.iirbr-catalog,.iirbr-builder{font-family:inherit;max-width:1360px;margin:24px auto;color:#283d43}
.iirbr-catalog h2,.iirbr-builder h2{font-size:clamp(25px,3vw,35px);line-height:1.2;margin:0 0 22px;color:#283d43}
.iirbr-chapters{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.iirbr-chapter-card{border:1px solid #f0e3d4;border-radius:22px;background:#fffaf4;overflow:hidden;box-shadow:0 5px 20px rgba(44,48,48,.045);min-width:0}
.iirbr-chapter-card>img{display:block;width:100%;aspect-ratio:16/6;object-fit:cover}
.iirbr-chapter-inner{padding:24px 27px}
.iirbr-chapter-card h3{font-size:24px;line-height:1.28;margin:0 0 10px;color:#23493d}
.iirbr-chapter-card p{line-height:1.6;color:#526268;margin:0 0 16px}
.iirbr-chapter-card ul{list-style:none!important;margin:0!important;padding:0!important;display:grid;gap:2px}
.iirbr-chapter-card li{margin:0!important;padding:0!important;border-bottom:1px solid #f2e8dd}
.iirbr-chapter-card li:last-child{border:0}
.iirbr-chapter-card li a{display:block;padding:10px 0;font-size:16px;color:#263b42!important;text-decoration:none!important;line-height:1.45}
.iirbr-chapter-card li a:hover{color:#19825f!important;text-decoration:underline!important}
.iirbr-builder{background:#fff8ed;border:1px solid #ecddca;border-radius:22px;padding:24px 28px}
.iirbr-choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}
.iirbr-choices label{display:flex;align-items:center;gap:12px;border:1px solid #e9d9c8;background:white;border-radius:14px;padding:14px 16px;cursor:pointer;font-size:16px}
.iirbr-choices input{width:18px;height:18px;accent-color:#248965}
.iirbr-choices small{color:#697379}
.iirbr-btn{border:0;border-radius:14px;background:#248965;color:#fff;font-size:16px;font-weight:650;padding:14px 26px;cursor:pointer}
.iirbr-builder-disabled{border:1px dashed #ddcdb9;color:#526268;background:#fff8ed;padding:20px;border-radius:15px}
@media(max-width:790px){.iirbr-chapters,.iirbr-choices{grid-template-columns:1fr}.iirbr-chapter-inner{padding:20px}.iirbr-builder{padding:19px}.iirbr-chapter-card>img{aspect-ratio:16/8}}
/* IIR Book Ready 0.2: visual chapter-picker/preview prototype, editor only */
.iirbr-builder-v2{background:#fffaf4}.iirbr-editor-note{color:#5c6870;font-size:13px;margin-bottom:9px}
.iirbr-builder-layout{display:grid;grid-template-columns:minmax(250px,.9fr) minmax(300px,1.1fr);gap:22px;align-items:start}
.iirbr-selection h3{margin:0 0 15px;font-size:20px}.iirbr-choice-list{display:grid;gap:10px;max-height:620px;overflow-y:auto;padding-right:4px}
.iirbr-builder-v2 .iirbr-choice{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid #e6daca;padding:14px 15px;border-radius:14px;cursor:pointer;flex-wrap:wrap}
.iirbr-builder-v2 .iirbr-choice:has(input:checked){background:#f0f8f2;border-color:#69a78b}
.iirbr-builder-v2 .iirbr-choice input{accent-color:#248965;width:19px;height:19px;flex-shrink:0}
.iirbr-choice-name{font-size:15px;font-weight:600;flex:1;min-width:120px}.iirbr-choice small{font-size:12px;color:#697379}
.iirbr-selection-count,.iirbr-preview-stats{font-size:14px;color:#56656b}
.iirbr-live-preview{background:#fff;border:1px solid #eee0cc;border-radius:20px;padding:20px;position:sticky;top:24px;min-width:0}
.iirbr-cover{aspect-ratio:4/5;background:linear-gradient(145deg,#f6d1a3 0%,#e8af76 36%,#396767 100%);background-size:cover;background-position:center;max-width:375px;margin:auto;border-radius:12px;box-shadow:10px 15px 25px rgba(22,42,47,.15);display:flex;flex-direction:column;justify-content:end;padding:34px;box-sizing:border-box}
.iirbr-cover-caption{color:#fff;display:flex;flex-direction:column;gap:15px;text-shadow:0 2px 8px rgba(0,0,0,.25)}
.iirbr-cover-caption span{letter-spacing:2px;text-transform:uppercase;font-size:12px}.iirbr-cover-caption strong{font-size:clamp(25px,2.5vw,34px);line-height:1.15;color:#fff}.iirbr-cover-caption em{font-size:16px}
.iirbr-preview-stats{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;margin:22px 0 14px}
.iirbr-preview-actions{display:flex;gap:10px;flex-wrap:wrap}.iirbr-preview-actions button{flex:1;min-width:140px}.iirbr-buy-disabled{background:#dcd8d2!important;color:#746c63!important;cursor:not-allowed!important}
.iirbr-open-preview:disabled,.iirbr-proof-btn:disabled{opacity:.5;cursor:not-allowed}.iirbr-proof-form{margin-top:13px}
.iirbr-proof-btn{background:none;border:1px solid #8ea99c;color:#245b47;border-radius:9px;padding:9px 14px;cursor:pointer}.iirbr-note{font-size:12px;color:#647078;line-height:1.5}
.iirbr-modal[hidden]{display:none!important}.iirbr-modal-open{overflow:hidden}
.iirbr-modal{position:fixed;inset:0;z-index:999999;background:rgba(14,26,32,.75);display:flex;justify-content:center;align-items:center;padding:16px;box-sizing:border-box}
.iirbr-modal-card{background:#faf6ef;border-radius:17px;width:min(800px,100%);height:min(92vh,900px);display:flex;flex-direction:column;overflow:hidden;box-shadow:0 24px 80px rgba(0,0,0,.22)}
.iirbr-modal-header{display:flex;align-items:center;gap:14px;padding:11px 17px;background:white;border-bottom:1px solid #eaded0}
.iirbr-modal-header strong{flex:1;font-size:15px}.iirbr-modal-pages{font-variant-numeric:tabular-nums;color:#51666c}
.iirbr-zoom-actions{display:flex;align-items:center;gap:6px}.iirbr-zoom-actions button,.iirbr-close{width:33px;height:33px;border-radius:8px;border:1px solid #d8e1da;background:#fff;cursor:pointer;font-size:22px}
.iirbr-zoom-level{font-size:12px;min-width:34px;text-align:center}
.iirbr-modal-viewport{flex:1;overflow:auto;padding:28px 14px;display:flex;justify-content:center;align-items:flex-start}
.iirbr-book-page{--iirbr-zoom:1;font-family:Georgia,'Times New Roman',serif;box-sizing:border-box;flex-shrink:0;width:calc(380px * var(--iirbr-zoom));min-height:510px;min-height:calc(510px * var(--iirbr-zoom));padding:calc(37px * var(--iirbr-zoom));border:1px solid #e6dfd0;background:#fffdf9;box-shadow:0 8px 20px rgba(47,46,39,.12);color:#253944;font-size:calc(15px * var(--iirbr-zoom));line-height:1.5;overflow-wrap:anywhere}
.iirbr-book-page[data-page-type=cover]{background:linear-gradient(160deg,#fff2d6 0%,#f2b982 48%,#346c6b 100%);display:flex;flex-direction:column;justify-content:end;color:#fff}
.iirbr-page-cover-title{font-size:2em;line-height:1.16;color:inherit!important}.iirbr-page-site{font:600 .8em system-ui;letter-spacing:.12em;text-transform:uppercase}
.iirbr-page-imprint,.iirbr-page-date{font-style:italic}.iirbr-page-eyebrow{font:600 .8em system-ui;color:#52755c;letter-spacing:.12em;text-transform:uppercase}
.iirbr-book-page h2{font-size:1.8em;line-height:1.25;font-family:Georgia,serif;color:#233a42}.iirbr-page-paragraph{font-family:Georgia,serif}
.iirbr-page-portrait{width:28%;height:auto;float:right;margin:0 0 12px 15px;border-radius:6px}
.iirbr-chapter-img{width:100%;height:auto;max-height:220px;object-fit:cover;border-radius:6px}
.iirbr-page-toc{padding-left:20px}.iirbr-page-toc li{margin-bottom:.55em}
.iirbr-modal-footer{display:flex;justify-content:space-between;padding:12px 16px;background:white;border-top:1px solid #eaded0}
.iirbr-modal-footer button{border:1px solid #b7cfc0;border-radius:9px;background:#fff;color:#285c46;padding:9px 14px;cursor:pointer}
.iirbr-modal-footer button:disabled{opacity:.35;cursor:default}
@media(max-width:760px){.iirbr-builder-layout{grid-template-columns:1fr}.iirbr-live-preview{position:static}.iirbr-choice-list{max-height:none}.iirbr-modal-header{gap:7px;padding:9px}.iirbr-modal-header strong{font-size:12px}.iirbr-book-page{width:calc(280px * var(--iirbr-zoom));min-height:calc(400px * var(--iirbr-zoom));padding:calc(24px * var(--iirbr-zoom))}}

/* 0.3.3 publisher identity on book cover and in editorial mock. */
.iirbr-publisher-logo{display:block;width:52px!important;height:52px!important;object-fit:contain;filter:drop-shadow(0 2px 5px #202a2940)}
.iirbr-page-logo{width:45px;height:45px;object-fit:contain;margin-bottom:10px}
.iirbr-book-page[data-page-type=cover]{background-size:cover;background-position:center;text-shadow:0 2px 9px #152b2d88}
.iirbr-choice small{flex-basis:100%;padding-left:32px}

/* 0.3.4: chapter index search and actual editorial article excerpts. */
.iirbr-search-label{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-weight:650;margin:0 0 8px}
.iirbr-catalog-search{display:block;max-width:420px;width:100%;border:1px solid #c9d7cf!important;border-radius:12px;padding:13px 15px!important;background:#fff!important;color:#243d39;font:inherit;min-height:45px}
.iirbr-search-results{font-size:13px;color:#65736c;margin:0 0 18px}
.iirbr-chapter-card[hidden],.iirbr-chapter-card li[hidden]{display:none!important}
.iirbr-auto-catalog-shelf{margin:36px auto;max-width:1360px}
.iirbr-books-coming{margin:24px 0 10px;background:#fff7eb;border:1px solid #e8d9c3;border-radius:18px;padding:20px 24px}
.iirbr-books-coming h2{margin:0 0 8px;font-size:24px}.iirbr-books-coming p{margin:0;line-height:1.65}
.iirbr-page-article-text{font:normal 1em/1.65 Georgia,'Times New Roman',serif;color:#283a42;white-space:normal;margin:20px 0}
.iirbr-page-article-notice{font:normal .72em/1.4 system-ui,sans-serif;color:#797d7a;border-top:1px solid #e0dacf;padding-top:12px;margin-top:25px}

/* 0.3.5 — editorial book composition controls and page navigator (no payment). */
.iirbr-choice-actions{display:flex;gap:10px;margin:-3px 0 14px;flex-wrap:wrap}
.iirbr-choice-actions button{appearance:none;border:1px solid #b9d4c3;border-radius:10px;padding:8px 12px;background:#fff;color:#245b47;font:600 13px system-ui,sans-serif;cursor:pointer}
.iirbr-choice-actions button:disabled{opacity:.4;cursor:default}
.iirbr-preview-articles{font-size:13px;color:#5c7468}
.iirbr-modal-workspace{min-height:0;flex:1;display:flex;overflow:hidden}
.iirbr-modal-workspace .iirbr-modal-viewport{flex:1;min-width:0}
.iirbr-page-strip{display:block;flex:0 0 130px;overflow:auto;background:#efeae1;border-right:1px solid #dacfc1;padding:9px 7px}
.iirbr-thumb-list{display:flex;flex-direction:column;gap:9px}
.iirbr-thumb{border:2px solid transparent;border-radius:9px;background:none;display:flex;align-items:center;flex-direction:column;gap:5px;padding:5px;cursor:pointer;color:#465d58;width:100%;text-align:center;font:11px/1.25 system-ui,sans-serif}
.iirbr-thumb[aria-current=page]{border-color:#248965;background:#fff9f0}
.iirbr-thumb:focus-visible,.iirbr-toc-link:focus-visible{outline:3px solid #248965;outline-offset:2px}
.iirbr-thumb-mini{display:block;position:relative;width:57px;height:74px;border:1px solid #d9d2c8;border-radius:3px;background:#fffdf8 center/cover no-repeat;box-shadow:0 2px 7px #2e362733}
.iirbr-thumb-mini:not(.iirbr-thumb-cover):not(.iirbr-thumb-chapter):before{content:'';display:block;background:#4c806b;width:32px;height:3px;margin:14px 10px 7px}
.iirbr-thumb-lines{display:block;margin:0 10px;width:33px;height:22px;background:repeating-linear-gradient(180deg,#bdc8ba 0 2px,transparent 2px 6px)}
.iirbr-thumb-caption{display:block;max-width:108px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.iirbr-toc-link{width:100%;border:0;border-bottom:1px dotted #bac9bf;text-align:left;background:transparent;color:#285b48;display:flex;gap:8px;justify-content:space-between;padding:7px 0;font:inherit;cursor:pointer}
.iirbr-toc-link:hover{text-decoration:underline}
.iirbr-toc-pageno{margin-left:auto;font:600 .85em system-ui,sans-serif;color:#6e7f76}
@media(max-width:620px){.iirbr-modal-workspace{flex-direction:column}.iirbr-page-strip{flex:0 0 106px;max-height:106px;width:100%;overflow-x:auto;overflow-y:hidden;border-right:0;border-bottom:1px solid #dacfc1}.iirbr-thumb-list{flex-direction:row;width:max-content}.iirbr-thumb{width:84px;flex:0 0 84px}.iirbr-thumb-mini{height:55px;width:43px}.iirbr-thumb-caption{max-width:76px}.iirbr-modal-workspace .iirbr-modal-viewport{padding:14px 8px}.iirbr-modal-header{flex-wrap:wrap}.iirbr-modal-header strong{max-width:125px}.iirbr-zoom-actions{margin-left:auto}}

/* 0.3.7 book builder hierarchy: root and leaf selection */
.iirbr-choice-child{margin-left:18px!important;padding-left:14px!important;border-left:3px solid #e7d9c3!important}