:root {
  color-scheme: light dark;
  --font-sans: "IBM Plex Sans", "Inter", "Segoe UI", sans-serif;
  --radius-xs: 8px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --shadow-sm: 0 2px 10px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);

  --bg: #edf2fa;
  --bg-elevated: #f7faff;
  --panel: #ffffff;
  --ink: #12213b;
  --muted: #4d5d79;
  --line: #c9d6e6;
  --line-strong: #aebfd4;
  --accent: #0f766e;
  --accent-ink: #ffffff;
  --chip: #eff5fd;
  --canvas-top: #f8fbff;
  --canvas-bottom: #edf3fb;
  --tooltip-bg: #111827;
  --tooltip-ink: #e5e7eb;
  --code-bg: #0f172a;
  --code-ink: #e2e8f0;
  --danger: #b91c1c;
  --overlay: rgba(15, 23, 42, 0.45);
  --brand-start: #0f172a;
  --brand-end: #1d4ed8;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1220;
    --bg-elevated: #101a2e;
    --panel: #111c31;
    --ink: #e2e8f0;
    --muted: #b8c6da;
    --line: #274160;
    --line-strong: #3b5d87;
    --accent: #22c3b7;
    --accent-ink: #052323;
    --chip: #13253f;
    --canvas-top: #0d182b;
    --canvas-bottom: #0a1426;
    --tooltip-bg: #e2e8f0;
    --tooltip-ink: #0b1220;
    --code-bg: #0a1426;
    --code-ink: #d6e2f4;
    --danger: #f87171;
    --overlay: rgba(2, 7, 17, 0.58);
    --brand-start: #0a1120;
    --brand-end: #12326d;
  }
}

:root[data-theme="light"] {
  --bg: #edf2fa;
  --bg-elevated: #f7faff;
  --panel: #ffffff;
  --ink: #12213b;
  --muted: #4d5d79;
  --line: #c9d6e6;
  --line-strong: #aebfd4;
  --accent: #0f766e;
  --accent-ink: #ffffff;
  --chip: #eff5fd;
  --canvas-top: #f8fbff;
  --canvas-bottom: #edf3fb;
  --tooltip-bg: #111827;
  --tooltip-ink: #e5e7eb;
  --code-bg: #0f172a;
  --code-ink: #e2e8f0;
  --danger: #b91c1c;
  --overlay: rgba(15, 23, 42, 0.45);
  --brand-start: #0f172a;
  --brand-end: #1d4ed8;
}

:root[data-theme="dark"] {
  --bg: #0b1220;
  --bg-elevated: #101a2e;
  --panel: #111c31;
  --ink: #e2e8f0;
  --muted: #b8c6da;
  --line: #274160;
  --line-strong: #3b5d87;
  --accent: #22c3b7;
  --accent-ink: #052323;
  --chip: #13253f;
  --canvas-top: #0d182b;
  --canvas-bottom: #0a1426;
  --tooltip-bg: #e2e8f0;
  --tooltip-ink: #0b1220;
  --code-bg: #0a1426;
  --code-ink: #d6e2f4;
  --danger: #f87171;
  --overlay: rgba(2, 7, 17, 0.58);
  --brand-start: #0a1120;
  --brand-end: #12326d;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background:
    radial-gradient(1200px 500px at top right, color-mix(in srgb, var(--accent) 12%, transparent), transparent),
    linear-gradient(180deg, var(--bg-elevated), var(--bg));
  color: var(--ink);
}

.topbar {
  padding: 0.85rem 1.2rem;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 60%, transparent);
  background: linear-gradient(90deg, var(--brand-start), var(--brand-end));
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.brand-logo {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
}

.topbar h1 {
  margin: 0;
  font-size: 2rem;
  line-height: 1;
  letter-spacing: -0.03em;
}

.topbar p {
  margin: 0.2rem 0 0;
  color: #dbeafe;
  font-size: 0.97rem;
}

.layout {
  display: grid;
  grid-template-columns: 330px 1fr 360px;
  gap: 0.9rem;
  padding: 0.9rem;
  min-height: calc(100vh - 84px);
}

.left-panel,
.graph-panel,
.details-panel {
  background: color-mix(in srgb, var(--panel) 96%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 0.95rem;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(2px);
}

.tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.35rem;
  margin-bottom: 0.6rem;
}

.tab-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--panel) 86%, var(--bg));
  color: var(--muted);
  cursor: pointer;
  font-weight: 600;
}

.tab-btn.active {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, var(--panel));
}

.tab-icon {
  width: 0.58rem;
  height: 0.58rem;
  border-radius: 999px;
  border: 1.5px solid currentColor;
  opacity: 0.72;
}

.tab-btn.active .tab-icon {
  background: currentColor;
  opacity: 0.95;
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
}

h2,
h3 {
  margin: 0.15rem 0 0.65rem;
}

h2 {
  font-size: 2.2rem;
  letter-spacing: -0.02em;
}

h3 {
  font-size: 1.02rem;
}

label,
legend,
summary {
  display: block;
  margin-top: 0.55rem;
  font-weight: 600;
  color: var(--muted);
  font-size: 0.92rem;
}

.help-tip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.05rem;
  height: 1.05rem;
  margin-left: 0.32rem;
  border-radius: 999px;
  background: #2563eb;
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 700;
  cursor: help;
  position: relative;
  vertical-align: middle;
  outline: none;
}

.help-tip:focus {
  box-shadow: 0 0 0 2px color-mix(in srgb, #2563eb 35%, transparent);
}

.help-tooltip {
  position: absolute;
  left: 1.45rem;
  top: -0.25rem;
  width: min(420px, 80vw);
  padding: 0.5rem 0.6rem;
  border: 1px solid color-mix(in srgb, var(--line) 75%, transparent);
  border-radius: var(--radius-xs);
  background: color-mix(in srgb, var(--panel) 96%, var(--bg));
  color: var(--ink);
  font-size: 0.79rem;
  line-height: 1.35;
  box-shadow: var(--shadow-sm);
  opacity: 0;
  pointer-events: none;
  transform: translateY(4px);
  transition: opacity 120ms ease, transform 120ms ease;
  z-index: 20;
}

.help-tip:hover .help-tooltip,
.help-tip:focus .help-tooltip {
  opacity: 1;
  transform: translateY(0);
}

textarea,
input,
select {
  width: 100%;
  margin-top: 0.2rem;
  padding: 0.54rem 0.58rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--panel) 90%, var(--bg));
  color: var(--ink);
  font-size: 0.97rem;
}

textarea::placeholder,
input::placeholder {
  color: color-mix(in srgb, var(--muted) 55%, transparent);
}

textarea {
  resize: vertical;
}

textarea:focus,
input:focus,
select:focus,
button:focus,
a:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 45%, transparent);
  outline-offset: 1px;
}

.file-upload {
  width: 100%;
  margin-top: 0.2rem;
  padding: 0.45rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  display: flex;
  gap: 0.55rem;
  align-items: center;
  flex-wrap: wrap;
  background: color-mix(in srgb, var(--panel) 88%, var(--bg));
}

#file-picker-btn {
  background: color-mix(in srgb, var(--panel) 50%, var(--bg));
  color: var(--ink);
  border: 1px solid var(--line-strong);
}

#file-count {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 600;
}

.visually-hidden-file {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

fieldset {
  margin: 0.65rem 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

fieldset label {
  font-weight: 500;
  margin-top: 0.3rem;
}

.advanced-filters {
  margin-top: 0.55rem;
  padding: 0.2rem 0;
}

.advanced-filters > summary,
.check-help > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.advanced-filters > summary::-webkit-details-marker,
.check-help > summary::-webkit-details-marker {
  display: none;
}

.advanced-filters > summary::after,
.check-help > summary::after {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform 140ms ease;
  opacity: 0.75;
  margin-top: -0.15rem;
}

.advanced-filters[open] > summary::after,
.check-help[open] > summary::after {
  transform: rotate(225deg);
  margin-top: 0.1rem;
}

.summary-title {
  display: inline-flex;
  align-items: center;
}

.row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 0.6rem;
}

.row.compact {
  margin-top: 0.45rem;
}

button,
.exports a,
.chip {
  padding: 0.42rem 0.72rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  font-weight: 600;
  transition: background 120ms ease, border-color 120ms ease, color 120ms ease, transform 120ms ease;
}

button:hover,
.exports a:hover {
  transform: translateY(-1px);
}

.btn-primary,
button[type="submit"] {
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-ink);
}

.exports a {
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-ink);
}

.btn-primary:hover,
button[type="submit"]:hover {
  background: color-mix(in srgb, var(--accent) 90%, #000);
  border-color: color-mix(in srgb, var(--accent) 90%, #000);
}

.btn-secondary,
button[type="button"],
#close-diff,
#close-checks {
  border: 1px solid var(--line-strong);
  background: color-mix(in srgb, var(--panel) 88%, var(--bg));
  color: var(--accent);
}

.toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.btn-icon {
  width: 0.62rem;
  height: 0.62rem;
  border-radius: 2px;
  border: 1.5px solid currentColor;
  position: relative;
}

.btn-icon::after {
  content: "";
  position: absolute;
  right: -0.26rem;
  top: 0.14rem;
  width: 0.26rem;
  height: 0.26rem;
  border-top: 1.5px solid currentColor;
  border-right: 1.5px solid currentColor;
  transform: rotate(45deg);
}

.btn-secondary:hover,
button[type="button"]:hover,
#close-diff:hover,
#close-checks:hover {
  border-color: color-mix(in srgb, var(--accent) 25%, var(--line-strong));
  background: color-mix(in srgb, var(--panel) 70%, var(--bg));
}

.theme-toggle {
  min-width: 132px;
}

.status {
  margin-top: 0.6rem;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.1rem;
}

.status-info {
  color: var(--muted);
}

.status-ok {
  color: color-mix(in srgb, var(--accent) 88%, var(--ink));
}

.status-warn {
  color: #b45309;
}

.status-error {
  color: var(--danger);
}

.parse-issues {
  margin-top: 0.45rem;
  padding: 0.5rem 0.55rem;
  border: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--panel) 84%, var(--bg));
}

.parse-issues strong {
  display: block;
  font-size: 0.86rem;
  color: var(--muted);
}

#parse-issues-list {
  margin: 0.35rem 0 0;
  padding-left: 1rem;
}

#parse-issues-list li {
  margin: 0.2rem 0;
  font-size: 0.84rem;
  color: var(--ink);
  word-break: break-word;
}

.tool-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.65rem;
}

.field-hint {
  margin: 0.32rem 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.path-result {
  margin-top: 0.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.55rem;
  background: color-mix(in srgb, var(--panel) 88%, var(--bg));
  color: var(--muted);
  font-size: 0.84rem;
  word-break: break-word;
}

.path-steps {
  margin-top: 0.45rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
}

.path-step {
  border: 1px solid var(--line-strong);
  background: color-mix(in srgb, var(--panel) 86%, var(--bg));
  color: var(--ink);
  border-radius: 999px;
  padding: 0.2rem 0.48rem;
  font-size: 0.78rem;
}

.path-step:hover {
  border-color: color-mix(in srgb, var(--accent) 35%, var(--line-strong));
  background: color-mix(in srgb, var(--accent) 12%, var(--panel));
}

.path-arrow {
  color: var(--muted);
  font-size: 0.8rem;
}

.graph-panel {
  display: flex;
  flex-direction: column;
  position: relative;
}

.toolbar {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  flex-wrap: wrap;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

.kbd-hint {
  margin-left: auto;
  font-size: 0.78rem;
  color: var(--muted);
}

.kbd-hint kbd {
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  border-radius: 6px;
  padding: 0.08rem 0.3rem;
  background: color-mix(in srgb, var(--panel) 85%, var(--bg));
  color: var(--ink);
  font-family: var(--font-sans);
}

.toolbar select {
  width: auto;
  margin-top: 0;
  padding: 0.25rem 0.4rem;
}

.toolbar button {
  padding: 0.25rem 0.55rem;
  font-size: 0.85rem;
}

.chips {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  margin-bottom: 0.45rem;
  min-height: 1.7rem;
}

.chip {
  background: var(--chip);
  color: var(--muted);
  border: 1px solid var(--line);
  font-weight: 600;
  padding: 0.22rem 0.5rem;
}

.legend {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.85rem;
  margin-bottom: 0.45rem;
}

.dot {
  width: 10px;
  height: 10px;
  display: inline-block;
  border-radius: 50%;
  margin-right: 0.3rem;
  border: 1px solid rgba(15, 23, 42, 0.18);
}

.kind-workload {
  background: #0f766e;
}

.kind-network {
  background: #2563eb;
}

.kind-config {
  background: #14b8a6;
}

.kind-secret {
  background: #dc2626;
}

.kind-group {
  background: #7c3aed;
}

.health-warning {
  background: #f59e0b;
}

#graph-canvas {
  width: 100%;
  flex: 1;
  min-height: 620px;
  border: 1px dashed var(--line);
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, var(--canvas-top), var(--canvas-bottom));
}

.graph-overlay,
.no-match {
  position: absolute;
  top: 46%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: color-mix(in srgb, var(--panel) 94%, transparent);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.85rem;
  min-width: min(420px, 85%);
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
}

.graph-overlay span,
.no-match span {
  color: var(--muted);
  font-size: 0.9rem;
}

.details-panel pre {
  max-height: 72vh;
  overflow: auto;
  background: var(--code-bg);
  color: var(--code-ink);
  padding: 0.7rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--line) 30%, transparent);
}

.sensitive {
  color: var(--danger);
  font-weight: 700;
}

.hidden {
  display: none;
}

.edge-label {
  font-size: 10px;
  fill: var(--muted);
  pointer-events: none;
  user-select: none;
}

.findings-list {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0;
  max-height: 55vh;
  overflow: auto;
}

.findings-list li {
  padding: 0.35rem 0.45rem;
  margin-bottom: 0.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-xs);
  font-size: 0.85rem;
  background: color-mix(in srgb, var(--panel) 90%, var(--bg));
}

.finding-error {
  border-color: #ef4444;
}

.finding-warning {
  border-color: #f59e0b;
}

.check-help {
  margin-bottom: 0.55rem;
}

.check-help p {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.check-config {
  max-height: 220px;
  overflow: auto;
}

.collapse-controls {
  margin-top: 0.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0.45rem;
  background: color-mix(in srgb, var(--panel) 85%, var(--bg));
}

.collapse-controls label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.25rem;
}

.search-suggest {
  margin-top: 0.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--panel) 94%, var(--bg));
  padding: 0.25rem;
  box-shadow: var(--shadow-sm);
}

.suggest-item {
  width: 100%;
  text-align: left;
  border: 1px solid transparent;
  background: transparent;
  color: var(--ink);
  padding: 0.38rem 0.45rem;
  border-radius: var(--radius-xs);
  cursor: pointer;
}

.suggest-item:hover,
.suggest-item.active {
  border-color: var(--line);
  background: color-mix(in srgb, var(--accent) 10%, var(--panel));
}

.edge-tooltip {
  position: absolute;
  pointer-events: none;
  background: var(--tooltip-bg);
  color: var(--tooltip-ink);
  border: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  border-radius: var(--radius-xs);
  padding: 0.35rem 0.45rem;
  font-size: 0.78rem;
  max-width: 280px;
  z-index: 20;
  white-space: pre-line;
}

.minimap-wrap {
  position: absolute;
  right: 0.9rem;
  bottom: 0.9rem;
  width: 220px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--panel) 92%, var(--bg));
  box-shadow: var(--shadow-sm);
  padding: 0.35rem;
}

.minimap-wrap strong {
  font-size: 0.78rem;
  color: var(--muted);
}

#minimap-canvas {
  margin-top: 0.3rem;
  width: 100%;
  height: 132px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--canvas-top) 70%, var(--canvas-bottom));
  cursor: crosshair;
}

.modal {
  position: fixed;
  inset: 0;
  background: var(--overlay);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 40;
}

.modal.hidden {
  display: none;
}

.modal-card {
  width: min(780px, 92vw);
  max-height: 88vh;
  overflow: auto;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 0.8rem;
  box-shadow: var(--shadow-md);
}

.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.diff-output {
  margin-top: 0.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  font-size: 0.85rem;
  max-height: 220px;
  overflow: auto;
  background: color-mix(in srgb, var(--panel) 88%, var(--bg));
}

@media (max-width: 1280px) {
  .layout {
    grid-template-columns: 300px 1fr;
  }

  .details-panel {
    grid-column: 1 / -1;
  }
}

@media (max-width: 980px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .theme-toggle {
    align-self: flex-end;
  }

  .layout {
    grid-template-columns: 1fr;
  }

  #graph-canvas {
    min-height: 420px;
  }

  .kbd-hint {
    width: 100%;
    margin-left: 0;
  }

  .minimap-wrap {
    position: static;
    width: 100%;
    margin-top: 0.5rem;
  }
}