/* The notebook library owns its complete palette; theme text never leaks onto paper. */
.iso-lib-home,.iso-cover-dialog{--lib-ink:#203b48;--lib-muted:#617782;--lib-line:#d8e1e3;--lib-surface:#fff;--lib-ground:#f1f4f2;--lib-soft:#e7eeec;--lib-accent:#146f73;--lib-hover:#e6f0ee;--lib-shadow:#1d3c4a12;color:var(--lib-ink);color-scheme:light}
:is(html,body)[data-qps-theme=dark] :is(.iso-lib-home,.iso-cover-dialog),:is(html,body)[data-theme=dark] :is(.iso-lib-home,.iso-cover-dialog){--lib-ink:#edf4f5;--lib-muted:#afc1c8;--lib-line:#374c56;--lib-surface:#20313b;--lib-ground:#17252d;--lib-soft:#2a3e48;--lib-accent:#8cddd5;--lib-hover:#304b52;--lib-shadow:#0004;color-scheme:dark}
#qps-isometrics .iso-lib-home{background-color:var(--lib-ground);background-image:radial-gradient(ellipse at 0 0,var(--lib-soft),transparent 65%);color:var(--lib-ink);scrollbar-color:var(--lib-muted) transparent}
.iso-lib-inner{max-width:1500px;padding:40px 52px 90px;margin:0 auto}
.iso-lib-home h1,.iso-lib-home h2,.iso-lib-home h3,.iso-lib-home p,.iso-lib-home strong,.iso-cover-dialog h2,.iso-cover-dialog label{color:inherit}
.iso-lib-home button,.iso-cover-dialog button{font:inherit}
#qps-isometrics .iso-lib-home button:where(:not(.iso-lib-book-open):not(.iso-lib-page-open):not(.iso-lib-add)){color:var(--lib-ink);background:var(--lib-surface);border:1px solid var(--lib-line);border-radius:9px;min-height:40px;padding:9px 14px;box-shadow:none}
#qps-isometrics .iso-lib-home button:where(:not(.iso-lib-book-open):not(.iso-lib-page-open):not(.iso-lib-add)):hover{background:var(--lib-hover);border-color:var(--lib-accent)}
#qps-isometrics .iso-lib-home button.iso-primary,.iso-cover-dialog button.iso-primary{color:#fff;background:#147a78;border-color:#147a78;box-shadow:0 3px 8px #145a6415}
#qps-isometrics .iso-lib-home button.iso-primary:hover,.iso-cover-dialog button.iso-primary:hover{color:#fff;background:#106965;border-color:#106965}
.iso-lib-home :is(button,input):focus-visible,.iso-cover-dialog :is(button,input):focus-visible{outline:3px solid #37aaa6;outline-offset:4px}
.iso-lib-eyebrow{display:block;color:var(--lib-accent);font-size:10px;font-weight:750;letter-spacing:1.7px;line-height:1.5}
.iso-lib-shelf-heading{display:flex;align-items:center;justify-content:space-between;gap:32px;margin:0 0 38px}
.iso-lib-heading-copy{min-width:0;flex:1}
.iso-lib-heading-copy h1{font-size:clamp(27px,3vw,40px);font-weight:720;letter-spacing:-1.4px;line-height:1.15;margin:12px 0 13px;overflow-wrap:anywhere;color:var(--lib-ink)}
.iso-lib-heading-copy h1>span{color:var(--lib-accent)}
.iso-lib-heading-copy p{font-size:13px;color:var(--lib-muted);line-height:1.65;margin:0;max-width:550px}
.iso-lib-heading-actions{display:flex;gap:8px;align-items:center;justify-content:flex-end;flex-wrap:wrap;max-width:350px}
.iso-lib-heading-actions button{font-size:12px!important;white-space:nowrap}
.iso-lib-section-title{display:flex;align-items:center;justify-content:space-between;gap:15px;border-bottom:1px solid var(--lib-line);padding:0 0 15px;margin:0 0 27px}
.iso-lib-section-title h2{display:flex;align-items:center;gap:10px;font-size:15px;letter-spacing:-.15px;font-weight:700;margin:0}
.iso-lib-section-title h2>span{display:inline-grid;place-items:center;min-width:24px;height:24px;padding:0 6px;background:var(--lib-soft);color:var(--lib-muted);border-radius:7px;font-size:11px}
.iso-lib-section-title>span{font-size:11px;color:var(--lib-muted);text-align:right}
.iso-lib-shelf{display:grid;grid-template-columns:repeat(auto-fill,minmax(245px,1fr));gap:32px 36px;align-items:start}
.iso-lib-book{min-width:0;max-width:360px}
#qps-isometrics button.iso-lib-book-open{padding:0;border:0;background:transparent;display:block;width:100%;text-align:left;color:var(--lib-ink);white-space:normal;border-radius:8px;box-shadow:none}
.iso-lib-book-shell{--cover:#203f5b;--cover-dark:#132b40;--cover-bright:#4e708c;--cover-ink:#f7f2e9;position:relative;aspect-ratio:.85;width:100%;padding:0 8px 8px 0;isolation:isolate;transition:transform .2s,filter .2s;filter:drop-shadow(0 10px 8px #1a304625)}
.iso-lib-book-shell[data-cover-theme=slate],.iso-cover-colors [data-cover-theme=slate]{--cover:#3e4c55;--cover-dark:#26333b;--cover-bright:#6e7e85;--cover-ink:#f4f2e9}
.iso-lib-book-shell[data-cover-theme=forest],.iso-cover-colors [data-cover-theme=forest]{--cover:#285b50;--cover-dark:#153f35;--cover-bright:#568172;--cover-ink:#f6f2df}
.iso-lib-book-shell[data-cover-theme=burgundy],.iso-cover-colors [data-cover-theme=burgundy]{--cover:#783b45;--cover-dark:#4a222e;--cover-bright:#a5686e;--cover-ink:#fff0e2}
.iso-lib-book-shell[data-cover-theme=sand],.iso-cover-colors [data-cover-theme=sand]{--cover:#b39362;--cover-dark:#785d37;--cover-bright:#cfb785;--cover-ink:#231c14}
.iso-lib-book-shell[data-cover-theme=plum],.iso-cover-colors [data-cover-theme=plum]{--cover:#655073;--cover-dark:#3e2d4b;--cover-bright:#947ca0;--cover-ink:#faf0f7}
.iso-lib-book-open:hover .iso-lib-book-shell{transform:translateY(-5px) rotate(-.5deg);filter:drop-shadow(0 15px 10px #1a30462b)}
.iso-lib-book-pages{position:absolute;inset:10px 0 0 16px;border-radius:4px 10px 10px 4px;background:repeating-linear-gradient(0deg,#d8d6cd 0,#d8d6cd 1px,#f4f1e7 1px,#f4f1e7 3px);border:1px solid #c9c6bc;box-shadow:3px 3px 0 #10212f15}
.iso-lib-book-face{position:relative;height:100%;width:100%;border-radius:5px 10px 10px 5px;background:linear-gradient(110deg,#ffffff07,transparent 50%),var(--cover);color:var(--cover-ink);display:flex;flex-direction:column;overflow:hidden;padding:27px 32px 30px 38px;border:1px solid var(--cover-dark);box-shadow:inset 1px 0 0 #ffffff30,inset -1px 0 1px #ffffff18,inset 0 -2px 0 #0003}
.iso-lib-book-face::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent 0,transparent 2px,#fff 2px,#fff 3px),repeating-linear-gradient(90deg,transparent 0,transparent 2px,#000 2px,#000 3px);opacity:.035;pointer-events:none}
.iso-lib-book-shell[data-cover-style=leather] .iso-lib-book-face::before{inset:10px 10px 10px 23px;background:none;opacity:.3;border:1px dashed var(--cover-ink);border-radius:4px}
.iso-lib-book-spine{position:absolute;inset:0 auto 0 0;width:20px;background:linear-gradient(90deg,#0002,transparent 45%,#0003 92%,#ffffff24 95%,transparent);border-right:1px solid #0002;pointer-events:none;z-index:2}
.iso-lib-book-series{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:5px;font-size:7px;line-height:1.3;letter-spacing:1.6px;font-weight:650;color:var(--cover-ink)}
.iso-lib-book-series>span{font-size:6px;letter-spacing:1px;opacity:.8;white-space:nowrap}
.iso-lib-cover-mark{position:relative;z-index:2;display:flex;align-items:center;justify-content:center;gap:11px;margin:auto 0;min-height:92px;opacity:.72}
.iso-lib-cover-mark svg{width:35px;height:35px;flex:none}
.iso-lib-cover-mark span{font-size:9px;line-height:1.65;letter-spacing:3px;font-weight:550}
.iso-lib-cover-blueprint{position:relative;width:100%;flex:1;min-height:50px;max-height:150px;margin:7px 0 0;opacity:.72;color:var(--cover-ink)}
.iso-lib-book-label{position:relative;z-index:2;margin-top:auto;display:flex;flex-direction:column;gap:10px;min-width:0;text-shadow:0 1px 1px #0002}
.iso-lib-label-kicker{font-size:9px;line-height:1.5;letter-spacing:.25px;opacity:.86;overflow-wrap:anywhere;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.iso-lib-book-label>strong{font-size:clamp(20px,2vw,27px);font-weight:650;line-height:1.15;letter-spacing:-.7px;overflow-wrap:anywhere;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;color:var(--cover-ink)}
.iso-lib-label-rule{height:1px;width:33px;background:currentColor;opacity:.5;margin:4px 0}
.iso-lib-book-count{font-size:8px;letter-spacing:1.7px;opacity:.8}
.iso-lib-book-elastic{position:absolute;inset:0 15px 0 auto;width:8px;background:linear-gradient(90deg,var(--cover-dark),var(--cover),var(--cover-dark));box-shadow:-1px 0 1px #0003,1px 0 1px #fff2;border-inline:1px solid #0003;z-index:3}
.iso-lib-cover-image{position:absolute;inset:0;object-fit:cover;width:100%;height:100%;opacity:.85}
.iso-lib-image-shade{position:absolute;inset:0;background:linear-gradient(180deg,#06131d78,transparent 40%,#06131dba);z-index:1}
.iso-lib-book-face:has(.iso-lib-cover-image){--cover-ink:#fff}
.iso-lib-book-face:has(.iso-lib-cover-image) .iso-lib-cover-mark{opacity:0}
.iso-lib-book-caption{display:grid;gap:6px;padding:18px 1px 0}
.iso-lib-book-caption>strong{font-size:14px;line-height:1.35;font-weight:700;overflow-wrap:anywhere;color:var(--lib-ink)}
.iso-lib-book-caption>span{font-size:11px;color:var(--lib-muted);line-height:1.5}
.iso-lib-book-caption b{font-size:10px;color:var(--lib-accent);font-weight:600}
.iso-lib-book-footer{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:9px}
.iso-lib-book-footer small{font-size:9px;line-height:1.4;color:var(--lib-muted)}
#qps-isometrics .iso-lib-book-footer button{padding:5px 0 5px 9px!important;border:0!important;background:transparent!important;color:var(--lib-accent)!important;font-size:10px;white-space:nowrap;min-height:32px!important}
#qps-isometrics button.iso-lib-add{border:1px dashed var(--lib-line);background:transparent;border-radius:9px;aspect-ratio:.85;max-width:360px;padding:25px;color:var(--lib-ink);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:15px;text-align:center;white-space:normal;box-shadow:none}
#qps-isometrics button.iso-lib-add:hover{background:var(--lib-hover);border-color:var(--lib-accent)}
.iso-lib-add-glyph{font-size:32px;font-weight:300;display:grid;place-items:center;width:50px;height:50px;border:1px solid var(--lib-line);border-radius:50%;color:var(--lib-accent)}
.iso-lib-add>strong{font-size:13px;line-height:1.4;max-width:175px}
.iso-lib-add>small{font-size:11px;line-height:1.5;color:var(--lib-muted)}
.iso-lib-breadcrumb{display:flex;align-items:center;gap:10px;margin:-8px 0 25px;font-size:11px;min-width:0;color:var(--lib-muted)}
.iso-lib-breadcrumb>span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#qps-isometrics .iso-lib-breadcrumb button{padding:0!important;border:0!important;background:transparent!important;color:var(--lib-accent)!important;font-size:11px;min-height:32px!important;white-space:nowrap}
.iso-lib-notebook-heading{display:flex;align-items:center;gap:27px;padding-bottom:27px;margin-bottom:22px}
.iso-lib-mini-wrap{width:106px;flex:none;pointer-events:none}
.iso-lib-book-mini .iso-lib-book-face{padding:10px 14px 13px 17px;border-radius:3px 5px 5px 3px}
.iso-lib-book-mini .iso-lib-book-spine{width:9px}
.iso-lib-book-mini .iso-lib-book-elastic{right:6px;width:4px}
.iso-lib-book-mini .iso-lib-book-label{gap:5px}
.iso-lib-book-mini .iso-lib-label-kicker,.iso-lib-book-mini .iso-lib-book-series,.iso-lib-book-mini .iso-lib-book-count{font-size:4px;letter-spacing:.6px}
.iso-lib-book-mini .iso-lib-book-series>span{display:none}
.iso-lib-book-mini .iso-lib-book-label>strong{font-size:10px;letter-spacing:-.15px;-webkit-line-clamp:3}
.iso-lib-book-mini .iso-lib-cover-mark{min-height:24px;margin:auto}
.iso-lib-book-mini .iso-lib-cover-mark svg{width:19px;height:19px}.iso-lib-book-mini .iso-lib-cover-mark span{display:none}
.iso-lib-book-mini .iso-lib-label-rule{margin:0;width:15px}.iso-lib-book-mini .iso-lib-book-pages{inset:6px 3px 3px 10px}
.iso-lib-notebook-heading h1{font-size:clamp(25px,2.8vw,35px)}
.iso-lib-book-meta{display:flex;flex-wrap:wrap;gap:9px 17px;font-size:10px;color:var(--lib-muted);margin-top:15px}
.iso-lib-book-meta>span:first-child{font-weight:700;color:var(--lib-accent)}
.iso-lib-page-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:24px;align-items:stretch}
.iso-lib-home .iso-lib-page{background:var(--lib-surface);border:1px solid var(--lib-line);border-radius:10px;overflow:hidden;box-shadow:0 3px 0 -1px var(--lib-surface),0 4px 0 -1px var(--lib-line),0 7px 0 -2px var(--lib-surface),0 8px 0 -2px var(--lib-line),0 13px 25px var(--lib-shadow);display:flex;flex-direction:column;transition:transform .18s,border-color .18s}
.iso-lib-home .iso-lib-page:hover{transform:translateY(-3px);border-color:var(--lib-accent)}
#qps-isometrics button.iso-lib-page-open{background:transparent;color:var(--lib-ink);border:0;border-radius:0;padding:0;box-shadow:none;text-align:left;display:flex;flex-direction:column;align-items:stretch;justify-content:flex-start;flex:1;width:100%;white-space:normal}
.iso-lib-preview{position:relative;aspect-ratio:1.64;flex:none;width:100%;overflow:hidden;background:#e9eff2;border-bottom:1px solid var(--lib-line);color:#556d7b;isolation:isolate}
.iso-lib-preview::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,#18384907,transparent 25%);pointer-events:none}
.iso-lib-preview>img{display:block;width:100%;height:100%;object-fit:contain}
.iso-lib-preview-placeholder{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:13px;color:#526e80}
.iso-lib-preview-placeholder svg{width:35px;height:35px;opacity:.65}
.iso-lib-preview-placeholder>span{font-size:10px;line-height:1.4}
.iso-lib-page-number{position:absolute;top:13px;left:15px;font-size:10px;font-weight:700;letter-spacing:1.3px;color:#5b7380}
.iso-lib-revision{position:absolute;bottom:12px;right:12px;min-width:30px;padding:5px 7px;background:#fff;color:#365260;border:1px solid #d3dfe4;border-radius:5px;font-size:9px;font-weight:750;text-align:center}
.iso-lib-page-copy{padding:19px 20px 17px;display:flex;flex-direction:column;flex:1}
.iso-lib-page-kicker{color:var(--lib-muted);font-size:8px;font-weight:650;letter-spacing:1.5px}
.iso-lib-page-copy h2{font-size:17px;line-height:1.3;font-weight:700;letter-spacing:-.3px;margin:8px 0 9px;color:var(--lib-ink);overflow-wrap:anywhere}
.iso-lib-page-copy p{font-size:10px;color:var(--lib-muted);line-height:1.7;margin:0;overflow-wrap:anywhere}
.iso-lib-open-label{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:11px;font-weight:650;color:var(--lib-accent)!important;margin-top:auto;padding-top:20px}
.iso-lib-open-label>span{font-size:16px}
.iso-lib-page-actions{display:flex;justify-content:flex-end;gap:4px;border-top:1px solid var(--lib-line);padding:3px 12px}
#qps-isometrics .iso-lib-page-actions button{background:transparent;border:0;min-height:35px;padding:6px 8px;font-size:10px;color:var(--lib-muted)}
#qps-isometrics .iso-lib-page-actions button.iso-danger{color:#ac453c}
:is(html,body)[data-qps-theme=dark] #qps-isometrics .iso-lib-page-actions button.iso-danger,:is(html,body)[data-theme=dark] #qps-isometrics .iso-lib-page-actions button.iso-danger{color:#ffb0a3}
.iso-lib-presence{display:flex;align-items:center;gap:6px;flex-wrap:wrap;background:var(--lib-soft);border:1px solid var(--lib-line);border-radius:7px;padding:9px;margin-top:13px;font-size:10px;line-height:1.4;color:var(--lib-ink)}
.iso-lib-presence>span{width:6px;height:6px;background:#d6963e;border-radius:50%;flex:none}
.iso-lib-presence>b{font-size:8px;letter-spacing:.3px;color:var(--lib-muted);font-weight:600;margin-left:auto;white-space:nowrap}
#qps-isometrics .iso-lib-import{margin-top:32px;font-size:11px}
.iso-lib-empty{grid-column:1/-1;display:flex;align-items:center;flex-direction:column;text-align:center;padding:40px 20px;border:1px dashed var(--lib-line);border-radius:12px;background:var(--lib-surface);color:var(--lib-ink)}
.iso-lib-empty>svg{height:48px;width:48px;color:var(--lib-accent);margin:5px 0 12px}
.iso-lib-empty h2{font-size:23px;letter-spacing:-.5px;margin:12px 0}.iso-lib-empty p{font-size:13px;color:var(--lib-muted);line-height:1.65;max-width:420px;margin:0 0 22px}
/* Cover editor: controls use the same palette even when mounted outside the studio. */
.iso-cover-dialog{width:min(760px,calc(100vw - 24px));max-height:calc(100dvh - 32px);padding:27px;border:1px solid var(--lib-line);border-radius:15px;background:var(--lib-surface);color:var(--lib-ink);overflow:auto;overscroll-behavior:contain}
.iso-cover-dialog *{box-sizing:border-box}
.iso-cover-dialog-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:15px;margin-bottom:24px}
.iso-cover-dialog-heading h2{font-size:29px;font-weight:700;letter-spacing:-.8px;margin:7px 0 10px;color:var(--lib-ink)}
.iso-cover-dialog-heading p{font-size:12px;color:var(--lib-muted);line-height:1.5;margin:0;max-width:400px}
.iso-cover-dialog button{min-height:40px;padding:8px 12px;border:1px solid var(--lib-line);border-radius:8px;background:var(--lib-surface);color:var(--lib-ink);cursor:pointer}
.iso-cover-dialog button:hover{background:var(--lib-hover);border-color:var(--lib-accent)}
.iso-cover-dialog button:disabled{opacity:.55;cursor:default}
.iso-cover-dialog-heading>button{padding:0;min-width:34px;min-height:34px;font-size:23px;background:transparent}
.iso-cover-dialog-body{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1fr);gap:30px;align-items:start}
.iso-cover-preview{border:1px solid var(--lib-line);border-radius:10px;padding:28px 20px 15px;background:var(--lib-ground);position:sticky;top:0}
.iso-cover-preview .iso-lib-book-face{padding:22px 30px 23px 33px}
.iso-cover-preview .iso-lib-book-label>strong{font-size:22px}
.iso-cover-preview>small{display:block;text-align:center;font-size:10px;color:var(--lib-muted);margin-top:21px}
.iso-cover-fields>label{display:block;margin:0 0 16px}
.iso-cover-fields label>span,.iso-cover-fields legend{font-size:11px;font-weight:650;color:var(--lib-ink);margin:0 0 7px;display:block}
.iso-cover-fields small{font-size:10px;font-weight:400;color:var(--lib-muted);line-height:1.5}
.iso-cover-fields label small,.iso-cover-fields legend small{margin-left:5px}
.iso-cover-dialog input:not([type=file]){background:var(--lib-ground);border:1px solid var(--lib-line);border-radius:7px;color:var(--lib-ink);font:inherit;font-size:12px;padding:10px;width:100%;min-width:0}
.iso-cover-dialog input::placeholder{color:var(--lib-muted)}
.iso-cover-fields fieldset{border:0;padding:0;margin:0 0 18px;min-width:0}
.iso-cover-fields legend{padding:0;margin-bottom:9px}
.iso-cover-colors{display:flex;flex-wrap:wrap;gap:9px}
.iso-cover-colors button[data-cover-theme]{--cover:#203f5b;background:var(--cover);border:3px solid var(--lib-surface);box-shadow:0 0 0 1px var(--lib-line);border-radius:50%;width:31px;min-width:31px;height:31px;min-height:31px;padding:0;color:#fff;font-size:14px}
.iso-cover-colors button[data-cover-theme=slate]{--cover:#3e4c55}.iso-cover-colors button[data-cover-theme=forest]{--cover:#285b50}.iso-cover-colors button[data-cover-theme=burgundy]{--cover:#783b45}.iso-cover-colors button[data-cover-theme=sand]{--cover:#b39362}.iso-cover-colors button[data-cover-theme=plum]{--cover:#655073}
.iso-cover-colors button[aria-pressed=true]{box-shadow:0 0 0 2px var(--lib-accent)}
.iso-cover-colors button>span{visibility:hidden}.iso-cover-colors button[aria-pressed=true]>span{visibility:visible}
.iso-cover-styles{display:flex;gap:7px}.iso-cover-styles button{font-size:11px;min-height:36px;flex:1;padding:7px 8px}
.iso-cover-styles button[aria-pressed=true]{background:var(--lib-soft);border-color:var(--lib-accent);color:var(--lib-accent);box-shadow:inset 0 0 0 1px var(--lib-accent)}
.iso-cover-fields fieldset>p{font-size:11px;color:var(--lib-muted);line-height:1.55;margin:0 0 9px}
.iso-cover-image-actions{display:flex;align-items:center;flex-wrap:wrap;gap:7px;margin-bottom:8px}
.iso-cover-dialog .iso-cover-upload{margin:0;position:relative;display:inline-flex;min-height:36px;padding:8px 11px;align-items:center;border:1px solid var(--lib-line);border-radius:7px;background:var(--lib-surface);cursor:pointer}
.iso-cover-dialog .iso-cover-upload>span{margin:0;color:var(--lib-ink);font-size:11px;font-weight:500}
.iso-cover-upload input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}.iso-cover-upload:focus-within{outline:3px solid #37aaa6;outline-offset:3px}
.iso-cover-image-actions button{min-height:36px;font-size:10px;padding:6px 8px}.iso-cover-dialog [hidden]{display:none!important}
.iso-cover-dialog [data-cover-error]{color:#ae4239;margin:14px 0 0;font-size:12px;line-height:1.5;min-height:0}
:is(html,body)[data-qps-theme=dark] .iso-cover-dialog [data-cover-error],:is(html,body)[data-theme=dark] .iso-cover-dialog [data-cover-error]{color:#ffb0a3}
.iso-cover-dialog [data-cover-error]:empty{display:none}
.iso-cover-dialog-footer{border-top:1px solid var(--lib-line);margin-top:20px;padding-top:18px;display:flex;justify-content:flex-end;gap:9px}
.iso-cover-dialog-footer button{font-size:12px}
@media(min-width:1700px){.iso-lib-inner{padding-top:55px}.iso-lib-shelf{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:1100px){.iso-lib-inner{padding:30px 30px 70px}.iso-lib-shelf{gap:26px}.iso-lib-heading-actions{max-width:230px}.iso-lib-notebook-heading{gap:20px}.iso-lib-mini-wrap{width:85px}}
@media(max-width:800px){.iso-lib-inner{padding:26px 23px 65px}.iso-lib-shelf{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 24px}.iso-lib-page-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:23px 18px}.iso-lib-shelf-heading{align-items:flex-start;gap:22px}.iso-lib-heading-actions{max-width:160px}.iso-lib-heading-copy h1{font-size:29px}.iso-lib-heading-copy p{font-size:12px}.iso-lib-book-face{padding:22px 30px 25px 32px}.iso-lib-book-label>strong{font-size:24px}.iso-lib-book-series{font-size:6px}.iso-lib-cover-mark{min-height:68px}.iso-lib-notebook-heading{flex-wrap:wrap}.iso-lib-notebook-heading .iso-lib-heading-actions{max-width:none;flex:1 0 100%;justify-content:flex-start}.iso-lib-page-copy{padding:16px}.iso-lib-page-copy h2{font-size:16px}}
@media(max-width:540px){.iso-lib-inner{padding:22px 19px 55px}.iso-lib-shelf-heading{display:block;margin-bottom:28px}.iso-lib-shelf-heading .iso-lib-heading-actions{justify-content:flex-start;max-width:none;margin-top:20px}.iso-lib-shelf{grid-template-columns:repeat(2,minmax(0,1fr));gap:25px 17px}.iso-lib-heading-copy h1{font-size:28px}.iso-lib-eyebrow{font-size:8px;letter-spacing:1.2px}.iso-lib-section-title{margin-bottom:22px;padding-bottom:13px;gap:9px}.iso-lib-section-title h2{font-size:13px}.iso-lib-section-title>span{font-size:10px;max-width:170px}.iso-lib-book-face{padding:13px 20px 18px 23px;border-radius:3px 7px 7px 3px}.iso-lib-book-spine{width:13px}.iso-lib-book-elastic{right:9px;width:5px}.iso-lib-book-series{font-size:4px;letter-spacing:.9px}.iso-lib-book-series>span{font-size:4px;letter-spacing:.5px}.iso-lib-cover-mark{min-height:40px;gap:6px}.iso-lib-cover-mark svg{width:23px;height:23px}.iso-lib-cover-mark span{font-size:5px;letter-spacing:1.5px}.iso-lib-book-label{gap:6px}.iso-lib-label-kicker{font-size:6px;line-height:1.5}.iso-lib-book-label>strong{font-size:16px;letter-spacing:-.4px}.iso-lib-label-rule{width:22px;margin:2px 0}.iso-lib-book-count{font-size:5px;letter-spacing:1px}.iso-lib-cover-blueprint{max-height:70px;min-height:30px;margin:0}.iso-lib-book-caption{gap:4px;padding-top:13px}.iso-lib-book-caption>strong{font-size:12px}.iso-lib-book-caption>span{font-size:9px}.iso-lib-book-footer{display:block;margin-top:4px}.iso-lib-book-footer small{font-size:8px}#qps-isometrics .iso-lib-book-footer button{padding:5px 0!important;font-size:9px;display:block;min-height:30px!important}.iso-lib-book-shell[data-cover-style=leather] .iso-lib-book-face::before{inset:6px 6px 6px 16px}#qps-isometrics button.iso-lib-add{padding:15px;gap:11px}.iso-lib-add-glyph{width:38px;height:38px;font-size:26px}.iso-lib-add>strong{font-size:11px}.iso-lib-add>small{font-size:9px}.iso-lib-breadcrumb{margin-top:-4px;margin-bottom:16px}.iso-lib-notebook-heading{gap:16px;padding-bottom:20px;margin-bottom:12px}.iso-lib-notebook-heading .iso-lib-heading-copy h1{font-size:24px;margin-top:8px;letter-spacing:-.8px}.iso-lib-notebook-heading .iso-lib-heading-copy p{font-size:11px}.iso-lib-mini-wrap{width:77px}.iso-lib-book-meta{font-size:9px;gap:6px;margin-top:9px}.iso-lib-page-grid{grid-template-columns:1fr;gap:24px}.iso-lib-page-copy{padding:17px 20px}.iso-lib-page-copy h2{font-size:18px}.iso-lib-preview{aspect-ratio:1.85}.iso-lib-heading-actions button{font-size:11px!important;padding:8px 10px!important}.iso-cover-dialog{padding:20px;max-height:calc(100dvh - 24px)}.iso-cover-dialog-heading h2{font-size:26px}.iso-cover-dialog-body{grid-template-columns:1fr;gap:23px}.iso-cover-preview{position:static;display:flex;align-items:center;justify-content:center;padding:17px;gap:20px}.iso-cover-preview>[data-cover-preview]{width:130px;flex:none}.iso-cover-preview>small{max-width:70px;text-align:left;margin:0;line-height:1.6}.iso-cover-preview .iso-lib-book-face{padding:14px 20px 18px 23px}.iso-cover-preview .iso-lib-book-label>strong{font-size:15px}.iso-cover-dialog-heading{margin-bottom:20px}.iso-cover-dialog-heading p{font-size:11px}.iso-cover-fields label>span,.iso-cover-fields legend{font-size:12px}.iso-cover-dialog input:not([type=file]){font-size:16px}.iso-cover-colors{gap:14px}.iso-cover-colors button[data-cover-theme]{width:34px;height:34px;min-height:34px}.iso-cover-fields fieldset{margin-bottom:20px}}
@media(prefers-reduced-motion:reduce){.iso-lib-book-shell,.iso-lib-page{transition:none}.iso-lib-book-open:hover .iso-lib-book-shell,.iso-lib-home .iso-lib-page:hover{transform:none}}
/* Editing ownership remains visible above the canvas, including on phones. */
.iso-workspace>.iso-edit-status{display:flex;align-items:center;justify-content:space-between;gap:16px;flex:none;padding:9px 18px;border-bottom:1px solid #bed9d5;background:#eaf6f2;color:#235d53;z-index:8}
.iso-edit-status>div{display:flex;align-items:baseline;flex-wrap:wrap;gap:4px 13px;min-width:0}
.iso-edit-status strong{font-size:11px;line-height:1.45;font-weight:700;color:inherit}
.iso-edit-status span{font-size:10px;line-height:1.45;color:inherit;opacity:.9}
.iso-edit-status.is-readonly{background:#fff6e5;border-color:#e6d5b0;color:#72521f}
.iso-edit-status button{font-size:11px!important;white-space:nowrap;flex:none;min-height:34px!important;background:#fff!important;color:#2a5d55!important;border-color:#accfc7!important}
.iso-edit-status.is-readonly button{color:#72521f!important;border-color:#d7c49f!important}
:is(html,body)[data-qps-theme=dark] .iso-edit-status,:is(html,body)[data-theme=dark] .iso-edit-status{background:#173c36;border-color:#345d53;color:#c0ece0}
:is(html,body)[data-qps-theme=dark] .iso-edit-status.is-readonly,:is(html,body)[data-theme=dark] .iso-edit-status.is-readonly{background:#3c3323;border-color:#615335;color:#f1d79d}
:is(html,body)[data-qps-theme=dark] .iso-edit-status button,:is(html,body)[data-theme=dark] .iso-edit-status button{background:#244e45!important;color:#d4f4e9!important;border-color:#4a7566!important}
:is(html,body)[data-qps-theme=dark] .iso-edit-status.is-readonly button,:is(html,body)[data-theme=dark] .iso-edit-status.is-readonly button{background:#51442c!important;color:#f9e8bc!important;border-color:#7d6943!important}
/* The application's actual theme attribute is data-qps-theme. */
:is(html,body)[data-qps-theme=dark] .iso-workspace{--iso-ink:#e0edf4;--iso-muted:#a7bdcc;--iso-border:#3a5363;--iso-paper:#1b2e3d;--iso-wash:#172733;--iso-accent:#8bddd7}
:is(html,body)[data-qps-theme=dark] .iso-workspace :is(.iso-sheet-list,.iso-component-list) button.active,:is(html,body)[data-theme=dark] .iso-workspace :is(.iso-sheet-list,.iso-component-list) button.active{background:#285450;color:#e8f7f3;border-color:#4d8078}
:is(html,body)[data-qps-theme=dark] .iso-workspace .iso-history .iso-revision.active,:is(html,body)[data-theme=dark] .iso-workspace .iso-history .iso-revision.active{background:#285450;color:#e8f7f3;border-color:#4d8078}
:is(html,body)[data-qps-theme=dark] .iso-workspace .iso-panel-tabs button[aria-expanded=true],:is(html,body)[data-theme=dark] .iso-workspace .iso-panel-tabs button[aria-expanded=true]{background:#285450;color:#e8f7f3;border-color:#4d8078}
@media(max-width:700px){.iso-workspace>.iso-edit-status{padding:8px 10px;gap:10px}.iso-edit-status>div{display:block}.iso-edit-status strong{font-size:10px;display:block}.iso-edit-status span{font-size:9px;display:block;margin-top:2px}.iso-edit-status button{font-size:10px!important;padding:7px 9px!important}.iso-focus>.iso-edit-status{padding:6px 10px}.iso-focus .iso-edit-status span{display:none}}
/* A miniature remains an icon: fixed lettering avoids Safari's tiny-font reflow. */
.iso-lib-book-mini .iso-lib-book-face{display:block;overflow:hidden}
.iso-lib-book-mini .iso-lib-book-series{display:block;font-size:4px;line-height:6px;height:6px;overflow:hidden;white-space:nowrap}
.iso-lib-book-mini .iso-lib-book-label{position:absolute;left:17px;right:14px;bottom:13px;display:block;margin:0;max-height:23px;overflow:hidden}
.iso-lib-book-mini .iso-lib-book-label>strong{font-size:9px;line-height:1.25;-webkit-line-clamp:2;max-height:23px;overflow:hidden}
.iso-lib-book-mini :is(.iso-lib-label-kicker,.iso-lib-book-count,.iso-lib-label-rule){display:none}
.iso-lib-book-mini .iso-lib-cover-mark{position:absolute;left:20px;right:16px;top:30%;min-height:0}
.iso-lib-book-mini .iso-lib-cover-blueprint{position:absolute;inset:16px 8px auto 15px;width:calc(100% - 23px);height:45%;min-height:0;max-height:none}