@charset "UTF-8";
:root{--canvas:#fafaf7;--surface:#fff;--surface-soft:#f0f1ec;--surface-card:#e9ebe4;--ink:#252b27;--body:#50574f;--muted:#858b81;--line:#e0e4da;--primary:#92523c;--accent:#b17256;--accent-soft:#ece8df;--green:#687c66;--sidebar-width:232px;--font:"Avenir Next","Microsoft YaHei UI","Microsoft YaHei",sans-serif;--serif:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;color-scheme:light}
:root[data-theme=dark]{--canvas:#191b18;--surface:#20231e;--surface-soft:#20241e;--surface-card:#30362c;--ink:#e7ebe0;--body:#bdc6b6;--muted:#8e9987;--line:#343c2f;--primary:#d4aa87;--accent:#bf9573;--accent-soft:#35372c;--green:#91ab86;color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:94px}body{margin:0;background:var(--canvas);color:var(--ink);font:14px/1.65 var(--font);-webkit-font-smoothing:antialiased}button,input,textarea,select{font:inherit}button,input,textarea,select,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit;border:0;background:none}a{color:inherit;text-decoration:none}button:disabled{opacity:.5;cursor:wait}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:3px}h1,h2,h3,p{margin:0}svg{display:block}.icon{width:18px;height:18px;flex:none}small{font-size:11px}.muted{color:var(--muted)}[hidden]{display:none!important}.eyebrow{font-size:12px;color:var(--muted)}.tiny-label{font-size:10px}kbd{font:10px var(--font);color:var(--muted);border:1px solid var(--line);padding:2px 5px;border-radius:3px;white-space:nowrap}.skip-link{position:fixed;top:-80px;left:20px;background:var(--surface);padding:12px;z-index:200}.skip-link:focus{top:10px}
.icon-button{width:30px;height:30px;display:inline-flex;align-items:center;justify-content:center;color:var(--muted);border-radius:4px;flex:none}.icon-button:hover{background:var(--surface-soft);color:var(--ink)}.icon-button .icon{width:17px;height:17px}.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:9px 15px;border-radius:4px;font-size:12px;font-weight:500;white-space:nowrap;border:1px solid transparent}.button.small{padding:8px 13px}.button.primary{background:#6e513e;color:#fff;border-color:#6e513e}.button.primary:hover{background:#59402f}.button.secondary{background:var(--surface);border-color:var(--line);color:var(--body)}.button.secondary:hover{border-color:var(--accent);color:var(--ink)}.button .icon{width:15px;height:15px}.text-link,.quiet-link{display:inline-flex;align-items:center;gap:7px;font-size:12px;color:var(--body)}.text-link:hover,.quiet-link:hover{color:var(--primary)}.text-link .icon,.quiet-link .icon{width:13px;height:13px}.quiet-link{font-size:11px;color:var(--muted)}

/* Workspace navigation */
.sidebar{position:fixed;inset:0 auto 0 0;width:var(--sidebar-width);background:var(--surface-soft);border-right:1px solid var(--line);display:flex;flex-direction:column;padding:30px 19px 16px;z-index:40;overflow-y:auto;scrollbar-width:thin}.brand{display:flex;align-items:center;gap:10px;padding:0 7px}.brand-mark{display:flex;align-items:center;justify-content:center;width:32px;height:38px;color:#796852}.brand-mark svg{width:32px;height:32px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.brand strong{font-size:19px;font-weight:600;letter-spacing:1px}.brand small{display:block;font-size:10px;color:var(--muted);margin-top:1px;letter-spacing:2px}.workspace-label{padding:20px 10px 25px;display:flex;align-items:center;gap:7px;color:var(--muted);font-size:11px}.status-dot{width:5px;height:5px;background:var(--green);border-radius:50%;display:inline-block;flex:none}.nav-link{display:flex;align-items:center;gap:11px;padding:8px 11px;min-height:38px;margin:2px 0;border-radius:3px;color:var(--body);font-size:12px;position:relative}.nav-link>.icon{width:16px;height:16px;color:var(--muted)}.nav-link:hover{background:var(--surface-card)}.nav-link.active{background:var(--surface-card);color:var(--ink);font-weight:600}.nav-link.active:before{content:"";position:absolute;width:2px;top:10px;bottom:10px;left:0;background:var(--primary)}.nav-link.active>.icon{color:var(--primary)}.nav-link .count{margin-left:auto;font-size:10px;font-weight:400;color:var(--muted)}.nav-section{margin-top:25px}.nav-section-title{display:flex;align-items:center;justify-content:space-between;gap:9px;margin:0 9px 9px;padding-bottom:9px;border-bottom:1px solid var(--line);min-height:33px}.nav-section-title>span:last-child{font-size:10px;color:var(--muted)}.nav-section .nav-link{padding-left:17px;min-height:34px;font-size:12px}.group-name{font-size:12px;min-width:33px}.group-subtitle{font-size:11px;color:var(--muted);font-weight:400}.sidebar-bottom{margin-top:auto;padding-top:29px}.sidebar-bottom>.nav-link{border-top:1px solid var(--line);border-radius:0;padding-top:16px;margin-bottom:17px}.sidebar-bottom>.nav-link>.icon:last-child{width:12px;height:12px;margin-left:auto}.theme-switch{display:flex;width:113px;padding:3px;background:var(--canvas);border:1px solid var(--line);border-radius:4px;margin-left:10px}.theme-switch button{flex:1;height:25px;line-height:23px;font-size:17px;color:var(--muted);border-radius:2px}.theme-switch button[aria-pressed=true]{background:var(--surface-card);color:var(--ink)}.sidebar-footnote{display:flex;justify-content:space-between;font-size:10px;color:var(--muted);padding:16px 10px 0}.sidebar-footnote span{font-size:9px}.loading-label{font-size:12px;color:var(--muted);padding:12px}
.organization-mark{display:inline-flex;align-items:center;justify-content:center;flex:none;overflow:hidden;background:#fff}.organization-mark img{display:block;width:100%;height:100%;object-fit:contain}.nav-mark.mark-3gpp{width:49px;height:26px;padding:1px 3px}.nav-mark.mark-ccsa{width:111px;height:23px;padding:3px}.directory-mark.mark-3gpp{width:89px;height:46px}.directory-mark.mark-ccsa{width:231px;height:40px;padding:3px}.organization-mark.mini{width:46px;height:24px;padding:2px 3px;border:1px solid #f0f0eb}.organization-mark.mini.mark-ccsa{width:91px;height:21px}.source-mark.mark-3gpp{width:77px;height:40px}.source-mark.mark-ccsa{width:220px;height:34px;padding:3px}

/* Main frame */
.app-shell{margin-left:var(--sidebar-width);min-height:100vh;display:flex;flex-direction:column}.topbar{height:72px;padding:0 39px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:18px;position:sticky;top:0;background:var(--canvas);z-index:30}.breadcrumb{display:flex;gap:13px;align-items:center;font-size:12px;white-space:nowrap}.breadcrumb>span:first-child{color:var(--muted)}.breadcrumb .slash{color:var(--line)}.breadcrumb strong{font-size:12px;font-weight:500;max-width:170px;overflow:hidden;text-overflow:ellipsis}.topbar-actions{display:flex;gap:18px;align-items:center}.global-search{display:flex;gap:9px;align-items:center;color:var(--muted);padding:0 10px;min-width:320px;height:35px;background:var(--surface);border:1px solid var(--line);border-radius:4px}.global-search .icon{width:14px;height:14px}.global-search input{border:0;background:transparent;color:var(--ink);font-size:11px;width:230px;padding:5px 0;outline:none}.global-search input::placeholder{color:var(--muted)}.global-search input:focus-visible{outline:none}.global-search:focus-within{border-color:var(--accent)}.global-search kbd{margin-left:auto}.mobile-menu{display:none}#main{padding:33px 39px 55px;max-width:1470px;width:100%;margin:0 auto;flex:1;outline:none}.app-footer{display:flex;justify-content:space-between;font-size:10px;color:var(--muted);margin:0 39px;padding:17px 0;border-top:1px solid var(--line)}.page-intro{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}.page-intro h1{font-size:27px;letter-spacing:.2px;font-weight:600;line-height:1.5}.page-intro p{font-size:12px;color:var(--muted);margin-top:7px}.date-stamp{text-align:right;padding-bottom:2px}.date-stamp strong{font-size:12px;color:var(--body);font-weight:400;display:block}.date-stamp span{font-size:11px;color:var(--muted);display:block;margin-top:3px}

/* Organizations and direct working-group navigation */
.standards-directory{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:36px}.organization-panel{border:1px solid var(--line);background:var(--surface);border-radius:4px;padding:21px 23px 0;min-width:0}.organization-header{display:flex;align-items:center;justify-content:space-between;gap:15px;height:48px}.organization-header>.quiet-link{white-space:nowrap}.organization-description{font-size:11px;color:var(--muted);margin-top:10px}.working-group-links{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin:22px 0 20px;gap:0}.working-group-links>a{display:flex;flex-direction:column;border-right:1px solid var(--line);padding-left:16px;gap:3px;position:relative}.working-group-links>a:first-child{padding-left:0}.working-group-links>a:last-child{border:0}.working-group-links>a strong{font-size:17px;font-weight:500;color:var(--ink);line-height:1.5;letter-spacing:.3px}.working-group-links>a span{font-size:11px;color:var(--body)}.working-group-links>a small{font-size:10px;color:var(--muted);margin-top:5px}.working-group-links>a:hover strong,.working-group-links>a:hover span{color:var(--primary)}.panel-ccsa .working-group-links{grid-template-columns:1fr 1fr;min-height:77px}.panel-ccsa .working-group-links>a{justify-content:center;gap:6px}.panel-ccsa .working-group-links>a strong{font-size:16px;letter-spacing:0}.panel-ccsa .working-group-links>a small{margin-top:0}.organization-footer{display:flex;align-items:center;justify-content:space-between;gap:10px;border-top:1px solid var(--line);padding:11px 0;font-size:10px;color:var(--muted)}.organization-footer a{display:flex;align-items:center;gap:6px;color:var(--body)}.organization-footer a:hover{color:var(--primary)}.organization-footer .icon{width:11px;height:11px}.organization-footer>span{font-size:9px}

/* Library and recent research */
.dashboard-columns{display:grid;grid-template-columns:minmax(0,1fr) 258px;gap:39px;align-items:start}.dashboard-right{border-left:1px solid var(--line);padding-left:26px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:17px;min-height:25px}.section-heading h2{font-size:15px;font-weight:600;letter-spacing:.2px}.section-heading h2 small{font-size:11px;font-weight:400;color:var(--muted);margin-left:8px}.section-heading .text-link{font-size:11px}.side-panel+.side-panel{margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}.side-panel .section-heading{margin-bottom:9px}.side-panel h2{font-size:13px}.compact-sources>a{display:flex;align-items:center;justify-content:space-between;padding:10px 0;color:var(--body);font-size:12px}.compact-sources>a>.icon{width:12px;height:12px;color:var(--muted)}.compact-sources>a:hover{color:var(--primary)}.topic-list>a{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12px;padding:8px 0;color:var(--body)}.topic-list>a:hover{color:var(--primary)}.topic-list>a small{font-size:11px;color:var(--muted)}.panel-note{font-size:11px;color:var(--muted);line-height:1.9;margin-top:10px}.resume-card{display:flex;align-items:center;gap:13px;padding:13px 17px;background:var(--surface-soft);border-left:2px solid var(--accent);margin:0 0 28px}.resume-card>.icon{color:var(--muted);width:16px;height:16px}.resume-card strong{font-size:12px;font-weight:500}.resume-card small{display:block;color:var(--muted);font-size:10px}.resume-card>.text-link{margin-left:auto;white-space:nowrap;font-size:11px}
.note-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.dashboard-columns .note-grid{grid-template-columns:1fr}.note-card{border:1px solid var(--line);background:var(--surface);border-radius:4px;padding:20px 22px 16px;position:relative;min-width:0;overflow:hidden}.note-card:hover{border-color:#b9c1b2}.note-card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.note-source{display:inline-flex;align-items:center;gap:10px;min-width:0;color:var(--muted);font-size:11px}.note-source b{font-weight:400;color:var(--line);margin:0 4px}.card-tools{display:flex;align-items:center;gap:3px}.favorite-button .icon{width:16px;height:16px}.favorite-button.selected{color:var(--primary)}.favorite-button.selected .icon{fill:var(--accent-soft)}.pin-indicator{color:var(--primary);padding:0 6px}.pin-indicator .icon{width:13px;height:13px}.note-title{display:block;color:var(--ink)}.note-title:hover{color:var(--primary)}.note-title h3{font-size:19px;line-height:1.75;font-weight:600;letter-spacing:.1px}.note-summary{font-size:12px;color:var(--body);line-height:1.95;margin-top:11px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.note-tags{display:flex;align-items:center;gap:0;flex-wrap:wrap;margin-top:17px;font-size:11px;color:var(--muted)}.note-tags>a,.note-tags>span{padding:0 10px;border-right:1px solid var(--line);line-height:1.2;margin:3px 0}.note-tags>a:first-child,.note-tags>span:first-child{padding-left:0}.note-tags>a:last-child,.note-tags>span:last-child{border:0}.note-tags>a:hover{color:var(--primary)}.note-card-bottom{display:flex;align-items:center;gap:13px;border-top:1px solid var(--line);padding-top:14px;margin-top:21px;font-size:10px;color:var(--muted)}.note-card-bottom>span:first-child{margin-right:auto}.note-card-bottom b{font-weight:400;margin:0 8px}.status-badge{display:inline-flex;align-items:center;gap:6px;font-size:10px;white-space:nowrap;color:var(--muted)}.status-badge>span{width:4px;height:4px;border-radius:50%;background:#af9d79}.status-badge.verified>span{background:var(--green)}.status-badge.needs-update>span{background:var(--accent)}.read-arrow{display:flex;gap:7px;align-items:center;font-size:10px;color:var(--body);white-space:nowrap}.read-arrow:hover{color:var(--primary)}.read-arrow .icon{width:13px;height:13px}.card-progress{height:2px;background:var(--surface-soft);position:absolute;left:0;right:0;bottom:0}.card-progress span{display:block;height:100%;background:var(--accent)}.recent-research>.section-heading{margin-bottom:0;border-bottom:1px solid var(--line);padding-bottom:15px}.recent-research .note-card{border:0;border-bottom:1px solid var(--line);background:transparent;border-radius:0;padding:23px 0 22px}.recent-research .note-card-bottom{border-top:0;margin-top:18px;padding-top:0}.recent-research .note-card:hover .note-title{color:var(--primary)}.recent-research .note-grid{gap:0}.note-grid.list-view{grid-template-columns:1fr}.list-view .note-card{padding:17px 20px}.list-view .note-card-top{margin-bottom:9px}.list-view .note-title h3{font-size:17px}.list-view .note-summary{-webkit-line-clamp:1;margin-top:7px}.list-view .note-card-bottom{margin-top:14px;padding-top:11px}.recent-research .list-view .note-card{padding:20px 0}
.tools{display:flex;align-items:center;gap:8px}.tools select{border:0;background:transparent;font-size:11px;color:var(--muted);padding:5px;max-width:150px}.view-switch{display:flex;padding:2px;border:1px solid var(--line);border-radius:3px;gap:2px}.view-switch button{display:flex;align-items:center;justify-content:center;color:var(--muted);width:27px;height:25px;border-radius:2px}.view-switch button[aria-pressed=true]{background:var(--surface-soft);color:var(--ink)}.view-switch .icon{width:13px;height:13px}.filter-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:15px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:24px}.filter-bar select{border:1px solid var(--line);border-radius:3px;background:var(--surface);color:var(--body);padding:6px 10px;font-size:11px;max-width:200px}.filter-bar .result-count{margin-left:auto;font-size:11px;color:var(--muted)}.active-search{font-size:12px;color:var(--body);margin-bottom:17px}.quick-strip{display:flex;align-items:center;gap:9px;margin:0 0 21px;flex-wrap:wrap}.quick-link{display:inline-flex;align-items:center;gap:7px;font-size:11px;color:var(--body);padding:8px 12px;border:1px solid var(--line);background:var(--surface);border-radius:3px}.quick-link:hover{color:var(--primary);border-color:var(--accent)}.quick-link .icon{width:12px;height:12px}

/* Topics and original sources */
.topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.topic-card{position:relative;padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:4px}.topic-card:hover{border-color:var(--accent)}.topic-index{font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}.topic-card h2{font-size:23px;font-weight:500;line-height:1.5;margin:21px 0 8px}.topic-card p{font-size:12px;color:var(--muted)}.topic-card>.icon{position:absolute;bottom:25px;right:24px;width:15px;height:15px;color:var(--muted)}.source-category{display:flex;align-items:center;gap:23px;margin:33px 0 19px;padding-bottom:15px;border-bottom:1px solid var(--line);font-size:13px;font-weight:400;color:var(--muted)}.source-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 32px}.source-tile{display:flex;align-items:center;gap:13px;padding:18px 0;border-bottom:1px solid var(--line);min-width:0}.source-symbol{display:flex;align-items:center;justify-content:center;width:32px;height:35px;flex:none;color:var(--muted)}.source-symbol .icon{width:19px;height:19px}.source-tile strong{display:block;font-size:13px;font-weight:500}.source-tile small{display:block;font-size:11px;color:var(--muted);margin-top:4px}.source-tile>.icon{width:12px;height:12px;color:var(--muted);margin-left:auto}.source-tile:hover strong{color:var(--primary)}.source-callout{display:flex;align-items:center;gap:11px;color:var(--muted);padding:20px 0;font-size:11px;margin-top:18px}.source-callout>.icon{width:14px;height:14px}.issues-box{padding:13px 16px;border-left:2px solid var(--accent);background:var(--surface-soft);font-size:11px;color:var(--muted);margin:20px 0}.issues-box summary{cursor:pointer;color:var(--body)}.issues-box ul{padding-left:17px;margin:10px 0}.empty-state{text-align:center;border:1px dashed var(--line);border-radius:4px;padding:48px 24px;background:transparent}.empty-state>span{display:inline-flex;color:var(--muted);margin-bottom:17px}.empty-state>span>.icon{width:28px;height:28px;stroke-width:1.2}.empty-state h3{font-size:17px;font-weight:500}.empty-state p{font-size:12px;color:var(--muted);line-height:1.9;margin:10px auto 21px;max-width:410px}.empty-state .text-link{display:block;margin-top:14px;font-size:11px}

/* Reader */
.reader-back{display:inline-flex;align-items:center;gap:8px;color:var(--muted);font-size:12px;margin-bottom:27px}.reader-back:hover{color:var(--primary)}.reader-back .icon{width:14px;height:14px}.reader-layout{display:grid;grid-template-columns:minmax(0,1fr) 218px;gap:37px;align-items:start}.reader-header{border-bottom:1px solid var(--line);padding-bottom:27px}.reader-eyebrow{display:flex;align-items:center;gap:18px}.group-label{font-size:11px;color:var(--body)}.group-label b{font-weight:400;color:var(--muted);margin:0 9px}.reader-header h1{font:600 clamp(23px,2vw,30px)/1.7 var(--serif);margin:18px 0 14px;letter-spacing:.3px}.reader-summary{font-size:13px;line-height:1.95;color:var(--body);max-width:800px}.reader-meta{display:flex;gap:8px 17px;align-items:center;flex-wrap:wrap;font-size:11px;color:var(--muted);margin-top:19px}.reader-meta>span{display:flex;gap:6px;align-items:center}.reader-meta .icon{width:13px;height:13px}.reader-header .note-tags{margin-top:17px}.reader-coverage{margin-top:19px;padding:10px 13px;border-left:2px solid var(--accent);background:var(--surface-soft);font-size:11px;color:var(--muted)}.reader-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:21px}.reader-actions .button{font-size:11px;padding:7px 11px}.reader-actions .selected{color:var(--primary);border-color:var(--accent)}.reader-actions .selected .icon{fill:var(--accent-soft)}.reader-frame{border:0;display:block;width:100%;min-height:300px;background:var(--canvas);margin-top:26px}.reader-aside{position:sticky;top:99px;max-height:calc(100vh - 125px);overflow-y:auto;scrollbar-width:thin}.reader-aside h2{font-size:12px;font-weight:600;margin-bottom:14px}.toc-list{padding-left:13px;border-left:1px solid var(--line);max-height:40vh;overflow:auto;scrollbar-width:thin}.toc-list button{display:block;text-align:left;color:var(--muted);padding:5px 0;font-size:11px;line-height:1.65;max-width:100%}.toc-list button:hover,.toc-list button.active{color:var(--primary)}.toc-list .toc-sub{padding-left:9px;font-size:10px}.toc-list .toc-deep{padding-left:18px;font-size:10px}.annotation-block{margin-top:25px;padding-top:22px;border-top:1px solid var(--line)}.annotation-block h2{display:flex;align-items:center;justify-content:space-between}.annotation-block h2 span{font-size:9px;color:var(--muted);font-weight:400}.annotation-block textarea{width:100%;min-height:135px;border:1px solid var(--line);border-radius:3px;background:var(--surface);color:var(--body);font-size:12px;padding:10px;line-height:1.95;resize:vertical}.annotation-block textarea::placeholder{color:var(--muted)}.annotation-block .button{font-size:10px;padding:6px 10px;margin-top:9px}.annotation-hint{font-size:10px;color:var(--muted);line-height:1.8;margin-top:10px}.read-progress-label{display:flex;justify-content:space-between;font-size:10px;color:var(--muted);margin:21px 0 7px}.read-progress-bar{height:2px;background:var(--line)}.read-progress-bar span{display:block;height:100%;background:var(--accent)}.reader-origin{border-top:1px solid var(--line);padding:17px 0;font-size:10px;color:var(--muted);line-height:1.9;margin-top:22px}.reader-source-link{display:flex;align-items:center;gap:7px;font-size:10px;color:var(--body);margin-top:20px}.reader-source-link .icon{width:12px;height:12px}

/* Dialogs and status */
dialog{color:var(--ink);background:var(--canvas);border:1px solid var(--line);border-radius:6px;box-shadow:0 15px 70px #00000024}dialog::backdrop{background:#11150f80;backdrop-filter:blur(2px)}.import-dialog{width:500px;max-width:calc(100vw - 30px);padding:27px 31px}.dialog-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.dialog-header>.icon-button{font-size:24px}.import-dialog h2{font-size:24px;font-weight:500;margin-bottom:12px}.import-dialog>p{font-size:12px;line-height:1.9}.drop-zone{display:flex;position:relative;flex-direction:column;align-items:center;justify-content:center;gap:9px;padding:30px 20px;margin:24px 0 15px;border:1px dashed #afb9a6;border-radius:4px;background:var(--surface-soft);cursor:pointer}.drop-zone.dragging{border-color:var(--accent);background:var(--accent-soft)}.drop-zone .icon{width:24px;height:24px;color:var(--muted);margin-bottom:5px}.drop-zone strong{font-size:13px;font-weight:500}.drop-zone>span:last-of-type{font-size:11px;color:var(--muted)}.drop-zone input{position:absolute;inset:0;width:100%;opacity:0;cursor:pointer}.drop-zone:focus-within{outline:2px solid var(--accent);outline-offset:3px}.import-result{font-size:12px;line-height:1.9;color:var(--body);overflow-wrap:anywhere}.import-result.error{color:var(--primary)}.import-result a{color:var(--primary);text-decoration:underline}.import-help{border-top:1px solid var(--line);margin-top:23px;padding-top:19px}.import-help strong{font-size:12px;font-weight:500}.import-help p{font-size:11px;color:var(--muted);line-height:1.9;margin:6px 0 12px}.import-help .text-link{font-size:11px}.image-dialog{max-width:96vw;max-height:94vh;padding:20px}.image-dialog .icon-button{position:absolute;top:7px;right:7px;background:var(--surface);font-size:22px}.image-dialog img{max-width:88vw;max-height:85vh;object-fit:contain}.toast{position:fixed;bottom:28px;left:calc(50% + var(--sidebar-width)/2);transform:translateX(-50%);background:var(--ink);color:var(--canvas);font-size:12px;padding:11px 20px;border-radius:4px;z-index:100;max-width:calc(100vw - 40px);text-align:center}.initial-loading{text-align:center;padding:100px 20px;font-size:12px;color:var(--muted)}.loading-orbit{display:inline-block;height:26px;width:26px;border:1px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:17px}.sidebar-shade{display:none}@keyframes spin{to{transform:rotate(360deg)}}

@media(min-width:1550px){.topbar{padding:0 49px}#main{padding:39px 49px 60px}.app-footer{margin:0 49px}.dashboard-columns{grid-template-columns:minmax(0,1fr) 290px;gap:45px}.standards-directory{gap:25px}.organization-panel{padding:24px 27px 0}.working-group-links>a{padding-left:22px}.organization-header{height:54px}.working-group-links{margin-top:25px;margin-bottom:23px}.note-title h3{font-size:21px}}
@media(max-width:1180px){:root{--sidebar-width:210px}.sidebar{padding:27px 13px 16px}.topbar{padding:0 26px}#main{padding:29px 26px 45px}.app-footer{margin:0 26px}.global-search{min-width:250px}.global-search input{width:190px}.global-search kbd{display:none}.topbar-actions{gap:12px}.organization-panel{padding:18px 18px 0}.standards-directory{gap:16px}.directory-mark.mark-ccsa{width:180px;height:34px}.directory-mark.mark-3gpp{width:78px;height:42px}.organization-header>.quiet-link{font-size:10px;gap:4px}.working-group-links>a{padding-left:12px}.working-group-links>a strong{font-size:16px}.working-group-links>a span{font-size:10px}.organization-footer>span{display:none}.dashboard-columns{grid-template-columns:minmax(0,1fr) 220px;gap:26px}.dashboard-right{padding-left:22px}.reader-layout{grid-template-columns:minmax(0,1fr) 190px;gap:25px}.note-grid{grid-template-columns:1fr}.source-grid{gap:0 22px}.breadcrumb strong{max-width:100px}.note-title h3{font-size:18px}.note-card-bottom{gap:10px;font-size:9px}}
@media(max-width:980px){.standards-directory{grid-template-columns:1fr}.organization-panel{padding:19px 22px 0}.organization-header{height:43px}.directory-mark.mark-ccsa{width:220px;height:35px}.working-group-links{margin:19px 0}.panel-ccsa .working-group-links{min-height:64px}.organization-description{margin-top:7px}.organization-footer>span{display:block}.working-group-links>a{padding-left:25px}.working-group-links>a strong{font-size:17px}.working-group-links>a span{font-size:11px}.dashboard-columns{grid-template-columns:1fr}.dashboard-right{display:grid;grid-template-columns:1fr 1fr;gap:30px;border-left:0;padding:24px 0 0;border-top:1px solid var(--line)}.side-panel+.side-panel{margin:0;padding:0;border:0}.source-grid{grid-template-columns:1fr}.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.reader-layout{grid-template-columns:1fr}.reader-aside{position:static;max-height:none;display:grid;grid-template-columns:1fr 1fr;gap:24px;padding-top:24px;border-top:1px solid var(--line)}.annotation-block{margin:0;padding:0;border:0}.read-status{display:none}.global-search{min-width:205px}.global-search input{width:160px}.breadcrumb>span:first-child,.breadcrumb .slash{display:none}}
@media(max-width:760px){:root{--sidebar-width:232px}.sidebar{transform:translateX(-100%);transition:transform .18s}.sidebar.open{transform:translateX(0)}.sidebar-shade.open{display:block;position:fixed;inset:0;background:#10150d60;z-index:35}.app-shell{margin-left:0}.mobile-menu{display:inline-flex}.topbar{height:64px;padding:0 16px;gap:9px}.breadcrumb{margin-right:auto}.breadcrumb strong{max-width:65px;font-size:11px}.global-search{min-width:0;padding:0 8px;gap:6px;height:33px}.global-search input{width:145px;font-size:10px}.topbar-actions{gap:8px}.topbar .button{font-size:10px;padding:8px 10px;gap:5px}.topbar .button .icon{width:12px;height:12px}#main{padding:25px 20px 40px}.app-footer{margin:0 20px;font-size:9px}.page-intro{margin-bottom:24px}.page-intro h1{font-size:25px}.page-intro p{font-size:11px}.date-stamp strong{font-size:11px}.date-stamp span{font-size:10px}.standards-directory{grid-template-columns:1fr 1fr;margin-bottom:29px;gap:13px}.organization-panel{padding:16px 15px 0}.directory-mark.mark-ccsa{width:165px;height:30px}.directory-mark.mark-3gpp{width:75px;height:40px}.organization-header{height:40px;gap:8px}.organization-header>.quiet-link{font-size:9px}.organization-header>.quiet-link>.icon{width:10px;height:10px}.organization-description{font-size:10px}.working-group-links>a{padding-left:10px}.working-group-links>a span{font-size:9px}.working-group-links>a small{font-size:9px}.working-group-links>a strong{font-size:15px}.panel-ccsa .working-group-links>a strong{font-size:14px}.organization-footer>span{display:none}.organization-footer{font-size:9px}.organization-footer .icon{width:10px;height:10px}.dashboard-columns{gap:25px}.reader-header h1{font-size:24px}.reader-summary{font-size:12px}.reader-meta{font-size:10px}.reader-back{font-size:11px}.reader-coverage{font-size:10px}.filter-bar select{font-size:10px;max-width:160px}.filter-bar{gap:8px}.source-category{gap:16px;font-size:12px}.source-mark.mark-ccsa{width:180px}.note-card{padding:18px 19px}.note-title h3{font-size:18px}.toast{left:50%}.topic-card{padding:21px}.topic-card h2{font-size:21px}}
@media(max-width:580px){.standards-directory{grid-template-columns:1fr}.organization-panel{padding:17px 20px 0}.directory-mark.mark-ccsa{width:216px;height:34px}.directory-mark.mark-3gpp{width:80px;height:42px}.organization-header{height:44px}.organization-header>.quiet-link{font-size:10px}.organization-description{font-size:11px}.working-group-links>a{padding-left:18px}.working-group-links>a strong{font-size:17px}.working-group-links>a span{font-size:11px}.working-group-links>a small{font-size:10px}.working-group-links{margin:19px 0}.panel-ccsa .working-group-links{min-height:55px;margin:17px 0}.panel-ccsa .working-group-links>a strong{font-size:16px}.organization-footer{padding:10px 0;font-size:10px}.organization-footer>span{display:block;font-size:8px}.topbar{padding:0 11px;gap:6px}.global-search input{width:108px}.topbar-actions{gap:6px}.global-search{border:0;background:none;padding:0 3px}.global-search .icon{width:14px;height:14px}.breadcrumb strong{max-width:57px}.page-intro h1{font-size:24px}.date-stamp strong{font-size:10px}.date-stamp span{font-size:9px}.note-card-bottom{flex-wrap:wrap;gap:10px;font-size:9px}.note-card-bottom .status-badge{font-size:9px}.read-arrow{font-size:10px}.note-summary{font-size:12px}.dashboard-right{gap:25px;grid-template-columns:1fr 1fr}.side-panel h2{font-size:12px}.side-panel .quiet-link{font-size:10px}.compact-sources>a,.topic-list>a{font-size:11px}.topic-grid{gap:12px}.topic-card{padding:19px}.topic-card h2{font-size:20px}.reader-aside{grid-template-columns:1fr}.reader-header h1{font-size:23px}.reader-actions{gap:6px}.reader-actions .button{font-size:10px;padding:7px 9px}.source-category{flex-wrap:wrap;gap:12px}.source-category>span:last-child{font-size:11px}.source-mark.mark-ccsa{width:200px}.source-tile small{font-size:10px}.source-callout{font-size:10px}.import-dialog{padding:23px}.resume-card{gap:10px}.resume-card strong{font-size:11px}.resume-card>.text-link{font-size:10px}.resume-card>.text-link>.icon{display:none}.filter-bar .result-count{margin-left:0;margin-right:auto}.filter-bar .tools{margin-left:auto}.filter-bar select{padding:6px 7px}.tools select{max-width:112px}}
/* Keep organization marks on the page surface, including a monochrome-friendly dark treatment. */
.organization-mark{background:transparent}.organization-mark img{mix-blend-mode:multiply}.organization-mark.mini{border:0;padding:1px 0}.nav-mark.mark-ccsa{width:99px}.nav-section-title>span:last-child{white-space:nowrap;font-size:9px}
:root[data-theme=dark] .organization-mark img{filter:invert(1) hue-rotate(180deg);mix-blend-mode:screen}
@media(min-width:761px) and (max-width:980px){.standards-directory{grid-template-columns:1fr 1fr;gap:15px}.organization-panel{padding:17px 16px 0}.directory-mark.mark-ccsa{width:158px;height:32px}.directory-mark.mark-3gpp{width:75px;height:40px}.organization-header{gap:7px}.organization-header>.quiet-link{font-size:9px;gap:4px}.organization-header>.quiet-link>.icon{width:10px;height:10px}.organization-description{font-size:10px}.working-group-links>a{padding-left:10px}.working-group-links>a strong{font-size:15px}.working-group-links>a span{font-size:9px}.working-group-links>a small{font-size:9px}.panel-ccsa .working-group-links{min-height:75px}.panel-ccsa .working-group-links>a strong{font-size:14px}.organization-footer>span{display:none}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* Original documents share the library, while keeping their source format. */
.file-type{display:inline-block;font-size:10px;font-weight:600;letter-spacing:.4px;border:1px solid var(--line);background:var(--surface-soft);color:var(--body);padding:2px 7px;border-radius:2px;max-width:100px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-type.pdf-type{color:var(--primary);border-color:var(--accent);background:transparent}.file-type.large{font-size:18px;padding:12px 18px;max-width:170px}.original-filename{color:var(--muted);font-size:11px;line-height:1.8;margin-top:7px;overflow-wrap:anywhere}.original-filename>span{white-space:nowrap}.status-badge.source>span{background:var(--muted)}.document-layout{display:grid;grid-template-columns:minmax(0,1fr) 246px;gap:31px;align-items:start}.document-header{padding-bottom:23px;border-bottom:1px solid var(--line)}.document-header h1{font-size:25px;font-weight:600;line-height:1.65;margin:17px 0 9px;overflow-wrap:anywhere}.document-header .reader-eyebrow{font-size:11px;gap:13px}.document-header .reader-meta{margin-top:12px}.document-header .reader-actions{margin-top:19px}.document-group{font-size:11px;color:var(--body)}.pdf-preview{display:block;border:1px solid var(--line);width:100%;height:76vh;min-height:560px;margin-top:24px;background:var(--surface-soft)}.pdf-help{font-size:10px;line-height:1.8;color:var(--muted);margin-top:11px}.document-aside{position:sticky;top:99px;max-height:calc(100vh - 122px);overflow-y:auto;scrollbar-width:thin;padding-right:3px}.document-classification h2{font-size:12px;font-weight:600;display:flex;align-items:center;justify-content:space-between;margin:0 0 17px}.document-classification h2 span{font-weight:400;color:var(--muted);font-size:10px}.document-classification label{display:block;font-size:11px;color:var(--body);margin:13px 0 6px}.document-classification input,.document-classification select,.document-classification textarea{display:block;width:100%;border:1px solid var(--line);background:var(--surface);color:var(--body);border-radius:3px;font-size:11px;padding:8px;line-height:1.7}.document-classification textarea{resize:vertical;min-height:80px}.document-classification .button{font-size:10px;padding:7px 10px;margin-top:14px}.file-download-panel{text-align:center;border:1px solid var(--line);padding:48px 24px;background:var(--surface);margin-top:24px}.file-download-panel h2{font-size:18px;font-weight:500;margin:20px 0 10px}.file-download-panel p{font-size:12px;color:var(--muted);line-height:1.9;margin-bottom:22px}.file-download-panel .button{white-space:normal;overflow-wrap:anywhere;max-width:100%;font-size:11px}.import-group-label{display:flex;gap:11px;align-items:center;font-size:12px;color:var(--body);margin:17px 0 7px}.import-group-label span{font-size:10px;color:var(--muted)}#import-group{width:100%;border:1px solid var(--line);background:var(--surface);color:var(--body);padding:8px 10px;border-radius:3px;font-size:12px}.import-result>p{margin:9px 0}.import-result .import-error{color:var(--primary)}.import-result{margin-top:12px}.document-classification .annotation-hint{font-size:10px}
@media(max-width:1180px){.document-layout{grid-template-columns:1fr}.document-aside{position:static;max-height:none;display:grid;grid-template-columns:1fr 1fr;gap:26px;padding-top:24px;border-top:1px solid var(--line)}.document-aside .annotation-block{border:0;margin:0;padding:0}.pdf-preview{height:72vh;min-height:520px}.document-header h1{font-size:24px}}
@media(max-width:580px){.document-aside{grid-template-columns:1fr}.document-header h1{font-size:22px}.pdf-preview{min-height:440px;height:65vh}.file-download-panel{padding:35px 18px}.original-filename{font-size:10px}.document-header .reader-actions .button{font-size:10px;padding:7px 9px}.document-classification input,.document-classification select,.document-classification textarea{font-size:12px}}

.import-dialog{max-height:calc(100dvh - 32px);overflow-y:auto}.import-topics{border:0;margin:17px 0 0;padding:0;min-width:0}.import-topics legend{font-size:12px;color:var(--body);padding:0;margin-bottom:8px}.import-topics legend>span{font-size:10px;color:var(--muted);margin-left:10px}.import-topic-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px 10px}.import-topic-options label{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:3px;padding:7px 9px;font-size:11px;cursor:pointer;background:var(--surface);min-width:0}.import-topic-options label:has(input:checked){border-color:var(--accent);background:var(--accent-soft)}.import-topic-options input{margin:0;accent-color:var(--primary);flex:none}.import-topic-options span{overflow-wrap:anywhere}.import-topics:disabled{opacity:.6}
/* Shared-server sign-in keeps the same reading-oriented palette. */
.login-page{min-height:100vh;display:grid;place-items:center;padding:32px 20px;background:var(--canvas)}.login-panel{width:min(100%,420px);border-top:3px solid var(--accent);padding:36px 0}.login-identity{font-size:12px;letter-spacing:1.4px;color:var(--muted)}.login-identity span{padding:0 12px;color:var(--accent)}.login-panel h1{font-size:27px;font-weight:600;letter-spacing:-.5px;margin:22px 0 10px}.login-description{font-size:13px;line-height:1.9;color:var(--muted);margin-bottom:28px}.login-panel label{display:block;font-size:12px;margin:18px 0 8px}.login-panel input{width:100%;padding:12px;border:1px solid var(--line);border-radius:3px;background:var(--surface);color:var(--ink);font:inherit}.login-panel input:focus{outline:1px solid var(--accent);outline-offset:2px}.login-panel .button{width:100%;justify-content:center;padding:12px}.login-panel #login-message{font-size:12px;line-height:1.8;color:var(--primary);min-height:22px;margin:12px 0}.login-help{font-size:11px;color:var(--muted);margin-top:24px}.account-panel{display:flex;align-items:center;justify-content:space-between;font-size:11px;color:var(--body);padding:12px 0;border-top:1px solid var(--line)}.account-panel[hidden]{display:none}.account-panel button{background:none;border:0;color:var(--muted);font:inherit;cursor:pointer}.account-panel button:hover{color:var(--primary)}[hidden]{display:none!important}

/* Upload attribution follows material metadata in card and list views. */
.upload-attribution{overflow-wrap:anywhere}.note-card-bottom .upload-attribution{display:block;margin-top:5px;line-height:1.6}.note-card-bottom>span:first-child{min-width:0;overflow-wrap:anywhere}.reader-meta .upload-attribution{max-width:100%}