5rem 0;
  background: #0f172a;
  color: #94a3b8;
  text-align: center;
  font-size: 0.9rem;
}

.footer-link {
  color: #cbd5f5;
  margin-left: 0.75rem;
}

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

.page {
  padding: 2.5rem 0;
}