* { box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
       margin: 0; background: #0f1419; color: #e6e6e6; }
header { background: #1a1f2a; border-bottom: 1px solid #2a3142; padding: 12px 24px;
         display: flex; align-items: center; justify-content: space-between; }
header h1 { margin: 0; font-size: 18px; font-weight: 600; }
nav a { color: #8aa6d6; margin-left: 16px; text-decoration: none; font-size: 14px; }
nav a:hover { color: #fff; }
nav a.active { color: #fff; border-bottom: 2px solid #4a7bc8; padding-bottom: 4px; }
nav a.logout { margin-left: 28px; color: #d68a8a; }
main { padding: 24px; max-width: 1400px; margin: 0 auto; }
h2 { font-size: 22px; margin: 24px 0 12px; }
h3 { font-size: 16px; margin: 18px 0 8px; color: #a8b2c4; font-weight: 500; }
.card { background: #1a1f2a; border: 1px solid #2a3142; border-radius: 8px;
        padding: 16px 18px; margin-bottom: 18px; }
.kpi-row { display: flex; gap: 16px; flex-wrap: wrap; }
.kpi { background: #1a1f2a; border: 1px solid #2a3142; border-radius: 8px;
       padding: 14px 18px; min-width: 160px; flex: 1; }
.kpi .label { color: #8a94a6; font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
.kpi .value { font-size: 28px; font-weight: 700; margin-top: 4px; }
.kpi .sub { color: #8a94a6; font-size: 12px; margin-top: 2px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; padding: 8px 10px; background: #232b3a; color: #a8b2c4;
     font-weight: 600; border-bottom: 1px solid #2a3142; }
td { padding: 7px 10px; border-bottom: 1px solid #232b3a; }
tr:hover td { background: #1f2532; }
.muted { color: #8a94a6; }
.pos { color: #6cd16c; }
.neg { color: #ff8a8a; }
.warn { color: #f5c46c; }
.tag { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 11px;
       background: #2a3142; color: #c0c8d8; }
.tag.high  { background: #2d4a2d; color: #99d699; }
.tag.med   { background: #4a432d; color: #d6c699; }
.tag.low   { background: #4a2d2d; color: #d69999; }
.bar { background: #2a3142; height: 10px; border-radius: 4px; overflow: hidden; }
.bar > .fill { background: #4a7bc8; height: 100%; }
small.note { color: #8a94a6; font-size: 12px; }
p.hint { color: #a8b2c4; font-size: 13px; margin: 4px 0 14px;
         background: #14202c; border-left: 3px solid #4a7bc8;
         padding: 8px 12px; border-radius: 0 4px 4px 0; }
p.hint strong { color: #e6e6e6; }
p.hint code  { background: #232b3a; padding: 1px 5px; border-radius: 3px; font-size: 12px; }
a { color: #8aa6d6; text-decoration: none; }
a:hover { color: #fff; text-decoration: underline; }
table a { color: #b3c5e0; }
table a:hover { color: #fff; }
.legend { display: flex; gap: 18px; flex-wrap: wrap; margin: 6px 0 16px;
          font-size: 12px; color: #a8b2c4; }
.legend .item { display: flex; align-items: center; gap: 6px; }
.legend .swatch { width: 14px; height: 10px; border-radius: 2px; }
.flex { display: flex; gap: 16px; }
.flex > * { flex: 1; }
form.login { background: #1a1f2a; border: 1px solid #2a3142; border-radius: 10px;
             padding: 28px; width: 320px; margin: 80px auto; }
form.login input { width: 100%; padding: 9px 11px; margin: 6px 0 12px;
                   background: #0f1419; color: #e6e6e6; border: 1px solid #2a3142;
                   border-radius: 5px; font-size: 14px; }
form.login button { width: 100%; padding: 10px; background: #4a7bc8; color: #fff;
                    border: 0; border-radius: 5px; font-weight: 600; cursor: pointer; }
form.login .err { background: #3a1a1a; color: #ff8a8a; border: 1px solid #5a2a2a;
                  padding: 8px 10px; border-radius: 5px; font-size: 13px; margin-bottom: 10px; }
.flash { background: #1a3a2d; color: #99d699; border: 1px solid #2d4a3a;
         padding: 8px 12px; border-radius: 5px; margin-bottom: 14px; }