/* ZAVAK — Cổng số liệu & Báo cáo nội bộ
   Tông đỏ theo nhận diện thương hiệu. Có cả chế độ sáng và tối. */

:root{
  --brand:#C8102E; --brand-dark:#9E0B1C; --brand-soft:#F7D9DD;
  --ink:#1A1A1A; --ink-2:#4A4A4A; --ink-3:#767676;
  --bg:#FAF8F8; --card:#FFFFFF; --line:#E6E2E3; --line-2:#F0ECED;
  --ok-bg:#E3F1E6; --ok-ink:#1E5B2C;
  --warn-bg:#FFF6E0; --warn-ink:#7A5600;
  --err-bg:#FDE7EA; --err-ink:#8E0A19;

  /* biểu đồ: một sắc độ cho cột, dải đậm dần cho mức nguy hiểm */
  --chart-hue:#C8102E;
  --chart-line:#3F3F46;
  --sev-1:#F0A8B2; --sev-2:#DC5F72; --sev-3:#C8102E; --sev-4:#7E0715;
  --grid:#EDE8E9; --axis:#D6D0D1;
  --surface:#FFFFFF;
}

@media (prefers-color-scheme: dark){
  :root{
    --brand:#F2637A; --brand-dark:#FF8A9B; --brand-soft:#3A1A20;
    --ink:#F2EFEF; --ink-2:#C9C3C4; --ink-3:#9B9496;
    --bg:#141112; --card:#1D1919; --line:#332D2E; --line-2:#262121;
    --ok-bg:#16301C; --ok-ink:#8FD8A2;
    --warn-bg:#33280C; --warn-ink:#F0C765;
    --err-bg:#3A1418; --err-ink:#FF9FAC;

    --chart-hue:#E8455F;
    --chart-line:#B8B0B2;
    --sev-1:#6E2A34; --sev-2:#A63449; --sev-3:#E8455F; --sev-4:#FF8A9B;
    --grid:#2A2425; --axis:#3D3637;
    --surface:#1D1919;
  }
}

*{box-sizing:border-box}
html,body{margin:0}
body{
  background:var(--bg); color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  font-size:15px; line-height:1.6; -webkit-font-smoothing:antialiased;
}
a{color:var(--brand-dark)}
.wrap{max-width:1120px; margin:0 auto; padding:0 18px}

/* ---------- thanh trên ---------- */
header.top{background:var(--brand-dark); color:#fff}
@media (prefers-color-scheme: dark){ header.top{background:#2A1216} }
.topbar{display:flex; align-items:center; gap:14px; padding:12px 0; flex-wrap:wrap}
.logo{font-weight:800; letter-spacing:3px; font-size:20px; border:2px solid #fff;
      padding:2px 10px; line-height:1.2; color:#fff; text-decoration:none}
.brandtext{font-size:13px; opacity:.9; line-height:1.3}
.brandtext b{display:block; font-size:15px; opacity:1}
.who{margin-left:auto; font-size:13px; text-align:right}
.who a{color:#fff; text-decoration:underline; opacity:.9}

nav.main{background:var(--card); border-bottom:1px solid var(--line);
         position:sticky; top:0; z-index:20}
nav.main .wrap{display:flex; gap:4px; overflow-x:auto}
nav.main a{
  padding:12px 14px; font-size:14px; font-weight:600; color:var(--ink-2);
  text-decoration:none; border-bottom:3px solid transparent; white-space:nowrap;
}
nav.main a:hover{color:var(--brand-dark); background:var(--line-2)}
nav.main a.on{color:var(--brand-dark); border-bottom-color:var(--brand)}

main{padding:22px 0 60px}
h1{font-size:23px; margin:0 0 6px; line-height:1.3}
h1 small{font-weight:400; color:var(--ink-3); font-size:14px; display:block; margin-top:2px}
h2{font-size:13px; letter-spacing:1.4px; text-transform:uppercase; color:var(--brand);
   margin:26px 0 12px; padding-bottom:7px; border-bottom:2px solid var(--brand-soft)}
h3{font-size:16px; margin:0 0 8px}
p.lead{color:var(--ink-2); margin:0 0 16px; max-width:760px}

/* ---------- thông báo ---------- */
.flash{padding:11px 16px; border-radius:8px; margin:0 0 16px; font-size:14px}
.flash.ok{background:var(--ok-bg); color:var(--ok-ink)}
.flash.err{background:var(--err-bg); color:var(--err-ink)}
.flash.warn{background:var(--warn-bg); color:var(--warn-ink)}
.flash ul{margin:6px 0 0 18px; padding:0}

/* ---------- thẻ ---------- */
.card{background:var(--card); border:1px solid var(--line); border-radius:10px; padding:18px}
.card + .card{margin-top:14px}
.grid{display:grid; gap:14px}
.g2{grid-template-columns:repeat(auto-fit,minmax(330px,1fr))}
/* g2b: tối đa 2 cột ở màn hình rộng — dùng cho thẻ có bảng chữ dài */
.g2b{grid-template-columns:repeat(auto-fit,minmax(440px,1fr))}
.grid.top{align-items:start}
.g3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}

/* ---------- ô số liệu nổi ---------- */
.tile{background:var(--card); border:1px solid var(--line); border-radius:10px; padding:16px 18px}
.tile .lab{font-size:12.5px; color:var(--ink-3); text-transform:uppercase; letter-spacing:.6px}
.tile .val{font-size:26px; font-weight:800; line-height:1.25; margin-top:4px;
           font-variant-numeric:tabular-nums}
.tile .sub{font-size:12.5px; color:var(--ink-3); margin-top:2px}
.tile.hi{border-left:4px solid var(--brand)}
.tile.danger{border-left:4px solid var(--sev-4)}
.tile.danger .val{color:var(--brand-dark)}

/* ---------- bảng ---------- */
.tblwrap{overflow-x:auto; border:1px solid var(--line); border-radius:10px; background:var(--card)}
table{width:100%; border-collapse:collapse; font-size:14px}
th{background:var(--brand); color:#fff; text-align:left; padding:10px 12px;
   font-size:12.5px; font-weight:700; white-space:nowrap}
@media (prefers-color-scheme: dark){ th{background:#5E1220} }
td{padding:9px 12px; border-top:1px solid var(--line); vertical-align:top}
tbody tr:hover td{background:var(--line-2)}
td.n, th.n{text-align:right; font-variant-numeric:tabular-nums; white-space:nowrap}
td.small{font-size:13px; color:var(--ink-2)}
tfoot td{font-weight:700; border-top:2px solid var(--brand-soft); background:var(--line-2)}

.pill{display:inline-block; font-size:12px; font-weight:700; padding:2px 9px;
      border-radius:12px; white-space:nowrap}
.pill.ok{background:var(--ok-bg); color:var(--ok-ink)}
.pill.no{background:var(--err-bg); color:var(--err-ink)}
.pill.wait{background:var(--warn-bg); color:var(--warn-ink)}
.pill.mute{background:var(--line-2); color:var(--ink-3)}

/* ---------- biểu mẫu ---------- */
label{display:block; font-size:13px; font-weight:600; color:var(--ink-2); margin-bottom:4px}
label .req{color:var(--brand)}
input[type=text],input[type=email],input[type=password],input[type=date],
input[type=number],select,textarea,input[type=file]{
  width:100%; padding:9px 11px; font-size:14px; font-family:inherit; color:var(--ink);
  background:var(--card); border:1px solid var(--line); border-radius:7px;
}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand); outline-offset:-1px}
.hint{font-size:12.5px; color:var(--ink-3); margin-top:3px}
.field{margin-bottom:14px}
.row{display:grid; gap:12px; grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
fieldset{border:1px solid var(--line); border-radius:9px; padding:14px; margin:0 0 14px}
legend{font-size:13px; font-weight:700; color:var(--brand-dark); padding:0 6px}

.btn{display:inline-block; background:var(--brand); color:#fff; font-weight:700; font-size:14px;
     padding:10px 18px; border:0; border-radius:7px; cursor:pointer; text-decoration:none;
     font-family:inherit}
.btn:hover{background:var(--brand-dark)}
.btn.ghost{background:transparent; color:var(--brand-dark); border:1.5px solid var(--brand)}
.btn.ghost:hover{background:var(--brand-soft)}
.btn.sm{padding:5px 11px; font-size:12.5px}
.btn.link{background:none; color:var(--brand-dark); text-decoration:underline; padding:0}
.btn[disabled]{opacity:.5; cursor:not-allowed}
.actions{display:flex; gap:10px; align-items:center; flex-wrap:wrap; margin-top:8px}

/* ---------- biểu đồ ---------- */
.chart{width:100%; height:auto; display:block; overflow:visible}
.chart .c-lab{font-size:12.5px; fill:var(--ink-2)}
.chart .c-val{font-size:12.5px; font-weight:700; fill:var(--ink)}
.chart .c-zero{fill:var(--ink-3); font-weight:400}
.chart .c-ax{font-size:11.5px; fill:var(--ink-3)}
.chart .axis{stroke:var(--axis); stroke-width:1}
.chart .grid{stroke:var(--grid); stroke-width:1}
.chart .bar path,.chart .dot circle{transition:opacity .12s}
.chart .bar:hover path{opacity:.75}
.chart .dot:hover circle{opacity:.75}
.chart .line-exp{fill:none; stroke:var(--chart-line); stroke-width:2;
                 stroke-linejoin:round; stroke-linecap:round}
.chart .mk-exp{fill:var(--chart-line); stroke:var(--surface); stroke-width:2}
.chart-empty{padding:30px 16px; text-align:center; color:var(--ink-3); font-size:14px;
             border:1px dashed var(--line); border-radius:9px}
.legend{display:flex; gap:18px; margin-top:8px; font-size:13px; color:var(--ink-2)}
.legend .lg{display:flex; align-items:center; gap:7px}
.legend i{display:inline-block}
.legend .sw-bar{width:13px; height:13px; border-radius:3px; background:var(--chart-hue)}
.legend .sw-line{width:18px; height:0; border-top:2px solid var(--chart-line); position:relative}
.legend .sw-line:after{content:""; position:absolute; left:5px; top:-4px; width:8px; height:8px;
                       border-radius:50%; background:var(--chart-line)}

/* ---------- thanh công cụ báo cáo ---------- */
.toolbar{
  display:flex; justify-content:space-between; align-items:flex-end;
  gap:16px; flex-wrap:wrap; padding:14px 18px; margin-top:16px;
}
.toolbar .quick{display:flex; gap:6px; align-items:center; flex-wrap:wrap}
.toolbar .qlab{
  font-size:11.5px; font-weight:700; letter-spacing:.8px; text-transform:uppercase;
  color:var(--ink-3); margin-right:4px;
}
.toolbar .range{display:flex; gap:10px; align-items:flex-end; flex-wrap:wrap; margin:0}
.toolbar .range label{margin-bottom:3px; font-size:12px; white-space:nowrap}
.toolbar .range input[type=date]{width:150px}
.toolbar .btn{white-space:nowrap}

/* ---------- linh tinh ---------- */
.muted{color:var(--ink-3)}
.small{font-size:13px}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace; font-size:13px}
.note{background:var(--warn-bg); color:var(--warn-ink); border-radius:8px; padding:12px 15px;
      font-size:13.5px; margin:14px 0}
.note b{display:block; margin-bottom:2px}
.sep{height:1px; background:var(--line); margin:22px 0}
.right{text-align:right}
.nowrap{white-space:nowrap}
.center{text-align:center}
.stack>*+*{margin-top:10px}
footer.bot{border-top:1px solid var(--line); background:var(--card); padding:18px 0;
           font-size:12.5px; color:var(--ink-3)}

/* ---------- trang đăng nhập ---------- */
.login{max-width:400px; margin:8vh auto; padding:0 18px}
.login .card{padding:26px}
.login .logo{display:inline-block; color:var(--brand-dark); border-color:var(--brand);
             margin-bottom:14px}

@media (max-width:640px){
  h1{font-size:20px}
  .tile .val{font-size:22px}
  .who{margin-left:0; text-align:left; width:100%}
}