:root {
  --bg: #f2f5f9; --card: #fff; --text: #172033; --muted: #5f6b7e; --line: #dce3ed;
  --accent: #1d5bb8; --accent-t: #fff; --danger: #b42318; --soft: #e8f0fb; --warn-bg: #fdf0ec;
  --line-green: #06c755; --head-bg: #0f3470;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11161f; --card: #19202c; --text: #e6ebf3; --muted: #97a3b6; --line: #2a3445;
    --accent: #6fa6f5; --accent-t: #0b1424; --danger: #f07167; --soft: #1a2940; --warn-bg: #2d1f1d; --head-bg: #0c2a5c;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font-family: system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", "Yu Gothic UI", sans-serif; line-height: 1.6; }
a { color: var(--accent); }
header { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px; padding: 12px 16px;
  background: var(--head-bg); color: #fff; position: sticky; top: 0; z-index: 5; }
.brand { font-weight: 800; font-size: 20px; letter-spacing: .02em; text-decoration: none; color: #fff; margin-right: auto; }
nav { display: flex; flex-wrap: wrap; gap: 4px 14px; font-size: 14px; }
nav a { text-decoration: none; color: #fff; font-weight: 400; opacity: .92; }
nav a:hover, nav a:focus-visible { opacity: 1; text-decoration: underline; text-underline-offset: 4px; }
header :focus-visible { outline-color: #fff; }
main { max-width: 960px; margin: 0 auto; padding: 16px; }
h1 { font-size: 20px; margin: 0 0 12px; }
h2 { font-size: 17px; margin: 0; }
small, .small { font-size: 12px; }
.muted { color: var(--muted); }
code { background: var(--soft); padding: 1px 6px; border-radius: 4px; word-break: break-all; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px; margin-bottom: 16px; }
.center { text-align: center; }
.flash { background: var(--soft); border: 1px solid var(--accent); border-radius: 8px; padding: 10px 14px; margin-bottom: 14px; }
.error { background: var(--warn-bg); border: 1px solid var(--danger); color: var(--danger); border-radius: 8px; padding: 10px 14px; margin-bottom: 14px; }

.btn { display: inline-block; padding: 8px 14px; border: 1px solid var(--line); border-radius: 8px; background: var(--card);
  color: var(--text); text-decoration: none; font-size: 14px; cursor: pointer; font-family: inherit; line-height: 1.4; }
.btn:hover, .btn:focus-visible { border-color: var(--accent); }
.btn.primary { background: var(--accent); color: var(--accent-t); border-color: var(--accent); font-weight: 600; }
.btn.danger { color: var(--danger); }
.btn.small { padding: 5px 10px; font-size: 13px; }
.btn.line { background: var(--line-green); color: #fff; border-color: var(--line-green); font-weight: 700; padding: 12px 28px; font-size: 16px; }
.btn.current { background: var(--accent); color: var(--accent-t); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.toolbar { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 8px; margin-bottom: 12px; }
.toolbar h1 { margin: 0; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.filters input { flex: 1 1 220px; }

input, select, textarea { font: inherit; font-size: 16px; color: var(--text); background: var(--bg);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; width: 100%; min-width: 0; }
.filters select, .filters input { width: auto; }
textarea { resize: vertical; }
.form { display: flex; flex-direction: column; gap: 14px; }
.form label { display: flex; flex-direction: column; gap: 4px; font-weight: 600; font-size: 14px; }
.form label small { font-weight: 400; color: var(--muted); }
fieldset { border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px 12px; margin: 0; }
legend { font-weight: 700; font-size: 14px; padding: 0 4px; }
.req { color: var(--danger); font-size: 11px; font-weight: 700; }
.row2, .row3 { display: grid; gap: 12px; }
@media (min-width: 640px) { .row2 { grid-template-columns: 1fr 1fr; } .row3 { grid-template-columns: 1fr 1fr 1.4fr; } }
.mod-row { display: grid; grid-template-columns: 150px 1fr auto; gap: 6px; margin-bottom: 6px; }
@media (max-width: 520px) { .mod-row { grid-template-columns: 1fr auto; } .mod-row input[type=date] { grid-column: 1 / -1; } }

.list { display: flex; flex-direction: column; gap: 10px; }
.item { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; }
.item-head { display: flex; justify-content: space-between; gap: 10px; align-items: flex-start; }
.note { color: var(--muted); font-size: 14px; }
.tags { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.tag { background: var(--soft); border-radius: 999px; padding: 2px 10px; font-size: 13px; white-space: nowrap; }
.tag.st-pending { background: var(--warn-bg); color: var(--danger); }
.tag.st-disabled { opacity: .6; }
.meta { display: flex; flex-wrap: wrap; gap: 4px 18px; margin: 8px 0 0; font-size: 13px; }
.meta div { display: flex; gap: 6px; }
.meta dt { color: var(--muted); }
.meta dd { margin: 0; }
details { margin-top: 8px; }
summary { cursor: pointer; font-size: 14px; color: var(--accent); }
.mods { list-style: none; padding: 0; margin: 8px 0; }
.mods li { display: flex; gap: 10px; padding: 4px 0; border-bottom: 1px dashed var(--line); font-size: 14px; }
.mods .date { color: var(--muted); white-space: nowrap; min-width: 84px; }
.remarks { font-size: 14px; margin-top: 6px; }
.actions { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; align-items: center; }
.actions form { margin: 0; }
.inline-edit { display: flex; gap: 6px; margin-left: auto !important; }
.inline-edit input { width: 150px; padding: 5px 8px; font-size: 14px; }
.user.disabled { opacity: .7; }

.logs { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.log { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px; }
.log-head { display: flex; flex-wrap: wrap; gap: 4px 10px; align-items: center; font-size: 14px; }
.log-head time { color: var(--muted); margin-left: auto; font-size: 13px; }
.log .who { font-weight: 600; }
.log .detail { font-size: 13px; color: var(--muted); margin-top: 4px; }
.badge { font-size: 12px; font-weight: 700; padding: 1px 8px; border-radius: 4px; background: var(--soft); color: var(--accent); }
.badge.edit { background: var(--bg); color: var(--text); border: 1px solid var(--line); }
.badge.delete { background: var(--warn-bg); color: var(--danger); }
.pager { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 14px; }

.num { font-variant-numeric: tabular-nums; font-weight: 700; color: var(--text); }
[hidden] { display: none !important; }

/* ---- 画像 ---- */
.photo-strip { display: flex; gap: 8px; overflow-x: auto; scroll-snap-type: x mandatory; margin: 10px -2px 0; padding: 2px 2px 6px; }
.photo-strip .ph { flex: 0 0 auto; scroll-snap-align: start; padding: 0; border: 1px solid var(--line); border-radius: 8px; overflow: hidden;
  background: var(--bg); cursor: zoom-in; width: 132px; aspect-ratio: 4 / 3; }
.photo-strip img, .photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.photos legend { display: flex; gap: 8px; align-items: baseline; }
.photo-count { font-size: 12px; font-weight: 600; color: var(--accent); font-variant-numeric: tabular-nums; }
.photo-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 8px; margin-bottom: 10px; }
.photo-grid:empty { display: none; }
.photo { position: relative; display: block; aspect-ratio: 4 / 3; border-radius: 8px; overflow: hidden; border: 2px solid var(--accent); cursor: pointer; background: var(--bg); }
.photo:has(input:not(:checked)) { border-color: var(--line); }
.photo:has(input:not(:checked)) img { opacity: .35; filter: grayscale(1); }
.photo input { position: absolute; top: 6px; left: 6px; width: 20px; height: 20px; margin: 0; accent-color: var(--accent); z-index: 1; }
.photo:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: 2px; }
.photo-tag { position: absolute; right: 6px; bottom: 6px; font-size: 11px; font-weight: 700; background: var(--accent); color: var(--accent-t); padding: 1px 6px; border-radius: 4px; }
.photo-msg { color: var(--danger); }
.dlg { border: 1px solid var(--line); border-radius: 12px; background: var(--card); color: var(--text); padding: 18px; max-width: min(420px, calc(100vw - 32px)); }
.dlg::backdrop { background: rgb(0 0 0 / .45); }
.lightbox { position: fixed; inset: 0; z-index: 50; background: rgb(8 12 20 / .92); display: grid; place-items: center; padding: 16px; }
.lightbox img { max-width: 100%; max-height: calc(100vh - 80px); border-radius: 6px; }
.lb-btn { position: absolute; border: 0; background: rgb(255 255 255 / .14); color: #fff; font-size: 28px; line-height: 1; width: 44px; height: 44px; border-radius: 50%; cursor: pointer; }
.lb-btn:focus-visible { outline: 2px solid #fff; }
.lb-prev { left: 12px; top: 50%; transform: translateY(-50%); }
.lb-next { right: 12px; top: 50%; transform: translateY(-50%); }
.lb-close { right: 12px; top: 12px; font-size: 24px; }
.lb-count { position: absolute; bottom: 14px; left: 0; right: 0; text-align: center; color: #fff; font-size: 13px; font-variant-numeric: tabular-nums; }

/* ---- スマホではみ出さないように ---- */
fieldset, .form label, .row2 > *, .row3 > *, .mod-row > * { min-width: 0; }
input, select, textarea { max-width: 100%; }
input[type=date] { -webkit-appearance: none; appearance: none; display: block; min-height: 42px; text-align: left; }
input[type=date]::-webkit-date-and-time-value { text-align: left; }
.photo-msg { color: var(--danger); font-size: 13px; font-weight: 600; margin: 4px 0 0; }
.photo-msg:empty { display: none; }
.photo-actions { margin-top: 0; }