* { box-sizing: border-box; }
body {
  margin: 0; min-height: 100vh; padding: 40px 16px;
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: #1e1f21; background: #f6f5f4;
}
.card { max-width: 560px; margin: 0 auto; background: #fff; border: 1px solid #e8e6e4; border-radius: 12px; padding: 32px; box-shadow: 0 1px 3px rgba(0,0,0,.04); }
.brand { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
h1 { font-size: 22px; margin: 0; }
h2 { font-size: 15px; margin: 28px 0 10px; padding-top: 16px; border-top: 1px solid #f0eeec; }
.checks h2 { border-top: 0; padding-top: 0; }
ul { list-style: none; padding: 0; margin: 0; }
li { padding: 2px 0; }
li.pass { color: #2c8b62; }
li.fail { color: #c92f3a; font-weight: 600; }
label { display: block; margin: 0 0 12px; font-weight: 500; color: #3d3e40; }
label small { display: block; font-weight: 400; color: #8a8b8d; margin-top: 3px; }
input[type=text], input:not([type]), input[type=email], input[type=password] {
  display: block; width: 100%; margin-top: 5px; padding: 9px 11px; font: inherit;
  border: 1px solid #d5d3d1; border-radius: 6px; background: #fff; color: inherit;
}
input:focus { outline: 2px solid #4573d2; outline-offset: -1px; border-color: transparent; }
.row { display: flex; gap: 12px; }
.row label { flex: 1; }
.row label.small { flex: 0 0 90px; }
.radios label, label.check { display: flex; align-items: center; gap: 8px; font-weight: 400; }
form:has(input[value=sqlite]:checked) .mysql-fields { display: none; }
.btn {
  display: inline-block; margin-top: 12px; padding: 10px 20px; border: 0; border-radius: 6px;
  background: #f06a6a; color: #fff; font: 600 14px/1 inherit; text-decoration: none; cursor: pointer;
}
.btn:hover { background: #e05555; }
.errors { background: #fdeeee; border: 1px solid #f5c2c4; color: #8f1d26; border-radius: 8px; padding: 10px 14px; margin: 16px 0; }
.errors p { margin: 4px 0; }
.ok h2 { border: 0; padding: 0; font-size: 18px; }
code { background: #f3f2f1; padding: 1px 5px; border-radius: 4px; }