:root {
  --fg: #222; --muted: #777; --line: #e3e3e3; --bg: #fff; --soft: #f6f6f6;
  --red: #b00020; --amber: #a15c00; --green: #2e7d32; --accent: #1f4e79;
}
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.5 -apple-system, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif; color: var(--fg); background: var(--bg); }
header { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 16px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
header .brand { font-weight: 700; color: var(--fg); text-decoration: none; }
nav a { margin-left: 14px; color: var(--accent); text-decoration: none; }
main { max-width: 980px; margin: 0 auto; padding: 16px; }
h2 { font-size: 18px; margin: 24px 0 8px; }
h2:first-child { margin-top: 0; }
a { color: var(--accent); }
.muted { color: var(--muted); font-size: 13px; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 8px; }
.stats div { border: 1px solid var(--line); padding: 10px 12px; }
.stats b { display: block; font-size: 20px; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 600; font-size: 13px; color: var(--muted); background: var(--soft); }
.scroll { overflow-x: auto; }
.tag { display: inline-block; padding: 0 6px; font-size: 12px; border: 1px solid currentColor; white-space: nowrap; }
.s-overdue { color: var(--red); } .s-soon { color: var(--amber); } .s-ok { color: var(--green); } .s-unknown { color: var(--muted); }
button, .btn { font: inherit; font-size: 14px; padding: 5px 12px; border: 1px solid #bbb; background: #fff; cursor: pointer; color: var(--fg); text-decoration: none; display: inline-block; white-space: nowrap; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.link { border: 0; padding: 0; background: none; color: var(--accent); }
button.danger { color: var(--red); }
form.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 10px 16px; }
label { display: block; font-size: 13px; color: var(--muted); }
input, select, textarea { font: inherit; width: 100%; padding: 6px 8px; border: 1px solid #bbb; background: #fff; color: var(--fg); }
fieldset { border: 1px solid var(--line); margin: 0 0 12px; padding: 10px 14px; }
legend { font-weight: 600; padding: 0 4px; }
fieldset label { display: flex; gap: 8px; align-items: center; color: var(--fg); font-size: 15px; padding: 3px 0; }
fieldset input[type=radio], fieldset input[type=checkbox] { width: auto; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.box { border: 1px solid var(--line); padding: 12px 14px; margin: 8px 0; }
.err { color: var(--red); }
dialog { border: 1px solid #999; padding: 16px; width: min(420px, 92vw); }
dialog form > * { margin-bottom: 8px; }
@media (max-width: 600px) { .hide-sm { display: none; } nav a { margin-left: 10px; } }
.badge { display: inline-block; min-width: 18px; padding: 0 5px; font-size: 12px; line-height: 18px; text-align: center; background: var(--red); color: #fff; border-radius: 9px; }
.notice { border: 1px solid var(--line); background: var(--soft); padding: 12px 16px; margin: 8px 0 16px; }
.notice ul { margin: 6px 0; padding-left: 18px; }
.checks { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 0 12px; }
.bell { color: var(--red); font-size: 12px; white-space: nowrap; }
.badge[hidden] { display: none; }
.install-banner { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; padding: 8px 16px; background: var(--soft); border-bottom: 1px solid var(--line); font-size: 14px; }
.install-banner[hidden] { display: none; }
ol.steps { margin: 0; padding: 0; list-style: none; }
ol.steps li { padding: 8px 0; border-bottom: 1px solid var(--line); }
ol.steps li:last-child { border-bottom: 0; }
.ico { display: inline-block; border: 1px solid var(--line); padding: 0 6px; }