/* InvictusCad NG — design tokens (Solaris system) + layout.
   State-driven rendering; no frameworks. */
/* colours, type scale, radii, spacing: /static/shared/tokens.css; buttons, badges, panels, tables, tabs, top bar: components.css */
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; overflow: hidden; }
body { background: var(--hull-0); color: var(--ink); font: var(--fs-ui)/1.5 var(--sans); }
button { background: var(--hull-2); color: var(--ink); border: 1px solid var(--rule);
  border-radius: var(--r); padding: 4px 10px; font: var(--fs-meta) var(--sans); cursor: pointer; }
button:hover { border-color: var(--rule-strong); background: var(--hull-3); }
button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 1px; }
input, textarea, select { background: var(--hull-1); color: var(--ink);
  border: 1px solid var(--rule); border-radius: var(--r); padding: 6px 8px; font: var(--fs-ui) var(--sans); }
input:focus, textarea:focus { border-color: var(--accent); }
a { color: var(--accent); text-decoration: none; }
.mono { font-family: var(--mono); }
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-thumb { background: var(--rule-strong); border-radius: 5px; border: 2px solid var(--hull-0); }

#app { height: 100%; display: flex; flex-direction: column; }
.spacer { flex: 1; }
.chip { font-size: var(--fs-meta); color: var(--ink-2); border: 1px solid var(--rule);
  padding: 3px 9px; border-radius: 999px; cursor: pointer; }

#cols { flex: 1; display: flex; min-height: 0; }
#rail { width: 264px; flex: none; background: var(--hull-1); border-right: 1px solid var(--rule);
  display: flex; flex-direction: column; min-height: 0; overflow-y: auto; }
#chat { width: var(--chat-w, 440px); flex: none; background: var(--hull-1);
  border-right: 1px solid var(--rule); display: flex; flex-direction: column; min-height: 0; }
#work { flex: 1; display: flex; flex-direction: column; min-width: 0; }
#lib { width: var(--lib-w, 262px); flex: none; background: var(--hull-1);
  border-left: 1px solid var(--rule); display: flex; flex-direction: column; min-height: 0; }
.hidden { display: none !important; }
.split { width: 5px; flex: none; cursor: col-resize; background: transparent; }
.split:hover { background: var(--rule-strong); }


/* chat */
#chatHead { display: flex; align-items: center; gap: 8px; padding: 10px 12px;
  border-bottom: 1px solid var(--rule); font-weight: 600; font-size: var(--fs-ui); background: var(--hull-2); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ink-4); }
.dot.think { background: var(--warn); }
#stream { flex: 1; overflow-y: auto; padding: 12px; display: flex; flex-direction: column; gap: 10px; }
.msg.user { max-width: 86%; margin-left: auto; background: var(--hull-4); border: 1px solid var(--rule-strong);
  border-radius: 10px 10px 2px 10px; padding: 8px 12px; font-size: var(--fs-ui); white-space: pre-wrap; }
.frame { background: var(--hull-2); border: 1px solid var(--rule);
  border-radius: var(--r); padding: 8px 11px; font-size: var(--fs-meta); line-height: 1.5; animation: in .18s ease; }
@keyframes in { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; } }
.frame .fh { display: flex; align-items: center; gap: 7px; font-size: var(--fs-meta); color: var(--ink-3);
  font-weight: 600; letter-spacing: .4px; text-transform: uppercase; }
.frame .fh .ico { color: var(--accent); font-family: var(--mono); }
.frame .fb { margin-top: 6px; font-size: var(--fs-meta); white-space: pre-wrap; overflow-wrap: anywhere; }   /* a whole cited source line wraps at 390 px (WP32(c)) */
.frame .fh > span:not(.ico) { min-width: 0; overflow-wrap: anywhere; }
.frame.tool { border-left-color: var(--accent); }
.frame.ok { border-left-color: var(--ok); }
.frame.warn { border-left-color: var(--warn); }
.frame.err { border-left-color: var(--err); }
.run-head { display: flex; align-items: center; gap: 8px; padding: 6px 8px; border: 1px solid var(--rule);
  border-radius: 7px; cursor: pointer; background: var(--hull-2); user-select: none; }
.run-head::before { content: "\25b8"; color: var(--ink-4); font-size: 10px; transition: transform .12s; }
.run-head.open::before { transform: rotate(90deg); }
.run-head .rt { flex: 1; font-weight: 600; font-size: var(--fs-meta); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pill { font-size: var(--fs-meta); font-weight: 600;
  padding: 1px 8px; border-radius: 999px; border: 1px solid var(--rule-strong); color: var(--ink-3); }
.pill.run { color: var(--accent); border-color: var(--accent); }      /* in progress: the info tone (UX 1), like the bar under a running chat */
.pill.ask { color: var(--warn); border-color: var(--warn); }          /* waiting on you: the needs_you tone, amber */
.pill.ok { color: var(--ok); border-color: var(--ok); }
.run-body { padding: 6px 0 2px 8px; border-left: 1px solid var(--rule-strong); margin-left: 8px;
  display: flex; flex-direction: column; gap: 8px; }
.qgroup { border: 1px dashed var(--rule-strong); border-radius: 8px; padding: 8px; background: var(--hull-1); }
.qgroup-h { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.qgroup-h .qt { font-size: var(--fs-meta); font-weight: 700; letter-spacing: .6px; color: var(--ink-3); text-transform: uppercase; }
.qgroup-h button { margin-left: auto; font-size: var(--fs-meta); color: var(--accent); border-color: var(--accent); }
.q-opts { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.q-opts button.rec { border-color: var(--accent); color: var(--accent); }
.composer { border-top: 1px solid var(--rule); padding: 10px; display: flex; gap: 8px; align-items: flex-end; }
.composer textarea { flex: 1; resize: none; border-radius: 8px; font-size: var(--fs-ui); min-width: 0; }
/* drag the grip above the message box to resize it (2026-10-02) */
.composer-grip { height: 8px; flex: none; position: relative; cursor: row-resize;
  border-top: 1px solid var(--rule); touch-action: none; }
.composer-grip::after { content: ""; position: absolute; left: 50%; top: 2px; width: 36px; height: 3px;
  margin-left: -18px; border-radius: 2px; background: var(--rule-strong); opacity: .6; }
.composer-grip:hover::after, .composer-grip.on::after, .composer-grip:focus-visible::after { background: var(--accent); opacity: 1; }
.composer-grip + .composer { border-top: none; }
.composer .send { padding: 7px 14px; background: var(--accent-deep); color: #fff; border: none; font-weight: 600; }
/* Stop sits beside Send and appears only while an agent is running. Amber, so it
   reads as "interrupt", not "confirm". */
.composer #stop { padding: 7px 12px; background: var(--hull-3); color: var(--warn);
  border: 1px solid var(--rule-strong); font-weight: 600; }
.composer #stop:hover { border-color: var(--warn); }
.think-row { display: flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: var(--fs-meta); color: var(--ink-3); }
.think-row .pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--warn); animation: pu 1.1s infinite; }
@keyframes pu { 0%,100% { opacity: .25; } 50% { opacity: 1; } }

/* workspace */
#wstabs { height: 36px; flex: none; display: flex; align-items: center; gap: 2px; padding: 0 10px;
  border-bottom: 1px solid var(--rule); background: var(--hull-2);
  overflow-x: auto; overflow-y: hidden; }      /* UX tidy 10-15b: "Checks & documents" at 360 px scrolls, never clips */
.wtab { background: none; border: none; border-radius: 0; padding: 9px 12px; color: var(--ink-3);
  font-size: var(--fs-meta); border-bottom: 2px solid transparent; white-space: nowrap; }
.wtab.on { color: var(--ink); border-bottom-color: var(--accent); }
.wtab:hover, .wmenu:hover { color: var(--ink); background: var(--hull-3); }
.wmenu { display: block; width: 100%; text-align: left; background: none; border: none;
  border-radius: 6px; padding: 7px 10px; font-size: var(--fs-meta); color: var(--ink-2); }
#tabsMenu { backdrop-filter: blur(6px); }
.wpane { flex: 1; position: relative; display: none; min-height: 0; }
.wpane.on { display: flex; }
#gl { width: 100%; height: 100%; display: block; outline: none; }
/* The viewer toolbar must never clip. Eleven buttons — ISO/FRONT/TOP/RIGHT,
   W/E/D, FIT and the measure·section·highlight chips — in a pane that can be
   ~520 CSS px wide: the last few overflowed the pane and were simply not there,
   which left the measure and highlight tools implemented but unreachable
   (2026-09-16). Wrap instead of running off the edge. */
.hud { position: absolute; top: 10px; left: 10px; display: flex; gap: 5px;
  flex-wrap: wrap; row-gap: 5px; max-width: calc(100% - 20px); align-items: flex-start; }
.hud button { font-size: var(--fs-meta); padding: 3px 8px; background: var(--hull-1); }
.hud button.on { color: var(--accent); border-color: var(--accent); }
#toasts { position: fixed; right: 14px; bottom: 58px; z-index: 80; display: flex; flex-direction: column; gap: 8px; }
.toast { background: var(--hull-2); border: 1px solid var(--rule-strong);
  border-radius: 8px; padding: 9px 13px; font-size: var(--fs-ui); box-shadow: var(--shadow); animation: in .18s ease; }
.toast.ok { border-left-color: var(--ok); } .toast.err { border-left-color: var(--err); }


/* professional restraint: flatter, quieter, tighter */
body { font-size: var(--fs-ui); letter-spacing: .1px; }
.hud button { border-radius: 3px; padding: 2px 7px; opacity: .85; }
.hud button:hover, .hud button.on { opacity: 1; }
.composer .send { background: var(--hull-4); color: var(--ink); border: 1px solid var(--rule-strong); }
.composer .send:hover { border-color: var(--accent); }
.run-pill, .chip { letter-spacing: .3px; }
.frame { background: var(--hull-1); }

/* ── demo polish (2026-09-15) ───────────────────────────────────────────── */
#laneWrap { display: flex; align-items: center; gap: 6px; padding: 3px 9px; }
#laneWrap select { background: none; border: none; color: var(--ink-2); font-size: var(--fs-meta);
  padding: 0 2px; cursor: pointer; }
#laneDot { width: 7px; height: 7px; border-radius: 50%; background: var(--ink-4); flex: none; }
.welcome { margin: 18px 16px; padding: 18px 18px 16px; border: 1px solid var(--rule);
  border-radius: 12px; background: var(--hull-2); max-width: 560px; }
.welcome .w-hi { font-size: var(--fs-ui); line-height: 1.55; color: var(--ink-2); }
.welcome .w-ex { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 13px; }
.welcome .w-ex button { font-size: var(--fs-meta); padding: 6px 11px; border-radius: 8px; }
.welcome .w-hint { font-size: var(--fs-meta); color: var(--ink-4); margin-top: 12px; }

/* spec readout lives with the geometry, bottom-left of the 3D pane */
#spec { position: absolute; left: 12px; bottom: 10px; font-size: var(--fs-meta); color: var(--ink-4);
  pointer-events: none; background: color-mix(in srgb, var(--hull-1) 82%, transparent);
  padding: 3px 8px; border-radius: 6px; }
#laneWrap { gap: 5px; }
/* one calm 3D toolbar: grouped chips + separators, icon-sized inspect tools */
.hud { align-items: center; }
.hud-grp { display: flex; gap: 4px; align-items: center; }
.hud-sep { width: 1px; height: 16px; background: var(--rule-strong); margin: 0 5px; opacity: .6; }
.hud button { padding: 3px 7px; }


/* aspect-edit strip above the composer (only when a part is bound) */
.edit-strip { display: flex; flex-wrap: wrap; gap: 5px; align-items: center;
  padding: 6px 10px 2px; border-top: 1px solid var(--rule); background: var(--hull-1); }
.edit-strip .chip { font-size: var(--fs-meta); padding: 2px 8px; }

/* DECIDED FOR YOU — autonomous choices, made visible and overridable */
.agroup { border: 1px solid color-mix(in srgb, var(--warn) 47%, transparent); background: color-mix(in srgb, var(--warn) 5%, transparent);
  border-radius: 0 8px 8px 0; background: color-mix(in srgb, var(--warn) 6%, transparent); margin: 8px 0; padding: 9px 11px; }
.agroup-h { display: flex; align-items: center; gap: 8px; }
.agroup-h .at { font-size: var(--fs-meta); font-weight: 700; letter-spacing: .09em; color: var(--warn); }
.arow { display: flex; align-items: baseline; gap: 8px; padding: 4px 0; border-top: 1px dashed color-mix(in srgb, var(--warn) 20%, transparent); }
.arow .ak { font-size: var(--fs-meta); color: var(--ink-2); min-width: 118px; }
.arow .av { font-family: var(--mono); font-size: var(--fs-meta); font-weight: 650; color: var(--ink); flex: 1; }
.arow .as { font-size: var(--fs-meta); color: var(--ink-4); }
.arow .achip { font-size: var(--fs-meta); padding: 1px 7px; border-radius: 7px; background: none;
  border: 1px solid color-mix(in srgb, var(--warn) 53%, transparent); color: var(--warn); cursor: pointer; }
.arow .achip:hover { background: color-mix(in srgb, var(--warn) 13%, transparent); }

/* live-work indicator (ZCode-style "still working" row) */
.workrow {
  display: flex; align-items: center; gap: 7px;
  padding: 6px 10px; margin: 4px 0;
  font-size: var(--fs-meta); color: var(--accent);
  animation: workpulse 1.6s ease-in-out infinite;
}
.workrow .wspin { display: inline-block; animation: workspin 1.1s linear infinite; }
.workrow .wsec { color: var(--ink-3); }
.workrow { flex-wrap: wrap; }
.workrow .wexp { flex-basis: 100%; color: var(--ink-3); font-size: var(--fs-meta); padding-left: 20px; }
@keyframes workpulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.45; } }
@keyframes workspin { to { transform: rotate(360deg); } }

/* Harness-style collapsible tool + thought cards (2026-09-20) */
.tcard { border: 1px solid var(--rule); background: var(--hull-1);
  border-radius: 0 6px 6px 0; margin: 4px 0; font-size: var(--fs-meta); }
.tcard summary { cursor: pointer; list-style: none; display: flex; gap: 7px; align-items: center;
  padding: 5px 10px; color: var(--ink-2); }
.tcard summary::-webkit-details-marker { display: none; }
.tcard .tico { color: var(--accent); font-family: var(--mono); }
.tcard .tname { font-family: var(--mono); color: var(--ink-1); }
.tcard .targs { color: var(--ink-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.tcard .tst { margin-left: auto; color: var(--ok); }
.tcard .tbody { margin: 0; padding: 6px 10px 8px; border-top: 1px solid var(--rule); white-space: pre-wrap;
  font-family: var(--mono); font-size: var(--fs-meta); color: var(--ink-2); max-height: 220px; overflow: auto; }
.tcard.cap { border-left-color: var(--ink-4); }
.frame.q { border-left-color: var(--warn); }
.frame.q .fh .ico { color: var(--warn); }

/* ── harness chat (2026-09-28): status pills, route line, follow-ups,
   error card, screen toggle — tokens only ─────────────────────────────── */
:root { --ink-1: var(--ink); }
.pill.err { color: var(--err); border-color: var(--err); }
.pill.warn { color: var(--warn); border-color: var(--warn); }
.route-line { font-size: var(--fs-meta); color: var(--ink-3); padding: 0 2px; }
.fup { display: flex; flex-wrap: wrap; gap: 6px; margin: 6px 0 2px; }
.fup button { font-size: var(--fs-meta); padding: 4px 10px; border-radius: 6px; }
.fup button:hover { border-color: var(--accent); color: var(--accent); }
.frame .err-what { font-weight: 600; }
.frame .err-next { color: var(--ink-2); margin-top: 3px; }
.frame .err-raw { margin-top: 6px; }
.frame .err-raw summary { cursor: pointer; color: var(--ink-3); font-size: var(--fs-meta); }
.frame .err-raw pre { font-family: var(--mono); font-size: var(--fs-meta); white-space: pre-wrap;
  max-height: 200px; overflow: auto; color: var(--ink-2); margin-top: 4px; }
.frame .dl-btn { display: inline-block; margin: 2px 0; padding: 4px 10px; border: 1px solid var(--accent);
  border-radius: 6px; color: var(--accent); }
.tcard[open] .targs { visibility: hidden; }
.screen-opt { display: flex; align-items: center; gap: 6px; padding: 0 12px 9px; font-size: var(--fs-meta);
  color: var(--ink-2); cursor: pointer; }
.screen-opt input { width: 14px; height: 14px; }

/* ══ Structure (docs/UX-PROPOSAL.md, approved 2026-09-28) ═══════════════════
   Labelled destinations, part header, Drawings, hover previews, phone layout.
   Tokens only; contrast: --ink-3 / --ink-4 raised to >= 4.5:1 on panels. */
:root { --sp1: 4px; --sp2: 8px; --sp3: 12px; --sp4: 16px; --sp5: 24px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
[role="button"] { cursor: pointer; }
kbd { font-family: var(--mono); font-size: var(--fs-meta); color: var(--ink-3); border: 1px solid var(--rule-strong);
  border-radius: 4px; padding: 0 4px; margin-left: 4px; }
.muted { color: var(--ink-3); }

/* top bar */
#crumb { display: flex; align-items: center; gap: 6px; color: var(--ink-3); font-size: var(--fs-ui); min-width: 0;
  overflow: hidden; white-space: nowrap; }
#crumb b { color: var(--ink); font-weight: 600; overflow: hidden; text-overflow: ellipsis; }
#crumb .sep { color: var(--ink-4); }
.top-btn { background: var(--hull-2); border: 1px solid var(--rule); border-radius: 6px; padding: 4px 10px;
  font-size: var(--fs-meta); color: var(--ink); white-space: nowrap; }
.top-btn.wide { width: 100%; text-align: left; margin-bottom: 6px; }
#menuBtn { display: none; }
.status-chip { display: flex; align-items: center; gap: 6px; font-size: var(--fs-meta); color: var(--ink-2); white-space: nowrap; }
#laneDot { width: 8px; height: 8px; border-radius: 50%; background: var(--ink-4); }
.popover { position: absolute; z-index: 90; background: var(--hull-1); border: 1px solid var(--rule-strong);
  border-radius: 10px; padding: var(--sp3); box-shadow: var(--shadow); }
#settings { right: 10px; top: 48px; width: 270px; }
.pop-h { font-weight: 650; font-size: var(--fs-ui); margin-bottom: 8px; }
.pop-h.sub { font-size: var(--fs-meta); color: var(--ink-3); margin: 10px 0 4px; }
.pop-row { display: flex; gap: 8px; align-items: center; font-size: var(--fs-meta); padding: 3px 0; }
.pop-row[hidden] { display: none; }   /* display:flex beat the hidden attribute: the developer row showed, focusable (ui-max P3-5) */


/* Design = chat + part; other destinations use the whole workspace */
body:not([data-dest="design"]) #chat, body:not([data-dest="design"]) #chatSplit,
body:not([data-dest="design"]) #partHead, body:not([data-dest="design"]) #wstabs { display: none; }
/* the agent opened a page for you mid-conversation: keep the chat beside it */
@media (min-width: 900px) {
  body[data-chat-pinned]:not([data-dest="design"]) #chat { display: flex; }
  body[data-chat-pinned]:not([data-dest="design"]) #chatSplit { display: block; }
}
#partHead { display: flex; align-items: center; gap: 10px; padding: 8px 14px; background: var(--hull-1);
  border-bottom: 1px solid var(--rule); min-height: 46px; flex-wrap: wrap; }
.ph-name { font-size: var(--fs-title); font-weight: 650; }
.ph-meta { font-size: var(--fs-meta); color: var(--ink-3); }
.ph-empty { font-size: var(--fs-ui); color: var(--ink-3); }
#partHead .spacer { flex: 1; }
/* .badge and its tones come from shared/components.css (one status language, 2026-10-11): Design no longer redefines the size
   or the colours; the Design pages draw their states with ui.js statusBadge() (shared/status.js). `.badge.fail` and `.badge.none` are
   gone (nothing draws them: wssummary.js's "Studio drawing" label is .badge.dim). */
button.badge { cursor: pointer; }
.dl-menu { position: relative; }
.dl-menu summary { list-style: none; cursor: pointer; }
.dl-menu summary::-webkit-details-marker { display: none; }
.dl-menu .popover { right: 0; top: 32px; min-width: 210px; display: flex; flex-direction: column; gap: 2px; padding: 6px; }
.dl-menu .popover a { padding: 6px 10px; border-radius: 6px; color: var(--ink); font-size: var(--fs-ui); }
.dl-menu .popover a:hover { background: var(--hull-3); }
.dl-warn { font-size: var(--fs-meta); color: var(--err); padding: 4px 8px 6px; border-bottom: 1px solid var(--rule); margin-bottom: 2px; }
#wstabs { background: var(--hull-1); }
.wpane.scroll { flex-direction: column; overflow-y: auto; }
#p-library #lib { width: 100% !important; max-width: 760px; border: none; background: none; }

/* pages (Projects, Drawings, …) */
.dwg-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: var(--s4, 16px); }
.dwg-card { background: var(--hull-1); border: 1px solid var(--rule); border-radius: 10px; overflow: hidden;
  cursor: pointer; display: flex; flex-direction: column; min-height: 250px; }
.dwg-card:hover { border-color: var(--accent); }
.dwg-card img { width: 100%; height: 170px; object-fit: contain; background: #fff; border-bottom: 1px solid var(--rule); }
html[data-theme="dark"] .dwg-card img { filter: brightness(.82); }   /* RC22.7 review P3-15: a soft paper, not pure white on navy */
.dwg-thumb { height: 170px; border-bottom: 1px solid var(--rule); }
.dwg-thumb img { border-bottom: none; }
.dwg-thumb:has(.dwg-missing) { animation: none; background: none; }
.dwg-more[hidden] { display: none; }
.dwg-thumb img.dwg-wait { opacity: 0; }
.dwg-more { display: flex; justify-content: center; margin-top: var(--s4, 16px); }
.dwg-missing { height: 170px; display: flex; align-items: center; justify-content: center; color: var(--ink-3);
  font-size: var(--fs-meta); background: var(--hull-2); }
.dwg-body { padding: 8px 10px 10px; display: flex; flex-direction: column; gap: 2px; }
.dwg-name { font-weight: 650; font-size: var(--fs-ui); }
.dwg-meta { font-size: var(--fs-meta); color: var(--ink-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dwg-acts { display: flex; gap: 6px; margin-top: 6px; align-items: center; }
.dwg-acts button, .dwg-acts a { font-size: var(--fs-meta); padding: 3px 10px; border: 1px solid var(--rule); border-radius: 6px;
  background: var(--hull-2); color: var(--accent); }
.skeleton { background: linear-gradient(90deg, var(--hull-2), var(--hull-3), var(--hull-2)); background-size: 200% 100%;
  animation: skel 1.2s linear infinite; border-color: transparent; }
@keyframes skel { to { background-position: -200% 0; } }
.empty, .err-inline { padding: 24px 16px; color: var(--ink-3); font-size: var(--fs-ui); grid-column: 1 / -1; }
.err-inline { color: var(--err); display: flex; gap: 10px; align-items: center; }
.proj-card { background: var(--hull-1); border: 1px solid var(--rule); border-radius: 10px; overflow: hidden;
  cursor: pointer; position: relative; }
.proj-card:hover { border-color: var(--accent); }
.card-btn { font-size: var(--fs-meta); padding: 1px 8px; border-radius: 8px; border: 1px solid var(--accent); color: var(--accent);
  background: transparent; white-space: nowrap; }

/* hover preview (rail rows, project cards, drawing cards) */
.part-pop { position: fixed; z-index: 150; pointer-events: none; width: 420px; background: var(--hull-1); border: 1px solid var(--rule-strong);
  border-radius: 12px; box-shadow: var(--shadow); padding: 10px; pointer-events: none; }
.part-pop .pp-head { display: flex; gap: 8px; align-items: baseline; margin-bottom: 6px; font-size: var(--fs-ui); }
.part-pop .pp-head .mono { font-size: var(--fs-meta); }
.part-pop img { width: 100%; height: 260px; object-fit: contain; background: #fff; border-radius: 6px; }
.part-pop .pp-foot { margin-top: 6px; font-size: var(--fs-meta); display: flex; gap: 6px; align-items: center; }

/* Engineering: checks */
.chk-sum { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-weight: 600; font-size: var(--fs-ui); margin-bottom: 8px; }      /* a status chip + one sentence */
.chk-tbl { width: 100%; border-collapse: collapse; font-size: var(--fs-meta); }
.chk-tbl th { text-align: left; font-size: var(--fs-meta); color: var(--ink-3); font-weight: 600; padding: 4px 6px;
  border-bottom: 1px solid var(--rule); }
.chk-tbl td { padding: 6px; border-bottom: 1px solid var(--rule); font-family: var(--mono); font-size: var(--fs-meta); }
.chk-tbl td:first-child { font-family: var(--sans); font-weight: 600; }
.chk-tbl tr.chk-note td { font-family: var(--sans); font-size: var(--fs-meta); color: var(--ink-3); padding-top: 0; }
.chk-basis { font-size: var(--fs-meta); color: var(--ink-3); margin-top: 6px; }
.hint-line { font-size: var(--fs-meta); color: var(--ink-4); }
.welcome .w-more { background: none; border: 1px dashed var(--rule-strong); color: var(--accent); }
.fb pre, .tbody { overflow-wrap: anywhere; }

/* phones and narrow windows: one column, rail as a drawer. The sections are the shared bottom tab bar
   (.sh-tabbar, shared/header.css, under 760 px); Design's own panes are the Chat | Part | Library strip. */
#mseg { display: none; }
@media (max-width: 899px) {
  #menuBtn { display: inline-block; }
  #crumb, #laneWrap, #btnSearch kbd { display: none; }
  #cols { position: relative; }
  #rail { position: fixed; top: 48px; bottom: 0; left: 0; width: 82vw !important; max-width: 320px; z-index: 120;
    transform: translateX(-102%); transition: transform .18s ease; box-shadow: var(--shadow); }
  body.rail-open #rail { transform: none; }
  .split { display: none !important; }
  #chat { width: 100% !important; border-right: none; }
  #work { width: 100%; }
  body[data-dest="design"][data-m="chat"] #work { display: none; }
  body[data-dest="design"][data-m="part"] #chat,
  body[data-dest="design"]:not([data-m]) #chat { display: none; }
  /* same idiom as .proj-tabs: flat tabs with an accent underline, 44 px to tap */
  body[data-dest="design"] #mseg, body[data-dest="projects"] #mseg { display: flex; flex: none; border-bottom: 1px solid var(--rule); background: var(--hull-1); }
  #mseg button { flex: 1; min-height: 44px; padding: 0 8px; background: none; border: 0; border-bottom: 2px solid transparent; border-radius: 0;
    font-size: var(--fs-ui); font-weight: 550; color: var(--ink-3); }
  #mseg button:hover { color: var(--ink); background: none; }
  #mseg button.on { color: var(--ink); border-bottom-color: var(--accent); font-weight: 650; }
  #mseg button:focus-visible { outline-offset: -3px; }
  .hud button { padding: 4px 8px; }
  .dwg-grid { grid-template-columns: 1fr; }
  .page-head input { width: 100%; }
  #partHead { padding: 8px 10px; }
  .composer textarea { font-size: var(--fs-touch); }
  #toasts { bottom: 64px; left: 10px; right: 10px; }
}

/* sign-in (hosted engine: no desktop local session) */
.signin { position: fixed; inset: 0; z-index: 200; display: flex; align-items: center; justify-content: center;
  background: var(--hull-0); padding: 16px; }
.signin-card { width: 100%; max-width: 360px; background: var(--hull-1); border: 1px solid var(--rule);
  border-radius: 12px; padding: 28px 24px; display: flex; flex-direction: column; gap: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, .18); }
.signin-card h1 { margin: 0; font-size: var(--fs-h1); font-weight: 700; }
.signin-card p { margin: 0 0 6px; font-size: var(--fs-ui); }
.signin-row { display: flex; flex-direction: column; gap: 5px; font-size: var(--fs-meta); color: var(--ink-2); }
.signin-row input { font: inherit; font-size: var(--fs-body); padding: 9px 10px; border-radius: 7px;
  border: 1px solid var(--rule-strong); background: var(--hull-0); color: var(--ink); }
.signin-row input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.signin-err { min-height: 16px; font-size: var(--fs-meta); color: var(--err); }
.signin-back { text-align: center; font-size: var(--fs-ui); color: var(--ink-2); text-decoration: none; }
.signin-back:hover { color: var(--accent); text-decoration: underline; }
.signin-go { padding: 10px; border: none; border-radius: 7px; background: var(--accent-deep); color: #fff;
  font-weight: 650; font-size: var(--fs-ui); cursor: pointer; }
.signin-go:hover { background: var(--accent-hover); }
.signin-go:disabled { opacity: .6; cursor: default; }

/* ── calculators (js/calcs/kit.js + index.js) ──
   One calculator at a time: index | card. Card = header · inputs | answer →
   figure → basis. Sized by the column (container queries), not the window,
   because the chat can be pinned beside the page. */
.ck-page { display: flex; min-height: 0; height: 100%; }
.ck-nav { width: 232px; flex: none; border-right: 1px solid var(--rule); padding: 12px 10px; overflow: auto; background: var(--hull-1);
  display: flex; flex-direction: column; gap: 8px; }
.ck-find { width: 100%; font: inherit; font-size: var(--fs-ui); padding: 6px 9px; border-radius: 7px; border: 1px solid var(--rule-strong); background: var(--hull-0); }
.ck-list { display: flex; flex-direction: column; gap: 1px; }
.ck-list h2 { font-size: var(--fs-meta); letter-spacing: var(--track-caps); text-transform: uppercase; color: var(--ink-4); font-weight: 650; margin: 12px 8px 4px; }
.ck-list h2:first-child { margin-top: 2px; }
.ck-list button { display: block; width: 100%; text-align: left; background: none; border: none; color: var(--ink-2);
  font-size: var(--fs-ui); line-height: 1.3; padding: 6px 8px; border-radius: 6px; cursor: pointer; }
.ck-list button:hover { background: var(--wash); color: var(--ink); }
.ck-list button.on { background: var(--wash); color: var(--accent); font-weight: 600; box-shadow: inset 2px 0 0 var(--accent); }
.ck-list button[hidden], .ck-list h2[hidden] { display: none; }
.ck-mpick { display: none; }
.ck-main { flex: 1; min-width: 0; overflow: auto; padding: 18px 22px 48px; display: flex; flex-direction: column; gap: 14px;
  container-type: inline-size; }
.ck-stage, .ck-group { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.ck-group[hidden], .ck-card[hidden] { display: none; }
.ck-skel { display: flex; flex-direction: column; gap: 12px; }
.ck-list .skeleton { margin: 8px 12px; border-radius: 4px; }
.ck-intro { font-size: var(--fs-ui); color: var(--ink-3); margin: 0; }

.ck-card { background: var(--hull-1); border: 1px solid var(--rule); border-radius: 12px; min-width: 0; }
.ck-head { display: flex; align-items: flex-start; gap: 12px; padding: 16px 20px 10px; }
.ck-titles { flex: 1; min-width: 0; }
.ck-head h3 { margin: 0; font-size: var(--fs-title); font-weight: 650; letter-spacing: -.005em; }
.ck-blurb { margin: 4px 0 0; font-size: var(--fs-ui); color: var(--ink-3); line-height: 1.45; max-width: 78ch; }
.ck-reset { flex: none; color: var(--accent); }
.ck-reset[hidden] { display: none; }
.ck-body { display: grid; grid-template-columns: minmax(280px, 360px) minmax(0, 1fr); gap: 22px; padding: 6px 20px 18px; align-items: start; }

/* inputs */
.ck-form { display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.ck-set { border: none; margin: 0; padding: 0; min-width: 0; }
.ck-set legend { font-size: var(--fs-meta); letter-spacing: var(--track-caps); text-transform: uppercase; color: var(--ink-3); font-weight: 650;
  padding: 0 0 6px; width: 100%; border-bottom: 1px solid var(--rule); margin-bottom: 8px; }
.ck-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 12px; }
.ck-field { display: flex; flex-direction: column; gap: 4px; font-size: var(--fs-meta); color: var(--ink-2); min-width: 0; }
.ck-field.wide { grid-column: 1 / -1; }
.ck-fhead { display: flex; align-items: baseline; gap: 6px; min-height: 17px; }
.ck-flabel { flex: 1; min-width: 0; line-height: 1.3; cursor: pointer; }
.ck-unit { margin-left: 5px; color: var(--ink-4); font-family: var(--mono); font-size: var(--fs-meta); }
.ck-def { flex: none; border: none; background: none; padding: 0 2px; font-size: var(--fs-meta); line-height: 1.4; border-radius: 4px;
  letter-spacing: .02em; }
.ck-def[hidden] { display: none; }
.ck-field.edited .ck-def { color: var(--accent); cursor: pointer; text-decoration: underline; text-underline-offset: 2px; }
.ck-field.edited .ck-def:hover { background: var(--wash); }
.ck-field input:not([type=checkbox]), .ck-field select { font: inherit; font-size: var(--fs-ui); padding: 6px 8px; border-radius: 6px; width: 100%;
  border: 1px solid var(--rule-strong); background: var(--hull-0); color: var(--ink); min-width: 0; height: 32px; }
.ck-field input[type=number], .ck-field input[list] { font-family: var(--mono); font-size: var(--fs-ui); }
.ck-field textarea { font: inherit; font-family: var(--mono); font-size: var(--fs-ui); line-height: 1.45; padding: 6px 8px; border-radius: 6px; width: 100%;
  border: 1px solid var(--rule-strong); background: var(--hull-0); color: var(--ink); min-width: 0; min-height: 96px; resize: vertical; white-space: pre; overflow: auto; }
.ck-field.edited textarea { border-color: color-mix(in srgb, var(--accent) 55%, var(--rule-strong)); }
.ck-field.edited input:not([type=checkbox]), .ck-field.edited select { border-color: color-mix(in srgb, var(--accent) 55%, var(--rule-strong)); }
/* RC19 UX C-M2: a cleared blank is not "changed by you" */
.ck-field.edited.blank input, .ck-field.edited.blank select, .ck-field.edited.blank textarea { border-color: var(--rule-strong); }
.ck-check { display: flex; align-items: center; gap: 8px; flex: 1; min-width: 0; }
.ck-field input[type=checkbox] { width: 16px; height: 16px; flex: none; accent-color: var(--accent-deep); }
.ck-pickrow { display: flex; gap: 6px; min-width: 0; }
.ck-pickrow input { flex: 1; }
.ck-browse { flex: none; height: 32px; }
.ck-sum { font-size: var(--fs-meta); color: var(--ink-3); font-family: var(--mono); line-height: 1.35; }
.ck-sum.warn { color: var(--warn); font-family: var(--sans); }
.ck-sum:empty { display: none; }
.ck-hint { font-size: var(--fs-meta); color: var(--ink-4); line-height: 1.35; }
/* a select on the card's example list opens blank: the example's value under it while it is blank (RC19.1) */
.ck-exhint { font-size: var(--fs-meta); color: var(--ink-3); line-height: 1.35; }
.ck-exhint[hidden] { display: none; }
.ck-more { border: 1px solid var(--rule); border-radius: 8px; background: var(--hull-2); }
.ck-more > summary, .ck-sec > summary { cursor: pointer; list-style: none; display: flex; align-items: center; gap: 8px;
  font-size: var(--fs-meta); font-weight: 600; color: var(--ink-2); padding: 8px 10px; user-select: none; }
.ck-more > summary::-webkit-details-marker, .ck-sec > summary::-webkit-details-marker { display: none; }
.ck-more > summary::before, .ck-sec > summary::before { content: "\25b8"; font-size: 10px; color: var(--ink-4); transition: transform .12s; }
.ck-more[open] > summary::before, .ck-sec[open] > summary::before { transform: rotate(90deg); }
.ck-more.edited > summary .ck-sec-n { color: var(--accent); border-color: var(--accent); }
.ck-more-b { display: flex; flex-direction: column; gap: 12px; padding: 4px 10px 12px; }
.ck-sec-n { font-size: var(--fs-meta); font-weight: 600; color: var(--ink-3); border: 1px solid var(--rule-strong); border-radius: 999px; padding: 0 7px; line-height: 16px; }
.ck-gobar { display: flex; align-items: center; gap: 10px; padding-top: 12px; border-top: 1px solid var(--rule); }
.ck-go { padding: 8px 22px; border-radius: 7px; border: none; background: var(--accent-deep); color: #fff; font-weight: 650; font-size: var(--fs-ui); cursor: pointer; }
.ck-go:hover { background: var(--accent-hover); }
.ck-go:disabled { opacity: .6; cursor: progress; }
.ck-gostate { font-size: var(--fs-meta); color: var(--ink-3); }
.ck-setnote { font-size: var(--fs-meta); color: var(--ink-3); margin: -2px 0 8px; line-height: 1.4; }
/* a worked example (no-defaults sweep 2026-10-13): the bar, the example fields, the stamp on a result */
.ck-example-bar { display: flex; align-items: center; gap: 12px; margin: 0 0 12px; padding: 9px 12px; border-radius: 8px;
  border: 1px solid color-mix(in srgb, var(--warn) 55%, transparent); background: color-mix(in srgb, var(--warn) 9%, transparent); }
.ck-example-bar[hidden] { display: none; }
.ck-example-t { flex: 1; display: flex; flex-direction: column; gap: 2px; font-size: var(--fs-meta); color: var(--ink-2); line-height: 1.4; }
.ck-example-t strong { font-size: var(--fs-ui); color: var(--warn); }
.ck-example-clear { flex: none; }
.ck-example-clear[hidden] { display: none; }
.ck-field.ck-example input, .ck-field.ck-example select, .ck-field.ck-example textarea { border-style: dashed; border-color: var(--warn); }
.ck-example-left { flex-basis: 100%; font-size: var(--fs-meta); color: var(--ink-3); }
.ck-example-left:empty { display: none; }
.ck-example-bar { flex-wrap: wrap; }
.ck-more.ck-example-more > summary { color: var(--warn); }
.ck-svg text.ck-exstamp-svg, svg text.ck-exstamp-svg { stroke: none; }
svg text.ck-exstamp-svg { fill: var(--err); fill-opacity: .5; }   /* RC19 UX C-L4: readable on the dark theme too */
.ck-exstamp { font-size: var(--fs-meta); font-weight: 750; letter-spacing: var(--track-caps); text-transform: uppercase; color: var(--err);
  border: 2px solid var(--err); border-radius: 6px; padding: 5px 10px; margin-bottom: 8px; text-align: center; }
.ck-card[data-stale] .ck-lead::before { content: "Inputs changed — Calculate again for the engine's values"; font-size: var(--fs-meta);
  font-weight: 600; color: var(--warn); }
.ck-card[data-stale] .ck-lead > * { opacity: .45; }
/* RC19 UX C-H3 (Alan's decision): an answer on example values is not a verdict: no green or red, the pill says
   "Example result, not a verdict" and the tiles carry a faint hatch, so a cropped shot is still marked */
.ck-card[data-example] .ck-verdict.ok, .ck-card[data-example] .ck-verdict.fail { background: var(--wash); color: var(--ink-2); }
.ck-card[data-example] .ck-headline .ck-hl, .ck-card[data-example] .ck-headline .ck-hl:first-child {
  background: repeating-linear-gradient(-45deg, transparent 0 12px, color-mix(in srgb, var(--err) 7%, transparent) 12px 14px), var(--hull-2); }
.ck-card[data-example] .ck-meter-fill { background: var(--ink-3); }
/* RC19 UX C-H4: "Solaris practice: 5" in the sans face, so the number is not cut off in a mono half-width field */
.ck-field input::placeholder { font-family: var(--sans); }
.ck-exv { display: block; font-size: var(--fs-meta); font-weight: 750; letter-spacing: var(--track-caps); text-transform: uppercase; color: var(--ink-2); margin-bottom: 2px; }

/* results: answer → figure → basis */
.ck-res { display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.ck-lead { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.ck-lead:empty { display: none; }
.ck-out { display: flex; flex-direction: column; gap: 12px; min-width: 0; overflow-x: auto; }
.ck-out:empty { display: none; }
.ck-card.busy .ck-lead, .ck-card.busy .ck-out { opacity: .5; transition: opacity .15s; }
.ck-card[data-stale] .ck-out { opacity: .45; }
.ck-fig:empty { display: none; }
.ck-headline { display: flex; flex-wrap: wrap; gap: 1px; border-radius: 10px; overflow: hidden;
  border: 1px solid var(--rule-strong); background: var(--rule); }
.ck-hl { flex: 1 1 150px; background: var(--hull-2); padding: 12px 14px 11px; min-width: 0; }   /* rows fill: no blank cells */
.ck-headline.ok .ck-hl:first-child { background: color-mix(in srgb, var(--ok) 10%, var(--hull-2)); }
.ck-headline.fail .ck-hl:first-child { background: color-mix(in srgb, var(--err) 10%, var(--hull-2)); }
.ck-headline.warn .ck-hl:first-child { background: color-mix(in srgb, var(--warn) 10%, var(--hull-2)); }
.ck-headline.info .ck-hl:first-child { background: var(--wash); }
.ck-hl-v { display: flex; align-items: baseline; gap: 5px; flex-wrap: wrap; font-size: var(--fs-fig); font-weight: 650; line-height: 1.1; color: var(--ink);
  letter-spacing: -.01em; overflow-wrap: anywhere; }
.ck-hl-v .mono { font-family: var(--mono); font-weight: 600; }
/* "Supplier:CODE" tile: smaller, breaks only after the colon, the code stays whole */
.ck-hl-v .ck-hl-code { font-size: var(--fs-h2); overflow-wrap: anywhere; word-break: normal; }
.ck-hl-nw { white-space: nowrap; }
.ck-pg { display: block; font-family: var(--sans); font-size: var(--fs-meta); margin-top: 2px; white-space: nowrap; }
.ck-hl-u { font-size: var(--fs-ui); font-weight: 500; color: var(--ink-3); }
.ck-hl-l { font-size: var(--fs-meta); color: var(--ink-2); margin-top: 5px; font-weight: 600; }
.ck-hl-s { font-size: var(--fs-meta); color: var(--ink-3); margin-top: 2px; line-height: 1.35; }
.ck-kv { border-collapse: collapse; width: 100%; font-size: var(--fs-ui); }
.ck-kv th { text-align: left; font-weight: 500; color: var(--ink-3); padding: 5px 14px 5px 0; width: 40%; vertical-align: top;
  border-bottom: 1px solid var(--rule); }
.ck-kv td { text-align: left; padding: 5px 0; border-bottom: 1px solid var(--rule); overflow-wrap: anywhere; }
.ck-kv tr:last-child > * { border-bottom: none; }
/* a figure column (the BOM roll-up's ρ, unit, qty, total): one word, never broken across lines */
.ck-kv th.num, .ck-kv td.num { text-align: right; white-space: nowrap; overflow-wrap: normal; word-break: keep-all; font-variant-numeric: tabular-nums; padding-left: 10px; }
.ck-kv th.num { width: auto; }
.ck-tbl { border-collapse: collapse; width: 100%; font-size: var(--fs-ui); }
.ck-tbl th { text-align: left; font-weight: 600; font-size: var(--fs-meta); color: var(--ink-3); padding: 6px 10px 6px 0; border-bottom: 1px solid var(--rule-strong); white-space: nowrap; }
.ck-tbl td { text-align: left; padding: 6px 10px 6px 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
.ck-tbl .num { text-align: right; font-family: var(--mono); white-space: nowrap; }
.ck-tbl th.num { font-family: var(--sans); }
.ck-tbl .mono { font-family: var(--mono); }
.ck-tbl .dim { color: var(--ink-3); }
.ck-tbl-wrap { overflow-x: auto; }
/* RC22.6 UX P1-4: the box takes the keyboard (kit.tblWrap: a named region, arrow keys scroll it) with the kit's focus
   ring, drawn inside its edge; the scroll cue's edge fade steps aside while it has focus, so the ring shows whole */
.ck-tbl-wrap.scroll-cue:focus-visible:not(.pin1) { outline: 2px solid var(--accent); outline-offset: -2px;
  -webkit-mask-image: none; mask-image: none; }
/* multi-column tables scroll sideways instead of crushing to a letter per line */
.ck-tbl-wrap > table, .ck-sec-b > table:not(.ck-kv), .ck-out > table:not(.ck-kv) { min-width: 520px; }
.ck-out > table:not(.ck-kv):not(.ck-tbl) td, .ck-out > table:not(.ck-kv):not(.ck-tbl) th,
.ck-sec-b > table:not(.ck-kv):not(.ck-tbl) td, .ck-sec-b > table:not(.ck-kv):not(.ck-tbl) th { padding: 5px 10px 5px 0; }
.ck-verdict { display: inline-block; align-self: flex-start; font-weight: 700; font-size: var(--fs-ui); padding: 5px 11px; border-radius: 7px; line-height: 1.4; }
.ck-verdict.ok { background: color-mix(in srgb, var(--ok) 15%, transparent); color: var(--ok); }
.ck-verdict.fail { background: color-mix(in srgb, var(--err) 15%, transparent); color: var(--err); }
.ck-verdict.info { background: var(--wash); color: var(--ink-2); font-weight: 600; }
/* RC19 UX C-H1: the engine asks for blank inputs — amber, not the red failure; the asked fields are marked */
.ck-verdict.info.need { background: color-mix(in srgb, var(--warn) 14%, transparent); color: var(--warn); font-weight: 650; }
.ck-field.ck-need input, .ck-field.ck-need select, .ck-field.ck-need textarea { border-color: var(--warn); box-shadow: 0 0 0 1px var(--warn); }
/* RC19 UX R-M5: the asked field says "needed" beside its label, so the cue is not the amber border alone */
.ck-opt.ck-needtag { color: var(--warn); font-weight: 650; }
.ck-meter-h { display: flex; justify-content: space-between; font-size: var(--fs-meta); color: var(--ink-3); margin-bottom: 4px; }
.ck-meter-bar { position: relative; height: 8px; border-radius: 4px; background: var(--hull-3); overflow: visible; }
.ck-meter-fill { height: 100%; border-radius: 4px; }
.ck-meter-fill.ok { background: var(--ok); } .ck-meter-fill.warn { background: var(--warn); } .ck-meter-fill.fail { background: var(--err); }
.ck-meter-lim { position: absolute; right: 0; top: -3px; bottom: -3px; width: 2px; background: var(--ink-2); }
.ck-sec { border: 1px solid var(--rule); border-radius: 8px; background: var(--hull-1); min-width: 0; }
.ck-sec > summary { padding: 9px 12px; }
.ck-sec-b { padding: 2px 12px 12px; display: flex; flex-direction: column; gap: 10px; min-width: 0; overflow-x: auto; }
.ck-note { font-size: var(--fs-meta); color: var(--ink-3); line-height: 1.45; }
.ck-note:empty { display: none; }
.ck-note.warn { color: var(--warn); }
/* RC19 UX C-M6: what the engine used for a blank is read, not skimmed: a tint, no side border */
.ck-lead .ck-note.ck-used, .ck-sec-b > .ck-note.ck-used { color: var(--ink); background: color-mix(in srgb, var(--warn) 9%, transparent); border-radius: 6px; padding: 6px 10px; margin: 6px 0; }
.ck-lead .ck-note.warn { color: var(--ink-2); background: color-mix(in srgb, var(--warn) 9%, transparent);
  border: 1px solid color-mix(in srgb, var(--warn) 40%, transparent); border-radius: 6px; padding: 7px 10px; }
.ck-idle { font-size: var(--fs-meta); color: var(--ink-3); padding: 12px 14px; border: 1px dashed var(--rule-strong); border-radius: 10px; }
.ck-src { padding: 9px 20px; border-top: 1px solid var(--rule); font-size: var(--fs-meta); color: var(--ink-4); background: var(--hull-2); border-radius: 0 0 12px 12px; }
.ck-dlrow { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.ck-dl { display: inline-flex; align-items: center; gap: 6px; height: 30px; padding: 0 12px; font: 500 var(--fs-meta)/1 var(--sans); color: var(--ink);
  background: var(--hull-2); border: 1px solid var(--rule-strong); border-radius: 7px; cursor: pointer; text-decoration: none; }
.ck-dl:hover { border-color: var(--accent); color: var(--accent); background: var(--hull-3); }
.ck-dl.primary { background: var(--accent-deep); border-color: var(--accent-deep); color: #fff; font-weight: 600; }
.ck-dl.primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: #fff; }
.ck-use { display: inline-flex; gap: 4px; flex-wrap: nowrap; }
.ck-use .btn { height: 22px; font-size: var(--fs-meta); padding: 0 7px; }
.ck-use.long { flex-wrap: wrap; align-items: center; gap: 6px; }
.ck-use.long .btn { height: 26px; font-size: var(--fs-meta); padding: 0 10px; }

/* pick-list panel */
.ck-pick .modal { width: min(1080px, 96vw); height: min(84vh, 860px); }
.ck-pick-tools { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 10px 14px; border-bottom: 1px solid var(--rule); }
.ck-pick-tools input { flex: 1 1 280px; font: inherit; font-size: var(--fs-ui); padding: 7px 10px; border-radius: 7px; border: 1px solid var(--rule-strong); background: var(--hull-0); }
.ck-pick-chips { display: flex; flex-wrap: wrap; gap: 4px; }
.ck-pick-chip { font-size: var(--fs-meta); padding: 3px 9px; border-radius: 999px; background: var(--hull-2); border: 1px solid var(--rule); color: var(--ink-2); cursor: pointer; }
.ck-pick-chip.on { border-color: var(--accent); color: var(--accent); background: var(--wash); font-weight: 600; }
.ck-pick-n { font-size: var(--fs-meta); color: var(--ink-3); margin-left: auto; }
.ck-pick-body { flex: 1; overflow: auto; padding: 0 14px 14px; }
.ck-pick-tbl thead th { position: sticky; top: 0; background: var(--hull-1); z-index: 1; padding-top: 10px; }
.ck-pick-row { cursor: pointer; }
.ck-pick-row:hover td, .ck-pick-row.hi td { background: var(--wash); }
.ck-pick-row.cur td { box-shadow: inset 0 -1px 0 var(--accent); color: var(--accent); }
.ck-pick-g td { font-size: var(--fs-meta); letter-spacing: var(--track-caps); text-transform: uppercase; color: var(--ink-3); font-weight: 650; padding: 14px 0 4px; border-bottom: 1px solid var(--rule-strong); }
/* worked calculation (2026-09-30): formula = numbers = result, one step per line */
.ck-work { margin: 0; padding-left: 20px; display: flex; flex-direction: column; gap: 8px; }
.ck-work-l { font-weight: 600; font-size: var(--fs-ui); }
.ck-work-f { font-size: var(--fs-meta); overflow-wrap: anywhere; margin-top: 2px; }
/* hose selector results (2026-09-30): compact cards, the picked hose above them */
.ck-hlist-head { font-size: var(--fs-meta); letter-spacing: var(--track-caps); text-transform: uppercase; color: var(--ink-3); font-weight: 650; margin-top: 4px; }
.ck-hlist { display: flex; flex-direction: column; gap: 6px; max-height: 560px; overflow: auto; padding-right: 2px; }
.ck-hrow { border: 1px solid var(--rule); border-radius: 8px; padding: 8px 10px; background: var(--hull-0); min-width: 0; }
.ck-hrow:hover, .ck-hrow:focus-visible { border-color: var(--accent); background: var(--wash); outline: none; }
.ck-hrow.cur { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); background: var(--wash); }
.ck-hrow-top { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px; }
.ck-hrow-key { font-weight: 650; overflow-wrap: anywhere; }
.ck-hrow.cur .ck-hrow-key { color: var(--accent); }
.ck-hrow-sup { font-size: var(--fs-meta); color: var(--ink-3); }
.ck-hrow-top .ck-pg { font-size: var(--fs-meta); margin-left: auto; }
.ck-hrow-desc { font-size: var(--fs-meta); color: var(--ink-2); margin-top: 2px; }
.ck-hrow-nums { font-size: var(--fs-meta); margin-top: 4px; overflow-wrap: anywhere; }
.ck-gap { display: inline-block; font-size: var(--fs-meta); font-weight: 650; color: var(--warn); margin-top: 3px; }
.ck-sel-pick { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
/* selector depth (2026-10-01): a row is the pick plus a compare tick; margins, reel, compare table */
.ck-hrow { display: flex; align-items: flex-start; gap: 10px; }
.ck-hrow:focus-within { border-color: var(--accent); }
.ck-hrow-main { flex: 1 1 auto; min-width: 0; cursor: pointer; border-radius: 5px; }
.ck-hrow-main:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.ck-hrow-cmp { flex: none; display: inline-flex; align-items: center; gap: 6px; min-height: 28px; padding: 2px 4px;
  font-size: var(--fs-meta); color: var(--ink-3); cursor: pointer; border-radius: 5px; }
.ck-hrow-cmp input { width: 16px; height: 16px; accent-color: var(--accent-deep); cursor: pointer; }
.ck-hrow-cmp:hover { color: var(--ink); }
.ck-hrow-mar { font-size: var(--fs-meta); color: var(--ok); margin-top: 3px; }
.ck-hrow-reel { font-size: var(--fs-meta); color: var(--ink-2); margin-top: 3px; overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }
.ck-hrow-reel.none { color: var(--ink-3); }
.ck-sel-crit { display: flex; flex-wrap: wrap; gap: 6px; }
.ck-sel-crit span { font-size: var(--fs-meta); padding: 2px 8px; border: 1px solid var(--rule-strong); border-radius: 999px; color: var(--ink-2); }
.ck-cmpbar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.ck-cmpbar-t { flex: 1 1 220px; min-width: 0; font-size: var(--fs-meta); color: var(--ink-3); overflow-wrap: anywhere; }
.ck-cmp-out:empty { display: none; }
.ck-cmp { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.ck-cmp-x { overflow-x: auto; border: 1px solid var(--rule-strong); border-radius: 10px; background: var(--hull-0); }
.ck-cmp-t { border-collapse: collapse; width: 100%; font-size: var(--fs-ui); }
.ck-cmp-t th, .ck-cmp-t td { padding: 7px 12px; text-align: right; vertical-align: top; border-top: 1px solid var(--rule); }
.ck-cmp-t thead th, .ck-cmp-t thead td { border-top: none; background: var(--hull-2); vertical-align: bottom; }
.ck-cmp-t tbody th, .ck-cmp-corner { text-align: left; font-weight: 500; color: var(--ink-2); white-space: nowrap;
  position: sticky; left: 0; background: var(--hull-0); }
.ck-cmp-t thead .ck-cmp-corner { background: var(--hull-2); font-size: var(--fs-meta); color: var(--ink-3); }
.ck-cmp-t tbody th .ck-unit { margin-left: 6px; }
.ck-cmp-key { font-weight: 650; overflow-wrap: anywhere; min-width: 120px; }
.ck-cmp-sub { font-size: var(--fs-meta); font-weight: 400; color: var(--ink-3); }
.ck-cmp-t td { font-variant-numeric: tabular-nums; }
.ck-cmp-t td.none { color: var(--ink-3); font-family: var(--sans); }
.ck-cmp-t td.best { color: var(--ok); font-weight: 650; background: color-mix(in srgb, var(--ok) 9%, transparent); }
.ck-cmp-best { display: block; font-family: var(--sans); font-size: var(--fs-meta); font-weight: 700; letter-spacing: var(--track-caps); text-transform: uppercase; }
.ck-cmp-mar { display: block; font-family: var(--sans); font-size: var(--fs-meta); font-weight: 400; color: var(--ink-3); }
.ck-cmp-use td { padding-top: 10px; padding-bottom: 10px; }
.ck-cmp-use .ck-hint { text-align: right; margin-top: 4px; }
.ck-cmp-sum { margin: 0; padding-left: 18px; font-size: var(--fs-ui); line-height: 1.5; color: var(--ink-2); }
@media (max-width: 520px) {
  .ck-hrow { flex-direction: column; gap: 4px; }
  .ck-hrow-cmp { min-height: 40px; align-self: flex-start; }
  .ck-cmp-t th, .ck-cmp-t td { padding: 7px 9px; }
}

/* narrower columns (chat pinned, laptop): the figure and answer stack under the inputs */
@container (max-width: 760px) { .ck-body { grid-template-columns: 1fr; } .ck-gobar { position: static; } }
@container (max-width: 420px) { .ck-grid { grid-template-columns: 1fr; } .ck-hl { flex-basis: 130px; } .ck-hl-v { font-size: var(--fs-h1); } }
/* phones: drawings keep a legible scale and pan sideways (Enlarge shows the whole sheet) */
@container (max-width: 600px) { .ck-fig-b { overflow-x: auto; } .ck-fig-b > .ck-svg { min-width: 560px; } }
@media (max-width: 900px) {
  .ck-page { flex-direction: column; }
  .ck-nav { display: none; }
  .ck-mpick { display: block; width: 100%; font: inherit; font-size: var(--fs-body); padding: 8px 10px; border-radius: 8px; height: 40px;
    border: 1px solid var(--rule-strong); background: var(--hull-1); color: var(--ink); }
  .ck-main { padding: 12px 12px 30px; }
  .ck-head { padding: 14px 14px 8px; }
  .ck-body { padding: 6px 14px 14px; }
  .ck-src { padding: 9px 14px; }
  .ck-pick .modal { width: 100vw; height: 100%; max-height: 100vh; border-radius: 0; }
}

/* calculator figures (kit.js svg.*) */
.ck-svg { width: 100%; height: auto; max-height: 300px; color: var(--ink-2); background: var(--hull-0);
  border: 1px solid var(--rule); border-radius: 8px; }
.ck-svg .ck-ink { stroke: currentColor; stroke-width: 1.5; fill: none; }
.ck-svg .ck-solid { stroke: currentColor; stroke-width: 1.5; fill: var(--hull-3); }
.ck-svg .ck-accent { stroke: var(--accent); stroke-width: 2.5; fill: none; }
.ck-svg .ck-accent-fill { fill: color-mix(in srgb, var(--accent) 25%, transparent); stroke: var(--accent); stroke-width: 1.5; }
.ck-svg .ck-ok { stroke: var(--ok); stroke-width: 2.5; fill: none; }
.ck-svg .ck-fail { stroke: var(--err); stroke-width: 2.5; fill: none; }
.ck-svg .ck-ground { stroke: var(--ink-3); stroke-width: 1; stroke-dasharray: 4 3; fill: none; }
.ck-svg .ck-water { fill: color-mix(in srgb, var(--accent) 8%, transparent); stroke: none; }
.ck-svg .ck-force { stroke: var(--err); stroke-width: 2; fill: none; }
.ck-svg .ck-fill-ink { fill: currentColor; }
.ck-svg .ck-label { fill: var(--ink-2); font-size: 11px; font-family: inherit; }
.ck-svg .ck-label-strong { fill: var(--ink); font-size: 12px; font-weight: 650; font-family: inherit; }
.ck-svg .ck-dim line { stroke: var(--ink-3); stroke-width: 1; }
.ck-svg .ck-dim text { fill: var(--ink-3); font-size: 10.5px; font-family: ui-monospace, monospace; }
/* ck-dim / ck-fill used directly on a shape or text (not a dimension group) */
.ck-svg line.ck-dim, .ck-svg path.ck-dim, .ck-svg circle.ck-dim, .ck-svg polyline.ck-dim { stroke: var(--ink-3); stroke-width: 1; fill: none; }
.ck-svg text.ck-dim { fill: var(--ink-3); font-size: 10.5px; font-family: ui-monospace, monospace; }
.ck-svg .ck-fill { fill: var(--hull-2); stroke: currentColor; stroke-width: 1.5; }

/* ── run card (js/runcard.js): basis · show work · output · result ── */
.rc-lane { font-size: var(--fs-meta); color: var(--ink-3); margin-left: auto; margin-right: 8px; white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis; max-width: 45%; }
.rc-cap { font-size: var(--fs-meta); font-weight: 650; letter-spacing: var(--track-caps); text-transform: uppercase; color: var(--ink-3); }
.rc-muted { color: var(--ink-3); font-size: var(--fs-meta); }
.rc-primary { background: var(--accent-deep); color: #fff; border: none; border-radius: 7px; padding: 6px 14px;
  font-weight: 600; font-size: var(--fs-ui); cursor: pointer; }
.rc-primary:hover { background: var(--accent-hover); }
.rc-primary:disabled { opacity: .6; cursor: default; }
.rc-ghost { background: none; border: 1px solid var(--rule-strong); color: var(--ink-2); border-radius: 7px;
  padding: 5px 11px; font-size: var(--fs-meta); cursor: pointer; }
.rc-ghost:hover { border-color: var(--accent); color: var(--accent); }
.msg.user { align-self: flex-end; background: var(--accent-deep); color: #fff; font-size: var(--fs-ui); padding: 7px 11px;
  border-radius: 12px 12px 3px 12px; max-width: 85%; margin: 2px 0 8px; white-space: pre-wrap; }

.rc-basis { border: 1px solid var(--rule); border-radius: 10px; background: var(--hull-1); padding: 10px 12px; margin: 4px 0 8px; }
.rc-basis-h { display: flex; align-items: baseline; gap: 8px; }
.rc-basis-n { font-size: var(--fs-meta); color: var(--accent); }
.rc-basis-hint { font-size: var(--fs-meta); color: var(--ink-3); margin: 3px 0 8px; line-height: 1.4; }
/* minmax(0, 1fr): a long option ("8 x M30 on 450 mm PCD (recommended)")
   used to widen the column past the chat's edge — the select shrinks and
   ellipsises instead, the full text is in its tooltip */
.rc-basis-t { display: grid; grid-template-columns: minmax(90px, 38%) minmax(0, 1fr); }
.rc-vcell { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.rc-ctl { display: inline-flex; gap: 4px; align-items: center; min-width: 0; max-width: 100%; }
.rc-ctl select { width: 100%; min-width: 0; text-overflow: ellipsis; }
.rc-row { display: contents; }
.rc-row > div { padding: 6px 8px 6px 0; border-top: 1px solid var(--rule); font-size: var(--fs-ui); min-width: 0; }
.rc-row .rc-k { color: var(--ink-2); }
.rc-row .rc-v { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.rc-row .rc-val { font-weight: 600; }
.rc-row .rc-src { font-size: var(--fs-meta); color: var(--ink-3); line-height: 1.35; padding: 0; border: none; background: none !important; }
.rc-row .rc-v { padding: 0; border: none; background: none !important; }
.rc-row.open > div { background: color-mix(in srgb, var(--warn) 8%, transparent); }
.rc-row.open .rc-k { color: var(--warn); font-weight: 600; }
.rc-row.pending > div { background: color-mix(in srgb, var(--accent) 9%, transparent); }
.rc-row.pending .rc-val { color: var(--accent); }
.rc-ctl select, .rc-ctl input { font: inherit; font-size: var(--fs-ui); padding: 4px 6px; border-radius: 6px;
  border: 1px solid var(--rule-strong); background: var(--hull-0); color: var(--ink); max-width: 100%; }
.rc-change { background: none; border: none; color: var(--accent); font-size: var(--fs-meta); cursor: pointer; padding: 0 2px; }
.rc-change:hover { text-decoration: underline; }
.rc-basis-foot { display: flex; align-items: center; gap: 10px; margin-top: 10px; }
.rc-basis-foot:empty { display: none; }

.rc-work { margin: 2px 0 6px; border-radius: 8px; }
.rc-work > summary { list-style: none; cursor: pointer; display: flex; align-items: baseline; gap: 8px; padding: 5px 8px;
  border-radius: 8px; font-size: var(--fs-meta); color: var(--ink-3); }
.rc-work > summary::-webkit-details-marker { display: none; }
.rc-work > summary::before { content: '▸'; font-size: 10px; }
.rc-work[open] > summary::before { content: '▾'; }
.rc-work > summary:hover { background: var(--wash); }
.rc-work-n { font-size: var(--fs-meta); }
.rc-work-now { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rc-work-b { border-left: 1px solid var(--rule-strong); margin: 4px 0 4px 10px; padding-left: 10px; }
.rc-out { display: flex; flex-direction: column; }
.rc-stall { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: var(--fs-meta); color: var(--warn);
  padding: 8px 10px; border: 1px solid color-mix(in srgb, var(--warn) 40%, transparent); border-radius: 8px; margin: 6px 0; }

.rc-result { display: flex; gap: 12px; border: 1px solid var(--rule); border-radius: 10px; background: var(--hull-1);
  padding: 10px; margin: 8px 0; align-items: flex-start; }
.rc-thumb { width: 112px; height: 112px; object-fit: contain; border-radius: 8px; background: var(--hull-3);
  border: 1px solid var(--rule); flex: none; }
.rc-rbody { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 7px; }
.rc-rhead { display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; font-size: var(--fs-title); }
.rc-rhead .mono { font-size: var(--fs-meta); }
.rc-fails:empty { display: none; }
.rc-fail { font-size: var(--fs-meta); color: var(--err); display: flex; flex-direction: column; gap: 4px; padding: 6px 8px;
  border-radius: 7px; background: color-mix(in srgb, var(--err) 7%, transparent); }
.rc-fix { align-self: flex-start; background: none; border: 1px solid var(--accent); color: var(--accent); border-radius: 6px;
  font-size: var(--fs-meta); padding: 3px 9px; cursor: pointer; text-align: left; }
.rc-fix:hover { background: var(--wash); }
.rc-dl { display: flex; gap: 6px; flex-wrap: wrap; }
.rc-link { font-size: var(--fs-meta); padding: 3px 9px; border-radius: 6px; border: 1px solid var(--rule-strong);
  color: var(--accent); text-decoration: none; background: var(--hull-2); }
.rc-link:hover { border-color: var(--accent); }
.rc-dl .rc-ghost { font-size: var(--fs-meta); padding: 3px 9px; }

.pending-bar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; padding: 8px 12px; margin: 0 10px 6px;
  border: 1px solid var(--accent); border-radius: 10px; background: color-mix(in srgb, var(--accent) 8%, var(--hull-1)); font-size: var(--fs-meta); }
.pending-bar[hidden] { display: none; }
.pb-what { display: flex; gap: 4px; align-items: baseline; }
.pb-list { display: flex; gap: 6px; flex-wrap: wrap; flex: 1; min-width: 0; }
.pb-chip { padding: 2px 8px; border-radius: 12px; background: var(--hull-2); border: 1px solid var(--rule); }
.pb-chip s { color: var(--ink-3); }
.suggest-row { display: flex; gap: 6px; flex-wrap: wrap; padding: 6px 12px 4px; }
.suggest-row[hidden] { display: none; }
.suggest-row .sg { font-size: var(--fs-meta); padding: 5px 11px; border-radius: 16px; border: 1px solid var(--rule-strong);
  background: var(--hull-1); color: var(--ink-2); cursor: pointer; max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.suggest-row .sg:hover { border-color: var(--accent); color: var(--accent); }
.suggest-row .sg.draft::after { content: ' ✎'; color: var(--ink-4); }
@media (max-width: 900px) {

  .rc-thumb { width: 72px; height: 72px; }
}
.rc-optional-h { grid-column: 1 / -1; font-size: var(--fs-meta); color: var(--ink-3); padding: 10px 0 4px; border-top: 1px dashed var(--rule); }
.rc-row.optional .rc-k { font-weight: 500; color: var(--ink-2); border-left: none; padding-left: 0; }
.rc-row.optional > div { background: none; }
.rc-row.optional.pending > div { background: color-mix(in srgb, var(--accent) 9%, transparent); }
.rc-docs { margin: 4px 0; }
.rc-docs > summary { cursor: pointer; display: flex; gap: 8px; align-items: baseline; font-size: var(--fs-meta); padding: 4px 8px; border-radius: 8px; list-style: none; }
.rc-docs > summary::-webkit-details-marker { display: none; }
.rc-docs > summary::before { content: '▸'; font-size: 10px; color: var(--ink-3); }
.rc-docs[open] > summary::before { content: '▾'; }
.rc-docs > summary:hover { background: var(--wash); }
.rc-docs-n { font-size: var(--fs-meta); color: var(--accent); }
.rc-docs > div { padding-left: 22px; }
/* STUDIO_DESIGN_DOCS_V2 (docsgroup.js): the run's documents as a register: header strip, filters, groups, columns when wide, drawer */
.rc-docs--v2 > .dd-host { padding: 2px 0 4px 14px; }
.dd-reg { container-type: inline-size; font-size: var(--fs-meta); }
.dd-strip { display: flex; flex-direction: column; gap: 3px; padding: 8px 10px; border: 1px solid var(--rule); border-radius: 8px; background: var(--hull-2); }
.dd-counts { color: var(--ink-2); font-size: var(--fs-meta); }
.dd-nextline { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; color: var(--ink); }
.dd-nextgo { background: none; border: 0; padding: 0; color: var(--accent); font: inherit; text-align: left; cursor: pointer; }
.dd-nextgo:hover { text-decoration: underline; }
.dd-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 12px; margin: 8px 0 6px; }
.dd-filters, .dd-by { display: flex; flex-wrap: wrap; gap: 4px; align-items: center; }
.dd-fchip, .dd-seg { font: inherit; font-size: var(--fs-meta); padding: 3px 9px; border-radius: 999px; border: 1px solid var(--rule-strong); background: var(--hull-1); color: var(--ink-2); cursor: pointer; display: inline-flex; gap: 5px; align-items: center; }
.dd-fchip:hover, .dd-seg:hover { border-color: var(--accent); color: var(--ink); }
.dd-fchip.on, .dd-seg.on { background: var(--wash); border-color: var(--accent); color: var(--ink); font-weight: 600; }
.dd-fn { font-size: var(--fs-meta); color: var(--ink-3); }
.dd-by-l { color: var(--ink-3); font-size: var(--fs-meta); }
.dd-expand { margin-left: auto; }
.dd-colh { display: none; }
.dd-group { margin: 6px 0; border: 1px solid var(--rule); border-radius: 8px; background: var(--hull-1); }
.dd-group > summary { cursor: pointer; display: flex; flex-wrap: wrap; gap: 6px 10px; align-items: center; padding: 7px 10px; list-style: none; font-size: var(--fs-ui); }
.dd-group > summary::-webkit-details-marker { display: none; }
.dd-group > summary::before { content: '▸'; font-size: 10px; color: var(--ink-3); }
.dd-group[open] > summary::before { content: '▾'; }
.dd-group[open] > summary { border-bottom: 1px solid var(--rule); }
.dd-gname { font-weight: 600; color: var(--ink); }
.dd-gn { font-size: var(--fs-meta); color: var(--ink-3); }
.dd-gneed { font-size: var(--fs-meta); color: var(--warn); }
.dd-zip { margin-left: auto; }
.dd-row { display: grid; grid-template-columns: 1fr auto; grid-template-areas: 'doc st' 'fmt fmt' 'meta meta' 'next next'; gap: 3px 10px; padding: 7px 10px 7px 26px; border-top: 1px solid var(--rule); align-items: baseline; }
.dd-group > summary + .dd-row { border-top: 0; }
.dd-row:not(.dd-row--none):not(.dd-row--more) { cursor: pointer; }
.dd-row:not(.dd-row--none):not(.dd-row--more):hover { background: var(--wash); }
.dd-c-doc { grid-area: doc; min-width: 0; display: flex; flex-wrap: wrap; gap: 2px 8px; align-items: baseline; }
.dd-c-st { grid-area: st; }
.dd-c-fmt { grid-area: fmt; }
.dd-c-rev, .dd-c-upd { grid-area: meta; }
.dd-c-rev { justify-self: start; }
.dd-c-upd { justify-self: end; font-size: var(--fs-meta); color: var(--ink-3); }
.dd-c-next { grid-area: next; display: flex; flex-wrap: wrap; gap: 4px 8px; align-items: center; }
.dd-c-next:empty, .dd-c-rev:empty { display: none; }
.dd-title { color: var(--ink); text-decoration: none; }
a.dd-title:hover, .dd-open:hover { color: var(--accent); text-decoration: underline; }
.dd-open { background: none; border: 0; padding: 0; font: inherit; text-align: left; cursor: pointer; }
.dd-open:focus-visible, .dd-nextgo:focus-visible, .dd-fchip:focus-visible, .dd-seg:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.dd-no { font-size: var(--fs-meta); color: var(--ink-3); }
.dd-row--none .dd-title { color: var(--ink-3); }
.dd-row--none { grid-template-areas: 'doc next'; padding-top: 5px; padding-bottom: 5px; }
.dd-row--none .dd-c-next { justify-self: end; }
.dd-gstale { padding: 6px 10px 6px 26px; font-size: var(--fs-meta); color: var(--warn); background: var(--hull-2); border-bottom: 1px solid var(--rule); }
.dd-rst { font-size: var(--fs-meta); color: var(--ok); margin-top: 2px; }
.dd-row--more { grid-template-areas: 'doc fmt'; padding-left: 38px; }
.dd-fmts, .dd-revs { display: inline-flex; flex-wrap: wrap; gap: 4px; }
.dd-fmt { font-size: var(--fs-meta); padding: 1px 7px; border: 1px solid var(--rule-strong); border-radius: 999px; color: var(--ink-2); text-decoration: none; line-height: 1.6; }
a.dd-fmt:hover { border-color: var(--accent); color: var(--accent); }
.dd-rev { font-size: var(--fs-meta); padding: 0 6px; border-radius: 4px; line-height: 1.7; background: var(--ink-2); color: var(--hull-1); }
.dd-rev--draft { background: none; color: var(--ink-2); border: 1px dashed var(--ink-3); }
.dd-st { font-size: var(--fs-meta); padding: 0 7px; border-radius: 999px; line-height: 1.7; border: 1px solid currentColor; white-space: nowrap; }
.dd-st--draft { color: var(--ink-3); }
.dd-st--ready, .dd-st--checked { color: var(--accent); }
.dd-st--issued, .dd-st--approved, .dd-st--certified, .dd-st--pass { color: var(--ok); }
.dd-st--stale { color: var(--stale); }
.dd-st--fail { color: var(--err); }
.dd-st--na { color: var(--ink-3); border-style: dashed; }
.dd-st--cancelled { color: var(--ink-4); text-decoration: line-through; }
.dd-next-t { color: var(--ink-2); }
.dd-next-t--warn { color: var(--warn); }
.dd-next-t--none { color: var(--ink-3); font-style: italic; }
.dd-next-act { color: var(--ink-2); }
.dd-owner { font-size: var(--fs-meta); letter-spacing: .06em; font-weight: 700; padding: 0 5px; border-radius: 3px; line-height: 1.7; border: 1px solid var(--rule-strong); color: var(--ink-3); }
.dd-owner--us { color: var(--warn); border-color: currentColor; }
.dd-owner--checker { color: var(--accent); border-color: currentColor; }
.dd-owner--client { color: var(--ink-2); }
.dd-more { border-top: 1px solid var(--rule); }
.dd-more > summary { cursor: pointer; padding: 5px 10px 5px 26px; font-size: var(--fs-meta); color: var(--ink-3); }
.dd-empty { padding: 12px; color: var(--ink-3); }
.dd-hooks:empty { display: none; }
/* wide (the register sheet, or a wide pane): one line per document, the portal register's columns */
@container (min-width: 820px) {
  .dd-colh { display: grid; padding: 0 10px 4px 26px; font-size: var(--fs-meta); letter-spacing: .05em; text-transform: uppercase; color: var(--ink-3); }
  .dd-colh, .dd-row { grid-template-columns: minmax(220px, 2.2fr) minmax(150px, 1.3fr) minmax(90px, .8fr) 110px 90px minmax(200px, 2fr); grid-template-areas: none; column-gap: 12px; }
  .dd-row > *, .dd-colh > * { grid-area: auto; justify-self: start; }
  .dd-row { align-items: center; padding-top: 6px; padding-bottom: 6px; }
  .dd-row--none .dd-c-next { grid-column: 6; justify-self: start; }
  .dd-row--more { grid-template-columns: minmax(220px, 2.2fr) 1fr; }
  .dd-c-rev:empty, .dd-c-next:empty { display: block; }
}
/* the drawer (right sheet) and the wide register sheet; full screen on a phone */
.dd-scrim { position: fixed; inset: 0; background: var(--scrim); z-index: 90; display: flex; justify-content: flex-end; }
.dd-scrim--reg { justify-content: center; align-items: stretch; padding: 24px; }
.dd-scrim--drawer { z-index: 91; }
.dd-sheet { background: var(--hull-1); color: var(--ink); box-shadow: var(--elev-2); display: flex; flex-direction: column; min-height: 0; }
.dd-scrim--drawer .dd-sheet { width: min(460px, 100%); height: 100%; border-left: 1px solid var(--rule); }
.dd-scrim--reg .dd-sheet { width: min(1320px, 100%); border-radius: 10px; border: 1px solid var(--rule); }
.dd-dh { display: flex; align-items: flex-start; gap: 10px; padding: 12px 14px; border-bottom: 1px solid var(--rule); }
.dd-dh-t { flex: 1; min-width: 0; }
.dd-dh-name { font-weight: 600; font-size: var(--fs-title); flex: 1; }
.dd-dh-sub { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; align-items: center; font-size: var(--fs-meta); }
.dd-db { overflow: auto; padding: 12px 14px 20px; flex: 1; min-height: 0; font-size: var(--fs-ui); }
.dd-dsec { font-size: var(--fs-meta); letter-spacing: var(--track-caps); text-transform: uppercase; color: var(--ink-3); margin-bottom: 6px; }
.dd-dnext { border: 1px solid var(--rule-strong); border-radius: 8px; padding: 10px 12px; background: var(--hull-2); margin-bottom: 14px; }
.dd-dnext--warn { border-color: var(--warn); }
.dd-dnext-b { display: flex; flex-wrap: wrap; gap: 6px 8px; align-items: center; font-size: var(--fs-ui); }
.dd-dsect { margin-bottom: 14px; }
.dd-rlist { display: flex; flex-direction: column; gap: 6px; }
.dd-ritem { border: 1px solid var(--rule); border-radius: 8px; padding: 8px 10px; }
.dd-ritem--cur { border-color: var(--accent); }
.dd-ritem-h { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 2px; }
.dd-rfiles { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.dd-check { display: grid; grid-template-columns: auto auto 1fr; gap: 8px; align-items: baseline; padding: 4px 0; border-top: 1px solid var(--rule); }
.dd-muted { color: var(--ink-3); font-size: var(--fs-meta); }
.dd-rnote { margin-top: 6px; }
@media (max-width: 520px) {
  .rc-docs--v2 > .dd-host { padding-left: 0; }
  .dd-group > summary { min-height: 44px; }
  .dd-row { padding-left: 12px; }
  .dd-fmt { padding: 6px 11px; min-height: 32px; display: inline-flex; align-items: center; }
  .dd-fchip, .dd-seg, .dd-expand, .dd-zip, .dd-rdl { min-height: 44px; padding: 0 12px; }
  .dd-nextgo { padding: 10px 0; }
  .dd-open { padding: 6px 0; }
  .dd-scrim--reg { padding: 0; }
  .dd-scrim--reg .dd-sheet { border-radius: 0; }
  .dd-scrim--drawer .dd-sheet { width: 100%; border-left: 0; }
  .dd-dh-x { min-width: 44px; min-height: 44px; }
}

/* chat answers (mdBox): markdown tables + engine download links */
.md-table { border-collapse: collapse; margin: 6px 0; font-size: var(--fs-meta); max-width: 100%; display: block; overflow-x: auto; }
.md-table th, .md-table td { border: 1px solid var(--rule); padding: 3px 8px; text-align: left; vertical-align: top; }
.md-table th { background: var(--hull-2); font-weight: 600; }
.md-dl { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; word-break: break-all; }
/* grounding check (server: " [check]" after a value the copilot's data does not hold) + its one-line note */
.fx-check { display: inline-block; margin-left: 2px; vertical-align: 1px; cursor: help; }      /* the chip inside is shared/status.js to_check (.badge.warn) */
.fx-check .badge { height: 17px; padding: 0 6px; font-size: var(--fs-meta); }
.fx-check-note { margin-top: 8px; padding-top: 6px; border-top: 1px solid var(--rule); font-size: var(--fs-meta); line-height: 1.45; color: var(--ink-3); }

/* engineer CAD import note in the chat (js/imports.js) + drop target */
.import-card { margin: 8px 4px; padding: 10px 12px; border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--rule)); border-radius: 8px; background: var(--hull-1); font-size: var(--fs-ui); display: flex; flex-direction: column; gap: 8px; }
.ic-head { display: flex; gap: 8px; align-items: center; }
.ic-ico { color: var(--accent); font-weight: 700; }
.ic-kv { display: grid; grid-template-columns: max-content 1fr; gap: 3px 12px; }
.ic-k { color: var(--ink-3); }
.ic-v { color: var(--ink); overflow-wrap: anywhere; }
.ic-warn { color: var(--warn); font-size: var(--fs-meta); }
.ic-hint { color: var(--ink-3); font-size: var(--fs-meta); line-height: 1.45; }
.ic-acts { display: flex; gap: 8px; flex-wrap: wrap; }
#chat.drop-on { outline: 2px dashed var(--accent); outline-offset: -6px; }

/* catalogues (js/catalogues.js): approval card in the chat + the Catalogues view */
.approval-card, .cat-flow { margin: 8px 4px; padding: 12px; border: 1px solid color-mix(in srgb, var(--warn) 45%, var(--rule)); border-radius: 8px; background: color-mix(in srgb, var(--warn) 4%, var(--hull-1)); display: flex; flex-direction: column; gap: 8px; font-size: var(--fs-ui); }
.cat-page .cat-flow { margin: 0 0 14px; }
.approval-note { margin: 6px 4px; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.cat-h { display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; }
.cat-ico { color: var(--warn); font-weight: 700; } .cat-ico.ok { color: var(--ok); }
.cat-q, .cat-name { font: inherit; font-size: var(--fs-ui); padding: 6px 8px; border-radius: 6px; border: 1px solid var(--rule); background: var(--hull-0); color: var(--ink); min-width: 0; }
.cat-name { flex: 1 1 180px; }
.cat-foot { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.cat-results { display: flex; flex-direction: column; gap: 6px; max-height: 320px; overflow: auto; }
.cat-res { display: grid; grid-template-columns: auto 1fr; gap: 8px; align-items: start; padding: 6px 8px; border: 1px solid var(--rule); border-radius: 6px; cursor: pointer; }
.cat-res:hover { background: var(--wash); }
.cat-snip { color: var(--ink-3); font-size: var(--fs-meta); margin-top: 2px; }
.cat-link { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; overflow-wrap: anywhere; }
.cat-warn { color: var(--warn); font-size: var(--fs-meta); }
.cat-failed { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 6px; color: var(--ink-2); font-size: var(--fs-meta); }      /* "Could not read" is a failure: the read_failed chip (red) + the pages */
.cat-tablewrap { max-width: 100%; overflow: auto; max-height: 360px; border: 1px solid var(--rule); border-radius: 6px; }
.cat-table { border-collapse: collapse; font-size: var(--fs-meta); width: max-content; min-width: 100%; }
.cat-table th, .cat-table td { border-bottom: 1px solid var(--rule); padding: 4px 8px; text-align: left; white-space: nowrap; max-width: 280px; overflow: hidden; text-overflow: ellipsis; }
.cat-table th { position: sticky; top: 0; background: var(--hull-2); font-weight: 600; }
.cat-list { display: flex; flex-direction: column; gap: 10px; }
.cat-card { border: 1px solid var(--rule); border-radius: 10px; padding: 10px 12px; background: var(--hull-1); display: flex; flex-direction: column; gap: 6px; }
.cat-srcs { display: flex; gap: 10px; flex-wrap: wrap; font-size: var(--fs-meta); }
.cat-kind { font-size: var(--fs-meta); padding: 1px 7px; border-radius: 10px; background: var(--wash); color: var(--ink-2); }
.cat-kind.web { background: color-mix(in srgb, var(--accent) 15%, transparent); color: var(--accent); }
.rc-ghost.danger { color: var(--err); }

.cat-page { max-width: 1200px; }

/* provenance: a shared demo (read-only for this account) and the engineer's
   own copy of one — named in the part header, the rail and the gallery */
.prov { display: inline-flex; align-items: center; gap: 4px; height: 20px; padding: 0 8px; border-radius: 999px;
  font-size: var(--fs-meta); font-weight: 600; white-space: nowrap; border: 1px solid var(--rule-strong); color: var(--ink-2);
  background: transparent; }
.prov.demo { border-style: dashed; }
.prov.copy { border-color: color-mix(in srgb, var(--accent) 45%, transparent); color: var(--accent); }
.prov button { background: none; border: none; padding: 0; color: inherit; font: inherit; text-decoration: underline;
  cursor: pointer; }
.zc-row .prov-t { color: var(--accent); font-weight: 600; }

/* the agent's answer: ONE look whether it streamed in or arrived whole */
.answer { font-size: var(--fs-ui); line-height: 1.55; padding: 8px 12px; margin: 6px 0; background: var(--hull-1);
  border: 1px solid var(--rule); border-radius: 8px; }
.answer.live { white-space: pre-wrap; }
.answer.live::after { content: '▌'; color: var(--accent); animation: blink 1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }
/* information (e.g. "made your own copy") is calm; warnings stay amber */
.notice.info { border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  background: color-mix(in srgb, var(--accent) 7%, transparent); margin: 4px 0 8px; }
.notice.info .n-ico { color: var(--accent); font-style: italic; font-family: Georgia, serif; }
#proj.copy { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 45%, transparent); }
/* a chat whose run is still working */
.zc-busy { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); flex: none; margin-right: 6px;
  animation: zcpulse 1.2s ease-in-out infinite; }
@keyframes zcpulse { 50% { opacity: .25; transform: scale(.7); } }
@media (prefers-reduced-motion: reduce) { .zc-busy, .answer.live::after, .think-row .pulse { animation: none; } }
/* the message is the run's title: the lane label gives way to it */
.run-head .rt { min-width: 40%; }
.run-head .rc-lane { flex: 0 1 auto; min-width: 0; max-width: 34%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── polish 2026-09-29 ─────────────────────────────────────────────── */
/* a finished run's design basis: value and source on one line */
html[data-polish='1'] .rc-basis.dense .rc-row .rc-src { display: none; }
html[data-polish='1'] .rc-basis.dense .rc-row.show-src .rc-src { display: block; }
html[data-polish='1'] .rc-basis.dense .rc-row.has-src .rc-k { cursor: pointer; text-decoration: underline dotted var(--ink-4); text-underline-offset: 3px; }
html[data-polish='1'] .rc-basis.dense .rc-row .rc-change { opacity: .55; }
html[data-polish='1'] .rc-basis.dense .rc-row:hover .rc-change, html[data-polish='1'] .rc-basis.dense .rc-row .rc-change:focus-visible { opacity: 1; }
html[data-polish='1'] .rc-basis.dense .rc-row > div { padding-top: 4px; padding-bottom: 4px; }
html[data-polish='1'] .rc-more { grid-column: 1 / -1; justify-self: start; margin-top: 6px; background: none; border: none; padding: 0;
  color: var(--accent); font-size: var(--fs-meta); cursor: pointer; }
html[data-polish='1'] .rc-more:hover { text-decoration: underline; }
/* a running chat shows it is working, even when collapsed or scrolled */
html[data-polish='1'] .run-head { position: relative; overflow: hidden; }
html[data-polish='1'] .run-head:has(.pill.run)::after { content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: 35%;
  background: var(--accent); border-radius: 2px; animation: rh-run 1.6s ease-in-out infinite; }
@keyframes rh-run { 0% { transform: translateX(-100%); } 100% { transform: translateX(290%); } }
@media (prefers-reduced-motion: reduce) { html[data-polish='1'] .run-head:has(.pill.run)::after { animation: none; width: 100%; opacity: .5; } }

/* chat memory meter (context frames) */
.ctx-meter { margin-left: auto; display: inline-flex; align-items: center; gap: 6px; font-weight: 500;
  font-size: var(--fs-meta); color: var(--ink-3); font-variant-numeric: tabular-nums; }
.ctx-bar { width: 54px; height: 5px; border-radius: 3px; background: var(--rule); overflow: hidden; }
.ctx-bar i { display: block; height: 100%; width: 0; background: var(--ink-3); }
.ctx-meter.warn .ctx-bar i { background: var(--warn); }

.ck-catpage { display: block; width: 100%; max-width: 720px; height: auto; border: 1px solid var(--rule); border-radius: 4px; background: #fff; }

/* glossary terms (kit.js glossify): dotted underline + shared tooltip */
.ck-term { text-decoration: underline dotted; text-decoration-color: color-mix(in srgb, var(--ink-4) 45%, transparent);
  text-underline-offset: 4px; cursor: help; }
.ck-term:hover { text-decoration-color: var(--ink-3); }
.ck-term:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }
.ck-tip { position: fixed; z-index: 300; max-width: 320px; padding: 7px 10px;
  background: var(--hull-2); color: var(--ink); border: 1px solid var(--rule-strong);
  border-radius: var(--r-lg); box-shadow: var(--shadow);
  font-size: var(--fs-meta); line-height: 1.45; }
.ck-tip[hidden] { display: none; }
/* calculator UX round (2026-09-30): hover-to-audit, optional, shared, auto, changed */
.ck-tip.calc { max-width: 480px; white-space: pre-line; font-family: var(--mono, ui-monospace, monospace); font-size: var(--fs-meta); line-height: 1.45; }
.ck-calc { cursor: help; text-decoration: underline dotted; text-underline-offset: 3px; text-decoration-color: var(--ink-3); }
.ck-opt { margin-left: 6px; font-size: var(--fs-meta); font-weight: 500; color: var(--ink-3); text-transform: lowercase; letter-spacing: .02em; }
/* RC19 UX C-H2: a Solaris-practice value says so beside its label */
.ck-opt.ck-practice { text-transform: none; color: var(--ink-2); font-style: normal; }
.ck-link { display: block; font-size: var(--fs-meta); color: var(--accent); margin-top: 3px; }
.ck-field.linked input { border-color: var(--accent); }
.ck-autoval { display: block; font-size: var(--fs-meta); color: var(--warn); margin-top: 3px; }
.ck-hl.ck-changed { box-shadow: inset 0 0 0 2px var(--warn); }
.ck-was { font-size: var(--fs-meta); color: var(--ink-3); margin-top: 2px; }

/* advice: what to change next, each figure re-solved by the engine (2026-10-01) */
.ck-advice { border: 1px solid var(--rule-strong); border-radius: 10px; background: var(--hull-0); min-width: 0; }
.ck-adv { display: flex; align-items: center; gap: 12px; padding: 9px 12px; }
.ck-adv + .ck-adv { border-top: 1px solid var(--rule); }
.ck-adv-b { flex: 1 1 auto; min-width: 0; font-size: var(--fs-ui); line-height: 1.45; color: var(--ink); }
.ck-adv-k { display: inline-block; min-width: 46px; margin-right: 8px; font-size: var(--fs-meta); font-weight: 700;
  letter-spacing: var(--track-caps); text-transform: uppercase; color: var(--ink-3); }
.ck-adv.fix .ck-adv-k { color: var(--err); }
.ck-adv.better .ck-adv-k { color: var(--ok); }
.ck-adv-g { display: block; margin-top: 2px; font-size: var(--fs-meta); color: var(--ink-3); font-variant-numeric: tabular-nums; }
.ck-adv-use { flex: none; min-width: 52px; }
.ck-adv-use:disabled { opacity: .55; cursor: progress; }
@media (max-width: 520px) { .ck-adv { align-items: flex-start; } .ck-adv-use { min-height: 36px; } }

/* quotation pack (2026-09-30) */
/* the comparison is one column per option, not a row per option: the box
   scrolls sideways on a phone instead of crushing the columns */
.ck-pack-cmp { overflow-x: auto; border: 1px solid var(--rule); border-radius: 10px; background: var(--hull-0); }
.ck-pack-cols { display: flex; align-items: stretch; min-width: 100%; }
.ck-pack-col { flex: 1 0 210px; display: flex; flex-direction: column; gap: 6px; padding: 10px 12px;
  border-right: 1px solid var(--rule); min-width: 0; }
.ck-pack-col:last-child { border-right: none; }
.ck-pack-col.rec { background: color-mix(in srgb, var(--accent) 7%, transparent); box-shadow: inset 0 0 0 1px var(--accent); }
.ck-pack-head { display: flex; flex-direction: column; gap: 2px; }
.ck-pack-flag { align-self: flex-start; font-size: var(--fs-meta); font-weight: 700; letter-spacing: var(--track-caps); text-transform: uppercase;
  color: var(--accent); }
.ck-pack-margin { font-size: var(--fs-meta); color: var(--ink-3); font-family: var(--mono); }
.ck-pack-row { display: flex; flex-direction: column; border-top: 1px solid var(--rule); padding-top: 5px; }
.ck-pack-l { font-size: var(--fs-meta); letter-spacing: .05em; text-transform: uppercase; color: var(--ink-3); font-weight: 650; }
.ck-pack-v { font-size: var(--fs-ui); }
.ck-pack-v.best { color: var(--ok); font-weight: 650; }
.ck-pack-use { align-self: flex-start; margin-top: 4px; }
.ck-pack-sub { font-weight: 650; }
.ck-pack-src { display: flex; flex-direction: column; gap: 3px; }
/* the costing sheet: the engineer's unit cost, typed per BOM row */
.ck-cost { width: 96px; height: 26px; padding: 0 6px; text-align: right; font: 500 var(--fs-meta)/1 var(--mono);
  color: var(--ink); background: var(--hull-0); border: 1px solid var(--rule-strong); border-radius: 6px; }
.ck-cost:focus { outline: none; border-color: var(--accent); }

.pk-upload { border: 1px dashed var(--accent); border-radius: 8px; padding: 10px 12px; margin-bottom: 12px; background: var(--wash); }
.pk-upload-t { font-weight: 600; font-size: var(--fs-ui); }
.pk-upload-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 8px; }
.pk-upload-row input[type=file] { flex: 1 1 200px; min-width: 0; font-size: var(--fs-meta); }

/* the Hose finder's mode switch (2026-10-01): above the fields, so the way
   into browse mode sits beside the minimums it clears */
.ck-selmode { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; margin-bottom: 10px; }
.ck-selmode .ck-hint { margin: 0; }

/* design pass (2026-10-01) ---------------------------------------------------------------- */
/* the empty 3D view: a clear start, not three small boxes lost in the grid */
.hero-start { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 10px; pointer-events: none; z-index: 4; padding: 24px 24px 18vh; text-align: center; }
.hero-start .hero-h { font-size: var(--fs-h1); font-weight: 700; color: var(--ink); letter-spacing: -.01em; }
.hero-start .hero-p { font-size: var(--fs-ui); color: var(--ink-3); max-width: 44ch; margin-bottom: 8px; }
.hero-start .hero-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; pointer-events: auto; }
.hero-start .hc { display: flex; flex-direction: column; gap: 3px; min-width: 190px; padding: 14px 18px; text-align: left;
  border: 1px solid var(--rule-strong); border-radius: 10px; background: var(--hull-2);
  box-shadow: 0 2px 8px rgba(0,0,0,.12); transition: border-color .15s, transform .15s; }
.hero-start .hc:hover { border-color: var(--accent); transform: translateY(-1px); }
.hero-start .hc b { font-size: var(--fs-title); font-weight: 650; color: var(--ink); }
.hero-start .hc span { font-size: var(--fs-meta); color: var(--ink-3); }
.hero-start .hc[data-h="brief"] { border-color: var(--accent); background: var(--wash); }
@media (max-width: 700px) { .hero-start .hc { min-width: 0; flex: 1 1 100%; } }
/* key-value tables: sentences in the text face, figures and codes in mono */
.ck-kv td.ck-kv-text { font-family: var(--sans); font-size: var(--fs-ui); color: var(--ink); }
/* header: when all is well a narrow header keeps only the green dot (its state is its aria-label and tooltip, app.js
   sayStatus); a wide one says it in words too (RC19.2, Alan: "two bare green dots"). Words come back whenever something is wrong. */
@media (max-width: 1199px) {
  #laneWrap.quiet #laneTxt, #agentWrap.quiet #agentTxt { position: absolute; width: 1px; height: 1px; overflow: hidden;
    clip: rect(0 0 0 0); white-space: nowrap; }
  #agentWrap.quiet { padding: 0 8px; }
}
#laneWrap #laneTxt, #agentWrap #agentTxt { white-space: nowrap; }
/* "Open in calculator" on a calculator step in the chat's working (2026-10-01) */
.tcard summary .tcalc { flex: none; height: 22px; padding: 0 8px; font-size: var(--fs-meta); }
@media (pointer: coarse) { .tcard summary .tcalc { height: 36px; } }
/* active labels on their accent wash: the deeper accent reads 5.9:1 (a11y-studio, was 4.4:1) */
html[data-theme="light"] .hud button.on, html[data-theme="light"] .nav-item.on .nav-ico,
html[data-theme="light"] .ck-list button.on, html[data-theme="light"] .ck-pick-chip.on { color: var(--accent-deep); }
/* phones: composer, chips, recent chats and buttons at least 40 px to tap (a11y-studio P2) */
@media (pointer: coarse) {
  #send, #attach, #menuBtn { min-height: 40px; min-width: 40px; }
  .zc-row, .sg, .btn, #topbar .topbar-search { min-height: 40px; }
}

/* a chat made from a quotation job (2026-10-02): banner when the job moved on (the way back is the shared job bar, shared/jobbar.css) */
.job-drift { display: flex; gap: 10px; align-items: center; margin: 0 10px 8px; padding: 8px 10px; border-radius: 8px;
  border: 1px solid color-mix(in srgb, var(--warn) 45%, var(--rule)); background: color-mix(in srgb, var(--warn) 8%, var(--hull-1));
  font-size: var(--fs-meta); color: var(--ink); }
.job-drift span { flex: 1; min-width: 0; }
.job-drift .btn { flex: none; }
/* RC19.2 r2: a reply that goes on in the chat the engineer left (app.js paintLeftRun): the drift banner's shape, a neutral
   tone while it runs and the ok tone once it is finished; the link back and the dismiss stay on one line on a phone */
.job-drift.left-run { border-color: var(--rule); background: var(--hull-1); }
.job-drift.left-run.done { border-color: color-mix(in srgb, var(--ok) 45%, var(--rule)); background: color-mix(in srgb, var(--ok) 7%, var(--hull-1)); }
.job-drift.left-run .btn.ghost { padding-inline: 8px; }
/* RC19 UX review C-L2: calculator fields and reset links are thumb-sized on touch (16 px text: no zoom on focus) */
/* the 44 px reset link takes no row height (-13 px each side), so the input does not jump under the finger on the
   first edit (ux-rc19-polish MED-1); the BOM textarea at 16 px too (LOW-3: iOS zooms on focus below 16 px) */
@media (pointer: coarse) { .ck-field input:not([type=checkbox]), .ck-field select { height: 44px; font-size: var(--fs-touch); }
  .ck-field textarea { font-size: var(--fs-touch); } .ck-def { min-height: 44px; padding: 0 8px; margin-block: -13px; } }

/* ── STUDIO_LAYOUT_V2: the one rail (shared/header.js mountShell; app.js boot moves #rail to be #app's first child) ──
   rail | bar over Design's own rows (the phone strip, the columns); the phone tab bar under both. Flag off: nothing here. */
html[data-layout="v2"] #app { display: grid; grid-template-columns: auto minmax(0, 1fr); grid-template-rows: 48px auto minmax(0, 1fr) auto; }
html[data-layout="v2"] #app > #rail { grid-column: 1; grid-row: 1 / 4; width: var(--rail-w, 232px); }
html[data-layout="v2"] #app > #topbar, html[data-layout="v2"] #app > #mseg, html[data-layout="v2"] #app > #cols { grid-column: 2; min-width: 0; }
html[data-layout="v2"] #app > #topbar { grid-row: 1; }
html[data-layout="v2"] #app > #mseg { grid-row: 2; }
html[data-layout="v2"] #app > #cols { grid-row: 3; min-height: 0; }
html[data-layout="v2"] #app > .sh-tabbar { grid-column: 1 / -1; grid-row: 4; }
html[data-layout="v2"] #rail > #railSplit { position: absolute; top: 0; right: 0; bottom: 0; z-index: 2; }
html[data-layout="v2"] #topbar #btnSettings { display: none; }
html[data-layout="v2"] #menuBtn { display: none; }
html[data-layout="v2"] #rail .sh-ctx .nav-sec { padding: 0; }
@media (max-width: 899px) {
  /* the rail stays a column down to 761 px (Design's old drawer started at 899) */
  html[data-layout="v2"] #rail { position: relative; top: auto; transform: none; box-shadow: none; max-width: none; z-index: auto;
    width: var(--rail-w, 232px) !important; }
}
@media (max-width: 760px) {
  html[data-layout="v2"] #app { grid-template-columns: minmax(0, 1fr); }
  html[data-layout="v2"] #app > #topbar, html[data-layout="v2"] #app > #mseg, html[data-layout="v2"] #app > #cols { grid-column: 1; }
  html[data-layout="v2"] #menuBtn { display: inline-grid; }
  html[data-layout="v2"] #rail { position: fixed; top: 0; bottom: 0; left: 0; z-index: 120; width: min(84vw, 320px) !important; max-width: 320px;
    transform: translateX(-102%); visibility: hidden; }
  html[data-layout="v2"] body.rail-open #rail { transform: none; visibility: visible; box-shadow: var(--shadow); }
}
@media (max-width: 760px) { html[data-layout="v2"] #rail .nav-new { min-height: 44px; } html[data-layout="v2"] #rail .zc-row { min-height: 44px; } }

/* ── STUDIO_LAYOUT_V2 S3: Design, Library, Calculators (LAYOUT-SPEC §4-6, §8) ──
   The chat column moves right (CSS order, no DOM move): rail · work · split · chat (400). Design's rail content and the
   calculator list share #railCtx; the page on screen shows its own. The phone strip is Chat · Part (Library is a section). */
html[data-layout="v2"] #cols > #work { order: 1; }
html[data-layout="v2"] #cols > #chatSplit { order: 2; }
html[data-layout="v2"] #cols > #chat { order: 3; border-right: 0; border-left: 1px solid var(--rule); }
html[data-layout="v2"] #railCtx > .rc-design { display: flex; flex-direction: column; min-width: 0; }
html[data-layout="v2"] body[data-dest="calcs"] #railCtx > .rc-design { display: none; }
html[data-layout="v2"] body:not([data-dest="calcs"]) #railCtx > .ck-nav { display: none; }
html[data-layout="v2"] #railCtx > .ck-nav { width: auto; border: 0; padding: 4px 0 0; background: none; overflow: visible; gap: 6px; }
html[data-layout="v2"] #railCtx .ck-list h2 { font: 500 var(--fs-meta) var(--mono); letter-spacing: .12em; color: var(--ink-3); margin: 14px 10px 4px; }
html[data-layout="v2"] #railCtx .ck-list button { font-size: var(--fs-ui); min-height: 32px; padding: 6px 10px; }
html[data-layout="v2"] #railCtx .ck-list button.on { box-shadow: none; }
html[data-layout="v2"] #railCtx .ck-find { margin: 2px 0 4px; height: 34px; }
html[data-layout="v2"] #railCtx .nav-h { font: 500 var(--fs-meta) var(--mono); letter-spacing: .12em; color: var(--ink-3); }
html[data-layout="v2"] #railCtx .rc-job .rc-row { cursor: default; }
html[data-layout="v2"] #railCtx .rc-job .badge { margin-left: auto; flex: none; }
html[data-layout="v2"] #crumb .sep { color: var(--ink-4); margin: 0 6px; }
html[data-layout="v2"] .composer .send.is-primary { background: var(--accent-deep); color: #fff; border-color: transparent; }
html[data-layout="v2"] #mseg [data-m="projects"] { display: none; }
html[data-layout="v2"] body[data-dest="projects"] #mseg { display: none !important; }   /* the Library is a section: no Chat · Part strip on it */
@media (max-width: 899px) {
  html[data-layout="v2"] #crumb { display: flex; }
  html[data-layout="v2"] #cols > #chat { border-left: 0; }
}
@media (max-width: 760px) {
  html[data-layout="v2"] #railCtx .ck-list button { min-height: 44px; }
}

/* ── K14 role class (RC22.7 P2-15): text that used to carry an inline size; global, both layouts ── */
.fs-meta { font-size: var(--fs-meta); }