/* 手机 / 平板优先；柜台按钮要大，手指好点 */
:root {
  --bg: #f5f7fa; --card: #fff; --text: #1d2733; --muted: #66727f; --line: #dfe4ea;
  --brand: #0e7c86; --brand-dark: #095e66; --ok: #1f8a4c; --warn: #b7791f; --bad: #c0392b;
  --radius: 10px;
}
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--brand); }
.sub-bar { text-align: center; font-size: 14px; padding: 6px 10px; background: #fdf3e1; color: #7a5212; }
.sub-bar.sub-expired { background: #fbeaea; color: var(--bad); font-weight: 600; }
.demo-bar {background: #fdf3e1; color: #7a5212; text-align: center; font-size: 13px; padding: 4px 8px; }
header.top {background: var(--brand); color: #fff; padding: 10px 16px; display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
header.top a { color: #fff; text-decoration: none; }
header.top .brand { font-weight: 700; margin-right: auto; }
header.top nav { display: flex; gap: 14px; flex-wrap: wrap; font-size: 15px; }
header.top form { margin: 0; }
main { max-width: 1100px; margin: 0 auto; padding: 16px; }
h1 { font-size: 22px; margin: 4px 0 14px; }
h2 { font-size: 18px; margin: 18px 0 8px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; margin-bottom: 14px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.grow { flex: 1; }
.right { text-align: right; }
.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }

.btn, button { display: inline-block; border: 1px solid var(--brand); background: var(--brand); color: #fff; padding: 10px 16px;
  border-radius: 8px; font-size: 16px; cursor: pointer; text-decoration: none; }
.btn.secondary, button.secondary { background: #fff; color: var(--brand); }
.btn.danger, button.danger { background: var(--bad); border-color: var(--bad); }
.btn.big, button.big { padding: 14px 22px; font-size: 18px; }
.btn.small, button.small { padding: 5px 10px; font-size: 14px; }
button:disabled { opacity: .5; cursor: not-allowed; }
.linkbtn { background: none; border: 0; color: inherit; padding: 0; font-size: inherit; text-decoration: underline; }

input, select, textarea { font-size: 16px; padding: 9px 10px; border: 1px solid var(--line); border-radius: 8px; width: 100%; background: #fff; }
input[type=checkbox] { width: auto; }
label { display: block; font-size: 14px; color: var(--muted); margin: 8px 0 4px; }
.field { margin-bottom: 10px; }
.errorlist { color: var(--bad); margin: 4px 0; padding-left: 18px; font-size: 14px; }
.helptext { font-size: 13px; color: var(--muted); }

table { width: 100%; border-collapse: collapse; background: var(--card); }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
/* 表头（第一行）小字灰色；表中间的 th（合计 / 应付）要醒目 */
th { font-weight: 700; }
tr:first-child > th { font-size: 13px; color: var(--muted); font-weight: 600; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }

.messages { list-style: none; padding: 0; margin: 0 0 12px; }
.messages li { padding: 10px 14px; border-radius: 8px; margin-bottom: 6px; background: #e8f5ee; color: var(--ok); }
.messages li.error { background: #fbeaea; color: var(--bad); }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; background: #e9eef3; color: var(--muted); }
.badge.paid, .badge.claimed { background: #e3f4ea; color: var(--ok); }
.badge.partial { background: #fdf3e1; color: var(--warn); }
.badge.unpaid, .badge.cancelled { background: #fbeaea; color: var(--bad); }
.badge.ready, .badge.ready-for-pickup { background: #dff3f5; color: var(--brand-dark); }
.sms-card.sms-pending { border: 2px solid var(--brand); }
.sms-text { white-space: pre-wrap; word-break: break-all; background: #f1f4f7; border-radius: 8px; padding: 10px; font: 14px/1.4 system-ui, sans-serif; margin: 10px 0 0; }
.alert-pay {background: #fbeaea; color: var(--bad); border: 2px solid var(--bad); border-radius: var(--radius); padding: 14px 16px; margin-bottom: 14px; font-size: 17px; }
.alert-pay b { display: block; font-size: 20px; margin-bottom: 4px; }

.board { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.board .col { background: #eaeef2; border-radius: var(--radius); padding: 10px; min-height: 120px; }
.board .col h3 { margin: 0 0 8px; font-size: 15px; }
.ocard { display: block; background: #fff; border-radius: 8px; padding: 10px; margin-bottom: 8px; text-decoration: none; color: inherit; border: 1px solid var(--line); }
.ocard b { font-size: 17px; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; }
.stat .v { font-size: 22px; font-weight: 700; }
.stat .k { font-size: 13px; color: var(--muted); }
.variance-bad { color: var(--bad); font-weight: 700; }

.pinpad { max-width: 320px; margin: 30px auto; text-align: center; }
.pinpad input { font-size: 30px; text-align: center; letter-spacing: 10px; }
.keys { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 12px; }
.keys button { font-size: 24px; padding: 16px 0; background: #fff; color: var(--text); border-color: var(--line); }

.items td input { width: 90px; }
.total-bar { position: sticky; bottom: 0; background: var(--card); border-top: 1px solid var(--line); padding: 12px 16px; margin: 0 -16px; display: flex; gap: 12px; align-items: center; }
.total-bar .amt { font-size: 22px; font-weight: 700; margin-right: auto; }

.steps { display: flex; gap: 4px; margin: 14px 0; }
.steps div { flex: 1; text-align: center; font-size: 12px; padding-top: 8px; border-top: 5px solid var(--line); color: var(--muted); }
.steps div.done { border-color: var(--brand); color: var(--text); }
.steps div.current { font-weight: 700; }
.code { font-size: 34px; font-weight: 800; letter-spacing: 6px; }

@media (max-width: 600px) {
  main { padding: 12px; }
  .hide-sm { display: none; }
}