:root {
  --bg: #f5f7fb;
  --panel: #ffffff;
  --panel-2: #eef4ff;
  --ink: #101828;
  --muted: #667085;
  --line: #d9e2ec;
  --brand: #155eef;
  --brand-2: #0b4bcc;
  --green: #087443;
  --amber: #b54708;
  --red: #b42318;
  --blue: #026aa2;
  --shadow: 0 14px 34px rgba(16, 24, 40, .08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr);
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button, input { font: inherit; }

button, .button-link {
  border: 0;
  border-radius: 8px;
  padding: 10px 13px;
  background: var(--brand);
  color: #fff;
  font-weight: 800;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

button:hover, .button-link:hover { background: var(--brand-2); }
.button-link.secondary {
  background: rgba(255,255,255,.96);
  color: #1849a9;
  border: 1px solid rgba(255,255,255,.75);
}

.side {
  min-height: 100vh;
  position: sticky;
  top: 0;
  padding: 18px;
  background:
    linear-gradient(180deg, rgba(16,24,40,.98), rgba(16,24,40,.94)),
    radial-gradient(circle at top left, rgba(21,94,239,.28), transparent 34%);
  color: #fff;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 900;
}

.brand span {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(135deg, #155eef, #12b76a);
  box-shadow: 0 10px 28px rgba(21,94,239,.32);
}

nav { display: grid; gap: 6px; }
nav a {
  color: #cbd5e1;
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 8px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
}
nav a small { color: #94a3b8; font-size: 11px; font-weight: 800; }
nav a:hover, nav a.active { background: #1d2939; color: #fff; }

.coverage {
  margin-top: auto;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.045);
  border-radius: 8px;
  padding: 12px;
}
.coverage h3 { margin: 0 0 10px; font-size: 13px; }
.coverage div {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 0;
  border-top: 1px solid rgba(255,255,255,.08);
  color: #cbd5e1;
  font-size: 12px;
}
.coverage div:first-of-type { border-top: 0; }
.coverage strong { color: #fff; }

main {
  min-width: 0;
  display: grid;
  gap: 18px;
  padding: 22px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  margin: -22px -22px 0;
  min-height: 68px;
  padding: 14px 22px;
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.topbar h1 { margin: 0; font-size: 20px; }
.topbar p { margin: 4px 0 0; color: var(--muted); font-size: 13px; }
.top-actions {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: #344054;
  font-size: 13px;
  white-space: nowrap;
}
.live-dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: #12b76a;
  box-shadow: 0 0 0 6px rgba(18,183,106,.16);
}

.hero {
  min-height: 510px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 34px;
  color: #fff;
  display: grid;
  grid-template-columns: minmax(340px, 1fr) minmax(360px, .82fr);
  align-items: center;
  gap: 24px;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 18%, rgba(18,183,106,.32), transparent 24%),
    radial-gradient(circle at 45% 75%, rgba(21,94,239,.38), transparent 28%),
    linear-gradient(115deg, rgba(16,24,40,.98), rgba(21,94,239,.78));
}

.hero h2 {
  margin: 12px 0;
  max-width: 840px;
  font-size: clamp(36px, 5vw, 64px);
  line-height: .96;
  letter-spacing: 0;
}
.hero p {
  max-width: 720px;
  color: #dbeafe;
  font-size: 17px;
  line-height: 1.55;
}
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }

.glass-panel {
  background: rgba(255,255,255,.96);
  color: var(--ink);
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 24px 60px rgba(0,0,0,.25);
}

.panel-title {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 12px;
  margin-bottom: 12px;
}
.panel-title h3 { margin: 0; font-size: 17px; }
.panel-title p { margin: 3px 0 0; color: var(--muted); font-size: 12px; }

.severity {
  background: #fef3f2;
  color: var(--red);
  border: 1px solid #fecdca;
  border-radius: 999px;
  padding: 6px 9px;
  font-size: 12px;
  font-weight: 900;
}

.pill {
  display: inline-flex;
  border-radius: 999px;
  padding: 6px 9px;
  font-size: 12px;
  font-weight: 900;
}
.green { background: #ecfdf3; color: var(--green); }
.amber { background: #fffaeb; color: var(--amber); }
.red { background: #fef3f2; color: var(--red); }
.blue { background: #eff8ff; color: var(--blue); }

.status-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.kpi {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 8px;
  padding: 12px;
}
.kpi strong { display: block; font-size: 22px; letter-spacing: -.2px; }
.kpi small { display: block; color: var(--muted); margin-top: 6px; line-height: 1.35; }

.cockpit {
  display: grid;
  grid-template-columns: minmax(420px, 1.1fr) minmax(360px, .9fr);
  gap: 18px;
  align-items: start;
}

.stack { display: grid; gap: 18px; }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.head {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}
.head.compact { padding-bottom: 12px; }
.head h2 { margin: 0; font-size: 18px; }
.head p { margin: 4px 0 0; color: var(--muted); font-size: 13px; line-height: 1.4; }

.chat {
  min-height: 610px;
  display: grid;
  grid-template-rows: auto auto 1fr auto;
}
.chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  background: #fbfdff;
}
.chips button {
  background: #eff6ff;
  color: #1849a9;
  border: 1px solid #bfdbfe;
  padding: 7px 10px;
  font-size: 12px;
}
.messages {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow: auto;
  max-height: 420px;
}
.msg {
  max-width: 90%;
  border-radius: 8px;
  padding: 12px 13px;
  line-height: 1.45;
  font-size: 14px;
}
.msg.ai { align-self: flex-start; background: #eef3f8; border: 1px solid #dde7f2; }
.msg.user { align-self: flex-end; background: var(--brand); color: #fff; }
.evidence {
  margin-top: 10px;
  display: grid;
  gap: 6px;
}
.evidence div {
  padding: 8px;
  border: 1px solid var(--line);
  background: #fff;
  color: #344054;
  border-radius: 6px;
  font-size: 12px;
}

.composer {
  padding: 12px;
  border-top: 1px solid var(--line);
  display: flex;
  gap: 10px;
  background: #fff;
}
.composer input {
  flex: 1;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 11px 12px;
  outline: none;
}

.timeline {
  padding: 14px;
  display: grid;
  gap: 10px;
}
.timeline-row {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 10px;
  font-size: 13px;
}
.timeline-row time {
  color: var(--muted);
  font-weight: 800;
}
.timeline-row div {
  border-left: 3px solid #d0d5dd;
  padding-left: 10px;
}
.timeline-row.critical div { border-color: var(--red); }
.timeline-row.warning div { border-color: var(--amber); }
.timeline-row strong { display: block; margin-bottom: 3px; }
.timeline-row small { color: var(--muted); line-height: 1.35; }

.connector-grid {
  padding: 14px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.connector {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 11px;
}
.connector strong { display: flex; justify-content: space-between; gap: 8px; font-size: 13px; }
.connector small { display: block; color: var(--muted); margin-top: 6px; line-height: 1.35; }
.connector em {
  font-style: normal;
  color: var(--green);
  background: #ecfdf3;
  border-radius: 999px;
  padding: 3px 7px;
  font-size: 11px;
}

.graph-card { min-height: 520px; }
.graph {
  min-height: 480px;
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(#eef3f8 1px, transparent 1px),
    linear-gradient(90deg, #eef3f8 1px, transparent 1px),
    #fbfdff;
  background-size: 28px 28px;
}
.node {
  position: absolute;
  width: 146px;
  min-height: 58px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 9px 10px;
  box-shadow: 0 8px 18px rgba(16, 24, 40, .08);
  font-size: 12px;
  font-weight: 900;
}
.node small {
  display: block;
  color: var(--muted);
  margin-top: 4px;
  font-weight: 650;
}
.node.degraded, .node.critical {
  border-color: #fecdca;
  color: var(--red);
  background: #fffbfa;
}
.node.warning {
  border-color: #fedf89;
  color: var(--amber);
  background: #fffcf5;
}
.node.healthy, .node.success {
  border-color: #abefc6;
  color: var(--green);
  background: #f6fef9;
}
.edge {
  position: absolute;
  height: 2px;
  background: #98a2b3;
  opacity: .7;
  transform-origin: left center;
}

.action-grid {
  display: grid;
  grid-template-columns: minmax(380px, 1fr) minmax(360px, .8fr);
  gap: 18px;
  align-items: start;
}
.action-box, .proof-list {
  padding: 14px;
  display: grid;
  gap: 10px;
}
pre {
  margin: 0;
  white-space: pre-wrap;
  background: #0b1220;
  color: #dbeafe;
  border-radius: 8px;
  padding: 12px;
  max-height: 370px;
  overflow: auto;
  font-size: 12px;
  line-height: 1.5;
}
.proof-list div {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 11px;
  background: #fff;
}
.proof-list strong { display: block; margin-bottom: 4px; }
.proof-list span { color: var(--muted); font-size: 13px; line-height: 1.4; }

@media (max-width: 1180px) {
  body { grid-template-columns: 1fr; }
  .side { min-height: auto; position: static; }
  .coverage { margin-top: 0; }
  .hero, .cockpit, .action-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  main { padding: 14px; }
  .topbar {
    margin: -14px -14px 0;
    align-items: flex-start;
    flex-direction: column;
  }
  .hero { padding: 22px; min-height: auto; }
  .hero h2 { font-size: 36px; }
  .status-grid, .connector-grid { grid-template-columns: 1fr; }
  .composer { flex-direction: column; }
  .msg { max-width: 100%; }
  .graph { min-height: 620px; }
}