:root {
  --bg: #202836; --panel: #151a23; --card: #2f3b50; --bd: #3a4d68;
  --tx: #ededed; --mut: #9ab0cc; --pri: #4a7dbf; --pri-h: #3d6aa8;
  --red: #f87171; --grn: #4ade80; --amb: #fbbf24;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body { margin: 0; background: var(--bg); color: var(--tx); font: 14px/1.45 Inter, system-ui, 'Segoe UI', Arial, sans-serif; }
::-webkit-scrollbar { width: 6px; height: 6px; } ::-webkit-scrollbar-track { background: var(--panel); }
::-webkit-scrollbar-thumb { background: var(--pri); border-radius: 9999px; }

.shell { display: flex; height: 100vh; }
aside { width: 240px; flex-shrink: 0; background: var(--panel); border-right: 1px solid var(--card); display: flex; flex-direction: column; padding: 12px; }
.brand { display: flex; align-items: center; gap: 12px; padding: 0 8px 18px; margin-bottom: 14px; border-bottom: 1px solid var(--card); }
.brand img { width: 40px; height: 40px; object-fit: contain; border-radius: 8px; background: #fff; padding: 2px; }
.brand span { font-weight: 700; font-size: 18px; letter-spacing: .1em; }
nav { flex: 1; }
nav a { display: block; padding: 10px 12px; border-radius: 8px; font-size: 14px; font-weight: 500; color: var(--mut); text-decoration: none; margin-bottom: 2px; }
nav a:hover { background: var(--card); color: var(--tx); }
nav a.on { background: #2563eb; color: #fff; }
.user { border-top: 1px solid var(--card); padding: 12px 8px 0; margin-top: 12px; display: flex; justify-content: space-between; align-items: center; color: var(--mut); }
.user button { background: none; border: 0; color: var(--mut); cursor: pointer; font: inherit; }
.user button:hover { color: var(--red); }
main { flex: 1; overflow: auto; padding: 24px; }
h1.title { font-size: 20px; margin: 0 0 16px; }

.card { background: var(--card); border: 1px solid var(--bd); border-radius: 8px; padding: 16px; margin-bottom: 16px; box-shadow: 0 1px 3px rgba(0,0,0,.3); }
.row { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; }
label.f { display: flex; flex-direction: column; gap: 4px; font-size: 12px; font-weight: 600; color: var(--mut); }
input, select { font: inherit; font-size: 14px; background: var(--panel); color: var(--tx); border: 1px solid var(--bd); border-radius: 4px; padding: 7px 9px; }
input:focus, select:focus { outline: 2px solid var(--pri); outline-offset: 0; }
input[type=number] { width: 100px; }
button.btn { font: inherit; font-size: 14px; font-weight: 500; background: var(--pri); color: #fff; border: 0; border-radius: 4px; padding: 8px 16px; cursor: pointer; }
button.btn:hover { background: var(--pri-h); }
button.btn:disabled { opacity: .6; cursor: default; }
button.sec { background: var(--card); border: 1px solid var(--bd); color: var(--tx); }
button.sec:hover { background: var(--bd); }
button.tab { font: inherit; background: var(--panel); color: var(--mut); border: 1px solid var(--bd); border-radius: 6px; padding: 7px 14px; cursor: pointer; }
button.tab.on { background: var(--pri); border-color: var(--pri); color: #fff; }

.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-bottom: 16px; }
.kpi { background: var(--card); border: 1px solid var(--bd); border-radius: 8px; padding: 14px; }
.kpi small { display: block; color: var(--mut); font-size: 11px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; }
.kpi b { font-size: 24px; }

.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.wrap { max-height: 62vh; overflow: auto; border: 1px solid var(--bd); border-radius: 6px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { background: var(--panel); color: var(--tx); font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; padding: 8px 10px; text-align: left; position: sticky; top: 0; cursor: pointer; white-space: nowrap; }
td { padding: 7px 10px; border-bottom: 1px solid var(--bd); white-space: nowrap; }
tbody tr:hover { background: var(--bd); }
td.r, th.r { text-align: right; }
td.why { white-space: normal; color: var(--mut); min-width: 300px; }
.tag { padding: 2px 8px; border-radius: 10px; font-size: 11px; font-weight: 600; color: #111; }
.tag.Ruptura { background: var(--red); } .tag.Alta { background: var(--amb); } .tag.Normal { background: var(--grn); }
.mut { color: var(--mut); font-size: 12px; }
.err { color: var(--red); }
.exp h3 { margin: 16px 0 4px; } .exp li { color: var(--mut); margin: 3px 0; }

/* grade do produto */
table.grade th, table.grade td { text-align: center; }
table.grade th:first-child, table.grade td:first-child { text-align: left; }
table.grade th { cursor: default; }
td.z { color: #52627d; } td.rup { background: rgba(248,113,113,.18); color: var(--red); font-weight: 600; }
td b { font-size: 15px; } td small { display: block; color: var(--mut); font-size: 11px; }
tr.cd td { background: rgba(74,222,128,.10); font-weight: 600; }
tr.tot td { background: var(--panel); font-weight: 700; }
td.sel, th.sel { outline: none; }
th.sel { background: rgba(251,191,36,.25); color: var(--amb); box-shadow: inset 0 -3px 0 var(--amb); }
table.grade .wrap, .wrap.gr { max-height: none; }
table.grade th:first-child, table.grade td:first-child { position: sticky; left: 0; z-index: 1; background: var(--card); }
table.grade th:first-child { background: var(--panel); z-index: 2; }
table.grade tr.cd td:first-child { background: #28483f; }
table.grade tr.tot td:first-child { background: var(--panel); }
table.grade tbody tr:hover td { background: rgba(255,255,255,.04); }
table.grade th:last-child, table.grade td:last-child { border-left: 2px solid var(--bd); }
td.neg { background: rgba(251,191,36,.15); color: var(--amb); font-weight: 600; }
td.low b { color: var(--amb); }
.kpis { display: flex; flex-wrap: wrap; gap: 10px; margin: 12px 0; }
.kpi { background: var(--panel); border: 1px solid var(--bd); border-radius: 8px; padding: 8px 14px; min-width: 130px; }
.kpi b { display: block; font-size: 20px; } .kpi span { color: var(--mut); font-size: 11px; text-transform: uppercase; letter-spacing: .04em; }
.kpi.bad b { color: var(--red); }
.legend { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 10px; font-size: 12px; color: var(--mut); }
.legend i { display: inline-block; width: 12px; height: 12px; border-radius: 3px; vertical-align: -2px; margin-right: 5px; }

/* login */
.login { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.login .box { width: 100%; max-width: 384px; background: var(--card); border: 1px solid var(--bd); border-radius: 16px; padding: 32px; box-shadow: 0 25px 50px -12px rgba(0,0,0,.5); }
.login h1 { text-align: center; margin: 0; font-size: 36px; font-weight: 700; letter-spacing: .1em; }
.login p.sub { text-align: center; color: var(--mut); margin: 8px 0 28px; font-size: 14px; }
.login label.f { margin-bottom: 14px; } .login input { width: 100%; }
.login .chk { flex-direction: row; align-items: center; gap: 8px; font-weight: 400; margin: 4px 0 14px; cursor: pointer; }
.login .chk input { width: auto; }
.login button { width: 100%; padding: 10px; }
.login .err { text-align: center; font-size: 12px; margin-bottom: 10px; }