/* School CMS — single stylesheet, no external dependencies. */
* { box-sizing: border-box; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; background: #f4f6f8; color: #222; }
a { color: #0b5cab; }
.layout { display: flex; min-height: 100vh; }
.sidebar { width: 220px; background: #0a1b38; color: #fff; padding: 16px 12px; flex-shrink: 0; }
.sidebar .brand { font-size: 20px; font-weight: bold; margin-bottom: 4px; }
.sidebar .who { font-size: 13px; color: #cdd6e4; margin-bottom: 16px; }
.sidebar nav a { display: block; color: #fff; text-decoration: none; padding: 9px 10px; border-radius: 6px; margin-bottom: 2px; }
.sidebar nav a:hover, .sidebar nav a.on { background: #a10a0e; }
.content { flex: 1; padding: 20px 24px; max-width: 1100px; }
.content h1 { margin-top: 0; }
.card { background: #fff; border: 1px solid #ddd; border-radius: 8px; padding: 16px; margin-bottom: 16px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; }
.stat { background: #fff; border: 1px solid #ddd; border-radius: 8px; padding: 14px; }
.stat b { font-size: 26px; display: block; }
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { border: 1px solid #ddd; padding: 8px 10px; text-align: left; vertical-align: top; }
th { background: #eef2f7; }
form label { display: block; margin: 8px 0 2px; font-weight: bold; }
input, select, textarea { width: 100%; padding: 8px; border: 1px solid #bbb; border-radius: 5px; font-size: 15px; }
input[type="radio"], input[type="checkbox"] { width: auto; }
button, .btn { background: #0a1b38; color: #fff; border: 0; padding: 9px 16px; border-radius: 5px; cursor: pointer; text-decoration: none; display: inline-block; font-size: 15px; }
button.danger, .btn.danger { background: #a10a0e; }
button.small, .btn.small { padding: 5px 10px; font-size: 13px; }
.notice { background: #e6f4ea; border: 1px solid #8fce9b; padding: 10px; border-radius: 6px; margin-bottom: 12px; }
.error { background: #fdecea; border: 1px solid #f5a9a2; padding: 10px; border-radius: 6px; margin-bottom: 12px; }
.login-box { max-width: 380px; margin: 80px auto; background: #fff; border: 1px solid #ddd; border-radius: 8px; padding: 24px; }
.login-box h1 { text-align: center; }
/* Printable certificate */
.cert { background: #fff; border: 3px double #0a1b38; padding: 40px; max-width: 800px; margin: 0 auto; text-align: center; }
.cert h2 { margin-bottom: 4px; }
.cert .body { text-align: left; line-height: 1.8; margin-top: 24px; }
.cert .sig { display: flex; justify-content: space-between; margin-top: 60px; }
@media print {
  .sidebar, .noprint { display: none !important; }
  .content { max-width: none; padding: 0; }
  .cert { border: 3px double #000; }
}
@media (max-width: 700px) {
  .layout { flex-direction: column; }
  .sidebar { width: 100%; }
  .content { padding: 14px; }
  table { font-size: 14px; }
}