/* Sage Paper Studio: shared soft surfaces, readable ink, restrained accents. */
:root{--bg:#e7e6df;--surface:#f3f1eb;--surface-2:#eeede6;--text:#253d38;--muted:#737e75;--text-muted:#737e75;--border:#d5d9cf;--border-light:#dfe1d7;--primary:#365e51;--accent:#dce5dc;--strong:#284b40;--focus:#365e51;--radius:12px;--shadow-flat-sm:none;--shadow-flat-md:none;font-size:14px;font-family:'Segoe UI','Microsoft YaHei',sans-serif}
body{background:var(--bg)}
:root{--muted:#59675d;--text-muted:#59675d}
.panel,.modal-card,.source-tab.active,input,select,textarea,.secondary-button{background:var(--surface)}
.panel{box-shadow:none;border-color:#dfe1d7}
.source-tabs{background:transparent;border-radius:0;gap:14px;padding:0}
.source-tab{font-size:15px;min-height:46px;border-radius:8px}
.source-tab.active{background:var(--accent);color:var(--strong)}
.brand-block .eyebrow,.brand-subtitle,.overview-strip,.section-index{display:none}
.topbar{display:flex;align-items:center;gap:32px;min-height:72px;border-bottom:1px solid #bac7bb;padding-bottom:18px}
.topbar h1{font-size:25px;margin:0;letter-spacing:0;white-space:nowrap}
.topbar-actions{margin-left:auto}
.topbar .source-tabs-row{flex:1}
.source-tabs-hint{display:none}
.brand-mark{font-size:36px;color:var(--primary);margin-right:12px;vertical-align:middle}
#generateTopButton{display:none}
.primary-button{background:var(--primary);border-color:var(--primary);color:#f5f3ed;border-radius:9px;font-weight:600}
.secondary-button,.ghost-button{color:var(--text);border-radius:9px}
input,select,textarea{border:1px solid var(--border);border-radius:9px;color:var(--text);font-size:14px}
textarea{line-height:1.9;padding:16px;resize:vertical}
.preview-empty:before,.preview-empty:after{display:none}
.compact-style-select,.compact-setting,.style-example{display:none}
.is-custom .compact-setting{display:flex;flex-direction:column;gap:12px;font-weight:600;font-size:14px}
.is-custom .compact-setting select{height:48px;width:100%;padding:10px 12px;font-size:14px}
.is-custom .settings-stack>#modelSection,.is-custom .settings-stack>div:has(#ratioGroup),.is-custom .settings-stack>div:has(#imageSizeGroup){display:none!important}
.is-custom{height:auto;min-height:100dvh;padding:22px 24px;gap:24px;max-width:1800px}
.is-custom .workspace{display:grid;grid-template-columns:minmax(0,1fr) 294px;gap:20px;align-items:stretch}
.is-custom.is-series .workspace{grid-template-columns:244px minmax(420px,1fr) 294px}
.is-custom .source-workspace{display:contents}
.is-custom .custom-source-pane.active{grid-column:auto;display:block}
.is-custom #presetContentPane,.is-custom #flowPanel{display:none!important}
.is-custom .result-column{grid-column:1/-1;display:none;min-height:200px}
.is-custom.has-results .result-column{display:grid;grid-template-columns:minmax(0,1fr) 280px}
.is-custom .custom-content-panel{padding:26px 28px;min-height:710px;overflow:visible;height:100%}
.is-custom .custom-content-panel>.panel-heading{padding-bottom:20px;border-bottom:1px solid var(--border);margin-bottom:24px}
.is-custom .custom-content-panel>.panel-heading h2{font-size:20px}
.content-controls{display:flex;gap:18px;align-items:start;border-bottom:1px solid var(--border);padding-bottom:24px;margin-bottom:22px;flex-wrap:wrap}
.content-controls>div{flex:1;min-width:180px}
.content-controls h3{font-size:14px;margin-bottom:8px}
.content-controls .custom-hint{font-size:12px;min-height:18px;margin-bottom:12px;color:var(--muted)}
.choice-row{display:flex;gap:6px}
.choice-row button{border:1px solid var(--border);border-radius:8px;background:transparent;padding:10px 13px;min-height:44px;color:var(--text);white-space:nowrap}
.choice-row button[aria-pressed=true]{background:var(--accent);border-color:#8caa97;color:var(--strong)}
#pageCountLabel{width:110px;display:flex;flex-direction:column;gap:9px;font-weight:600}
#pageCount{height:44px;width:100%;padding:8px 12px}
#pageCountLabel small{font-weight:400;font-size:11px}
#pageEditor label{display:block;font-weight:600;margin-bottom:18px;font-size:15px}
#pageEditor input,#pageEditor textarea{display:block;width:100%;margin-top:12px;font-weight:400;background:#f7f5ef;font-size:16px}
#pageEditor input{height:48px;padding:12px 16px}
#pageBody{min-height:180px}
#pageVisual{min-height:106px}
#pageEditor .source-count{margin-top:-12px}
.editor-toolbar{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:18px;color:var(--muted);font-size:12px}
.editor-toolbar .ghost-button{font-size:12px;padding:4px 9px;min-height:32px}
.editor-note{font-size:12px;color:var(--muted);margin:0;line-height:1.8}
.page-outline{display:flex;flex-direction:column;padding:26px 16px;gap:12px}
.page-outline .panel-heading{padding:0 8px 20px;border-bottom:1px solid var(--border);margin-bottom:10px}
.page-outline h2{font-size:18px}
.page-list{display:flex;flex-direction:column;gap:8px;max-height:500px;overflow-y:auto}
.page-list-item{background:transparent;border:0;text-align:left;display:flex;align-items:start;padding:19px 12px;gap:14px;border-radius:9px;min-height:78px;color:var(--text);width:100%}
.page-list-item[aria-current=true]{background:#dce3d9}
.page-number{font-size:14px;color:#6d7d71;line-height:24px}
.page-list-item strong{display:block;font-size:14px;line-height:1.7;overflow-wrap:anywhere}
.page-list-item small{display:block;margin-top:7px;font-size:12px}
.outline-note{margin:auto 12px 10px;padding-top:40px;color:#8a9688;line-height:2;font-size:13px}
.outline-landscape{display:block;width:100%;aspect-ratio:5/3;object-fit:contain;margin-top:auto;mix-blend-mode:multiply}
.outline-landscape+.outline-note{margin:0 12px 10px;padding-top:8px;color:var(--muted)}
.is-custom .settings-panel{padding:26px 20px;overflow:visible;display:block}
.is-custom .settings-panel h2{font-size:20px}
.is-custom .settings-stack{overflow:visible;display:flex;flex-direction:column;gap:18px}
.is-custom .settings-stack>#runSummary{display:none}
.is-custom .compact-style-select{display:flex;flex-direction:column;gap:10px;order:1;font-size:14px;font-weight:600}
.is-custom .compact-style-select select{width:100%;height:44px;padding:8px}
.is-custom #styleGrid{display:none}
.is-custom .settings-stack>div:has(#styleGrid){display:none}
.is-custom .setting-title{font-size:13px;margin-bottom:9px}
.is-custom .style-example{display:block;border-top:1px solid var(--border);padding-top:16px;margin:22px 0 0}
.style-example figcaption{font-size:12px;color:var(--muted);margin-bottom:12px}
.style-example img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:8px;display:block}
.is-custom .resolution-group{gap:6px}
.is-custom .resolution-option,.is-custom .ratio-option{background:var(--surface);border-color:var(--border)}
.series-actions{display:flex;gap:16px;align-items:center;margin-left:264px;padding:10px 0;position:sticky;bottom:0;background:var(--bg);z-index:10}
.series-actions .primary-button{margin-left:auto;min-height:52px;padding:12px 26px;font-size:15px}
.series-actions .secondary-button{min-height:52px;padding:12px 22px;font-size:14px}
.series-actions .muted{font-size:12px}
.is-custom:not(.is-series) .series-actions{margin-left:0}
#autoTextPanel textarea{display:block;width:100%;min-height:260px;margin-top:12px}
#fileSourcePanel{margin-bottom:24px;background:var(--surface-2);padding:18px;border-radius:10px}
#fileSourcePanel .upload-drop-zone{width:100%;min-height:110px;background:transparent;border:1px dashed #9cae9e;color:var(--primary)}
.bulk-dialog{width:min(640px,92vw);background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:28px;color:var(--text)}
.bulk-dialog::backdrop{background:#20392c66}
.bulk-dialog p{font-size:13px;line-height:1.8;margin-top:16px}
.bulk-dialog textarea{width:100%;min-height:300px}
.dialog-actions{display:flex;justify-content:flex-end;gap:12px}
.is-custom .preview-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,230px));gap:16px;overflow:visible}
.is-custom .preview-card img{height:auto;width:100%;object-fit:contain;max-height:300px}
@media(min-width:1500px){.is-custom.is-series .workspace{grid-template-columns:260px minmax(500px,1fr) 310px}.series-actions{margin-left:280px}}
@media(max-width:1250px) and (min-width:761px){.is-custom.is-series .workspace{grid-template-columns:200px minmax(350px,1fr) 250px}.is-custom .custom-content-panel{padding:22px}.content-controls{gap:12px}.content-controls>div{min-width:170px}#pageCountLabel{width:100%;flex-direction:row;align-items:center}#pageCount{width:80px}.series-actions{margin-left:220px}.topbar{gap:16px}.topbar h1{font-size:21px}.source-tab{padding:0 14px}.series-actions .muted{display:none}}
@media(max-width:1000px) and (min-width:761px){.is-custom.is-series .workspace{grid-template-columns:190px minmax(0,1fr)}.is-custom .settings-panel{grid-column:1/-1}.is-custom .settings-stack{display:grid;grid-template-columns:repeat(3,1fr)}.is-custom .style-example{display:none}.topbar{flex-wrap:wrap}.topbar .source-tabs-row{order:3;flex-basis:100%}}
@media(max-width:760px){
 .app-shell,.is-custom{height:auto;min-height:100dvh;padding:16px 14px 88px;gap:18px}
 .topbar{flex-wrap:wrap;gap:14px;padding-bottom:16px}.topbar h1{font-size:20px}.brand-mark{font-size:25px;margin-right:6px}.topbar-actions{margin:0}.topbar .source-tabs-row{order:3;flex-basis:100%}.source-tabs{width:100%}.source-tab{flex:1}
 .is-custom .workspace,.is-custom.is-series .workspace{display:flex;flex-direction:column;gap:14px}
 .is-custom .page-outline{padding:16px;gap:8px}.page-outline .panel-heading{margin:0;padding-bottom:10px}.page-list{flex-direction:row;max-height:none;overflow-x:auto}.page-list-item{min-width:150px;padding:12px;min-height:70px}.page-outline .full-width{width:auto}.outline-note,.outline-landscape{display:none}
 .is-custom .custom-content-panel{padding:18px;min-height:0}.content-controls{gap:14px}.content-controls>div{min-width:100%}#pageCountLabel{width:100%;flex-direction:row;align-items:center}#pageCount{width:80px}.choice-row button{flex:1}.editor-toolbar{flex-wrap:wrap}.editor-toolbar>div{display:flex}.is-custom .custom-content-panel>.panel-heading{margin-bottom:18px;padding-bottom:16px}#pageBody{min-height:210px}
 .series-actions{margin-left:0;flex-wrap:wrap;gap:10px;position:static}.series-actions .primary-button,.series-actions .secondary-button{width:100%;margin:0}.series-actions .muted{display:none}
 .is-custom .style-example{max-width:220px;margin:20px auto}.is-custom.has-results .result-column{display:flex;flex-direction:column}.is-custom .preview-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .app-shell[data-mobile-tab=plan] #pageOutline,.app-shell[data-mobile-tab=result] #pageOutline,.app-shell[data-mobile-tab=result] #seriesActions{display:none!important}
 .is-custom[data-mobile-tab=result] .result-column{display:flex!important;flex-direction:column}
 .mobile-nav-bar{background:var(--surface)}
}

.topic-shortcuts{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0}.topic-shortcuts button{border:1px solid #cbd5c9;border-radius:16px;background:#e5ebe1;color:#355548;padding:5px 10px;font:inherit;cursor:pointer}.topic-shortcuts button:focus-visible{outline:2px solid #355548;outline-offset:2px}.list-toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.list-toolbar .text-button{font-size:12px;padding:3px;background:transparent;border:0;color:#355548;cursor:pointer}