:root {
  --bg: #ffffff;
  --fg: #1f2937;
  --accent: #BED730;        /* wwwe lime */
  --muted: #6b7280;
  --border: #e5e7eb;
}
* { box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
       margin: 0; color: var(--fg); background: var(--bg); }
header { border-bottom: 1px solid var(--border); padding: .75rem 1rem; }
header nav a { color: var(--fg); margin-right: .25rem; text-decoration: none; }
header nav a:hover { text-decoration: underline; }
header nav strong { color: var(--accent); margin-right: .5rem; }
main { max-width: 1200px; margin: 1.5rem auto; padding: 0 1rem; }
h1 { margin-top: 0; }
table { border-collapse: collapse; width: 100%; }
th, td { border-bottom: 1px solid var(--border); padding: .5rem; text-align: left; }
th { background: #f9fafb; }
pre { background: #f3f4f6; padding: .75rem; overflow-x: auto; border-radius: 4px; }
button, input[type=submit] { background: var(--accent); color: #1f2937; border: 0;
                              padding: .5rem 1rem; cursor: pointer; border-radius: 4px; }
input[type=text], input[type=email], input[type=password] {
  padding: .5rem; border: 1px solid var(--border); border-radius: 4px; min-width: 20rem;
}
.messages { list-style: none; padding: 0; }
.messages li { padding: .5rem; background: #fef3c7; border-radius: 4px; margin-bottom: .5rem; }