* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #f4f5f7;
  color: #1c1e21;
}
nav {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 10px 24px;
  background: #101828;
  color: #fff;
}
nav a { color: #cbd5e1; text-decoration: none; }
nav a:hover { color: #fff; }
nav .brand { font-weight: 700; font-size: 18px; color: #fff; }
nav .spacer { flex: 1; }
nav .who { color: #94a3b8; font-size: 14px; }
nav form { margin: 0; }
button.link {
  background: none; border: none; color: #cbd5e1; cursor: pointer;
  font-size: 14px; padding: 0;
}
button.link:hover { color: #fff; }
.badge {
  background: #ef4444; color: #fff; border-radius: 10px;
  padding: 1px 7px; font-size: 12px;
}
main { max-width: 1200px; margin: 24px auto; padding: 0 16px; }
h1 { font-size: 22px; }
h2 { font-size: 17px; }

.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; }
.flash-ok { background: #dcfce7; color: #166534; }
.flash-err { background: #fee2e2; color: #991b1b; }

.login-box {
  max-width: 380px; margin: 60px auto; background: #fff;
  padding: 28px; border-radius: 12px; box-shadow: 0 1px 4px rgba(0,0,0,.08);
}
.login-box h1 { margin-top: 0; text-align: center; }
label { display: block; margin: 10px 0; font-size: 14px; }
input, select {
  display: block; width: 100%; margin-top: 4px; padding: 8px 10px;
  border: 1px solid #d1d5db; border-radius: 6px; font-size: 15px;
}
button[type=submit], .actions button {
  margin-top: 12px; padding: 8px 16px; border: none; border-radius: 6px;
  background: #2563eb; color: #fff; font-size: 14px; cursor: pointer;
}
button[type=submit]:hover { background: #1d4ed8; }
button.danger { background: #dc2626; }
button.danger:hover { background: #b91c1c; }
details { margin-top: 16px; font-size: 14px; }
details summary { cursor: pointer; color: #2563eb; }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }
.card {
  display: block; background: #fff; border-radius: 12px; padding: 18px;
  text-decoration: none; color: inherit; box-shadow: 0 1px 4px rgba(0,0,0,.08);
  transition: box-shadow .15s;
}
.card:hover { box-shadow: 0 4px 12px rgba(0,0,0,.14); }
.card h2 { margin: 0 0 6px; color: #2563eb; }
.card p { margin: 0; font-size: 14px; color: #4b5563; }

table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 10px; overflow: hidden; font-size: 14px; }
th, td { padding: 8px 10px; text-align: left; border-bottom: 1px solid #eef0f3; }
th { background: #f8fafc; font-weight: 600; white-space: nowrap; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
td.mono { font-family: ui-monospace, Menlo, monospace; font-size: 13px; }
.actions { white-space: nowrap; }
.actions form { display: inline-block; margin: 0 2px; }
.actions button { margin-top: 0; padding: 4px 10px; font-size: 13px; }
.inline-form { background: #fff; padding: 16px; border-radius: 10px; max-width: 480px; }

.filters { display: flex; gap: 16px; background: #fff; padding: 12px 16px; border-radius: 10px; margin-bottom: 14px; }
.filters label { margin: 0; flex: 1; max-width: 340px; }

.status-chips { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.chip {
  padding: 5px 12px; border-radius: 16px; background: #e5e7eb; color: #374151;
  text-decoration: none; font-size: 13px;
}
.chip.active { outline: 2px solid #2563eb; }
.chip-scale { background: #dcfce7; color: #166534; }
.chip-kill { background: #fee2e2; color: #991b1b; }
.chip-confounded { background: #fef3c7; color: #92400e; }
.chip-hollow { background: #e0e7ff; color: #3730a3; }
.chip-insufficient { background: #f3f4f6; color: #6b7280; }

.help-link { font-size: 14px; font-weight: 400; margin-left: 10px; text-decoration: none; color: #2563eb; }
.muted { color: #9ca3af; font-size: 13px; }
.muted-note { color: #6b7280; font-size: 13px; background: #f3f4f6; padding: 10px 14px; border-radius: 8px; }
.help ol { background: #fff; border-radius: 10px; padding: 16px 16px 16px 34px; font-size: 14px; }
.help ol li { margin: 10px 0; }
.delta-bad { color: #b45309; font-weight: 600; margin-left: 4px; }
.spark { font-family: ui-monospace, Menlo, monospace; font-size: 15px; letter-spacing: 1px; color: #2563eb; }
.help h2 { margin-top: 26px; }
.help table { margin-bottom: 10px; }
.help td, .help th { vertical-align: top; }
.help ul { background: #fff; border-radius: 10px; padding: 16px 16px 16px 34px; font-size: 14px; }
.help li { margin: 6px 0; }

tr.row-scale td:first-child { border-left: 3px solid #16a34a; }
tr.row-kill td:first-child { border-left: 3px solid #dc2626; }
tr.row-confounded td:first-child { border-left: 3px solid #d97706; }
tr.row-hollow td:first-child { border-left: 3px solid #4f46e5; }