:root,
[data-theme="dark"] {
  --bg-primary: #0b0d0e;
  --bg-surface: #111416;
  --bg-elevated: #161a1d;
  --bg-glass: rgba(17, 20, 22, 0.85);
  --border-hairline: #23292e;
  --border-strong: #343d44;
  --text-primary: #eceae4;
  --text-secondary: #9aa3ab;
  --text-muted: #636d76;
  --accent-signal: #e05a2b;
  --accent-ok: #19b37b;
  --accent-cyan: #38a3b8;
  --grid-line: rgba(236, 234, 228, 0.03);
  --shadow-panel: 0 12px 32px -12px rgba(0, 0, 0, 0.65);
}

[data-theme="light"] {
  --bg-primary: #f3f1ec;
  --bg-surface: #faf9f5;
  --bg-elevated: #edeae2;
  --bg-glass: rgba(250, 249, 245, 0.88);
  --border-hairline: #d7d3c8;
  --border-strong: #b8b3a6;
  --text-primary: #161819;
  --text-secondary: #4c535a;
  --text-muted: #788088;
  --accent-signal: #d1491b;
  --accent-ok: #0d8a5d;
  --accent-cyan: #1e7c8f;
  --grid-line: rgba(22, 24, 25, 0.04);
  --shadow-panel: 0 8px 24px -10px rgba(22, 24, 25, 0.08);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.grid-backdrop {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 32px 32px;
  z-index: 0;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

/* Topbar */
.topbar {
  border-bottom: 1px solid var(--border-hairline);
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.topbar-inner {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.85rem;
}

.status-beacon {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background-color: var(--accent-ok);
  box-shadow: 0 0 0 3px rgba(25, 179, 123, 0.22);
  animation: pulse-beacon 2.4s infinite ease-in-out;
}

@keyframes pulse-beacon {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.55;
    transform: scale(0.92);
  }
}

.brand-code {
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-primary);
}

.brand-divider {
  color: var(--text-muted);
}

.brand-host {
  color: var(--accent-signal);
  font-weight: 500;
}

.topbar-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.meta-pill {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--border-hairline);
  background: var(--bg-surface);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
}

.meta-label {
  color: var(--text-muted);
}

.meta-value {
  color: var(--text-primary);
  font-weight: 500;
}

.theme-btn {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 0.35rem 0.75rem;
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.theme-btn:hover {
  border-color: var(--accent-signal);
}

/* Main Layout */
.main-layout {
  flex: 1;
  padding-top: 2.25rem;
  padding-bottom: 3.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

/* Hero Section */
.hero-panel {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 2rem;
  padding: 1.75rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  box-shadow: var(--shadow-panel);
  align-items: center;
}

.eyebrow {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--accent-signal);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.hero-copy h1 {
  font-size: clamp(1.55rem, 2.5vw, 2.15rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.18;
  margin-bottom: 0.75rem;
}

.hero-desc {
  color: var(--text-secondary);
  font-size: 0.94rem;
  max-width: 58ch;
}

.kpi-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.kpi-card {
  padding: 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-hairline);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.35rem;
}

.kpi-label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.kpi-value-row {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
}

.kpi-value {
  font-family: "IBM Plex Mono", monospace;
  font-size: 1.45rem;
  font-weight: 600;
  color: var(--text-primary);
}

.kpi-value.status-ok {
  color: var(--accent-ok);
  font-size: 1.2rem;
}

.kpi-unit {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.kpi-sub {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.7rem;
  color: var(--text-secondary);
}

/* Panels */
.panel-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 1.5rem;
}

.panel {
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  box-shadow: var(--shadow-panel);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-hairline);
}

.panel-title {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.panel-subtitle {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-top: 0.2rem;
}

.action-btn {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 0.45rem 0.85rem;
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s ease;
}

.action-btn:hover {
  border-color: var(--accent-signal);
  color: var(--accent-signal);
}

.action-btn:active {
  transform: translateY(1px);
}

/* Telemetry Canvas & Log */
.canvas-wrap {
  position: relative;
  border: 1px solid var(--border-hairline);
  background: var(--bg-primary);
  height: 190px;
  overflow: hidden;
}

#telemetry-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.canvas-overlay {
  position: absolute;
  top: 0.55rem;
  left: 0.75rem;
  right: 0.75rem;
  display: flex;
  justify-content: space-between;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
  color: var(--text-muted);
  pointer-events: none;
}

.probe-log {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-hairline);
  padding: 0.75rem;
  height: 148px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.log-entry {
  display: flex;
  gap: 0.65rem;
  line-height: 1.4;
}

.log-ts {
  color: var(--text-muted);
  flex-shrink: 0;
}

.log-msg {
  color: var(--text-secondary);
  word-break: break-all;
}

.log-msg strong {
  color: var(--text-primary);
  font-weight: 500;
}

/* Endpoint Specs */
.badge {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--accent-ok);
  color: var(--accent-ok);
}

.route-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.route-item {
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--border-hairline);
  background: var(--bg-elevated);
}

.route-head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.35rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
}

.method-tag {
  padding: 0.1rem 0.45rem;
  font-size: 0.68rem;
  font-weight: 600;
  border: 1px solid currentColor;
}

.method-get {
  color: var(--accent-ok);
}

.method-ws {
  color: var(--accent-signal);
}

.method-head {
  color: var(--accent-cyan);
}

.route-path {
  color: var(--text-primary);
  font-weight: 500;
}

.route-status {
  margin-left: auto;
  color: var(--text-muted);
  font-size: 0.7rem;
}

.route-note {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.route-note code {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
  color: var(--text-primary);
}

/* Session Token Verifier */
.verify-box {
  margin-top: auto;
  padding: 0.9rem;
  border: 1px solid var(--border-hairline);
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.verify-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.74rem;
}

.verify-title {
  font-weight: 600;
  color: var(--text-primary);
}

.verify-hint {
  color: var(--text-muted);
}

.verify-controls {
  display: flex;
  gap: 0.5rem;
}

.token-input,
.filter-input {
  flex: 1;
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  padding: 0.45rem 0.65rem;
  outline: none;
}

.token-input:focus,
.filter-input:focus {
  border-color: var(--accent-signal);
}

.verify-result {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  color: var(--text-secondary);
}

/* Artifact Table */
.filter-group {
  min-width: 280px;
}

.table-scroll {
  overflow-x: auto;
}

.artifact-table {
  width: 100%;
  border-collapse: collapse;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  text-align: left;
}

.artifact-table th {
  padding: 0.65rem 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border-strong);
}

.artifact-table td {
  padding: 0.72rem 0.75rem;
  border-bottom: 1px solid var(--border-hairline);
  color: var(--text-secondary);
}

.artifact-table tbody tr:hover {
  background: var(--bg-elevated);
}

.artifact-name {
  color: var(--text-primary);
  font-weight: 500;
}

.digest-pill {
  color: var(--text-muted);
  font-size: 0.73rem;
}

.cache-hit {
  color: var(--accent-ok);
  font-weight: 600;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-hairline);
  padding: 1.25rem 0;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  color: var(--text-muted);
  background: var(--bg-surface);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.footer-right {
  display: flex;
  gap: 0.6rem;
}

@media (max-width: 960px) {
  .hero-panel,
  .panel-grid {
    grid-template-columns: 1fr;
  }

  .topbar-meta .meta-pill:nth-child(2) {
    display: none;
  }
}

@media (max-width: 640px) {
  .kpi-strip {
    grid-template-columns: 1fr;
  }

  .filter-group {
    width: 100%;
    min-width: 0;
  }

  .panel-header {
    flex-direction: column;
  }
}