:root{
  --ink:#1E2A25; --paper:#FAF7F0; --surface:#FFFFFF; --green:#2E6B4F; --green-deep:#1F4D38;
  --gold:#C8963E; --gold-soft:#F1E4C8; --muted:#6B7570; --line:#E4DFD3; --danger:#B23A3A; --danger-soft:#F6E1E1;
  --ok-soft:#E3EFE8; --warn-soft:#FBF1DC; --radius:10px; --font:"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{font-size:16px}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--paper);line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:var(--green-deep)}
h1,h2,h3{line-height:1.2;margin:0 0 .5rem}
h1{font-size:1.6rem;font-weight:600}
h2{font-size:1.2rem;font-weight:600}
h3{font-size:1rem;font-weight:600}
p{margin:0 0 1rem}
.muted{color:var(--muted)}
.small{font-size:.875rem}
.mono{font-family:ui-monospace,Menlo,Consolas,monospace}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px}

/* layout */
.topbar{background:var(--green-deep);color:#fff;padding:.6rem 1rem;display:flex;align-items:center;gap:1rem;flex-wrap:wrap}
.topbar .brand{font-weight:700;letter-spacing:.02em;color:#fff;text-decoration:none;font-size:1.05rem}
.topbar nav{display:flex;gap:.25rem;flex-wrap:wrap}
.topbar nav a{color:#E9F1EC;text-decoration:none;padding:.35rem .6rem;border-radius:6px;font-size:.92rem}
.topbar nav a:hover,.topbar nav a.active{background:rgba(255,255,255,.14);color:#fff}
.topbar .spacer{flex:1}
.topbar form{margin:0}
.wrap{max-width:1100px;margin:0 auto;padding:1.25rem 1rem 3rem}
.wrap.narrow{max-width:520px}
.grid{display:grid;gap:1rem}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.grid-kpi{grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1rem 1.1rem}
.card h2{margin-bottom:.75rem}
.kpi .label{color:var(--muted);font-size:.85rem}
.kpi .value{font-size:1.5rem;font-weight:600;margin-top:.15rem}
.kpi .sub{color:var(--muted);font-size:.8rem}

/* forms */
label{display:block;font-size:.9rem;color:var(--muted);margin-bottom:.25rem}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=date],select,textarea{
  width:100%;padding:.6rem .7rem;border:1px solid var(--line);border-radius:8px;font:inherit;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{border-color:var(--green)}
.field{margin-bottom:.9rem}
.row{display:flex;gap:.75rem;flex-wrap:wrap}
.row>.field{flex:1;min-width:160px}
.check{display:flex;gap:.5rem;align-items:flex-start;font-size:.92rem;color:var(--ink);margin:.5rem 0}
.check input{margin-top:.25rem;flex:none}
button,.btn{display:inline-block;padding:.6rem 1rem;border-radius:8px;border:1px solid var(--green-deep);background:var(--green);color:#fff;font:inherit;font-weight:600;cursor:pointer;text-decoration:none;line-height:1.2}
button:hover,.btn:hover{background:var(--green-deep)}
.btn.secondary,button.secondary{background:#fff;color:var(--green-deep);border-color:var(--line)}
.btn.secondary:hover,button.secondary:hover{background:var(--ok-soft)}
.btn.danger,button.danger{background:#fff;color:var(--danger);border-color:var(--danger)}
.btn.danger:hover,button.danger:hover{background:var(--danger-soft)}
.btn.big,button.big{font-size:1.15rem;padding:.9rem 1.4rem;width:100%}
.btn.small,button.small{padding:.35rem .6rem;font-size:.85rem;font-weight:500}
.actions{display:flex;gap:.5rem;flex-wrap:wrap;align-items:center}

/* feedback */
.flash{padding:.7rem .9rem;border-radius:8px;margin-bottom:1rem;border:1px solid transparent}
.flash.ok{background:var(--ok-soft);border-color:#BFD8CA}
.flash.err{background:var(--danger-soft);border-color:#E7B9B9;color:#7A2323}
.flash.warn{background:var(--warn-soft);border-color:#EAD3A5}
.badge{display:inline-block;padding:.1rem .5rem;border-radius:999px;font-size:.78rem;font-weight:600;border:1px solid var(--line);background:#fff;white-space:nowrap}
.badge.SOLD{background:var(--ok-soft);border-color:#BFD8CA;color:var(--green-deep)}
.badge.BARTER{background:var(--gold-soft);border-color:#E3CC9B;color:#6E4E12}
.badge.REDEEMED{background:#E8EAF2;border-color:#C9CEDF;color:#2E3A63}
.badge.EXPIRED,.badge.CANCELLED{background:var(--danger-soft);border-color:#E7B9B9;color:#7A2323}
.badge.CREATED{background:#F1F1EE;color:var(--muted)}

/* tables */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:.92rem;background:#fff}
th,td{text-align:left;padding:.55rem .6rem;border-bottom:1px solid var(--line);vertical-align:top}
th{font-weight:600;color:var(--muted);font-size:.82rem;background:#FBFAF6}
tr.total td{font-weight:600;border-top:2px solid var(--green)}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}

/* realizacja */
.redeem-hero{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:1.4rem}
.redeem-hero input.code{font-size:1.4rem;letter-spacing:.06em;text-transform:uppercase;font-family:ui-monospace,Menlo,monospace;padding:.85rem}
.result{border-radius:14px;padding:1.2rem 1.3rem;border:2px solid var(--green);background:#fff;margin-top:1rem}
.result.bad{border-color:var(--danger);background:#FFF9F9}
.result .amount{font-size:2.6rem;font-weight:700;line-height:1}
.result dl{display:grid;grid-template-columns:auto 1fr;gap:.25rem .9rem;margin:.9rem 0 0;font-size:.92rem}
.result dt{color:var(--muted)}
.result dd{margin:0}
.done{border-radius:14px;padding:1.4rem;background:var(--green);color:#fff;margin-top:1rem}
.done .amount{font-size:2.4rem;font-weight:700}
#scanner{display:none;margin-top:.75rem}
#scanner video{width:100%;max-height:320px;border-radius:10px;background:#000}

.codes{columns:2;column-gap:2rem;font-family:ui-monospace,Menlo,monospace;font-size:1.05rem;list-style:none;padding:0}
.codes li{padding:.25rem 0;break-inside:avoid}
.qr{display:block;margin:0 auto 1rem;border:1px solid var(--line);border-radius:8px;background:#fff;padding:.25rem;max-width:220px}
.pager{display:flex;gap:.5rem;margin-top:1rem}
details summary{cursor:pointer;color:var(--green-deep);font-weight:600}
.tabs{display:flex;gap:.5rem;margin-bottom:1rem;flex-wrap:wrap}
.tabs label{display:inline-flex;align-items:center;gap:.4rem;border:1px solid var(--line);padding:.45rem .8rem;border-radius:999px;background:#fff;color:var(--ink);cursor:pointer;margin:0}
.tabs input{margin:0}
.hidden{display:none}
footer.app{color:var(--muted);font-size:.8rem;text-align:center;padding:2rem 1rem}
@media (max-width:640px){h1{font-size:1.35rem}.wrap{padding:1rem .75rem 3rem}.codes{columns:1}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}