:root {
  --navy: #143246;
  --teal: #0e7c7b;
  --teal-dark: #0b5f5e;
  --bg: #eef2f4;
  --card: #fff;
  --muted: #5b6b75;
  --line: #e0e6e9;
  --danger: #9b1c1c;
  --ok: #0b5f5e;
  --warn: #8a5a00;
  --shadow: 0 8px 24px rgba(20, 50, 70, 0.08);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { min-height: 100%; }
body {
  font-family: "PingFang HK", "Noto Sans CJK TC", "Noto Sans TC", system-ui, sans-serif;
  background: linear-gradient(180deg, #f7f9fa 0%, var(--bg) 100%);
  color: #1c2a33;
}
button, input, textarea, select { font: inherit; }
a { color: var(--teal-dark); }
.wrap { max-width: 1100px; margin: 0 auto; padding: 28px 20px 60px; }
header.top {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; margin-bottom: 22px; flex-wrap: wrap;
}
h1 { font-size: 28px; color: var(--navy); }
.sub { color: var(--muted); margin-top: 4px; font-size: 14px; }
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  border-radius: 999px; padding: 6px 12px; font-size: 13px; font-weight: 600;
  background: #e9eef1; color: var(--navy);
}
.pill.ok { background: #e6f4f3; color: var(--ok); }
.pill.qr { background: #fff4d6; color: var(--warn); }
.pill.off { background: #fde8e8; color: var(--danger); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.auth {
  max-width: 420px; margin: 12vh auto; background: var(--card);
  border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow);
  padding: 32px;
}
.auth h1 { font-size: 24px; margin-bottom: 8px; }
.auth p { color: var(--muted); margin-bottom: 20px; line-height: 1.5; }
label { display: block; font-size: 14px; color: var(--navy); margin: 12px 0 6px; font-weight: 600; }
input[type="text"], input[type="password"], input[type="tel"], input[type="time"], input[type="date"], textarea, select {
  width: 100%; padding: 10px 12px; border: 1px solid #cfd8dd; border-radius: 10px;
  background: #fff; color: inherit;
}
textarea { min-height: 88px; resize: vertical; }
.row { display: flex; gap: 12px; flex-wrap: wrap; }
.row > * { flex: 1; min-width: 140px; }
.btn {
  appearance: none; border: 0; border-radius: 10px; padding: 10px 16px;
  background: var(--teal); color: #fff; font-weight: 700; cursor: pointer;
}
.btn:hover { background: var(--teal-dark); }
.btn.secondary { background: #e9eef1; color: var(--navy); }
.btn.secondary:hover { background: #dce3e7; }
.btn.danger { background: #b42318; }
.btn.ghost { background: transparent; color: var(--navy); padding: 8px 10px; }
.btn[disabled] { opacity: .55; cursor: not-allowed; }
.err { color: var(--danger); font-size: 14px; margin-top: 10px; min-height: 1em; }
.tabs { display: flex; gap: 6px; margin-bottom: 18px; flex-wrap: wrap; }
.tabs button {
  border: 1px solid var(--line); background: #fff; color: var(--navy);
  border-radius: 999px; padding: 8px 14px; cursor: pointer; font-weight: 600;
}
.tabs button.active { background: var(--navy); color: #fff; border-color: var(--navy); }
.grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 18px; }
@media (max-width: 860px) { .grid { grid-template-columns: 1fr; } }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 18px;
  box-shadow: var(--shadow); padding: 20px;
}
.card h2 { font-size: 18px; color: var(--navy); margin-bottom: 12px; }
.list { display: flex; flex-direction: column; gap: 10px; }
.item {
  border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px;
  display: flex; justify-content: space-between; gap: 12px; align-items: flex-start;
}
.item .meta { color: var(--muted); font-size: 13px; margin-top: 3px; }
.item .actions { display: flex; gap: 4px; flex-shrink: 0; }
.empty { color: var(--muted); padding: 16px 0; }
.qr { display: block; width: 240px; height: 240px; margin: 8px auto; background: #fff; border-radius: 12px; }
.days { display: flex; flex-wrap: wrap; gap: 8px; }
.days label { margin: 0; font-weight: 500; display: flex; gap: 6px; align-items: center; }
.muted { color: var(--muted); font-size: 13px; line-height: 1.5; }
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th, .table td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: top; }
.badge { font-size: 12px; font-weight: 700; border-radius: 999px; padding: 2px 8px; }
.badge.sent, .badge.test { background: #e6f4f3; color: var(--ok); }
.badge.error { background: #fde8e8; color: var(--danger); }
.badge.skipped { background: #fff4d6; color: var(--warn); }
.footer-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 16px; flex-wrap: wrap; }
.weekday-msgs details { margin-top: 10px; }
.weekday-msgs summary { cursor: pointer; color: var(--teal-dark); font-weight: 600; }
.date-row { display: grid; grid-template-columns: 150px 1fr auto; gap: 8px; align-items: start; margin-top: 8px; }
@media (max-width: 640px) { .date-row { grid-template-columns: 1fr; } }