:root {
  --bg: #f6f7f9; --card: #fff; --text: #1d2129; --muted: #6b7280; --line: #e3e6ea;
  --accent: #2563eb; --ok: #15803d; --ok-bg: #ecfdf3; --ng: #b91c1c; --warn-bg: #fff7e6;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #15171b; --card: #1e2126; --text: #e6e8eb; --muted: #9aa1ab; --line: #30343b;
    --accent: #60a5fa; --ok: #4ade80; --ok-bg: #16281d; --ng: #f87171; --warn-bg: #2d2615; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.5 -apple-system, "Hiragino Sans", sans-serif; }
header { display: flex; align-items: center; gap: 16px; padding: 10px 16px; background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
h1 { font-size: 16px; margin: 0; }
nav button { border: 0; background: none; color: var(--muted); padding: 6px 10px; border-radius: 6px; cursor: pointer; font: inherit; }
nav button.active { background: var(--bg); color: var(--text); font-weight: 600; }
#mode { margin-left: auto; font-size: 12px; color: var(--muted); }
#mode.demo { color: #b45309; font-weight: 600; }
main { padding: 16px; }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px; margin-bottom: 12px; }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; }
label { display: flex; flex-direction: column; gap: 3px; font-size: 12px; color: var(--muted); }
label.grow { flex: 1; min-width: 220px; }
label small { color: var(--muted); font-size: 11px; }
input, select, textarea { font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 6px; padding: 6px 8px; }
textarea { width: 100%; }
button { font: inherit; padding: 7px 14px; border-radius: 6px; border: 1px solid var(--line); background: var(--card); color: var(--text); cursor: pointer; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
button:disabled { opacity: .5; cursor: wait; }
fieldset { border: 1px solid var(--line); border-radius: 8px; margin: 0 0 12px; padding: 10px 12px; display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 10px; }
legend { font-weight: 600; padding: 0 4px; }
fieldset label:has(input[type=checkbox]) { flex-direction: row; align-items: center; color: var(--text); }
#saved { color: var(--ok); font-size: 12px; }
#status { margin: 0 0 10px; font-size: 13px; }
#status .err { color: var(--ng); white-space: pre-wrap; }
#status .warn { background: var(--warn-bg); padding: 6px 10px; border-radius: 6px; display: inline-block; }
.toolbar { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin-bottom: 8px; }
.toolbar label { flex-direction: row; align-items: center; color: var(--text); font-size: 13px; }
#filter { min-width: 220px; }
#count { color: var(--muted); font-size: 12px; margin-left: auto; }
.table-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: 10px; }
table { border-collapse: collapse; width: 100%; min-width: 1100px; }
th, td { padding: 7px 8px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { position: sticky; top: 0; background: var(--card); font-size: 12px; color: var(--muted); text-align: left; white-space: nowrap; user-select: none; }
th[data-sort] { cursor: pointer; }
th.sorted::after { content: " ▼"; }
th.sorted.asc::after { content: " ▲"; }
.num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
tr.main:hover { background: var(--bg); }
tr.ok { background: var(--ok-bg); }
td.thumb img { width: 44px; height: 44px; object-fit: contain; background: #fff; border-radius: 4px; }
td.name { max-width: 340px; }
td.name .t { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
td.name .sub { font-size: 11px; color: var(--muted); }
td.name a { color: var(--accent); text-decoration: none; margin-right: 8px; }
.sub2 { font-size: 11px; color: var(--muted); }
.pos { color: var(--ok); font-weight: 600; }
.neg { color: var(--ng); font-weight: 600; }
input.price { width: 90px; text-align: right; padding: 4px 6px; }
input.price.custom { border-color: var(--accent); }
button.toggle { padding: 2px 8px; font-size: 12px; }
tr.detail td { background: var(--bg); }
.detail-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 16px; }
.detail-grid h4 { margin: 0 0 6px; font-size: 12px; color: var(--muted); }
.detail-grid table { min-width: 0; font-size: 12px; }
.detail-grid td { padding: 3px 6px; }
svg.spark { display: block; }
.empty { padding: 30px; text-align: center; color: var(--muted); }
h3 { font-size: 14px; margin: 4px 0 8px; }
h3:not(:first-child) { margin-top: 20px; }
.note { font-size: 12px; color: var(--muted); margin: 0 0 8px; }
label.inline { flex-direction: row; align-items: center; color: var(--text); font-size: 13px; padding-bottom: 6px; }
.table-wrap.small { margin-top: 10px; }
.table-wrap.small table { min-width: 600px; }
tr.better-kaitori td.kt { background: var(--ok-bg); }
.tag { display: inline-block; font-size: 11px; padding: 0 6px; border-radius: 4px; background: var(--ok); color: #fff; }
.detail-grid a, #shops a { color: var(--accent); text-decoration: none; }
.ks-group { border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; margin-bottom: 8px; }
.ks-group .head { display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.ks-group .head b { flex: 1; min-width: 200px; }
.ks-group table { min-width: 0; font-size: 12px; margin-top: 4px; }
.ks-group td { padding: 2px 6px; border: 0; }
#inv input.cell { width: 80px; text-align: right; padding: 3px 5px; }
#inv input.memo { width: 120px; padding: 3px 5px; }
#inv-summary { margin: 0 0 10px; }
.summary-cards { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 8px; }
.summary-cards div { background: var(--bg); border-radius: 8px; padding: 8px 12px; }
.summary-cards b { display: block; font-size: 16px; }
.badge-name { font-size: 10px; color: var(--muted); border: 1px solid var(--line); border-radius: 3px; padding: 0 3px; margin-left: 4px; }
.badge-name.warn { color: #b45309; border-color: #b45309; }
.ks-pick { cursor: pointer; }
.ks-pick:hover b { color: var(--accent); }
.ks-group.open { border-color: var(--accent); }
.ks-group .chev { color: var(--muted); font-size: 11px; margin-left: auto; }
.ks-detail { margin-top: 8px; border-top: 1px solid var(--line); padding-top: 8px; }
.ks-detail table { width: 100%; }
.ks-detail th { position: static; }
.ks-detail input.cell { width: 100px; text-align: right; }
tr.dim td { opacity: .5; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.ks-detail td a { font-weight: 600; }
.shop-table { width: 100%; }
.shop-table th { position: static; }
#rewards-bar { display: flex; flex-wrap: wrap; gap: 6px 12px; align-items: center; padding: 8px 16px; background: var(--card);
  border-bottom: 1px solid var(--line); font-size: 12px; position: sticky; top: 49px; z-index: 4; }
#rewards-bar .lbl { color: var(--muted); }
#rewards-bar label { flex-direction: row; align-items: center; gap: 4px; color: var(--text); font-size: 12px; white-space: nowrap; }
#rewards-bar input[type=date], #rewards-bar select { padding: 2px 4px; font-size: 12px; }
#rewards-bar .chip { border: 1px solid var(--line); border-radius: 999px; padding: 2px 8px; }
#rewards-bar .chip.on { border-color: var(--ok); background: var(--ok-bg); }
#rewards-bar .chip.off-day { opacity: .45; }
#rewards-bar .total { margin-left: auto; font-weight: 600; }
#pc input.cell { width: 70px; text-align: right; padding: 3px 5px; }
#pc input[type=date] { padding: 3px 5px; }
.cap-bars { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 10px; }
.cap-bar { background: var(--bg); border-radius: 8px; padding: 6px 10px; min-width: 200px; font-size: 12px; }
.cap-bar .meter { height: 6px; background: var(--line); border-radius: 3px; margin-top: 4px; overflow: hidden; }
.cap-bar .meter i { display: block; height: 100%; background: var(--ok); }
.cap-bar.full .meter i { background: #b45309; }
tr.bought td { opacity: .75; }
#auth-overlay { position: fixed; inset: 0; background: var(--bg); z-index: 50; display: flex; align-items: center; justify-content: center; padding: 16px; }
#auth-overlay[hidden] { display: none; }
.auth-box { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 24px; width: 100%; max-width: 380px; }
.auth-box h1 { margin: 0 0 12px; font-size: 20px; }
.auth-box form { display: flex; flex-direction: column; gap: 10px; }
.auth-box .err { color: var(--ng); font-size: 13px; min-height: 1em; }
#whoami { font-size: 12px; color: var(--muted); }
#whoami button { padding: 2px 8px; font-size: 12px; margin-left: 6px; }
body:not(.is-admin) .admin-only { display: none !important; }
body:not(.is-operator) .operator-only { display: none !important; }