:root{
  --bg:#F2F2F7; --surface:#FFFFFF; --text:#1D1D1F; --muted:#6E6E73; --line:#E3E3E8;
  --accent:#0A66FF; --accent-soft:#E8F0FF; --ok:#1F9D55; --warn:#C77700; --danger:#D93025;
  --font:-apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#000000; --surface:#1C1C1E; --text:#F5F5F7; --muted:#98989F; --line:#2C2C2E;
    --accent:#3B8BFF; --accent-soft:#132A4D; --ok:#30C06B; --warn:#FFB340; --danger:#FF5F52;
  }
}
:root[data-theme="dark"]{
  --bg:#000000; --surface:#1C1C1E; --text:#F5F5F7; --muted:#98989F; --line:#2C2C2E;
  --accent:#3B8BFF; --accent-soft:#132A4D; --ok:#30C06B; --warn:#FFB340; --danger:#FF5F52;
}
*,*::before,*::after{box-sizing:inherit}
[hidden]{display:none!important}
html,body{height:100%;margin:0}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:16px;
  -webkit-tap-highlight-color:transparent;touch-action:manipulation;overflow:hidden;-webkit-user-select:none;user-select:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;touch-action:manipulation}
button:focus-visible,input:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
input{font:inherit;color:var(--text);-webkit-user-select:text;user-select:text}
.num{font-variant-numeric:tabular-nums}
.muted{color:var(--muted)}

/* ---------- OS shell ---------- */
#os{height:100%;display:grid;grid-template-rows:auto 1fr}
.status{display:flex;justify-content:space-between;padding:8px 22px;font-size:14px;font-weight:600;color:var(--muted)}
#home{overflow-y:auto;-webkit-overflow-scrolling:touch;padding:12px 32px 40px}
.widgets{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;max-width:920px;margin:8px auto 36px}
.widget{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:16px 18px;text-align:left}
.widget p{margin:0 0 6px;color:var(--muted);font-size:14px}
.widget div{font-size:28px;font-weight:700}
.widget small{display:block;margin-top:4px;color:var(--muted);font-size:14px}
.icons{display:grid;grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:28px 12px;max-width:920px;margin:0 auto}
.appicon{display:flex;flex-direction:column;align-items:center;gap:8px;font-size:14px;font-weight:500}
.appicon i{position:relative;width:76px;height:76px;border-radius:19px;background:var(--c);display:grid;place-items:center}
.appicon:active i{transform:scale(.94)}
.appicon svg{width:36px;height:36px;stroke:#fff;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.badge{position:absolute;top:-6px;right:-6px;background:var(--danger);color:#fff;min-width:24px;height:24px;border-radius:12px;font-size:13px;font-style:normal;font-weight:700;display:grid;place-items:center;padding:0 6px}

#appwin{display:grid;grid-template-rows:auto 1fr;min-height:0}
.appbar{display:flex;align-items:center;gap:12px;padding:8px 16px;background:var(--surface);border-bottom:1px solid var(--line)}
.back{color:var(--accent);font-weight:600;min-height:44px;padding:0 6px;white-space:nowrap}
.appbar h1{font-size:18px;margin:0;flex:1;min-width:0;text-align:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.back-short{display:none}
.acts{display:flex;gap:8px;min-width:110px;justify-content:flex-end}
.abtn{min-height:40px;padding:0 14px;border-radius:10px;background:var(--accent-soft);color:var(--accent);font-weight:600;white-space:nowrap}
#appBody{min-height:0;display:grid}

/* ---------- common ---------- */
.page{overflow-y:auto;-webkit-overflow-scrolling:touch;padding:20px 24px 40px;min-height:0}
.page-in{max-width:960px;margin:0 auto}
.page h2{font-size:22px;margin:0 0 14px}
.page h3.sec{font-size:15px;color:var(--muted);font-weight:600;margin:24px 0 8px 4px}
.chips{display:flex;gap:8px;overflow-x:auto;-webkit-overflow-scrolling:touch;margin-bottom:12px}
.chips button{white-space:nowrap;padding:10px 16px;border-radius:999px;font-weight:600;background:var(--surface);border:1px solid var(--line);min-height:44px}
.chips button[aria-pressed="true"]{background:var(--text);color:var(--surface);border-color:var(--text)}
.searchbox{width:100%;padding:12px 14px;border-radius:10px;border:1px solid var(--line);background:var(--surface);min-height:48px;margin-bottom:12px}
.toolbar{display:flex;gap:10px;align-items:center;margin-bottom:14px;flex-wrap:wrap}
.toolbar .searchbox{flex:1;margin:0;min-width:200px}
.list{background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.li{display:flex;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid var(--line);min-height:62px;width:100%;text-align:left}
.li:last-child{border-bottom:0}
button.li:active{background:var(--bg)}
.li .grow{flex:1;min-width:0}
.li .grow b{overflow-wrap:anywhere}
.li .sub{font-size:14px;color:var(--muted);margin-top:2px}
.li .amt{font-weight:600;text-align:right;white-space:nowrap}
.empty{padding:28px 16px;color:var(--muted);text-align:center}
.tag{font-size:13px;font-weight:600;padding:4px 8px;border-radius:6px;background:var(--bg);white-space:nowrap}
.tag.red{background:rgba(217,48,37,.12);color:var(--danger)}
.tag.amber{background:rgba(199,119,0,.14);color:var(--warn)}
.stk{font-size:13px;font-weight:600;color:var(--muted)}
.stk.low{color:var(--warn)} .stk.out{color:var(--danger)}
.stkbig{font-size:22px;font-weight:700;min-width:56px;text-align:right}
.stkbig.low{color:var(--warn)} .stkbig.out{color:var(--danger)}
.plus{color:var(--ok);font-weight:700} .minus{color:var(--danger);font-weight:700}
.btn{min-height:48px;padding:0 18px;border-radius:10px;font-weight:600;background:var(--text);color:var(--surface)}
.btn.ghost{background:var(--bg);color:var(--text)}
.btn.primary{background:var(--accent);color:#fff}
.btn.danger{background:var(--danger);color:#fff}
.btn.dtext{background:var(--bg);color:var(--danger)}
.btn.sm{min-height:46px;padding:0 12px}
.btn:disabled{opacity:.35}

/* ---------- sale ---------- */
.salewrap{display:grid;grid-template-columns:1fr minmax(340px,36%);min-height:0}
.catalog{display:flex;flex-direction:column;min-height:0}
.catalog .chips{padding:14px 16px 0;margin:0}
.catalog .search{padding:12px 16px 4px}
.catalog .search input{width:100%;padding:12px 14px;border-radius:10px;border:1px solid var(--line);background:var(--surface);min-height:48px}
.grid{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:10px 16px 24px;display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px;align-content:start}
.tile{text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px;min-height:100px;display:flex;flex-direction:column;gap:2px}
.tile:active{background:var(--accent-soft);border-color:var(--accent)}
.tile b{font-weight:600;line-height:1.25}
.tile .meta{margin-top:auto;padding-top:8px;font-size:14px;color:var(--muted)}
.tile.set{border-style:dashed}
.cart{display:flex;flex-direction:column;background:var(--surface);border-left:1px solid var(--line);min-height:0}
.cart-body{display:flex;flex-direction:column;flex:1;min-height:0}
.cart-bar{display:none}
.cart-scrim{display:none}
.cart-head{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid var(--line)}
.cust-btn{flex:1;text-align:left;padding:10px 12px;border-radius:10px;background:var(--bg);min-height:46px;color:var(--muted)}
.cust-btn.set{color:var(--text);font-weight:600}
.clear-btn{min-height:46px;padding:0 12px;border-radius:10px;color:var(--danger);font-weight:600}
.lines{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;min-height:0}
.line{display:grid;grid-template-columns:1fr auto;gap:4px 12px;padding:12px 16px;border-bottom:1px solid var(--line)}
.line .nm{font-weight:600}
.line .vr{font-size:14px;color:var(--muted)}
.line .pr{text-align:right;font-weight:600}
.line .pr s{display:block;font-weight:400;font-size:13px;color:var(--muted)}
.line .ctrl{grid-column:1/-1;display:flex;align-items:center;gap:8px}
.qty{display:flex;align-items:center;background:var(--bg);border-radius:10px}
.qty button{width:44px;height:40px;font-size:20px;font-weight:600}
.qty span{min-width:28px;text-align:center;font-weight:600}
.chip{padding:8px 12px;border-radius:8px;font-size:14px;font-weight:600;color:var(--muted);background:var(--bg);min-height:40px}
.chip.on{background:var(--ok);color:#fff}
.chip.del{margin-left:auto;color:var(--danger);background:none}
.cart-empty{padding:40px 24px;color:var(--muted);text-align:center}
.cart-empty strong{display:block;font-size:18px;color:var(--text);margin-bottom:6px}
.totals{padding:12px 16px 16px;border-top:1px solid var(--line)}
.row{display:flex;justify-content:space-between;align-items:center;padding:3px 0;color:var(--muted)}
.row button{color:var(--accent);font-weight:600;padding:6px 0;min-height:36px}
.row.grand{color:var(--text);padding-top:8px;font-weight:700}
.row.grand span:last-child{font-size:28px}
.pay{margin-top:12px;width:100%;min-height:60px;border-radius:12px;background:var(--accent);color:#fff;font-size:19px;font-weight:700}
.pay:disabled{opacity:.35}

/* ---------- reports ---------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:10px;margin-bottom:8px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px}
.stat p{margin:0 0 6px;color:var(--muted);font-size:14px}
.stat div{font-size:22px;font-weight:700}
.stat.main{grid-column:1/-1}
.stat.main div{font-size:34px}
.chart{display:flex;align-items:flex-end;gap:4px;height:180px;padding:14px;background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow-x:auto}
.chart .b{flex:1;min-width:16px;height:100%;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:4px}
.chart .b i{display:block;width:100%;background:var(--accent);border-radius:4px 4px 0 0;min-height:2px}
.chart .b span{font-size:11px;color:var(--muted)}
.hbar{display:grid;grid-template-columns:140px 1fr 110px;gap:10px;align-items:center;padding:10px 16px;border-bottom:1px solid var(--line)}
.hbar:last-child{border-bottom:0}
.hbar .track{height:10px;background:var(--bg);border-radius:5px;overflow:hidden}
.hbar .track i{display:block;height:100%;background:var(--accent);border-radius:5px}
.hbar span:last-child{text-align:right;font-weight:600}

/* ---------- sheets ---------- */
.scrim{position:fixed;top:0;right:0;bottom:0;left:0;background:rgba(0,0,0,.4);display:none;align-items:center;justify-content:center;padding:24px;z-index:10}
.scrim.on{display:flex}
.sheet{background:var(--surface);border-radius:16px;width:min(560px,100%);max-height:calc(100% - 20px);overflow-y:auto;-webkit-overflow-scrolling:touch;padding:22px;animation:rise .15s ease-out}
.sheet.wide{width:min(760px,100%)}
@media (prefers-reduced-motion: reduce){.sheet{animation:none}}
@keyframes rise{from{transform:translateY(12px);opacity:0}to{transform:none;opacity:1}}
.sheet h3{font-size:21px;margin:0 0 4px}
.sheet h4{font-size:15px;margin:18px 0 8px;color:var(--muted)}
.sheet .lead{color:var(--muted);margin:0 0 16px}
.sheet-foot{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}
.sheet-foot .btn{flex:1}
.variants{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px}
.variant{border:1px solid var(--line);border-radius:12px;padding:16px;text-align:left;min-height:88px}
.variant:active{background:var(--accent-soft);border-color:var(--accent)}
.variant b{display:block;font-size:18px;margin-bottom:4px}
.seg{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:14px}
.seg.three{grid-template-columns:repeat(3,1fr)}
.seg button{min-height:56px;border-radius:10px;background:var(--bg);font-weight:600}
.seg button[aria-pressed="true"]{background:var(--accent);color:#fff}
.seg.two{grid-template-columns:1fr 1fr}
.bigsum{display:flex;justify-content:space-between;align-items:baseline;padding:14px 16px;border-radius:12px;background:var(--bg);margin-bottom:12px}
.bigsum span:last-child{font-size:28px;font-weight:700}
.plist{border:1px solid var(--line);border-radius:12px;margin-bottom:12px}
.prow{display:flex;align-items:center;gap:12px;padding:8px 8px 8px 14px;border-bottom:1px solid var(--line)}
.prow:last-child{border-bottom:0}
.prow span:first-child{flex:1}
.prow .chip.del{margin-left:0}
.remrow{display:flex;justify-content:space-between;font-size:18px;margin:4px 2px 12px}
.done-msg{padding:16px;border-radius:12px;background:rgba(31,157,85,.12);color:var(--ok);font-weight:600;font-size:17px}
.field{display:block;margin-bottom:12px}
.field span{display:block;font-size:14px;color:var(--muted);margin-bottom:6px}
.field input{width:100%;min-height:48px;padding:0 12px;border-radius:10px;border:1px solid var(--line);background:var(--surface);font-size:17px}
.field .hint{margin-top:6px}
.field .chip{margin-top:6px}
.checkline{display:flex;align-items:center;min-height:48px;font-weight:600;margin:8px 0}
.checkline input{width:22px;height:22px;margin-right:10px}
.syncbar{display:flex;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin-bottom:14px}
.syncbar p{margin:0;color:var(--muted);font-size:14px;flex:1;line-height:1.4}
.syncbar .btn{margin-left:12px;white-space:nowrap}
.inrow{display:flex;gap:6px}
.inrow input{flex:1;min-width:0}
.vcard{border:1px solid var(--line);border-radius:12px;padding:12px 12px 4px;margin-bottom:10px}
.vgrid{display:grid;grid-template-columns:1fr 1fr 1.6fr 1fr 1fr;gap:10px}
.vgrid .field{margin-bottom:8px}
.stockval{min-height:48px;display:flex;align-items:center;font-weight:600}
.vcard .chip.del{margin:0 0 8px}
.quick{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}
.quick button{flex:1;min-height:46px;border-radius:10px;background:var(--bg);font-weight:600;min-width:80px}
.hint{color:var(--muted);font-size:15px;margin:4px 2px 10px}
.hint .chip{margin-left:8px;vertical-align:middle}
.warn{color:var(--danger);font-size:15px;margin:6px 0 0}
.pick-list{display:flex;flex-direction:column;gap:6px;max-height:340px;overflow-y:auto;margin-bottom:12px}
.pick-list button{text-align:left;padding:12px 14px;border-radius:10px;background:var(--bg);display:flex;justify-content:space-between;gap:10px;min-height:54px}
.items{border:1px solid var(--line);border-radius:12px;margin-bottom:10px}
.item{display:flex;align-items:center;gap:10px;padding:8px 8px 8px 14px;border-bottom:1px solid var(--line)}
.item:last-child{border-bottom:0}
.item .grow{flex:1}
.item .chip.del{margin-left:0}
.summary{background:var(--bg);border-radius:12px;padding:12px 14px;margin:12px 0}
.rl-ret{font-size:13px;color:var(--danger)}
.cam{position:relative;border-radius:12px;overflow:hidden;background:#000;height:300px;margin-bottom:10px}
.cam video{width:100%;height:100%;object-fit:cover;display:block}
.cam-line{position:absolute;left:10%;right:10%;top:50%;height:2px;background:#FF3B30;box-shadow:0 0 8px #FF3B30}

.receipt{font-size:15px;border:1px dashed var(--line);border-radius:12px;padding:18px}
.receipt .rh{text-align:center;margin-bottom:12px}
.receipt .rh b{font-size:18px;display:block}
.receipt .rl{display:flex;justify-content:space-between;gap:10px;padding:3px 0}
.receipt hr{border:0;border-top:1px dashed var(--line);margin:10px 0}
.receipt .rt{font-weight:700;font-size:18px}
.void-banner{text-align:center;color:var(--danger);font-weight:700;margin-bottom:8px}
.toast{position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--text);color:var(--surface);padding:12px 18px;border-radius:10px;font-weight:600;display:none;z-index:30;max-width:90%;text-align:center}
.toast.on{display:block}

@media (max-width:1023px){
  .salewrap{grid-template-columns:1fr;grid-template-rows:minmax(0,1fr)}
  .cart{
    position:fixed;left:0;right:0;bottom:0;z-index:7;
    max-height:calc(100% - 64px);
    border-left:0;border-top:1px solid var(--line);
    border-radius:16px 16px 0 0;
    padding-bottom:env(safe-area-inset-bottom,0px);
    box-shadow:0 -8px 24px rgba(0,0,0,.12);
  }
  .cart-bar{
    display:flex;align-items:center;justify-content:space-between;
    width:100%;min-height:56px;padding:8px 16px;text-align:left;font-weight:700;
  }
  .cart-bar::after{content:"▲";font-size:12px;color:var(--muted);margin-left:8px}
  .cart.open .cart-bar::after{content:"▼"}
  .cart:not(.open){border-radius:0}
  .cart:not(.open) .cart-body{display:none}
  .cart.open{box-shadow:0 -12px 40px rgba(0,0,0,.22)}
  .cart.open .cart-body{max-height:68vh}
  .catalog .grid{padding-bottom:96px}
  .cart-scrim{position:fixed;top:0;right:0;bottom:0;left:0;background:rgba(0,0,0,.4);z-index:6}
  .cart-scrim.on{display:block}
  #os{height:-webkit-fill-available}
  #home{padding:12px 16px 32px}
  .acts{min-width:0}
  .vgrid{grid-template-columns:1fr 1fr}
  .line .ctrl{flex-wrap:wrap}
}
@media (max-width:720px){
  .status{padding:8px 14px}
  .back-long{display:none}
  .back-short{display:inline;font-size:28px;line-height:1}
  .back{min-width:44px;padding:0 8px}
  .appbar{padding:6px 10px}
  .abtn{padding:0 10px;font-size:14px}
  .widgets{grid-template-columns:1fr;margin-bottom:20px}
  .icons{grid-template-columns:repeat(3,1fr);gap:16px 8px}
  .appicon i{width:64px;height:64px;border-radius:16px}
  .page{padding:14px 12px 28px}
  .grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));padding:8px 12px 96px}
  .syncbar{display:block}
  .syncbar .btn{margin:10px 0 0;width:100%}
  .scrim{padding:0;align-items:flex-end}
  .sheet{width:100%;max-height:92%;border-radius:16px 16px 0 0;padding:18px 16px calc(16px + env(safe-area-inset-bottom,0px))}
  .vgrid{grid-template-columns:1fr}
  .hbar{grid-template-columns:1fr;gap:4px}
  .hbar span:last-child{text-align:left}
  .seg{grid-template-columns:1fr 1fr}
  .stat.main div{font-size:28px}
  .row.grand span:last-child{font-size:24px}
  .li{align-items:flex-start}
}
/* iOS 12 Safari flex "gap" desteklemez — margin ile yedek */
.nogap .chips>*+*,.nogap .li>*+*,.nogap .cart-head>*+*,.nogap .line .ctrl>*+*,.nogap .inrow>*+*,
.nogap .prow>*+*,.nogap .item>*+*,.nogap .acts>*+*,.nogap .toolbar>*+*,.nogap .appbar>*+*,
.nogap .cart-bar>*+*{margin-left:8px}
.nogap .sheet-foot>*,.nogap .quick>*{margin:0 8px 8px 0}
.nogap .appicon i{margin-bottom:8px}
.nogap .tile>*+*{margin-top:2px}
.nogap .line .ctrl .chip.del,.nogap .prow .chip.del{margin-left:auto}
@media print{
  body *{visibility:hidden}
  #receiptBox,#receiptBox *{visibility:visible}
  #receiptBox{position:absolute;left:0;top:0;width:80mm;border:0}
}