/* Nexus - matched to CALIBRE's palette and typography. */
:root {
  --blue:  #2E5496;
  --dark:  #1F3864;
  --bg:    #f4f6fb;
  --card:  #fff;
  --line:  #dde3ef;
  --muted: #667788;
  --ink:   #222;
  --ink-soft: #334455;
  --highlight: #f7f9fd;

  --sev-low:      #2e8b57;
  --sev-medium:   #e08e0b;
  --sev-high:     #d9622b;
  --sev-critical: #c0392b;
}
* { box-sizing: border-box; font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--ink); }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
p { margin: 0.5em 0; }

/* Header */
header.topbar {
  background: var(--dark);
  color: #fff;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
}
header.topbar h1 { margin: 0; font-size: 19px; font-weight: 600; }
header.topbar p { margin: 4px 0 0; font-size: 12.5px; opacity: 0.85; }
header.topbar .meta { text-align: right; font-size: 12.5px; opacity: 0.9; }

/* Shell */
.shell { display: flex; min-height: calc(100vh - 62px); }
main {
  flex: 1;
  padding: 20px 28px;
  overflow: auto;
  background: var(--bg);
}
nav.leftnav {
  width: 240px;
  background: #fff;
  border-right: 1px solid var(--line);
  padding: 16px 0;
  flex-shrink: 0;
}
nav.leftnav .lbl {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 6px 20px 4px;
}
nav.leftnav a {
  display: block;
  padding: 10px 20px;
  font-size: 14px;
  color: #334;
  cursor: pointer;
  border-right: 3px solid transparent;
}
nav.leftnav a:hover { background: #f2f5fc; text-decoration: none; }
nav.leftnav a.active {
  background: #eef2fa;
  color: var(--dark);
  border-right-color: var(--blue);
  font-weight: 600;
}
nav.leftnav hr { border: 0; border-top: 1px solid var(--line); margin: 8px 0; }

/* Cards */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px;
  margin: 12px 0;
}
.card h2 { color: var(--dark); margin: 0 0 8px; font-size: 15px; }
.card h3 { color: var(--dark); margin: 16px 0 6px; font-size: 13.5px; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-6 { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-6 { grid-template-columns: 1fr 1fr; }
}

/* KPI tiles */
.kpi {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  text-align: center;
}
.kpi .num { font-size: 26px; font-weight: 700; color: var(--dark); line-height: 1.1; }
.kpi .lbl { font-size: 11px; color: var(--muted); margin-top: 4px; }

/* Use-case card */
.usecase {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 140px;
}
.usecase .icon { font-size: 22px; }
.usecase .title { font-weight: 700; color: var(--dark); }
.usecase .desc { color: var(--ink-soft); font-size: 13px; flex: 1; }
.usecase a.btn { align-self: flex-start; }

/* Buttons */
.btn {
  background: var(--blue);
  color: #fff !important;
  border: 0;
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 13.5px;
  cursor: pointer;
  display: inline-block;
  margin-top: 6px;
}
.btn:hover { filter: brightness(0.95); text-decoration: none; }
.btn.ghost { background: #eef2fa; color: var(--dark) !important; }
.btn.danger { background: var(--sev-critical); color: #fff !important; }

/* Badges */
.badge { display: inline-block; padding: 3px 10px; border-radius: 12px; font-size: 12px; font-weight: 600; color: #fff; }
.badge.Low, .badge.Approve { background: var(--sev-low); }
.badge.Medium, .badge.Moderate { background: var(--sev-medium); }
.badge.High { background: var(--sev-high); }
.badge.Critical { background: var(--sev-critical); }

/* Tables */
table { width: 100%; border-collapse: collapse; font-size: 13px; background: var(--card); }
th, td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
th { background: #eef2fa; color: var(--dark); font-weight: 600; }
tbody tr:hover { background: var(--highlight); }

/* Trust gauge */
.gauge {
  height: 14px;
  border-radius: 8px;
  background: #e9edf6;
  overflow: hidden;
  margin: 8px 0;
}
.gauge > div { height: 100%; transition: width 0.2s; }

/* Utility */
.muted { color: var(--muted); font-size: 12.5px; }
.note { font-size: 12px; color: var(--muted); margin-top: 10px; font-style: italic; }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
label { font-size: 12.5px; color: var(--muted); display: block; margin: 10px 0 4px; }
input[type=text], textarea, select {
  width: 100%; padding: 8px; border: 1px solid var(--line);
  border-radius: 6px; font-size: 13px; background: #fff; color: var(--ink);
}
textarea { resize: vertical; min-height: 100px; }

.pill {
  background: var(--highlight); color: var(--ink);
  padding: 2px 10px; border-radius: 12px; font-size: 12px;
  border: 1px solid var(--line); display: inline-block; margin: 2px;
}

/* Decision banner */
.decision-banner {
  border-radius: 8px; padding: 18px 22px; color: #fff;
  margin: 12px 0;
}
.decision-banner .label { font-size: 12px; opacity: 0.9; letter-spacing: 1px; }
.decision-banner .verdict { font-size: 22px; font-weight: 700; margin-top: 4px; }
.decision-banner.APPROVE { background: var(--sev-low); }
.decision-banner.APPROVE_WITH_CONDITIONS { background: #4a9d6b; }
.decision-banner.REQUIRES_REMEDIATION { background: var(--sev-medium); }
.decision-banner.ESCALATE_TO_RISK_COMMITTEE { background: var(--sev-high); }
.decision-banner.DO_NOT_APPROVE { background: var(--sev-critical); }
.decision-banner.PENDING { background: var(--muted); }

/* Recent activity list */
.recent { list-style: none; padding: 0; margin: 0; }
.recent li {
  padding: 8px 0; border-bottom: 1px solid var(--line);
  font-size: 13px; color: var(--ink);
  display: flex; gap: 12px;
}
.recent li:last-child { border-bottom: 0; }
.recent .id { font-family: monospace; color: var(--muted); min-width: 80px; }

/* Help stripe */
.help {
  background: var(--highlight); border-left: 3px solid var(--blue);
  padding: 10px 14px; border-radius: 4px; font-size: 13px;
  color: var(--ink-soft); margin: 8px 0 12px;
}

/* Loading indicator */
.htmx-request .loader { display: inline; }
.loader { display: none; color: var(--muted); font-style: italic; }

@media print {
  header.topbar, nav.leftnav, .btn { display: none !important; }
  main { padding: 0; }
  body { background: #fff; }
}