/* Kassa — surfplatta först: stora tryckytor, produktrutnät + nota sida vid sida.
   Färger via CSS-variabler: body.morkt växlar hela temat (ljust/mörkt läge).
   touch-action: manipulation stänger av dubbeltryck-zoom (iOS ignorerar
   user-scalable=no sedan iOS 10) — snabba tryck på produkterna ska aldrig zooma. */
* { margin: 0; padding: 0; box-sizing: border-box; touch-action: manipulation; }

:root {
  --bakgrund: #eef1f6;
  --yta: #fff;
  --yta2: #f7f9fb;
  --text: #1a2233;
  --text-svag: #5a6577;
  --kant: #dde2ea;
  --header: linear-gradient(135deg, #16203a, #1f3252);
  --header-text: #fff;
  --primar: #2f6feb;
  --gron: #1a7f37;
  --rod: #e5484d;
  --skugga: 0 1px 3px rgba(15, 23, 42, .08);
}
body.morkt {
  --bakgrund: #0d1117;
  --yta: #161c28;
  --yta2: #1d2534;
  --text: #e6e9f0;
  --text-svag: #8b94a7;
  --kant: #29334a;
  --header: linear-gradient(135deg, #0a0f1c, #16203a);
  --skugga: 0 1px 3px rgba(0, 0, 0, .4);
}

html, body { height: 100%; }
body {
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bakgrund); color: var(--text);
  display: flex; flex-direction: column;
  -webkit-user-select: none; user-select: none;
}
input, select, textarea { color: var(--text); background: var(--yta); }

header {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 12px 18px; background: var(--header); color: var(--header-text);
}
header .titel { font-size: 19px; font-weight: 800; letter-spacing: .01em; }
header .kassa-id { font-weight: 400; opacity: .55; font-size: 14px; }
header .hoger { display: flex; align-items: center; gap: 14px; }
header .klocka { font-size: 15px; font-variant-numeric: tabular-nums; opacity: .9; }
header .status { font-size: 13px; opacity: .9; display: flex; align-items: center; gap: 6px; }
.prick { width: 10px; height: 10px; border-radius: 50%; background: #888; display: inline-block; }
.prick.ok { background: #3dc26f; }
.prick.fel { background: #e5484d; }

main { flex: 1; display: flex; gap: 12px; padding: 12px; min-height: 0; }

.produkter {
  flex: 1; display: grid; gap: 10px; align-content: start; overflow-y: auto;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
}
.produkt {
  background: var(--yta); border: 1px solid var(--kant); border-radius: 14px;
  padding: 18px 12px; text-align: center; cursor: pointer;
  font-size: 16px; min-height: 92px; color: var(--text); box-shadow: var(--skugga);
  display: flex; flex-direction: column; justify-content: center; gap: 6px;
}
.produkt:active { background: var(--yta2); transform: scale(.98); }
.produkt .namn { font-weight: 650; }
.produkt .pris { color: var(--text-svag); font-size: 14px; }

.nota {
  width: 360px; background: var(--yta); border: 1px solid var(--kant); border-radius: 14px;
  display: flex; flex-direction: column; padding: 14px; min-height: 0; box-shadow: var(--skugga);
}
.nota h2 { font-size: 15px; margin-bottom: 8px; color: var(--text-svag); text-transform: uppercase; letter-spacing: .05em; }
.nota-rader { flex: 1; overflow-y: auto; min-height: 0; }
.nota-rad {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 0; border-bottom: 1px solid var(--kant); font-size: 15px;
}
.nota-rad .namn { flex: 1; }
.nota-rad .antal-knappar { display: flex; align-items: center; gap: 4px; }
.nota-rad button {
  width: 36px; height: 36px; border: 1px solid var(--kant); border-radius: 9px;
  background: var(--yta2); color: var(--text); font-size: 18px; cursor: pointer;
}
.nota-rad .radpris { width: 82px; text-align: right; font-variant-numeric: tabular-nums; }
.nota-tom { color: var(--text-svag); text-align: center; padding: 24px 0; }

.nota-summa { border-top: 2px solid var(--text); margin-top: 8px; padding-top: 8px; }
.nota-summa .rad { display: flex; justify-content: space-between; padding: 2px 0; }
.nota-summa .total { font-size: 26px; font-weight: 800; }
.nota-summa .moms { font-size: 13px; color: var(--text-svag); }

.betalsatt { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; margin-top: 12px; }
.betala {
  padding: 16px 0; border: 0; border-radius: 11px; background: var(--gron);
  color: #fff; font-size: 16px; font-weight: 700; cursor: pointer;
}
.betala.satt-kort { background: #2f6feb; }
.betala.satt-swish { background: #6f42c1; }
.betala.satt-kontant { background: #1a7f37; }
.betala.satt-presentkort { background: #b3540e; padding: 12px 0; font-size: 14px; }
.betala:disabled { background: var(--kant); color: var(--text-svag); cursor: default; }

.funktionsrad { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 8px; }
.funktion {
  padding: 12px 0; border: 1px solid var(--kant); border-radius: 11px;
  background: var(--yta2); color: var(--text); font-size: 14px; font-weight: 600; cursor: pointer;
}
.rensa {
  margin-top: 8px; padding: 10px 0; border: 1px solid var(--kant); border-radius: 11px;
  background: var(--yta); color: var(--text-svag); font-size: 14px; cursor: pointer;
}

.overlay {
  position: fixed; inset: 0; background: rgba(10, 14, 24, .6);
  display: flex; align-items: center; justify-content: center; padding: 16px;
}
.kvitto {
  background: #fff; color: #1a2233; border-radius: 14px; padding: 20px;
  max-width: 420px; width: 100%; max-height: 90vh; overflow-y: auto;
}
.kvitto pre {
  font-family: "SF Mono", ui-monospace, Menlo, Consolas, monospace;
  font-size: 13px; white-space: pre-wrap; -webkit-user-select: text; user-select: text;
}
.kvitto button {
  margin-top: 16px; width: 100%; padding: 14px 0; border: 0; border-radius: 11px;
  background: #1a2233; color: #fff; font-size: 16px; font-weight: 700; cursor: pointer;
}
.kvitto .ladda-ner { background: #fff; color: #1a2233; border: 1px solid #ccd3dd; margin-bottom: -6px; }

.mer-knapp {
  padding: 8px 16px; border: 1px solid rgba(255,255,255,.35);
  border-radius: 9px; background: transparent; color: #fff; font-size: 14px; cursor: pointer;
}
.mer-panel {
  background: var(--yta); color: var(--text); border-radius: 14px; padding: 18px 20px;
  max-width: 420px; width: 100%; max-height: 90vh; overflow-y: auto;
}
.mer-huvud { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.mer-huvud h2 { font-size: 18px; }
.mer-stang { border: 0; background: transparent; font-size: 20px; cursor: pointer; color: var(--text-svag); padding: 4px 8px; }
.mer-panel h3 { font-size: 13px; margin: 16px 0 6px; color: var(--text-svag); text-transform: uppercase; letter-spacing: .04em; }
.mer-rad { display: flex; gap: 8px; flex-wrap: wrap; }
.mer-rad input { flex: 1; min-width: 0; padding: 12px 10px; border: 1px solid var(--kant); border-radius: 10px; font-size: 16px; }
.mer-rad button, .mer-primar, .pk-satt {
  padding: 12px 14px; border: 1px solid var(--kant); border-radius: 10px;
  background: var(--yta2); color: var(--text); font-size: 15px; font-weight: 600; cursor: pointer; white-space: nowrap;
}
.mer-varning { background: #fdecec !important; border-color: #f0b4b6 !important; color: #b3282d !important; }
.mer-primar { width: 100%; margin-top: 10px; background: #16203a; color: #fff; border: 0; }
#merLas input, #kodOverlay input, #pkOverlay input {
  width: 100%; padding: 12px 10px; border: 1px solid var(--kant); border-radius: 10px; font-size: 16px;
}
.mer-info { color: var(--text-svag); font-size: 13px; margin-top: 10px; min-height: 18px; }
.mer-fel { color: #e5484d; font-size: 13px; margin-top: 8px; }
.mer-lasknapp {
  margin-top: 12px; width: 100%; padding: 10px 0; border: 1px solid var(--kant);
  border-radius: 10px; background: var(--yta); color: var(--text-svag); font-size: 13px; cursor: pointer;
}
.inst-vaxlar { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 12px; margin-top: 8px; }
.vaxel { font-size: 14px; display: flex; align-items: center; gap: 8px; padding: 4px 0; }

/* Märkningen KOPIA/RETUR ska vara minst dubbelt så stor som beloppstexten
   (5 kap. 5 §) — kvittotexten är 13px, märkningen 30px. */
.kvitto-markning {
  font-size: 30px; font-weight: 800; letter-spacing: .15em; text-align: center;
  margin-bottom: 10px; color: #1a2233;
}

.felruta {
  position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%);
  background: #e5484d; color: #fff; padding: 12px 20px; border-radius: 10px;
  font-size: 15px; max-width: 90vw;
}
.dold { display: none !important; }

@media (max-width: 700px) {
  main { flex-direction: column; }
  .nota { width: auto; }
  .produkter { max-height: 45vh; }
  header .klocka, header .status { display: none; }
}