/* TBW POS — plain CSS, no frameworks */
:root {
  --navy: #1b2a4a;
  --sidebar: #141f36;
  --accent: #2c5a83;
  --accent-dark: #1f4568;
  --bg: #f2f4f8;
  --card: #ffffff;
  --ink: #1e2430;
  --muted: #68738a;
  --line: #dfe4ec;
  --green: #1e8e3e;
  --red: #c5221f;
  --amber: #a86a0b;
  --radius: 10px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 15px;
}

.layout { display: flex; min-height: 100vh; }

/* ---------- Sidebar ---------- */
.sidebar {
  width: 220px; flex: 0 0 220px;
  background: var(--sidebar);
  color: #cfd8e6;
  display: flex; flex-direction: column;
  position: sticky; top: 0; height: 100vh;
}
.brand { padding: 18px 16px; border-bottom: 1px solid rgba(255,255,255,.08); }
.brand .name { color: #fff; font-size: 1.25rem; font-weight: 700; letter-spacing: .5px; }
.brand .sub { font-size: .75rem; color: #8fa0bd; margin-top: 2px; }
.nav { display: flex; flex-direction: column; padding: 10px 0; flex: 1; }
.nav a {
  color: #cfd8e6; text-decoration: none;
  padding: 12px 18px; font-size: .95rem;
  border-left: 3px solid transparent;
}
.nav a:hover { background: rgba(255,255,255,.06); color: #fff; }
.nav a.active { background: rgba(44,90,131,.45); color: #fff; border-left-color: #6aa6dd; font-weight: 600; }
.sidebar .logout { margin: 12px; }
.sidebar-foot { padding: 12px 16px; font-size: .75rem; color: #8fa0bd; border-top: 1px solid rgba(255,255,255,.08); }

/* ---------- Content / topbar ---------- */
.content { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  background: var(--card); border-bottom: 1px solid var(--line);
  padding: 10px 20px; display: flex; align-items: center; gap: 16px;
  position: sticky; top: 0; z-index: 50;
}
.topbar h1 { font-size: 1.2rem; margin: 0; flex: 1; }
.user-badge { font-size: .85rem; color: var(--muted); white-space: nowrap; }
.user-badge b { color: var(--ink); }
.role-pill {
  display: inline-block; font-size: .72rem; font-weight: 700;
  background: var(--accent); color: #fff; border-radius: 999px;
  padding: 2px 10px; margin-left: 6px; text-transform: uppercase; letter-spacing: .4px;
}
main { padding: 20px; max-width: 1200px; width: 100%; margin: 0 auto; }

/* ---------- Offline ---------- */
.offline-switch { display: flex; align-items: center; gap: 8px; font-size: .85rem; font-weight: 600; cursor: pointer; user-select: none; }
.offline-switch input { width: 18px; height: 18px; accent-color: var(--amber); cursor: pointer; }
.offline-switch.on { color: var(--amber); }
.offline-banner {
  background: #fff3d6; color: #7a4d00; border: 1px solid #ecd28a;
  padding: 8px 16px; font-size: .9rem; font-weight: 600;
  display: flex; gap: 10px; align-items: center;
}
.offline-banner .count { background: var(--amber); color: #fff; border-radius: 999px; padding: 1px 10px; font-size: .8rem; }

/* ---------- Cards / grids ---------- */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin-bottom: 18px; box-shadow: 0 1px 2px rgba(20,30,50,.05); }
.card h2 { margin: 0 0 12px; font-size: 1.05rem; }
.card h3 { margin: 0 0 10px; font-size: .95rem; }
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.stat { text-align: left; }
.stat .label { font-size: .8rem; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; }
.stat .value { font-size: 1.6rem; font-weight: 700; margin-top: 4px; }
.stat .sub { font-size: .8rem; color: var(--muted); margin-top: 2px; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .93rem; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); }
th { background: #f7f9fc; font-size: .78rem; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); white-space: nowrap; }
tr:hover td { background: #fafbfe; }
tr.clickable { cursor: pointer; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.money { font-variant-numeric: tabular-nums; font-weight: 600; }

/* ---------- Forms & buttons ---------- */
label { display: block; font-size: .82rem; font-weight: 600; color: var(--muted); margin: 10px 0 4px; }
input[type=text], input[type=number], input[type=date], input[type=password], input[type=email], select, textarea {
  width: 100%; padding: 10px 12px; font-size: 1rem;
  border: 1px solid var(--line); border-radius: 8px; background: #fff; color: var(--ink);
}
input:focus, select:focus, textarea:focus { outline: 2px solid #9cc3ea; border-color: var(--accent); }
.row { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
.row > * { flex: 1; min-width: 140px; }
button, .btn {
  font-size: 1rem; padding: 10px 18px; border-radius: 8px; border: 1px solid transparent;
  cursor: pointer; font-weight: 600; background: var(--accent); color: #fff;
}
button:hover, .btn:hover { background: var(--accent-dark); }
button:disabled { opacity: .5; cursor: not-allowed; }
.btn-secondary { background: #e8ecf3; color: var(--ink); border-color: var(--line); }
.btn-secondary:hover { background: #dbe1ec; }
.btn-danger { background: var(--red); }
.btn-danger:hover { background: #a11d1a; }
.btn-success { background: var(--green); }
.btn-success:hover { background: #177233; }
.btn-sm { font-size: .82rem; padding: 6px 12px; }
.link { background: none; border: none; color: var(--accent); padding: 2px 4px; font-size: .85rem; font-weight: 600; }
.link:hover { text-decoration: underline; background: none; }
.error { color: var(--red); font-size: .9rem; margin-top: 8px; }
.success { color: var(--green); font-size: .95rem; font-weight: 600; margin-top: 8px; }
.hint { font-size: .82rem; color: var(--muted); margin-top: 4px; }

/* ---------- POS checkout ---------- */
.pos-layout { display: grid; grid-template-columns: 1fr 380px; gap: 18px; align-items: start; }
.tender-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 12px 0; }
.tender-btn { padding: 18px 8px; font-size: 1.15rem; border-radius: 12px; background: #e8ecf3; color: var(--ink); border: 2px solid var(--line); }
.tender-btn.selected { background: var(--navy); color: #fff; border-color: var(--navy); }
.tender-btn:hover { background: #dbe1ec; }
.tender-btn.selected:hover { background: var(--navy); }
.qty-stepper { display: inline-flex; align-items: center; gap: 2px; }
.qty-stepper button { width: 40px; height: 40px; padding: 0; font-size: 1.2rem; border-radius: 8px; }
.qty-stepper .qty { min-width: 46px; text-align: center; font-weight: 700; font-size: 1.05rem; }
.totals { margin-top: 12px; }
.totals .trow { display: flex; justify-content: space-between; padding: 6px 0; font-size: 1rem; }
.totals .trow.grand { font-size: 1.5rem; font-weight: 800; border-top: 2px solid var(--line); margin-top: 6px; padding-top: 10px; }
.tier-badge { display: inline-block; font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .5px; background: #e3ecf5; color: var(--accent-dark); border-radius: 999px; padding: 3px 12px; margin-left: 8px; vertical-align: middle; }
.job-required { color: var(--red); font-weight: 700; font-size: .8rem; }

/* search dropdown */
.search-wrap { position: relative; }
.search-results {
  position: absolute; top: 100%; left: 0; right: 0; z-index: 100;
  background: #fff; border: 1px solid var(--line); border-radius: 0 0 10px 10px;
  box-shadow: 0 8px 24px rgba(20,30,50,.15); max-height: 320px; overflow-y: auto;
}
.search-results .item { padding: 10px 14px; cursor: pointer; border-bottom: 1px solid #f0f2f6; }
.search-results .item:hover, .search-results .item.hl { background: #eef3fa; }
.search-results .item .nm { font-weight: 600; }
.search-results .item .meta { font-size: .8rem; color: var(--muted); }
.stock-ok { color: var(--green); font-weight: 600; }
.stock-low { color: var(--amber); font-weight: 700; }
.stock-out { color: var(--red); font-weight: 700; }

/* ---------- Modal ---------- */
.modal-back { position: fixed; inset: 0; background: rgba(15,22,38,.55); z-index: 200; display: flex; align-items: flex-start; justify-content: center; padding: 40px 16px; overflow-y: auto; }
.modal { background: #fff; border-radius: 12px; max-width: 860px; width: 100%; padding: 22px; position: relative; box-shadow: 0 20px 60px rgba(0,0,0,.3); }
.modal .close-x { position: absolute; top: 10px; right: 14px; font-size: 1.4rem; background: none; border: none; color: var(--muted); cursor: pointer; padding: 4px 8px; }
.modal h2 { margin-top: 0; }
.audit { list-style: none; padding: 0; margin: 0; font-size: .88rem; }
.audit li { padding: 8px 0; border-bottom: 1px dashed var(--line); }
.audit .when { color: var(--muted); font-size: .78rem; }

/* ---------- Status pills ---------- */
.pill { display: inline-block; font-size: .75rem; font-weight: 700; border-radius: 999px; padding: 2px 10px; text-transform: uppercase; letter-spacing: .4px; }
.pill-open { background: #e3ecf5; color: var(--accent-dark); }
.pill-partial { background: #fff3d6; color: #7a4d00; }
.pill-paid { background: #dff0e2; color: #145c28; }
.pill-void { background: #f0d9d8; color: #8f1d1a; }

/* ---------- Login ---------- */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; background: linear-gradient(135deg, var(--navy), var(--accent)); }
.login-card { background: #fff; border-radius: 14px; padding: 32px; width: 380px; max-width: 100%; box-shadow: 0 20px 60px rgba(0,0,0,.35); }
.login-card h1 { margin: 0 0 4px; color: var(--navy); }
.login-card .sub { color: var(--muted); margin-bottom: 18px; font-size: .9rem; }
.demo-creds { margin-top: 16px; font-size: .82rem; background: #f4f6fa; border: 1px dashed var(--line); border-radius: 8px; padding: 10px 12px; color: var(--muted); }
.demo-creds code { color: var(--ink); }

/* ---------- Filters bar ---------- */
.filters { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 16px; }
.filters .fld { min-width: 150px; flex: 0 1 auto; }
.filters .fld.grow { flex: 1 1 200px; }

/* ---------- Payments ---------- */
.pay-group { border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 14px; overflow: hidden; }
.pay-group > .ghead { background: #f0f4fa; padding: 10px 14px; font-weight: 700; display: flex; justify-content: space-between; align-items: center; }
.alloc-input { width: 110px !important; text-align: right; }
.pay-summary { position: sticky; bottom: 0; background: #fff; border-top: 2px solid var(--line); padding: 14px 20px; display: flex; gap: 18px; align-items: center; flex-wrap: wrap; box-shadow: 0 -4px 16px rgba(20,30,50,.08); }
.pay-summary .big { font-size: 1.5rem; font-weight: 800; }

/* expandable rows */
.expander { cursor: pointer; }
.detail-panel td { background: #f8fafd; }
.jobs-box { padding: 4px 8px 12px 28px; }

/* misc */
.mt { margin-top: 12px; }
.mb { margin-bottom: 12px; }
.hidden { display: none !important; }
.empty { text-align: center; color: var(--muted); padding: 30px 10px; }
.kv { display: grid; grid-template-columns: 160px 1fr; gap: 6px 12px; font-size: .93rem; }
.kv dt { color: var(--muted); font-weight: 600; }
.kv dd { margin: 0; }

@media (max-width: 960px) {
  .pos-layout { grid-template-columns: 1fr; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
  .layout { flex-direction: column; }
  .sidebar { width: 100%; flex: none; height: auto; position: static; }
  .nav { flex-direction: row; overflow-x: auto; padding: 6px; }
  .nav a { border-left: none; border-bottom: 3px solid transparent; white-space: nowrap; padding: 10px 14px; }
  .nav a.active { border-bottom-color: #6aa6dd; }
  .sidebar-foot, .sidebar .logout { display: none; }
}
@media (max-width: 560px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  main { padding: 12px; }
  .tender-row { grid-template-columns: 1fr; }
}