/* CAD Studio workspace: a route-level application, not a page embed. */
body.cadstudio-route {
  margin: 0;
  background: #101821;
}
body.cadstudio-route > header.site,
body.cadstudio-route > footer.site {
  display: none;
}
body.cadstudio-route > main {
  width: 100%;
  max-width: none;
  height: 100vh;
  height: 100dvh;
  min-height: 0;
  margin: 0;
  padding: 0;
}
.cadstudio-app {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  min-height: 0;
  overflow: hidden;
  background: #1c2936;
  color: #d7e1eb;
}
.cadstudio-app:fullscreen {
  width: 100vw;
  height: 100vh;
  background: #1c2936;
}

.ws-appbar {
  min-height: 48px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  padding: 0 12px;
  background: #111b26;
  border-bottom: 1px solid #0a1119;
  flex: 0 0 auto;
}
.ws-brand {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: #f1f6fb;
  text-decoration: none;
}
.ws-brand-mark {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border: 1px solid #52769b;
  color: #8fc1f5;
  font: 700 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.08em;
}
.ws-brand > span:last-child {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}
.ws-brand b {
  font-size: 13px;
  letter-spacing: 0.01em;
}
.ws-brand small {
  margin-top: 3px;
  color: #7890a7;
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.ws-project {
  justify-self: center;
  display: flex;
  align-items: baseline;
  gap: 9px;
  min-width: 0;
}
.ws-project-name {
  font-size: 12px;
  font-weight: 700;
  color: #e7eef5;
}
.ws-local {
  color: #7890a7;
  font-size: 10px;
}

.ws-local[data-state="unavailable"] {
  color: #ffb4a9;
}

.ws-local[data-state="unavailable"] i {
  background: #ff6b5f;
}

.ws-local[data-state="saving"] i {
  background: #f2c14e;
}
.ws-agent-activity {
  display: inline-grid;
  grid-template-columns: 7px auto;
  grid-template-areas: 'dot name' 'dot status';
  align-items: center;
  column-gap: 6px;
  min-height: 32px;
  margin-left: 6px;
  padding: 3px 8px;
  border: 1px solid #31516e;
  border-radius: 3px;
  background: #162433;
  color: #d9e8f5;
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.ws-agent-activity[hidden] { display: none; }
.ws-agent-activity > span {
  grid-area: dot;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #50d890;
  box-shadow: 0 0 0 3px rgb(80 216 144 / 12%);
}
.ws-agent-activity[data-state='attention'] > span { background: #f2c14e; }
.ws-agent-activity[data-state='error'] > span { background: #ff6b5f; }
.ws-agent-activity b {
  grid-area: name;
  max-width: 150px;
  overflow: hidden;
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ws-agent-activity small {
  grid-area: status;
  max-width: 180px;
  overflow: hidden;
  color: #86a0b8;
  font-size: 8px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ws-agent-pair {
  width: min(520px, calc(100vw - 32px));
  padding: 0;
  border: 1px solid #415d78;
  border-radius: 4px;
  background: #16222e;
  color: #dce8f2;
  box-shadow: 0 24px 80px rgb(0 0 0 / 55%);
}
.ws-agent-pair::backdrop { background: rgb(4 10 16 / 76%); }
.ws-agent-pair form { padding: 24px; }
.ws-agent-pair .ws-agent-kicker {
  margin: 0 0 8px;
  color: #7fbfff;
  font: 700 9px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .14em;
}
.ws-agent-pair h2 { margin: 0 0 10px; font-size: 20px; }
.ws-agent-pair p { color: #9eb2c5; line-height: 1.5; }
.ws-agent-pair dl {
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr);
  gap: 8px 12px;
  margin: 20px 0;
  padding: 14px;
  background: #101b26;
}
.ws-agent-pair dt { color: #71889f; font-size: 10px; text-transform: uppercase; }
.ws-agent-pair dd { margin: 0; overflow-wrap: anywhere; font-size: 12px; }
.ws-agent-pair form > div { display: flex; justify-content: flex-end; gap: 8px; }
.ws-agent-pair button {
  min-height: 38px;
  padding: 0 16px;
  border: 1px solid #40576c;
  border-radius: 3px;
  background: #1f2d3a;
  color: #dce8f2;
  font: inherit;
  cursor: pointer;
}
.ws-agent-pair button.primary { border-color: #2784d8; background: #1669b4; color: #fff; }
.ws-agent-pair button.ws-agent-danger { border-color: #8b4545; color: #ffb8b0; }
.ws-agent-url {
  display: grid;
  gap: 7px;
  margin: 18px 0 8px;
  color: #9eb2c5;
  font-size: 11px;
}
.ws-agent-url input {
  min-height: 40px;
  box-sizing: border-box;
  width: 100%;
  border: 1px solid #40576c;
  border-radius: 3px;
  background: #0d1822;
  color: #e7f0f7;
  padding: 0 10px;
  font: 11px/1.3 ui-monospace, SFMono-Regular, Menlo, monospace;
}
.ws-agent-inline-error { margin: 7px 0; color: #ffb8b0 !important; font-size: 11px; }
.ws-app-actions {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 4px;
}
.ws-app-actions button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 34px;
  padding: 0 10px;
  border: 1px solid transparent;
  border-radius: 3px;
  background: transparent;
  color: #cbd8e5;
  font: inherit;
  font-size: 11px;
  cursor: pointer;
}
.ws-app-icon {
  display: inline-grid;
  place-items: center;
  width: 16px;
  height: 16px;
}
.ws-app-icon .ws-icon {
  width: 16px;
  height: 16px;
}
.ws-app-actions button:hover,
.ws-app-actions button[aria-pressed='true'] {
  border-color: #3a5470;
  background: #22303f;
  color: #fff;
}

.ws-ribbon {
  display: flex;
  background: #22303f;
  border-bottom: 1px solid #141d27;
  overflow-x: auto;
  flex: 0 0 auto;
  scrollbar-width: thin;
}
.ws-group {
  display: flex;
  flex-direction: column;
  border-right: 1px solid #141d27;
  padding: 5px 8px 2px;
  flex: 0 0 auto;
}
.wsg-tools {
  display: flex;
  gap: 3px;
}
.wsg-title {
  text-align: center;
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: #7d92a8;
  margin-top: 2px;
}
.wsr-btn {
  font: inherit;
  font-size: 11px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 46px;
  min-height: 44px;
  padding: 3px 6px;
  border: 1px solid transparent;
  border-radius: 5px;
  background: none;
  color: #d7e1eb;
  cursor: pointer;
}
.wsr-btn .wsr-i {
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  margin-bottom: 1px;
  line-height: 1;
}
.ws-icon {
  display: block;
  width: 20px;
  height: 20px;
  overflow: visible;
  pointer-events: none;
}
.wsr-btn:hover {
  background: #2c3e52;
  border-color: #3a5470;
}
.wsr-btn.on,
.wsr-btn[aria-pressed='true'] {
  background: #0b5cad;
  border-color: #0b5cad;
  color: #fff;
}
.wsr-accent {
  color: #8fc1f5;
}
.wsr-file {
  position: relative;
}

.ws-main {
  position: relative;
  flex: 1;
  min-height: 0;
  display: flex;
}
#bw-studio {
  position: relative;
  flex: 1;
  min-width: 0;
  background: linear-gradient(#212f3e, #1a2634);
  overflow: hidden;
}
#bw-studio > canvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
}

.ws-side {
  flex: 0 0 264px;
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: #141d27;
  border-left: 1px solid #141d27;
  overflow-y: auto;
}
.wsp {
  background: #22303f;
  display: flex;
  flex-direction: column;
}
.wsp-grow {
  flex: 1;
}
.wsp-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 10px 4px;
  color: #a9bacb;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.wsp-head button {
  font: inherit;
  font-size: 14px;
  min-width: 28px;
  min-height: 28px;
  border: 0;
  background: none;
  color: #8fc1f5;
  cursor: pointer;
}
.wsp-body {
  padding: 4px 8px 10px;
  font-size: 12.5px;
  color: #d7e1eb;
}

.ws-mtabs {
  display: none;
}

.mode-label {
  position: absolute;
  top: 8px;
  left: 10px;
  z-index: 2;
  margin: 0;
  font-size: 12px;
  color: #cfe0f1;
  background: rgba(20, 29, 39, 0.75);
  border-radius: 4px;
  padding: 3px 9px;
  pointer-events: none;
  max-width: 70%;
}

.ws-cmd {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #141d27;
  border-top: 1px solid #0d141c;
  padding: 5px 12px;
  flex: 0 0 auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  color: #cfe0f1;
  min-height: 32px;
}
.ws-cmd-err {
  color: #f3a09a;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ws-cmd-actions {
  margin-left: auto;
  display: flex;
  gap: 6px;
}
.ws-cmd-actions button {
  font: inherit;
  font-size: 12px;
  padding: 3px 12px;
  min-height: 26px;
  border: 1px solid #3a5470;
  border-radius: 4px;
  background: #22303f;
  color: #d7e1eb;
  cursor: pointer;
}
.ws-cmd-actions #bw-cmd-apply {
  background: #0b5cad;
  border-color: #0b5cad;
  color: #fff;
}
.ws-status {
  display: flex;
  gap: 16px;
  align-items: center;
  background: #0b5cad;
  color: #dbeafc;
  font-size: 11.5px;
  padding: 4px 12px;
  flex: 0 0 auto;
}
.ws-status .ws-status-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 14px;
}
.ws-status a,
.ws-status button {
  color: #fff;
}
.ws-status button {
  border: 0;
  padding: 0;
  background: none;
  font: inherit;
  text-decoration: underline;
  cursor: pointer;
}

/* context properties (side stack on desktop; bottom sheet on mobile) */
#bw-context label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin: 5px 0;
}
#bw-context input[type='text'] {
  width: 86px;
  font: inherit;
  font-size: 12.5px;
  padding: 4px 6px;
  min-height: 28px;
  border: 1px solid #3a5470;
  border-radius: 3px;
  background: #1a2634;
  color: #e8f0f8;
}
#bw-context .ctx-t {
  font-weight: 700;
  margin: 2px 0;
}
#bw-context .ctx-sub {
  color: #a9bacb;
  font-size: 11.5px;
  margin: 0 0 6px;
}
#bw-context .ctx-actions {
  display: flex;
  gap: 6px;
  margin-top: 8px;
}
#bw-context .ctx-actions button {
  font: inherit;
  font-size: 12px;
  padding: 5px 12px;
  min-height: 30px;
  border: 1px solid #3a5470;
  border-radius: 4px;
  background: #22303f;
  color: #d7e1eb;
  cursor: pointer;
}
#bw-context .ctx-stat {
  color: #a9bacb;
  font-size: 12px;
  margin: 4px 0;
}
#bw-context .ctx-check {
  display: flex;
  align-items: center;
  gap: 7px;
  margin: 5px 0;
}
#bw-context input.field-err {
  border-color: #e74c3c;
}
#bw-context .err-msg,
.sk-bottom .err-msg {
  display: block;
  color: #f3a09a;
  font-size: 11px;
  margin: 2px 0 0;
}

@media (max-width: 760px) {
  .cadstudio-app {
    height: 100vh;
    height: 100dvh;
  }
  /* The panel stack collapses on phones into bottom sheets reached
     through the tab bar (Parameters / History) or by selecting a
     feature (Properties). position:fixed cannot escape a display:none
     ancestor, so hide the individual panels, not the aside. */
  .ws-side {
    display: contents;
  }
  .ws-side .wsp {
    display: none;
  }
  #bw-context-wrap:not([hidden]),
  .ws-side.m-open-params .wsp-params,
  .ws-side.m-open-history .wsp-history {
    display: block;
    position: fixed;
    left: 0;
    right: 0;
    bottom: var(--bw-sheet-bottom, 0px);
    z-index: 30;
    background: #22303f;
    color: #d7e1eb;
    border-top: 1px solid #3a5470;
    border-radius: 10px 10px 0 0;
    max-height: 45%;
    overflow-y: auto;
    padding: 4px 10px 10px;
    box-shadow: 0 -6px 24px rgba(0, 0, 0, 0.45);
  }
  /* an open tab sheet yields to the properties sheet */
  .ws-side.m-open-params #bw-context-wrap:not([hidden]) ~ .wsp-params,
  .ws-side.m-open-history #bw-context-wrap:not([hidden]) ~ .wsp-history {
    display: none;
  }
  /* the legacy 60vh stage height (old page layout, later media block)
     would overflow the app column and paint the canvas over the tab bar */
  .cadstudio-app #bw-studio {
    height: auto;
    min-height: 0;
  }
  .ws-mtabs {
    display: flex;
    gap: 1px;
    background: #141d27;
  }
  .ws-mtabs button {
    flex: 1;
    font: inherit;
    font-size: 13px;
    min-height: 44px;
    border: 0;
    background: #22303f;
    color: #d7e1eb;
    cursor: pointer;
  }
  .ws-mtabs button[aria-pressed='true'] {
    background: #315a86;
    color: #fff;
  }
  .wsr-btn {
    min-width: 48px;
    min-height: 44px;
  }
}

#bw-v1-notice {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 6;
  max-width: 80%;
  background: #fff8e6;
  border: 1px solid #e0c46b;
  color: #5d4a12;
  font-size: 13px;
  padding: 8px 12px;
  border-radius: 6px;
}
#bw-v1-notice button {
  font: inherit;
  font-size: 12px;
  margin-left: 8px;
  padding: 2px 10px;
  border: 1px solid #c9ad55;
  border-radius: 4px;
  background: #fff;
  cursor: pointer;
}

#bw-studio-msg {
  position: absolute;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
  z-index: 3;
  background: #1a3550;
  color: #fff;
  font-size: 13px;
  padding: 7px 14px;
  border-radius: 5px;
  max-width: 80%;
  pointer-events: none;
}

.ws-agent-narration {
  position: absolute;
  left: 50%;
  bottom: 84px;
  z-index: 6;
  width: min(760px, calc(100% - 160px));
  transform: translateX(-50%);
  pointer-events: none;
  text-align: center;
}
.ws-agent-narration > span {
  display: inline-block;
  padding: 8px 14px 9px;
  border: 1px solid rgba(187, 213, 238, .25);
  border-radius: 4px;
  background: rgba(5, 11, 17, .9);
  box-shadow: 0 8px 24px rgba(0, 0, 0, .34);
  color: #f4f8fb;
  font: 600 14px/1.35 Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: .005em;
  text-wrap: balance;
  -webkit-font-smoothing: antialiased;
  backdrop-filter: blur(8px);
}
.ws-agent-narration[data-avoid-dialog='true'] {
  left: 38%;
  width: min(560px, calc(100% - 96px));
}
.ws-agent-narration[data-kind='warning'] > span,
.ws-agent-narration[data-kind='attention'] > span {
  border-color: rgba(242, 185, 77, .55);
  color: #fff0c9;
}
.cadstudio-app .is-agent-revealed {
  outline: 1px solid rgba(92, 169, 246, .72);
  outline-offset: -1px;
}
@media (max-width: 760px) {
  .ws-agent-narration {
    bottom: 96px;
    width: calc(100% - 24px);
  }
  .ws-agent-narration > span {
    padding: 7px 11px;
    font-size: 12px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .ws-agent-narration {
    transition: none;
  }
}

/* Project transitions stay inside the CAD shell. Recoverable template changes
   use a quiet instrument-style toast; only unfinished edits and destructive
   Clear actions interrupt with a decision panel. */
.ws-decision {
  width: min(470px, calc(100vw - 32px));
  max-width: none;
  margin: auto;
  padding: 0;
  border: 0;
  background: transparent;
  color: #dce6ef;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
.ws-decision::backdrop {
  background: rgba(4, 9, 14, .72);
  backdrop-filter: blur(2px);
}
.ws-decision-card {
  overflow: hidden;
  border: 1px solid #45617d;
  border-top: 3px solid #4d9ae8;
  border-radius: 4px;
  background: #172532;
  box-shadow: 0 24px 72px rgba(0, 0, 0, .62);
}
.ws-decision-card header {
  padding: 18px 20px 13px;
  border-bottom: 1px solid #2e4559;
  background: #121e29;
}
.ws-decision-card header span {
  color: #79afe1;
  font: 700 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .13em;
  text-transform: uppercase;
}
.ws-decision-card h2 {
  margin: 6px 0 0;
  color: #f2f7fb;
  font-size: 18px;
  letter-spacing: -.015em;
}
.ws-decision-card > p {
  margin: 0;
  padding: 17px 20px;
  color: #a9bac9;
  font-size: 12px;
  line-height: 1.55;
}
.ws-decision-card footer {
  display: flex;
  justify-content: flex-end;
  gap: 7px;
  padding: 12px 14px;
  border-top: 1px solid #2e4559;
  background: #111c26;
}
.ws-decision-card button {
  min-height: 38px;
  padding: 0 13px;
  border: 1px solid #3d5871;
  border-radius: 3px;
  background: #203142;
  color: #d8e3ec;
  font: inherit;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
}
.ws-decision-card button:hover { border-color: #6487a8; background: #283d50; }
.ws-decision-card button:focus-visible { outline: 2px solid #82bfff; outline-offset: 2px; }
.ws-decision-card .ws-primary { border-color: #4d9ae8; background: #1768b1; color: #fff; }
.ws-decision-card .ws-primary:hover { background: #2179c6; }
.ws-decision-discard { color: #efc4bc !important; }
.ws-decision-danger .ws-decision-card { border-top-color: #d6745f; }
.ws-decision-danger .ws-decision-card header span { color: #e7a191; }
.ws-decision-card .ws-danger { border-color: #b85d4b; background: #8d3f32; color: #fff; }
.ws-decision-card .ws-danger:hover { background: #a84d3d; }

.ws-transition-toast {
  position: absolute;
  right: 18px;
  bottom: 42px;
  z-index: 45;
  display: grid;
  grid-template-columns: 34px minmax(180px, 1fr) auto 28px;
  align-items: center;
  gap: 10px;
  width: min(440px, calc(100% - 36px));
  min-height: 58px;
  padding: 8px 8px 8px 10px;
  border: 1px solid #426786;
  border-left: 3px solid #4d9ae8;
  border-radius: 3px;
  background: rgba(18, 31, 43, .97);
  box-shadow: 0 14px 36px rgba(0, 0, 0, .48);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 160ms ease, transform 180ms ease;
}
.ws-transition-toast.is-visible { opacity: 1; transform: translateY(0); }
.ws-transition-toast[hidden] { display: none; }
.ws-transition-mark {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid #365b7c;
  background: #142b3f;
  color: #83c2fa;
}
.ws-transition-icon { width: 17px; height: 17px; }
#bw-transition-status { display: grid; gap: 3px; min-width: 0; }
#bw-transition-status strong { overflow: hidden; color: #edf5fb; font-size: 11.5px; text-overflow: ellipsis; white-space: nowrap; }
#bw-transition-status small { color: #8ea5b8; font-size: 9.5px; line-height: 1.3; }
.ws-transition-toast button {
  min-height: 34px;
  border: 0;
  border-radius: 2px;
  background: transparent;
  color: #9fd0ff;
  font: inherit;
  font-size: 10px;
  font-weight: 800;
  cursor: pointer;
}
.ws-transition-toast button:hover { background: #1d3a53; color: #d9ecff; }
.ws-transition-toast button:focus-visible { outline: 2px solid #82bfff; outline-offset: 1px; }
.ws-transition-action { padding: 0 11px; border: 1px solid #356b9e !important; }
.ws-transition-action[hidden] { display: none; }
.ws-transition-close { width: 28px; padding: 0; color: #7890a4 !important; font-size: 17px !important; }

@media (max-width: 600px) {
  .ws-decision-card footer { display: grid; grid-template-columns: 1fr; }
  .ws-decision-card button { min-height: 44px; }
  .ws-decision-card .ws-primary { grid-row: 1; }
  .ws-transition-toast {
    right: 10px;
    bottom: 58px;
    grid-template-columns: 32px minmax(0, 1fr) auto;
    width: calc(100% - 20px);
  }
  .ws-transition-close { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .ws-transition-toast { transition: none; }
}

/* First run is guidance inside the tool, over the actual modeling surface. */
.ws-welcome {
  position: absolute;
  inset: 0;
  z-index: 8;
  display: grid;
  place-items: center;
  padding: 28px;
  background: rgba(13, 21, 30, 0.44);
}
.ws-welcome[hidden] {
  display: none;
}
.ws-welcome-card {
  width: min(760px, 100%);
  max-height: calc(100% - 32px);
  overflow-y: auto;
  border: 1px solid #45617d;
  border-top: 3px solid #4d9ae8;
  border-radius: 4px;
  background: rgba(24, 36, 49, 0.97);
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.45);
  padding: 26px 28px 22px;
}
.ws-welcome-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}
.ws-welcome-count {
  flex: 0 0 auto;
  margin-top: 2px;
  padding: 6px 8px;
  border: 1px solid #3c5a75;
  background: #1b2b3b;
  color: #9fc8ef;
  font: 700 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.ws-welcome-kicker {
  margin: 0 0 8px;
  color: #8fc1f5;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.ws-welcome h1 {
  margin: 0;
  padding: 0;
  border: 0;
  color: #f5f8fb;
  font-family: inherit;
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1.1;
  letter-spacing: -0.025em;
}
.ws-welcome-lede {
  max-width: 610px;
  margin: 9px 0 18px;
  color: #b9c7d4;
  font-size: 13px;
  line-height: 1.5;
}
.ws-welcome-status {
  color: #9db6cd;
  font-size: 13px;
  margin: 14px 0 0;
}
.ws-welcome-popular {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 7px;
  margin: 0 0 16px;
}
.ws-welcome-popular button {
  display: grid;
  grid-template-rows: 72px auto auto;
  gap: 4px;
  min-width: 0;
  padding: 8px;
  border: 1px solid #354e67;
  border-radius: 2px;
  background: #1a2a39;
  color: #dce6ef;
  text-align: left;
  cursor: pointer;
}
.ws-welcome-popular button:hover,
.ws-welcome-popular button:focus-visible {
  border-color: #75afe5;
  background: #20364a;
}
.ws-welcome-popular b { font-size: 11px; }
.ws-welcome-popular small { overflow: hidden; color: #8298ad; font-size: 9px; text-overflow: ellipsis; white-space: nowrap; }
.ws-template-mini {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid #283e52;
  background-color: #13202c;
  background-image: linear-gradient(#1d3041 1px, transparent 1px), linear-gradient(90deg, #1d3041 1px, transparent 1px);
  background-size: 10px 10px;
}
.ws-template-mini::before,
.ws-template-mini::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  box-sizing: border-box;
  transform: translate(-50%, -50%);
}
.ws-template-mini::before { width: 64px; height: 38px; border: 2px solid #78a8d3; background: rgba(67, 126, 180, .16); transform: translate(-50%, -45%) skewY(-10deg); }
.ws-template-mini[data-shape="plate"]::after { width: 14px; height: 9px; border: 2px solid #8fc1ef; border-radius: 50%; }
.ws-template-mini[data-shape="tray"]::before { border-width: 7px 5px; }
.ws-template-mini[data-shape="mount"]::after { width: 48px; height: 25px; background: radial-gradient(circle at 3px 3px, #8fc1ef 0 2px, transparent 2.5px) 0 0 / 42px 19px; }
.ws-template-mini[data-shape="knob"]::before { width: 42px; height: 42px; border-radius: 50%; transform: translate(-50%, -50%); }
.ws-template-mini[data-shape="knob"]::after { width: 19px; height: 19px; border: 2px solid #8fc1ef; border-radius: 50%; }
.ws-welcome-steps {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  counter-reset: start-steps;
}
.ws-welcome-steps li {
  position: relative;
  display: grid;
  grid-template-columns: 132px 1fr;
  gap: 12px;
  padding: 10px 0 10px 36px;
  border-top: 1px solid #2c4054;
  counter-increment: start-steps;
}
.ws-welcome-steps li:last-child {
  border-bottom: 1px solid #2c4054;
}
.ws-welcome-steps li::before {
  content: counter(start-steps, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 11px;
  color: #6f8eac;
  font: 700 10px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
}
.ws-welcome-steps b {
  color: #e8eef5;
  font-size: 12px;
}
.ws-welcome-steps span {
  color: #8ea1b4;
  font-size: 11px;
}
.ws-welcome-actions {
  display: grid;
  grid-template-columns: 1.35fr 1fr 1fr;
  gap: 6px;
}
.ws-welcome-actions button,
.ws-help-link {
  min-height: 44px;
  border: 1px solid #3c5874;
  border-radius: 3px;
  background: #223345;
  color: #dce6ef;
  font: inherit;
  font-size: 11px;
  cursor: pointer;
}

/* Template library: a parts cabinet, with the selected part's construction
   recipe visible before it replaces the current document. */
.ws-templates {
  width: min(1180px, calc(100vw - 32px));
  height: min(820px, calc(100dvh - 32px));
  max-width: none;
  max-height: none;
  margin: auto;
  padding: 0;
  border: 1px solid #45617d;
  border-radius: 3px;
  background: #14212d;
  color: #dce6ef;
  box-shadow: 0 26px 80px rgba(0, 0, 0, .58);
}
.ws-templates::backdrop { background: rgba(5, 10, 16, .76); }
.ws-template-shell { display: flex; flex-direction: column; height: 100%; }
.ws-template-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex: 0 0 auto;
  min-height: 62px;
  padding: 10px 14px 10px 18px;
  border-bottom: 1px solid #30485f;
  background: #111b25;
}
.ws-template-head span,
.ws-template-filter > p,
.ws-template-eyebrow {
  color: #7691aa;
  font: 700 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .13em;
  text-transform: uppercase;
}
.ws-template-head h2 { margin: 4px 0 0; color: #f1f6fa; font-size: 18px; letter-spacing: -.01em; }
.ws-template-head button {
  width: 44px;
  height: 44px;
  border: 1px solid #3b5670;
  border-radius: 2px;
  background: #1b2b3b;
  color: #eef5fa;
  font: 24px/1 system-ui, sans-serif;
  cursor: pointer;
}
.ws-template-workbench { display: grid; grid-template-columns: 176px minmax(360px, 1fr) 318px; min-height: 0; flex: 1; }
.ws-template-filter { display: flex; flex-direction: column; padding: 18px 12px; border-right: 1px solid #2d4357; background: #111c27; }
.ws-template-filter > p { margin: 0 8px 12px; }
.ws-template-filter nav { display: grid; gap: 3px; }
.ws-template-filter nav button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 40px;
  padding: 0 9px;
  border: 1px solid transparent;
  border-radius: 2px;
  background: transparent;
  color: #aebdcb;
  font: inherit;
  font-size: 11px;
  text-align: left;
  cursor: pointer;
}
.ws-template-filter nav button span { color: #657e94; font: 700 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
.ws-template-filter nav button:hover { background: #1a2a39; color: #eef5fa; }
.ws-template-filter nav button[aria-pressed="true"] { border-color: #356b9e; background: #173653; color: #9fd0ff; }
.ws-template-note { display: grid; gap: 6px; margin-top: auto; padding: 12px 9px; border-top: 1px solid #2d4357; }
.ws-template-note b { color: #b9d9f5; font-size: 10px; }
.ws-template-note span { color: #71869a; font-size: 9.5px; line-height: 1.45; }
.ws-template-browser { min-width: 0; min-height: 0; padding: 16px; overflow: hidden; }
.ws-template-search { display: grid; gap: 5px; }
.ws-template-search span { color: #91a5b9; font-size: 10px; font-weight: 700; }
.ws-template-search input {
  width: 100%;
  height: 44px;
  padding: 0 12px;
  border: 1px solid #3c5872;
  border-radius: 2px;
  background: #0f1923;
  color: #eef5fa;
  font: inherit;
  font-size: 12px;
}
.ws-template-results { display: flex; justify-content: space-between; gap: 10px; padding: 10px 1px; color: #71879b; font-size: 9px; }
.ws-template-results span:first-child { color: #abc0d3; font-weight: 700; }
.ws-template-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-content: start;
  gap: 7px;
  height: calc(100% - 83px);
  overflow-y: auto;
  padding: 0 3px 14px 0;
}
.ws-template-list,
.ws-template-detail,
.ws-template-workbench {
  scrollbar-width: thin;
  scrollbar-color: #526d84 #101a24;
}
.ws-template-list::-webkit-scrollbar,
.ws-template-detail::-webkit-scrollbar,
.ws-template-workbench::-webkit-scrollbar { width: 8px; height: 8px; }
.ws-template-list::-webkit-scrollbar-track,
.ws-template-detail::-webkit-scrollbar-track,
.ws-template-workbench::-webkit-scrollbar-track { background: #101a24; }
.ws-template-list::-webkit-scrollbar-thumb,
.ws-template-detail::-webkit-scrollbar-thumb,
.ws-template-workbench::-webkit-scrollbar-thumb { border: 2px solid #101a24; border-radius: 8px; background: #526d84; }
.ws-template-card {
  display: grid;
  grid-template-rows: 84px auto auto;
  gap: 5px;
  min-height: 138px;
  padding: 8px;
  border: 1px solid #2e465c;
  border-radius: 2px;
  background: #172634;
  color: #dce6ef;
  text-align: left;
  cursor: pointer;
}
.ws-template-card:hover { border-color: #507a9f; background: #1a2d3e; }
.ws-template-card[aria-selected="true"] { border-color: #58a2e7; box-shadow: inset 0 0 0 1px #2f76b8; background: #19334b; }
.ws-template-card .ws-template-mini { height: 84px; }
.ws-template-card b { overflow: hidden; font-size: 10.5px; text-overflow: ellipsis; white-space: nowrap; }
.ws-template-card small { color: #7c91a5; font-size: 8.5px; }
.ws-template-detail { min-width: 0; overflow-y: auto; padding: 16px 18px 18px; border-left: 1px solid #2d4357; background: #152432; }
.ws-template-preview {
  height: 180px;
  margin: 0 0 15px;
  border: 1px solid #314b63;
  background-color: #101a24;
  background-image: linear-gradient(#1e3040 1px, transparent 1px), linear-gradient(90deg, #1e3040 1px, transparent 1px);
  background-size: 14px 14px;
}
.ws-template-preview svg { width: 100%; height: 100%; color: #86b5df; }
.ws-template-preview .solid { fill: rgba(58, 119, 171, .22); stroke: currentColor; stroke-width: 2; }
.ws-template-preview .edge { fill: none; stroke: #b6d5f2; stroke-width: 1.5; }
.ws-template-preview .hidden-edge { fill: none; stroke: #557b9f; stroke-width: 1; stroke-dasharray: 4 4; }
.ws-template-eyebrow { margin: 0 0 7px; color: #79afe1; }
.ws-template-detail h3 { margin: 0; color: #f2f6fa; font-size: 20px; letter-spacing: -.02em; }
.ws-template-detail > p:not(.ws-template-eyebrow) { min-height: 45px; margin: 8px 0 14px; color: #9dafc0; font-size: 11px; line-height: 1.45; }
.ws-template-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin: 0 0 15px; }
.ws-template-facts div { padding: 8px; border: 1px solid #2d465d; background: #111d28; }
.ws-template-facts dt { color: #6f879c; font-size: 8px; text-transform: uppercase; }
.ws-template-facts dd { margin: 4px 0 0; color: #cdd9e4; font: 700 9px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; }
.ws-template-recipe { margin: 0 0 16px; }
.ws-template-recipe > b { color: #718aa0; font: 700 8px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .12em; }
.ws-template-recipe ol { margin: 8px 0 0; padding: 0; list-style: none; counter-reset: recipe; }
.ws-template-recipe li { position: relative; min-height: 31px; padding: 0 0 9px 32px; color: #c4d1dd; font-size: 10px; counter-increment: recipe; }
.ws-template-recipe li::before { content: counter(recipe, decimal-leading-zero); position: absolute; left: 0; top: -2px; display: grid; width: 22px; height: 22px; place-items: center; border: 1px solid #3b6387; border-radius: 50%; background: #142a3d; color: #8fc4f3; font: 700 8px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
.ws-template-recipe li:not(:last-child)::after { content: ''; position: absolute; left: 11px; top: 21px; width: 1px; height: 12px; background: #3b6387; }
.ws-template-detail > .ws-primary,
.cs-help-actions button,
.ws-tour .ws-primary {
  min-height: 42px;
  border: 1px solid #1976d2;
  border-radius: 2px;
  background: #0b5cad;
  color: #fff;
  font: inherit;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
}
.ws-template-detail > .ws-primary { display: flex; align-items: center; justify-content: space-between; width: 100%; padding: 0 12px; }
.ws-template-detail > .ws-primary:disabled { border-color: #3b4d5d; background: #263542; color: #738493; cursor: default; }
.cs-help-actions { display: flex; flex-wrap: wrap; gap: 7px; margin: 0 0 14px; }
.cs-help-actions button { padding: 0 12px; }
.cs-help-actions button + button { border-color: #45617d; background: #203447; }
.cs-agent-note { margin: -3px 0 14px; color: #91a8bc; font-size: 11px; line-height: 1.5; }

/* The tour points at live controls; the soft outline travels through the app
   while the concise card stays out of the user's working area. */
.ws-tour { position: fixed; inset: 0; z-index: 1001; pointer-events: none; }
.ws-tour[hidden] { display: none; }
.ws-tour-target { position: relative; z-index: 1002 !important; outline: 3px solid #73b9f7 !important; outline-offset: 4px; box-shadow: 0 0 0 9999px rgba(4, 9, 14, .55), 0 0 26px rgba(69, 157, 236, .7) !important; }
.ws-tour-card { position: fixed; left: 50%; bottom: 40px; width: min(390px, calc(100vw - 24px)); padding: 16px 17px; border: 1px solid #5a84aa; border-top: 3px solid #58aaf2; border-radius: 3px; background: #172737; color: #dce6ef; box-shadow: 0 16px 50px rgba(0, 0, 0, .55); transform: translateX(-50%); pointer-events: auto; }
.ws-tour-progress { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.ws-tour-progress span { color: #7fb4e3; font: 700 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .08em; text-transform: uppercase; }
.ws-tour-progress button { padding: 0; border: 0; background: transparent; color: #8fa4b7; font: inherit; font-size: 10px; text-decoration: underline; cursor: pointer; }
.ws-tour h2 { margin: 11px 0 5px; color: #f3f7fa; font-size: 17px; }
.ws-tour p { margin: 0 0 14px; color: #aebdcc; font-size: 11.5px; line-height: 1.5; }
.ws-tour-actions { display: flex; justify-content: flex-end; gap: 7px; }
.ws-tour-actions button { min-width: 76px; min-height: 38px; padding: 0 12px; border: 1px solid #405b74; border-radius: 2px; background: #203244; color: #dce6ef; font: inherit; font-size: 10px; cursor: pointer; }
.ws-welcome-actions button:hover,
.ws-help-link:hover {
  border-color: #71a6da;
  background: #2a4055;
}
.ws-welcome-actions .ws-primary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 13px;
  border-color: #1976d2;
  background: #0b5cad;
  color: #fff;
  font-weight: 700;
}
.ws-help-link {
  min-height: 34px;
  margin-top: 8px;
  padding: 0;
  border: 0;
  background: transparent;
  color: #8fc1f5;
  text-decoration: underline;
}

/* Help is a deliberate in-app drawer: reference stays one click away and
   never extends the modeling page. */
.ws-help {
  width: min(760px, calc(100vw - 32px));
  height: min(850px, calc(100dvh - 32px));
  max-width: none;
  max-height: none;
  margin: auto 16px auto auto;
  padding: 0;
  border: 1px solid #45617d;
  border-radius: 4px;
  background: #172432;
  color: #d7e1eb;
  box-shadow: -16px 0 60px rgba(0, 0, 0, 0.45);
}
.ws-help::backdrop {
  background: rgba(5, 10, 16, 0.66);
}
.ws-help-shell {
  display: flex;
  flex-direction: column;
  height: 100%;
}
.ws-help-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 18px;
  border-bottom: 1px solid #2d4358;
  background: #111b26;
}
.ws-help-head span {
  color: #7f98b1;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.ws-help-head h2 {
  margin: 2px 0 0;
  padding: 0;
  border: 0;
  color: #f2f6fa;
  font-family: inherit;
  font-size: 18px;
}
.ws-help-head button {
  width: 40px;
  height: 40px;
  border: 1px solid #38516a;
  border-radius: 3px;
  background: #1d2d3d;
  color: #eef4fa;
  font: 22px/1 system-ui, sans-serif;
  cursor: pointer;
}
.ws-help-body {
  flex: 1;
  overflow-y: auto;
  padding: 18px 22px 30px;
}
.ws-help-body section {
  margin: 0;
  padding: 18px 0 22px;
  border-bottom: 1px solid #2d4358;
}
.ws-help-body section:first-child {
  padding-top: 0;
}
.ws-help-body h3 {
  margin: 0 0 12px;
  color: #f0f5fa;
  font-size: 14px;
}
.cs-steps {
  padding-left: 20px;
  font-size: 13px;
  line-height: 1.55;
}
.cs-steps li {
  margin: 8px 0;
}
.cs-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  font-size: 12.5px;
  line-height: 1.5;
}
.cs-cols p {
  margin: 4px 0 0;
  color: #aebdcb;
}
.cs-faq p {
  color: #aebdcb;
  font-size: 12.5px;
  line-height: 1.55;
  margin: 10px 0;
}
.ws-help a {
  color: #8fc1f5;
}
.ws-help code,
.cs-shortcuts dt {
  color: #d9e8f7;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.ws-recover {
  width: min(520px, calc(100vw - 32px));
  height: min(520px, calc(100dvh - 32px));
}
.ws-recover-body {
  flex: 1;
  overflow-y: auto;
  padding: 18px;
}
.ws-recover-body > p:first-child {
  margin: 0 0 16px;
  color: #9fb0c0;
  font-size: 12px;
  line-height: 1.5;
}
.ws-recovery-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.ws-recovery-project > h3 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 5px 0 7px;
  color: #dce7f1;
  font-size: 12px;
}
.ws-recovery-project > h3 span {
  padding: 3px 5px;
  border: 1px solid #396b98;
  border-radius: 2px;
  color: #8fc5fa;
  font: 700 8px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .08em;
}
.ws-recovery-project > ol {
  display: grid;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.ws-recovery-list button {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 12px;
  width: 100%;
  min-height: 54px;
  padding: 9px 11px;
  border: 1px solid #34506a;
  border-radius: 3px;
  background: #1b2d3d;
  color: #d8e4ef;
  text-align: left;
  cursor: pointer;
}
.ws-recovery-list button:hover,
.ws-recovery-list button:focus-visible {
  border-color: #5c91c4;
  background: #20384d;
  outline: none;
}
.ws-recovery-list b {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 12px;
}
.ws-recovery-list time,
.ws-recovery-list small {
  color: #8fa5b9;
  font: 10px/1.35 ui-monospace, SFMono-Regular, Menlo, monospace;
}
.ws-recovery-list small {
  grid-column: 1 / -1;
}
.cs-shortcuts dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px 16px;
  margin: 0;
}
.cs-shortcuts dl div {
  display: grid;
  grid-template-columns: 112px 1fr;
  gap: 8px;
  padding: 7px 0;
  border-bottom: 1px solid #26394b;
}
.cs-shortcuts dt,
.cs-shortcuts dd {
  margin: 0;
  font-size: 11.5px;
}
.cs-shortcuts dd {
  color: #9caec0;
}

/* parameters panel */
#bw-params {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.param-row {
  display: flex;
  gap: 4px;
  align-items: center;
}
.param-row input {
  font: inherit;
  font-size: 12.5px;
  padding: 4px 6px;
  min-height: 28px;
  border: 1px solid #3a5470;
  border-radius: 4px;
  background: #1a2634;
  color: #e8f0f8;
  min-width: 0;
}
.param-row input[data-pname] {
  flex: 1.2;
}
.param-row input[data-pval] {
  flex: 1;
}
.param-row button {
  font: inherit;
  font-size: 12px;
  padding: 2px 7px;
  min-width: 28px;
  min-height: 28px;
  border: 1px solid #3a5470;
  border-radius: 4px;
  background: #22303f;
  color: #d7e1eb;
  cursor: pointer;
}
.pick-bar input[type='text'] {
  width: 70px;
  font: inherit;
  font-size: 12.5px;
  padding: 2px 5px;
  border: 1px solid #3a5470;
  border-radius: 3px;
  background: #1a2634;
  color: #e8f0f8;
}
.sk-top input[type='text'] {
  width: 70px;
  font: inherit;
  font-size: 12.5px;
  padding: 2px 5px;
  border: 1px solid #3a5470;
  border-radius: 3px;
  background: #1a2634;
  color: #e8f0f8;
}

/* feature history */
.hist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.hist-item {
  border: 1px solid #3a5470;
  border-radius: 5px;
  padding: 6px 8px;
  font-size: 12.5px;
  background: #1a2634;
  cursor: pointer;
}
.hist-item.err {
  border-color: #e74c3c;
  background: #35222a;
}
.hist-item.sel {
  border-color: #4c9aff;
  box-shadow: 0 0 0 1px #4c9aff inset;
}
.hist-item.rollback { border-style: double; border-width: 3px; }
.hist-item.rollback .hi-n::after { content: '  · rollback'; color: #8fc1f5; font-weight: 500; }
.hist-item.rolled-back { opacity: .52; border-style: dashed; }
.hist-item.dragging { opacity: .35; }
/* selection is marked by shape as well as colour */
.hist-item.sel .hi-n::before {
  content: '\25B8 ';
}
.hist-item .hi-sel {
  display: block;
  width: 100%;
  font: inherit;
  text-align: left;
  padding: 0;
  margin: 0 0 2px;
  border: 0;
  background: none;
  color: inherit;
  cursor: pointer;
}
.hist-item .hi-sel:focus-visible {
  outline: 2px solid #8fc1f5;
  outline-offset: 1px;
}
.hist-item .hi-n {
  font-weight: 700;
  display: block;
}
.hist-item .hi-d {
  color: #a9bacb;
  display: block;
  margin: 1px 0 4px;
}
.hist-item .hi-a button {
  font: inherit;
  font-size: 11.5px;
  padding: 2px 8px;
  min-height: 26px;
  margin-right: 4px;
  border: 1px solid #3a5470;
  border-radius: 4px;
  background: #22303f;
  color: #d7e1eb;
  cursor: pointer;
}
.hist-item .hi-a button[aria-pressed='true'] { border-color: #8fc1f5; color: #fff; }
.hist-item .hi-a button:disabled { opacity: .35; cursor: default; }

/* Schema-5 body rows reuse the existing model-tree density and palette. */
.ws-bodies-panel { flex: 0 1 auto; max-height: 42%; overflow-y: auto; border-bottom: 1px solid var(--v3-line-soft); }
.body-tree {
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.body-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px;
  padding: 5px;
  border: 1px solid #334d65;
  border-radius: 4px;
  background: #182633;
}
.body-row.is-selected { border-color: #4c9aff; box-shadow: inset 0 0 0 1px #4c9aff; }
.body-row.is-active .body-select::before { content: '\25B8'; margin-right: 4px; color: #7fc0fa; }
.body-row.is-suppressed { border-style: dashed; opacity: .68; }
.body-row.is-failed { border-color: #e16a5b; background: #35252a; }
.body-select {
  min-width: 0;
  padding: 2px 3px;
  border: 0;
  background: transparent;
  color: #e5edf4;
  font: inherit;
  font-size: 11.5px;
  font-weight: 700;
  overflow: hidden;
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
}
.body-select small { display: block; margin-top: 2px; color: #8298aa; font-size: 8.5px; font-weight: 500; }
.body-actions { display: flex; grid-column: 1 / -1; justify-content: flex-end; align-items: start; gap: 2px; }
.body-actions button,
.body-actions label {
  display: grid;
  min-width: 25px;
  min-height: 25px;
  place-items: center;
  margin: 0;
  padding: 0 4px;
  border: 1px solid #3a5470;
  border-radius: 3px;
  background: #22303f;
  color: #d7e1eb;
  font: 700 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  cursor: pointer;
}
.body-actions input { width: 13px; height: 13px; margin: 0; accent-color: #4c9aff; }
#bw-sk-result-row { display: inline-flex; align-items: center; gap: 8px; }
#bw-sk-result-row[hidden] { display: none; }
#bw-sk-result-row input,
#bw-sk-result-row select { min-height: 28px; border: 1px solid #3a5470; border-radius: 3px; background: #1a2634; color: #e8f0f8; font: inherit; font-size: 11px; }
#bw-sk-body-name { width: 105px; padding: 0 6px; }
#bw-sk-target { max-width: 130px; }
.ctx-body-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 5px; margin-top: 8px; }
.ctx-body-actions button { min-height: 31px; border: 1px solid #3a5470; border-radius: 3px; background: #223447; color: #dce7f1; font: inherit; font-size: 10px; cursor: pointer; }
.ctx-body-actions button.is-danger { border-color: #7e4a48; color: #ffbbb4; }
.ctx-body-name { display: grid; gap: 4px; color: #8fa5b9; font-size: 9px; }
.ctx-body-name input { min-width: 0; min-height: 32px; padding: 0 7px; border: 1px solid #3a5470; border-radius: 3px; background: #172633; color: #eef5fa; font: inherit; }
@media (max-width: 760px) {
  .ws-bodies-panel { max-height: none; overflow: visible; }
  .body-actions { flex-wrap: wrap; }
  .body-actions button,
  .body-actions label { min-width: 44px; min-height: 44px; }
}
.sr-file {
  font-size: 13.5px;
  text-align: left;
  padding: 7px 10px;
  border: 1px solid #c8ced5;
  border-radius: 5px;
  background: #fff;
  color: #1a3550;
  cursor: pointer;
}
.sr-file:hover {
  background: #f0f5fa;
}

/* edge pick bar (fillet / chamfer) */
.pick-bar {
  position: absolute;
  top: 10px;
  left: 10px;
  right: 10px;
  z-index: 3;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  background: rgba(34, 48, 63, 0.95);
  color: #d7e1eb;
  border: 1px solid #3a5470;
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 13px;
}
.pick-bar b {
  color: #eef4fa;
}
.pick-bar button {
  font: inherit;
  font-size: 12.5px;
  padding: 4px 10px;
  min-height: 30px;
  border: 1px solid #3a5470;
  border-radius: 4px;
  background: #22303f;
  color: #d7e1eb;
  cursor: pointer;
}
.pick-bar button.sr-accent {
  background: #0b5cad;
  color: #fff;
  border-color: #0b5cad;
  font-weight: 600;
}
.pick-bar input[type='number'] {
  width: 60px;
  font: inherit;
  font-size: 12.5px;
  padding: 2px 5px;
  border: 1px solid #3a5470;
  border-radius: 3px;
  background: #1a2634;
  color: #e8f0f8;
}

/* sketch overlay — same dark CAD surface as the 3D workspace */
#bw-sketch {
  position: absolute;
  inset: 0;
  z-index: 4;
  background: #1a2531;
  color: #d7e1eb;
  display: flex;
  flex-direction: column;
}
.sk-top,
.sk-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  background: #22303f;
  border-bottom: 1px solid #141d27;
  font-size: 13px;
}
.sk-top b {
  color: #eef4fa;
}
.sk-bottom {
  border-bottom: 0;
  border-top: 1px solid #141d27;
  min-height: 34px;
}
.sk-top button,
.sk-bottom button {
  font: inherit;
  font-size: 12.5px;
  padding: 4px 10px;
  min-height: 30px;
  border: 1px solid #3a5470;
  border-radius: 4px;
  background: #22303f;
  color: #d7e1eb;
  cursor: pointer;
}
.sk-top button.on {
  background: #315a86;
  color: #fff;
  border-color: #4c9aff;
}
.sk-top button.sr-accent {
  background: #0b5cad;
  color: #fff;
  border-color: #0b5cad;
  font-weight: 600;
}
.sk-top input[type='number'],
.sk-bottom input[type='number'] {
  width: 64px;
  font: inherit;
  font-size: 12.5px;
  padding: 2px 5px;
  border: 1px solid #3a5470;
  border-radius: 3px;
  background: #1a2634;
  color: #e8f0f8;
}
.sk-top select {
  font: inherit;
  font-size: 12.5px;
  border: 1px solid #3a5470;
  border-radius: 3px;
  background: #1a2634;
  color: #e8f0f8;
  padding: 2px 4px;
}
#bw-sketch-canvas {
  flex: 1;
  display: block;
  cursor: crosshair;
  touch-action: none;
}
.sk-pull {
  border-color: #4388c7 !important;
  background: #153f65 !important;
  color: #f3f8fc !important;
  font-weight: 700 !important;
}

/* Direct-manipulation solid preview. The WebGL canvas stays the work surface;
   only the compact numeric palette and drag cue sit above it. */
.ws-presspull {
  position: absolute;
  inset: 0;
  z-index: 5;
  pointer-events: none;
  color: #e8eef4;
}
.ws-presspull::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 12, 18, .22), transparent 28%);
}
.pp-card {
  position: absolute;
  top: 16px;
  left: 16px;
  width: min(330px, calc(100% - 32px));
  padding: 14px 15px 13px;
  border: 1px solid #40576c;
  border-radius: 3px;
  background: rgba(23, 31, 40, .96);
  box-shadow: 0 14px 34px rgba(0, 0, 0, .38);
  pointer-events: auto;
}
.pp-kicker {
  display: block;
  margin-bottom: 4px;
  color: #69a9df;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .11em;
  text-transform: uppercase;
}
.pp-card > b { display: block; font-size: 17px; }
.pp-card > p { margin: 5px 0 11px; color: #aebdca; font-size: 12px; line-height: 1.45; }
.pp-card label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
}
.pp-card input {
  width: 90px;
  min-height: 34px;
  padding: 4px 8px;
  border: 1px solid #4c647a;
  border-radius: 2px;
  background: #0f1821;
  color: #f3f7fb;
  font: 700 13px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
}
.pp-actions { display: flex; gap: 7px; margin-top: 12px; }
.pp-actions button {
  min-height: 34px;
  padding: 5px 11px;
  border: 1px solid #455b6f;
  border-radius: 2px;
  background: #253442;
  color: #e5edf4;
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}
.pp-actions .sr-accent { border-color: #1672bd; background: #1268ad; color: #fff; }
.pp-drag-cue {
  position: absolute;
  left: 50%;
  top: 48%;
  display: grid;
  justify-items: center;
  transform: translate(-50%, -50%);
  filter: drop-shadow(0 2px 5px rgba(0, 0, 0, .65));
}
.pp-drag-cue i {
  display: block;
  width: 2px;
  height: 78px;
  background: #6fb6ec;
  box-shadow: 0 -1px 0 1px #6fb6ec;
}
.pp-drag-cue i::before,
.pp-drag-cue i::after {
  content: '';
  position: absolute;
  left: 50%;
  width: 10px;
  height: 10px;
  border-top: 2px solid #6fb6ec;
  border-left: 2px solid #6fb6ec;
}
.pp-drag-cue i::before { top: 1px; transform: translateX(-50%) rotate(45deg); }
.pp-drag-cue i::after { top: 67px; transform: translateX(-50%) rotate(225deg); }
.pp-drag-cue b {
  margin-top: 8px;
  padding: 4px 7px;
  border: 1px solid #69a9df;
  background: #101820;
  color: #eef7ff;
  font: 700 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}
.pp-drag-cue span { margin-top: 5px; color: #9ab2c6; font-size: 9px; font-weight: 800; letter-spacing: .13em; }
.cadstudio-app.is-presspull #bw-studio > canvas { cursor: ns-resize; }
.sk-note {
  color: #a9bacb;
  font-size: 12px;
}
.sk-dof {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font: 700 11px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .04em;
  white-space: nowrap;
}
.sk-dof.is-defined { background: rgba(101, 193, 140, 0.16); color: #65c18c; border: 1px solid rgba(101, 193, 140, 0.45); }
.sk-dof.is-open { background: rgba(230, 176, 34, 0.14); color: #e6b022; border: 1px solid rgba(230, 176, 34, 0.4); }
.sk-dof.is-conflict { background: rgba(224, 82, 82, 0.14); color: #e05252; border: 1px solid rgba(224, 82, 82, 0.45); }
#bw-sk-dims {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}
#bw-sk-dims label {
  font-size: 12.5px;
}

@media (max-width: 760px) {
  .pp-card { top: 10px; left: 10px; width: calc(100% - 20px); padding: 11px 12px; }
  .pp-card > p { display: none; }
  .pp-card label { margin-top: 8px; }
  .pp-actions button, .pp-card input { min-height: 44px; }
  .pp-drag-cue { top: 60%; }
  .ws-appbar {
    grid-template-columns: 1fr auto;
    min-height: 50px;
    gap: 6px;
    padding: 0 6px 0 9px;
  }
  .ws-brand small,
  .ws-project {
    display: none;
  }
  .ws-app-actions button {
    min-width: 44px;
    min-height: 44px;
    padding: 0 8px;
  }
  .ws-app-actions button span:last-child:not(:first-child) {
    display: none;
  }
  .ws-welcome {
    place-items: end stretch;
    padding: 10px;
  }
  .ws-welcome-card {
    width: 100%;
    max-height: calc(100dvh - 136px);
    overflow-y: auto;
    padding: 19px 18px 16px;
  }
  .ws-welcome-lede {
    margin-bottom: 14px;
  }
  .ws-welcome-steps {
    margin-bottom: 14px;
  }
  .ws-welcome-steps li {
    grid-template-columns: 1fr;
    gap: 2px;
    padding: 7px 0 7px 30px;
  }
  .ws-welcome-steps li::before {
    top: 9px;
  }
  .ws-welcome-actions {
    grid-template-columns: 1fr 1fr;
  }
  .ws-welcome-actions .ws-primary {
    grid-column: 1 / -1;
  }
  .ws-welcome-heading { gap: 8px; }
  .ws-welcome-count { display: none; }
  .ws-welcome-popular { grid-template-columns: 1fr 1fr; }
  .ws-welcome-popular button { grid-template-rows: 46px auto auto; }
  .ws-welcome-popular button:nth-child(n + 3) { display: none; }
  .ws-template-mini { min-height: 46px; }
  .ws-templates {
    width: 100vw;
    height: 100dvh;
    margin: 0;
    border: 0;
    border-radius: 0;
  }
  .ws-template-head { min-height: 58px; padding-left: 13px; }
  .ws-template-head h2 { font-size: 15px; }
  .ws-template-workbench { grid-template-columns: 1fr; grid-template-rows: auto auto auto; overflow-y: auto; }
  .ws-template-filter { padding: 8px 10px; overflow-x: auto; border: 0; border-bottom: 1px solid #2d4357; }
  .ws-template-filter { scrollbar-width: none; }
  .ws-template-filter::-webkit-scrollbar { display: none; }
  .ws-template-filter > p,
  .ws-template-note { display: none; }
  .ws-template-filter nav { display: flex; min-width: max-content; }
  .ws-template-filter nav button { min-height: 44px; gap: 7px; }
  .ws-template-browser { min-height: 430px; padding: 12px 10px 0; }
  .ws-template-list { grid-template-columns: 1fr 1fr; height: calc(100% - 110px); }
  .ws-template-card { grid-template-rows: 64px auto auto; min-height: 119px; }
  .ws-template-card .ws-template-mini { height: 64px; }
  .ws-template-detail { overflow: visible; padding: 12px; border: 0; border-top: 1px solid #2d4357; }
  .ws-template-preview { display: none; }
  .ws-template-detail > p:not(.ws-template-eyebrow) { min-height: 0; }
  .ws-template-recipe ol { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 4px; }
  .ws-template-recipe li { min-height: 26px; }
  .ws-template-recipe li::after { display: none; }
  .ws-template-detail > .ws-primary { position: sticky; bottom: 0; min-height: 48px; }
  .ws-tour-card { bottom: 12px; }
  .ws-tour-target { box-shadow: 0 0 0 9999px rgba(4, 9, 14, .42), 0 0 18px rgba(69, 157, 236, .65) !important; }
  .ws-help {
    width: 100vw;
    height: 100dvh;
    margin: 0;
    border: 0;
    border-radius: 0;
  }
  .ws-help-body {
    padding: 16px 17px 28px;
  }
  .cs-cols,
  .cs-shortcuts dl {
    grid-template-columns: 1fr;
  }
  .ws-status > span:nth-child(2),
  .ws-status-right a {
    display: none;
  }
}

.cadstudio-app button:focus-visible,
.cadstudio-app a:focus-visible,
.cadstudio-app input:focus-visible,
.cadstudio-app select:focus-visible {
  outline: 2px solid #79b8f5;
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .cadstudio-app *,
  .cadstudio-app *::before,
  .cadstudio-app *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}

/* -------------------------------------------------------------------------
   V3 precision workspace

   The application shell is organised like an engineering instrument:
   document controls, contextual workspaces, a model tree, the canvas, and a
   dedicated inspector. The canvas chrome is the visual signature; everything
   else stays quiet enough for geometry to remain the primary content.
   ---------------------------------------------------------------------- */
.cadstudio-app {
  --v3-ink: #0b121a;
  --v3-rail: #101923;
  --v3-panel: #172330;
  --v3-panel-2: #1c2a38;
  --v3-line: #2a3a4a;
  --v3-line-soft: #202e3c;
  --v3-text: #dce7f2;
  --v3-muted: #8295a9;
  --v3-blue: #2f8cff;
  --v3-blue-deep: #1265c4;
  --v3-amber: #f4a340;
  background: var(--v3-ink);
  color: var(--v3-text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
.cadstudio-app:fullscreen {
  background: var(--v3-ink);
}
.ws-visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* application and document bar */
.cadstudio-app .ws-appbar {
  min-height: 52px;
  grid-template-columns: auto minmax(180px, 1fr) auto;
  gap: 18px;
  padding: 0 10px 0 12px;
  background: var(--v3-ink);
  border-bottom-color: #05090e;
  box-shadow: 0 1px rgba(255, 255, 255, 0.025) inset;
}
.cadstudio-app .ws-brand-mark {
  border-color: #3c5a78;
  background: #101d2a;
  color: #85bcf4;
}
.cadstudio-app .ws-brand small {
  color: #667c91;
}
.ws-document {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  min-width: 250px;
  height: 36px;
  border: 1px solid var(--v3-line);
  border-bottom-color: var(--v3-blue);
  background: #121d28;
  box-shadow: 0 -2px 0 rgba(47, 140, 255, 0.12) inset;
}
.ws-document-kind {
  align-self: stretch;
  display: grid;
  place-items: center;
  padding: 0 9px;
  border-right: 1px solid var(--v3-line);
  color: #7790a8;
  font: 700 8px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.12em;
}
.ws-document .ws-project-name {
  padding: 0 10px;
  color: #edf4fa;
  font-size: 12px;
}
.ws-document .ws-local {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-left: auto;
  padding-right: 10px;
  color: #72869a;
  font-size: 9px;
  white-space: nowrap;
}
.ws-document .ws-local i,
.ws-kernel-state i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #47c98b;
  box-shadow: 0 0 0 2px rgba(71, 201, 139, 0.12);
}
.cadstudio-app .ws-app-actions,
.ws-edit-actions,
.ws-file-actions {
  display: flex;
  align-items: center;
  gap: 3px;
}
.ws-edit-actions {
  padding-right: 5px;
  border-right: 1px solid var(--v3-line);
}
.ws-file-actions {
  padding-right: 5px;
  border-right: 1px solid var(--v3-line);
}
.cadstudio-app .ws-app-actions .ws-quick-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-width: 34px;
  min-height: 34px;
  padding: 0 7px;
  border: 1px solid transparent;
  border-radius: 3px;
  background: transparent;
  color: #aebdcb;
  font: inherit;
  font-size: 10px;
  cursor: pointer;
}
.cadstudio-app .ws-app-actions .ws-quick-btn:hover,
.cadstudio-app .ws-app-actions .ws-quick-btn[aria-pressed='true'] {
  border-color: #3a526a;
  background: #172534;
  color: #f1f6fb;
}
.cadstudio-app .ws-app-actions .ws-quick-btn:disabled {
  opacity: 0.35;
  cursor: default;
}
.ws-quick-icon,
.ws-quick-icon .ws-icon {
  display: grid;
  place-items: center;
  width: 17px;
  height: 17px;
}
.ws-quick-labeled {
  min-width: 58px !important;
}
.ws-export-btn {
  flex-direction: row-reverse;
  color: #8fc5fa !important;
  font: 700 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace !important;
  letter-spacing: 0.04em;
}
.ws-action-divider {
  width: 1px;
  height: 22px;
  margin: 0 2px;
  background: var(--v3-line);
}
.ws-clear-label {
  display: none;
}

/* contextual workspaces and tool shelf */
.cadstudio-app .ws-ribbon {
  display: flex;
  flex-direction: column;
  overflow: visible;
  background: var(--v3-rail);
  border-bottom-color: #070c11;
}
.ws-workspace-bar {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  min-height: 36px;
  padding: 0 12px;
  border-bottom: 1px solid var(--v3-line-soft);
  background: #0e1721;
}
.ws-workspaces {
  display: flex;
  align-items: stretch;
  gap: 2px;
}
.ws-workspaces button {
  position: relative;
  min-width: 76px;
  padding: 0 13px;
  border: 0;
  background: transparent;
  color: #8194a8;
  font: 700 10px/1 inherit;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}
.ws-workspaces button::after {
  content: '';
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 0;
  height: 2px;
  background: transparent;
}
.ws-workspaces button:hover:not(:disabled) {
  color: #c9d7e4;
  background: rgba(255, 255, 255, 0.025);
}
.ws-workspaces button[aria-selected='true'] {
  color: #f3f7fb;
}
.ws-workspaces button[aria-selected='true']::after {
  background: var(--v3-blue);
  box-shadow: 0 -2px 10px rgba(47, 140, 255, 0.4);
}
.ws-workspaces button:disabled {
  color: #415262;
  cursor: not-allowed;
}
.ws-workspace-state {
  display: flex;
  align-items: center;
  gap: 7px;
  color: #8799ab;
}
.ws-workspace-state > span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--v3-blue);
  box-shadow: 0 0 10px rgba(47, 140, 255, 0.7);
}
.ws-workspace-state b {
  color: #aab9c8;
  font-size: 10px;
}
.ws-workspace-state small {
  padding-left: 7px;
  border-left: 1px solid var(--v3-line);
  color: #62778b;
  font-size: 9px;
}
.ws-ribbon-panel {
  display: flex;
  min-height: 74px;
  padding: 6px 10px 7px;
  background: linear-gradient(180deg, #172330 0%, #131f2a 100%);
  overflow-x: auto;
  scrollbar-width: thin;
}
.ws-ribbon-panel[hidden] {
  display: none;
}
.cadstudio-app .ws-group {
  position: relative;
  display: flex;
  flex-direction: row;
  align-items: stretch;
  gap: 8px;
  padding: 0 8px 0 76px;
  border-right-color: var(--v3-line);
}
.cadstudio-app .wsg-title {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  width: 66px;
  margin: 0;
  padding: 0 8px;
  border-right: 1px solid var(--v3-line);
  color: #65798d;
  font-size: 8.5px;
  line-height: 1.35;
  text-align: left;
}
.cadstudio-app .wsg-tools {
  gap: 5px;
}
.cadstudio-app .wsr-btn {
  display: grid;
  grid-template-columns: 30px auto;
  grid-template-rows: 1fr 1fr;
  align-items: center;
  justify-content: stretch;
  column-gap: 9px;
  min-width: 126px;
  min-height: 58px;
  padding: 6px 10px;
  border-color: transparent;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.018);
  color: #c7d4e0;
  text-align: left;
}
.cadstudio-app .wsr-btn:hover {
  border-color: #3b536b;
  background: #203142;
}
.cadstudio-app .wsr-btn.on,
.cadstudio-app .wsr-btn[aria-pressed='true'] {
  border-color: #438fdf;
  background: linear-gradient(135deg, #176ec8, #0e579f);
  box-shadow: 0 0 0 1px rgba(105, 177, 247, 0.12) inset;
  color: #fff;
}
.cadstudio-app .wsr-btn .wsr-i {
  grid-column: 1;
  grid-row: 1 / 3;
  width: 28px;
  height: 28px;
  margin: 0;
  color: #91c8ff;
}
.cadstudio-app .wsr-btn .wsr-i .ws-icon {
  width: 28px;
  height: 28px;
}
.cadstudio-app .wsr-btn[aria-pressed='true'] .wsr-i,
.cadstudio-app .wsr-btn.on .wsr-i {
  color: #fff;
}
.wsr-label {
  align-self: end;
  color: inherit;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.1;
}
.wsr-btn small {
  align-self: start;
  color: #75899d;
  font-size: 8.5px;
  line-height: 1.2;
}
.wsr-btn[aria-pressed='true'] small,
.wsr-btn.on small {
  color: #cce5ff;
}

/* three-column modeling workspace */
.cadstudio-app .ws-main {
  background: var(--v3-ink);
}
.ws-tree,
.cadstudio-app .ws-side {
  flex: 0 0 238px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  overflow-y: auto;
  background: var(--v3-panel);
}
.ws-tree {
  border-right: 1px solid #080d12;
}
.cadstudio-app .ws-side {
  flex-basis: 280px;
  border-left: 1px solid #080d12;
}
.cadstudio-app.v6-model-tree-closed .ws-tree,
.cadstudio-app.v6-inspector-closed .ws-side,
.cadstudio-app.v6-project-closed .ws-file-actions,
.cadstudio-app.v6-history-closed .wsp-history {
  display: none;
}
.cadstudio-app .is-agent-selected {
  box-shadow: inset 3px 0 #4db4ff;
  background: rgba(40, 126, 196, 0.2);
}
.cadstudio-app [data-v6-focused-action='true'] {
  outline: 2px solid #4db4ff;
  outline-offset: 2px;
}
.ws-v6-diagnostics .wsp-body {
  display: grid;
  gap: 8px;
}
.ws-v6-diagnostics .v6-diagnostic {
  padding: 8px;
  border: 1px solid #654b2c;
  border-radius: 4px;
  background: #2a2118;
  color: #f4d8aa;
  font-size: 11px;
}
.ws-panel-cap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 34px;
  padding: 0 10px;
  border-bottom: 1px solid var(--v3-line-soft);
  background: #111b25;
}
.ws-panel-cap span {
  color: #91a4b7;
  font: 700 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.12em;
}
.ws-panel-cap small {
  color: #53697d;
  font-size: 8.5px;
}
.ws-tree-document {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 50px;
  padding: 7px 10px;
  border-bottom: 1px solid var(--v3-line-soft);
  background: #192735;
}
.ws-tree-icon,
.ws-tree-icon .ws-icon {
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  color: #83bbf3;
}
.ws-tree-document > span:last-child {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.ws-tree-document b {
  color: #e4edf5;
  font-size: 11px;
}
.ws-tree-document small {
  color: #71859a;
  font-size: 9px;
}
.ws-origin {
  border-bottom: 1px solid var(--v3-line-soft);
  background: #15212d;
}
.ws-origin summary {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  min-height: 32px;
  padding: 0 10px;
  color: #9aabba;
  font-size: 10px;
  cursor: pointer;
  list-style: none;
}
.ws-origin summary::-webkit-details-marker {
  display: none;
}
.ws-origin summary span::before {
  content: '›';
  display: inline-block;
  margin-right: 7px;
  color: #5d7185;
  transform: rotate(90deg);
}
.ws-origin:not([open]) summary span::before {
  transform: rotate(0);
}
.ws-origin summary small {
  color: #52677a;
  font-size: 8.5px;
}
.ws-origin button {
  display: grid;
  grid-template-columns: 22px 1fr auto;
  align-items: center;
  width: 100%;
  min-height: 34px;
  padding: 0 10px 0 26px;
  border: 0;
  border-top: 1px solid rgba(255,255,255,.025);
  background: transparent;
  color: #9dafc0;
  font: inherit;
  font-size: 10.5px;
  text-align: left;
  cursor: pointer;
}

.datum-tree {
  display: grid;
  gap: 2px;
  padding: 2px 6px 7px 18px;
}
.datum-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  min-height: 28px;
  border: 1px solid transparent;
  border-radius: 3px;
  color: #bccbda;
}
.datum-row > button {
  min-width: 0;
  border: 0;
  background: none;
  color: inherit;
  text-align: left;
  cursor: pointer;
}
.datum-row small {
  color: #7890a7;
  font-size: 9px;
  text-transform: uppercase;
}
.datum-row[data-broken='true'] {
  border-color: #9a514d;
  color: #ffb4a9;
}
.datum-row [data-datum-action='edit'] {
  width: 28px;
  text-align: center;
}
.datum-row[data-broken='true'] [data-datum-action='edit'] {
  width: auto;
  min-height: 28px;
  padding: 0 7px;
  color: #ffcbc5;
  font-size: 9px;
  text-transform: uppercase;
}
.pattern-row { grid-template-columns: 1fr 28px 28px; }
.pattern-row > button:not(:first-child) {
  width: 28px;
  min-height: 28px;
  padding: 0;
  text-align: center;
}
.pattern-instance-row {
  display: grid;
  grid-template-columns: 1fr 28px 42px;
  align-items: center;
  min-height: 27px;
  margin-left: 14px;
  border-left: 1px solid #31485e;
  color: #91a9bf;
}
.pattern-instance-row.is-selected { color: #d8ecff; background: rgba(82, 118, 155, .18); }
.pattern-instance-row button {
  min-width: 0;
  min-height: 27px;
  padding: 0 6px;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  font-size: 10px;
  text-align: left;
  cursor: pointer;
}
.pattern-instance-row button:last-child { color: #7890a7; text-align: center; }
.pattern-instance-row label { display: grid; place-items: center; min-height: 27px; }
.assembly-row,
.mate-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 28px 28px;
  align-items: center;
  min-height: 30px;
  border: 1px solid transparent;
  border-radius: 3px;
  color: #b8c9d9;
}
.assembly-row.is-selected,
.assembly-leaf-row.is-selected,
.mate-row.is-selected { color: #d8ecff; background: rgba(82, 118, 155, .18); }
.assembly-row.is-suppressed,
.mate-row.is-suppressed { opacity: .55; }
.mate-row.is-failed { border-color: #9a514d; color: #ffb4a9; }
.assembly-row button,
.mate-row button,
.assembly-leaf-row button {
  min-width: 0;
  min-height: 28px;
  padding: 0 6px;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  font-size: 10px;
  text-align: left;
  cursor: pointer;
}
.assembly-row > button:not(:first-child),
.mate-row > button:not(:first-child) { padding: 0; text-align: center; }
.assembly-row span,
.mate-row span { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.assembly-row small,
.mate-row small,
.assembly-pattern-row small { display: block; color: #7890a7; font-size: 9px; text-transform: uppercase; }
.assembly-leaf-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 28px;
  min-height: 27px;
  margin-left: 14px;
  border-left: 1px solid #31485e;
  color: #91a9bf;
}
.assembly-leaf-row label { display: grid; place-items: center; min-height: 27px; }
.assembly-pattern-row { min-height: 30px; padding: 4px 6px; border-top: 1px solid rgba(255,255,255,.035); color: #a8bdd0; font-size: 10px; }
.inspection-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 28px;
  min-height: 30px;
  color: #adc0d1;
  border-left: 2px solid transparent;
}
.inspection-row.stage-group-row { grid-template-columns: minmax(0, 1fr) 28px 28px; }
.inspection-row.is-active { color: #d9edff; background: rgba(74, 127, 166, .17); border-left-color: #67b7f0; }
.inspection-row button {
  min-width: 0;
  min-height: 28px;
  padding: 2px 6px;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  font-size: 10px;
  text-align: left;
  cursor: pointer;
}
.inspection-row > button:not(:first-child) { padding: 0; text-align: center; }
.inspection-row span,
.inspection-row small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.inspection-row small,
.stage-leaf-row small { color: #7890a7; font-size: 9px; text-transform: uppercase; }
.stage-leaf-row { padding: 3px 6px 3px 12px; grid-template-columns: minmax(0, 1fr) auto; font-size: 10px; }
.inspection-results { max-height: 190px; overflow: auto; border-top: 1px solid rgba(255,255,255,.08); border-bottom: 1px solid rgba(255,255,255,.08); }
@media (max-width: 760px) {
  .pattern-row { grid-template-columns: minmax(0, 1fr) 44px 44px; min-height: 44px; }
  .pattern-row > button:first-child,
  .pattern-row > button:not(:first-child),
  .pattern-instance-row button,
  .pattern-instance-row label { min-width: 44px; min-height: 44px; }
  .pattern-instance-row { grid-template-columns: minmax(0, 1fr) 44px 52px; min-height: 44px; }
  .assembly-row,
  .mate-row { grid-template-columns: minmax(0, 1fr) 44px 44px; min-height: 44px; }
  .assembly-leaf-row { grid-template-columns: minmax(0, 1fr) 44px; min-height: 44px; }
  .assembly-row button,
  .mate-row button,
  .assembly-leaf-row button,
  .assembly-leaf-row label { min-width: 44px; min-height: 44px; }
  .inspection-row { grid-template-columns: minmax(0, 1fr) 44px; min-height: 44px; }
  .inspection-row.stage-group-row { grid-template-columns: minmax(0, 1fr) 44px 44px; }
  .inspection-row button { min-width: 44px; min-height: 44px; }
  [data-workspace='assembly'] { display: none; }
}

.ws-v5-command {
  width: min(520px, calc(100vw - 28px));
  padding: 0;
  border: 1px solid #52769b;
  border-radius: 5px;
  background: #1b2937;
  color: #d7e1eb;
  box-shadow: 0 18px 70px rgba(0, 0, 0, .55);
}
.ws-v5-command::backdrop { background: rgba(6, 12, 18, .68); }
.ws-v5-command form > header,
.ws-v5-command form > footer { padding: 14px 16px; background: #15212d; }
.ws-v5-command form > header span { color: #8fc1f5; font-size: 10px; letter-spacing: .1em; text-transform: uppercase; }
.ws-v5-command h2 { margin: 3px 0 0; font-size: 18px; }
.ws-v5-command-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 11px; padding: 16px; }
.ws-v5-command-fields label { display: grid; gap: 5px; color: #a9bacb; font-size: 11px; }
.ws-v5-command-fields .is-wide { grid-column: 1 / -1; }
.ws-v5-command-fields p { margin: 0; color: #8fa6bb; font-size: 11px; }
.ws-v5-command-fields input,
.ws-v5-command-fields select,
.ws-v5-command-fields textarea { min-height: 34px; border: 1px solid #3a5470; border-radius: 3px; background: #111b26; color: #eef5fc; padding: 5px 8px; font: inherit; }
.ws-v5-command-fields textarea { min-height: 132px; resize: vertical; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; line-height: 1.45; }
.ws-v5-command-fields select[multiple] { min-height: 112px; }
.ws-v6-command-preview {
  margin: 0 16px 12px;
  padding: 12px;
  border: 1px solid rgba(83, 169, 236, .48);
  border-radius: 4px;
  background: rgba(14, 34, 51, .88);
  box-shadow: inset 3px 0 0 #2c91df;
}
.ws-v6-command-preview[hidden] { display: none; }
.ws-v6-command-preview > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}
.ws-v6-command-preview span {
  color: #73baf0;
  font: 700 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .11em;
}
.ws-v6-command-preview b { color: #e6f3ff; font-size: 12px; }
.ws-v6-command-preview p { margin: 8px 0; color: #b8cadb; font-size: 11px; line-height: 1.45; }
.ws-v6-command-preview dl {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 10px;
  margin: 0;
  color: #91a9be;
  font: 10px/1.35 ui-monospace, SFMono-Regular, Menlo, monospace;
}
.ws-v6-command-preview dt { color: #6f8aa2; }
.ws-v6-command-preview dd { margin: 0; color: #c9d9e7; overflow-wrap: anywhere; }
.ws-v5-command-error { min-height: 18px; margin: 0; padding: 0 16px 10px; color: #ffb4a9; font-size: 11px; }
.ws-v5-command footer { display: flex; justify-content: flex-end; gap: 8px; }
.ws-v5-command footer button { min-height: 34px; padding: 0 15px; border: 1px solid #3a5470; border-radius: 3px; background: #22303f; color: #d7e1eb; cursor: pointer; }
.ws-v5-command footer .ws-primary { background: #0b5cad; border-color: #0b5cad; color: #fff; }
.ws-v5-command.with-gizmo {
  position: fixed;
  inset: auto 18px 52px auto;
  width: min(430px, calc(100vw - 36px));
  margin: 0;
  z-index: 20;
  box-shadow: 0 18px 54px rgba(0, 0, 0, .46);
}
.ws-v5-command.with-gizmo::backdrop { background: transparent; }
.ws-origin button:hover {
  background: #1b2c3b;
  color: #e2edf7;
}
.ws-origin kbd {
  color: #60768a;
  font: 700 8px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}
.cadstudio-app .wsp {
  background: transparent;
}
.cadstudio-app .wsp-head {
  min-height: 34px;
  padding: 0 10px;
  border-bottom: 1px solid var(--v3-line-soft);
  color: #879aac;
  font-size: 9px;
  letter-spacing: 0.08em;
}
.cadstudio-app .wsp-head > span:first-child {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.cadstudio-app .wsp-head small {
  color: #53697c;
  font-size: 8px;
  font-weight: 400;
  letter-spacing: normal;
  text-transform: none;
}
.ws-tree-rule {
  flex: 1;
  height: 1px;
  margin-left: 8px;
  background: var(--v3-line-soft);
}
.cadstudio-app .wsp-body {
  padding: 7px 8px 10px;
}
.cadstudio-app .hist {
  gap: 2px;
}
.cadstudio-app .hist-item {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  min-height: 44px;
  padding: 4px 6px;
  border-color: transparent;
  border-radius: 3px;
  background: transparent;
}
.cadstudio-app .hist-item:hover {
  background: #1c2d3d;
}
.cadstudio-app .hist-item.sel {
  border-color: #3e87cf;
  background: #193553;
  box-shadow: 3px 0 0 var(--v3-blue) inset;
}
.cadstudio-app .hist-item.err {
  border-color: #b44d4d;
  background: #38232a;
}
.cadstudio-app .hist-item .hi-sel {
  display: grid;
  grid-template-columns: 27px 1fr;
  grid-template-rows: auto auto;
  column-gap: 7px;
  align-items: center;
  margin: 0;
}
.hi-glyph {
  grid-column: 1;
  grid-row: 1 / 3;
  display: grid;
  place-items: center;
  width: 25px;
  height: 25px;
  border: 1px solid #385069;
  border-radius: 2px;
  background: #12202c;
  color: #8ebeea;
  font: 700 8px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}
.cadstudio-app .hist-item .hi-n {
  grid-column: 2;
  grid-row: 1;
  font-size: 10.5px;
}
.cadstudio-app .hist-item .hi-d {
  grid-column: 2;
  grid-row: 2;
  margin: 1px 0 0;
  color: #697e92;
  font-size: 8.5px;
}
.cadstudio-app .hist-item.sel .hi-n::before {
  content: '';
}
.cadstudio-app .hist-item .hi-a {
  display: flex;
}
.cadstudio-app .hist-item .hi-a button {
  min-width: 27px;
  min-height: 27px;
  margin: 0 0 0 3px;
  padding: 0 6px;
  border-color: #31485f;
  background: #182735;
  font-size: 9px;
}
.cadstudio-app .v6-revision-list {
  display: grid;
  gap: 2px;
  margin: 0 0 6px;
  padding: 0 0 6px;
  border-bottom: 1px solid #273b4e;
  list-style: none;
}
.cadstudio-app .v6-revision-item {
  display: grid;
  grid-template-columns: 27px 1fr;
  grid-template-rows: auto auto;
  column-gap: 7px;
  align-items: center;
  min-height: 40px;
  padding: 4px 6px;
  border: 1px solid transparent;
  border-radius: 3px;
  cursor: default;
  background: #10202d;
}
.cadstudio-app .v6-revision-item .hi-glyph {
  grid-column: 1;
  grid-row: 1 / 3;
}
.cadstudio-app .v6-revision-item .hi-n {
  grid-column: 2;
  grid-row: 1;
}
.cadstudio-app .v6-revision-item small {
  grid-column: 2;
  grid-row: 2;
  color: #697e92;
  font-size: 8.5px;
}
.cadstudio-app .v6-revision-item[aria-current='true'] {
  border-left-color: #3e87cf;
}
.ws-inspector-empty {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 7px;
  margin: 12px;
  padding: 16px 14px;
  border: 1px dashed #31475a;
  background: rgba(12, 20, 28, 0.28);
}
.ws-inspector-empty-icon,
.ws-inspector-empty-icon .ws-icon {
  width: 24px;
  height: 24px;
  color: #617d98;
}
.ws-inspector-empty b {
  color: #b7c6d4;
  font-size: 11px;
}
.ws-inspector-empty p {
  margin: 0;
  color: #63788c;
  font-size: 9.5px;
  line-height: 1.45;
}
.ws-selection-live {
  padding: 2px 5px;
  border: 1px solid rgba(47,140,255,.35);
  background: rgba(47,140,255,.08);
  color: #74b4f5;
  font: 700 7px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .08em;
}
.cadstudio-app #bw-context input[type='text'],
.cadstudio-app .param-row input {
  border-color: #344b61;
  background: #101b25;
  border-radius: 2px;
}

/* canvas instrumentation */
.cadstudio-app #bw-studio {
  background:
    radial-gradient(circle at 50% 44%, rgba(46, 67, 87, 0.23), transparent 42%),
    linear-gradient(180deg, #17232f 0%, #111b25 100%);
  box-shadow: 0 0 0 1px #0a1016 inset;
}
.cadstudio-app .mode-label {
  top: 12px;
  left: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 30px;
  padding: 0 11px;
  border: 1px solid rgba(89, 121, 150, 0.34);
  border-radius: 3px;
  background: rgba(10, 18, 26, 0.84);
  box-shadow: 0 7px 20px rgba(0,0,0,.18);
  color: #c6d4e1;
  font: 10.5px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  backdrop-filter: blur(8px);
}
.cadstudio-app .mode-label::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--v3-blue);
  box-shadow: 0 0 9px rgba(47,140,255,.75);
}
.ws-viewcube {
  position: absolute;
  top: 13px;
  right: 14px;
  z-index: 5;
  width: 110px;
  height: 104px;
  filter: drop-shadow(0 9px 12px rgba(0,0,0,.25));
}
.ws-viewcube-shape {
  position: relative;
  width: 110px;
  height: 80px;
}
.vc-face {
  position: absolute;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid #4a6177;
  color: #9db2c5;
  font: 700 7px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .04em;
  cursor: pointer;
}
.vc-face:hover,
.vc-face.on,
.vc-face[aria-pressed='true'] {
  color: #fff;
  border-color: #72b6f5;
  background-color: #246fad !important;
}
.vc-top {
  top: 0;
  left: 28px;
  width: 56px;
  height: 42px;
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
  background: #25384a;
}
.vc-front {
  top: 31px;
  left: 0;
  width: 56px;
  height: 43px;
  clip-path: polygon(0 0, 100% 25%, 100% 100%, 0 74%);
  background: #1c2c3a;
}
.vc-right {
  top: 31px;
  right: 0;
  width: 56px;
  height: 43px;
  clip-path: polygon(0 25%, 100% 0, 100% 74%, 0 100%);
  background: #213344;
}
.vc-iso {
  position: absolute;
  right: 3px;
  bottom: 0;
  min-width: 34px;
  min-height: 22px;
  border: 1px solid #3b5268;
  border-radius: 2px;
  background: rgba(12, 21, 29, .84);
  color: #7991a7;
  font: 700 7px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  cursor: pointer;
}
.vc-iso:hover,
.vc-iso.on,
.vc-iso[aria-pressed='true'] {
  border-color: #5ca7ed;
  color: #ddecfa;
  background: #194d7d;
}
.ws-nav-rail {
  position: absolute;
  right: 17px;
  top: 126px;
  z-index: 5;
  display: flex;
  flex-direction: column;
  border: 1px solid #2d4357;
  border-radius: 3px;
  background: rgba(10, 18, 26, .82);
  box-shadow: 0 8px 20px rgba(0,0,0,.2);
  backdrop-filter: blur(8px);
}
.ws-nav-rail button {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  padding: 0;
  border: 0;
  border-bottom: 1px solid #2b3d4e;
  background: transparent;
  color: #7991a7;
  cursor: pointer;
}
.ws-nav-rail button:last-child {
  border-bottom: 0;
}
.ws-nav-rail button:hover,
.ws-nav-rail button[aria-pressed='true'] {
  background: #1e3447;
  color: #9dd0ff;
}
.ws-nav-rail button span:last-child {
  display: none;
}
.ws-hud-icon,
.ws-hud-icon .ws-icon {
  width: 18px;
  height: 18px;
}
.ws-axis-triad {
  position: absolute;
  left: 22px;
  bottom: 22px;
  z-index: 3;
  width: 74px;
  height: 67px;
  color: #93a6b8;
  font: 700 8px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  pointer-events: none;
}
.ws-axis-triad i,
.ws-axis-triad::before,
.ws-axis-triad::after {
  content: '';
  position: absolute;
  left: 34px;
  bottom: 16px;
  width: 31px;
  height: 2px;
  transform-origin: left center;
}
.ws-axis-triad::before {
  background: #ef6464;
  transform: rotate(-18deg);
}
.ws-axis-triad::after {
  background: #65c98a;
  transform: rotate(202deg);
}
.ws-axis-triad i {
  width: 2px;
  height: 36px;
  background: #5d9cf5;
  transform: none;
}
.ws-axis-triad span {
  position: absolute;
}
.axis-x { right: 0; bottom: 2px; color: #ff8585; }
.axis-y { left: 0; bottom: 8px; color: #7fdda1; }
.axis-z { left: 31px; top: 0; color: #80b4ff; }
.cadstudio-app .pick-bar {
  top: 12px;
  left: 50%;
  right: auto;
  max-width: calc(100% - 300px);
  transform: translateX(-50%);
  border-color: #49647d;
  border-radius: 3px;
  background: rgba(16, 29, 41, .95);
  box-shadow: 0 10px 28px rgba(0,0,0,.28);
  backdrop-filter: blur(10px);
}

/* command surface and machine status */
.cadstudio-app .ws-cmd {
  min-height: 34px;
  padding: 4px 10px;
  gap: 8px;
  border-top-color: #070c11;
  background: #0d151e;
  color: #aebfd0;
  font-size: 10.5px;
}
.ws-command-prompt {
  display: grid;
  place-items: center;
  width: 18px;
  height: 18px;
  border: 1px solid #31506d;
  color: #77b9f7;
  font-size: 14px;
}
.ws-command-help {
  margin-left: auto;
  color: #52677a;
  font-size: 8.5px;
}
.cadstudio-app .ws-cmd-actions {
  margin-left: 6px;
}
.cadstudio-app .ws-status {
  min-height: 25px;
  gap: 14px;
  padding: 0 10px;
  border-top: 1px solid #1c4f82;
  background: #133f6b;
  color: #bdd8f0;
  font: 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}
.ws-status-mode {
  padding-right: 11px;
  border-right: 1px solid rgba(255,255,255,.15);
  color: #fff;
  font-weight: 700;
  letter-spacing: .08em;
}
.ws-kernel-state {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #a8cae7;
}

@media (max-width: 1080px) {
  .ws-tree { flex-basis: 210px; }
  .cadstudio-app .ws-side { flex-basis: 250px; }
  .cadstudio-app .wsr-btn { min-width: 112px; }
  .ws-document { min-width: 210px; }
  .ws-export-btn span:first-child { display: none; }
}

@media (max-width: 760px) {
  .cadstudio-app .ws-appbar {
    grid-template-columns: auto 1fr auto;
    min-height: 48px;
    gap: 7px;
  }
  .ws-brand > span:last-child,
  .ws-document-kind,
  .ws-document .ws-local {
    display: none;
  }
  .ws-document {
    min-width: 0;
    height: 34px;
  }
  .ws-document .ws-project-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .ws-edit-actions,
  .ws-file-actions {
    display: none;
  }
  .cadstudio-app .ws-app-actions .ws-quick-btn {
    min-width: 44px;
    min-height: 44px;
  }
  .cadstudio-app.m-open-project .ws-file-actions {
    position: fixed;
    left: 0;
    right: 0;
    bottom: var(--bw-sheet-bottom, 0px);
    z-index: 32;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 7px;
    padding: 12px 12px 14px;
    border: 0;
    border-top: 1px solid #405b72;
    background: #172634;
    box-shadow: 0 -10px 28px rgba(0,0,0,.42);
  }
  .cadstudio-app.m-open-project .ws-file-actions .ws-quick-btn {
    flex-direction: column;
    gap: 6px;
    min-height: 48px;
    border-color: #365069;
    background: #1d3041;
    color: #c9d8e6;
    font-size: 10px;
  }
  .cadstudio-app.m-open-project .ws-file-actions .ws-quick-btn > span {
    display: inline !important;
  }
  .cadstudio-app.m-open-project .ws-file-actions .ws-export-btn {
    flex-direction: column-reverse;
  }
  .cadstudio-app.m-open-project .ws-file-actions .ws-action-divider {
    display: none;
  }
  .ws-workspace-bar {
    min-height: 42px;
    padding: 0;
    overflow-x: auto;
  }
  .ws-workspaces button {
    min-width: 78px;
    min-height: 42px;
    padding: 0 10px;
  }
  .ws-workspace-state {
    display: none;
  }
  .ws-ribbon-panel {
    min-height: 66px;
    padding: 5px 6px;
  }
  .cadstudio-app .ws-group {
    padding-left: 0;
  }
  .cadstudio-app .wsg-title {
    display: none;
  }
  .cadstudio-app .wsr-btn {
    min-width: 108px;
    min-height: 56px;
    padding: 5px 8px;
  }
  .ws-tree,
  .cadstudio-app .ws-side {
    display: contents;
  }
  .ws-tree > :not(.wsp-history),
  .ws-tree .wsp,
  .cadstudio-app .ws-side .wsp,
  .ws-inspector-empty,
  .cadstudio-app .ws-side > .ws-panel-cap {
    display: none;
  }
  #bw-context-wrap:not([hidden]),
  .cadstudio-app.m-open-params .ws-side .wsp-params,
  .cadstudio-app.m-open-history .ws-tree .wsp-history {
    display: block;
    position: fixed;
    left: 0;
    right: 0;
    bottom: var(--bw-sheet-bottom, 0px);
    z-index: 30;
    max-height: 46%;
    overflow-y: auto;
    padding: 4px 10px 12px;
    border-top: 1px solid #405b72;
    border-radius: 9px 9px 0 0;
    background: #172634;
    box-shadow: 0 -10px 28px rgba(0,0,0,.42);
  }
  .cadstudio-app[data-document-kind='assembly'].m-open-history .ws-tree {
    display: block;
    position: fixed;
    left: 0;
    right: 0;
    bottom: var(--bw-sheet-bottom, 0px);
    z-index: 30;
    max-height: 54%;
    overflow-y: auto;
    padding: 6px 10px 12px;
    border-top: 1px solid #405b72;
    border-radius: 9px 9px 0 0;
    background: #172634;
    box-shadow: 0 -10px 28px rgba(0,0,0,.42);
  }
  .cadstudio-app[data-document-kind='assembly'].m-open-history .ws-tree > .ws-assemblies,
  .cadstudio-app[data-document-kind='assembly'].m-open-history .ws-tree > .ws-mates,
  .cadstudio-app[data-document-kind='assembly'].m-open-history .ws-tree > .ws-inspection {
    display: block;
  }
  .cadstudio-app[data-document-kind='assembly'].m-open-history .ws-tree .datum-tree button,
  .cadstudio-app[data-document-kind='assembly'].m-open-history .ws-tree summary {
    min-height: 44px;
  }
  .ws-mtabs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }
  .ws-viewcube {
    top: 8px;
    right: 7px;
    transform: scale(.78);
    transform-origin: top right;
  }
  .ws-nav-rail {
    top: auto;
    right: 9px;
    bottom: 9px;
    flex-direction: row;
  }
  .ws-nav-rail button {
    width: 44px;
    height: 44px;
    border-right: 1px solid #2b3d4e;
    border-bottom: 0;
  }
  .ws-axis-triad {
    left: 10px;
    bottom: 10px;
    transform: scale(.78);
    transform-origin: bottom left;
  }
  .cadstudio-app .mode-label {
    top: 8px;
    left: 8px;
    max-width: calc(100% - 105px);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .cadstudio-app .pick-bar {
    top: 48px;
    left: 8px;
    right: 8px;
    max-width: none;
    transform: none;
  }
  .ws-command-help {
    display: none;
  }
  .cadstudio-app .ws-cmd-actions {
    margin-left: auto;
  }
  .ws-status-mode,
  .ws-kernel-state {
    display: none;
  }
}

/* ----------------------------------------------------------------------
   CAD desktop chrome — the tutorial video's information architecture.
   A narrow application title strip, text tabs, a dense grouped ribbon,
   document tabs, then the uninterrupted modeling viewport.
   ---------------------------------------------------------------------- */
.cadstudio-app {
  --cad-title: #1b222c;
  --cad-tabs: #222b36;
  --cad-ribbon: #303a47;
  --cad-ribbon-deep: #29333f;
  --cad-viewport: #1b242d;
  --cad-line: #485361;
  --cad-line-soft: #35404d;
  --cad-text: #d6dde5;
  --cad-muted: #8d9aa7;
  --cad-blue: #4b9bd3;
  --v3-ink: var(--cad-viewport);
  --v3-rail: var(--cad-tabs);
  --v3-panel: #202a35;
  --v3-panel-2: #26313d;
  --v3-line: var(--cad-line);
  --v3-line-soft: var(--cad-line-soft);
  --v3-text: var(--cad-text);
  --v3-muted: var(--cad-muted);
  --v3-blue: var(--cad-blue);
  font-family: "Segoe UI", Arial, ui-sans-serif, sans-serif;
}

/* quick-access and title bar */
.cadstudio-app .ws-appbar {
  min-height: 32px;
  height: 32px;
  grid-template-columns: minmax(170px, 1fr) minmax(210px, auto) minmax(420px, 1fr);
  gap: 8px;
  padding: 0 7px;
  border-bottom: 1px solid #10161d;
  background: var(--cad-title);
  box-shadow: 0 1px rgba(255, 255, 255, 0.035) inset;
}
.cadstudio-app .ws-brand {
  min-width: 0;
  gap: 7px;
}
.cadstudio-app .ws-brand-mark {
  width: 22px;
  height: 22px;
  border-color: #526171;
  border-radius: 1px;
  background: #283542;
  color: #b7d9f1;
  font-size: 7px;
}
.cadstudio-app .ws-brand b {
  color: #ccd5de;
  font-size: 10px;
  font-weight: 600;
}
.cadstudio-app .ws-brand small {
  display: none;
}
.cadstudio-app .ws-document {
  justify-self: center;
  min-width: 0;
  max-width: 420px;
  height: 30px;
  overflow: hidden;
  border: 0;
  background: transparent;
  box-shadow: none;
  color: #b9c3cd;
  white-space: nowrap;
}
.cadstudio-app .ws-document-kind {
  align-self: center;
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  height: 10px;
  padding: 0;
  border: 0;
  color: #aeb9c4;
  font: 600 10px/1 "Segoe UI", Arial, sans-serif;
  letter-spacing: 0;
  white-space: nowrap;
}
.cadstudio-app .ws-document-separator {
  align-self: center;
  flex: 0 0 auto;
  margin: 0 5px;
  color: #65717e;
  font: 400 10px/1 "Segoe UI", Arial, sans-serif;
}
.cadstudio-app .ws-document .ws-project-name,
.cadstudio-app .ws-document-suffix {
  align-self: center;
  flex: 0 1 auto;
  min-width: 0;
  padding: 0;
  color: #d2dae2;
  font-size: 10px;
  line-height: 1;
  white-space: nowrap;
}
.cadstudio-app .ws-document .ws-project-name {
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cadstudio-app .ws-document-suffix {
  flex: 0 0 auto;
  margin-left: 5px;
  color: #808d99;
}
.cadstudio-app .ws-document .ws-local {
  align-self: center;
  flex: 0 0 auto;
  margin-left: 8px;
  padding: 0;
  font-size: 8px;
  line-height: 1;
}
.cadstudio-app .ws-app-actions {
  justify-self: end;
  gap: 0;
}
.cadstudio-app .ws-edit-actions,
.cadstudio-app .ws-file-actions {
  gap: 0;
  padding-right: 2px;
  border-right-color: #3a4551;
}
.cadstudio-app .ws-app-actions .ws-quick-btn,
.cadstudio-app .ws-app-actions .ws-quick-labeled {
  min-width: 28px !important;
  min-height: 27px;
  height: 27px;
  gap: 0;
  padding: 0 5px;
  border-radius: 1px;
}
.cadstudio-app .ws-app-actions .ws-quick-btn > span:not(.ws-quick-icon):not(.ws-visually-hidden),
.cadstudio-app .ws-export-btn > span:first-child,
.cadstudio-app .ws-clear-label {
  display: none;
}
.cadstudio-app .ws-app-actions .ws-quick-btn:hover,
.cadstudio-app .ws-app-actions .ws-quick-btn[aria-pressed='true'] {
  border-color: #596979;
  background: #344250;
}
.cadstudio-app .ws-app-actions .ws-quick-icon,
.cadstudio-app .ws-app-actions .ws-quick-icon .ws-icon {
  width: 15px;
  height: 15px;
}
.cadstudio-app .ws-action-divider {
  height: 18px;
  background: #3d4855;
}

/* tab rail */
.cadstudio-app .ws-ribbon {
  flex: 0 0 auto;
  border-bottom: 1px solid #111820;
  background: var(--cad-tabs);
}
.cadstudio-app .ws-workspace-bar {
  min-height: 29px;
  height: 29px;
  padding: 0 5px;
  border-bottom: 1px solid #45505d;
  background: var(--cad-tabs);
}
.cadstudio-app .ws-workspaces {
  gap: 0;
}
.cadstudio-app .ws-workspaces button {
  min-width: 0;
  padding: 0 13px;
  color: #b5c0ca;
  font: 400 11px/1 "Segoe UI", Arial, sans-serif;
  letter-spacing: 0;
  text-transform: none;
}
.cadstudio-app .ws-workspaces button::after {
  left: 8px;
  right: 8px;
  height: 2px;
}
.cadstudio-app .ws-workspaces button:hover:not(:disabled) {
  background: #34404d;
  color: #f1f5f8;
}
.cadstudio-app .ws-workspaces button[aria-selected='true'] {
  background: var(--cad-ribbon);
  color: #fff;
}
.cadstudio-app .ws-workspaces button[aria-selected='true']::after {
  background: var(--cad-blue);
  box-shadow: none;
}
.cadstudio-app .ws-workspaces button:disabled {
  color: #687581;
}
.cadstudio-app .ws-workspace-state {
  gap: 6px;
  padding-right: 6px;
}
.cadstudio-app .ws-workspace-state > span {
  width: 5px;
  height: 5px;
  background: var(--cad-blue);
  box-shadow: none;
}
.cadstudio-app .ws-workspace-state b {
  color: #aeb9c3;
  font-size: 9px;
  font-weight: 500;
}
.cadstudio-app .ws-workspace-state small {
  color: #778491;
  font-size: 8px;
}

/* dense grouped ribbon */
.cadstudio-app .ws-ribbon-panel {
  align-items: stretch;
  min-height: 112px;
  height: 112px;
  padding: 4px 4px 2px;
  background: var(--cad-ribbon);
  scrollbar-color: #637181 #2b3541;
}
.cadstudio-app .ws-ribbon-panel[hidden] {
  display: none;
}
.cadstudio-app .ws-group {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  min-width: max-content;
  height: 104px;
  padding: 0 7px 18px;
  border-right: 1px solid #1f2832;
  box-shadow: 1px 0 rgba(255, 255, 255, 0.055);
}
.cadstudio-app .wsg-title {
  position: absolute;
  left: 4px;
  right: 4px;
  top: auto;
  bottom: 1px;
  display: block;
  width: auto;
  height: 15px;
  margin: 0;
  padding: 2px 5px 0;
  border: 0;
  color: #9ca8b3;
  font: 400 9px/1 "Segoe UI", Arial, sans-serif;
  text-align: center;
  white-space: nowrap;
}
.cadstudio-app .wsg-tools {
  display: flex;
  align-items: stretch;
  gap: 2px;
  height: 82px;
}
.cadstudio-app .wsg-stack {
  display: grid;
  grid-auto-flow: column;
  grid-template-rows: repeat(3, 22px);
  grid-auto-columns: minmax(124px, auto);
  gap: 1px 3px;
}
.cadstudio-app .wsr-btn,
.cadstudio-app .wsr-btn.is-large,
.cadstudio-app .wsr-btn.is-compact {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 6px;
  min-width: 0;
  min-height: 0;
  margin: 0;
  padding: 2px 6px;
  border: 1px solid transparent;
  border-radius: 1px;
  background: transparent;
  color: var(--cad-text);
  box-shadow: none;
  text-align: left;
}
.cadstudio-app .wsr-btn.is-large {
  flex-direction: column;
  justify-content: center;
  gap: 3px;
  width: 62px;
  height: 82px;
  padding: 4px 5px 3px;
  text-align: center;
}
.cadstudio-app .wsr-btn.is-compact {
  flex-direction: row;
  width: 100%;
  height: 22px;
  padding: 1px 5px;
}
.cadstudio-app .wsr-btn:hover {
  border-color: #71808e;
  background: #43515f;
}
.cadstudio-app .wsr-btn.on,
.cadstudio-app .wsr-btn[aria-pressed='true'] {
  border-color: #76b5df;
  background: #316f9b;
  box-shadow: 0 0 0 1px rgba(255,255,255,.08) inset;
}
.cadstudio-app .wsr-btn .wsr-i,
.cadstudio-app .wsr-btn .wsr-i .ws-icon {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin: 0;
  color: #a7d0eb;
}
.cadstudio-app .wsr-btn.is-large .wsr-i,
.cadstudio-app .wsr-btn.is-large .wsr-i .ws-icon {
  width: 34px;
  height: 34px;
}
.cadstudio-app .wsr-btn .wsr-label {
  align-self: auto;
  color: inherit;
  font: 400 10px/1.1 "Segoe UI", Arial, sans-serif;
  white-space: nowrap;
}
.cadstudio-app .wsr-btn.is-large .wsr-label {
  font-size: 10px;
}
.cadstudio-app .wsr-btn small {
  display: none;
}

/* open-document rail */
.cadstudio-app .ws-document-tabs {
  flex: 0 0 32px;
  display: flex;
  align-items: stretch;
  min-height: 32px;
  border-top: 1px solid #46515d;
  border-bottom: 1px solid #111820;
  background: #202934;
  color: #adb8c2;
}
.cadstudio-app .ws-document-tabs a,
.cadstudio-app .ws-document-tabs button {
  border: 0;
  border-right: 1px solid #111820;
  background: transparent;
  color: inherit;
  font: 400 10px/1 "Segoe UI", Arial, sans-serif;
  text-decoration: none;
  cursor: pointer;
}
.cadstudio-app .ws-doc-menu {
  display: grid;
  place-items: center;
  width: 37px;
  font-size: 15px !important;
}
.cadstudio-app .ws-doc-start {
  display: grid;
  place-items: center;
  min-width: 58px;
  padding: 0 12px;
}
.cadstudio-app .ws-doc-tab {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 145px;
  max-width: 260px;
  padding: 0 15px 0 10px;
  border-right: 1px solid #111820;
  background: #303b47;
  color: #eef2f5;
  font-size: 10px;
}
.cadstudio-app .ws-doc-tab::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--cad-blue);
}
.cadstudio-app .ws-doc-tab > span:nth-child(2) {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.cadstudio-app .ws-doc-tab i {
  width: 5px;
  height: 5px;
  margin-left: auto;
  border-radius: 50%;
  background: #62bf85;
}
.cadstudio-app .ws-doc-cube {
  color: #91c7e8;
  font-size: 15px;
}
.cadstudio-app .ws-doc-new {
  width: 35px;
  font-size: 18px !important;
}
.cadstudio-app .ws-document-tabs a:hover,
.cadstudio-app .ws-document-tabs button:hover {
  background: #36434f;
  color: #fff;
}
.cadstudio-app .ws-doc-spacer {
  flex: 1;
}
.cadstudio-app .ws-visual-style {
  display: flex;
  align-items: center;
  padding: 0 11px;
  color: #7f8d9b;
  font: 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}
.cadstudio-app .ws-main,
.cadstudio-app #bw-studio {
  min-height: 0;
}
.cadstudio-app #bw-studio {
  background: var(--cad-viewport);
}

@media (max-width: 1180px) {
  .cadstudio-app .ws-appbar {
    grid-template-columns: minmax(120px, 1fr) minmax(180px, auto) minmax(300px, 1fr);
  }
  .cadstudio-app .ws-document-suffix,
  .cadstudio-app .ws-document .ws-local,
  .cadstudio-app .ws-workspace-state small {
    display: none;
  }
  .cadstudio-app .ws-workspaces button {
    padding-inline: 10px;
  }
}

@media (min-width: 761px) and (max-width: 960px) {
  .cadstudio-app .ws-document {
    max-width: 160px;
  }
  .cadstudio-app .ws-document-kind,
  .cadstudio-app .ws-document-separator {
    display: none;
  }
}

@media (min-width: 761px) and (max-width: 820px) {
  .cadstudio-app .ws-document {
    max-width: 100px;
  }
}

@media (max-width: 760px) {
  .cadstudio-app .ws-appbar {
    min-height: 38px;
    height: 38px;
    grid-template-columns: 31px minmax(0, 1fr) auto;
    gap: 4px;
    padding: 0 4px;
  }
  .cadstudio-app .ws-brand-mark {
    width: 26px;
    height: 26px;
  }
  .cadstudio-app .ws-brand > span:last-child,
  .cadstudio-app .ws-document-kind,
  .cadstudio-app .ws-document-separator,
  .cadstudio-app .ws-document-suffix,
  .cadstudio-app .ws-document .ws-local {
    display: none;
  }
  .cadstudio-app .ws-document {
    justify-self: stretch;
    height: 34px;
  }
  .cadstudio-app .ws-document .ws-project-name {
    display: block;
    width: 100%;
    padding-left: 5px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .cadstudio-app .ws-app-actions .ws-quick-btn,
  .cadstudio-app .ws-app-actions .ws-quick-labeled {
    min-width: 36px !important;
    min-height: 36px;
    height: 36px;
  }
  .cadstudio-app .ws-workspace-bar {
    min-height: 38px;
    height: 38px;
    padding: 0;
    overflow-x: auto;
  }
  .cadstudio-app .ws-workspaces button {
    min-width: auto;
    min-height: 38px;
    padding: 0 13px;
    white-space: nowrap;
  }
  .cadstudio-app .ws-ribbon-panel {
    min-height: 78px;
    height: 78px;
    padding: 3px;
  }
  .cadstudio-app .ws-group {
    height: 70px;
    padding: 0 4px;
  }
  .cadstudio-app .wsg-title {
    display: none;
  }
  .cadstudio-app .wsg-tools,
  .cadstudio-app .wsg-stack {
    display: flex;
    align-items: stretch;
    gap: 2px;
    height: 70px;
  }
  .cadstudio-app .wsr-btn,
  .cadstudio-app .wsr-btn.is-large,
  .cadstudio-app .wsr-btn.is-compact {
    flex: 0 0 66px;
    flex-direction: column;
    justify-content: center;
    gap: 3px;
    width: 66px;
    min-width: 66px;
    height: 68px;
    min-height: 44px;
    padding: 3px 4px;
    text-align: center;
  }
  .cadstudio-app .wsr-btn .wsr-i,
  .cadstudio-app .wsr-btn .wsr-i .ws-icon,
  .cadstudio-app .wsr-btn.is-large .wsr-i,
  .cadstudio-app .wsr-btn.is-large .wsr-i .ws-icon {
    width: 27px;
    height: 27px;
  }
  .cadstudio-app .wsr-btn .wsr-label {
    max-width: 62px;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 9px;
  }
  .cadstudio-app .ws-document-tabs {
    flex-basis: 32px;
    min-height: 32px;
  }
  .cadstudio-app .ws-doc-start,
  .cadstudio-app .ws-visual-style {
    display: none;
  }
  .cadstudio-app .ws-doc-tab {
    min-width: 0;
    max-width: none;
    flex: 1;
  }
}