/* iUpgrade Medical Inventory — mobile-first styles (vanilla CSS, no libraries) */
:root{
  --brand:#00b4d8;
  --brand-dark:#0093b8;
  --turq:#2de1c2;
  --turq-glow:rgba(45,225,194,.35);
  --navy:#001e38;
  --navy-2:#00294f;
  --bg:#eef7f5;
  --card:#ffffff;
  --text:#12212f;
  --muted:#5b6b7b;
  --line:#dce8e6;
  --red:#d92d20;   --red-bg:#fee4e2;
  --amber:#b54708; --amber-bg:#fef0c7;
  --green:#067647; --green-bg:#d1fadf;
  --blue:#0b7d6b;  --blue-bg:#d9f6ef;
  --radius:14px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  background:linear-gradient(180deg,#001e38 0%,#00294f 100%);
  background-attachment:fixed;
  color:var(--text);font-size:16px;line-height:1.45;
}
#app{
  max-width:480px;margin:0 auto;min-height:100dvh;background:#fff;
  display:flex;flex-direction:column;position:relative;
  box-shadow:0 0 24px rgba(0,0,0,.08);
}
main#view{flex:1;padding:16px 16px 24px;overflow-x:hidden;
  background:linear-gradient(180deg,#f3fbfa 0%,#e9f5f3 100%)}
h2{margin:0 0 12px;font-size:22px;border-left:4px solid var(--turq);padding-left:10px}
h3{margin:18px 0 10px;font-size:17px}
p{margin:8px 0}
.muted{color:var(--muted)}
.small{font-size:13px}
.err{color:var(--red);font-weight:600;min-height:1.2em;margin:8px 0}

/* ---------- app bar ---------- */
.appbar{
  background:linear-gradient(135deg,#001e38 0%,#003a6b 100%);color:#fff;
  display:flex;align-items:center;gap:12px;
  padding:12px 16px;position:sticky;top:0;z-index:20;
  border-bottom:2px solid var(--turq);
  box-shadow:0 2px 12px rgba(45,225,194,.25);
}
.appbar .brand-logo{height:40px;width:40px;object-fit:contain;border-radius:8px;background:#fff;padding:2px}
.appbar-title{font-weight:800;font-size:17px;line-height:1.2;flex:1}
.appbar-title::after{content:"";display:block;height:2px;width:44px;margin-top:3px;border-radius:2px;
  background:linear-gradient(90deg,var(--turq),transparent)}
.appbar-sub{display:block;font-weight:400;font-size:12px;opacity:.9}

/* ---------- tab bar ---------- */
.tabbar{
  position:sticky;bottom:0;z-index:20;background:#fff;
  border-top:1px solid var(--line);
  display:flex;padding:6px 4px calc(6px + env(safe-area-inset-bottom));
}
.tab{
  flex:1;border:0;background:none;color:var(--muted);
  display:flex;flex-direction:column;align-items:center;gap:2px;
  min-height:56px;justify-content:center;font-size:11px;font-weight:600;cursor:pointer;
  border-radius:10px;
}
.tab .tab-icon{font-size:22px;line-height:1}
.tab.active{color:var(--brand-dark);box-shadow:inset 0 3px 0 var(--turq)}

/* ---------- buttons / inputs ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:10px 18px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--text);font-size:16px;font-weight:700;cursor:pointer;
  text-decoration:none;
}
.btn.primary{background:linear-gradient(135deg,#00c9e0 0%,#0090c8 100%);border-color:#00a8cc;color:#fff;
  box-shadow:0 4px 14px rgba(0,180,216,.35)}
.btn.danger{background:var(--red);border-color:var(--red);color:#fff}
.btn.ghost{background:transparent}
.btn.small{min-height:42px;padding:6px 14px;font-size:14px}
.btn.block{width:100%}
.btn:disabled{opacity:.5;cursor:default}
.linkbtn{border:0;background:none;color:var(--brand);font-weight:700;font-size:14px;cursor:pointer;padding:4px}
.input,select.input,textarea.input{
  width:100%;min-height:48px;padding:10px 14px;margin:6px 0;
  border:1px solid var(--line);border-radius:12px;font-size:16px;background:#fff;color:var(--text);
}
.input:focus,select.input:focus,textarea.input:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(0,180,216,.18);
}
label.f{display:block;font-weight:700;font-size:14px;margin:10px 0 2px}
.row2{display:flex;gap:10px}
.row2>*{flex:1}

/* ---------- login ---------- */
.login-wrap{padding:32px 24px 56px;margin:0;width:100%;min-height:100dvh;
  background:radial-gradient(120% 90% at 50% 0%,#003a6b 0%,#001e38 55%,#001428 100%);}
.login-wrap h3{color:#fff}
.login-brand{text-align:center;margin:0 auto 20px;max-width:420px}
.login-card{max-width:420px;margin:0 auto}
.login-brand img{max-height:90px;max-width:220px;object-fit:contain}
.login-brand h1{font-size:24px;margin:10px 0 2px;color:#fff}
.login-brand .co{color:#7fe3d2;font-size:15px}
.login-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;
  box-shadow:0 0 0 1px rgba(45,225,194,.35),0 16px 48px rgba(0,200,190,.28)}
.demo-chips{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}
.demo-chips button{
  border:1px dashed var(--brand);color:var(--brand);background:#fff;border-radius:999px;
  padding:8px 12px;font-size:13px;font-weight:700;cursor:pointer;min-height:40px;
}
.demo-note{font-size:13px;color:#8fa9c9;text-align:center;margin-top:14px}
.login-links{display:flex;justify-content:center;gap:10px;margin-top:14px;font-size:14px}
.login-links a{color:#4dd0e1;text-decoration:none}
.login-links a:hover{text-decoration:underline}
.dev-note{margin-top:14px;padding:12px;border:1px dashed var(--line);border-radius:12px;background:rgba(255,193,7,.06)}
.dev-link{font-size:12px;word-break:break-all}
.action-row{display:flex;gap:10px;flex-wrap:wrap}

/* ---------- cards / lists ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:14px;margin:10px 0;width:100%;text-align:left;
}
button.card{cursor:pointer;font:inherit;color:inherit;display:block}
.card h4{margin:0 0 4px;font-size:16px}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:12px 0}
.kpi{
  border:1px solid var(--line);border-radius:var(--radius);padding:12px 8px;text-align:center;
  background:#fff;cursor:pointer;font:inherit;color:inherit;
}
.kpi .n{font-size:24px;font-weight:800;color:var(--brand-dark)}
.kpi .l{font-size:11px;color:var(--muted);font-weight:700;margin-top:2px}
.kpi.alert{border-color:var(--red);background:var(--red-bg)}
.kpi.warn{border-color:var(--amber);background:var(--amber-bg)}
.item-card .item-top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px}
.item-name{font-weight:700;font-size:16px}
.item-stock{text-align:right;flex-shrink:0}
.stock-num{font-size:26px;font-weight:800;color:var(--brand)}
.stock-unit{font-size:12px;color:var(--muted);margin-left:4px}
.item-meta{font-size:13px;color:var(--muted);margin:4px 0}
.badges{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.badge{font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px;white-space:nowrap}
.badge.critical{background:var(--red-bg);color:var(--red)}
.badge.warning{background:var(--amber-bg);color:var(--amber)}
.badge.info{background:var(--blue-bg);color:var(--blue)}
.badge.ok{background:var(--green-bg);color:var(--green)}
.ai-tag{font-size:11px;font-weight:800;background:#eef2ff;color:#4f46e5;border-radius:999px;padding:3px 9px}
.ai-label{font-size:12px;color:var(--muted);font-style:italic;margin:6px 0 0}
.txn{display:flex;gap:10px;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px}
.txn:last-child{border-bottom:0}
.txn .dot{width:34px;height:34px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:17px;background:var(--bg)}
.txn .tt{font-weight:700}
.txn .tm{font-size:12px;color:var(--muted)}
.empty{padding:28px 16px;text-align:center;color:var(--muted)}

/* ---------- chips / filters ---------- */
.chips{display:flex;gap:8px;overflow-x:auto;padding:4px 0 8px}
.chip{
  flex-shrink:0;border:1px solid var(--line);background:#fff;border-radius:999px;
  padding:10px 16px;font-size:14px;font-weight:700;cursor:pointer;min-height:44px;color:var(--muted);
}
.chip.active{background:linear-gradient(135deg,#00c9e0 0%,#0090c8 100%);border-color:#00a8cc;color:#fff;
  box-shadow:0 2px 8px rgba(0,180,216,.3)}
.filterrow{display:flex;gap:8px}

/* ---------- detail ---------- */
.backbtn{border:0;background:none;color:var(--brand);font-size:16px;font-weight:700;cursor:pointer;padding:8px 0;min-height:44px}
.kv{display:grid;grid-template-columns:120px 1fr;gap:6px 12px;font-size:14px;margin:10px 0}
.kv .k{color:var(--muted);font-weight:600}
.big-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:14px 0}
.big-actions .btn{min-height:60px;font-size:17px}
.action-row{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}

/* ---------- sheet / modal ---------- */
#overlay{position:fixed;inset:0;z-index:50;display:none}
#overlay.open{display:block;background:rgba(10,20,30,.55)}
.sheet{
  position:absolute;left:50%;transform:translateX(-50%);bottom:0;width:100%;max-width:480px;
  background:#fff;border-radius:20px 20px 0 0;padding:20px 20px calc(20px + env(safe-area-inset-bottom));
  max-height:92dvh;overflow-y:auto;
}
.sheet h3{margin-top:0}
.sheet-actions{display:flex;gap:10px;margin-top:14px}
.sheet-actions .btn{flex:1}
.stepper{display:flex;gap:8px;align-items:center;margin:10px 0}
.stepper .btn{flex:1}
.stepper .input{margin:0}

/* ---------- toast ---------- */
#toast{
  position:fixed;left:50%;transform:translateX(-50%);bottom:90px;z-index:99;
  max-width:440px;width:calc(100% - 32px);display:none;
  background:#12212f;color:#fff;border-radius:12px;padding:14px 16px;font-size:15px;font-weight:600;
  box-shadow:0 8px 24px rgba(0,0,0,.25);
}
#toast.show{display:block}
#toast.error{background:var(--red)}

/* ---------- assistant chat ---------- */
.ast-log{display:flex;flex-direction:column;gap:10px;max-height:50dvh;overflow-y:auto;padding:6px 2px}
.ast-msg{max-width:90%;padding:11px 14px;border-radius:16px;font-size:15px;line-height:1.5;overflow-wrap:break-word}
.ast-msg.q{align-self:flex-end;background:var(--brand);color:#fff;border-bottom-right-radius:4px}
.ast-msg.a{align-self:flex-start;background:var(--bg);color:var(--text);border-bottom-left-radius:4px}
.ast-msg.a ul{margin:6px 0;padding-left:20px}
.ast-msg.a li{margin:3px 0}
.ast-inputrow{display:flex;gap:8px;margin-top:10px;align-items:center}
.ast-inputrow .input{margin:0;flex:1;min-width:0}
.ast-mic{flex-shrink:0;min-width:52px;padding:10px 12px}
.ast-chips{display:flex;gap:8px;overflow-x:auto;padding:8px 0 2px}
.ast-chips .chip{white-space:nowrap}

/* ---------- misc ---------- */
.notice{border-radius:12px;padding:12px 14px;margin:10px 0;font-size:14px;display:flex;gap:10px;align-items:flex-start;justify-content:space-between}
.notice.warn{background:var(--amber-bg);color:var(--amber)}
.notice.info{background:var(--blue-bg);color:var(--blue)}
.pagehead{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:6px}
.pagehead h2{margin:0}
.pagehead-actions{display:flex;gap:8px}
video#scan-video{width:100%;border-radius:12px;background:#000;max-height:50dvh}
.section-title{display:flex;align-items:center;justify-content:space-between;margin:18px 0 4px}
.menu-list .card{display:flex;align-items:center;justify-content:space-between;gap:10px}
.menu-list .card .t{font-weight:700}
.menu-list .card .d{font-size:13px;color:var(--muted)}
.status{font-size:12px;font-weight:800;padding:4px 10px;border-radius:999px;text-transform:uppercase}
.status.ordered{background:var(--blue-bg);color:var(--blue)}
.status.received{background:var(--green-bg);color:var(--green)}
.status.cancelled{background:var(--line);color:var(--muted)}
.danger-zone{border:2px dashed var(--red);border-radius:var(--radius);padding:14px;margin:18px 0}
.danger-zone h3{color:var(--red);margin-top:0}
.logo-preview{max-height:80px;max-width:200px;object-fit:contain;border:1px solid var(--line);border-radius:8px;margin-top:8px}
.user-row{display:flex;align-items:center;gap:10px}
.avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#00c9e0,#0090c8);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;flex-shrink:0}

/* case receiving */
.casepack { margin-top: 8px; padding: 8px 10px; background: #e0f7f3; border: 1px solid #9adfd3; border-radius: 8px; font-weight: 600; }
.warnbox { margin-top: 8px; padding: 8px 10px; background: #fff7e6; border: 1px solid #f0c36d; border-radius: 8px; font-weight: 600; }

/* turquoise section divider for sheet headers */
.sheet h3{border-left:4px solid var(--turq);padding-left:10px}