:root {
  color-scheme: light;
  --bg: #e8eaed;
  --panel: #f7f8fa;
  --surface: #ffffff;
  --surface-muted: #f1f3f5;
  --border: #cfd4da;
  --border-strong: #b8bec6;
  --text: #1f252c;
  --muted: #626b75;
  --accent: #1f5fa8;
  --accent-soft: #e6eef8;
  --ok: #1a7f37;
  --warn: #9a6700;
  --error: #cf222e;
  --sans: "Segoe UI", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;
  --mono: "Cascadia Mono", Consolas, "Courier New", monospace;
  --header-height: 56px;
  --toolbar-height: 38px;
  --status-height: 24px;
  --nav-width: 200px;
  --properties-width: 260px;
  --results-width: 240px;
}

* { box-sizing: border-box; }

html, body { width: 100%; height: 100%; margin: 0; }

body {
  min-width: 1180px;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.35;
  font-variant-numeric: tabular-nums;
}

button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button:focus-visible, input:focus-visible, select:focus-visible, a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

#app {
  display: grid;
  grid-template-rows: var(--header-height) var(--toolbar-height) minmax(0, 1fr) var(--status-height);
  width: 100vw;
  height: 100vh;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 0 14px;
  background: var(--surface);
  border-bottom: 1px solid var(--border-strong);
}

.brand-block, .header-context, .header-actions, .toolbar-actions, .toolbar-context,
.viewport-header, .viewport-toolbar, .status-bar, .history-actions, .pagination {
  display: flex;
  align-items: center;
}

.brand-block { min-width: 290px; gap: 9px; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 27px;
  height: 27px;
  color: var(--surface);
  background: var(--accent);
  border: 1px solid #164d88;
  border-radius: 2px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .04em;
}
.brand-name { font-size: 15px; font-weight: 650; letter-spacing: .01em; }
.brand-subtitle { color: var(--muted); font-size: 11px; }
.menu-strip { display: flex; align-items: center; gap: 18px; margin-right: auto; color: #4e5862; font-size: 11px; }
.menu-strip span { cursor: default; }
.header-context { gap: 8px; color: var(--muted); }
.context-label, .toolbar-label, .panel-kicker, .nav-group-label, .nav-footer-label {
  color: var(--muted);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .1em;
}
.context-divider { width: 1px; height: 16px; background: var(--border); margin: 0 5px; }
.header-actions { gap: 6px; }

.global-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-width: 0;
  padding: 0 12px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.toolbar-context { min-width: 0; gap: 10px; }
.toolbar-value { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.toolbar-actions { gap: 6px; }

.workbench-main {
  display: grid;
  grid-template-columns: var(--nav-width) var(--properties-width) minmax(0, 1fr) var(--results-width);
  min-height: 0;
  overflow: hidden;
}

.left-navigation, .properties-panel, .results-panel {
  min-width: 0;
  min-height: 0;
  overflow: auto;
}
.left-navigation {
  display: flex;
  flex-direction: column;
  padding: 14px 0;
  background: #eef0f2;
  border-right: 1px solid var(--border);
}
.nav-group { padding: 0 0 16px; }
.nav-group-label { padding: 0 13px 7px; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  min-height: 29px;
  padding: 5px 13px;
  color: var(--text);
  background: transparent;
  border: 0;
  border-left: 3px solid transparent;
  text-align: left;
  cursor: pointer;
}
.nav-item:hover { background: #e4e7ea; }
.nav-item.is-active {
  color: #123e6c;
  background: var(--accent-soft);
  border-left-color: var(--accent);
  font-weight: 650;
}
.nav-index { width: 18px; color: #89919a; font-family: var(--mono); font-size: 9px; }
.nav-item.is-active .nav-index { color: var(--accent); }
.nav-footer {
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin-top: auto;
  padding: 12px 13px 0;
  border-top: 1px solid var(--border);
}
.nav-footer-label { font-size: 8px; }
.nav-footer .mono { color: var(--muted); font-size: 9px; }

.properties-panel, .results-panel { padding: 13px 12px; background: var(--panel); }
.properties-panel { border-right: 1px solid var(--border); }
.results-panel { border-left: 1px solid var(--border); }
.panel-heading {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  min-height: 22px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.panel-heading .mono { max-width: 52%; overflow: hidden; color: var(--muted); font-size: 9px; text-overflow: ellipsis; white-space: nowrap; }
.property-section { padding: 13px 0 15px; border-bottom: 1px solid var(--border); }
.property-section:last-child { border-bottom: 0; }
.section-title { margin-bottom: 9px; color: #3c4650; font-size: 11px; font-weight: 700; }
.section-title-spaced { margin-top: 15px; }
.section-note { margin: -3px 0 11px; color: var(--muted); font-size: 11px; }
.field-label { display: block; margin: 9px 0 4px; color: var(--muted); font-size: 10px; }
.control {
  width: 100%;
  min-height: 28px;
  padding: 4px 7px;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: 2px;
}
.control:hover { border-color: #8f98a2; }
.control:disabled { color: #8a9198; background: var(--surface-muted); cursor: not-allowed; }
.numeric { font-family: var(--mono); }
.input-with-unit { display: flex; align-items: center; gap: 6px; }
.input-with-unit .control { min-width: 0; }
.input-with-unit > span { min-width: 28px; color: var(--muted); font-family: var(--mono); font-size: 10px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 27px;
  padding: 4px 9px;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: 2px;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
}
.button:hover:not(:disabled):not(.is-disabled) { background: #f0f3f6; border-color: #8f98a2; }
.button:active:not(:disabled):not(.is-disabled) { background: #e4e9ef; }
.button:disabled, .button.is-disabled { color: #9299a1; background: var(--surface-muted); cursor: not-allowed; opacity: .85; }
.button-primary { color: var(--surface); background: var(--accent); border-color: #164d88; font-weight: 650; }
.button-primary:hover:not(:disabled) { color: var(--surface); background: #194f8d; }
.button-secondary { color: #164d88; background: var(--accent-soft); border-color: #a9c2df; }
.button-quiet { min-height: 25px; padding: 3px 8px; background: transparent; border-color: transparent; }
.button-wide { width: 100%; margin-top: 14px; }
.stacked-actions { display: grid; gap: 6px; margin-top: 13px; }
.form-message { margin-top: 9px; padding: 7px 8px; color: #8d2028; background: #fff1f1; border-left: 2px solid var(--error); }
.inline-state { padding: 7px 0; color: var(--muted); font-size: 11px; }
.mono { font-family: var(--mono); }
.batch-progress-block { margin-top: 14px; padding-top: 11px; border-top: 1px solid var(--border); }
.batch-progress-label { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 6px; color: var(--muted); font-size: 10px; }
.batch-progress-label .mono { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.progress-track { height: 5px; overflow: hidden; background: #dde2e7; border: 1px solid #c8ced4; }
.progress-fill { width: 0; height: 100%; background: var(--accent); transition: width .15s linear; }

.property-list { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, auto); gap: 6px 9px; margin: 0; }
.property-list dt { min-width: 0; overflow: hidden; color: var(--muted); text-overflow: ellipsis; white-space: nowrap; }
.property-list dd { min-width: 0; max-width: 150px; margin: 0; overflow: hidden; color: var(--text); font-family: var(--mono); text-align: right; text-overflow: ellipsis; white-space: nowrap; }
.property-list-small { font-size: 10px; }
.property-list-small dd { max-width: 145px; }
.status-good { color: var(--ok); }
.status-warn { color: var(--warn); }
.status-error { color: var(--error); }
.status-neutral { color: var(--muted); }

.visualization-panel { display: grid; grid-template-rows: auto 34px minmax(0, 1fr); min-width: 0; min-height: 0; background: var(--bg); }
.viewport-header { justify-content: space-between; gap: 12px; padding: 13px 15px 10px; min-width: 0; }
.viewport-header h1 { margin: 3px 0 1px; font-size: 16px; font-weight: 650; }
.viewport-subtitle { margin: 0; color: var(--muted); font-size: 11px; }
.result-badge { flex: 0 0 auto; padding: 4px 7px; color: var(--muted); background: #eef0f2; border: 1px solid var(--border); font-family: var(--mono); font-size: 9px; }
.result-badge.is-ready { color: var(--ok); background: #edf7ef; border-color: #acd2b5; }
.result-badge.is-running { color: var(--accent); background: var(--accent-soft); border-color: #abc2dd; }
.viewport-toolbar { gap: 2px; padding: 4px 10px; background: var(--panel); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.viewport-toolbar .button { min-height: 24px; }
.viewport-toolbar .button.is-selected { color: #164d88; background: var(--accent-soft); border-color: #a9c2df; }
.toolbar-separator { width: 1px; height: 17px; margin: 0 5px; background: var(--border); }
.viewport-toolbar-note { margin-left: auto; color: var(--muted); font-family: var(--mono); font-size: 9px; }
.plot-surface { position: relative; min-width: 0; min-height: 0; margin: 12px; overflow: auto; background: #f4f5f6; border: 1px solid var(--border-strong); }
.result-image { display: block; margin: auto; }
.result-image.fit { width: auto; height: auto; max-width: 100%; max-height: 100%; object-fit: contain; }
.result-image.actual { width: auto; height: auto; max-width: none; max-height: none; }
.viewport-state { position: absolute; inset: 0; display: grid; place-content: center; gap: 4px; color: var(--muted); text-align: center; }
.empty-code { color: #8b939c; font-family: var(--mono); font-size: 10px; letter-spacing: .08em; }

.results-panel { overflow-y: auto; }
.results-panel .inline-state { padding-top: 15px; }
.result-section { padding: 13px 0 14px; border-bottom: 1px solid var(--border); }
.result-section:last-child { border-bottom: 0; }
.result-section .property-list dd { max-width: 128px; }
.history-actions { justify-content: space-between; margin: 11px 0; }
.history-table-wrap { overflow: auto; border: 1px solid var(--border); background: var(--surface); }
.history-table { width: 100%; border-collapse: collapse; font-size: 10px; }
.history-table th, .history-table td { padding: 6px 5px; border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap; }
.history-table th { color: var(--muted); background: var(--surface-muted); font-size: 9px; font-weight: 700; text-transform: uppercase; }
.history-table tbody tr { cursor: pointer; }
.history-table tbody tr:hover { background: var(--accent-soft); }
.history-table tbody tr:last-child td { border-bottom: 0; }
.history-table td:first-child { max-width: 72px; overflow: hidden; font-family: var(--mono); text-overflow: ellipsis; }
.pagination { justify-content: space-between; margin-top: 10px; }
.pagination .button { min-height: 24px; }

.status-bar { gap: 7px; padding: 0 10px; color: var(--muted); background: var(--surface-muted); border-top: 1px solid var(--border); font-size: 10px; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: #9aa1a8; }
.status-dot-ok { background: var(--ok); }
.status-dot-running { background: var(--accent); }
.status-dot-error { background: var(--error); }
.status-dot-neutral { background: #9aa1a8; }
.status-detail { margin-left: auto; color: #89919a; font-family: var(--mono); }

@media (min-width: 1600px) {
  :root { --nav-width: 210px; --properties-width: 280px; --results-width: 250px; }
}

@media (max-width: 1320px) {
  :root { --nav-width: 180px; --properties-width: 240px; --results-width: 220px; }
  .brand-block { min-width: 245px; }
  .header-context { gap: 5px; }
}

@media (max-width: 1220px) {
  body { font-size: 11px; }
  .viewport-header { padding-left: 11px; padding-right: 11px; }
  .plot-surface { margin: 9px; }
}