:root{--ink:#25382f;--muted:#768077;--green:#315e48;--green-dark:#214532;--pale:#e8eee6;--paper:#fafbf7;--line:#e0e5dc;--error:#9c3636;--radius:12px;font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none;color-scheme:light}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0}button,input,select{font:inherit}button,a,label{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.5}a{color:var(--green)}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #a4c2a8;outline-offset:3px}input,select{width:100%;border:1px solid #d3dacf;border-radius:8px;background:white;min-height:44px;padding:10px 12px;color:var(--ink);outline:none}input:focus,select:focus{border-color:#628f71;box-shadow:0 0 0 3px #e5eee5}label{display:block;font-size:13px;font-weight:600;margin:17px 0 7px}h1,h2,h3,p{margin-top:0}.primary,.secondary,.icon-button,.text-button{border-radius:8px;border:1px solid transparent;min-height:40px;padding:9px 16px;font-size:13px;font-weight:600;transition:background .15s,border-color .15s}.primary{background:var(--green);color:white;box-shadow:0 2px 3px #193a2212}.primary:hover{background:var(--green-dark)}.secondary{background:white;border-color:#d6ddd1;color:var(--ink)}.secondary:hover{background:#f1f5ee;border-color:#a6b9a0}.text-button{background:transparent;color:var(--muted)}.text-button:hover{background:#edf1e8}.icon-button{font-size:23px;width:34px;min-height:34px;padding:0;background:transparent;line-height:1}.icon-button:hover{background:#e7eee2}.compact{min-height:36px;padding:8px 12px}.full{width:100%;display:flex;justify-content:space-between;align-items:center;margin-top:24px;min-height:46px}.muted,.field-help{color:var(--muted);font-size:13px;line-height:1.65}.field-help{font-size:12px;margin:8px 0 0}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-size:24px;font-weight:700;letter-spacing:1px}.brand-icon{background:var(--green);color:white;width:39px;height:43px;display:inline-flex;justify-content:center;align-items:center;border-radius:10px 10px 10px 2px;font-size:23px;font-weight:600;box-shadow:inset -4px 0 0 #ffffff12}.brand small{display:block;font-size:8px;letter-spacing:1.8px;font-weight:600;color:var(--muted);margin-top:2px}.eyebrow{display:block;text-transform:uppercase;font-size:11px;font-weight:600;letter-spacing:1.5px;color:#6c856b}.edition-tag{display:inline-flex;align-items:center;border:1px solid var(--line);background:#f3f6ef;color:#76866b;border-radius:5px;padding:4px 8px;font-size:10px;letter-spacing:.4px;white-space:nowrap}.demo-banner{font-size:12px;background:#f4e8c9;color:#765b20;text-align:center;padding:8px 16px}.boot-screen{height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;color:var(--muted)}.boot-screen p{margin:0}.auth-screen{max-width:1140px;min-height:100vh;margin:0 auto;padding:72px 50px;display:grid;grid-template-columns:1.25fr 1fr;gap:100px;align-items:center}.auth-story .brand{margin-bottom:68px}.auth-story h1{font-size:46px;font-weight:650;line-height:1.35;letter-spacing:-1px;margin:18px 0 24px}.story-copy{font-size:14px;line-height:1.9;color:#71806e;max-width:385px}.pair-preview{margin-top:32px;border:1px solid #dce3d6;background:#f0f4eb;padding:23px 26px;border-radius:13px;box-shadow:0 8px 30px #405a3510;max-width:370px;position:relative}.preview-label{font-size:10px;color:#84967d;letter-spacing:1px;display:block;margin-bottom:20px}.preview-row{display:flex;gap:15px;align-items:flex-start}.preview-row p{font-size:16px;line-height:1.6;margin:0;color:#506746}.preview-row strong{font-weight:600}.number{font-size:10px;background:#d8e5d2;color:#597550;border-radius:4px;padding:4px 5px;flex-shrink:0;margin-top:3px}.pair-line{height:1px;background:#d8e1d0;margin:16px 0 16px 38px}.story-bottom{display:flex;gap:23px;font-size:11px;color:#839277;margin-top:32px}.story-bottom span:before{content:'✓';margin-right:6px;color:#7c9b6e}.auth-card{background:#fff;border:1px solid #e0e5d9;border-radius:17px;padding:35px 32px;box-shadow:0 12px 60px #25352308}.auth-card h2{font-size:26px;font-weight:600;margin:22px 0 9px}.auth-tabs{display:flex;background:#f1f4ed;padding:4px;border-radius:8px;margin:25px 0 24px}.auth-tabs button{width:50%;border:0;background:transparent;font-size:12px;color:#7a8973;padding:10px;border-radius:5px}.auth-tabs button[aria-selected=true]{background:#fff;color:var(--green);box-shadow:0 1px 3px #35432810;font-weight:600}.auth-note{font-size:11px;line-height:1.75;color:#8c9487;margin:22px 0 0;border-top:1px solid #eef0eb;padding-top:18px}.policies{font-size:11px;color:#7a8972;margin-top:21px}.policies summary{cursor:pointer}.policies pre{white-space:pre-wrap;font:inherit;line-height:1.65;max-height:180px;overflow:auto;padding-right:8px}.policies h3{font-size:12px;margin:17px 0 8px}.policies #web-notice{line-height:1.65;margin-top:14px}.checkbox-label{display:flex;align-items:flex-start;gap:9px;font-weight:400;line-height:1.65;color:#667060}.checkbox-label input{width:16px;min-height:16px;flex-shrink:0;margin-top:3px;accent-color:var(--green)}.form-error{font-size:12px;line-height:1.6;border:1px solid #ebd2ce;background:#fff5f3;color:var(--error);padding:10px 12px;border-radius:7px;margin-top:16px;overflow-wrap:anywhere}.app-screen{height:100vh;display:flex;flex-direction:column}.demo-banner:not([hidden])~.app-screen{height:calc(100vh - 34px)}.app-header{height:78px;flex-shrink:0;border-bottom:1px solid var(--line);background:#fff;display:flex;align-items:center;padding:0 28px;gap:20px}.app-header .brand{font-size:21px}.app-header .brand-icon{width:33px;height:37px;font-size:20px}.header-actions{display:flex;align-items:center;gap:15px;margin-left:auto}.model-summary{font-size:11px;color:#798b71;border-radius:5px;background:#f3f6ef;padding:7px 9px;max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-name{font-size:12px;font-weight:600;color:#63725d;max-width:120px;overflow:hidden;text-overflow:ellipsis}.app-layout{display:grid;grid-template-columns:245px minmax(0,1fr);flex:1;min-height:0}.library{padding:27px 19px 20px;border-right:1px solid var(--line);background:#f5f7f0;display:flex;flex-direction:column;min-height:0}.library-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.library-title h2{font-size:13px;margin:0;font-weight:600}.library-title>span{font-size:11px;border-radius:4px;background:#e8ede1;padding:2px 6px;color:#80906d}.upload-button{display:flex;gap:8px;align-items:center;justify-content:center;min-height:42px;border:1px dashed #a5b59a;border-radius:8px;background:#fff;cursor:pointer;font-size:12px;color:#627954;margin:0}.upload-button:hover{background:#eaf0e4;border-color:#7e9b70}.upload-button>span{font-size:19px}.upload-help{font-size:10px;line-height:1.7;text-align:center;color:#9aa38e;margin:10px 0 23px}.upload-status{background:#e7eddf;padding:10px;font-size:11px;line-height:1.6;border-radius:6px;margin-bottom:12px}.document-list{flex:1;overflow:auto;padding-right:3px}.document-card{width:100%;border:1px solid transparent;background:transparent;border-radius:9px;padding:13px 11px;margin-bottom:6px;display:flex;gap:10px;text-align:left;color:var(--ink)}.document-card:hover{background:#edf2e7}.document-card.active{background:#fff;border-color:#d5dfcb;box-shadow:0 3px 9px #3d4b2810}.doc-symbol{height:31px;width:25px;background:#e4ebdc;color:#6a815a;border-radius:4px 7px 4px 4px;flex-shrink:0;font-size:8px;display:flex;align-items:center;justify-content:center}.doc-detail{min-width:0}.doc-detail strong{display:block;font-size:11px;line-height:1.55;font-weight:600;overflow-wrap:anywhere}.doc-detail small{font-size:9px;color:#929c87;display:block;margin-top:5px}.library-empty{font-size:11px;line-height:1.7;color:#939d88;text-align:center;padding-top:18px}.library-foot{border-top:1px solid #e3e9db;padding-top:17px;margin-top:15px;font-size:10px;line-height:1.7;color:#93a086}.library-foot strong{color:#798c69;font-weight:500}.library-foot p{margin:6px 0 0}.reading-main{min-height:0;min-width:0;background:#fbfcf9}.empty-state{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px}.empty-book{position:relative;font-family:Georgia,serif;font-size:45px;color:#759a69;margin-bottom:37px;transform:rotate(-6deg);border:1px solid #d5dfcb;border-radius:10px;padding:18px 35px;background:#f4f7ee;box-shadow:6px 6px 0 #e9eee2}.empty-book span{position:absolute;font:500 24px "Microsoft YaHei",sans-serif;border:1px solid #bfcfb1;background:#e5efdc;right:-22px;bottom:-12px;padding:10px 14px;border-radius:9px;transform:rotate(13deg);color:#587f45}.empty-state h1{font-size:30px;line-height:1.5;letter-spacing:-.5px;font-weight:550;margin:15px 0 18px}.empty-state>p{color:#87937d;font-size:12px;line-height:1.9;margin-bottom:27px}.empty-state .primary{padding:12px 20px}.empty-state .primary span{margin-left:20px}.empty-state .privacy-hint{font-size:10px;max-width:380px;line-height:1.75;margin:24px 0 0;color:#9fa694}.reader-shell{height:100%;display:flex;flex-direction:column;min-width:0}.document-toolbar{display:flex;gap:18px;align-items:center;justify-content:space-between;padding:23px 27px 19px;background:white;border-bottom:1px solid #e9ede4}.document-heading{min-width:0}.document-heading .eyebrow{font-size:9px;margin-bottom:7px}.document-heading h1{font-size:16px;font-weight:600;margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.document-actions{display:flex;gap:8px;flex-shrink:0}.page-toolbar{padding:10px 22px;background:#f4f7f0;border-bottom:1px solid #e0e7d9;display:flex;gap:16px;align-items:center;min-height:52px}.pagination{display:flex;align-items:center;gap:5px;flex-shrink:0}.pagination form{display:flex;gap:7px;align-items:center;font-size:11px;color:#839176}.pagination input{min-height:29px;height:29px;width:45px;padding:3px 6px;text-align:center;font-size:12px;appearance:textfield;-moz-appearance:textfield;border-radius:5px}.pagination input::-webkit-inner-spin-button{appearance:none}.segment-label{font-size:10px;color:#7c8b70;padding-left:5px}.correspondence-help{font-size:10px;color:#8a987e;margin:0}.task-status{font-size:10px;color:#788d67;margin-left:auto;line-height:1.5;max-width:300px;text-align:right}.task-status[data-state=working]:before{content:'';display:inline-block;border:2px solid #b8c9ad;border-top-color:#4e7540;width:9px;height:9px;border-radius:50%;animation:spin 1s linear infinite;margin-right:6px;vertical-align:-2px}.task-status[data-state=error]{color:var(--error)}@keyframes spin{to{transform:rotate(360deg)}}.reader-content{flex:1;min-height:0;display:flex;position:relative}.reader-content #reader-host{flex:1;width:0;min-width:0;height:100%;border:0;background:#edf0ec}.explanation-panel{width:310px;flex-shrink:0;overflow:auto;background:white;border-left:1px solid #dbe3d3;padding:20px}.explanation-heading{display:flex;justify-content:space-between;align-items:center;gap:10px}.explanation-heading h2{font-size:14px;font-weight:600;margin:0}.explanation-panel blockquote{font-size:12px;color:#6c825d;line-height:1.7;background:#f1f6ea;border-left:2px solid #96b080;margin:19px 0;padding:13px;overflow-wrap:anywhere;max-height:180px;overflow:auto}.explanation-content{white-space:pre-wrap;font-size:13px;line-height:1.9;overflow-wrap:anywhere;min-height:90px}.explanation-panel>.field-help{border-top:1px solid #edf0e8;padding-top:16px;margin-top:25px;font-size:10px}dialog{border:1px solid #d8e1cf;border-radius:15px;padding:26px 28px;color:var(--ink);box-shadow:0 24px 100px #182d2430;width:min(510px,calc(100vw - 36px));max-height:90vh;overflow:auto}dialog::backdrop{background:#14271955;backdrop-filter:blur(3px)}.dialog-heading{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:22px}.dialog-heading h2{font-size:21px;font-weight:600;margin:7px 0 0}.dialog-heading .eyebrow{font-size:9px}.account-summary{background:#f4f7ef;border-radius:8px;padding:15px 17px;display:flex;flex-wrap:wrap;gap:8px 20px;font-size:11px;color:#6f825f;margin-bottom:21px}.account-summary strong{width:100%;font-size:13px;font-weight:600}.model-choices{padding:0;border:0;margin:0}.model-choices legend{font-size:12px;font-weight:600;margin-bottom:8px}.model-choice{display:flex;gap:10px;border:1px solid #dce3d5;padding:13px;border-radius:8px;margin:9px 0;cursor:pointer}.model-choice:has(input:checked){background:#f0f5e9;border-color:#9fbc88}.model-choice input{width:15px;min-height:15px;margin:3px 0 0;flex-shrink:0;accent-color:var(--green)}.model-choice strong{display:block;font-size:12px}.model-choice small{display:block;font-size:10px;line-height:1.6;color:#839074;font-weight:400;margin-top:5px}.notice-box{background:#f3f6ee;border:1px solid #e4e9db;border-radius:7px;padding:12px 14px;font-size:11px;line-height:1.75;color:#79866b;margin-top:20px;white-space:pre-wrap}.dialog-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:23px}.redeem-section{border-top:1px solid #e6ebdf;margin-top:23px;padding-top:17px;font-size:11px;color:#7a886a}.redeem-section summary{cursor:pointer}.inline-form{display:flex;gap:8px}.inline-form input{min-width:0}.inline-form button{flex-shrink:0}.redeem-section #redeem-status{font-size:11px;margin:10px 0 0;line-height:1.6}.page-range{display:flex;gap:15px;align-items:flex-end}.page-range>div{flex:1}.page-range>span{padding-bottom:13px;font-size:12px;color:#8c977e}.export-dialog #export-status{font-size:12px;color:#6c815d;line-height:1.6}.download-link{display:block;background:var(--green);color:#fff;padding:12px;text-align:center;border-radius:8px;text-decoration:none;margin-top:20px;font-size:13px}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#2f493e;color:#fff;font-size:12px;line-height:1.6;padding:12px 20px;border-radius:9px;box-shadow:0 6px 28px #12291a25;max-width:min(500px,90vw);z-index:1000;text-align:center}.toast[data-error=true]{background:#873e39}@media(min-width:1650px){.app-layout{grid-template-columns:275px minmax(0,1fr)}.library{padding-left:25px;padding-right:25px}.document-heading h1{font-size:18px}.page-toolbar{padding-top:13px;padding-bottom:13px}}@media(max-width:1100px){.auth-screen{gap:50px;padding:50px 35px}.auth-story h1{font-size:38px}.header-actions{gap:9px}.model-summary{display:none}.app-layout{grid-template-columns:200px minmax(0,1fr)}.library{padding:22px 12px}.document-toolbar{padding:18px}.document-heading h1{font-size:14px}.document-actions{gap:5px}.document-actions button{font-size:11px;padding:7px 9px}.page-toolbar{gap:8px;padding:9px 14px}.correspondence-help{display:none}.explanation-panel{width:275px}.app-header{padding:0 20px}.app-header>.edition-tag{display:none}}@media(max-width:760px){.auth-screen{grid-template-columns:1fr;padding:30px 24px;gap:28px;max-width:470px}.auth-story .brand{margin-bottom:28px}.auth-story h1{font-size:33px;margin-bottom:14px}.story-copy{margin-bottom:0}.pair-preview,.story-bottom{display:none}.auth-card{padding:26px 23px}.app-header{height:65px;padding:0 14px;gap:8px}.app-header .brand{font-size:18px}.app-header .brand small{font-size:6px}.header-actions .secondary{font-size:11px;padding:7px 10px;min-height:34px}.user-name{display:none}.header-actions{gap:3px}.app-layout{grid-template-columns:1fr;grid-template-rows:auto minmax(0,1fr)}.library{padding:10px 13px;display:grid;grid-template-columns:112px minmax(0,1fr);gap:8px;border-right:0;border-bottom:1px solid var(--line)}.library-title,.upload-help,.library-foot{display:none}.upload-button{font-size:11px;min-height:38px}.document-list{display:flex;gap:5px;overflow:auto;padding:0;align-items:center}.document-card{width:170px;flex-shrink:0;margin:0;padding:7px 9px;min-height:39px}.doc-symbol{height:25px;width:21px}.doc-detail strong{font-size:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.doc-detail small{font-size:8px;margin-top:2px}.library-empty{padding:0;margin:0;text-align:left}.upload-status{grid-column:1/-1;margin:0;grid-row:2}.empty-state{padding:30px 20px}.empty-state h1{font-size:25px}.empty-state .privacy-hint{font-size:9px}.document-toolbar{padding:12px;gap:8px;align-items:flex-start}.document-heading .eyebrow{font-size:8px}.document-heading h1{font-size:12px;max-width:42vw}.document-actions button{padding:6px 7px;font-size:10px;min-height:31px}.document-actions #retranslate{display:none}.page-toolbar{padding:7px;min-height:44px}.task-status{font-size:9px;max-width:135px}.segment-label{font-size:9px}.explanation-panel{position:absolute;right:0;top:0;bottom:0;width:min(320px,90%);box-shadow:-8px 0 22px #32442318}.page-range{gap:10px}dialog{padding:22px}.demo-banner{font-size:10px;line-height:1.5;padding:7px 12px}.demo-banner:not([hidden])~.app-screen{height:calc(100vh - 29px)}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}


.layout-select{min-height:29px;height:29px;width:122px;font-size:10px;padding:3px 6px;background:#fcfdf9;border-radius:5px;flex-shrink:0}.reader-content #reader-host:focus{outline:none}#load-demo{font-size:10px;line-height:1.5;margin-bottom:16px}@media(max-width:760px){.layout-select{width:94px;font-size:9px}#load-demo{margin:0;font-size:9px;grid-column:1/-1}.library:has(#load-demo:not([hidden])) .upload-status{grid-row:3}.page-toolbar{flex-wrap:wrap}.task-status{margin-left:auto;max-width:180px}}

@media(max-width:760px){.library .document-list{grid-column:2;grid-row:1}.library #load-demo{grid-row:2}.library .upload-status{grid-row:3}}

.document-row{display:flex;align-items:center;gap:3px;min-width:0;margin-bottom:6px}.document-row .document-card{flex:1;min-width:0;width:auto;margin:0}.document-delete{flex-shrink:0;min-width:34px;min-height:34px;padding:5px 2px;border:1px solid transparent;border-radius:6px;background:transparent;color:#99645d;font-size:10px}.document-delete:hover{color:var(--error);background:#f8eae6;border-color:#efd4cc}.library-manage{align-self:flex-start;font-size:11px;min-height:34px;padding:7px 3px;text-decoration:underline;text-underline-offset:3px}.library-manage[aria-pressed=true]{color:var(--green);font-weight:600}.delete-document-name{font-size:14px;font-weight:600;line-height:1.6;overflow-wrap:anywhere;margin:0}.delete-dialog .notice-box{margin-top:16px}.danger-button{background:#93483f}.danger-button:hover{background:#753a33}.delete-dialog .dialog-heading>div{min-width:0}.delete-dialog .dialog-heading>.icon-button{flex-shrink:0}
@media(max-width:760px){.document-row{flex-shrink:0;width:170px;margin:0}.document-row.managing{width:206px}.document-delete{min-height:38px}.library #manage-storage{grid-column:1/-1;grid-row:3;justify-self:start;min-height:30px;padding:4px 0;margin:0}.library .upload-status,.library:has(#load-demo:not([hidden])) .upload-status{grid-row:4}.delete-dialog .dialog-actions{flex-wrap:wrap}.delete-dialog .dialog-heading h2{font-size:20px}}

/* Keep the library accessible while letting the reader use the whole window. */
.library-toggle{display:inline-flex;align-items:center;gap:7px;flex-shrink:0;white-space:nowrap;font-size:12px;padding:8px 11px;min-height:38px}
.app-layout.library-collapsed{grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(0,1fr)}
@media(max-width:760px){.library-toggle{font-size:11px;padding:7px 9px;min-height:34px}.app-header .brand{gap:6px}.app-header .brand-icon{display:none}}
@media(max-width:380px){.app-header{padding:0 9px;gap:6px}.app-header .brand small{display:none}.header-actions .secondary{padding:7px}.library-toggle{padding:7px}}

/* Reading keeps only the document and its everyday controls above the page. */
.app-header{height:64px;padding:0 20px;gap:14px;position:relative;z-index:3}
.header-actions{flex-shrink:0;gap:0}
.app-header .document-toolbar{flex:1;min-width:0;padding:0;border:0;gap:14px;background:transparent}
.app-header .document-heading{flex:1;min-width:0}
.app-header .document-heading h1{font-size:14px;max-width:none;line-height:1.4}
.reading-active .app-header{height:56px;gap:12px}
.reading-active .app-header>.brand,.reading-active .app-header>.edition-tag{display:none}
.reading-active .header-actions{margin-left:0}
.reading-active .library-toggle{min-height:34px}
.toolbar-menu{position:relative;flex-shrink:0}
.toolbar-menu>summary{display:flex;align-items:center;justify-content:center;gap:6px;list-style:none;cursor:pointer;white-space:nowrap;border:1px solid #d6ddd1;border-radius:8px;background:#fff;color:var(--ink);font-size:12px;font-weight:600;min-height:34px;padding:7px 11px}
.toolbar-menu>summary::-webkit-details-marker{display:none}
.toolbar-menu>summary:hover,.toolbar-menu[open]>summary{background:#edf3e8;border-color:#a6b9a0}
.toolbar-popover{position:absolute;right:0;top:calc(100% + 8px);z-index:20;width:min(280px,calc(100vw - 24px));padding:16px;border:1px solid #d6dfcf;border-radius:12px;background:#fff;box-shadow:0 10px 36px #19352826;max-height:calc(100dvh - 120px);overflow:auto;overscroll-behavior:contain}
.account-popover{display:flex;flex-direction:column;gap:10px;width:min(248px,calc(100vw - 24px))}
.account-popover .user-name{display:block;max-width:none;white-space:normal;overflow-wrap:anywhere;font-size:13px}
.account-popover .model-summary{display:block;max-width:none;white-space:normal;overflow:visible;line-height:1.6}
.account-popover button{text-align:left;min-height:38px}
.reader-shell>.page-toolbar{flex-shrink:0;min-height:44px;padding:5px 20px;gap:12px;position:relative;z-index:2}
.page-toolbar .task-status{flex:1;min-width:0;max-width:none;margin-left:auto;overflow-wrap:anywhere}
.reader-tools-popover .eyebrow{font-size:10px}
.reader-document-name{font-size:12px;font-weight:600;line-height:1.6;overflow-wrap:anywhere;margin:8px 0 16px}
.reader-tools-popover label{font-size:11px;margin:0 0 7px}
.reader-tools-popover .layout-select{width:100%;min-height:36px;height:auto;font-size:12px;padding:6px 8px}
.reader-tools-popover #retranslate{display:block;margin-top:14px;width:100%;min-height:36px}
.reader-tools-popover .correspondence-help{display:block;line-height:1.7;margin:12px 0 0;font-size:11px}
@media(max-width:760px){
  .app-header{height:56px;padding:0 10px;gap:8px}
  .reading-active .app-header{height:56px;padding:0 10px;gap:6px}
  .reading-active .library-toggle{width:34px;justify-content:center;padding:6px;position:relative}
  .reading-active #library-toggle-label{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
  .app-header .document-toolbar{gap:6px;align-items:center}
  .app-header .document-heading h1{font-size:12px}
  .app-header .document-actions{gap:4px}
  .app-header .document-actions button{font-size:10px;padding:6px 7px;min-height:34px;white-space:nowrap}
  .toolbar-menu>summary{font-size:11px;padding:7px 8px;gap:4px}
  .reader-shell>.page-toolbar{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:3px 8px;padding:4px 10px 5px}
  .page-toolbar .pagination{grid-column:1;grid-row:1;min-width:0;gap:3px}
  .pagination .icon-button,.pagination form{flex-shrink:0}
  .pagination .segment-label{flex-shrink:1;min-width:0;overflow-wrap:anywhere}
  #reader-tools{grid-column:2;grid-row:1}
  .page-toolbar .task-status{grid-column:1/-1;grid-row:2;width:100%;font-size:10px;text-align:left;line-height:1.5}
  .page-toolbar .task-status:empty{display:none}
  .account-popover .secondary{font-size:12px;padding:9px 12px}
}

/* Keep a visible exit from distraction-free reading at every viewport width. */
.reader-toolbar-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}
#toggle-reader-focus{font-size:12px;min-height:34px;padding:7px 10px;white-space:nowrap}
#toggle-reader-focus[aria-pressed="true"]{background:#e1ebdc;border-color:#91a885}
@media(max-width:760px){
  .page-toolbar .reader-toolbar-actions{grid-column:2;grid-row:1;gap:5px}
  #toggle-reader-focus{font-size:11px;padding:7px 7px}
}

/* Model connection settings: narrow dialogs scroll rather than clip fields. */
.settings-dialog{max-height:min(90vh,calc(100dvh - 24px));overscroll-behavior:contain}
.settings-dialog form,.settings-dialog .model-choice>span,.settings-dialog .dialog-heading>div{min-width:0}
.settings-dialog .field-help,.settings-dialog .notice-box,.settings-dialog .checkbox-label{overflow-wrap:anywhere}
.settings-dialog .dialog-heading>.icon-button{flex-shrink:0}
.custom-model-fields{margin-top:16px;padding:14px;border:1px solid var(--line);border-radius:9px;background:var(--paper);min-width:0}
.api-presets{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.api-presets>span{font-size:12px;color:var(--muted);width:100%}
.api-presets button{font-size:12px;min-height:38px}
.settings-dialog input:not([type=checkbox]):not([type=radio]),.settings-dialog select{min-width:0;max-width:100%}
@media(max-width:400px){.settings-dialog{width:calc(100vw - 24px);padding:18px 14px}.custom-model-fields{padding:12px}.settings-dialog .dialog-actions{flex-wrap:wrap}.settings-dialog .dialog-actions>button{flex:1}.settings-dialog .dialog-heading{gap:10px}}

/* Paper tools reuse the existing reader and dialogs, leaving the reading area clear. */
.paper-upload{margin-top:8px}.paper-tools{display:grid;gap:7px;margin:10px 0}.paper-dialog{width:min(660px,calc(100vw - 28px));max-height:calc(100dvh - 32px);overscroll-behavior:contain}
.paper-dialog section,.paper-dialog form,.paper-dialog .dialog-heading>div{min-width:0}.paper-dialog .dialog-heading>.icon-button{flex-shrink:0}.paper-dialog textarea{display:block;resize:vertical;width:100%;min-width:0;max-width:100%;padding:10px 12px;border:1px solid #d3dacf;border-radius:8px;background:white;font:inherit;font-size:13px;line-height:1.7;color:var(--ink)}
.paper-dialog textarea:focus{outline:2px solid #a4c2a8;outline-offset:1px}.paper-dialog textarea[readonly]{background:#f5f7f0}.paper-dialog .field-help{overflow-wrap:anywhere}.paper-results{display:grid;gap:9px;margin-top:12px}.paper-result{width:100%;min-width:0;text-align:left;white-space:normal;overflow-wrap:anywhere;font-weight:400}.paper-result strong{font-size:12px;font-weight:600;display:block;line-height:1.7}.paper-result span{display:block;font-size:12px;line-height:1.7;margin-top:5px}.paper-figure-card{border:1px solid var(--line);border-radius:8px;padding:12px;min-width:0}.paper-figure-card img{display:block;max-width:100%;max-height:360px;object-fit:contain;margin:0 auto 10px}.paper-figure-card p{font-size:12px;line-height:1.7;overflow-wrap:anywhere}.paper-dialog #paper-block{overflow:hidden;text-overflow:ellipsis}
@media(max-width:760px){.library .paper-upload{grid-column:1;grid-row:2;margin-top:0}.library .document-list{grid-column:2;grid-row:1/3}.library #load-demo{grid-row:3}.library #manage-storage{grid-row:4}.library .upload-status,.library:has(#load-demo:not([hidden])) .upload-status{grid-row:5}.paper-dialog{padding:18px 14px}.paper-dialog .dialog-heading{gap:10px}.paper-dialog .dialog-heading h2{font-size:20px}}

/* Keep direct page navigation visible without taking another toolbar row. */
.pagination #jump-page{min-height:29px;height:29px;padding:3px 7px;font-size:11px;white-space:nowrap}