:root{
  --teal:#0d9488; --teal-d:#0f766e; --teal-l:#2dd4bf;
  --ink:#0b1220; --muted:#667085; --line:#e7eae6; --bg:#eef2ee; --card:#ffffff;
  --cogs:#0ea5e9; --ga:#f59e0b; --inv:#8b5cf6; --labor:#ef4444; --mkt:#ec4899;
  --ok:#16a34a; --warn:#f59e0b; --err:#dc2626;
  --shadow:0 1px 2px rgba(15,23,42,.06),0 1px 3px rgba(15,23,42,.05);
  --shadow-md:0 4px 14px rgba(15,23,42,.08),0 2px 5px rgba(15,23,42,.05);
  --ring:0 0 0 3px rgba(20,184,166,.18);
  --hair:rgba(15,23,42,.06);
}
html{color-scheme:light}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  background:var(--bg);color:var(--ink);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;letter-spacing:.1px}
.app{max-width:480px;margin:0 auto;min-height:100dvh;background:linear-gradient(180deg,#e6f0ea 0%,#f4f8f4 34%,#f6f9f5 100%);position:relative;overflow:hidden}
[hidden],.hidden{display:none !important}
button{font-family:inherit;cursor:pointer}

.login{min-height:100dvh;display:flex;flex-direction:column;justify-content:center;justify-content:safe center;
  padding:24px 24px calc(30px + env(safe-area-inset-bottom));
  background:radial-gradient(130% 80% at 50% -8%,#2dd4bf 0%,#14b8a6 34%,#0d9488 60%,#115e59 100%);color:#fff}
.brand{text-align:center;margin-bottom:30px}
.brand .logo{width:88px;height:88px;border-radius:26px;background:#fff;display:flex;align-items:center;justify-content:center;font-size:36px;margin:0 auto 16px;overflow:hidden;
  box-shadow:0 16px 40px rgba(0,0,0,.30),0 0 0 7px rgba(255,255,255,.12),0 0 0 1px rgba(255,255,255,.35)}
.brand .logo img{width:100%;height:100%;object-fit:cover;display:block}
.brand h1{font-size:27px;margin:0 0 5px;font-weight:800;letter-spacing:-.6px}
.brand p{margin:0;opacity:.82;font-size:13.5px}
.login-card{background:rgba(255,255,255,.94);color:var(--ink);border-radius:26px;padding:24px 22px;
  border:1px solid rgba(255,255,255,.55);backdrop-filter:blur(22px) saturate(1.3);-webkit-backdrop-filter:blur(22px) saturate(1.3);
  box-shadow:0 32px 60px -14px rgba(0,0,0,.42),0 8px 20px -8px rgba(0,0,0,.3)}
.field-label{font-size:12px;color:var(--muted);font-weight:600;margin:2px 0 6px;text-transform:uppercase;letter-spacing:.4px}
.phone-in{width:100%;border:1.5px solid var(--line);border-radius:12px;padding:13px 14px;font-size:16px;outline:none}
.phone-in:focus{border-color:var(--teal);box-shadow:var(--ring)}
.pin-dots{display:flex;gap:14px;justify-content:center;margin:18px 0}
.pin-dots .dot{width:15px;height:15px;border-radius:50%;background:var(--line);transition:.18s}
.pin-dots .dot.on{background:var(--teal);transform:scale(1.1);box-shadow:0 0 0 5px rgba(13,148,136,.16)}
.pin-dots.ready{animation:pinpulse .6s ease}
@keyframes pinpulse{0%,100%{transform:scale(1)}50%{transform:scale(1.1)}}
.keypad{display:grid;grid-template-columns:repeat(3,1fr);gap:11px;margin-top:8px}
.key{background:#fff;border:1.5px solid var(--line);border-radius:18px;padding:17px 0;font-size:23px;font-weight:600;color:var(--ink);box-shadow:0 1px 2px rgba(11,18,32,.05);transition:transform .08s,box-shadow .15s,background .15s,border-color .15s}
.key:active{background:#f0fdfa;border-color:var(--teal-l);transform:scale(.93);box-shadow:0 0 0 4px rgba(45,212,191,.22)}
.key.fn{font-size:15px;color:var(--muted);font-weight:600;background:transparent;border-color:transparent;box-shadow:none}
.key.fn:active{background:#f0fdfa;box-shadow:none}
.login-err{color:var(--err);font-size:13px;text-align:center;min-height:18px;margin-top:10px}
.demo-hint{margin-top:14px;font-size:11.5px;color:var(--muted);text-align:center;line-height:1.6}

.topbar{position:sticky;top:0;z-index:20;background:linear-gradient(120deg,#14b8a6 0%,#0d9488 52%,#0f766e 100%);color:#fff;padding:calc(15px + env(safe-area-inset-top)) 18px 16px;display:flex;align-items:center;justify-content:space-between;border-radius:0 0 22px 22px;box-shadow:0 8px 22px rgba(13,148,136,.28)}
.topbar .t-title{font-size:17px;font-weight:700}
.topbar .t-sub{font-size:11.5px;opacity:.82}
.topbar .avatar{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px}
.screen{padding:16px 16px 96px;animation:fade .2s}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

.card{background:var(--card);border-radius:20px;padding:17px;box-shadow:0 6px 22px rgba(11,18,32,.06),0 2px 6px rgba(11,18,32,.04);border:1px solid var(--hair);margin-bottom:14px;transition:box-shadow .2s,transform .12s}
.card h3{margin:0 0 12px;font-size:15px;font-weight:700;letter-spacing:-.2px}
.sub{color:var(--muted);font-size:12.5px}
.row{display:flex;gap:10px}
label.lbl{display:block;font-size:12px;color:var(--muted);font-weight:600;margin:12px 0 6px}
input.f,select.f,textarea.f{width:100%;border:1.5px solid var(--line);border-radius:11px;padding:12px 13px;font-size:16px;outline:none;background:#fff;font-family:inherit}
input.f:focus,select.f:focus,textarea.f:focus{border-color:var(--teal);box-shadow:var(--ring)}
.btn{width:100%;background:linear-gradient(135deg,var(--teal-l) 0%,var(--teal) 55%,var(--teal-d) 100%);color:#fff;border:none;border-radius:12px;padding:14px;font-size:15px;font-weight:700;letter-spacing:.2px;box-shadow:0 4px 14px rgba(15,118,110,.28);transition:transform .1s,box-shadow .2s,opacity .2s}
.btn:active{transform:translateY(1px) scale(.99);box-shadow:0 2px 8px rgba(15,118,110,.22)}
.btn:disabled{opacity:.5;box-shadow:none}
.btn.ghost{background:#fff;color:var(--teal);border:1.5px solid var(--teal);box-shadow:none}
.btn.ghost:active{background:#f0fdfa;transform:translateY(1px) scale(.99)}
.btn.sm{padding:10px;font-size:13px;width:auto}

.uploader{border:2px dashed var(--line);border-radius:14px;padding:22px 14px;text-align:center;color:var(--muted);background:#fafbfc}
.uploader .ic{font-size:30px}
.uploader.filled{border-color:var(--teal);background:#f0fdfa;color:var(--teal)}
.thumb-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.thumb{width:60px;height:60px;border-radius:10px;object-fit:cover;border:1px solid var(--line)}
.thumb.sm{width:46px;height:46px;flex-shrink:0;cursor:zoom-in}
.thumb.lg{width:120px;height:120px;cursor:zoom-in}
.img-bg{position:fixed;inset:0;background:rgba(0,0,0,.9);z-index:70;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px;cursor:zoom-out}
.img-bg img{max-width:100%;max-height:82vh;border-radius:10px;object-fit:contain}
.img-close{color:#fff;margin-top:14px;font-size:13px;opacity:.85}
.debt-item{padding:12px 0;border-bottom:1px solid var(--line)}
.debt-item:last-child{border-bottom:none}
.debt-item .top{display:flex;justify-content:space-between;font-size:14px;margin-bottom:3px}

/* tồn kho + trạng thái đơn */
.prod.oos{opacity:.55}
.prod .stock{font-size:11px;font-weight:700;margin-top:4px}
.prod .stock.low{color:var(--err)}
.stt{font-size:10.5px;font-weight:700;padding:3px 8px;border-radius:20px;white-space:nowrap}
.stt.wait{background:#fef3c7;color:#92400e} .stt.ok{background:#dbeafe;color:#1e40af}
.stt.ship{background:#dcfce7;color:#166534} .stt.oos{background:#fee2e2;color:#991b1b}
.ord-item{border-bottom:1px solid var(--line)}
.ord-item:last-child{border-bottom:none}
.ord-actions{display:flex;gap:6px;flex-wrap:wrap;margin:2px 0 10px}
.ord-actions button{flex:1;min-width:96px}
/* bộ lọc thời gian chung */
#periodBar{position:sticky;top:0;z-index:15;background:#fff;border-bottom:1px solid var(--line)}
.pbar{display:flex;align-items:center;gap:8px;padding:8px 12px;flex-wrap:wrap;max-width:480px;margin:0 auto}
.pbar .pico{font-size:15px}
.pseg{display:flex;gap:6px;flex-wrap:wrap}
.pseg button{border:1.5px solid var(--line);background:#fff;border-radius:20px;padding:5px 11px;font-size:12px;font-weight:600;color:var(--muted)}
.pseg button.on{border-color:var(--teal);background:var(--teal);color:#fff}
.pcustom{display:flex;align-items:center;gap:6px;flex-wrap:wrap;width:100%;margin-top:4px}
.pcustom input{border:1.5px solid var(--line);border-radius:9px;padding:6px 8px;font-size:13px}
.fold{margin-bottom:12px}
.fold-h{width:100%;display:flex;justify-content:space-between;align-items:center;background:#fff;border:1px solid var(--line);border-radius:12px;padding:13px 15px;font-size:14px;font-weight:700;color:var(--ink);box-shadow:var(--shadow)}
.fold-b{margin-top:8px}

/* nhập chi nhanh */
.qe-row{display:grid;grid-template-columns:1fr 96px 30px;gap:7px;align-items:center;margin-bottom:8px}
.qe-row input{border:1.5px solid var(--line);border-radius:10px;padding:10px;font-size:15px;font-family:inherit;outline:none;width:100%}
.qe-row input:focus{border-color:var(--teal);box-shadow:var(--ring)}
.qe-row .del{background:#fef2f2;border:none;border-radius:8px;color:var(--err);font-size:16px;height:38px}
.qe-cat{font-size:10px;font-weight:700;color:var(--muted);margin:-4px 0 8px 2px}

.chip{display:inline-flex;align-items:center;gap:5px;font-size:11.5px;font-weight:700;padding:4px 9px;border-radius:20px;color:#fff}
.c-COGS{background:var(--cogs)} .c-GA{background:var(--ga)} .c-Investment{background:var(--inv)} .c-Labor{background:var(--labor)} .c-Marketing{background:var(--mkt)} .c-Utilities{background:#06b6d4}
.pill{font-size:11px;font-weight:600;padding:3px 8px;border-radius:20px}
.pill.ok{background:#dcfce7;color:#166534} .pill.warn{background:#fef3c7;color:#92400e} .pill.err{background:#fee2e2;color:#991b1b}

.prod-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.prod{background:#fff;border:1.5px solid var(--line);border-radius:13px;padding:12px;text-align:left;transition:.1s;position:relative}
.prod.on{border-color:var(--teal);background:#f0fdfa}
.prod .n{font-weight:700;font-size:13.5px;margin-bottom:6px}
/* cảnh báo hóa đơn lỗi + mức độ vi phạm (giao diện chi nhánh) */
.warnbar{display:flex;align-items:center;gap:10px;background:#fff7ed;border:1.5px solid #fdba74;color:#9a3412;border-radius:12px;padding:12px 14px;margin-bottom:12px;cursor:pointer;box-shadow:var(--shadow)}
.warnbar.sev{background:#fef2f2;border-color:#fca5a5;color:#991b1b}
.warnbar b{font-size:13.5px}
.viom{display:flex;gap:7px;margin:4px 0 6px}
.viodot{flex:1;height:10px;border-radius:6px;transition:.25s}
.violabels{display:flex;justify-content:space-between;font-size:10px;color:var(--muted)}
.prod-top{display:flex;align-items:center;justify-content:space-between;gap:6px}
.prod-emoji{width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:22px;flex-shrink:0}
.prod .qtybar{display:flex;align-items:center;gap:8px;margin-top:8px}
.qbtn{width:32px;height:32px;border-radius:8px;border:1px solid var(--line);background:#fff;font-size:18px;font-weight:700;line-height:1;color:var(--teal)}
.qval{flex:1;text-align:center;font-weight:700}

.list-item{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}
.list-item:last-child{border-bottom:none}
.list-item[onclick]{border-radius:10px;transition:background .12s}
.list-item[onclick]:active{background:#f6f8fa}
.li-ic{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.li-main{flex:1;min-width:0}
.li-main .t{font-weight:600;font-size:14px}
.li-main .s{font-size:12px;color:var(--muted)}
.li-amt{font-weight:700;font-size:14px;text-align:right;white-space:nowrap}

.kpi-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:14px}
.kpi{background:#fff;border-radius:20px;padding:16px;box-shadow:0 6px 22px rgba(11,18,32,.06),0 2px 6px rgba(11,18,32,.04);border:1px solid var(--hair)}
.kpi .v{font-size:22px;font-weight:800;letter-spacing:-.5px}
.kpi .l{font-size:11.5px;color:var(--muted);margin-top:2px}
.kpi .d{font-size:11px;font-weight:600;margin-top:4px}
.up{color:var(--err)} .down{color:var(--ok)}

.bar-line{margin:11px 0}
.bar-line .top{display:flex;justify-content:space-between;font-size:13px;margin-bottom:5px}
.bar-line .top b{font-weight:700}
.track{height:9px;background:var(--bg);border-radius:6px;overflow:hidden}
.track>span{display:block;height:100%;border-radius:6px}
.legend{display:flex;flex-wrap:wrap;gap:10px 16px;margin-top:12px;justify-content:center}
.legend .lg{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted)}
.legend .sw{width:11px;height:11px;border-radius:3px}

.alert{display:flex;gap:11px;padding:12px;border-radius:12px;margin-bottom:10px;align-items:flex-start}
.alert.warn{background:#fffbeb;border:1px solid #fde68a}
.alert.err{background:#fef2f2;border:1px solid #fecaca}
.alert .ai{font-size:20px;flex-shrink:0}
.alert .t{font-weight:700;font-size:13.5px}
.alert .s{font-size:12px;color:var(--muted);margin-top:2px}

.nav{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:480px;background:rgba(255,255,255,.92);backdrop-filter:saturate(1.8) blur(12px);-webkit-backdrop-filter:saturate(1.8) blur(12px);border-top:1px solid var(--line);box-shadow:0 -4px 20px rgba(15,23,42,.06);display:flex;padding:8px 6px calc(10px + env(safe-area-inset-bottom));gap:3px;z-index:30}
.nav button{flex:1;border:none;background:none;display:flex;flex-direction:column;align-items:center;gap:3px;padding:8px 0 7px;color:var(--muted);font-size:10.5px;font-weight:600;border-radius:14px;transition:.15s;position:relative}
.nav button .ni{font-size:20px;transition:.15s}
.nav button.on{color:#fff;background:linear-gradient(135deg,var(--teal-l) 0%,var(--teal) 60%,var(--teal-d) 100%);box-shadow:0 6px 16px rgba(13,148,136,.42)}
.nav button.on .ni{transform:translateY(-1px) scale(1.06)}
.nav button:not(.on):active{background:#f0fdfa}

.toast{position:fixed;bottom:84px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;padding:12px 18px;border-radius:12px;font-size:13.5px;font-weight:600;z-index:60;opacity:0;pointer-events:none;transition:.25s;display:flex;align-items:center;gap:8px;max-width:88%;box-shadow:0 8px 24px rgba(0,0,0,.25)}
.toast.show{opacity:1;bottom:100px}

.modal-bg{position:fixed;inset:0;background:rgba(15,23,42,.5);z-index:50;display:flex;align-items:flex-end;justify-content:center}
.modal{background:#fff;width:100%;max-width:480px;border-radius:20px 20px 0 0;padding:20px 18px calc(26px + env(safe-area-inset-bottom));animation:up .25s;max-height:88dvh;overflow:auto}
@keyframes up{from{transform:translateY(100%)}to{transform:none}}
.modal h3{margin:0 0 4px}
.modal .mrow{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px}
.modal .mrow b{font-weight:700}

.seg{display:flex;gap:8px;flex-wrap:wrap}
.seg button{border:1.5px solid var(--line);background:#fff;border-radius:20px;padding:8px 13px;font-size:12.5px;font-weight:600;color:var(--muted)}
.seg button.on{border-color:var(--teal);background:var(--teal);color:#fff}
.empty{text-align:center;color:var(--muted);padding:30px 10px;font-size:13px}
.loading{padding:60px 20px;text-align:center;color:var(--muted)}
.loading::before{content:"";display:block;width:26px;height:26px;margin:0 auto 12px;border:3px solid var(--line);border-top-color:var(--teal);border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
button:focus-visible,.key:focus-visible{outline:2px solid var(--teal);outline-offset:2px}

/* ---- kiểm kê tài sản ---- */
.inv-row{display:flex;align-items:center;gap:10px;padding:6px 0;border-bottom:1px solid var(--line)}
.inv-row:last-child{border-bottom:none}
input.f.inv-qty{width:76px;flex-shrink:0;text-align:center;padding:9px 6px}
details.inv-det{padding:0;overflow:hidden}
details.inv-det>summary{padding:14px;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:8px}
details.inv-det>summary::-webkit-details-marker{display:none}
details.inv-det[open]>summary{border-bottom:1px solid var(--line)}
.inv-det .inv-body{padding:2px 14px 14px}
canvas{max-width:100%}