/* Layout: three-step working column; wall previews at true 2.33:1, prompt panel sticky at bottom of flow */
:root{
  --bg:#efedea; --surface:#f8f7f5; --ink:#24221f; --muted:#6b665f; --line:#d9d5ce;
  --brass:#9a7330; --brass-ink:#fff; --sel:#24221f;
  --f-ui:"Archivo",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#1b1a18;--surface:#242320;--ink:#ece8e1;--muted:#a39d93;--line:#3a3833;--brass:#c9a35a;--brass-ink:#1b1a18;--sel:#ece8e1;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#1b1a18;--surface:#242320;--ink:#ece8e1;--muted:#a39d93;--line:#3a3833;--brass:#c9a35a;--brass-ink:#1b1a18;--sel:#ece8e1;color-scheme:dark}
body{background:var(--bg);color:var(--ink);font-family:var(--f-ui);font-size:15px;line-height:1.5}
.wrap{max-width:1180px;margin:0 auto;padding-inline:20px;padding-block:28px 48px;display:grid;gap:36px}
header{display:grid;gap:6px}
h1{font-size:28px;font-weight:700;letter-spacing:-.01em;margin:0;text-wrap:balance}
.sub{color:var(--muted);margin:0;max-width:68ch}
.spec-line{font-family:var(--f-mono);font-size:12px;color:var(--muted);letter-spacing:.02em}
section{display:grid;gap:14px}
h2{font-size:13px;text-transform:uppercase;letter-spacing:.09em;margin:0;display:flex;gap:10px;align-items:baseline;font-weight:600}
h2 .n{font-family:var(--f-mono);color:var(--brass)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.card{all:unset;cursor:pointer;display:grid;gap:8px;padding:8px;border:1px solid var(--line);border-radius:6px;background:var(--surface);min-width:0}
.card img{width:100%;aspect-ratio:672/288;display:block;border-radius:3px;max-width:100%}
.card .t{display:flex;gap:8px;font-size:13px;font-weight:500;align-items:baseline}
.card .id{font-family:var(--f-mono);color:var(--muted);font-size:12px}
.card[aria-pressed="true"]{border-color:var(--sel);box-shadow:inset 0 0 0 1px var(--sel)}
.card:focus-visible,.chip:focus-visible,button:focus-visible{outline:2px solid var(--brass);outline-offset:2px}
.chips{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.sw{height:64px;border-radius:3px;position:relative;overflow:hidden;border:1px solid var(--line)}
.sw .trim{position:absolute;left:0;right:0;bottom:0;height:10px}
.sw .art{position:absolute;top:12px;width:18px;height:24px;border:2px solid var(--frame,#222);box-shadow:inset 0 0 0 3px #f4f1ea}
.sw .met{position:absolute;top:18px;width:7px;height:16px;border-radius:2px}
.sw[data-tex="brick"]{background-image:linear-gradient(rgba(255,255,255,.18) 2px,transparent 2px),linear-gradient(90deg,rgba(255,255,255,.18) 2px,transparent 2px);background-size:24px 10px,24px 20px}
.sw[data-tex="wood"]{background-image:repeating-linear-gradient(90deg,rgba(0,0,0,.14) 0 2px,transparent 2px 22px)}
.sw[data-tex="beadboard"]{background-image:repeating-linear-gradient(90deg,rgba(0,0,0,.08) 0 1px,transparent 1px 7px)}
.sw[data-tex="panels"]{background-image:linear-gradient(transparent,transparent)}
.sw[data-tex="plaster"],.sw[data-tex="concrete"],.sw[data-tex="stone"]{background-image:radial-gradient(rgba(255,255,255,.12) 1px,transparent 1.5px),radial-gradient(rgba(0,0,0,.08) 1px,transparent 1.5px);background-size:9px 9px,13px 13px}
.sw[data-tex="stone"]{background-image:linear-gradient(rgba(0,0,0,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(0,0,0,.12) 1px,transparent 1px);background-size:50px 32px}
.sw[data-tex="grass"]{background-image:repeating-linear-gradient(0deg,rgba(0,0,0,.08) 0 1px,transparent 1px 3px)}
.chip{all:unset;cursor:pointer;padding:6px;border:1px solid var(--line);border-radius:6px;background:var(--surface);font-size:13px;display:grid;gap:6px;min-width:0}
.chip .nm{display:flex;gap:7px;align-items:baseline;padding:0 2px 2px}
.chip .id{font-family:var(--f-mono);font-size:11px;color:var(--muted)}
.chip[aria-pressed="true"]{border-color:var(--sel);box-shadow:inset 0 0 0 1px var(--sel)}
.custom{display:grid;gap:8px;padding-top:4px}
.cfield{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:500}
.cfield input[type=color]{width:36px;height:32px;padding:0;border:1px solid var(--line);border-radius:4px;background:var(--surface);cursor:pointer}
.cfield input[type=text]{width:92px;font-family:var(--f-mono);font-size:13px;padding:6px 8px;border:1px solid var(--line);border-radius:4px;background:var(--surface);color:var(--ink)}
.cfield input[type=text][aria-invalid=true]{border-color:#c0392b}
.finish-desc{font-size:13px;color:var(--muted);max-width:75ch}
.out{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);gap:20px;align-items:start}
@media (max-width:820px){.out{grid-template-columns:1fr}}
.pane{background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:16px;display:grid;grid-template-columns:minmax(0,1fr);gap:12px;min-width:0}
.pane img{width:100%;border-radius:3px;display:block}
.label{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:600}
.filename{font-family:var(--f-mono);font-size:12px;word-break:break-all}
textarea{width:100%;box-sizing:border-box;min-height:300px;resize:vertical;font-family:var(--f-mono);font-size:12.5px;line-height:1.55;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:4px;padding:12px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
button.primary{all:unset;cursor:pointer;background:var(--brass);color:var(--brass-ink);font-weight:600;padding:10px 18px;border-radius:4px}
button.secondary{all:unset;cursor:pointer;border:1px solid var(--line);background:var(--bg);color:var(--ink);font-weight:600;padding:9px 16px;border-radius:4px}
a.ghost{color:var(--ink);font-size:13px;text-underline-offset:3px}
.status{font-size:13px;color:var(--muted)}
ol.steps{margin:0;padding-left:20px;display:grid;gap:4px;color:var(--muted);font-size:14px}
ol.steps b{color:var(--ink);font-weight:600}
.measure{font-family:var(--f-mono);font-size:12.5px;color:var(--muted);line-height:1.6}
@media (prefers-reduced-motion:no-preference){.card,.chip{transition:border-color .15s,background .15s}}

/* ---- app additions ---- */
.topbar{display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between}
.brand{display:flex;gap:14px;align-items:baseline;flex-wrap:wrap}
.brand h1{font-size:24px}
nav.tabs{display:flex;gap:4px}
nav.tabs a{color:var(--muted);text-decoration:none;font-size:14px;font-weight:600;padding:6px 10px;border-radius:4px}
nav.tabs a[aria-current="page"]{color:var(--ink);background:var(--surface);border:1px solid var(--line)}
.who{display:flex;gap:10px;align-items:center;font-size:13px;color:var(--muted)}
.signin{max-width:420px;display:grid;gap:12px}
.signin input{font:inherit;padding:10px 12px;border:1px solid var(--line);border-radius:4px;background:var(--bg);color:var(--ink)}
.err{color:#b3261e;font-size:13px}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .err{color:#ff8a80}}
:root[data-theme="dark"] .err{color:#ff8a80}
.jobs{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
.job{background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:10px;display:grid;gap:8px;min-width:0}
.job .ph{aspect-ratio:2688/960;border-radius:3px;background:var(--bg);display:grid;place-items:center;color:var(--muted);font-size:13px;overflow:hidden}
.job .ph img{width:100%;height:100%;object-fit:cover;display:block}
.job .meta{display:flex;flex-wrap:wrap;gap:6px 10px;align-items:baseline;font-size:13px}
.job .meta .id{font-family:var(--f-mono);font-size:12px;color:var(--muted)}
.pill{font-family:var(--f-mono);font-size:11.5px;padding:2px 8px;border-radius:999px;border:1px solid var(--line);white-space:nowrap}
.pill.good{background:#dff3e4;color:#1d5b2c;border-color:#b6dfc1}
.pill.ok{background:#fbefd5;color:#6b4a07;border-color:#efd59a}
.pill.bad{background:#fbe0dd;color:#7d1d14;border-color:#f0b9b2}
.pill.state{color:var(--muted)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .pill.good{background:#173b22;color:#a8e3b6;border-color:#24563a}:root:not([data-theme="light"]) .pill.ok{background:#3d300f;color:#f3d38a;border-color:#5c4917}:root:not([data-theme="light"]) .pill.bad{background:#46201c;color:#f6b1a8;border-color:#6b2f28}}
:root[data-theme="dark"] .pill.good{background:#173b22;color:#a8e3b6;border-color:#24563a}
:root[data-theme="dark"] .pill.ok{background:#3d300f;color:#f3d38a;border-color:#5c4917}
:root[data-theme="dark"] .pill.bad{background:#46201c;color:#f6b1a8;border-color:#6b2f28}
.job .acts{display:flex;flex-wrap:wrap;gap:8px}
.job .acts button{font-size:13px;padding:7px 12px}
.filters{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.filters select{font:inherit;font-size:14px;padding:7px 10px;border:1px solid var(--line);border-radius:4px;background:var(--surface);color:var(--ink)}
.empty{color:var(--muted);font-size:14px;padding:20px;border:1px dashed var(--line);border-radius:6px;text-align:center}
.gen-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.gen-row select{font:inherit;padding:8px 10px;border:1px solid var(--line);border-radius:4px;background:var(--surface);color:var(--ink)}
.spin{display:inline-block;width:14px;height:14px;border:2px solid var(--line);border-top-color:var(--brass);border-radius:50%;animation:sp 1s linear infinite;vertical-align:-2px;margin-right:6px}
@keyframes sp{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.spin{animation:none}}

[hidden]{display:none!important}
img{max-width:100%}
:root{padding:env(safe-area-inset-top,0px) 0 env(safe-area-inset-bottom,0px)}
.hint{margin:0;font-size:13px;color:var(--muted);line-height:1.5}
.pane.drop{outline:2px dashed var(--brass);outline-offset:-6px}
.ff-files{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.ff-files li{display:grid;gap:4px;font-size:13px}
.ff-files .nm{font-family:var(--f-mono);font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ff-files progress{width:100%;height:6px;accent-color:var(--brass)}
.ff-files .warn{color:#8a5a00;font-size:12.5px}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .ff-files .warn{color:#f3d38a}}
:root[data-theme="dark"] .ff-files .warn{color:#f3d38a}
button.ghost{all:unset;cursor:pointer;color:var(--ink);font-size:13px;text-decoration:underline;text-underline-offset:3px;padding:4px 2px}
button:disabled{opacity:.55;cursor:default}
dialog.fe{width:min(1240px,calc(100vw - 32px));max-height:calc(100vh - 32px);padding:0;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink);font-family:var(--f-ui)}
dialog.fe::backdrop{background:rgba(0,0,0,.55)}
.fe-head{position:sticky;top:0;z-index:1;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 16px;background:var(--surface);border-bottom:1px solid var(--line)}
.fe-head h3{margin:0;font-size:16px}
.fe-body{padding:16px;display:grid;gap:14px}
.fe-body canvas{width:100%;height:auto;display:block;border-radius:4px;touch-action:none;cursor:crosshair;background:var(--surface)}
.cfield input.fe-name{width:280px;max-width:60vw;font-family:var(--f-ui);font-size:14px;padding:8px 10px;border:1px solid var(--line);border-radius:4px;background:var(--surface);color:var(--ink);min-width:min(280px,100%)}
.fe-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px}
.fe-item{background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:10px;display:grid;gap:8px;font-size:13px;cursor:pointer}
.fe-item[aria-current=true]{border-color:var(--brass);box-shadow:0 0 0 1px var(--brass)}
.fe-item select{font:inherit;font-size:13px;padding:6px 8px;border:1px solid var(--line);border-radius:4px;background:var(--bg);color:var(--ink)}
.fe-item button.secondary{font-size:13px;padding:6px 12px}
.job .acts .ghost{font-size:13px}
.card.new-layout{display:grid;place-items:center;align-content:center;gap:6px;min-height:120px;border:1px dashed var(--line);background:transparent}
.card.new-layout .plus{font-size:30px;line-height:1;color:var(--brass)}
.lc-drop{border:1px dashed var(--line);border-radius:6px;padding:16px;background:var(--surface)}
.lc-drop.drop{outline:2px dashed var(--brass);outline-offset:-6px}
.lc-cols{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:16px;margin-top:6px}
@media (max-width:820px){.lc-cols{grid-template-columns:1fr}}
.lc-listing{list-style:none;margin:6px 0 0;padding:0;display:grid;gap:8px}
.lc-listing li{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:8px 10px}
.lc-top{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.lc-photo{margin:0;max-width:320px}.lc-photo img{width:100%;border-radius:4px;display:block}
.lc-analyzing{font-size:14px}
#lc-canvas{width:100%;height:auto;display:block;border-radius:4px;touch-action:none;cursor:grab;background:var(--surface)}
.lc-warn ul{margin:0 0 8px;padding-left:18px;font-size:13px;color:#8a5a00}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .lc-warn ul{color:#f3d38a}}
:root[data-theme="dark"] .lc-warn ul{color:#f3d38a}
.lc-els{display:grid;gap:8px;max-height:520px;overflow:auto;padding-right:4px}
.lc-el{background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:8px 10px;display:grid;gap:6px;font-size:13px}
.lc-el[aria-current=true]{border-color:var(--brass);box-shadow:0 0 0 1px var(--brass)}
.lc-fields{display:flex;flex-wrap:wrap;gap:6px 12px;align-items:end}
.lc-num{display:grid;gap:2px;font-size:12px;color:var(--muted);position:relative}
.lc-num input[type=number]{width:84px;font:inherit;font-family:var(--f-mono);font-size:13px;padding:5px 22px 5px 7px;border:1px solid var(--line);border-radius:4px;background:var(--bg);color:var(--ink)}
.lc-num i{position:absolute;right:7px;bottom:7px;font-style:normal;font-size:11px}
.lc-num.wide{width:100%}
.lc-num.wide input,.lc-num.wide textarea,#lc-spec{width:100%;box-sizing:border-box;font:inherit;font-size:13px;padding:6px 8px;border:1px solid var(--line);border-radius:4px;background:var(--bg);color:var(--ink)}
#lc-spec{min-height:140px;resize:vertical;line-height:1.5}
.lc-finish{display:grid;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:12px}
.pill.added{background:#dde9f7;color:#1d4a7a;border-color:#b5cdea}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .pill.added{background:#1a2f47;color:#a9cbf0;border-color:#2c4a6e}}
:root[data-theme="dark"] .pill.added{background:#1a2f47;color:#a9cbf0;border-color:#2c4a6e}
.prev-wrap{position:relative;min-width:0;width:100%}
.prev-wrap img{width:100%;display:block}
.cp-overlay{position:absolute;inset:0}
.cp-frame{all:unset;position:absolute;box-sizing:border-box;cursor:pointer;border:2px dashed #e0b862;background:rgba(36,34,31,.35) center/cover no-repeat;display:grid;place-items:start;border-radius:2px}
.cp-frame.round{border-radius:50%;place-items:center}
.cp-frame span{font:600 11px/1 var(--f-ui);background:#e0b862;color:#24221f;padding:2px 4px;border-radius:2px}
.cp-frame.set{border-style:solid;background-color:#f4f2ed}
.cp-frame:hover,.cp-frame:focus-visible{outline:2px solid #e0b862;outline-offset:1px}
.frames-hint{border-left:3px solid var(--brass);padding-left:10px}
.cp{background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:10px 12px}
.cp>summary{cursor:pointer;font-weight:600;font-size:14px}
.cp[open]{display:grid;gap:10px}
.cp-list{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.cp-list li{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px}
.cp-n{font:600 11px/1 var(--f-ui);background:#e0b862;color:#24221f;padding:3px 6px;border-radius:2px}
.cp-list .nm{max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-family:var(--f-mono);font-size:12px}
.cp-list select{font:inherit;font-size:12.5px;padding:4px 6px;border:1px solid var(--line);border-radius:4px;background:var(--surface);color:var(--ink)}
.ff-blend{border-top:1px solid var(--line);padding-top:8px;font-size:13px}
.ff-blend .steps{margin:0}
.cp .cfield{flex-wrap:wrap}.cp .cfield input.fe-name{width:100%;max-width:280px;min-width:0}