:root {
  --green-900: #1f3d2b;
  --green-700: #2e6b43;
  --green-500: #3f8f5a;
  --green-100: #e3f1e7;
  --earth: #8a5a2b;
  --bg: #f4f6f4;
  --surface: #ffffff;
  --text: #1e2a22;
  --muted: #5f6f65;
  --border: #d9e0db;
  --red: #b3261e;
  --red-bg: #fbe9e7;
  --amber: #9a6700;
  --amber-bg: #fff4d6;
  --blue: #1f5fa6;
  --blue-bg: #e6eef9;
  --ok-bg: #e3f1e7;
  --radius: 8px;
  --sidebar: 240px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
  font-size: 15px; color: var(--text); background: var(--bg); line-height: 1.45;
}
a { color: var(--green-700); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.6rem; margin: 0 0 1rem; }
h2 { font-size: 1.2rem; margin: 1.5rem 0 .6rem; }
h3 { font-size: 1rem; margin: 1rem 0 .4rem; }

/* ---- layout ---- */
.sidebar {
  position: fixed; top: 0; left: 0; bottom: 0; width: var(--sidebar);
  background: var(--green-900); color: #dfe9e2; display: flex; flex-direction: column;
  overflow-y: auto;
}
.brand { display: flex; gap: 10px; align-items: center; padding: 18px 16px 12px; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 8px; background: var(--green-500);
  color: #fff; font-weight: 700; font-size: 1.3rem; display: grid; place-items: center; flex: none;
}
.brand-name { font-weight: 700; color: #fff; }
.brand-sub { font-size: .72rem; opacity: .75; line-height: 1.2; }
.nav { list-style: none; margin: 0; padding: 0 8px; flex: 1; }
.nav-heading { font-size: .7rem; text-transform: uppercase; letter-spacing: .08em; opacity: .6; padding: 14px 10px 4px; }
.nav a { display: block; padding: 7px 10px; border-radius: 6px; color: #dfe9e2; }
.nav a:hover { background: rgba(255,255,255,.08); text-decoration: none; }
.nav a.active { background: var(--green-500); color: #fff; font-weight: 600; }
.sidebar-footer { padding: 14px 16px; border-top: 1px solid rgba(255,255,255,.12); font-size: .85rem; }
.sidebar-footer a { color: #b9d3c2; }
.user-name { font-weight: 600; color: #fff; }
.user-role { opacity: .7; margin-bottom: 6px; text-transform: capitalize; }

.content { margin-left: var(--sidebar); padding: 24px 32px 48px; max-width: 1400px; }
.content.no-nav { margin-left: 0; max-width: none; }

/* ---- page header ---- */
.page-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 16px; flex-wrap: wrap; }
.page-header h1 { margin: 0; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ---- cards ---- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; margin-bottom: 20px; }
.card h2:first-child, .card h3:first-child { margin-top: 0; }
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 1000px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }

.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-bottom: 20px; }
.kpi { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; }
.kpi .label { font-size: .8rem; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.kpi .value { font-size: 1.8rem; font-weight: 700; margin-top: 2px; }
.kpi.warn .value { color: var(--red); }
.kpi a { color: inherit; }

/* ---- tables ---- */
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); background: #fafbfa; }
tr:hover td { background: #f7faf8; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
td.center, th.center { text-align: center; }
.table-wrap { overflow-x: auto; }
.empty { color: var(--muted); padding: 20px; text-align: center; }
tr.low td { background: var(--red-bg); }
tr.inactive td { color: var(--muted); }

/* ---- badges ---- */
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: .75rem; font-weight: 600; }
.badge-red { background: var(--red-bg); color: var(--red); }
.badge-amber { background: var(--amber-bg); color: var(--amber); }
.badge-green { background: var(--ok-bg); color: var(--green-700); }
.badge-blue { background: var(--blue-bg); color: var(--blue); }
.badge-grey { background: #eceff0; color: var(--muted); }
.grade-A { color: var(--green-700); font-weight: 700; }
.grade-B { color: var(--green-500); font-weight: 600; }
.grade-C { color: var(--amber); font-weight: 600; }
.grade-D { color: var(--earth); font-weight: 600; }
.grade-F { color: var(--red); font-weight: 700; }

/* ---- forms ---- */
form.inline { display: inline; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 20px; }
@media (max-width: 800px) { .form-grid { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 4px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: .82rem; font-weight: 600; color: var(--muted); }
.field .hint { font-size: .78rem; color: var(--muted); }
input[type=text], input[type=number], input[type=date], input[type=password], input[type=email],
select, textarea {
  font: inherit; padding: 7px 9px; border: 1px solid var(--border); border-radius: 6px; background: #fff; width: 100%;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--green-500); outline-offset: 0; border-color: var(--green-500); }
textarea { min-height: 70px; resize: vertical; }
input.score { width: 74px; text-align: right; padding: 4px 6px; }
input.narrow { width: 110px; }
.check { display: flex; align-items: center; gap: 8px; }
.check input { width: auto; }
.form-actions { margin-top: 18px; display: flex; gap: 10px; align-items: center; }

.filters { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; margin-bottom: 14px; }
.filters .field { min-width: 140px; }
.filters input[type=text] { min-width: 220px; }

/* ---- buttons ---- */
.btn {
  display: inline-block; font: inherit; font-weight: 600; padding: 7px 14px; border-radius: 6px; cursor: pointer;
  border: 1px solid var(--green-700); background: var(--green-700); color: #fff; text-decoration: none; line-height: 1.3;
}
.btn:hover { background: var(--green-900); border-color: var(--green-900); text-decoration: none; }
.btn-secondary { background: #fff; color: var(--green-700); }
.btn-secondary:hover { background: var(--green-100); color: var(--green-900); }
.btn-danger { background: #fff; color: var(--red); border-color: var(--red); }
.btn-danger:hover { background: var(--red-bg); }
.btn-sm { padding: 4px 10px; font-size: .82rem; }

/* ---- flash ---- */
.flash { padding: 10px 14px; border-radius: 6px; margin-bottom: 14px; border: 1px solid transparent; }
.flash-success { background: var(--ok-bg); color: var(--green-900); border-color: #bcdcc6; }
.flash-error { background: var(--red-bg); color: var(--red); border-color: #efb8b3; }
.flash-info { background: var(--blue-bg); color: var(--blue); border-color: #b9cdea; }

/* ---- login ---- */
.login-wrap { min-height: 100vh; display: grid; place-items: center; background: linear-gradient(160deg, var(--green-900), var(--green-700)); }
.login-card { background: #fff; padding: 32px; border-radius: 12px; width: 360px; box-shadow: 0 20px 50px rgba(0,0,0,.25); }
.login-card .brand { padding: 0 0 16px; }
.login-card .brand-name, .login-card .brand-sub { color: var(--text); }
.login-card .field { margin-bottom: 12px; }
.login-card .btn { width: 100%; margin-top: 6px; }

/* ---- misc ---- */
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.mono { font-family: Consolas, monospace; }
.mt { margin-top: 16px; }
.dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px 18px; font-size: .92rem; }
.dl dt { color: var(--muted); }
.dl dd { margin: 0; }
.bar { height: 8px; background: #e6ebe7; border-radius: 4px; overflow: hidden; }
.bar > span { display: block; height: 100%; background: var(--green-500); }
.bar > span.warn { background: var(--red); }
.section-tabs { display: flex; gap: 6px; border-bottom: 1px solid var(--border); margin-bottom: 16px; }
.section-tabs a { padding: 8px 14px; border-radius: 6px 6px 0 0; color: var(--muted); }
.section-tabs a.active { background: var(--surface); border: 1px solid var(--border); border-bottom-color: var(--surface); color: var(--text); font-weight: 600; margin-bottom: -1px; }
.doc { max-width: 860px; }
.doc h1 { margin-top: 0; }
.doc h2 { border-bottom: 1px solid var(--border); padding-bottom: 4px; }
.doc code { background: #eef2ef; padding: 1px 5px; border-radius: 4px; font-size: .9em; }
.doc pre { background: #1f2a22; color: #e8efe9; padding: 12px; border-radius: 6px; overflow-x: auto; }
.doc pre code { background: none; color: inherit; padding: 0; }
.doc table { margin: 10px 0; }
.doc img { max-width: 100%; }
.doc .toc { background: #fafbfa; border: 1px solid var(--border); padding: 10px 24px; border-radius: 6px; font-size: .9rem; }
.doc .toc ul { margin: 4px 0; padding-left: 18px; }
@media print {
  .sidebar, .actions, .filters, .btn, .flash { display: none !important; }
  .content { margin: 0; padding: 0; }
  .card { border: none; padding: 0; }
}