:root {
  color-scheme: light;
  --window-bg: #eef3f9;
  --chrome: #eef3f9;
  --chrome-line: #cfd8e3;
  --control: #eeeeee;
  --control-border: #777f88;
  --tab-line: #9da7b4;
  --paper: #ffffff;
  --rail: #f2f5f9;
  --ink: #121826;
  --muted: #445168;
  --blue: #e8f2ff;
  --blue-strong: #0b4d96;
  --green: #28d79f;
  --line: #d2dceb;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  overflow: hidden;
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: 14px;
  color: var(--ink);
  background: var(--window-bg);
}

button,
input,
select {
  font: inherit;
}

.app-window {
  display: flex;
  flex-direction: column;
  width: 100vw;
  min-width: 820px;
  height: 100vh;
  background: var(--window-bg);
}

.title-bar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 8px;
  min-height: 28px;
  padding: 4px 10px;
  color: #0f172a;
  background: #f7fafc;
  border-bottom: 1px solid #d7dde6;
  font-size: 13px;
}

.app-icon {
  width: 14px;
  height: 14px;
  border: 1px solid #7793a8;
  background: linear-gradient(135deg, #5ed7ff, #28d79f);
}

.window-controls {
  letter-spacing: 10px;
  color: #111827;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  align-items: center;
  padding: 6px 8px 3px;
  background: var(--chrome);
}

.toolbar button {
  min-width: 104px;
  min-height: 31px;
  padding: 5px 10px;
  border: 1px solid var(--control-border);
  color: #111827;
  background: var(--control);
  cursor: pointer;
}

.toolbar button:disabled {
  color: #8b94a3;
  border-color: #aeb6c0;
  background: #f8fafc;
  cursor: default;
}

.toolbar button:active {
  transform: translateY(1px);
}

.toolbar-label {
  margin-left: 4px;
  color: #111827;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  padding: 0 8px 5px;
  background: var(--chrome);
  border-bottom: 1px solid var(--chrome-line);
}

.filter-row input,
.filter-row select {
  height: 24px;
  border: 1px solid #a8b1bf;
  background: #ffffff;
}

.filter-row input {
  width: 172px;
}

.filter-row select {
  min-width: 78px;
}

.filter-row .wide-input {
  flex: 1 1 260px;
}

.filter-row label,
.result-count,
.status-line {
  color: #111827;
  font-size: 13px;
}

.status-line {
  min-height: 22px;
  margin: 0;
  padding: 2px 8px 5px;
  background: var(--chrome);
  border-bottom: 1px solid var(--chrome-line);
}

.tab-strip {
  display: flex;
  align-items: flex-end;
  min-height: 28px;
  padding-left: 0;
  background: var(--chrome);
  border-bottom: 1px solid var(--tab-line);
}

.tab-strip button {
  min-height: 27px;
  padding: 4px 8px;
  border: 1px solid var(--tab-line);
  border-bottom: 0;
  border-radius: 0;
  color: #111827;
  background: #edf1f6;
  cursor: pointer;
}

.tab-strip button.active {
  position: relative;
  top: 1px;
  background: #ffffff;
  font-weight: 500;
}

.content-shell {
  flex: 1;
  display: grid;
  grid-template-columns: 135px minmax(0, 1fr) 150px;
  overflow: hidden;
  background: #ffffff;
}

.content-shell::before,
.content-shell::after {
  content: "";
  background: var(--rail);
  border-right: 1px solid var(--line);
}

.content-shell::after {
  border-right: 0;
  border-left: 1px solid var(--line);
}

.view-panel {
  grid-column: 2;
  overflow: auto;
  padding: 0 18px 40px;
  background: var(--paper);
}

.hidden { display: none; }

.lead {
  margin: 0 0 20px;
  padding-top: 8px;
  font-size: 16px;
  color: #273244;
}

.health-badge {
  display: inline-block;
  margin: 0 0 24px 12px;
  padding: 7px 10px;
  border-radius: 5px;
  color: var(--blue-strong);
  background: var(--blue);
  font-weight: 700;
}

h2,
h3 {
  color: #111827;
}

h2 {
  margin: 22px 0 10px;
  font-size: 17px;
}

h3 {
  margin: 0 0 8px;
  font-size: 15px;
}

ul {
  margin: 0 0 20px 24px;
  padding-left: 16px;
  line-height: 1.75;
}

.two-column,
.reason-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 26px;
}

.classification-card,
.reason-grid section {
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 16px;
  background: #fbfdff;
}

.classification-label {
  display: inline-block;
  margin-bottom: 10px;
  padding: 6px 9px;
  border-radius: 4px;
  color: var(--blue-strong);
  background: var(--blue);
  font-weight: 700;
}

.graph-canvas {
  position: relative;
  width: min(720px, 100%);
  min-height: 360px;
  margin-top: 18px;
  border: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(11, 77, 150, 0.08) 1px, transparent 1px),
    linear-gradient(0deg, rgba(11, 77, 150, 0.08) 1px, transparent 1px),
    #fbfdff;
  background-size: 34px 34px;
}

.graph-canvas::before,
.graph-canvas::after {
  content: "";
  position: absolute;
  left: 120px;
  right: 120px;
  top: 52%;
  height: 3px;
  background: #4f83b8;
  transform: rotate(16deg);
}

.graph-canvas::after {
  transform: rotate(-18deg);
  background: #28a780;
}

.node {
  position: absolute;
  display: grid;
  width: 92px;
  height: 58px;
  place-items: center;
  border: 1px solid #90a4bb;
  border-radius: 4px;
  background: #ffffff;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.12);
  font-weight: 700;
}

.node.process { left: 80px; top: 175px; }
.node.file { left: 292px; top: 72px; }
.node.network { right: 92px; top: 190px; }
.node.report { left: 330px; bottom: 42px; }

.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
}

.event-table,
.simple-table {
  width: 100%;
  min-width: 960px;
  border-collapse: collapse;
  background: #ffffff;
  font-size: 13px;
}

.event-table th,
.event-table td,
.simple-table th,
.simple-table td {
  border: 1px solid var(--line);
  padding: 8px;
  text-align: left;
  vertical-align: top;
}

.event-table th,
.simple-table th {
  background: #eaf0f7;
  font-weight: 600;
}

.event-table tbody tr:nth-child(even),
.simple-table tbody tr:nth-child(even) {
  background: #fbfdff;
}

@media (max-width: 900px) {
  body { overflow: auto; }
  .app-window { min-width: 0; height: auto; min-height: 100vh; }
  .content-shell { grid-template-columns: 1fr; overflow: visible; }
  .content-shell::before,
  .content-shell::after { display: none; }
  .view-panel { grid-column: 1; overflow: visible; }
  .two-column,
  .reason-grid { grid-template-columns: 1fr; }
  .toolbar button { min-width: 120px; }
}

@media (max-width: 520px) {
  .toolbar button { flex: 1 1 135px; }
  .filter-row input,
  .filter-row select,
  .filter-row .wide-input { flex: 1 1 100%; width: 100%; }
  .tab-strip { overflow-x: auto; }
  .view-panel { padding: 0 12px 28px; }
}