:root {
  --bg: #F7F6F3;
  --surface: #FFFFFF;
  --surface-2: #FBFAF8;
  --text: #23211D;
  --text-muted: #6B6459;
  --border: #E5E1D8;
  --accent: #C8630A;
  --accent-soft: #FBE7D4;
  --full: #E8875A;
  --full-soft: #FBDECE;
  --half: #D9A441;
  --half-soft: #F6E6C2;
  --weekend: #F0EEE8;
  --danger: #B3261E;
  --danger-soft: #FBE2E0;
  --shadow: 0 1px 2px rgba(35,33,29,.06), 0 4px 16px rgba(35,33,29,.06);
  --radius: 12px;
  --font-ui: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
  --font-num: "Roboto Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1B1A17;
    --surface: #242220;
    --surface-2: #2B2925;
    --text: #EFEBE3;
    --text-muted: #A69E90;
    --border: #3A3733;
    --accent: #E08A3E;
    --accent-soft: #3A2A18;
    --full: #E08A3E;
    --full-soft: #3D2A17;
    --half: #D9B75B;
    --half-soft: #3A3018;
    --weekend: #232120;
    --danger: #E5847D;
    --danger-soft: #3A2220;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 4px 16px rgba(0,0,0,.3);
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  line-height: 1.5;
}

.topbar {
  display: flex;
  align-items: center;
  padding: 20px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 20px;
  flex: none;
}
.topbar h1 { font-size: 20px; margin: 0; letter-spacing: .02em; }
.subtitle { margin: 2px 0 0; font-size: 13px; color: var(--text-muted); }

.banner {
  margin: 16px 28px 0;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--text);
  font-size: 14px;
}
.banner code {
  background: rgba(0,0,0,.08);
  padding: 1px 6px;
  border-radius: 4px;
  font-family: var(--font-num);
}
.banner-error { background: var(--danger-soft); color: var(--danger); }

main { padding: 20px 28px 40px; max-width: 1180px; margin: 0 auto; }

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}
.month-nav { display: flex; align-items: center; gap: 10px; }
.month-label {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 18px;
  font-weight: 700;
  min-width: 130px;
  text-align: center;
}
.icon-btn {
  width: 32px; height: 32px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 16px;
  cursor: pointer;
}
.icon-btn:hover { background: var(--surface-2); }
.ghost-btn {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 13px;
  cursor: pointer;
}
.ghost-btn:hover { color: var(--text); border-color: var(--accent); }

.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.action-btn {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 13px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.action-btn:hover { border-color: var(--accent); color: var(--accent); }
.action-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 700;
}
.action-primary:hover { background: var(--accent); color: #fff; opacity: .9; }
.action-btn:disabled { opacity: .5; cursor: not-allowed; }

.layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 20px;
  align-items: start;
}
@media (max-width: 780px) {
  .layout { grid-template-columns: 1fr; }
}

.roster {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}
.roster h2 {
  font-size: 14px;
  margin: 0 0 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.count-pill {
  background: var(--surface-2);
  border-radius: 999px;
  padding: 1px 8px;
  font-family: var(--font-num);
}
.employee-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.employee-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 8px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
}
.employee-item:hover { background: var(--surface-2); }
.employee-item.active { background: var(--accent-soft); font-weight: 700; }
.employee-item .dot { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.employee-item .days {
  margin-left: auto;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  color: var(--text-muted);
  font-size: 12px;
}
.hint { font-size: 12px; color: var(--text-muted); margin: 10px 2px 0; }

.calendar-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}
.weekday-row {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  font-size: 12px;
  color: var(--text-muted);
  padding: 0 2px 8px;
  text-align: center;
}
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}
.day-cell {
  min-height: 92px;
  border-radius: 10px;
  border: 1px solid var(--border);
  padding: 6px 6px 8px;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.day-cell.weekend { background: var(--weekend); }
.day-cell.empty { border-style: dashed; background: transparent; border-color: transparent; }
.day-cell.today { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.day-num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
}
.day-cell.today .day-num { color: var(--accent); }
.chip-stack { display: flex; flex-direction: column; gap: 3px; overflow: hidden; }
.chip {
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  background: var(--full-soft);
  color: var(--text);
}
.chip.half { background: var(--half-soft); }
.chip i.dot { width: 6px; height: 6px; border-radius: 50%; flex: none; }
.chip.dimmed { opacity: .25; }

.legend { display: flex; gap: 18px; margin-top: 14px; font-size: 12px; color: var(--text-muted); flex-wrap: wrap; }
.legend-item { display: flex; align-items: center; gap: 6px; }
.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; }
.dot-full { background: var(--full); }
.dot-half { background: var(--half); }
.dot-weekend { background: var(--weekend); border: 1px solid var(--border); }

.pagefoot {
  text-align: center;
  color: var(--text-muted);
  font-size: 12px;
  padding: 20px 0 32px;
}

.leave-dialog {
  border: none;
  border-radius: var(--radius);
  padding: 22px 24px 20px;
  width: min(420px, 90vw);
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow);
}
.leave-dialog::backdrop { background: rgba(20, 18, 15, .55); }
.leave-dialog h2 { margin: 0 0 16px; font-size: 18px; }
.leave-dialog form { display: flex; flex-direction: column; gap: 12px; }
.leave-dialog label {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 13px;
  color: var(--text-muted);
}
.leave-dialog input, .leave-dialog select {
  font: inherit;
  font-size: 14px;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
}
.leave-dialog input:focus, .leave-dialog select:focus {
  outline: none;
  border-color: var(--accent);
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.field-hint { margin: -6px 0 0; font-size: 12px; color: var(--text-muted); }
.dialog-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 6px; }
.form-status {
  font-size: 13px;
  padding: 8px 10px;
  border-radius: 8px;
  background: var(--accent-soft);
}
.form-status.error { background: var(--danger-soft); color: var(--danger); }
.form-status.success { background: var(--full-soft); }

@media print {
  .topbar .subtitle, .banner, .toolbar .actions, .hint, .ghost-btn, .leave-dialog, .icon-btn { display: none !important; }
  body { background: #fff; }
  .roster, .calendar-wrap { box-shadow: none; border-color: #ccc; }
  .layout { grid-template-columns: 160px 1fr; }
  main { padding: 0; max-width: none; }
  .day-cell { min-height: 70px; }
}