:root {
  --navy: #0b1430; --navy-2: #16234f; --gold: #f5b301; --bg: #f4f6fb; --card: #fff; --line: #e3e7ef;
  --text: #1f2937; --muted: #6b7385; --primary: #0d5fd8; --bad: #c5221f; --bad-bg: #fde8e6; --good: #137333; --good-bg: #e6f4ea;
  --warn: #b45309; --warn-bg: #fff4e0;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
[hidden] { display: none !important; }
button { font: inherit; cursor: pointer; }
.muted { color: var(--muted); }
.small { font-size: 13px; padding: 0 16px; }

/* Đăng nhập */
#login { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px 16px; background: var(--navy); }
.login-box { width: 100%; max-width: 360px; text-align: center; color: #fff; }
.login-logo { width: 72px; height: 72px; }
.login-box h1 { margin: 8px 0 0; font-size: 26px; letter-spacing: 2px; }
.brand-sub { margin: 2px 0 24px; color: var(--gold); font-size: 12px; letter-spacing: 3px; font-weight: 600; }
#login-form { background: #fff; color: var(--text); border-radius: 14px; padding: 20px; text-align: left; display: flex; flex-direction: column; gap: 14px; }
#login-form label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; font-weight: 600; color: #3a4357; }
#login-form input { height: 46px; border: 1px solid #d5dbe6; border-radius: 10px; padding: 0 12px; font-size: 16px; }
#login-form input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(13,95,216,.15); }
.err { margin: 0; color: var(--bad); font-size: 14px; }
.primary, .ghost { height: 44px; padding: 0 18px; border-radius: 10px; font-weight: 600; }
.primary { background: var(--primary); color: #fff; border: 0; }
.primary:disabled { opacity: .6; }
.ghost { background: #fff; color: var(--text); border: 1px solid #d5dbe6; }

/* Khung */
#app { max-width: 640px; margin: 0 auto; padding-bottom: calc(76px + env(safe-area-inset-bottom)); }
.top { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between;
  padding: calc(10px + env(safe-area-inset-top)) 16px 10px; background: var(--navy); color: #fff; border-bottom: 2px solid var(--gold); }
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { width: 34px; height: 34px; }
.brand b { display: block; letter-spacing: 1.5px; }
.brand small { display: block; color: #aab6d6; font-size: 12px; }
.icon-btn { width: 40px; height: 40px; border-radius: 10px; border: 0; background: rgba(255,255,255,.1); color: #fff; font-size: 20px; }
.icon-btn.spin { animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.view { padding: 12px 16px; display: flex; flex-direction: column; gap: 12px; }

.tabs { position: fixed; left: 0; right: 0; bottom: 0; z-index: 5; display: flex; justify-content: center; background: #fff; border-top: 1px solid var(--line);
  padding-bottom: env(safe-area-inset-bottom); }
.tabs button { flex: 1; max-width: 213px; border: 0; background: none; padding: 8px 0 10px; color: var(--muted); font-size: 12px; display: flex; flex-direction: column; align-items: center; gap: 2px; }
.tabs button span { font-size: 20px; line-height: 1.2; }
.tabs button.on { color: var(--navy); font-weight: 700; }

/* Cảnh báo */
.alert { background: var(--warn-bg); color: var(--warn); border: 1px solid #f6d49a; border-radius: 10px; padding: 10px 12px; font-size: 14px; }
#ov-alerts:empty, #pf-alerts:empty { display: none; }
#ov-alerts, #pf-alerts { display: flex; flex-direction: column; gap: 8px; }

/* Ô số tổng */
.kpis { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.kpi { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; border-top: 3px solid #c5cbe0; }
.kpi-label { font-size: 12.5px; color: var(--muted); font-weight: 600; }
.kpi-value { font-size: 26px; font-weight: 700; color: var(--navy); line-height: 1.2; }
.kpi-sub { font-size: 12px; color: var(--muted); }
.kpi-confirm { border-top-color: #f59e0b; } .kpi-pending { border-top-color: #3b82f6; }
.kpi-chat { border-top-color: #10b981; } .kpi-returns { border-top-color: #ef4444; }
.kpi-good { border-top-color: var(--good); } .kpi-bad { border-top-color: var(--bad); } .kpi-bad .kpi-value { color: var(--bad); }
.kpi-pen { border-top-color: var(--gold); }

/* Nút lọc */
.chips { display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; margin: 0 -16px; padding: 0 16px; }
.chips::-webkit-scrollbar { display: none; }
.chip { flex: none; height: 34px; padding: 0 14px; border-radius: 17px; border: 1px solid var(--line); background: #fff; color: var(--text); font-size: 13.5px; }
.chip.on { background: var(--navy); color: #fff; border-color: var(--navy); }
.chip.warn { color: var(--bad); border-color: #f3b4ae; }
.chip.warn.on { background: var(--bad); color: #fff; border-color: var(--bad); }

/* Thẻ shop */
.list { display: flex; flex-direction: column; gap: 10px; }
.shop { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 12px; }
.shop.out { border-color: #f3b4ae; background: #fffafa; }
.shop.bad { border-left: 4px solid var(--bad); }
.shop-head { display: flex; align-items: center; gap: 10px; }
.badge { width: 30px; height: 30px; border-radius: 8px; flex: none; object-fit: contain; }
.shop-name { flex: 1; min-width: 0; }
.shop-name b { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.shop-name small { display: block; color: var(--muted); font-size: 12.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.when { flex: none; font-size: 12px; color: var(--muted); }
.out-msg { margin-top: 8px; color: var(--bad); font-size: 13.5px; font-weight: 600; }
.nums { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; margin-top: 10px; }
.num { text-align: center; background: #f6f7fb; border-radius: 8px; padding: 6px 2px; }
.num b { display: block; font-size: 17px; color: #9aa3b5; }
.num small { display: block; font-size: 11px; color: var(--muted); }
.num.has b { color: var(--navy); }
.num.n-confirm { background: #fff4e0; } .num.n-confirm b { color: #b45309; }
.num.n-chat { background: #e7f8f1; } .num.n-chat b { color: #047857; }
.num.n-returns { background: var(--bad-bg); } .num.n-returns b { color: var(--bad); }
.num.n-pending { background: #e8f0fe; } .num.n-pending b { color: #1d4ed8; }

.metrics { display: flex; flex-direction: column; gap: 6px; margin-top: 10px; }
.metric { display: grid; grid-template-columns: 1fr auto; column-gap: 8px; padding: 7px 10px; border-radius: 8px; background: #f6f7fb; font-size: 13.5px; }
.metric b { text-align: right; }
.metric small { grid-column: 1 / -1; font-size: 11.5px; color: var(--muted); }
.metric.m-bad { background: var(--bad-bg); } .metric.m-bad b { color: var(--bad); }
.metric.m-good b { color: var(--good); }
.empty { text-align: center; padding: 24px 0; }

/* Cài đặt */
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px; }
.card-title { font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.card p { margin: 0 0 12px; }
.row { display: flex; gap: 10px; flex-wrap: wrap; }
.sw { display: flex; align-items: center; gap: 10px; padding: 8px 0; font-size: 14.5px; }
.sw input { width: 20px; height: 20px; accent-color: var(--primary); }
#push-prefs { margin-bottom: 10px; }

#toast { position: fixed; left: 16px; right: 16px; bottom: calc(86px + env(safe-area-inset-bottom)); z-index: 10; max-width: 560px; margin: 0 auto;
  background: var(--navy); color: #fff; border-radius: 10px; padding: 12px 14px; font-size: 14px; box-shadow: 0 6px 20px rgba(0,0,0,.25); }