:root {
  --bg: #f6f5f2;
  --panel: #ffffff;
  --ink: #1f2328;
  --muted: #646b73;
  --line: #dcd9d2;
  --accent: #1d5fd1;
  --accent-ink: #ffffff;
  --chip: #eef2fb;
  --chip-on: #1d5fd1;
  --err: #b42318;
  --err-bg: #fdecea;
  --warn: #8a5a00;
  --warn-bg: #fff5d6;
  --info: #285e9e;
  --info-bg: #e8f0fb;
  --row-alt: #faf9f6;
}
:root { color-scheme: light; }

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 14px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif; }
button, input, select, textarea { font: inherit; color: inherit; }

.top { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; padding: 16px; }
.top h1 { margin: 0; font-size: 20px; }
.privacy { margin: 2px 0 0; color: var(--muted); font-size: 13px; }
.team { display: flex; gap: 8px; flex-wrap: wrap; }

button, .btn {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
  padding: 6px 12px; border-radius: 8px; border: 1px solid var(--line); background: var(--panel);
}
button:hover, .btn:hover { border-color: var(--accent); }
button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
button.small { padding: 2px 8px; font-size: 12px; }
button.link { border: 0; background: none; color: var(--accent); padding: 0; }

.tabs { display: flex; gap: 4px; padding: 0 16px; border-bottom: 1px solid var(--line); overflow-x: auto; }
.tabs button { border: 0; border-bottom: 2px solid transparent; border-radius: 0; background: none; padding: 8px 12px; white-space: nowrap; color: var(--muted); }
.tabs button[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); font-weight: 600; }

main { padding: 16px; max-width: 1400px; margin: 0 auto; }
section.card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 16px; margin-bottom: 16px; }
section.card h2 { margin: 0 0 4px; font-size: 16px; }
.hint { color: var(--muted); margin: 0 0 12px; font-size: 13px; }
.bar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 12px; }
.bar .grow { flex: 1; }
.stats { display: flex; flex-wrap: wrap; gap: 16px; color: var(--muted); font-size: 13px; }
.stats b { color: var(--ink); }

.scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: 4px 6px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; color: var(--muted); font-weight: 600; white-space: nowrap; position: sticky; top: 0; background: var(--panel); }
tbody tr:nth-child(even) { background: var(--row-alt); }
td input[type="text"], td input:not([type]), td select { width: 100%; min-width: 80px; padding: 3px 6px; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); }
td input.narrow { min-width: 60px; width: 70px; }
input[type="text"], input:not([type]), input[type="date"], input[type="number"], select, textarea {
  padding: 4px 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--panel);
}
textarea { width: 100%; min-height: 56px; resize: vertical; }
tr.off td { opacity: .45; }
tr.off td:first-child { opacity: 1; }

.chips { display: flex; flex-wrap: wrap; gap: 4px; }
.chip { font-size: 12px; padding: 1px 8px; border-radius: 999px; border: 1px solid var(--line); background: var(--chip); cursor: pointer; user-select: none; white-space: nowrap; }
.chip.on { background: var(--chip-on); color: var(--accent-ink); border-color: var(--chip-on); }
.chip.static { cursor: default; }
.seen { font-size: 12px; color: var(--muted); }

.paste { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.paste label { display: block; font-size: 12px; font-weight: 600; margin-bottom: 4px; }

/* roster grid, styled after the paper roster */
.sheet { font-family: Arial, sans-serif; font-size: 13px; }
.sheet td { border-bottom: 1px solid var(--line); }
.sheet td.room { font-weight: 700; text-align: right; white-space: nowrap; width: 1%; padding-right: 12px; }
.sheet td.cell { min-width: 160px; text-align: center; outline: none; cursor: text; }
.sheet td.cell.over { background: var(--chip); box-shadow: inset 0 0 0 2px var(--accent); }
.sheet td.editing { padding: 2px; }
.sheet .cell-input { width: 100%; text-align: center; font: inherit; }
.names { display: flex; flex-direction: column; gap: 3px; align-items: stretch; }
.names .name { border-color: var(--line); background: var(--panel); text-align: center; }
.add-name { align-self: center; padding: 0 8px; font-size: 12px; line-height: 18px; border-style: dashed; color: var(--muted); opacity: .5; }
.cell:hover .add-name { opacity: 1; }
.name { padding: 1px 8px; border-radius: 6px; border: 1px solid transparent; cursor: grab; touch-action: none; user-select: none; }
.name:hover { border-color: var(--line); background: var(--chip); }
.name.over { border-color: var(--accent); background: var(--chip); box-shadow: 0 0 0 1px var(--accent); }
.name.dragging { opacity: .35; }
.name.ghost { position: fixed; z-index: 10; pointer-events: none; background: var(--panel); border-color: var(--accent); box-shadow: 0 4px 12px rgba(0,0,0,.25); cursor: grabbing; font-family: Arial, sans-serif; font-size: 13px; }
.names .sep { color: var(--muted); align-self: center; }
.empty-cell { color: var(--muted); opacity: .5; }
.sheet td.notes { color: var(--muted); min-width: 120px; }
.sheet tr.gap td { border: 0; height: 12px; background: var(--panel); }
.sheet tr.flagged td.room { color: var(--err); }

.warnings { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.warnings li { padding: 4px 8px; border-radius: 6px; font-size: 13px; }
.warnings li.error { background: var(--err-bg); color: var(--err); }
.warnings li.warn { background: var(--warn-bg); color: var(--warn); }
.warnings li.info { background: var(--info-bg); color: var(--info); }

.cols { display: grid; grid-template-columns: minmax(0, 3fr) minmax(260px, 1fr); gap: 16px; align-items: start; }
@media (max-width: 900px) { .cols { grid-template-columns: 1fr; } }

.empty { text-align: center; color: var(--muted); padding: 32px 16px; }

#toast { position: fixed; left: 50%; bottom: 16px; transform: translateX(-50%); background: var(--ink); color: var(--bg); padding: 8px 14px; border-radius: 8px; opacity: 0; pointer-events: none; transition: opacity .2s; max-width: calc(100vw - 32px); }
#toast.show { opacity: 1; }

@media (max-width: 600px) {
  .top, main { padding: 12px 16px; }
  .tabs { padding: 0 8px; }
}

.seg { display: inline-flex; }
.seg button { border-radius: 0; }
.seg button:first-child { border-radius: 8px 0 0 8px; }
.seg button:last-child { border-radius: 0 8px 8px 0; margin-left: -1px; }
.seg button[aria-pressed="true"] { background: var(--chip); border-color: var(--accent); font-weight: 600; }

/* sheet preview: a white page like Excel, in both themes */
.sheet-wrap { background: #fff; color: #000; }
table.xl { border-collapse: collapse; table-layout: fixed; width: auto; font-family: Arial, sans-serif; color: #000; background: #fff; }
table.xl td { border: 0; padding: 1px 3px; height: 17px; line-height: 1.2; overflow: hidden; white-space: normal; word-break: break-word; }
table.xl tbody tr:nth-child(even) { background: none; }
table.xl td.box { border: 1px solid #000; }
table.xl td.spill { overflow: visible; white-space: nowrap; }
.sheet-wrap { padding-right: 120px; }
@media print {
  body { background: #fff; }
  .top, .tabs, .no-print, #toast { display: none !important; }
  main { padding: 0; max-width: none; }
  section.card { border: 0; padding: 0; margin: 0; }
  @page { size: A4 portrait; margin: 10mm; }
}

.btn-group { display: inline-flex; align-items: center; gap: 4px; flex-wrap: wrap; }

.dbl { margin-left: 1px; font-weight: 700; }
.sheet td.notes { cursor: text; outline: none; }
.sheet td.notes:focus { background: var(--chip); box-shadow: inset 0 0 0 2px var(--accent); }
table.xl td.editable:focus { background: #eef2fb; box-shadow: inset 0 0 0 2px #1d5fd1; }
table.xl td.editable { cursor: text; outline: none; }
table.xl td.editable:hover { background: #f1f4fb; }
.tag-editor { position: fixed; z-index: 20; width: 280px; max-width: calc(100vw - 16px); background: var(--panel); color: var(--ink); border: 1px solid var(--line); border-radius: 10px; padding: 12px; box-shadow: 0 8px 24px rgba(0,0,0,.2); display: grid; gap: 4px; }
.tag-editor label { font-size: 12px; font-weight: 600; color: var(--muted); margin-top: 4px; }
.tag-editor input { width: 100%; }
@media print { .tag-editor { display: none; } }

.cloud { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.cloud:empty { display: none; }
ul.history { list-style: none; margin: 6px 0 0; padding: 0; display: grid; gap: 2px; font-size: 13px; }
ul.history li { display: flex; justify-content: space-between; gap: 8px; padding: 2px 0; border-bottom: 1px solid var(--line); }
details summary { cursor: pointer; font-size: 13px; font-weight: 600; margin-top: 8px; }
@media print { .cloud { display: none; } }

.bar.sync { padding: 8px 12px; border-radius: 8px; background: var(--info-bg); color: var(--info); font-size: 13px; }
.bar.sync.dirty { background: var(--warn-bg); color: var(--warn); }
.bar.sync span { flex: 1; min-width: 200px; }

dialog.changes { border: 1px solid var(--line); border-radius: 12px; padding: 16px; max-width: min(640px, calc(100vw - 32px)); width: 100%; background: var(--panel); color: var(--ink); }
dialog.changes::backdrop { background: rgba(0,0,0,.35); }
dialog.changes h2 { margin: 0 0 8px; font-size: 16px; }
dialog.changes ul { max-height: 50vh; overflow: auto; margin: 0 0 12px; padding-left: 18px; font-size: 13px; }
ul.log { list-style: none; margin: 8px 0 0; padding: 0; font-size: 13px; display: grid; gap: 8px; max-height: 50vh; overflow: auto; }
ul.log ul { margin: 2px 0 0; padding-left: 18px; }

.foot { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; justify-content: center; padding: 24px 16px 32px; color: var(--muted); font-size: 13px; }
.btn.small { padding: 2px 8px; font-size: 12px; }
@media print { .foot { display: none; } }