:root {
  color-scheme: dark;
  --bg: #07080c;
  --panel: rgba(10, 14, 23, 0.78);
  --panel-strong: rgba(15, 21, 33, 0.94);
  --text: #edf2ff;
  --muted: #9aa7bd;
  --line: rgba(255, 255, 255, 0.14);
  --line-strong: rgba(255, 255, 255, 0.22);
  --gold: #f0c95a;
  --blue: #83a9ff;
  --green: #63d993;
  --red: #ff6d6d;
  --shadow: rgba(0, 0, 0, 0.36);
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f3f1ea;
  --panel: rgba(255, 255, 255, 0.78);
  --panel-strong: rgba(255, 255, 255, 0.96);
  --text: #15191f;
  --muted: #596273;
  --line: rgba(15, 23, 42, 0.14);
  --line-strong: rgba(15, 23, 42, 0.22);
  --gold: #9b6a08;
  --blue: #244fb3;
  --green: #147948;
  --red: #aa3030;
  --shadow: rgba(31, 41, 55, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  min-height: 100%;
  margin: 0;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
  background:
    radial-gradient(circle at 20% 10%, rgba(131, 169, 255, 0.16), transparent 28rem),
    radial-gradient(circle at 82% 18%, rgba(240, 201, 90, 0.14), transparent 24rem),
    linear-gradient(160deg, #07080c 0%, #101521 46%, #07080c 100%);
}

:root[data-theme="light"] body {
  background:
    radial-gradient(circle at 20% 10%, rgba(36, 79, 179, 0.11), transparent 28rem),
    radial-gradient(circle at 82% 18%, rgba(155, 106, 8, 0.1), transparent 24rem),
    linear-gradient(160deg, #f3f1ea 0%, #e9edf4 50%, #f8f7f1 100%);
}

.bg-hero,
.bg-scrim {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.bg-hero {
  opacity: 0.12;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
}

.bg-scrim {
  background: linear-gradient(180deg, rgba(7, 8, 12, 0.12), rgba(7, 8, 12, 0.82));
}

:root[data-theme="light"] .bg-scrim {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.68));
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding: 1rem clamp(1rem, 4vw, 2.5rem);
  border-bottom: 1px solid var(--line);
  background: rgba(7, 8, 12, 0.78);
  backdrop-filter: blur(16px);
}

:root[data-theme="light"] .topbar {
  background: rgba(255, 255, 255, 0.72);
}

.brand {
  display: flex;
  gap: 1rem;
  align-items: center;
  color: inherit;
  text-decoration: none;
}

.brand img {
  width: 58px;
  height: 58px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  object-fit: cover;
}

.brand h1,
.brand p {
  margin: 0;
}

.brand h1 {
  font-size: clamp(1.45rem, 2.2vw, 2.35rem);
  line-height: 1.04;
  text-transform: uppercase;
}

.brand p {
  margin-top: 0.22rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.eyebrow {
  display: block;
  margin-bottom: 0.2rem;
  color: var(--gold);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  color: var(--text);
  background: var(--panel-strong);
  cursor: pointer;
}

main {
  position: relative;
  z-index: 1;
  width: min(1520px, 100%);
  margin: 0 auto;
  padding: clamp(1rem, 3vw, 2.4rem);
}

.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 22px 70px var(--shadow);
  backdrop-filter: blur(14px);
}

.panel-wide {
  overflow: hidden;
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.2rem;
  border-bottom: 1px solid var(--line);
}

.panel-heading h2 {
  margin: 0;
  font-size: 1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.meta {
  color: var(--muted);
  font-size: 0.82rem;
}

.architecture-map {
  position: relative;
  padding: clamp(1rem, 2vw, 1.6rem);
  overflow: hidden;
}

.architecture-map::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 36px 36px;
  opacity: 0.28;
}

.architecture-map > * {
  position: relative;
}

.architecture-map h3 {
  margin: 0 0 0.8rem;
  color: var(--gold);
  font-size: clamp(1.1rem, 2vw, 1.8rem);
  letter-spacing: 0.06em;
  text-align: center;
  text-transform: uppercase;
}

.kbza-arch-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.65rem;
  margin-bottom: 1.25rem;
  color: var(--muted);
  font-size: 0.84rem;
}

.kbza-arch-legend span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.42rem 0.7rem;
  background: rgba(255, 255, 255, 0.05);
}

.kbza-arch-legend b {
  color: var(--green);
}

.kbza-arch-chart {
  position: relative;
  display: grid;
  gap: 1.15rem;
  padding: 0.4rem 0 0.2rem;
}

.kbza-arch-svg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.kbza-arch-row {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 1rem;
  align-items: stretch;
}

.kbza-arch-row.principals {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  width: min(900px, 100%);
  margin: 0 auto;
}

.kbza-arch-row.coo {
  grid-template-columns: minmax(280px, 520px);
  justify-content: center;
}

.kbza-arch-row.live-suite {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.kbza-arch-row.memory {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.kbza-arch-card {
  position: relative;
  min-height: 128px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 0.85rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.025));
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.2);
  transition: border-color 0.18s ease, transform 0.18s ease, background 0.18s ease;
}

.kbza-arch-card:hover,
.kbza-arch-card:focus-visible {
  border-color: var(--gold);
  transform: translateY(-1px);
  outline: none;
}

.kbza-arch-card.principal {
  border-color: rgba(240, 201, 90, 0.42);
}

.kbza-arch-card.live {
  border-color: rgba(99, 217, 147, 0.42);
}

.kbza-arch-card.command-node {
  background: linear-gradient(180deg, rgba(240, 201, 90, 0.16), rgba(255, 255, 255, 0.035));
}

.kbza-arch-card.datasource {
  border-color: rgba(131, 169, 255, 0.42);
}

.kbza-arch-card.memory-card {
  border-color: rgba(255, 255, 255, 0.22);
}

.kbza-arch-card .agent-head {
  display: flex;
  gap: 0.78rem;
  align-items: center;
}

.kbza-arch-card .agent-meta {
  min-width: 0;
}

.kbza-arch-card .portrait {
  flex: 0 0 auto;
  width: 58px;
  height: 58px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  object-fit: cover;
}

.kbza-arch-card .title {
  color: var(--text);
  font-size: 0.98rem;
  font-weight: 800;
  line-height: 1.2;
}

.kbza-arch-card .sub {
  margin-top: 0.28rem;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.35;
}

.kbza-arch-card .expand {
  display: none;
  margin-top: 0.8rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.48;
}

.kbza-arch-card.open .expand {
  display: block;
}

.kbza-arch-card.agent-detail {
  cursor: pointer;
}

.kbza-arch-card.agent-detail::after {
  content: "+";
  position: absolute;
  right: 0.72rem;
  bottom: 0.58rem;
  display: grid;
  place-items: center;
  width: 1.3rem;
  height: 1.3rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.8rem;
}

.kbza-arch-card.agent-detail.open::after {
  content: "-";
}

.arch-pill {
  display: inline-flex;
  align-items: center;
  margin-left: 0.2rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.12rem 0.38rem;
  color: var(--muted);
  font-size: 0.62rem;
  vertical-align: middle;
}

.arch-pill.live {
  border-color: rgba(99, 217, 147, 0.45);
  color: var(--green);
}

.data-label {
  display: inline-flex;
  margin-bottom: 0.4rem;
  color: var(--blue);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.kbza-arch-group-label {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.kbza-arch-group-label::before,
.kbza-arch-group-label::after {
  content: "";
  height: 1px;
  flex: 1 1 auto;
  background: var(--line);
}

@media (max-width: 1100px) {
  .kbza-arch-row.live-suite,
  .kbza-arch-row.memory {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .topbar {
    position: relative;
    align-items: flex-start;
  }

  .brand {
    align-items: flex-start;
  }

  .brand img {
    width: 48px;
    height: 48px;
  }

  .brand p {
    font-size: 0.84rem;
  }

  main {
    padding: 0.85rem;
  }

  .panel-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .kbza-arch-row,
  .kbza-arch-row.principals,
  .kbza-arch-row.coo,
  .kbza-arch-row.live-suite,
  .kbza-arch-row.memory {
    grid-template-columns: 1fr;
    width: 100%;
  }

  .kbza-arch-svg {
    display: none;
  }

  .kbza-arch-card {
    min-height: 0;
  }
}