:root {
  --green: #1b7a43;
  --text: #222;
  --muted: #667;
  --bg: #fafaf8;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
}
header {
  background: var(--green);
  color: #fff;
  padding: 20px;
}
header a { color: #fff; text-decoration: none; font-weight: 700; font-size: 20px; }
main { max-width: 760px; margin: 0 auto; padding: 24px 20px 64px; }
h1 { font-size: 28px; }
h2 { font-size: 20px; margin-top: 32px; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { border: 1px solid #ddd; padding: 8px 10px; text-align: left; vertical-align: top; }
th { background: #f0f2f0; }
.updated { color: var(--muted); font-size: 14px; }
.notice {
  background: #eef6ef;
  border-left: 4px solid var(--green);
  padding: 12px 16px;
  border-radius: 0 8px 8px 0;
}
footer {
  max-width: 760px; margin: 0 auto; padding: 20px;
  color: var(--muted); font-size: 14px; border-top: 1px solid #e5e5e5;
}
footer a { color: var(--green); }
label { display: block; margin: 14px 0 4px; font-weight: 600; }
input, select {
  width: 100%; padding: 10px; font: inherit;
  border: 1px solid #ccc; border-radius: 8px; background: #fff;
}
button {
  margin-top: 20px; padding: 12px 24px; font: inherit; font-weight: 600;
  background: #b3261e; color: #fff; border: 0; border-radius: 8px; cursor: pointer;
}
button:disabled { opacity: 0.6; cursor: default; }
.error { color: #b3261e; }
.success { color: var(--green); font-weight: 600; }