/* ---------------------------------------------------------------- theme
   Every colour is a token. Light is the default; dark redefines the tokens.
   The PDF page itself stays white paper in both themes -- traced colours are
   chosen against white, and inverting a drawing changes what it says. */
:root{
  color-scheme: light;
  --bg:#f4f5f7; --panel:#ffffff; --panel2:#f8f9fb; --hover:#f3f5f8;
  --line:#e2e5ea; --line2:#f0f2f5; --line-strong:#c9ced6;
  --ink:#171a20; --dim:#6b7280; --faint:#9aa3b2;
  --accent:#2f6feb; --accent-bg:#eaf0fd; --accent-ink:#1d4fb8;
  --ok:#22a559; --ok-bg:#e6f6ec; --ok-ink:#17803f;
  --warn:#b0432a; --warn-bg:#fff6f2; --warn-line:#f5d5c8; --warn-chip:#fdebe4;
  --track:#dfe3e8; --stage:#dfe2e7; --overlay:#ffffffe0; --amber:#d9a406;
  --shadow:0 1px 2px rgba(16,24,40,.05),0 8px 24px rgba(16,24,40,.07);
  --mono:"IBM Plex Mono",Consolas,"Cascadia Mono",monospace;
}
:root[data-theme="dark"]{
  color-scheme: dark;
  --bg:#0e1014; --panel:#161920; --panel2:#1b1f27; --hover:#1f242d;
  --line:#2a2f39; --line2:#20242c; --line-strong:#3a404c;
  --ink:#e7e9ee; --dim:#a0a8b6; --faint:#6c7483;
  --accent:#5b8cff; --accent-bg:#1a2744; --accent-ink:#b0c6ff;
  --ok:#3fbf73; --ok-bg:#15291e; --ok-ink:#86dfa8;
  --warn:#f0916f; --warn-bg:#261915; --warn-line:#5b3527; --warn-chip:#3a2119;
  --track:#2a2f39; --stage:#0a0c10; --overlay:#161920e6; --amber:#e8b92c;
  --shadow:0 1px 2px rgba(0,0,0,.45),0 10px 28px rgba(0,0,0,.38);
}

*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{font:13px/1.45 "IBM Plex Sans","Segoe UI",system-ui,sans-serif;color:var(--ink);background:var(--bg);overflow:hidden}
.mono{font-family:var(--mono)}
button{font:inherit;color:inherit;background:var(--panel);border:1px solid var(--line);border-radius:5px;padding:6px 10px;cursor:pointer}
button:hover{background:var(--hover)}
button.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
button.primary:hover{background:var(--accent);filter:brightness(1.07)}
button.dark{background:var(--ink);border-color:var(--ink);color:var(--bg)}
button.dark:hover{background:var(--ink);filter:brightness(1.1)}
button.danger{color:var(--warn);border-color:var(--warn-line)}
button.sm{padding:3px 8px;font-size:11.5px}
button:disabled{opacity:.45;cursor:default}
button:focus-visible,select:focus-visible,input:focus-visible,.pc:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
select,input[type=text],input[type=number],input[type=search]{font:inherit;padding:5px 8px;border:1px solid var(--line);border-radius:5px;background:var(--panel);color:var(--ink);width:100%}
input::placeholder{color:var(--faint)}
label.lbl{display:block;color:var(--dim);font-size:11px;text-transform:uppercase;letter-spacing:.06em;font-weight:600;margin:0 0 6px}
.hint{color:var(--dim);font-size:11.5px;line-height:1.5}
.chip{display:inline-block;padding:1px 7px;border-radius:10px;font-size:11px;font-weight:500;background:var(--line2);color:var(--dim);white-space:nowrap}
.chip.ok{background:var(--ok-bg);color:var(--ok-ink)}
.chip.warn{background:var(--warn-chip);color:var(--warn)}
.chip.acc{background:var(--accent-bg);color:var(--accent-ink)}
.row{display:flex;gap:8px;align-items:center}
.grow{flex:1;min-width:0}
.hidden{display:none!important}

/* ---------------------------------------------------------------- top bar */
#top{height:48px;display:flex;align-items:center;gap:14px;padding:0 16px;background:var(--panel);border-bottom:1px solid var(--line)}
#top .brand{display:flex;align-items:center;gap:8px;font-weight:600;font-size:14px;cursor:pointer}
#top .crumb{color:var(--faint)}
#tabs{display:flex;gap:3px;background:var(--bg);padding:3px;border-radius:6px;font-size:12px}
#tabs button{border:0;background:transparent;color:var(--dim);padding:4px 11px;border-radius:4px}
#tabs button:hover{color:var(--ink)}
#tabs button.on{background:var(--accent);color:#fff;font-weight:500}
.toggle{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--dim);cursor:pointer;user-select:none}
.toggle .sw{width:34px;height:18px;border-radius:9px;background:var(--line-strong);position:relative;transition:background .15s}
.toggle .sw::after{content:"";position:absolute;left:2px;top:2px;width:14px;height:14px;border-radius:50%;background:#fff;transition:left .15s}
.toggle.on .sw{background:var(--accent)}
.toggle.on .sw::after{left:18px}
#saved{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--dim)}
#saved i{width:8px;height:8px;border-radius:50%;background:var(--ok);display:inline-block}
#saved.dirty i{background:var(--amber)}
#user{font-size:12px;color:var(--dim);cursor:pointer}
.icon-btn{width:32px;height:32px;padding:0;display:grid;place-items:center;border-radius:8px;color:var(--dim)}
.icon-btn:hover{color:var(--ink)}

/* ---------------------------------------------------------------- views */
#home,#projectView,#work,#logPage{position:absolute;top:48px;left:0;right:0;bottom:0}
#home,#projectView{overflow:auto}
.card{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:16px 18px}
.card h3{margin:0 0 10px;font-size:13px}
.bar{height:4px;border-radius:2px;background:var(--track);margin-top:3px;overflow:hidden}
.bar i{display:block;height:100%;background:var(--accent)}

/* ---------------------------------------------------------------- welcome */
.home-inner{max-width:1080px;margin:0 auto;padding:52px 32px 72px}
.hero{text-align:center;display:flex;flex-direction:column;align-items:center}
.eyebrow{display:inline-flex;gap:8px;align-items:center;font-size:12px;font-weight:600;color:var(--accent-ink);background:var(--accent-bg);padding:4px 12px;border-radius:999px}
.hero h1{font-size:34px;line-height:1.18;letter-spacing:-.015em;margin:18px 0 12px;max-width:760px;font-weight:650;text-wrap:balance}
.hero .lead{font-size:15.5px;line-height:1.6;color:var(--dim);max-width:640px;margin:0 0 30px;text-wrap:pretty}

.dropzone{width:100%;max-width:640px;border:2px dashed var(--line-strong);border-radius:14px;background:var(--panel);padding:30px 24px 26px;display:flex;flex-direction:column;align-items:center;gap:12px;transition:border-color .15s}
body.dragging .dropzone{border-color:var(--accent);background:var(--accent-bg)}
.dz-icon{width:48px;height:48px;border-radius:12px;background:var(--accent-bg);color:var(--accent);display:grid;place-items:center}
button.xl{font-size:15px;padding:12px 30px;border-radius:8px;display:inline-flex;gap:10px;align-items:center;box-shadow:0 6px 18px rgba(47,111,235,.28)}
.dz-hint{color:var(--dim);font-size:13px}
.dz-sub{color:var(--faint);font-size:12px;max-width:460px;line-height:1.5}

.jobs{width:100%;max-width:640px;display:flex;flex-direction:column;gap:12px;margin-top:16px;text-align:left}
.jobs:empty{display:none}
.job{border:1px solid var(--line);border-radius:12px;background:var(--panel);padding:16px 18px;box-shadow:var(--shadow)}
.job-head{display:flex;align-items:center;gap:12px}
.job-icon{flex:0 0 36px;height:36px;border-radius:9px;background:var(--accent-bg);color:var(--accent);display:grid;place-items:center}
.job.is-done .job-icon{background:var(--ok-bg);color:var(--ok)}
.job.is-failed .job-icon{background:var(--warn-chip);color:var(--warn)}
.job-name{font-weight:600;font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.job-meta{color:var(--dim);font-size:12px}
.job-time{font-family:var(--mono);font-size:12px;color:var(--faint);white-space:nowrap}
.job-steps{display:flex;gap:6px;margin:14px 0 12px;flex-wrap:wrap}
.jstep{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--faint);padding:3px 10px 3px 8px;border-radius:999px;border:1px solid var(--line)}
.jstep .d{width:14px;height:14px;border-radius:50%;border:1.5px solid currentColor;display:grid;place-items:center;font-size:9px;line-height:1}
.jstep.done{color:var(--ok-ink);background:var(--ok-bg);border-color:transparent}
.jstep.done .d{background:var(--ok);border-color:var(--ok);color:#fff}
.jstep.now{color:var(--accent-ink);background:var(--accent-bg);border-color:var(--accent)}
.jstep.now .d{border-color:var(--accent);border-top-color:transparent;animation:spin .9s linear infinite}
.jstep.fail{color:var(--warn);background:var(--warn-chip);border-color:transparent}
.pbar{height:8px;border-radius:4px;background:var(--track);overflow:hidden}
.pbar i{display:block;height:100%;width:0;background:var(--accent);border-radius:4px;transition:width .5s ease}
.pbar.busy i{background-image:linear-gradient(45deg,rgba(255,255,255,.24) 25%,transparent 25%,transparent 50%,rgba(255,255,255,.24) 50%,rgba(255,255,255,.24) 75%,transparent 75%);background-size:16px 16px;animation:stripes 1s linear infinite}
.pbar.ok i{background:var(--ok)}
.pbar.fail i{background:var(--warn)}
.job-line{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-top:8px;font-size:12.5px;color:var(--dim)}
.job-line .pct{font-family:var(--mono);color:var(--ink);font-size:12px}
.job-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;justify-content:flex-end;align-items:center}
@keyframes stripes{to{background-position:16px 0}}
@keyframes spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion: reduce){.pbar.busy i,.jstep.now .d{animation:none}}

.steps{list-style:none;padding:0;margin:40px 0 0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;width:100%;text-align:left}
.steps li{display:flex;gap:12px;padding:16px;border:1px solid var(--line);border-radius:10px;background:var(--panel)}
.steps .n{flex:0 0 26px;height:26px;border-radius:50%;background:var(--accent-bg);color:var(--accent-ink);display:grid;place-items:center;font-weight:600;font-size:12.5px}
.steps h4{margin:2px 0 4px;font-size:13.5px}
.steps p{margin:0;color:var(--dim);font-size:12.5px;line-height:1.5}

.projects-sec{margin-top:60px}
.sec-head{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.sec-head h2{margin:0;font-size:18px;font-weight:650}
.sec-head .count{color:var(--faint);font-size:13px}
.sec-head input{max-width:240px}
.pcards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
.pc{border:1px solid var(--line);border-radius:12px;background:var(--panel);padding:16px 18px;display:flex;flex-direction:column;gap:10px;cursor:pointer;transition:border-color .15s,box-shadow .15s}
.pc:hover{border-color:var(--accent);box-shadow:var(--shadow)}
.pc.busy{cursor:default;opacity:.75}
.pc.busy:hover{border-color:var(--line);box-shadow:none}
.pc-top{display:flex;gap:10px;align-items:flex-start}
.pc-name{font-weight:600;font-size:15px;line-height:1.3}
.pc-addr{color:var(--dim);font-size:12.5px;margin-top:2px}
.pc-meta{color:var(--faint);font-size:12px}
.pc-prog .row{justify-content:space-between;font-size:12px;color:var(--dim)}
.pc-prog .bar{height:6px;border-radius:3px;margin-top:5px}
.pc-foot{display:flex;align-items:center;gap:8px;margin-top:2px;font-size:12px}
.empty{grid-column:1/-1;border:1px dashed var(--line-strong);border-radius:12px;padding:30px;text-align:center;color:var(--dim)}

@media (max-width: 760px){
  .home-inner{padding:32px 18px 48px}
  .hero h1{font-size:26px}
  .steps{grid-template-columns:1fr}
  .sec-head{flex-wrap:wrap}
  .sec-head input{max-width:none}
}

/* ---------------------------------------------------------------- project overview */
.project-inner{max-width:1400px;margin:0 auto;padding:22px 28px 48px;display:flex;flex-direction:column;gap:16px}
.backlink{background:none;border:0;color:var(--accent);padding:2px 0;font-weight:500;align-self:flex-start}
.backlink:hover{background:none;text-decoration:underline}
#pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:12px}
.pcard{border:1px solid var(--line);border-radius:6px;overflow:hidden;background:var(--panel);cursor:pointer}
.pcard.sel{border:2px solid var(--accent)}
.pcard img{display:block;width:100%;height:96px;object-fit:contain;background:#f8f9fb;border-bottom:1px solid var(--line)}
.pcard .pm{padding:7px 9px;font-size:11px}
.pcard select{margin-top:4px;padding:2px 4px;font-size:11px}
.stats{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px;font-size:11.5px}
.stats b{display:block;font-size:16px;font-weight:500;font-family:var(--mono)}

/* ---------------------------------------------------------------- workspace */
#work{display:flex;flex-direction:column}
#workbody{flex:1;display:flex;min-height:0;position:relative;overflow:hidden}
#rail{width:var(--rail-w,260px);flex:0 0 var(--rail-w,260px);background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0;font-size:12.5px}
#rail section{padding:10px 14px;border-bottom:1px solid var(--line2)}
.rail-panel{flex:1 1 0;min-height:0;overflow-y:auto;position:relative}
#toolsPanel{border-top:1px solid var(--line-strong)}
.rail-head{position:sticky;top:0;z-index:2;display:flex;align-items:center;gap:8px;padding:9px 14px 8px;background:var(--panel);border-bottom:1px solid var(--line2);font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--dim)}
.rail-head .ct{margin-left:auto;font-weight:500;text-transform:none;letter-spacing:0;color:var(--faint)}
.rail-body{padding:4px 14px 12px}
.pgroup{font-weight:600;font-size:11.5px;margin:10px 0 2px;text-transform:capitalize;color:var(--ink)}
/* element tools in the lower rail */
.tgroup{margin-top:10px}
.tgroup>.tg-title{font-size:11px;font-weight:600;color:var(--faint);text-transform:uppercase;letter-spacing:.06em;margin:0 0 4px}
.el{display:flex;align-items:center;gap:8px;width:100%;padding:5px 8px;margin:1px 0;border:1px solid transparent;border-radius:6px;background:transparent;text-align:left;font-size:12.5px;color:var(--ink)}
.el:hover{background:var(--hover)}
.el.on{background:var(--accent-bg);border-color:var(--accent);color:var(--accent-ink);font-weight:500}
.el .sw{width:16px;height:4px;border-radius:2px;flex:0 0 16px}
.el .dot{width:9px;height:9px;border-radius:50%;flex:0 0 9px;margin:0 3.5px}
.el .ic{width:18px;height:16px;flex:0 0 18px;display:grid;place-items:center;font-size:9px;font-weight:700;border-radius:3px;color:#fff}
.el .lb{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.el .n{font-size:11px;color:var(--faint);font-variant-numeric:tabular-nums}
.el .k{font-family:var(--mono);font-size:10px;color:var(--faint);border:1px solid var(--line);border-radius:3px;padding:0 4px;min-width:16px;text-align:center}
.el.on .k{border-color:var(--accent);color:var(--accent)}
.wallgrid{display:grid;grid-template-columns:1fr 1fr;gap:0 4px}
.wallgrid .el{padding:5px 6px}
/* process steps */
#stepbar{height:46px;flex:0 0 46px;display:flex;align-items:center;gap:2px;padding:0 12px;background:var(--panel);border-bottom:1px solid var(--line);overflow-x:auto;scrollbar-width:thin}
.step{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 12px 0 6px;border:1px solid transparent;border-radius:16px;background:transparent;color:var(--dim);white-space:nowrap;font-size:12.5px}
.step:hover{background:var(--hover);color:var(--ink)}
.step .num{width:20px;height:20px;border-radius:50%;display:grid;place-items:center;font-size:11px;font-weight:700;background:var(--line2);color:var(--dim);border:1px solid var(--line)}
.step .badge{font-size:10.5px;padding:0 6px;border-radius:8px;background:var(--line2);color:var(--dim);font-variant-numeric:tabular-nums}
.step.has .num{background:var(--ok-bg);color:var(--ok-ink);border-color:transparent}
.step.on{background:var(--accent-bg);border-color:var(--accent);color:var(--accent-ink);font-weight:600}
.step.on .num{background:var(--accent);color:#fff;border-color:var(--accent)}
.step.on .badge{background:var(--panel);color:var(--accent-ink)}
.step-sep{color:var(--faint);flex:0 0 auto;display:grid;place-items:center;width:14px}
#stepbar .grow{min-width:12px}
.step.log{border-color:var(--line);border-radius:6px;padding:0 10px}
.step-div{flex:0 0 1px;width:1px;height:22px;background:var(--line);margin:0 10px}
.step.result{padding:0 12px}
.step-group{flex:0 0 auto;font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--faint);margin:0 4px 0 0}
.lvl-head{display:flex;align-items:center;gap:6px;margin:8px 0 3px;font-size:12px;font-weight:600;color:var(--dim)}
.lvl-head .sm{padding:1px 7px;font-size:11px}
.step.result.has svg{color:var(--ok)}
.step.result.on svg{color:var(--accent)}
/* Frama's auto-detection toggle and comparison */
:root{--frama:#0891b2;--frama-bg:#e6f6fa}
:root[data-theme="dark"]{--frama:#2cc0dc;--frama-bg:#10262c}
.fcard{padding:10px 10px 10px 11px;border:1px solid var(--line);border-radius:10px;background:var(--panel2)}
.fcard.on{border-color:var(--frama);background:var(--frama-bg)}
.fc-head{display:flex;align-items:center;gap:10px}
.fcard .fi{flex:0 0 26px;height:26px;border-radius:7px;background:var(--frama);color:#fff;font-weight:800;font-size:13px;display:grid;place-items:center}
.fcard:not(.on) .fi{background:var(--line-strong)}
.fc-title{flex:1;min-width:0;display:flex;flex-direction:column;gap:1px;font-size:12.5px;font-weight:600;color:var(--ink);line-height:1.3}
.fc-sub{font-size:11px;font-weight:400;color:var(--dim)}
.switch{position:relative;flex:0 0 36px;width:36px;height:20px;padding:0;border:0;border-radius:10px;background:var(--line-strong);cursor:pointer;transition:background .15s}
.switch::after{content:"";position:absolute;top:3px;left:3px;width:14px;height:14px;border-radius:50%;background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.25);transition:left .15s}
.switch:hover{background:var(--line-strong);filter:brightness(1.08)}
.switch.on,.switch.on:hover{background:var(--frama)}
.switch.on::after{left:19px}
.fc-stats{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-top:10px}
.fc-stat{display:flex;align-items:baseline;justify-content:center;gap:5px;padding:5px 6px;border:1px solid var(--line);border-radius:7px;background:var(--panel);font-size:11.5px;color:var(--dim);white-space:nowrap}
.fc-stat:hover:not(:disabled){border-color:var(--line-strong);background:var(--panel)}
.fc-stat b{font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--ink)}
.fc-stat.sug b{color:var(--frama)}
.fc-stat.warn b{color:var(--warn)}
.fc-stat:disabled{opacity:.5}
.fc-stat:disabled b{color:var(--dim)}
.fcard:not(.on) .fc-stats{opacity:.6}
.cmp-row{display:flex;align-items:center;gap:8px;padding:4px 0;font-size:12px}
.cmp-row b{font-weight:600;min-width:18px;text-align:right}
.cmp-row button.sm{padding:1px 8px}
.st.sug{background:#0891b2;color:#fff}
/* tracing toolbar */
#center{container-type:inline-size}
.tb-group{display:flex;align-items:center;gap:1px;padding:2px;background:var(--panel2);border:1px solid var(--line);border-radius:8px;flex:0 0 auto}
.tb{height:28px;display:inline-flex;align-items:center;gap:6px;padding:0 9px;border:0;border-radius:6px;background:transparent;color:var(--dim);white-space:nowrap;font-size:12px}
.tb:hover{background:var(--hover);color:var(--ink)}
.tb.on{background:var(--panel);color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset;font-weight:500}
.tb:disabled{opacity:.35;background:transparent;color:var(--dim)}
.tb svg{flex:0 0 auto}
.tb .kk{font-family:var(--mono);font-size:10px;color:var(--faint)}
.tb.wide{min-width:52px;justify-content:center;font-variant-numeric:tabular-nums}
.tb-cap{font-size:10.5px;color:var(--faint);text-transform:uppercase;letter-spacing:.06em;margin:0 4px 0 6px;white-space:nowrap}
/* narrow drawing area: keep the Select / Auto-pick / Draw words, drop the rest to icons (tooltips keep the names) */
@container (max-width: 1080px){ .tb-cap,.tb .kk,[data-shape] .t,[data-auto] .t,[data-noop] .t,[data-act=note_text] .t,[data-act=note_arrow] .t,[data-act=layers] .t,[data-act=fit] .t,[data-act=scale] .t{display:none} .tb{padding:0 7px} [data-act=scale] b{max-width:104px!important} }
@container (max-width: 760px){ .tb .t{display:none} }
/* Match / Framing: the view controls shrink to icons before anything else */
@container (max-width: 1420px){ [data-act^=lay_] .t,.tb-cap{display:none} }
.menu label.chk{display:flex;align-items:center;gap:9px;padding:7px 10px;border-radius:6px;font-size:13px;cursor:pointer}
.menu label.chk:hover{background:var(--hover)}
.menu .mh{font-size:10.5px;color:var(--faint);text-transform:uppercase;letter-spacing:.06em;padding:6px 10px 2px}
.menu button.on{color:var(--accent);font-weight:600}
.menu button .r{margin-left:auto;font-family:var(--mono);font-size:11px;color:var(--faint)}
.note-edit{position:absolute;z-index:5;min-width:160px;min-height:34px;padding:5px 7px;font:12px/1.35 inherit;font-family:inherit;border:2px solid #e11d48;border-radius:5px;background:var(--panel);color:var(--ink);resize:both}
.prow2{display:flex;align-items:center;gap:8px;padding:5px 6px;margin:0 -6px;border-radius:4px;cursor:pointer;border-left:3px solid transparent}
.prow2:hover{background:var(--hover)}
.prow2.on{background:var(--accent-bg);border-left-color:var(--accent)}
.prow2 .pn{font-family:var(--mono);color:var(--dim);width:30px}
.prow2 .ct{margin-left:auto;font-size:11px;color:var(--dim)}
.sides{display:flex;gap:4px}
.sides button{flex:1;padding:5px 0}
.sides button.on{background:var(--accent-bg);border-color:var(--accent);color:var(--accent);font-weight:600}
.lrow{display:flex;align-items:center;gap:8px;padding:5px 0;border-top:1px solid var(--line2);font-size:12px;cursor:pointer}
.lrow:hover{background:var(--hover)}
.lrow.on{background:var(--accent-bg)}
.sw{width:12px;height:4px;border-radius:2px;flex:0 0 12px}
#center{flex:1;display:flex;flex-direction:column;min-width:0}
#tools{height:44px;display:flex;align-items:center;gap:6px;padding:0 12px;background:var(--panel);border-bottom:1px solid var(--line);font-size:12px;overflow-x:auto}
.tool{display:flex;align-items:center;gap:6px;padding:4px 10px;border-radius:4px;border:1px solid var(--line);background:var(--panel);cursor:pointer;white-space:nowrap}
.tool:hover{background:var(--hover)}
.tool.on{background:var(--accent-bg);border-color:var(--accent);color:var(--accent);font-weight:500}
.tool .k{color:var(--faint);font-size:10.5px;margin-left:2px}
.tool .sw{width:16px}
.vsep{width:1px;height:20px;background:var(--line);margin:0 4px;flex:0 0 1px}
#stage{flex:1;position:relative;overflow:hidden;background:var(--stage);display:flex}
.pane{position:relative;flex:1 1 0;min-width:0;min-height:0;overflow:hidden}
#cv,#cv2{display:block;width:100%;height:100%;cursor:crosshair}
#cv2{cursor:grab;touch-action:none}
/* Match step: elevation and plan views, side by side or stacked, either order */
#panePlan,#paneSplit,.pane-head{display:none}
#stage.split #panePlan{display:block}
#stage.split .pane-head{display:flex;align-items:center;gap:8px}
/* either view can be closed; the other then takes the whole stage */
#stage.split.no-main #paneMain,#stage.split.no-plan #panePlan,#stage.split.no-main #paneSplit,#stage.split.no-plan #paneSplit{display:none}
#stage.split.no-plan #paneMain{flex:1 1 0}
.pane-head .ph-text{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pane-head button{pointer-events:auto;flex:0 0 auto;border:1px solid var(--line);background:var(--panel);color:var(--dim);border-radius:5px;font-size:11.5px;line-height:1;padding:4px 8px}
.pane-head button:hover{color:var(--ink);border-color:var(--line-strong);background:var(--panel)}
.pane-head .pane-x{width:22px;height:22px;padding:0;display:grid;place-items:center;font-size:15px}
.pane-head .pane-btn{color:var(--accent-ink);border-color:var(--accent);background:var(--accent-bg);font-weight:600}
#stage.split #paneMain{flex:0 0 calc(var(--msplit, 50%) - 3px)}
#stage.split #paneSplit{display:block;flex:0 0 6px;background:var(--line-strong);cursor:col-resize;z-index:3;touch-action:none}
#stage.split #paneSplit:hover,#stage.split #paneSplit.drag{background:var(--accent)}
#stage.split[data-layout="tb"]{flex-direction:column}
#stage.split[data-layout="tb"] #paneSplit{cursor:row-resize}
#stage.split.swapped #panePlan{order:-2}
#stage.split.swapped #paneSplit{order:-1}
.pane-head{position:absolute;left:10px;top:10px;z-index:2;max-width:calc(100% - 20px);padding:4px 10px;border-radius:6px;background:var(--overlay);border:1px solid var(--line);font-size:11.5px;color:var(--dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;pointer-events:none}
.pane-head b{color:var(--ink);font-weight:600}
#stage.split #coach{top:46px}
#hud{position:absolute;left:12px;bottom:12px;padding:5px 9px;border-radius:5px;background:var(--overlay);border:1px solid var(--line);color:var(--dim);font-family:var(--mono);font-size:11px;pointer-events:none}
#coach{position:absolute;left:50%;top:12px;transform:translateX(-50%);padding:6px 12px;border-radius:6px;background:var(--overlay);border:1px solid var(--line);font-size:12px;pointer-events:none;max-width:70%}
#side{width:var(--side-w,330px);flex:0 0 var(--side-w,330px);background:var(--panel);border-left:1px solid var(--line);display:flex;flex-direction:column;min-height:0;overflow:hidden;font-size:12.5px}
.side-panel{min-height:0;position:relative}
#detailPanel{flex:0 0 var(--split,58%);overflow-y:auto;overflow-x:hidden}
#side .kv>div{min-width:0;overflow-wrap:anywhere}
.corner-box .lrow[data-leg]{cursor:pointer;padding:5px 4px}
.corner-box select{margin-top:4px}
/* floor system: joist callouts read off the structural sheets */
.callout{border:1px solid var(--line);border-radius:7px;padding:7px 9px;margin-top:6px;background:var(--panel)}
.callout.dim{opacity:.62}
.callout .row{flex-wrap:wrap;gap:6px}
/* framing: which walls to frame */
.fw-list{display:flex;flex-direction:column;gap:4px;max-height:320px;overflow-y:auto}
.fw-row{display:flex;align-items:flex-start;gap:8px;padding:6px 8px;border:1px solid var(--line);border-radius:7px;cursor:pointer;background:var(--panel)}
.fw-row:hover{border-color:var(--line-strong)}
.fw-row.on{border-color:var(--accent);background:var(--accent-bg)}
.fw-row input{width:auto;margin-top:2px;flex:0 0 auto}
.fw-row .sw{margin-top:6px;flex:0 0 16px}
.fw-main{display:flex;flex-direction:column;gap:3px;min-width:0}
.fw-sub{display:flex;flex-wrap:wrap;gap:4px 6px;align-items:center}
.rule input[type=text]{width:auto;min-width:0}
.stock-row{display:flex;gap:8px;align-items:baseline;margin-top:4px;flex-wrap:wrap}
.stock-chip{display:inline-block;margin:0 6px 3px 0;padding:1px 7px;border-radius:9px;background:var(--line2);font-size:11.5px;font-variant-numeric:tabular-nums}
.plate-box .ph-used{display:flex;align-items:baseline;gap:8px;margin:6px 0 2px;flex-wrap:wrap}
.plate-box .ph-used .big{font-size:18px;font-weight:600}
.plate-box input{flex:1;min-width:0}
#side select.attention{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-bg)}
#side button.is-saved,#side button.is-saved:hover{opacity:1;background:var(--ok-bg);border-color:transparent;color:var(--ok-ink);filter:none;font-weight:600}
#listPanel{flex:1 1 0;display:flex;flex-direction:column;overflow:hidden}
#listBody{flex:1;min-height:0;overflow-y:auto;padding-bottom:10px}
.splitter{flex:0 0 8px;cursor:row-resize;background:var(--panel2);border-top:1px solid var(--line-strong);border-bottom:1px solid var(--line);position:relative;touch-action:none}
.splitter::after{content:"";position:absolute;left:50%;top:2px;width:34px;height:3px;margin-left:-17px;border-radius:2px;background:var(--line-strong)}
.splitter:hover::after,.splitter.drag::after,.splitter:focus-visible::after{background:var(--accent)}
.splitter:focus-visible{outline:none}
.list-tools{padding:7px 12px;border-bottom:1px solid var(--line2)}
.list-tools input{padding:4px 8px;font-size:12px}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:6px;overflow:hidden;flex:0 0 auto}
.seg button{border:0;border-radius:0;padding:2px 8px;font-size:11px;font-weight:500;text-transform:none;letter-spacing:0;background:transparent;color:var(--dim)}
.seg button+button{border-left:1px solid var(--line)}
.seg button.on{background:var(--accent-bg);color:var(--accent-ink);font-weight:600}
/* a two-choice control that reads as one: Left end | Right end */
.seg.seg-lg{display:flex;width:100%;margin-top:6px;border-radius:7px}
.seg.seg-lg button{flex:1;padding:7px 8px;font-size:12.5px;display:inline-flex;align-items:center;justify-content:center;gap:6px}
.seg.seg-lg button.on{box-shadow:inset 0 0 0 1px var(--accent)}
.seg .auto{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;padding:0 5px;border-radius:6px;background:var(--line2);color:var(--dim)}
.seg button.on .auto{background:var(--panel);color:var(--accent-ink)}
.egroup{border-bottom:1px solid var(--line2)}
.eg-head{display:flex;align-items:center;gap:6px;width:100%;border:0;border-radius:0;background:transparent;padding:7px 12px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--dim);text-align:left}
.eg-head:hover{background:var(--hover)}
.eg-head svg{flex:0 0 auto;transition:transform .12s}
.eg-head[aria-expanded=false] svg{transform:rotate(-90deg)}
.eg-head .gt{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.eg-head .n{font-weight:500;letter-spacing:0;color:var(--faint)}
.eg-head .gs{font-size:10.5px;font-weight:600;letter-spacing:0;padding:0 6px;border-radius:8px}
.gs.ok{background:var(--ok-bg);color:var(--ok-ink)}
.gs.warn{background:var(--warn-chip);color:var(--warn)}
.erow{display:flex;align-items:center;gap:8px;padding:5px 12px 5px 13px;font-size:12px;cursor:pointer;border-left:3px solid transparent}
.erow:hover{background:var(--hover)}
.erow:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
.erow.on{background:var(--accent-bg);border-left-color:var(--accent)}
.erow .sw{flex:0 0 auto}
.erow .em{font-family:var(--mono);white-space:nowrap;max-width:46%;overflow:hidden;text-overflow:ellipsis}
.erow .emeta{flex:1;min-width:0;color:var(--dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:11.5px}
.erow .pgc{font-family:var(--mono);font-size:10.5px;color:var(--faint);border:1px solid var(--line);border-radius:3px;padding:0 4px}
.erow button.sm{padding:0 6px;line-height:16px}
.st{width:16px;height:16px;border-radius:50%;display:grid;place-items:center;font-size:10px;font-weight:700;flex:0 0 16px}
.st.ok{background:var(--ok-bg);color:var(--ok-ink)}
.st.warn{background:var(--warn);color:var(--panel)}
.st.rej{background:var(--line2);color:var(--dim)}
.eg-empty{padding:2px 14px 9px}
/* details */
.checks{display:flex;flex-direction:column;gap:6px;margin-top:10px}
.check{display:flex;gap:8px;align-items:flex-start;padding:7px 9px;border-radius:6px;font-size:11.5px;line-height:1.45;border:1px solid var(--line);background:var(--panel2);color:var(--dim)}
.check .ci{flex:0 0 16px;height:16px;border-radius:50%;display:grid;place-items:center;font-size:10px;font-weight:700;margin-top:1px}
.check.warn{background:var(--warn-bg);border-color:var(--warn-line);color:var(--ink)}
.check.warn .ci{background:var(--warn);color:var(--panel)}
.check.ok .ci{background:var(--ok-bg);color:var(--ok-ink)}
.check.info .ci{background:var(--line2);color:var(--dim)}
.kv .big{font-size:14px;font-weight:600}
#side .actions{position:sticky;bottom:0;z-index:1;margin:12px -16px -12px;padding:10px 16px 12px;background:var(--panel);border-top:1px solid var(--line2)}
#side .empty-sel{text-align:center;padding:20px 22px}
.empty-sel .es-icon{width:36px;height:36px;margin:0 auto 8px;border-radius:50%;display:grid;place-items:center;background:var(--panel2);border:1px solid var(--line);color:var(--faint)}
#side .empty-sel h4{margin:0 0 4px;text-transform:none;letter-spacing:0;font-size:13px;color:var(--ink)}
/* side panels: drag the inner edge to resize, the tab to hide or show */
.vsplit{flex:0 0 6px;margin:0 -3px;position:relative;z-index:6;cursor:col-resize;touch-action:none;outline:none}
.vsplit::before{content:"";position:absolute;top:0;bottom:0;left:50%;width:2px;margin-left:-1px;background:transparent;transition:background .12s}
.vsplit:hover::before,.vsplit.drag::before,.vsplit:focus-visible::before{background:var(--accent)}
.vs-toggle{position:absolute;top:50%;left:50%;width:16px;height:46px;margin:-23px 0 0 -8px;padding:0;display:grid;place-items:center;border-radius:8px;border:1px solid var(--line-strong);background:var(--panel);color:var(--dim);font-size:13px;line-height:1;opacity:0;transition:opacity .12s;box-shadow:0 2px 6px rgba(15,23,42,.12)}
.vs-toggle:hover{color:var(--accent);border-color:var(--accent);background:var(--panel)}
.vsplit:hover .vs-toggle,.vsplit.drag .vs-toggle,.vs-toggle:focus-visible{opacity:1}
#workbody.rail-hidden #rail,#workbody.side-hidden #side{display:none}
#workbody.rail-hidden #railResize,#workbody.side-hidden #sideResize{flex:0 0 18px;margin:0;cursor:default;background:var(--panel)}
#workbody.rail-hidden #railResize{border-right:1px solid var(--line)}
#workbody.side-hidden #sideResize{border-left:1px solid var(--line)}
#workbody.rail-hidden #railResize::before,#workbody.side-hidden #sideResize::before{display:none}
#workbody.rail-hidden #railResize .vs-toggle,#workbody.side-hidden #sideResize .vs-toggle{opacity:1}

/* pages list */
.pg-list{padding:2px 10px 12px}
.pg-group{display:flex;align-items:center;gap:6px;margin:14px 4px 5px;font-size:10.5px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--faint)}
.pg-group:first-child{margin-top:8px}
.pg-count{font-weight:600;letter-spacing:0;padding:0 6px;border-radius:8px;background:var(--line2);color:var(--dim)}
.pg-row{display:flex;align-items:center;gap:10px;width:100%;margin:0 0 3px;padding:6px 8px;border:1px solid transparent;border-radius:8px;background:transparent;text-align:left;color:var(--ink)}
.pg-row:hover{background:var(--hover)}
.pg-row.on{background:var(--accent-bg);border-color:var(--accent);box-shadow:inset 3px 0 0 var(--accent)}
.pg-thumb{flex:0 0 42px;height:30px;border-radius:4px;overflow:hidden;background:#fff;border:1px solid var(--line)}
.pg-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.pg-thumb.none{background:var(--line2)}
.pg-thumb.none img{display:none}
.pg-row.on .pg-thumb{border-color:var(--accent)}
.pg-text{flex:1;min-width:0;display:flex;flex-direction:column;gap:1px}
.pg-top{display:flex;align-items:baseline;gap:6px;line-height:1.2}
.pg-num{font-family:var(--mono);font-size:10.5px;color:var(--faint)}
.pg-sheet{font-family:var(--mono);font-size:11px;font-weight:600;color:var(--dim)}
.pg-title{font-size:12.5px;line-height:1.3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pg-row.on .pg-num,.pg-row.on .pg-sheet{color:var(--accent-ink)}
.pg-row.on .pg-title{font-weight:600;color:var(--accent-ink)}
.pg-meta{flex:0 0 auto;font-size:10.5px;padding:1px 7px;border-radius:9px;background:var(--line2);color:var(--faint);font-variant-numeric:tabular-nums;white-space:nowrap}
.pg-meta.has{background:var(--ok-bg);color:var(--ok-ink)}
.pg-more{display:block;width:100%;margin:2px 0 0;padding:6px 8px;border:1px dashed var(--line-strong);border-radius:8px;background:transparent;color:var(--dim);font-size:12px;text-align:left}

/* review log drawer */
.drawer{position:absolute;top:0;right:0;bottom:0;width:var(--log-w,min(760px,72%));max-width:calc(100% - 40px);z-index:30;display:flex;flex-direction:column;min-height:0;background:var(--panel);border-left:1px solid var(--line-strong);box-shadow:-18px 0 40px rgba(15,23,42,.2);transform:translateX(calc(100% + 48px));transition:transform .22s ease;visibility:hidden}
.drawer.open{transform:none;visibility:visible}
.drawer.resizing{transition:none}
.drawer-edge{position:absolute;left:-4px;top:0;bottom:0;width:8px;cursor:col-resize;touch-action:none;z-index:2}
.drawer-edge:hover,.drawer-edge.drag{background:linear-gradient(90deg,transparent 3px,var(--accent) 3px,var(--accent) 5px,transparent 5px)}
.drawer-head{display:flex;align-items:center;gap:10px;padding:12px 16px 10px;border-bottom:1px solid var(--line)}
.drawer-title{font-size:15px;font-weight:600;margin-top:2px}
.drawer-filters{padding:10px 16px 0;margin:0}
.drawer-body{flex:1;min-height:0;overflow:auto;padding:8px 16px 16px}
.icon-btn{width:30px;height:30px;padding:0;display:grid;place-items:center;font-size:19px;line-height:1;border-radius:6px}

/* review log window */
#logPage{overflow:auto;background:var(--bg)}
.log-inner{max-width:1240px;margin:0 auto;padding:26px 28px 56px}
.log-head{display:flex;align-items:flex-end;gap:12px;margin-bottom:14px}
.log-head h1{font-size:21px;margin:2px 0 4px}
.eyebrow-sm{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--accent)}
.log-filters{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap}
.log-filters input{flex:1 1 260px;width:auto}
.log-filters select{width:auto;min-width:140px}
.live{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--dim)}
.live i{width:7px;height:7px;border-radius:50%;background:var(--ok)}
table.tbl tr.ref{cursor:pointer}
table.tbl tr.ref:hover td{background:var(--hover)}
#side section{padding:12px 16px;border-bottom:1px solid var(--line2)}
#side h4{margin:0 0 8px;color:var(--dim);font-size:11px;text-transform:uppercase;letter-spacing:.06em;font-weight:600}
.kv{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 12px}
.kv .k{color:var(--faint);font-size:11px}
.box{padding:10px 12px;border:1px solid var(--line);border-radius:6px;background:var(--panel2);margin-top:10px}
.box.warn{background:var(--warn-bg);border-color:var(--warn-line)}
.log{font-size:11.5px;line-height:1.45}
.log div{display:flex;gap:10px;padding:5px 0;border-top:1px solid var(--line2)}
.log .t{font-family:var(--mono);color:var(--faint);flex:0 0 40px}
.flag{padding:8px 10px;margin-bottom:6px;border-radius:6px;border:1px solid var(--warn-line);background:var(--warn-bg);font-size:12px}
.flag.done{border-color:var(--line);background:var(--panel2);opacity:.7}
.flag .ch{display:flex;gap:4px;margin-top:6px;flex-wrap:wrap}
.rules{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.rule{display:flex;flex-direction:column;gap:4px;font-size:12px}
.rule span{color:var(--dim);font-size:11px}
table.tbl{width:100%;border-collapse:collapse;font-size:12px}
table.tbl th{text-align:left;color:var(--faint);font-weight:500;font-size:11px;padding:6px 8px;border-bottom:1px solid var(--line)}
table.tbl td{padding:6px 8px;border-bottom:1px solid var(--line2);vertical-align:top}
#logview{position:absolute;inset:0;background:var(--bg);padding:20px 28px;overflow:auto}
#drop{position:absolute;inset:0;display:none;place-items:center;background:color-mix(in srgb,var(--accent) 13%,transparent);border:3px dashed var(--accent);font-size:16px;font-weight:600;color:var(--accent);pointer-events:none;z-index:20}
body.dragging #drop{display:grid}
#toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:8px 14px;border-radius:6px;font-size:12.5px;opacity:0;transition:opacity .2s;pointer-events:none;z-index:30}
#toast.show{opacity:1}

/* ---------------------------------------------------------------- menus, dialogs, inline editing */
.kebab{width:28px;height:28px;margin:-4px -8px 0 0;flex:0 0 28px}
.menu{position:fixed;z-index:40;min-width:176px;padding:5px;background:var(--panel);border:1px solid var(--line);border-radius:9px;box-shadow:var(--shadow);display:flex;flex-direction:column}
.menu button{border:0;background:transparent;text-align:left;padding:7px 10px;border-radius:6px;font-size:13px;display:flex;align-items:center;gap:9px}
.menu button:hover,.menu button:focus-visible{background:var(--hover);outline:none}
.menu .danger-item{color:var(--warn)}
.menu-sep{height:1px;background:var(--line);margin:4px 2px}
.inline-edit{font:inherit;color:inherit;width:100%;padding:2px 6px;margin:-3px -7px;border:1px solid var(--accent);border-radius:6px;background:var(--panel);outline:none;box-shadow:0 0 0 3px var(--accent-bg)}
.modal-backdrop{position:fixed;inset:0;z-index:50;background:rgba(10,12,16,.5);display:grid;place-items:center;padding:20px}
.modal{width:100%;max-width:440px;background:var(--panel);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:20px 22px}
.modal h3{margin:0 0 10px;font-size:16px;font-weight:650}
.modal-body{font-size:13px;line-height:1.55;color:var(--ink)}
.modal-body p{margin:0 0 8px}
.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}
button.danger-solid{background:var(--warn);border-color:var(--warn);color:var(--panel);font-weight:600}
button.danger-solid:hover{background:var(--warn);filter:brightness(1.08)}