:root {
  --bg: #f4f6f8;
  --surface: #ffffff;
  --border: #e2e6ea;
  --text: #1b2733;
  --muted: #6b7a8c;
  --brand: #0f6e4f;
  --brand-dark: #0b5239;
  --brand-soft: #e8f3ee;
  --danger: #c0392b;
  --danger-soft: #fdeceb;
  --warn: #b8730a;
  --warn-soft: #fdf3e2;
  --info: #1d6fa5;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16,32,48,.06), 0 4px 12px rgba(16,32,48,.05);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- shell ---------- */
.shell { display: flex; min-height: 100vh; }
.sidebar {
  width: 218px; flex: 0 0 218px; background: #10212e; color: #c9d6e2;
  padding: 0 0 24px; position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.brand {
  padding: 18px 18px 14px; font-size: 16px; font-weight: 700; color: #fff;
  border-bottom: 1px solid rgba(255,255,255,.08); letter-spacing: .2px;
}
.brand small { display: block; font-weight: 400; font-size: 11px; color: #7f95a8; margin-top: 3px; letter-spacing: .3px; text-transform: uppercase; }
.nav { padding: 10px 8px; }
.nav-label { font-size: 10.5px; text-transform: uppercase; letter-spacing: .8px; color: #6b8096; padding: 14px 12px 6px; }
.nav a {
  display: flex; align-items: center; gap: 9px; padding: 9px 12px; border-radius: 7px;
  color: #c9d6e2; font-size: 14px; margin-bottom: 1px;
}
.nav a:hover { background: rgba(255,255,255,.07); text-decoration: none; color: #fff; }
.nav a.active { background: var(--brand); color: #fff; font-weight: 600; }
.nav a .ico { width: 17px; text-align: center; opacity: .95; font-size: 14px; }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  background: var(--surface); border-bottom: 1px solid var(--border);
  padding: 12px 22px; display: flex; align-items: center; gap: 14px;
  position: sticky; top: 0; z-index: 20;
}
.topbar h1 { font-size: 17px; margin: 0; font-weight: 650; }
.topbar .spacer { flex: 1; }
.who { font-size: 13px; color: var(--muted); text-align: right; line-height: 1.3; }
.who b { display: block; color: var(--text); font-weight: 600; }
.content { padding: 20px 22px 60px; max-width: 1280px; width: 100%; }

.menu-toggle { display: none; background: none; border: 1px solid var(--border); border-radius: 7px; padding: 6px 10px; font-size: 16px; cursor: pointer; }

/* ---------- cards & grid ---------- */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow); margin-bottom: 18px;
}
.card-head {
  padding: 13px 16px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.card-head h2 { font-size: 14.5px; margin: 0; font-weight: 650; }
.card-head .spacer { flex: 1; }
.card-body { padding: 16px; }
.card-body.tight { padding: 0; }

.grid { display: grid; gap: 14px; }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- stat tiles ---------- */
.stat {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px 15px; box-shadow: var(--shadow);
}
.stat .label { font-size: 11.5px; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); font-weight: 600; }
.stat .value { font-size: 23px; font-weight: 700; margin-top: 6px; letter-spacing: -.4px; }
.stat .sub { font-size: 12px; color: var(--muted); margin-top: 3px; }
.stat.accent { border-left: 3px solid var(--brand); }
.stat.warn   { border-left: 3px solid var(--warn); }
.stat.danger { border-left: 3px solid var(--danger); }
.stat.info   { border-left: 3px solid var(--info); }

/* ---------- tables ---------- */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th {
  text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: .6px;
  color: var(--muted); font-weight: 650; padding: 10px 12px;
  border-bottom: 1px solid var(--border); background: #fafbfc; white-space: nowrap;
}
td { padding: 10px 12px; border-bottom: 1px solid #eef1f4; vertical-align: middle; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: #fafbfc; }
.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.empty { padding: 34px 16px; text-align: center; color: var(--muted); font-size: 14px; }
.table-wrap { overflow-x: auto; }

/* ---------- forms ---------- */
label { display: block; font-size: 12.5px; font-weight: 600; color: #46566a; margin-bottom: 5px; }
input[type=text], input[type=number], input[type=password], input[type=date],
input[type=search], input[type=tel], select, textarea {
  width: 100%; padding: 9px 11px; border: 1px solid #d3dae1; border-radius: 8px;
  font-size: 14.5px; font-family: inherit; background: #fff; color: var(--text);
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-soft);
}
input[readonly] { background: #f3f5f7; color: var(--muted); }
.field { margin-bottom: 13px; }
.field .hint { font-size: 11.5px; color: var(--muted); margin-top: 4px; font-weight: 400; }
.row { display: flex; gap: 12px; flex-wrap: wrap; }
.row > * { flex: 1; min-width: 150px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 15px; border-radius: 8px; border: 1px solid transparent;
  background: var(--brand); color: #fff; font-size: 14px; font-weight: 600;
  cursor: pointer; font-family: inherit; white-space: nowrap;
}
.btn:hover { background: var(--brand-dark); text-decoration: none; color: #fff; }
.btn.sm { padding: 6px 11px; font-size: 13px; }
.btn.ghost { background: #fff; border-color: #d3dae1; color: var(--text); }
.btn.ghost:hover { background: #f4f6f8; color: var(--text); }
.btn.danger { background: var(--danger); }
.btn.danger:hover { background: #a23124; }
.btn.block { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ---------- misc ---------- */
.badge {
  display: inline-block; padding: 3px 9px; border-radius: 20px;
  font-size: 11.5px; font-weight: 650; letter-spacing: .2px;
}
.badge.green  { background: var(--brand-soft); color: var(--brand-dark); }
.badge.red    { background: var(--danger-soft); color: var(--danger); }
.badge.amber  { background: var(--warn-soft); color: var(--warn); }
.badge.blue   { background: #e7f1f8; color: var(--info); }
.badge.grey   { background: #eef1f4; color: var(--muted); }

.alert { padding: 11px 14px; border-radius: 8px; margin-bottom: 14px; font-size: 14px; border: 1px solid; }
.alert.ok    { background: var(--brand-soft); border-color: #bcdccd; color: var(--brand-dark); }
.alert.error { background: var(--danger-soft); border-color: #f3c9c5; color: var(--danger); }
.alert.info  { background: #e7f1f8; border-color: #c4dcec; color: var(--info); }
.alert.warn  { background: var(--warn-soft); border-color: #f0dcb8; color: var(--warn); }

.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.strike { text-decoration: line-through; color: var(--muted); }
.page-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 16px; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 16px; flex-wrap: wrap; }
.tabs a { padding: 8px 14px; font-size: 13.5px; font-weight: 600; color: var(--muted); border-bottom: 2px solid transparent; }
.tabs a.active { color: var(--brand); border-bottom-color: var(--brand); }
.tabs a:hover { text-decoration: none; color: var(--text); }
.chart-box { position: relative; height: 280px; }

/* ---------- POS ---------- */
.pos { display: grid; grid-template-columns: 1fr 380px; gap: 16px; align-items: start; }
.pos-results { max-height: 420px; overflow-y: auto; }
.pos-item { padding: 10px 12px; border-bottom: 1px solid #eef1f4; cursor: pointer; display: flex; gap: 10px; align-items: center; }
.pos-item:hover { background: var(--brand-soft); }
.pos-item .pname { font-weight: 600; font-size: 14px; }
.pos-item .pmeta { font-size: 12px; color: var(--muted); margin-top: 2px; }
.cart-line { padding: 10px 0; border-bottom: 1px solid #eef1f4; }
.cart-line .cl-top { display: flex; align-items: center; gap: 8px; }
.cart-line .cl-name { flex: 1; font-weight: 600; font-size: 13.5px; }
.cart-line .cl-inputs { display: flex; gap: 6px; margin-top: 7px; align-items: center; }
.cart-line .cl-inputs input, .cart-line .cl-inputs select { padding: 6px 8px; font-size: 13px; }
.cart-line .cl-qty { width: 68px; }
.cart-line .cl-price { width: 98px; }
.cart-total { display: flex; justify-content: space-between; padding: 6px 0; font-size: 14px; }
.cart-total.grand { font-size: 19px; font-weight: 700; border-top: 2px solid var(--text); margin-top: 8px; padding-top: 10px; }
.x-btn { background: none; border: 0; color: var(--danger); cursor: pointer; font-size: 17px; line-height: 1; padding: 2px 5px; }
.seg { display: flex; gap: 0; border: 1px solid #d3dae1; border-radius: 8px; overflow: hidden; }
.seg label { flex: 1; margin: 0; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg span {
  display: block; padding: 8px 6px; text-align: center; font-size: 13px; font-weight: 600;
  cursor: pointer; background: #fff; color: var(--muted); border-right: 1px solid #d3dae1;
}
.seg label:last-child span { border-right: 0; }
.seg input:checked + span { background: var(--brand); color: #fff; }

/* ---------- login ---------- */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; background: #10212e; }
.login-card { background: #fff; border-radius: 14px; padding: 30px 28px; width: 100%; max-width: 380px; box-shadow: 0 10px 40px rgba(0,0,0,.3); }
.login-card h1 { margin: 0 0 4px; font-size: 21px; }
.login-card p.sub { margin: 0 0 22px; color: var(--muted); font-size: 13.5px; }

/* ---------- receipt ---------- */
.receipt { max-width: 340px; margin: 0 auto; background: #fff; padding: 18px; font-family: "SF Mono", Menlo, Consolas, monospace; font-size: 12.5px; color: #000; }
.receipt h2 { text-align: center; font-size: 15px; margin: 0 0 3px; }
.rc-logo { text-align: center; margin: 0 0 8px; }
.rc-logo img { max-height: 70px; max-width: 190px; object-fit: contain; }
@media print { .rc-logo img { max-height: 62px; filter: grayscale(100%) contrast(140%); } }
.receipt .rc-center { text-align: center; }
.receipt .rc-line { border-top: 1px dashed #999; margin: 9px 0; }
.receipt table { font-size: 12px; }
.receipt td { padding: 2px 0; border: 0; }
.receipt .rc-total { font-weight: 700; font-size: 14px; }

@media print {
  .sidebar, .topbar, .no-print { display: none !important; }
  body { background: #fff; }
  .content { padding: 0; }
  .card { border: 0; box-shadow: none; }
}

/* ---------- setup checklist ---------- */
.setup-steps { list-style: none; margin: 0; padding: 0; }
.setup-steps li { display: flex; gap: 11px; padding: 11px 0; border-bottom: 1px solid #eef1f4; }
.setup-steps li:last-child { border-bottom: 0; padding-bottom: 0; }
.setup-steps li > div { flex: 1; min-width: 0; }
.setup-steps .tick {
  flex: 0 0 24px; width: 24px; height: 24px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 12.5px; font-weight: 700; margin-top: 1px;
}
.setup-steps .done .tick { background: var(--brand-soft); color: var(--brand-dark); }
.setup-steps .todo .tick { background: var(--warn-soft); color: var(--warn); }
.setup-steps .done > div > b { color: var(--muted); font-weight: 600; }

/* =========================================================
   Responsive. Three breakpoints:
   <=1000px  tablet: POS stacks, 4-up tiles become 2-up
   <=760px   phone: off-canvas nav, single column, sticky sale bar
   <=400px   small phone: tighter type and spacing
   ========================================================= */

@media (max-width: 1000px) {
  .pos { grid-template-columns: 1fr; }
  .grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
  .sidebar { width: 190px; flex-basis: 190px; }
  .content { padding: 18px 16px 60px; }
}

@media (max-width: 760px) {
  /* --- off-canvas navigation --- */
  .sidebar {
    position: fixed; left: 0; top: 0; z-index: 60; width: 258px; flex-basis: 258px;
    transform: translateX(-100%); transition: transform .22s ease;
    box-shadow: 4px 0 24px rgba(0,0,0,.28);
  }
  .sidebar.open { transform: translateX(0); }
  .menu-toggle { display: block; }
  .backdrop { position: fixed; inset: 0; background: rgba(8,20,30,.45); z-index: 55; }
  .nav a { padding: 12px 13px; font-size: 15px; }   /* bigger tap targets */
  .nav-label { padding: 14px 13px 6px; }

  .topbar { padding: 10px 13px; gap: 10px; }
  .topbar h1 { font-size: 16px; }
  .who { font-size: 11.5px; }
  .content { padding: 13px 13px 76px; }

  .grid.cols-4, .grid.cols-3, .grid.cols-2 { grid-template-columns: 1fr; gap: 11px; }
  .card { margin-bottom: 13px; border-radius: 9px; }
  .card-head, .card-body { padding: 12px 13px; }
  .stat { padding: 12px 13px; }
  .stat .value { font-size: 21px; }

  /* Forms stack rather than squeezing side by side */
  .row { flex-direction: column; gap: 0; }
  .row > * { min-width: 0; width: 100%; }
  .field { margin-bottom: 14px; }

  /* 16px inputs stop iOS Safari zooming on focus */
  input[type=text], input[type=number], input[type=password], input[type=date],
  input[type=search], input[type=tel], select, textarea { font-size: 16px; padding: 11px 12px; }

  /* Comfortable thumb-sized buttons; full width when alone in a row */
  .btn { padding: 11px 16px; font-size: 15px; }
  .btn.sm { padding: 8px 12px; font-size: 13.5px; }
  .page-actions { gap: 7px; }
  .page-actions > form, .page-actions > .btn { flex: 1 1 auto; }
  .page-actions .btn { width: 100%; }

  /* Tables scroll sideways instead of breaking the layout */
  .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .table-wrap table { min-width: 560px; }
  th, td { padding: 9px 10px; }
  th { font-size: 10px; }
  td { font-size: 13.5px; }

  /* --- POS on a phone --- */
  .pos-results { max-height: 300px; }
  .pos-item { padding: 13px 12px; }          /* easier to tap */
  .cart-line .cl-inputs { flex-wrap: wrap; }
  .cart-line .cl-qty { width: 72px; }
  .cart-line .cl-price { width: 104px; }
  .cart-line .cl-inputs select { flex: 1 1 100px; min-width: 90px; }
  .seg span { padding: 10px 5px; font-size: 13.5px; }

  .tabs { overflow-x: auto; flex-wrap: nowrap; -webkit-overflow-scrolling: touch; }
  .tabs a { white-space: nowrap; padding: 9px 13px; }

  .chart-box { height: 230px; }
  .receipt { max-width: 100%; }
}

@media (max-width: 400px) {
  .content { padding: 11px 11px 76px; }
  .card-head, .card-body { padding: 11px; }
  .stat .value { font-size: 19px; }
  .topbar h1 { font-size: 15px; }
  .who b { font-size: 12px; }
  .table-wrap table { min-width: 480px; }
  .brand { font-size: 15px; }
}

/* Coarse pointers (finger, not mouse) get larger hit areas regardless of width */
@media (pointer: coarse) {
  .x-btn { font-size: 21px; padding: 6px 10px; }
  .nav a { padding: 12px 13px; }
  .pos-item { padding: 13px 12px; }
}

/* Respect users who ask for less motion */
@media (prefers-reduced-motion: reduce) {
  .sidebar { transition: none; }
}

/* ---------- live search ---------- */
.livesearch { position: relative; }
.livesearch input { padding-right: 34px; }
.livesearch .ls-spin {
  position: absolute; right: 11px; top: 50%; transform: translateY(-50%);
  width: 14px; height: 14px; border: 2px solid var(--border);
  border-top-color: var(--brand); border-radius: 50%;
  animation: ls-spin .6s linear infinite; display: none;
}
.livesearch.busy .ls-spin { display: block; }
@keyframes ls-spin { to { transform: translateY(-50%) rotate(360deg); } }
tr.ls-hidden { display: none; }
.ls-count { font-size: 12.5px; color: var(--muted); }
.ls-none td { padding: 30px 16px; text-align: center; color: var(--muted); }

/* ---------- pagination ---------- */
.pager {
  display: flex; align-items: center; gap: 7px; flex-wrap: wrap;
  padding: 12px 16px; border-top: 1px solid var(--border);
}
.pager .pager-info { font-size: 12.5px; color: var(--muted); }
.pager .spacer { flex: 1; }
.pager a, .pager span.page {
  padding: 6px 11px; border: 1px solid var(--border); border-radius: 7px;
  font-size: 13px; font-weight: 600; color: var(--text); background: #fff;
}
.pager a:hover { background: #f4f6f8; text-decoration: none; }
.pager span.page.current { background: var(--brand); border-color: var(--brand); color: #fff; }
.pager span.page.gap { border: 0; background: none; padding: 6px 2px; color: var(--muted); }
@media (max-width: 760px) {
  .pager { padding: 10px 12px; }
  .pager .pager-info { width: 100%; }
}

/* ---------- inline SVG icons ---------- */
.ico { display: inline-flex; align-items: center; justify-content: center; }
.ico svg, svg.ico { display: block; flex: 0 0 auto; }
.nav a .ico { width: 18px; height: 18px; }
.btn svg.ico { margin-right: 2px; vertical-align: -3px; }