:root {
  --fon: #f4f5f7;
  --karta: #ffffff;
  --matn: #16181d;
  --xira: #6b7280;
  --chiziq: #e3e5e9;
  --asosiy: #1f6feb;
  --asosiy-matn: #ffffff;
  --yashil: #15803d;
  --qizil: #c62828;
  --sariq: #d97706;
  --radius: 12px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fon: #0f1115;
    --karta: #1a1d23;
    --matn: #eceef2;
    --xira: #9aa1ad;
    --chiziq: #2b3038;
    --asosiy: #4c8dff;
    --yashil: #4ade80;
    --qizil: #f87171;
    --sariq: #fbbf24;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--fon);
  color: var(--matn);
  font: 16px/1.4 -apple-system, "Segoe UI", Roboto, sans-serif;
  padding-bottom: calc(72px + env(safe-area-inset-bottom));
}
#ekran { max-width: 680px; margin: 0 auto; padding: 16px; }
h3 { font-size: 15px; margin: 24px 0 8px; color: var(--xira); text-transform: uppercase; letter-spacing: .04em; }

/* Yuqori panel: nom va til almashtirgich */
#bosh { background: var(--karta); border-bottom: 1px solid var(--chiziq); }
.bosh-ichi {
  max-width: 680px; margin: 0 auto; padding: 8px 16px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.bosh-ichi b { font-size: 17px; }
.tillar { display: flex; border: 1px solid var(--chiziq); border-radius: 8px; overflow: hidden; }
.tillar button {
  font: inherit; font-size: 13px; font-weight: 600; padding: 6px 10px; cursor: pointer;
  border: 0; border-left: 1px solid var(--chiziq); background: none; color: var(--xira);
}
.tillar button:first-child { border-left: 0; }
.tillar button.faol { background: var(--asosiy); color: var(--asosiy-matn); }

/* Pastki menyu */
nav {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 10;
  display: flex; background: var(--karta); border-top: 1px solid var(--chiziq);
  padding-bottom: env(safe-area-inset-bottom);
}
nav a {
  flex: 1; display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 8px 0 10px; color: var(--xira); text-decoration: none; font-size: 12px;
}
nav a span { font-size: 22px; filter: grayscale(1); opacity: .7; }
nav a.faol { color: var(--asosiy); font-weight: 600; }
nav a.faol span { filter: none; opacity: 1; }

/* Kirish maydonlari va tugmalar */
input, select {
  width: 100%; font: inherit; color: inherit; background: var(--karta);
  border: 1px solid var(--chiziq); border-radius: 10px; padding: 12px;
}
input:focus, select:focus { outline: 2px solid var(--asosiy); outline-offset: -1px; }
.tugma {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font: inherit; font-weight: 500; padding: 12px 16px; border-radius: 10px; cursor: pointer;
  border: 1px solid var(--chiziq); background: var(--karta); color: var(--matn); text-decoration: none;
}
.tugma.asosiy { background: var(--asosiy); border-color: var(--asosiy); color: var(--asosiy-matn); }
.tugma.ogohlantirish { background: var(--sariq); border-color: var(--sariq); color: #fff; }
.tugma.xavfli { color: var(--qizil); border-color: var(--qizil); background: transparent; }
.tugma.katta { width: 100%; padding: 14px; font-size: 17px; margin-top: 8px; }
.tugma:disabled { opacity: .4; cursor: not-allowed; }
.ikon-tugma {
  flex: none; width: 48px; font-size: 22px; border: 1px solid var(--chiziq);
  background: var(--karta); border-radius: 10px; cursor: pointer; color: inherit;
}
.ikon-tugma.kichik { width: 32px; height: 32px; font-size: 14px; }

.qidiruv-qator { display: flex; gap: 8px; }
.qidiruv-qator input { flex: 1; min-width: 0; }
.tugmalar-qator { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
.tugmalar-qator .tugma { flex: 1; }
.tugmalar-panjara { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 16px 0; }
.chiplar { display: flex; gap: 8px; margin: 12px 0; flex-wrap: wrap; }
.chip {
  font: inherit; font-size: 14px; padding: 6px 14px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--chiziq); background: var(--karta); color: var(--matn);
}
.chip.faol { background: var(--matn); color: var(--fon); border-color: var(--matn); }

/* Ro'yxatlar */
.royxat { display: flex; flex-direction: column; gap: 6px; margin-top: 8px; }
.qator {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; width: 100%;
  padding: 12px 14px; background: var(--karta); border: 1px solid var(--chiziq); border-radius: var(--radius);
  font: inherit; color: inherit; text-align: left; cursor: pointer;
}
.qator.tanlangan { border-color: var(--asosiy); outline: 2px solid var(--asosiy); }
.qator-chap { min-width: 0; }
.qator-nom { font-weight: 600; }
.qoldiq { flex: none; font-weight: 700; font-size: 17px; text-align: right; }
.qoldiq.kam { color: var(--qizil); }
.kichik-royxat { max-height: 40vh; overflow: auto; }

.izoh { color: var(--xira); font-size: 13px; }
.markaz { text-align: center; }
.qizil { color: var(--qizil); }
.yashil { color: var(--yashil); }
.bosh { color: var(--xira); text-align: center; padding: 24px 8px; margin: 0; }

/* Sotish */
.natijalar { display: flex; flex-direction: column; gap: 4px; margin-top: 6px; }
.natija {
  display: flex; justify-content: space-between; gap: 8px; padding: 12px; font: inherit; color: inherit; text-align: left;
  background: var(--karta); border: 1px solid var(--asosiy); border-radius: 10px; cursor: pointer;
}
.savat-qator { background: var(--karta); border: 1px solid var(--chiziq); border-radius: var(--radius); padding: 12px; }
.savat-bosh { display: flex; justify-content: space-between; gap: 8px; }
.savat-tana { display: flex; align-items: center; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.miqdor { display: flex; align-items: center; gap: 4px; }
.miqdor button {
  width: 36px; height: 40px; font-size: 20px; border: 1px solid var(--chiziq); border-radius: 8px;
  background: var(--fon); color: inherit; cursor: pointer;
}
.miqdor input { width: 64px; text-align: center; padding: 8px 4px; }
.narx-kirit { width: 110px; padding: 8px; }
.xato-chegara { border-color: var(--qizil); }
.qator-summa { margin-left: auto; }
.jami-panel {
  position: sticky; bottom: calc(72px + env(safe-area-inset-bottom)); margin-top: 16px;
  background: var(--karta); border: 1px solid var(--chiziq); border-radius: var(--radius); padding: 12px;
  box-shadow: 0 -4px 16px rgba(0,0,0,.06);
}
.jami-qator { display: flex; justify-content: space-between; align-items: baseline; font-size: 18px; margin-bottom: 10px; }
.jami-qator b { font-size: 24px; }
.tolov-tugmalar { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.tolov-tugmalar .tugma { padding: 14px 4px; }
.tanlangan-mijoz { font-weight: 600; margin: 12px 0 4px; }

/* Kartalar va jadvallar */
.katta-karta, .karta { background: var(--karta); border: 1px solid var(--chiziq); border-radius: var(--radius); padding: 14px; }
.katta-karta { margin-bottom: 12px; }
.katta-son { font-size: 28px; font-weight: 700; text-align: center; margin: 4px 0; }
.katta-karta .katta-son { text-align: left; }
.kartalar { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.karta-son { font-size: 19px; font-weight: 700; margin: 2px 0; }
.malumot-jadval {
  display: grid; grid-template-columns: 1fr auto; gap: 8px 12px; margin-top: 12px;
  background: var(--karta); border: 1px solid var(--chiziq); border-radius: var(--radius); padding: 12px 14px;
}
.malumot-jadval > :nth-child(odd) { color: var(--xira); }
.malumot-jadval > :nth-child(even) { text-align: right; font-weight: 500; }
.tarix { background: var(--karta); border: 1px solid var(--chiziq); border-radius: var(--radius); overflow: hidden; }
.tarix-qator {
  display: flex; justify-content: space-between; align-items: center; gap: 12px; width: 100%;
  padding: 10px 14px; border: 0; border-bottom: 1px solid var(--chiziq);
  background: none; font: inherit; color: inherit; text-align: left;
}
.tarix-qator:last-child { border-bottom: 0; }
.tarix-qator b { flex: none; }
.bosiladigan { cursor: pointer; }

/* Oynalar */
.modal-fon {
  position: fixed; inset: 0; z-index: 20; background: rgba(0,0,0,.45);
  display: flex; align-items: flex-end; justify-content: center;
}
.modal {
  background: var(--fon); width: 100%; max-width: 560px; max-height: 92vh; overflow: auto;
  border-radius: 16px 16px 0 0; padding-bottom: env(safe-area-inset-bottom);
}
@media (min-width: 600px) {
  .modal-fon { align-items: center; }
  .modal { border-radius: 16px; }
}
.modal-bosh {
  position: sticky; top: 0; z-index: 1; display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 14px 16px; background: var(--fon); border-bottom: 1px solid var(--chiziq);
}
.modal-bosh h2 { margin: 0; font-size: 18px; }
.yopish-tugma { border: 0; background: none; font-size: 20px; color: var(--xira); cursor: pointer; padding: 4px 8px; }
.modal-tana { padding: 16px; }
.forma { display: flex; flex-direction: column; gap: 12px; }
.forma label, label.forma { display: flex; flex-direction: column; gap: 4px; font-size: 14px; color: var(--xira); }
.ikki-ustun { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
#skaner-oyna { width: 100%; border-radius: 12px; overflow: hidden; background: #000; }

/* Xabarlar */
#toastlar {
  position: fixed; left: 50%; top: 16px; transform: translateX(-50%); z-index: 30;
  display: flex; flex-direction: column; gap: 8px; width: min(92vw, 420px); pointer-events: none;
}
.toast {
  padding: 12px 16px; border-radius: 10px; color: #fff; background: var(--yashil);
  box-shadow: 0 6px 20px rgba(0,0,0,.2); font-weight: 500; animation: tushish .2s ease-out;
}
.toast.xato { background: var(--qizil); }
@keyframes tushish { from { transform: translateY(-10px); opacity: 0; } }