:root {
  --bg: #f6f7f9; --card: #fff; --fg: #1d2330; --muted: #6b7280; --line: #e3e6ea;
  --primary: #1f6feb; --danger: #c0392b; --ok: #1e8449; --warn: #b7791f; --warn-bg: #fff7e6;
}
* { box-sizing: border-box; }
body { margin: 0; font: 14px/1.4 system-ui, -apple-system, Segoe UI, Roboto, sans-serif; background: var(--bg); color: var(--fg); }
.muted { color: var(--muted); }
code { background: #eef0f3; padding: 1px 4px; border-radius: 3px; }
.topbar { display: flex; align-items: center; gap: 24px; padding: 10px 20px; background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
.brand { font-weight: 600; font-size: 15px; }
.topbar nav a { margin-right: 14px; color: var(--muted); text-decoration: none; padding: 6px 2px; border-bottom: 2px solid transparent; }
.topbar nav a.active { color: var(--fg); border-color: var(--primary); }
.topbar .user { margin-left: auto; display: flex; gap: 8px; align-items: center; }
main { padding: 16px 20px; max-width: 1500px; margin: 0 auto; }
.toolbar { display: flex; flex-wrap: wrap; gap: 12px; align-items: end; margin: 10px 0; }
.toolbar label { display: flex; flex-direction: column; gap: 3px; font-size: 12px; color: var(--muted); }
.toolbar label.chk { flex-direction: row; align-items: center; font-size: 13px; color: var(--fg); }
.toolbar .spacer { flex: 1; }
input, select { font: inherit; padding: 6px 8px; border: 1px solid #cfd4da; border-radius: 6px; background: #fff; }
input[type=search] { min-width: 320px; }
.btn { font: inherit; padding: 7px 12px; border-radius: 6px; border: 1px solid #cfd4da; background: #fff; cursor: pointer; }
.btn:hover { background: #f0f2f5; }
.btn.small { padding: 3px 8px; font-size: 12px; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { filter: brightness(.95); }
.btn.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn:disabled { opacity: .5; cursor: default; }
.explain { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; margin: 8px 0; }
.summary { margin: 4px 0 8px; }
.howto { margin-top: 6px; }
.howto summary { cursor: pointer; color: var(--primary); }
.howto ol { margin: 6px 0 0; padding-left: 20px; }
td.empty { text-align: center; padding: 28px 12px; white-space: normal; }
.table-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: 8px; }
table { border-collapse: collapse; width: 100%; }
th, td { padding: 7px 10px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
th { background: #fafbfc; font-weight: 600; font-size: 12px; color: var(--muted); position: sticky; top: 0; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tr.zero td { color: var(--muted); }
tr.done td { background: #f3fbf5; }
.pos { color: var(--ok); } .neg { color: var(--danger); }
.pill { display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: 12px; background: #eef0f3; }
.pill.ok { background: #e3f6e8; color: var(--ok); }
.pill.warn { background: var(--warn-bg); color: var(--warn); }
.pill.err { background: #fde8e6; color: var(--danger); }
td .pill + .pill { margin-left: 4px; }
dialog { border: 1px solid var(--line); border-radius: 10px; padding: 18px 22px; min-width: 360px; max-width: 640px; }
dialog::backdrop { background: rgba(0,0,0,.35); }
dialog label { display: block; margin: 8px 0; }
dialog label input { width: 100%; margin-top: 3px; }
dialog .row { margin-top: 12px; display: flex; gap: 8px; }
.error { color: var(--danger); }
.notice { background: #e8f1ff; border: 1px solid #c6dbff; padding: 8px 12px; border-radius: 6px; }
#toast { position: fixed; bottom: 18px; right: 18px; background: #222; color: #fff; padding: 10px 14px; border-radius: 8px; max-width: 460px; z-index: 20; white-space: pre-wrap; }
.login-body { display: grid; place-items: center; min-height: 100vh; }
.login-box { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 28px 30px; width: 340px; display: flex; flex-direction: column; gap: 10px; }
.login-box h1 { font-size: 18px; margin: 0; }
.login-box label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; }