:root {
  --orange: #E8730C;
  --orange-soft: rgba(232, 115, 12, .10);
  --brown: #6B4A2B;
  --green: #2E7D32;
  --green-soft: rgba(46, 125, 50, .12);
  --red: #C62828;
  --red-soft: rgba(198, 40, 40, .12);
  --blue: #1565C0;
  --bg: #FCFAF7;
  --surface: #FFFFFF;
  --line: #ECE6DE;
  --muted: #8A8178;
  --text: #2C2420;
  --radius: 14px;
  --shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  font-size: 14px;
}
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.error { color: var(--red); font-size: 13px; min-height: 16px; }
.center { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
button { font: inherit; cursor: pointer; }

/* ---------- Auth ---------- */
.auth-card { width: min(380px, 92vw); }
.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px;
}
.brand { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.brand.small { margin: 0; }
.logo {
  width: 44px; height: 44px; border-radius: 12px; flex: 0 0 auto;
  background: var(--orange); color: #fff; font-weight: 800;
  display: grid; place-items: center; letter-spacing: .5px;
}
.brand h1 { font-size: 18px; margin: 0; color: var(--brown); }
form label { display: block; font-size: 13px; color: var(--brown); font-weight: 600; margin-top: 12px; }
input, select, textarea {
  width: 100%; margin-top: 6px; padding: 10px 12px; font: inherit;
  border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--orange-soft); border-color: var(--orange); }
button.primary, #login-btn {
  width: 100%; margin-top: 18px; padding: 11px; border: none; border-radius: 10px;
  background: var(--orange); color: #fff; font-weight: 700;
}
button.primary { width: auto; margin: 0; padding: 9px 16px; }
button.primary:disabled { opacity: .6; cursor: default; }
button.ghost {
  background: transparent; border: 1px solid var(--line); border-radius: 9px;
  padding: 6px 12px; color: var(--brown); font-weight: 600;
}
button.ghost:hover { background: var(--orange-soft); }
button.mini {
  border: 1px solid var(--line); background: #fff; border-radius: 8px;
  padding: 5px 10px; font-size: 12px; font-weight: 600; color: var(--brown);
}
button.mini.ok { color: var(--green); border-color: var(--green-soft); }
button.mini.ok:hover { background: var(--green-soft); }
button.mini.danger { color: var(--red); border-color: var(--red-soft); }
button.mini.danger:hover { background: var(--red-soft); }
button.mini:hover { background: var(--orange-soft); }

/* ---------- App shell ---------- */
.shell { display: grid; grid-template-columns: 244px 1fr; min-height: 100vh; }
.sidebar {
  background: var(--surface); border-right: 1px solid var(--line);
  display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh;
}
.sidebar .brand { padding: 18px 18px 10px; }
.sidebar nav { flex: 1; overflow-y: auto; padding: 6px 10px; }
.navitem {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 10px 12px; margin: 2px 0; border: none; background: transparent;
  border-radius: 10px; color: var(--text); font-weight: 600; text-align: left;
}
.navitem .ic { width: 20px; text-align: center; }
.navitem:hover { background: var(--orange-soft); }
.navitem.active { background: var(--orange); color: #fff; }
.sidebar .foot { padding: 12px 16px; border-top: 1px solid var(--line); }
.sidebar .foot .role {
  display: inline-block; background: var(--orange-soft); color: var(--orange);
  font-weight: 700; font-size: 11px; padding: 3px 9px; border-radius: 7px;
}

.main { display: flex; flex-direction: column; min-width: 0; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px; border-bottom: 1px solid var(--line); background: var(--surface);
  position: sticky; top: 0; z-index: 5;
}
.topbar h2 { margin: 0; font-size: 17px; color: var(--brown); }
.topbar .right { display: flex; align-items: center; gap: 10px; }
.content { padding: 20px 22px 40px; overflow-x: auto; }

/* ---------- Metrics ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.section { color: var(--brown); font-size: 13px; margin: 22px 0 8px; text-transform: uppercase; letter-spacing: .04em; }
.metric {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px; box-shadow: var(--shadow); position: relative; overflow: hidden;
}
.metric.clickable { cursor: pointer; }
.metric.clickable:hover { border-color: var(--orange); }
.metric .bar { position: absolute; left: 0; top: 0; bottom: 0; width: 4px; }
.metric .value { font-size: 26px; font-weight: 800; color: var(--text); }
.metric .label { color: var(--muted); font-size: 12px; margin-top: 2px; }

/* ---------- Tables ---------- */
.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 14px; }
.toolbar input, .toolbar select { width: auto; margin: 0; min-width: 160px; }
.table { width: 100%; border-collapse: collapse; background: var(--surface); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.table th, .table td { text-align: left; padding: 11px 13px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.table th { background: #FAF6F0; color: var(--brown); font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
.table tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background: #FDFBF8; }
.actions { display: flex; gap: 6px; flex-wrap: wrap; }
.badge { display: inline-block; padding: 3px 9px; border-radius: 20px; font-size: 11px; font-weight: 700; }
.rank { font-weight: 800; color: var(--brown); }
.empty { color: var(--muted); padding: 30px; text-align: center; }

/* ---------- Modal & toast ---------- */
.modal-back {
  position: fixed; inset: 0; background: rgba(0,0,0,.4); display: grid; place-items: center;
  padding: 20px; z-index: 50;
}
.modal {
  background: var(--surface); border-radius: var(--radius); width: min(560px, 96vw);
  max-height: 88vh; overflow-y: auto; box-shadow: 0 12px 40px rgba(0,0,0,.25);
}
.modal header { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; border-bottom: 1px solid var(--line); }
.modal header h3 { margin: 0; color: var(--brown); font-size: 16px; }
.modal .body { padding: 18px 20px; }
.modal .foot { padding: 14px 20px; border-top: 1px solid var(--line); display: flex; justify-content: flex-end; gap: 10px; }
.kv { display: grid; grid-template-columns: 150px 1fr; gap: 6px 12px; font-size: 13px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; word-break: break-word; }
#toast {
  position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%);
  background: #2C2420; color: #fff; padding: 11px 18px; border-radius: 10px;
  font-size: 13px; box-shadow: 0 6px 24px rgba(0,0,0,.3); z-index: 100; max-width: 90vw;
}
#toast.ok { background: var(--green); }
#toast.err { background: var(--red); }

/* ---------- KPI dashboard ---------- */
.cols2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px; }
.panel h4 { margin: 0 0 12px; color: var(--brown); font-size: 13px; text-transform: uppercase; letter-spacing: .03em; }
.bars { display: flex; align-items: flex-end; gap: 8px; height: 150px; padding-top: 8px; }
.bars .col { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; gap: 5px; }
.bars .bkbar { width: 100%; max-width: 40px; background: var(--orange); border-radius: 6px 6px 0 0; min-height: 2px; }
.bars .blabel { font-size: 10px; color: var(--muted); }
.bars .bval { font-size: 11px; font-weight: 700; color: var(--brown); }
.distrow { display: flex; align-items: center; gap: 10px; margin: 7px 0; }
.distrow .dname { width: 92px; font-size: 12px; font-weight: 600; color: var(--brown); }
.distrow .dtrack { flex: 1; background: var(--line); border-radius: 6px; height: 14px; overflow: hidden; }
.distrow .dfill { height: 100%; border-radius: 6px; transition: width .3s; }
.distrow .dnum { width: 40px; text-align: right; font-size: 12px; font-weight: 700; color: var(--text); }
@media (max-width: 820px) { .cols2 { grid-template-columns: 1fr; } }

.spinner { width: 34px; height: 34px; border: 3px solid var(--line); border-top-color: var(--orange); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.loadrow { display: flex; align-items: center; gap: 10px; color: var(--muted); padding: 24px; }

@media (max-width: 820px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; flex-direction: row; overflow-x: auto; }
  .sidebar .brand, .sidebar .foot { display: none; }
  .sidebar nav { display: flex; }
  .navitem { white-space: nowrap; }
}