/* ════════════════════════════════════════════════════════════════════════
   SuperShop CRM — design system
   Institutional / utilitarian. Warm paper, forest accent, charcoal ink.
   Serif headers + monospace data = distinctive but disciplined.
   100% offline-safe fonts (no CDN) — the POS must work when the LAN drops.
   ════════════════════════════════════════════════════════════════════════ */

:root {
  --paper:        #f7f5ef;
  --paper-raised: #fffdf8;
  --card:         #ffffff;

  --ink:        #1c1b17;
  --ink-soft:   #57534a;
  --ink-faint:  #8d877a;

  --line:        #e4dfd3;
  --line-strong: #d2cbbb;

  --accent:      #1f6b45;
  --accent-deep: #15502f;
  --accent-soft: #e7f0ea;

  --danger:      #9b2c2c;
  --danger-soft: #f7e8e4;
  --warn:        #8a5a16;
  --warn-soft:   #f6ecd9;
  --cash:        #1f6b45;
  --dues:        #9b2c2c;

  --radius:   10px;
  --radius-sm: 7px;
  --shadow:   0 1px 2px rgba(28,27,23,.05), 0 8px 24px -16px rgba(28,27,23,.35);
  --shadow-lg:0 4px 12px rgba(28,27,23,.08), 0 24px 48px -24px rgba(28,27,23,.4);

  --serif: Georgia, "Times New Roman", "Iowan Old Style", serif;
  --sans:  ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono:  ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* faint paper grain via layered gradients */
body {
  background-image:
    radial-gradient(circle at 18% 12%, rgba(31,107,69,.035), transparent 42%),
    radial-gradient(circle at 88% 0%, rgba(155,44,44,.025), transparent 38%);
  background-attachment: fixed;
  min-height: 100vh;
}

h1, h2, h3 { font-family: var(--serif); font-weight: 600; letter-spacing: -.01em; color: var(--ink); }
h1 { font-size: 1.7rem; margin: 0; }
h2 { font-size: 1.25rem; margin: 0 0 .25rem; }
h3 { font-size: 1.02rem; margin: 0 0 .5rem; }

a { color: var(--accent-deep); }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.muted { color: var(--ink-soft); }
.faint { color: var(--ink-faint); }
.tiny { font-size: .78rem; }
.right { text-align: right; }
.nowrap { white-space: nowrap; }

/* ── top bar ─────────────────────────────────────────────────────────────── */
.topbar {
  display: flex; align-items: center; gap: 1rem;
  padding: .7rem 1.25rem;
  background: var(--paper-raised);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 40;
}
.brand { display: flex; align-items: baseline; gap: .55rem; }
.brand .mark {
  font-family: var(--serif); font-weight: 700; font-size: 1.2rem; color: var(--accent-deep);
  letter-spacing: -.02em;
}
.brand .mark .dot { color: var(--danger); }
.brand .role-tag {
  font-family: var(--mono); font-size: .66rem; text-transform: uppercase; letter-spacing: .12em;
  color: var(--ink-faint); border: 1px solid var(--line-strong); border-radius: 999px;
  padding: .12rem .5rem;
}
.topbar .spacer { flex: 1; }
.topbar .who { font-size: .85rem; color: var(--ink-soft); text-align: right; line-height: 1.25; }
.topbar .who b { color: var(--ink); font-weight: 600; }

/* ── layout ──────────────────────────────────────────────────────────────── */
.wrap { max-width: 1180px; margin: 0 auto; padding: 1.4rem 1.25rem 4rem; }
.wrap-narrow { max-width: 560px; margin: 0 auto; padding: 1.4rem 1.25rem 4rem; }
.grid { display: grid; gap: 1rem; }
.cols-2 { grid-template-columns: 1fr 1fr; }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 860px) { .cols-2, .cols-3 { grid-template-columns: 1fr; } }

/* ── card ────────────────────────────────────────────────────────────────── */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.1rem 1.15rem;
}
.card.flush { padding: 0; overflow: hidden; }
.card-head {
  display: flex; align-items: center; gap: .6rem; justify-content: space-between;
  padding: .85rem 1.1rem; border-bottom: 1px solid var(--line); background: var(--paper-raised);
}
.card-head h3 { margin: 0; }
.card-body { padding: 1.05rem 1.1rem; }

/* ── stat tiles ──────────────────────────────────────────────────────────── */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: .8rem; }
.stat {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: .85rem .95rem; box-shadow: var(--shadow);
}
.stat .k { font-size: .72rem; text-transform: uppercase; letter-spacing: .09em; color: var(--ink-faint); }
.stat .v { font-family: var(--mono); font-size: 1.45rem; font-weight: 600; margin-top: .25rem; font-variant-numeric: tabular-nums; }
.stat.accent { border-left: 3px solid var(--accent); }
.stat.danger { border-left: 3px solid var(--danger); }
.stat.danger .v { color: var(--danger); }
.stat.warn   { border-left: 3px solid var(--warn); }

/* ── buttons ─────────────────────────────────────────────────────────────── */
.btn {
  appearance: none; cursor: pointer; font: inherit; font-weight: 600;
  border: 1px solid var(--line-strong); background: var(--paper-raised); color: var(--ink);
  border-radius: var(--radius-sm); padding: .55rem .95rem; line-height: 1;
  transition: transform .04s ease, background .15s ease, border-color .15s ease, box-shadow .15s;
}
/* an <a> carrying .btn (nav links to another page) must look like the buttons beside it */
a.btn { text-decoration: none; display: inline-flex; align-items: center; justify-content: center; }
.btn:hover { border-color: var(--ink-faint); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent-deep); color: #fff; }
.btn-primary:hover { background: var(--accent-deep); }
.btn-danger { background: var(--danger); border-color: #7c2222; color: #fff; }
.btn-danger:hover { background: #7c2222; }
.btn-ghost { background: transparent; border-color: transparent; color: var(--accent-deep); padding: .4rem .5rem; }
.btn-ghost:hover { background: var(--accent-soft); }
.btn-sm { padding: .35rem .65rem; font-size: .82rem; }
.btn-block { width: 100%; }
.btn-lg { padding: .8rem 1.1rem; font-size: 1.05rem; }

/* ── forms ───────────────────────────────────────────────────────────────── */
label.field { display: block; margin-bottom: .8rem; }
label.field > span { display: block; font-size: .78rem; color: var(--ink-soft); margin-bottom: .28rem; font-weight: 600; }
input, select {
  width: 100%; font: inherit; padding: .58rem .7rem; color: var(--ink);
  background: #fff; border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
input.mono { font-family: var(--mono); letter-spacing: .04em; }
input.big { font-size: 1.3rem; padding: .7rem .8rem; text-align: center; letter-spacing: .25em; }
.row { display: flex; gap: .6rem; }
.row > * { flex: 1; }
.row .grow0 { flex: 0 0 auto; }

/* ── tables ──────────────────────────────────────────────────────────────── */
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
thead th {
  text-align: left; font-size: .7rem; text-transform: uppercase; letter-spacing: .08em;
  color: var(--ink-faint); font-weight: 700; padding: .55rem .7rem; border-bottom: 1px solid var(--line-strong);
  background: var(--paper-raised); position: sticky; top: 0;
}
tbody td { padding: .55rem .7rem; border-bottom: 1px solid var(--line); vertical-align: middle; }
tbody tr:hover { background: #faf8f2; }
tbody tr:last-child td { border-bottom: none; }
td.num, th.num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; }
.table-scroll { max-height: 460px; overflow: auto; }

/* ── badges ──────────────────────────────────────────────────────────────── */
.badge {
  display: inline-block; font-size: .7rem; font-weight: 700; padding: .15rem .5rem;
  border-radius: 999px; letter-spacing: .03em; text-transform: uppercase;
}
.badge.cash { background: var(--accent-soft); color: var(--accent-deep); }
.badge.dues { background: var(--danger-soft); color: var(--danger); }
.badge.low  { background: var(--warn-soft); color: var(--warn); }
.badge.ok   { background: var(--accent-soft); color: var(--accent-deep); }
.badge.charge  { background: var(--danger-soft); color: var(--danger); }
.badge.payment { background: var(--accent-soft); color: var(--accent-deep); }

/* ── tabs ────────────────────────────────────────────────────────────────── */
.tabs { display: flex; gap: .3rem; border-bottom: 1px solid var(--line-strong); margin-bottom: 1.1rem; flex-wrap: wrap; }
.tab {
  appearance: none; cursor: pointer; font: inherit; font-weight: 600; color: var(--ink-soft);
  background: transparent; border: none; border-bottom: 2px solid transparent;
  padding: .6rem .85rem; margin-bottom: -1px;
}
.tab:hover { color: var(--ink); }
.tab.active { color: var(--accent-deep); border-bottom-color: var(--accent); }
.panel { display: none; }
.panel.active { display: block; }

/* ── login screen ────────────────────────────────────────────────────────── */
.auth-shell { min-height: 100vh; display: grid; place-items: center; padding: 1.5rem; }
.auth-card {
  width: 100%; max-width: 410px; background: var(--card); border: 1px solid var(--line);
  border-radius: 14px; box-shadow: var(--shadow-lg); overflow: hidden;
}
.auth-head {
  padding: 1.6rem 1.6rem 1.1rem; text-align: center;
  border-bottom: 1px solid var(--line); background: var(--paper-raised);
}
.auth-head .mark { font-family: var(--serif); font-size: 1.7rem; font-weight: 700; color: var(--accent-deep); }
.auth-head .mark .dot { color: var(--danger); }
.auth-head .sub { color: var(--ink-soft); font-size: .85rem; margin-top: .15rem; }
.auth-body { padding: 1.4rem 1.6rem 1.6rem; }
.auth-foot { text-align: center; font-size: .75rem; color: var(--ink-faint); padding: 0 1.6rem 1.3rem; }
.switcher { text-align: center; margin-top: .9rem; font-size: .86rem; }
.switcher button { background: none; border: none; color: var(--accent-deep); font: inherit; font-weight: 600; cursor: pointer; padding: 0; }

/* ── toast ───────────────────────────────────────────────────────────────── */
.toasts { position: fixed; bottom: 1.1rem; right: 1.1rem; z-index: 100; display: flex; flex-direction: column; gap: .5rem; }
.toast {
  background: var(--ink); color: #fff; padding: .7rem 1rem; border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg); font-size: .88rem; max-width: 340px;
  animation: toastin .18s ease; border-left: 3px solid var(--accent);
}
.toast.err { border-left-color: var(--danger); }
.toast.warn { border-left-color: var(--warn); }
@keyframes toastin { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ── connection pill ─────────────────────────────────────────────────────── */
.conn {
  display: inline-flex; align-items: center; gap: .4rem; font-size: .76rem; font-weight: 600;
  padding: .22rem .6rem; border-radius: 999px; border: 1px solid var(--line-strong);
}
.conn .led { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.conn.offline { background: var(--warn-soft); border-color: var(--warn); color: var(--warn); }
.conn.offline .led { background: var(--warn); }
.conn .q { font-family: var(--mono); }

/* ── receipt ─────────────────────────────────────────────────────────────── */
.receipt {
  font-family: var(--mono); background: #fff; border: 1px dashed var(--line-strong);
  border-radius: var(--radius-sm); padding: 1rem 1.1rem; font-size: .82rem; color: var(--ink);
}
.receipt .r-title { font-family: var(--serif); font-size: 1.1rem; text-align: center; margin-bottom: .1rem; }
.receipt .r-sub { text-align: center; color: var(--ink-faint); font-size: .72rem; margin-bottom: .7rem; }
.receipt hr { border: none; border-top: 1px dashed var(--line-strong); margin: .55rem 0; }
.receipt .r-line { display: flex; justify-content: space-between; gap: 1rem; }
.receipt .r-total { font-weight: 700; font-size: 1rem; }

/* ── cart list ───────────────────────────────────────────────────────────── */
.cart-row { display: grid; grid-template-columns: 1fr auto auto auto; gap: .6rem; align-items: center;
  padding: .5rem 0; border-bottom: 1px solid var(--line); }
.cart-row:last-child { border-bottom: none; }
.cart-row .qtybox { display: flex; align-items: center; gap: .25rem; }
.cart-row .qtybox button { width: 26px; height: 26px; padding: 0; }
.cart-row .qtybox span { font-family: var(--mono); min-width: 22px; text-align: center; }

.empty { text-align: center; color: var(--ink-faint); padding: 1.6rem 1rem; font-size: .9rem; }

.hidden { display: none !important; }
.scan-hint { font-size: .76rem; color: var(--ink-faint); display: flex; align-items: center; gap: .35rem; margin-top: .35rem; }
.kbd { font-family: var(--mono); font-size: .72rem; border: 1px solid var(--line-strong); border-bottom-width: 2px;
  border-radius: 4px; padding: .05rem .35rem; background: var(--paper-raised); }

@media print {
  body * { visibility: hidden; }
  .print-area, .print-area * { visibility: visible; }
  .print-area { position: absolute; inset: 0; margin: 0; border: none; box-shadow: none; }
  .no-print { display: none !important; }
}