/* General layout */
body {
  font-family: "Segoe UI", Roboto, sans-serif;
  background: #f9fafb;
  color: #111827;
  margin: 0;
  line-height: 1.6;
}

header {
  background: #111827;
  color: white;
  text-align: center;
  padding: 2rem 1rem;
}

header h1 { margin-bottom: .3rem; }
header p { opacity: .8; }

nav a {
  color: #38bdf8;
  text-decoration: none;
  margin: 0 .5rem;
}
nav a:hover { text-decoration: underline; }

main {
  max-width: 900px;
  margin: 2rem auto;
  padding: 0 1rem;
}

/* Search bar */
#search {
  width: 100%;
  padding: .8rem;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  margin-bottom: 1.5rem;
  font-size: 1rem;
}

/* Grid of writeups */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.card {
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  padding: 1rem;
  transition: transform .2s, box-shadow .2s;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.card h2 { margin-top: 0; color: #111827; }
.card time { color: #6b7280; font-size: .9rem; }
.card p { margin: .5rem 0; }

.btn {
  display: inline-block;
  background: #1f2937;
  color: white;
  text-decoration: none;
  padding: .4rem .8rem;
  border-radius: 6px;
  font-size: .9rem;
}
.btn:hover { background: #374151; }

/* Single post view */
.post {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 3px 8px rgba(0,0,0,0.1);
}
.post h1 { margin-top: 0; }
.post pre {
  background: #f3f4f6;
  padding: .75rem;
  border-radius: 6px;
  overflow-x: auto;
}
.post code {
  background: #e5e7eb;
  padding: .1rem .3rem;
  border-radius: 4px;
}

footer {
  text-align: center;
  padding: 2rem 1rem;
  color: #6b7280;
  font-size: .9rem;
}
select {
  display: inline-block;
  background: #1f2937;
  color: white;
  text-decoration: none;
  padding: .4rem .8rem;
  border-radius: 6px;
  font-size: .9rem;
}