:root {
  --bg: #0d0f13; --surface: #14171d; --surface-2: #1a1e26; --surface-3: #212631;
  --line: rgba(236,232,222,.08); --line-strong: rgba(236,232,222,.15);
  --text: #ece8de; --text-2: #cfcabd; --muted: #9a968c; --dim: #6e6c66;
  --accent: #e9a23b; --accent-ink: #1b1306; --accent-tint: rgba(233,162,59,.12); --accent-line: rgba(233,162,59,.35);
  --pos: #43c59e; --pos-tint: rgba(67,197,158,.12); --neg: #f0776d; --neg-tint: rgba(240,119,109,.12); --steel: #9db4d6;
  --r: 12px; --sans: 'Manrope', system-ui, -apple-system, 'Segoe UI', sans-serif;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f3ee; --surface: #ffffff; --surface-2: #f8f6f1; --surface-3: #efece4;
    --line: rgba(28,27,25,.08); --line-strong: rgba(28,27,25,.16);
    --text: #1c1b19; --text-2: #3a3833; --muted: #6b675f; --dim: #8e8a81;
    --accent: #c9821a; --accent-ink: #fff; --accent-tint: rgba(201,130,26,.1); --accent-line: rgba(201,130,26,.35);
    --pos: #1f8a66; --pos-tint: rgba(31,138,102,.1); --neg: #c4473d; --neg-tint: rgba(196,71,61,.1); --steel: #4a6a96;
    color-scheme: light;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 500 14.5px/1.5 var(--sans); }
[hidden] { display: none !important; }
h1 { font-size: 22px; margin: 0 0 4px; letter-spacing: -.3px; }
h2 { font-size: 16px; margin: 0; }
.muted { color: var(--muted); margin: 0; font-size: 13.5px; }
.fine { color: var(--dim); font-size: 11.5px; margin: 14px 0 0; text-align: center; }
.screen { min-height: 100vh; }
.center { display: grid; place-items: center; padding: 16px; }
.spinner { width: 28px; height: 28px; border-radius: 50%; border: 3px solid var(--line-strong); border-top-color: var(--accent); animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.brand { display: flex; align-items: center; gap: 10px; }
.brand b { display: block; font-size: 15px; }
.brand small { color: var(--muted); font-size: 12px; }
.logo { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: var(--accent); color: var(--accent-ink); font-weight: 800; font-size: 13px; }

.auth-card { width: 100%; max-width: 400px; background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 26px; box-shadow: 0 24px 60px -24px rgba(0,0,0,.6); }
.auth-card .brand { margin-bottom: 20px; }
.stack { display: flex; flex-direction: column; gap: 12px; }
label { display: flex; flex-direction: column; gap: 5px; font-size: 12.5px; font-weight: 700; color: var(--text-2); }
input, select, textarea {
  font: 600 14.5px var(--sans); color: var(--text); background: var(--surface-2);
  border: 1.5px solid var(--line-strong); border-radius: 10px; padding: 0 12px; height: 44px; width: 100%;
}
textarea { height: auto; padding: 10px 12px; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-tint); }
.code-input { text-align: center; font-size: 26px; letter-spacing: 10px; height: 58px; font-variant-numeric: tabular-nums; }
.qr { display: grid; place-items: center; background: #fff; border-radius: 12px; padding: 12px; width: 204px; margin: 4px auto; }
.qr svg { width: 180px; height: 180px; }
.secret { display: block; text-align: center; font-size: 12px; color: var(--muted); word-break: break-all; }
.msg { min-height: 20px; margin: 12px 0 0; color: var(--neg); font-size: 13px; font-weight: 600; }

.btn { font: 700 14px var(--sans); height: 44px; padding: 0 16px; border-radius: 10px; border: 1px solid var(--line-strong); background: var(--surface-2); color: var(--text); cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 6px; }
.btn:hover { border-color: var(--accent-line); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: transparent; }
.btn.ghost { background: transparent; }
.btn.small { height: 32px; padding: 0 10px; font-size: 12.5px; }
.btn.danger { color: var(--neg); }
.btn:disabled { opacity: .45; cursor: not-allowed; }

.top { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 16px; padding: 10px 18px; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
#nav { display: flex; gap: 4px; flex: 1; overflow-x: auto; scrollbar-width: none; }
#nav button { font: 700 13px var(--sans); color: var(--muted); background: none; border: 0; padding: 8px 12px; border-radius: 9px; cursor: pointer; white-space: nowrap; }
#nav button.on { color: var(--text); background: var(--surface-2); }
main { padding: 20px 18px 40px; max-width: 1280px; margin: 0 auto; }
.page-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 16px; }
.grid2 { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(320px, 1fr); gap: 16px; align-items: start; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; }
.stat { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 14px; }
.stat span { color: var(--muted); font-size: 12px; font-weight: 700; }
.stat b { display: block; font-size: 22px; margin-top: 4px; font-variant-numeric: tabular-nums; }
.pos { color: var(--pos); } .neg { color: var(--neg); }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th { text-align: left; color: var(--dim); font-size: 11px; text-transform: uppercase; letter-spacing: .6px; padding: 8px; border-bottom: 1px solid var(--line); }
td { padding: 9px 8px; border-bottom: 1px solid var(--line); vertical-align: middle; }
td.n, th.n { text-align: right; font-variant-numeric: tabular-nums; }
.tag { display: inline-block; font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 999px; background: var(--surface-3); color: var(--text-2); }
.tag.ok { background: var(--pos-tint); color: var(--pos); } .tag.bad { background: var(--neg-tint); color: var(--neg); }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

/* POS */
.search { height: 52px; font-size: 16px; }
.items { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 8px; margin-top: 12px; max-height: 60vh; overflow: auto; }
.tile { text-align: left; background: var(--surface-2); border: 1px solid var(--line); border-radius: 12px; padding: 11px; cursor: pointer; color: var(--text); font: inherit; }
.tile:hover { border-color: var(--accent-line); }
.tile b { display: block; font-size: 13px; }
.tile span { color: var(--accent); font-weight: 800; }
.cart-line { display: grid; grid-template-columns: 1fr 92px 70px 24px; gap: 8px; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--line); }
.cart-line input { height: 32px; text-align: center; padding: 0 4px; }
.cart-line .x { background: none; border: 0; color: var(--dim); cursor: pointer; font-size: 15px; }
.total { display: flex; justify-content: space-between; align-items: baseline; margin: 12px 0; padding: 12px 14px; border-radius: 12px; background: var(--surface-2); }
.total b { font-size: 30px; color: var(--pos); font-variant-numeric: tabular-nums; }
.pay3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }

.toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: var(--surface-3); color: var(--text); border: 1px solid var(--line-strong); padding: 10px 16px; border-radius: 10px; font-weight: 700; z-index: 99; box-shadow: 0 12px 30px -10px rgba(0,0,0,.5); }

@media (max-width: 900px) { .grid2 { grid-template-columns: 1fr; } }
@media (max-width: 600px) { .top { flex-wrap: wrap; } #nav { order: 3; width: 100%; } main { padding: 14px 12px 32px; } }

/* boards (tables / rooms) */
.board { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.slot { text-align: left; border-radius: 14px; padding: 14px; min-height: 96px; cursor: pointer; font: inherit; color: var(--text); border: 1.5px solid var(--line-strong); background: var(--surface); display: flex; flex-direction: column; gap: 4px; }
.slot b { font-size: 20px; }
.slot span { font-weight: 700; }
.slot small { color: var(--muted); font-size: 12px; }
.slot.free { border-color: rgba(67,197,158,.45); }
.slot.free span { color: var(--pos); }
.slot.busy, .slot.occupied { border-color: var(--accent-line); background: var(--accent-tint); }
.slot.busy span, .slot.occupied span { color: var(--accent); }
.slot.cleaning { border-color: rgba(157,180,214,.5); }
.slot.cleaning span { color: var(--steel); }
.slot.blocked { opacity: .55; }
.scan-wrap { position: fixed; inset: 0; background: rgba(0,0,0,.85); z-index: 100; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; }
.scan-wrap video { width: min(92vw, 520px); border-radius: 14px; border: 2px solid var(--accent); }
#print-area { display: none; }
@media print {
  body * { visibility: hidden !important; }
  #print-area, #print-area * { visibility: visible !important; }
  #print-area { display: block !important; position: absolute; left: 0; top: 0; width: 72mm; color: #000; font: 12px/1.35 system-ui, sans-serif; }
  #print-area h3 { margin: 0 0 4px; font-size: 15px; text-align: center; }
  #print-area table { width: 100%; border-collapse: collapse; }
  #print-area td { padding: 3px 0; border-bottom: 1px dashed #999; vertical-align: top; color: #000; }
  #print-area .r { text-align: right; }
  @page { margin: 4mm; }
}