/* ============ THEME TOKENS ============ */
:root{
  --accent:#3f9188;
  --accent-2:#2c6d66;
  --accent-ink:#eafffb;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 10px 30px rgba(0,0,0,.25);
  --font:'Vazirmatn', system-ui, sans-serif;
}

html[data-theme="wood"]{
  --bg-a:#2a1c10; --bg-b:#3c2818;
  --panel:#4a3323; --panel-2:#5c4128;
  --ink:#f3e6d0; --ink-dim:#cdb499;
  --line:rgba(243,230,208,.16);
  --paper:#efe2c8; --paper-ink:#2b1c11; --paper-line:rgba(43,28,17,.18);
}
html[data-theme="black"]{
  --bg-a:#101314; --bg-b:#181c1d;
  --panel:#1b2021; --panel-2:#232a2b;
  --ink:#eef2f2; --ink-dim:#9fb0b0;
  --line:rgba(255,255,255,.08);
  --paper:#1c2325; --paper-ink:#eef2f2; --paper-line:rgba(238,242,242,.15);
}
html[data-theme="white"]{
  --bg-a:#f6f5f1; --bg-b:#eeece5;
  --panel:#ffffff; --panel-2:#f1efe9;
  --ink:#1c2422; --ink-dim:#5c6664;
  --line:rgba(0,0,0,.08);
  --paper:#ffffff; --paper-ink:#1c2422; --paper-line:rgba(28,36,34,.14);
}
html[data-theme="latte"]{
  --bg-a:#e9dcc6; --bg-b:#ddccac;
  --panel:#f3e9d6; --panel-2:#e6d6b6;
  --ink:#3c2c1c; --ink-dim:#6c563c;
  --line:rgba(60,44,28,.16);
  --paper:#fbf3e3; --paper-ink:#3c2c1c; --paper-line:rgba(60,44,28,.18);
}

*{box-sizing:border-box; -webkit-tap-highlight-color:transparent;}
html,body{height:100%;}
body{
  margin:0; font-family:var(--font);
  background:radial-gradient(1200px 800px at 50% -10%, var(--bg-b), var(--bg-a));
  color:var(--ink);
  min-height:100vh;
}
.hidden{display:none !important;}

.app-shell{
  max-width:520px; margin:0 auto; min-height:100vh;
  padding-bottom:82px; position:relative;
}

/* ============ HEADER ============ */
.topbar{
  display:flex; align-items:center; justify-content:space-between;
  padding:calc(16px + env(safe-area-inset-top)) 18px 10px;
}
.brand{display:flex; align-items:center; gap:10px;}
.brand-logo{width:42px; height:42px; border-radius:12px; box-shadow:var(--shadow);}
.brand-text strong{font-size:17px; letter-spacing:.2px;}
.brand-text strong span{color:var(--accent);}
.brand-text small{display:block; color:var(--ink-dim); font-size:11px; margin-top:1px;}
.icon-btn{
  width:38px; height:38px; border-radius:50%; border:1px solid var(--line);
  background:var(--panel); color:var(--ink); font-size:16px; cursor:pointer;
}

/* ============ TAB PANELS ============ */
.tab-panel{padding:6px 16px 24px;}
h2{font-size:14px; color:var(--ink-dim); margin:18px 0 8px; font-weight:600;}

/* ============ SEARCH + VOICE ============ */
.search-row{display:flex; gap:8px; align-items:center;}
.search-box{position:relative; flex:1;}
.search-box input{
  width:100%; padding:12px 38px 12px 12px; border-radius:var(--radius-sm);
  border:1px solid var(--line); background:var(--panel); color:var(--ink); font-family:var(--font); font-size:14px;
}
.search-box input:focus{outline:2px solid var(--accent); outline-offset:1px;}
.search-icon{position:absolute; right:12px; top:50%; transform:translateY(-50%); opacity:.6;}
.mic-btn{
  width:46px; height:46px; border-radius:50%; border:none; flex-shrink:0;
  background:linear-gradient(160deg, var(--accent), var(--accent-2)); color:#fff; font-size:18px;
  cursor:pointer; box-shadow:0 6px 16px rgba(63,145,136,.4);
}
.mic-btn.recording{animation:pulse 1.1s infinite;}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(63,145,136,.55);}
  70%{box-shadow:0 0 0 14px rgba(63,145,136,0);}
  100%{box-shadow:0 0 0 0 rgba(63,145,136,0);}
}
.lang-select{
  border-radius:var(--radius-sm); border:1px solid var(--line); background:var(--panel);
  color:var(--ink); font-family:var(--font); padding:10px 6px; font-size:12px;
}
.voice-status{
  margin-top:10px; padding:10px 12px; border-radius:var(--radius-sm);
  background:var(--panel-2); border:1px dashed var(--accent); font-size:13px; color:var(--ink-dim);
}

/* ============ PRODUCT RESULTS ============ */
.product-results{display:flex; flex-direction:column; gap:8px; margin-top:12px; max-height:260px; overflow-y:auto;}
.product-result-item{
  display:flex; align-items:center; gap:10px; background:var(--panel);
  border:1px solid var(--line); border-radius:var(--radius-sm); padding:8px 10px; cursor:pointer;
}
.product-result-item:active{transform:scale(.98);}
.pr-thumb{width:38px; height:38px; border-radius:8px; object-fit:cover; background:var(--panel-2); flex-shrink:0;}
.pr-info{flex:1; min-width:0;}
.pr-name{font-size:14px; font-weight:600; white-space:nowrap; overflow:hidden; text-overflow:ellipsis;}
.pr-price{font-size:12px; color:var(--ink-dim);}
.pr-add{
  width:30px; height:30px; border-radius:50%; border:none; background:var(--accent); color:#fff;
  font-size:16px; flex-shrink:0; cursor:pointer;
}

/* ============ INVOICE CARD (signature receipt look) ============ */
.invoice-card{
  margin-top:18px; background:var(--paper); color:var(--paper-ink);
  border-radius:14px 14px 4px 4px; box-shadow:var(--shadow);
  padding:18px 16px 14px; position:relative;
  background-image:
    repeating-linear-gradient(90deg, transparent 0 22px, var(--paper-line) 22px 23px);
  background-size:100% 100%;
}
.invoice-card::after{
  content:""; position:absolute; left:0; right:0; bottom:-9px; height:18px;
  background:
    radial-gradient(circle at 9px 0, transparent 9px, var(--paper) 9.5px) repeat-x;
  background-size:18px 18px;
}
.invoice-card-head{display:flex; align-items:center; gap:10px; padding-bottom:10px; border-bottom:1px dashed var(--paper-line);}
.stamp{
  width:36px; height:36px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  background:linear-gradient(160deg, var(--accent), var(--accent-2)); color:#fff; font-size:17px; flex-shrink:0;
  box-shadow:0 4px 10px rgba(0,0,0,.25);
}
.invoice-title{font-weight:700; font-size:14.5px;}
.invoice-sub{font-size:11px; color:var(--paper-ink); opacity:.6;}

.invoice-items{padding:10px 0 4px; min-height:40px;}
.empty-hint{font-size:12.5px; opacity:.65; text-align:center; padding:14px 6px; line-height:1.9;}

.invoice-line{
  display:flex; align-items:center; gap:8px; padding:8px 0; border-bottom:1px dotted var(--paper-line);
}
.il-thumb{width:32px; height:32px; border-radius:7px; object-fit:cover; background:rgba(0,0,0,.08); flex-shrink:0;}
.il-name{flex:1; font-size:13px; font-weight:600; min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap;}
.il-qty{display:flex; align-items:center; gap:4px; background:rgba(0,0,0,.05); border-radius:20px; padding:2px 4px;}
.il-qty button{
  width:22px; height:22px; border-radius:50%; border:none; background:var(--accent); color:#fff; font-size:13px; cursor:pointer;
}
.il-qty span{min-width:20px; text-align:center; font-size:13px; font-variant-numeric:tabular-nums;}
.il-price{font-size:12.5px; min-width:70px; text-align:left; font-variant-numeric:tabular-nums;}
.il-remove{background:none; border:none; color:#b04a3a; font-size:15px; cursor:pointer; padding:2px 4px;}

.invoice-totals{margin-top:8px; padding-top:6px;}
.invoice-totals .row{display:flex; justify-content:space-between; font-size:12.5px; padding:3px 0; opacity:.75;}
.invoice-totals .row.grand{
  opacity:1; font-size:16px; font-weight:800; border-top:1px dashed var(--paper-line); margin-top:4px; padding-top:8px;
}
.currency-row{display:flex; align-items:center; gap:8px; margin-top:8px; font-size:12.5px;}
.currency-row select{
  flex:1; padding:8px; border-radius:8px; border:1px solid var(--paper-line); background:transparent; color:var(--paper-ink); font-family:var(--font);
}

.invoice-actions{display:flex; gap:6px; margin-top:14px;}

/* ============ BUTTONS ============ */
.btn{
  flex:1; padding:11px 8px; border-radius:11px; border:none; font-family:var(--font);
  font-size:12.5px; font-weight:700; cursor:pointer;
}
.btn.primary{background:linear-gradient(160deg, var(--accent), var(--accent-2)); color:#fff;}
.btn.outline{background:transparent; border:1.5px solid var(--accent); color:var(--accent);}
html[data-theme="wood"] .btn.outline,
html[data-theme="black"] .btn.outline{color:var(--accent); border-color:var(--accent);}
.btn.ghost{background:rgba(0,0,0,.06); color:inherit;}

/* ============ PRODUCT FORM / LIST ============ */
.product-form{background:var(--panel); border:1px solid var(--line); border-radius:var(--radius); padding:14px; margin-top:6px;}
.product-form label{display:block; font-size:12.5px; color:var(--ink-dim); margin-bottom:10px;}
.product-form input[type=text], .product-form input[type=number]{
  width:100%; margin-top:5px; padding:11px; border-radius:var(--radius-sm); border:1px solid var(--line);
  background:var(--panel-2); color:var(--ink); font-family:var(--font); font-size:14px;
}
.product-form input[type=file]{margin-top:5px; font-size:12px; color:var(--ink-dim); width:100%;}
.img-preview-wrap{display:flex; align-items:center; gap:10px; margin-bottom:10px;}
.img-preview-wrap img{width:56px; height:56px; border-radius:10px; object-fit:cover; border:1px solid var(--line);}
.tiny-btn{background:none; border:none; color:#b04a3a; font-size:12px; cursor:pointer;}
.form-actions{display:flex; gap:8px; margin-top:4px;}

.plain-search{
  width:100%; padding:11px 12px; border-radius:var(--radius-sm); border:1px solid var(--line);
  background:var(--panel); color:var(--ink); font-family:var(--font); font-size:13.5px; margin-bottom:10px;
}
.list-title{margin-top:22px;}
.products-list{display:flex; flex-direction:column; gap:8px;}
.product-row{
  display:flex; align-items:center; gap:10px; background:var(--panel); border:1px solid var(--line);
  border-radius:var(--radius-sm); padding:9px 10px;
}
.product-row img{width:44px; height:44px; border-radius:10px; object-fit:cover; background:var(--panel-2); flex-shrink:0;}
.product-row .pinfo{flex:1; min-width:0;}
.product-row .pname{font-size:13.5px; font-weight:700;}
.product-row .pmeta{font-size:11.5px; color:var(--ink-dim); margin-top:2px;}
.product-row .prow-actions{display:flex; gap:6px;}
.product-row .prow-actions button{
  border:none; background:var(--panel-2); color:var(--ink); width:30px; height:30px; border-radius:8px; cursor:pointer;
}

/* ============ HISTORY ============ */
.history-list{display:flex; flex-direction:column; gap:10px;}
.history-item{
  background:var(--panel); border:1px solid var(--line); border-radius:var(--radius-sm); padding:12px;
  cursor:pointer;
}
.history-item .h-top{display:flex; justify-content:space-between; font-size:13px; font-weight:700;}
.history-item .h-bottom{display:flex; justify-content:space-between; font-size:11.5px; color:var(--ink-dim); margin-top:4px;}
.history-empty{color:var(--ink-dim); font-size:13px; text-align:center; padding:30px 10px;}

/* ============ SETTINGS ============ */
.theme-grid{display:grid; grid-template-columns:1fr 1fr; gap:10px;}
.theme-swatch{
  display:flex; align-items:center; gap:8px; padding:10px; border-radius:12px; border:1.5px solid var(--line);
  background:var(--panel); color:var(--ink); font-family:var(--font); font-size:12.5px; cursor:pointer;
}
.theme-swatch.active{border-color:var(--accent); box-shadow:0 0 0 2px var(--accent) inset;}
.sw{width:20px; height:20px; border-radius:50%; flex-shrink:0; border:1px solid rgba(0,0,0,.15);}
.sw-wood{background:linear-gradient(160deg,#3c2818,#c9a24b);}
.sw-black{background:linear-gradient(160deg,#101314,#3f9188);}
.sw-white{background:linear-gradient(160deg,#ffffff,#3f9188);}
.sw-latte{background:linear-gradient(160deg,#e9dcc6,#8a5a2b);}

.rate-grid{display:flex; flex-direction:column; gap:8px; margin-bottom:10px;}
.rate-grid label{display:flex; justify-content:space-between; align-items:center; font-size:12.5px; color:var(--ink-dim); gap:8px;}
.rate-grid input{
  width:130px; padding:9px; border-radius:8px; border:1px solid var(--line); background:var(--panel);
  color:var(--ink); font-family:var(--font); text-align:left;
}
.backup-row{display:flex; gap:8px;}
.file-label{display:flex; align-items:center; justify-content:center; text-align:center;}
.hint-text{font-size:11.5px; color:var(--ink-dim); margin-top:10px; line-height:1.8;}

/* ============ BOTTOM NAV ============ */
.bottom-nav{
  position:fixed; bottom:0; left:50%; transform:translateX(-50%); width:100%; max-width:520px;
  display:flex; background:var(--panel); border-top:1px solid var(--line);
  padding:8px 6px calc(8px + env(safe-area-inset-bottom));
  z-index:20;
}
.nav-btn{
  flex:1; display:flex; flex-direction:column; align-items:center; gap:3px; background:none; border:none;
  color:var(--ink-dim); font-family:var(--font); font-size:10.5px; padding:6px 2px; border-radius:10px; cursor:pointer;
}
.nav-btn span{font-size:18px;}
.nav-btn.active{color:var(--accent); background:rgba(63,145,136,.12);}

/* ============ TOAST ============ */
.toast{
  position:fixed; bottom:92px; left:50%; transform:translateX(-50%) translateY(20px); opacity:0;
  background:var(--panel); color:var(--ink); border:1px solid var(--line); padding:10px 16px; border-radius:30px;
  font-size:12.5px; box-shadow:var(--shadow); transition:.25s; pointer-events:none; z-index:50; white-space:nowrap;
}
.toast.show{opacity:1; transform:translateX(-50%) translateY(0);}

/* ============ PRINT ============ */
.print-only{display:none;}
@media print{
  body *{visibility:hidden;}
  .print-only, .print-only *{visibility:visible;}
  .print-only{display:block; position:absolute; top:0; left:0; width:100%; padding:20px; color:#111; font-family:var(--font);}
  .print-only h1{font-size:18px; margin-bottom:2px;}
  .print-only table{width:100%; border-collapse:collapse; margin-top:10px; font-size:13px;}
  .print-only th, .print-only td{border-bottom:1px solid #ccc; padding:6px 4px; text-align:right;}
  .print-only .p-total{margin-top:12px; font-size:15px; font-weight:800; text-align:left;}
}

/* Scrollbars minimal */
::-webkit-scrollbar{width:5px; height:5px;}
::-webkit-scrollbar-thumb{background:var(--line); border-radius:10px;}