/* Product-level renderer refinements layered over the local shell. */
/* Keep the desktop shell pinned to the native WebView viewport. The
 * renderer is also used on Windows machines with non-default scaling, where
 * a bare 100vh grid can leave the navigation column shorter than the window. */
html,
body {
  height: 100%;
  min-height: 100%;
  overflow: hidden;
}

.shell {
  height: 100%;
  min-height: 100%;
  overflow: hidden;
}

.nav {
  height: 100%;
  min-height: 0;
  background: var(--surface);
}

main {
  height: 100%;
  min-height: 0;
  background: var(--surface);
}

/* Navigation and page content share the same light paper surface. */
.nav .nav-item,
.nav .gear { background: transparent; }
.nav .nav-item:hover,
.nav .nav-item.active,
.nav .gear:hover { background: var(--surface-muted); }
.page > section > .header { background: var(--surface); }

@supports (height: 100dvh) {
  .shell,
  .nav,
  main {
    height: 100dvh;
  }
}

.toggle-control {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  line-height: 1;
}

.toggle-track {
  box-sizing: border-box;
  width: 44px;
  height: 24px;
  border-radius: 999px;
}

.toggle-track::after {
  top: 2px;
  left: 2px;
  box-sizing: border-box;
  width: 18px;
  height: 18px;
}

.toggle-label {
  display: inline-flex;
  height: 24px;
  align-items: center;
  line-height: 24px;
}

.startup-row .toggle-control {
  min-width: 108px;
}

/* The visually hidden checkbox must be contained by its toggle; otherwise focusing it scrolls the overflow-hidden shell. */
.toggle-control { position: relative; }
.toggle-control input { position: absolute; left: 0; top: 0; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
html, body { overflow: hidden; }

.brand-mark { background-image: var(--brand-logo-image); }
.window-drag { position: fixed; top: 0; left: 80px; right: 0; height: 38px; z-index: 1000; }
.platform-darwin body:before { display: none; }
.input-fields { margin-top: 12px; }
.toggle-control:focus-within .toggle-track { outline: 2px solid var(--accent); outline-offset: 2px; }
#nav-state { font-size: 12px; }
@media(prefers-reduced-motion:reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }

@font-face {
  font-family: "DM Sans";
  src: url("assets/fonts/DMSans-Variable.woff2") format("woff2");
  font-weight: 100 1000;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Noto Sans SC";
  src: url("assets/fonts/NotoSansSC-Variable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

/* Keep the paper palette, with lighter system typography and explicit control states. */
:root {
  --bg: #f5f4ed;
  --surface: #f5f4ed;
  --surface-muted: #e8e6dc;
  --surface-raised: #faf9f5;
  --ink: #141413;
  --sub: #504e49;
  --muted: #6b6a64;
  --line: #dedcd2;
  --line-strong: #8e8b80;
  --accent: #141413;
  --accent-soft: #e8e6dc;
  --font-family: "DM Sans", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --heading-font: var(--font-family);
  font-family: var(--font-family);
}
body, button, input, select, textarea { font-family: var(--font-family); }
body { font-weight: 400; letter-spacing: 0; -webkit-font-smoothing: antialiased; }
h1, h2, h3, .brand { font-weight: 500; letter-spacing: 0; }
h1, h2, #settings-page .settings-editor-heading h3 {
  font-family: var(--heading-font);
  font-weight: 500;
}
button, strong, .field, .source-field label, .computer-name,
.choice-title, .nav-item.active, .step.active,
.route-value, .source-value, .node-name, .queue-device strong,
.switch-label, .switch-title strong, .switch-port strong,
.port-card .node-name, .port-card.current .port-state,
.port-card.next .port-state, .summary-mark,
.response-copy label, .response-copy strong, .toggle-label {
  font-weight: 500;
}
input, select { font-weight: 400; }

/* Native select semantics retain keyboard navigation and the platform option menu. */
#settings-page select {
  appearance: none;
  -webkit-appearance: none;
  min-height: 36px;
  padding: 8px 36px 8px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  background-color: var(--surface);
  background-image: url("assets/select-chevron.svg");
  background-position: right 10px center;
  background-size: 14px 14px;
  background-repeat: no-repeat;
  color: var(--ink);
  font-size: 13px;
  font-weight: 400;
  line-height: 18px;
  text-align: left;
  cursor: pointer;
  transition: border-color .12s ease, background-color .12s ease;
}
#settings-page select:hover { border-color: var(--ink); }
#settings-page select:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
#settings-page select:disabled { cursor: not-allowed; opacity: .5; }
#settings-page .response-copy { min-width: 0; }
#settings-page .response-copy label, #settings-page .response-copy strong { font-weight: 500; }
#settings-page .response-select { flex: 0 0 auto; }

/* Settings: open paper sections, one shared form rhythm, and a scrolling body. */
#settings-page {
  --settings-item-gap: 32px;
  --settings-control-height: 44px;
  padding-bottom: 48px;
}
#settings-page > .header { background: var(--surface); }
#settings-page > .header {
  min-height: 106px;
  padding-bottom: 24px;
  margin-bottom: 0;
  border-bottom: 1px solid var(--line);
}
#settings-page .settings-section {
  padding: 36px 0 44px;
  border-bottom: 1px solid var(--line);
}
#settings-page .settings-section:last-child { border-bottom: 0; }
#settings-page .settings-section-heading,
#settings-page .panel-title,
#settings-page .settings-editor-heading {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
}
#settings-page .settings-section-heading {
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
}
#settings-page h2 { font-size: 21px; line-height: 28px; }
#settings-page h3 { font-size: 17px; line-height: 24px; }
#settings-page .settings-grid {
  grid-template-columns: minmax(220px, .8fr) minmax(0, 1.3fr);
  gap: 32px;
}
#settings-page .settings-computers > .panel-title { justify-content: space-between; margin: 0 0 20px; gap: 8px; }
#settings-page .settings-editor { min-width: 0; padding-left: 32px; border-left: 1px solid var(--line); }
#settings-page .settings-editor > .settings-editor-heading { margin-bottom: 20px; }
#settings-page .settings-editor > .settings-editor-heading h3 { font-size: 21px; line-height: 28px; }
#settings-page .settings-tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 3px;
  background: var(--surface-muted);
  color: var(--sub);
  font-size: 12px;
  line-height: 20px;
  font-weight: 400;
  white-space: nowrap;
}
#settings-page .computer-row.selected .settings-tag { background: var(--surface); }
#settings-page .settings-tag[hidden] { display: none; }
#settings-page .computer-copy .settings-tag { margin-left: 10px; }
#settings-page .settings-text-button {
  min-height: 32px;
  padding: 4px 0;
  border: 0;
  background: transparent;
  color: var(--sub);
  font-size: 12px;
  white-space: nowrap;
}
#settings-page #add-computer { color: var(--ink); }
#settings-page .settings-text-button:hover { background: transparent; color: var(--ink); text-decoration: underline; }
#settings-page .computer-row {
  gap: 12px;
  min-height: 84px;
  padding: 0 12px;
  margin-bottom: 12px;
  border: 0;
  border-radius: 3px;
}
#settings-page .computer-row.selected { background: var(--surface-muted); }
#settings-page .computer-select {
  display: flex;
  flex: 1;
  min-width: 0;
  align-items: center;
  gap: 16px;
  min-height: 84px;
  padding: 12px 0;
  text-align: left;
  border: 0;
  background: transparent;
}
#settings-page .computer-select:hover { background: transparent; color: var(--ink); }
#settings-page .computer-select svg { width: 26px; height: 26px; flex: 0 0 26px; fill: none; stroke: currentColor; stroke-width: 1.6; }
#settings-page .computer-copy { display: grid; min-width: 0; gap: 6px; }
#settings-page .computer-copy > span:first-child { overflow-wrap: anywhere; }
#settings-page .computer-name { font-size: 14px; }
#settings-page .form-grid { grid-template-columns: minmax(0, 1fr); gap: var(--settings-item-gap); }
#settings-page .field { gap: 10px; font-size: 14px; }
#settings-page input,
#settings-page select {
  min-height: var(--settings-control-height);
  height: var(--settings-control-height);
  padding-top: 10px;
  padding-bottom: 10px;
  border-radius: 3px;
  font-size: 14px;
}
#settings-page .form-section { padding: 0; margin-top: var(--settings-item-gap); border: 0; }
#settings-page .input-fields { display: grid; gap: var(--settings-item-gap); margin-top: var(--settings-item-gap); }
#settings-page .settings-input-row {
  grid-template-columns: minmax(0, 1fr) 168px;
  align-items: center;
  gap: 24px;
  min-height: var(--settings-control-height);
}
#settings-page .settings-empty { margin: 0; color: var(--sub); font-size: 13px; }
#settings-page .follow-fields { display: grid; gap: var(--settings-item-gap); margin-top: var(--settings-item-gap); }
#settings-page .form-section > .hint { margin: 6px 0 0; font-size: 13px; }
#settings-page .response-panel { overflow: visible; }
#settings-page .settings-section > .panel-title { padding: 0; margin: 0 0 var(--settings-item-gap); border: 0; }
#settings-page .response-list { display: grid; gap: var(--settings-item-gap); }
#settings-page .response-row {
  min-height: var(--settings-control-height);
  padding: 0;
  grid-template-columns: minmax(0, 1fr) 168px;
  gap: 24px;
  border: 0;
}
#settings-page .response-copy label,
#settings-page .response-copy strong { font-size: 14px; }
#settings-page .response-select { width: 168px; }
#settings-page .settings-background-note { margin-top: var(--settings-item-gap); color: var(--sub); font-size: 13px; }
#settings-page .toggle-control input { width: 1px; height: 1px; min-height: 0; padding: 0; }
#settings-page .update-settings { margin: 0; padding: 36px 0; border: 0; border-top: 1px solid var(--line); background: transparent; }
#settings-page .update-settings > .panel-title { align-items: center; margin-bottom: 24px; }

#local-input-confirmation {
  width: min(440px, calc(100vw - 48px));
  padding: 28px;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 4px;
}
#local-input-confirmation::backdrop { background: rgba(0, 0, 0, .22); }
#local-input-confirmation h2 { font-size: 18px; }
#local-input-confirmation p { margin-top: 16px; color: var(--sub); line-height: 1.7; overflow-wrap: anywhere; }
.confirmation-actions { display: flex; justify-content: flex-end; gap: 12px; margin-top: 28px; }

@media (max-width: 900px) {
  #settings-page .settings-grid { grid-template-columns: minmax(180px, .7fr) minmax(0, 1fr); gap: 24px; }
  #settings-page .settings-editor { padding-left: 24px; }
  #settings-page .computer-row { padding: 0 8px; gap: 8px; }
  #settings-page .computer-select { gap: 10px; }
}
@media (max-width: 680px) {
  #settings-page .settings-grid { grid-template-columns: 1fr; gap: 32px; }
  #settings-page .settings-editor { padding: 32px 0 0; border-left: 0; border-top: 1px solid var(--line); }
  #settings-page .settings-section-heading { flex-wrap: wrap; }
  #settings-page .settings-input-row,
  #settings-page .response-row { grid-template-columns: minmax(0, 1fr) 132px; gap: 16px; }
  #settings-page .response-select { width: 132px; }
}

/* Paper headings and open sections leave borders to controls and connections. */
.nav { border-right-color: var(--line); }
.nav-item.active::before { width: 1px; top: 10px; bottom: 10px; }
.nav-item.active { border-radius: 3px; }
.nav .nav-state { flex: 1; min-width: 0; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; overflow-wrap: normal; line-height: 1.5; }
.nav-bottom { gap: 6px; padding-left: 6px; padding-right: 6px; }
@media (max-width: 850px) {
  .nav-bottom { gap: 4px; padding-left: 3px; padding-right: 3px; }
  .nav .gear { width: 32px; min-width: 32px; }
  .nav #nav-state { font-size: 11px; letter-spacing: -.02em; }
}
.page > section > .header { min-height: 104px; margin-bottom: 28px; border-color: var(--line); }
.header h1 { font-size: 30px; line-height: 1.3; }
.header .sub { margin-top: 8px; font-size: 13px; }
.panel { margin: 28px 0; padding: 24px 0; border: 0; border-top: 1px solid var(--line); background: transparent; }
.panel-title { align-items: center; margin-bottom: 20px; }
.panel h2 { font-size: 21px; }
.monitor-table th { padding: 12px 8px; }
.monitor-table td { padding: 18px 8px; }
.last .sub { margin-top: 8px; max-width: 48ch; line-height: 1.65; }
.topology-head { padding: 20px 0 24px; border: 0; gap: 24px; }
.topology-head p { margin-top: 8px; color: var(--sub); font-size: 13px; }
.switch-board { border: 0; background: var(--surface-raised); border-radius: 4px; }
.switch-board-scroll { padding: 28px 24px; }
.switch-board-inner { min-width: calc(var(--port-count) * 128px + 128px); }
.switch-chassis { grid-template-columns: 112px minmax(0, 1fr); min-height: 110px; padding: 16px; border-width: 1px; border-color: var(--line-strong); background: var(--surface-muted); }
.switch-chassis::before, .switch-chassis::after { display: none; }
.switch-title { padding-left: 0; }
.switch-title strong { font-size: 17px; letter-spacing: 0; }
.switch-ports, .port-grid { grid-template-columns: repeat(var(--port-count), minmax(112px, 1fr)); gap: 16px; }
.port-grid { padding: 32px 0 0 112px; }
.port-card { min-height: 0; gap: 6px; padding: 14px 12px; border-radius: 3px; background: var(--surface-raised); }
.port-card.current, .port-card.next { border-width: 1px; padding: 14px 12px; }
.port-card .port-index,
.port-card .node-name,
.port-card .port-state { font-family: var(--font-family); font-weight: 500; }
.port-card .computer-icon { width: 32px; height: 32px; flex: 0 0 32px; margin: 0; }
.port-card.current { border-color: var(--ink); }
.port-card::before { height: 33px; border-color: var(--line-strong); }
.port-state { border: 0; background: var(--surface-muted); border-radius: 2px; }
.port-card.next .port-state { border: 0; background: var(--surface-muted); }
.port-card .port-state { min-height: 30px; margin-top: 0; padding: 6px 8px; }
.switch-summary { border-color: var(--line); padding: 16px 24px; }
.summary-mark { display: none; }
.wizard { padding: 28px 0; border: 0; }
.wizard-head h1 { font-size: 24px; line-height: 1.4; }
.wizard-head .sub { line-height: 1.7; }
.value-list { gap: 16px; }
.value-row { padding: 18px 16px; border: 0; background: var(--surface-raised); }
.choice { padding: 20px; border-color: var(--line); background: var(--surface-raised); }
.choice.selected { border-color: var(--line-strong); }
.local-tip, .callout { border-left: 0; border-radius: 3px; padding: 16px; }
.test-status { padding: 24px; border-color: var(--line); background: var(--surface-raised); }
.event { padding-top: 18px; padding-bottom: 18px; }
/* Recent events use the page scroll; short lists must not create a nested scroller. */
#diagnostics-page .event-box { max-height: none; overflow: visible; }
#diagnostics-page .event > div { min-width: 0; overflow-wrap: anywhere; }
.toggle-control:active .toggle-track { border-color: var(--ink); }
@media (max-width: 900px) {
  .switch-board-scroll { padding: 24px 16px; }
  .switch-chassis { grid-template-columns: 96px minmax(0, 1fr); }
  .port-grid { padding-left: 96px; }
  #settings-page .settings-grid { grid-template-columns: 1fr; gap: 28px; }
  #settings-page .settings-editor { padding: 28px 0 0; border-left: 0; border-top: 1px solid var(--line); }
}