:root {
  --bg: #f4f6f9; --card: #fff; --ink: #1d2430; --muted: #64707f; --line: #dde3ea;
  --brand: #1f4e79; --red: #b00020; --amber: #b45309; --green: #2e7d32; --chip: #eef3f8;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #12161c; --card: #1b2129; --ink: #e5e9ef; --muted: #98a3b1; --line: #2c3540;
    --brand: #6ea8dc; --red: #ff6b7d; --amber: #f0a64a; --green: #6cc070; --chip: #243040; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 14px/1.45 "Segoe UI", system-ui, -apple-system, Arial, sans-serif; }
a { color: var(--brand); }
[hidden] { display: none !important; }
.muted { color: var(--muted); }
.err { color: var(--red); }

.top { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 16px; padding: 10px 16px;
  background: var(--card); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 16px; }
.tag { font-size: 11px; background: var(--brand); color: #fff; border-radius: 4px; padding: 1px 6px; margin-left: 4px; vertical-align: 2px; }
nav { display: flex; gap: 4px; flex-wrap: wrap; }
nav a { text-decoration: none; color: var(--muted); padding: 5px 10px; border-radius: 6px; font-weight: 600; }
nav a.on { background: var(--chip); color: var(--brand); }
.who { margin-left: auto; font-size: 12px; color: var(--muted); display: flex; gap: 8px; align-items: center; }

main { max-width: 980px; margin: 0 auto; padding: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 18px; }
.login { max-width: 380px; margin-top: 60px; text-align: center; }
.login h1 { margin: 0 0 6px; font-size: 22px; }
.ms-btn { display: flex; align-items: center; justify-content: center; gap: 10px; width: 100%; padding: 10px; margin-top: 16px;
  background: #fff; color: #1f2937; border: 1px solid #8c8c8c; border-radius: 4px; font-size: 14px; font-weight: 600; cursor: pointer; }
#dev-form { margin-top: 18px; display: flex; flex-direction: column; gap: 6px; }

.btn { display: inline-flex; align-items: center; gap: 4px; padding: 6px 12px; border: 1px solid var(--line); border-radius: 6px;
  background: var(--card); color: var(--ink); font: inherit; font-weight: 600; cursor: pointer; text-decoration: none; }
.btn:hover { border-color: var(--brand); }
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn.big { padding: 12px 22px; font-size: 16px; }
.btn:disabled { opacity: .5; cursor: default; }
input, select { font: inherit; color: var(--ink); background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: 6px 8px; }
input.num { width: 64px; }

.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
.toolbar input[type=search] { flex: 1 1 200px; max-width: 320px; }
.spacer { flex: 1; }
.chk { display: inline-flex; gap: 6px; align-items: center; }

.group { margin: 18px 0 8px; }
.group h2 { font-size: 15px; margin: 0 0 8px; padding-bottom: 4px; border-bottom: 2px solid var(--brand); color: var(--brand);
  display: flex; gap: 8px; align-items: baseline; }
.group.overdue h2 { color: var(--red); border-color: var(--red); }
.group.stale h2 { color: var(--amber); border-color: var(--amber); }
.group.replied h2 { color: var(--green); border-color: var(--green); }
.group.closed h2, .group.snoozed h2 { color: var(--muted); border-color: var(--line); }
.group h2 .n { font-weight: 400; color: var(--muted); font-size: 13px; }
.empty { color: var(--muted); margin: 4px 0 0; font-size: 13px; }

.item { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; margin-bottom: 8px;
  display: grid; grid-template-columns: 1fr auto; gap: 6px 12px; }
.item .t { font-weight: 600; word-break: break-word; }
.item .t a { color: var(--ink); text-decoration: none; }
.item .t a:hover { text-decoration: underline; }
.item .meta { font-size: 12px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 4px 10px; }
.item .q { font-size: 12px; color: var(--muted); font-style: italic; grid-column: 1 / -1; }
.item .acts { display: flex; gap: 6px; align-items: flex-start; flex-wrap: wrap; justify-content: flex-end; }
.item .acts .btn { padding: 4px 10px; font-size: 12px; }
.btn.done { color: var(--green); border-color: var(--green); }
.pill { font-size: 11px; padding: 0 6px; border-radius: 10px; background: var(--chip); }
.pill.red { color: var(--red); }
.item.busy { opacity: .5; pointer-events: none; }
@media (max-width: 640px) {
  .item { grid-template-columns: 1fr; }
  .item .acts { justify-content: flex-start; }
}

.form { display: flex; flex-direction: column; gap: 10px; max-width: 640px; }
.form h2 { font-size: 15px; margin: 14px 0 0; color: var(--brand); }
.form h2:first-child { margin-top: 0; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.days { display: flex; gap: 6px; flex-wrap: wrap; }
.days label { display: inline-flex; gap: 4px; align-items: center; padding: 3px 8px; border: 1px solid var(--line); border-radius: 6px; }
.preview { border: 1px solid var(--line); border-radius: 8px; padding: 10px; background: #fff; color: #222; overflow-x: auto; }

#report-frame { width: 100%; height: calc(100vh - 160px); min-height: 400px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.tablewrap { overflow-x: auto; }
table.runs { width: 100%; border-collapse: collapse; font-size: 13px; background: var(--card); }
table.runs th, table.runs td { border-bottom: 1px solid var(--line); padding: 6px 8px; text-align: left; vertical-align: top; }
table.runs td.bad { color: var(--red); }

dialog { border: 1px solid var(--line); border-radius: 10px; background: var(--card); color: var(--ink); }
#toast { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); background: #222; color: #fff; padding: 8px 14px;
  border-radius: 6px; font-size: 13px; opacity: 0; transition: opacity .2s; pointer-events: none; max-width: 90vw; }
#toast.show { opacity: .95; }
#toast button { margin-left: 10px; background: none; border: 0; color: #9cd0ff; font: inherit; font-weight: 700; cursor: pointer; pointer-events: auto; }

.confirm { max-width: 520px; margin: 60px auto; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 24px; text-align: center; }
.confirm h1 { font-size: 20px; margin-top: 0; }
.confirm .item-title { font-weight: 600; font-size: 16px; }