:root{
  --ink:#16181D;
  --ink-soft:#6B7280;
  --bg:#F4F5F7;
  --panel:#FFFFFF;
  --primary:#4F46E5;
  --primary-dark:#4338CA;
  --primary-soft:#EEF2FF;
  --good:#059669;
  --good-soft:#ECFDF5;
  --warn:#D97706;
  --warn-soft:#FFFBEB;
  --danger:#DC2626;
  --danger-soft:#FEF2F2;
  --line:#E5E7EB;
  --radius:14px;
  --shadow:0 1px 3px rgba(16,24,40,0.06), 0 1px 2px rgba(16,24,40,0.04);
  --shadow-lg:0 10px 30px rgba(16,24,40,0.12);
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;height:100%;overflow-x:hidden;}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);color:var(--ink);
  font-size:14.5px;line-height:1.55;letter-spacing:-0.01em;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{font-family:'Space Grotesk',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;font-weight:700;margin:0;line-height:1.2;letter-spacing:-0.01em;}
.mono{font-family:'JetBrains Mono',ui-monospace,Menlo,monospace;letter-spacing:0;}
a{color:var(--primary);text-decoration:none;}
button{font-family:inherit;line-height:1.4;}
input,select,textarea{font-family:inherit;line-height:1.4;}

#app{min-height:100vh;display:flex;flex-direction:column;max-width:100vw;overflow-x:hidden;}

/* ---------------- Login ---------------- */
.auth-screen{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:
    radial-gradient(circle at 15% 20%, rgba(79,70,229,0.10), transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(79,70,229,0.06), transparent 40%),
    var(--bg);
  padding:16px;
}
.auth-card{
  background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow-lg);
  border-radius:20px;padding:30px 22px;max-width:380px;width:100%;text-align:center;
}
@media (min-width:420px){ .auth-card{padding:36px 30px;} }
.auth-logo{width:60px;height:60px;object-fit:contain;margin-bottom:14px;}
.auth-card h1{font-size:22px;margin-bottom:4px;}
.auth-card .tag{color:var(--ink-soft);font-size:13px;margin-bottom:26px;}
.field{margin-bottom:14px;text-align:left;min-width:0;}
/* Filter rows (date range + dropdown + button, used on Reports/Audit Log/etc.)
   need each field to have a real flex-basis so they wrap two-to-a-row on
   narrow screens instead of being squeezed to unreadable widths or forcing
   the row to overflow sideways. */
.card > .field, .card[style*="display:flex"] > .field{flex:1 1 130px;}
.field label{display:block;font-size:11.5px;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.5px;font-weight:600;margin-bottom:6px;}
.field input,.field select{
  width:100%;padding:12px 14px;border-radius:10px;border:1.5px solid var(--line);
  background:#FAFAFB;color:var(--ink);font-size:14.5px;font-family:inherit;
}
.field input:focus,.field select:focus{outline:none;border-color:var(--primary);background:#fff;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:12px 18px;border-radius:10px;border:1px solid var(--line);background:var(--panel);
  font-weight:600;font-size:14px;cursor:pointer;color:var(--ink);
}
.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff;}
.btn.primary:hover{background:var(--primary-dark);}
.btn.ghost{background:transparent;border-color:var(--line);}
.btn.danger{background:var(--danger);border-color:var(--danger);color:#fff;}
.btn.sm{padding:7px 12px;font-size:12.5px;}
.btn.block{width:100%;}
.alert{border-radius:10px;padding:11px 14px;font-size:13px;font-weight:600;margin-bottom:16px;text-align:left;}
.alert.error{background:var(--danger-soft);color:var(--danger);}
.alert.success{background:var(--good-soft);color:var(--good);}
.auth-note{margin-top:16px;font-size:11px;color:var(--ink-soft);}
.credit{font-size:10px;color:var(--ink-soft);opacity:.6;margin-top:14px;}

/* ---------------- App shell ---------------- */
.appbar{
  position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;
  padding:14px 18px;background:var(--panel);border-bottom:1px solid var(--line);gap:10px;
}
.appbar .id{display:flex;align-items:center;gap:10px;min-width:0;}
.appbar img{width:28px;height:28px;object-fit:contain;border-radius:6px;flex-shrink:0;}
.appbar h2{font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.appbar .who{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--ink-soft);flex-shrink:0;}
@media (max-width:420px){ .appbar .who span.wholabel{display:none;} }
.avatar{width:30px;height:30px;border-radius:50%;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:12px;}

.view{flex:1;padding:18px 18px 100px;max-width:1080px;width:100%;margin:0 auto;}

.tabbar{
  position:fixed;bottom:0;left:0;right:0;background:var(--panel);border-top:1px solid var(--line);
  display:flex;padding:6px 4px calc(6px + env(safe-area-inset-bottom));z-index:30;
}
.tabbar .tab{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 2px;
  color:var(--ink-soft);cursor:pointer;border-radius:10px;
}
.tabbar .tab.active{color:var(--primary);background:var(--primary-soft);}
.tabbar .tab span.lbl{font-size:9.5px;font-weight:700;}
.tabbar .tab svg{width:19px;height:19px;}

/* Mobile-first: the desktop sidebar is completely hidden below 860px.
   This MUST be a base rule (not nested inside the desktop media query) —
   otherwise, on mobile, this block renders unstyled at full width with
   its icons at their raw unconstrained size, breaking the entire layout. */
.desktop-nav{display:none;}
.desktop-nav .navitem svg{width:17px;height:17px;}

/* Hamburger button — mobile only, opens the nav panel as a slide-in drawer */
.hamburger-btn{
  display:flex;flex-direction:column;justify-content:center;gap:4px;
  width:34px;height:34px;background:transparent;border:1px solid var(--line);
  border-radius:9px;cursor:pointer;flex-shrink:0;
}
.hamburger-btn span{display:block;width:15px;height:2px;background:var(--ink);margin:0 auto;border-radius:2px;}

.nav-close{display:none;background:transparent;border:none;font-size:16px;color:var(--ink-soft);cursor:pointer;padding:4px 8px;}
.nav-backdrop{display:none;position:fixed;inset:0;background:rgba(15,17,21,0.5);z-index:59;}
.nav-backdrop.open{display:block;}

@media (max-width:859px){
  .desktop-nav{
    display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;width:260px;
    background:var(--panel);z-index:60;padding:18px 12px;overflow-y:auto;
    transform:translateX(-100%);transition:transform .22s ease;box-shadow:0 0 30px rgba(0,0,0,0.2);
  }
  .desktop-nav.open{transform:translateX(0);}
  .desktop-nav .navitem{
    display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:10px;
    color:var(--ink-soft);font-weight:600;font-size:14px;cursor:pointer;margin-bottom:2px;
  }
  .desktop-nav .navitem.active{background:var(--primary-soft);color:var(--primary);}
  .nav-close{display:block;}
}

@media (min-width:860px){
  .hamburger-btn,.nav-close{display:none;}
}

@media (min-width:860px){
  .tabbar{display:none;}
  .view{padding-bottom:24px;}
  .desktop-nav{
    display:flex;position:fixed;left:0;top:0;bottom:0;width:220px;background:var(--panel);
    border-right:1px solid var(--line);padding:20px 12px;flex-direction:column;z-index:20;overflow-y:auto;
  }
  .desktop-nav .id{padding:6px 10px 20px;}
  .desktop-nav .navitem{
    display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;
    color:var(--ink-soft);font-weight:600;font-size:13.5px;cursor:pointer;margin-bottom:2px;
  }
  .desktop-nav .navitem.active{background:var(--primary-soft);color:var(--primary);}
  #app.with-desktop-nav .appbar,#app.with-desktop-nav .view{margin-left:220px;}
}

/* Safety net: ANY svg icon anywhere in the app, even ones added later that
   forget to size themselves explicitly, is capped to a sane size instead
   of being able to render at a raw, huge, unconstrained default. */
svg{width:20px;height:20px;flex-shrink:0;}

/* ---------------- Cards / stats ---------------- */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;}
.card table{min-width:480px;}
.grid{display:grid;gap:12px;}
.grid.cols-2{grid-template-columns:1fr 1fr;}
.grid.cols-4{grid-template-columns:repeat(4,1fr);}
@media (max-width:700px){ .grid.cols-4{grid-template-columns:1fr 1fr;} }
.stat-label{font-size:11px;text-transform:uppercase;letter-spacing:.5px;color:var(--ink-soft);font-weight:700;margin-bottom:6px;}
.stat-value{font-family:'JetBrains Mono',ui-monospace,monospace;font-size:21px;font-weight:700;letter-spacing:-0.01em;}
.stat-value.good{color:var(--good);}
.stat-value.danger{color:var(--danger);}
.section-title{font-size:12.5px;text-transform:uppercase;letter-spacing:.5px;color:var(--ink-soft);font-weight:700;margin:22px 0 10px;}
.pill{display:inline-block;padding:3px 10px;border-radius:999px;font-size:10.5px;font-weight:700;}
.pill.good{background:var(--good-soft);color:var(--good);}
.pill.warn{background:var(--warn-soft);color:var(--warn);}
.pill.danger{background:var(--danger-soft);color:var(--danger);}

table{width:100%;border-collapse:collapse;font-size:13px;}
th{text-align:left;font-size:10.5px;text-transform:uppercase;letter-spacing:.4px;color:var(--ink-soft);padding:9px 10px;border-bottom:1px solid var(--line);}
td{padding:10px;border-bottom:1px solid var(--line);}
tr:last-child td{border-bottom:none;}
.num{font-family:'JetBrains Mono',monospace;text-align:right;}

.spinner{width:22px;height:22px;border:3px solid var(--line);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite;margin:30px auto;}
@keyframes spin{to{transform:rotate(360deg);}}

/* ---------------- POS / Sell ---------------- */
.cat-tabs{display:flex;gap:8px;overflow-x:auto;padding-bottom:10px;margin-bottom:14px;-webkit-overflow-scrolling:touch;}
.cat-tab{flex-shrink:0;padding:8px 15px;border-radius:999px;background:var(--panel);border:1px solid var(--line);font-size:12.5px;font-weight:700;cursor:pointer;color:var(--ink-soft);}
.cat-tab.active{background:var(--primary);color:#fff;border-color:var(--primary);}
.item-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;padding-bottom:190px;}
@media (min-width:700px){ .item-grid{grid-template-columns:repeat(4,1fr);} }
.item-tile{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:13px;cursor:pointer;position:relative;transition:.12s;}
.item-tile:hover{border-color:var(--primary);transform:translateY(-1px);}
.item-tile.out{opacity:.45;cursor:not-allowed;}
.item-tile .iname{font-weight:700;font-size:13.5px;margin-bottom:4px;}
.item-tile .iprice{font-family:'JetBrains Mono',monospace;font-size:12.5px;color:var(--ink-soft);}
.item-tile .istock{font-size:10.5px;color:var(--ink-soft);opacity:.8;margin-top:4px;}
.item-tile .qtybadge{position:absolute;top:-6px;right:-6px;background:var(--primary);color:#fff;width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:800;box-shadow:0 2px 6px rgba(0,0,0,0.2);}

.cart-drawer{
  position:fixed;bottom:0;left:0;right:0;background:var(--ink);color:#F4F5F7;border-radius:18px 18px 0 0;
  padding:14px 16px 16px;box-shadow:0 -10px 30px rgba(0,0,0,0.25);z-index:25;
  max-height:70vh;display:flex;flex-direction:column;
}
/* The mobile tab bar sits fixed at the bottom with a HIGHER z-index than the
   cart drawer, so without this offset it visually covers the drawer's own
   bottom edge — exactly where the Checkout button lives — even though the
   drawer's content is still technically there underneath. Lifting the whole
   drawer up by the tab bar's height (plus safe-area for notched phones)
   fixes this instead of relying on z-index/overflow tricks that don't
   address the actual overlap. */
@media (max-width:859px){
  .cart-drawer{ bottom:calc(64px + env(safe-area-inset-bottom)); max-height:calc(70vh - 64px); }
}
@media (min-width:860px){ .cart-drawer{left:236px;} }
.cart-drawer .hdr{font-weight:700;font-size:13px;margin-bottom:8px;flex-shrink:0;}
.cart-lines{overflow-y:auto;flex:1 1 auto;min-height:0;}
.cart-row{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;padding:7px 0;border-bottom:1px solid rgba(255,255,255,0.08);gap:8px;}
.cart-row:last-child{border-bottom:none;}
.cart-row .qtybtn{width:24px;height:24px;border-radius:7px;border:1px solid rgba(255,255,255,0.25);background:transparent;color:#fff;cursor:pointer;font-weight:700;}
.cart-total-row{display:flex;justify-content:space-between;border-top:1px dashed rgba(255,255,255,0.25);margin-top:8px;padding-top:10px;font-family:'JetBrains Mono',monospace;font-size:17px;font-weight:800;flex-shrink:0;}
.cart-cta{display:flex;gap:8px;margin-top:12px;flex-shrink:0;}
.cart-cta button{flex:1;padding:12px;border-radius:10px;border:none;font-weight:700;font-size:13.5px;cursor:pointer;}
.cart-cta .checkout{background:var(--primary);color:#fff;}
.cart-cta .owing{background:rgba(255,255,255,0.12);color:#fff;}

.modal-overlay{position:fixed;inset:0;background:rgba(15,17,21,0.55);z-index:50;display:flex;align-items:flex-start;justify-content:center;padding:40px 18px;overflow-y:auto;}
.modal-card{background:var(--panel);border-radius:18px;padding:22px;max-width:400px;width:100%;box-shadow:var(--shadow-lg);}

/* ---------------- Notification bell ---------------- */
.notif-wrap{position:relative;}
.notif-bell{position:relative;background:transparent;border:1px solid var(--line);border-radius:9px;width:36px;height:36px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--ink-soft);}
.notif-bell:hover{color:var(--primary);border-color:var(--primary);}
.notif-badge{position:absolute;top:-6px;right:-6px;background:var(--danger);color:#fff;font-size:10px;font-weight:700;border-radius:999px;min-width:17px;height:17px;display:flex;align-items:center;justify-content:center;padding:0 3px;}
.notif-dropdown{display:none;position:absolute;right:0;top:44px;width:300px;max-height:360px;overflow-y:auto;background:var(--panel);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-lg);z-index:40;padding:10px;}
.notif-dropdown.open{display:block;}
.notif-section-title{font-size:10.5px;text-transform:uppercase;letter-spacing:.4px;color:var(--ink-soft);font-weight:700;margin:10px 4px 6px;}
.notif-section-title:first-child{margin-top:2px;}
.notif-row{display:flex;justify-content:space-between;align-items:center;padding:7px 4px;font-size:12.5px;border-bottom:1px solid var(--line);gap:8px;}
.notif-row:last-child{border-bottom:none;}
.notif-empty{padding:14px 6px;color:var(--ink-soft);font-size:12.5px;text-align:center;}