:root{
  --bg:#f4f6fb; --surface:#fff; --line:#dde3ee; --ink:#1c2433; --soft:#5b6675; --faint:#8a94a3;
  --navy:#283a64; --blue:#337ab7; --blue-soft:rgba(51,122,183,.10); --orange:#f0ad4e; --orange-soft:rgba(240,173,78,.18);
  --green:#2e8b57; --green-soft:rgba(46,139,87,.12); --red:#c0392b; --red-soft:rgba(192,57,43,.10);
  --shadow:0 2px 10px rgba(28,36,51,.07); --radius:10px;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#12161f;--surface:#1a2030;--line:#2a3245;--ink:#e8ecf5;--soft:#aab3c5;--faint:#7a8399;
    --navy:#8ea1d6;--blue:#5a9bd4;--blue-soft:rgba(90,155,212,.16);--green-soft:rgba(79,174,125,.16);--red-soft:rgba(231,76,60,.16);
    --shadow:0 2px 10px rgba(0,0,0,.4)}
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.5 "Cabin",system-ui,-apple-system,"Segoe UI",sans-serif}
h1,h2,h3{font-family:"Nunito",system-ui,sans-serif;font-weight:800;margin:0;color:var(--ink)}
button,input,select,textarea{font:inherit;color:inherit}
a{color:var(--blue)}
[hidden]{display:none!important}

/* top bar */
.top{display:flex;align-items:center;gap:14px;padding:0 18px;height:54px;background:var(--navy);color:#fff;position:sticky;top:0;z-index:20}
.top .brand{font:800 17px "Nunito",sans-serif;letter-spacing:.2px;cursor:pointer;white-space:nowrap}
.top .brand small{font:600 11px "Cabin",sans-serif;opacity:.7;margin-left:6px}
.top .doctitle{font:700 14px "Nunito",sans-serif;opacity:.95;max-width:22vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tabs{display:flex;gap:2px;margin-left:6px}
.tab{white-space:nowrap;background:none;border:0;color:#fff;opacity:.72;padding:8px 12px;border-radius:8px;cursor:pointer;font-weight:600}
.tab:hover{opacity:1;background:rgba(255,255,255,.1)}
.tab.on{opacity:1;background:rgba(255,255,255,.18)}
.spacer{flex:1}
.status{font-size:12.5px;opacity:.85;white-space:nowrap}
.status.err{color:#ffb4a8;opacity:1;font-weight:700}
.top .btn{background:rgba(255,255,255,.14);border-color:transparent;color:#fff}
.top .btn:hover{background:rgba(255,255,255,.24)}

/* generic */
.chk{display:flex;gap:8px;align-items:flex-start;margin:0 0 10px;flex-wrap:nowrap;cursor:pointer}
.chk input{margin-top:4px;flex:none}
.btn{border:1px solid var(--line);background:var(--surface);padding:7px 13px;border-radius:8px;cursor:pointer;font-weight:600;color:var(--ink)}
.btn:hover{border-color:var(--blue)}
.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}
.btn.primary:hover{filter:brightness(1.08)}
.btn.danger{color:var(--red)}
.btn.small{padding:4px 9px;font-size:13px}
.btn:disabled{opacity:.45;cursor:not-allowed}
.field{display:block;margin:0 0 14px}
.field>span{display:block;font-size:12.5px;font-weight:700;color:var(--soft);margin-bottom:4px}
input[type=text],input[type=search],input[type=date],select,textarea{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--surface)}
input:focus,select:focus,textarea:focus,#rte:focus{outline:2px solid var(--blue);outline-offset:-1px}
textarea{resize:vertical;min-height:70px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.muted{color:var(--soft)}
.pill{display:inline-block;padding:1px 9px;border-radius:99px;font-size:11.5px;font-weight:700;border:1px solid var(--line);color:var(--soft);background:var(--surface);white-space:nowrap}
.pill.draft{background:var(--orange-soft);border-color:transparent;color:#8a5a12}
.pill.review{background:var(--blue-soft);border-color:transparent;color:var(--blue)}
.pill.approved{background:var(--green-soft);border-color:transparent;color:var(--green)}
.pill.added{background:var(--green-soft);border-color:transparent;color:var(--green)}
.pill.amended{background:var(--orange-soft);border-color:transparent;color:#8a5a12}
.pill.removed{background:var(--red-soft);border-color:transparent;color:var(--red)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.page{max-width:1000px;margin:0 auto;padding:28px 20px 60px}
.page h1{font-size:26px;margin-bottom:6px}
.page .lede{color:var(--soft);margin:0 0 22px}
.empty{padding:40px 20px;text-align:center;color:var(--soft)}

/* library */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}
.mcard{padding:16px;cursor:pointer;display:flex;flex-direction:column;gap:6px}
.mcard:hover{border-color:var(--blue)}
.mcard h3{font-size:17px}
.mcard .acts{margin-top:auto;padding-top:8px;display:flex;gap:6px}

/* editor layout */
.edit{display:grid;grid-template-columns:var(--sidew,clamp(400px,31vw,470px)) 1fr;height:calc(100vh - 54px)}
.side{position:relative;border-right:1px solid var(--line);background:var(--surface);display:flex;flex-direction:column;min-height:0}
.side .tools{padding:10px;border-bottom:1px solid var(--line);display:flex;flex-wrap:wrap;gap:5px}
.side .search{padding:8px 10px;border-bottom:1px solid var(--line)}
#tree{overflow:auto;flex:1;padding:6px 0}
.trow{display:flex;align-items:center;gap:5px;padding:5px 10px;cursor:pointer;border-left:3px solid transparent;font-size:14px}
.trow:hover{background:var(--blue-soft)}
.trow.sel{background:var(--blue-soft);border-left-color:var(--blue);font-weight:600}
.trow .caret{width:16px;flex:none;color:var(--faint);text-align:center;user-select:none}
.trow .num{color:var(--faint);min-width:2.4em;flex:none;font-variant-numeric:tabular-nums}
.trow .tt{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.dot{width:8px;height:8px;border-radius:50%;flex:none;background:var(--orange)}
.dot.review{background:var(--blue)}.dot.approved{background:var(--green)}
.chg{color:var(--orange);font-weight:800;font-size:12px;flex:none}
.rc{font-size:11px;color:var(--faint);flex:none}
.main{overflow:auto;padding:22px 28px 60px;min-width:0}
.main .inner{max-width:860px;margin:0 auto}
.titlerow{display:flex;align-items:baseline;gap:14px}
.numbadge{font:800 24px "Nunito",sans-serif;color:var(--blue);white-space:nowrap;font-variant-numeric:tabular-nums}
.titlerow .ttl{flex:1;min-width:0;width:auto}
.ttl{font:800 24px "Nunito",sans-serif;border:0!important;padding:4px 0!important;background:transparent!important;width:100%}
.meta{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:4px 0 14px}
.meta select{width:auto;padding:4px 8px}
.rtbar{display:flex;gap:4px;flex-wrap:wrap;padding:6px;border:1px solid var(--line);border-bottom:0;border-radius:8px 8px 0 0;background:var(--surface)}
.rtbar button{border:1px solid transparent;background:none;border-radius:6px;padding:4px 9px;cursor:pointer;font-weight:700;min-width:30px}
.rtbar button:hover{background:var(--blue-soft)}
#rte{min-height:320px;padding:14px 16px;border:1px solid var(--line);border-radius:0 0 8px 8px;background:var(--surface);line-height:1.6}
#rte h2{font-size:19px;margin:1em 0 .4em}#rte h3{font-size:16.5px;margin:1em 0 .4em}#rte h4{font-size:15px;margin:1em 0 .4em}
#rte table{border-collapse:collapse;width:100%}#rte td,#rte th{border:1px solid var(--line);padding:5px 8px;min-width:40px}
#rte th{background:var(--blue-soft)}
#rte img{max-width:100%;height:auto}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin:6px 0 10px}
.chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--blue-soft);border-radius:99px;padding:2px 4px 2px 10px;font-size:13px}
.chip b{font-weight:700}
.chip button{border:0;background:none;cursor:pointer;color:var(--soft);font-size:15px;line-height:1;padding:0 6px}
.combo{position:relative;max-width:460px}
.combo .results{position:absolute;left:0;right:0;top:100%;z-index:10;background:var(--surface);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);max-height:260px;overflow:auto}
.combo .results div{padding:7px 10px;cursor:pointer;font-size:14px}
.combo .results div:hover,.combo .results .on{background:var(--blue-soft)}
.combo .results small{color:var(--soft);display:block}
.section-h{font:800 13px "Nunito",sans-serif;text-transform:uppercase;letter-spacing:.06em;color:var(--soft);margin:22px 0 6px}

/* tables */
table.t{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
table.t th,table.t td{padding:8px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;font-size:14px}
table.t th{background:var(--blue-soft);font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--soft)}
table.t tr.gap td{background:var(--orange-soft)}
table.t td .lnk{cursor:pointer;color:var(--blue);margin-right:10px;white-space:nowrap}
.summary{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.stat{padding:12px 16px;min-width:160px}
.stat b{display:block;font:800 24px "Nunito",sans-serif}
.stat span{font-size:12.5px;color:var(--soft)}
details.rev{margin:0 0 8px;padding:10px 14px}
details.rev summary{cursor:pointer;font-weight:700}

/* publish */
.pubwrap{display:grid;grid-template-columns:280px 1fr;gap:18px;padding:18px;height:calc(100vh - 54px)}
.pubside{padding:16px;overflow:auto}
.pubframe{width:100%;height:100%;border:1px solid var(--line);border-radius:var(--radius);background:#fff}

/* modal + toast */
#modal{position:fixed;inset:0;background:rgba(10,16,30,.5);display:flex;align-items:flex-start;justify-content:center;padding:8vh 16px;z-index:50;overflow:auto}
.dlg{background:var(--surface);border-radius:12px;box-shadow:0 20px 60px rgba(0,0,0,.35);width:min(560px,100%);padding:22px}
.dlg h2{font-size:20px;margin-bottom:12px}
.dlg .acts{display:flex;gap:8px;justify-content:flex-end;margin-top:18px}
.dlg ol{padding-left:20px}
#toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--navy);color:#fff;padding:10px 16px;border-radius:8px;z-index:60;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:opacity .2s;max-width:90vw}
#toast.on{opacity:1}
.notice{padding:10px 14px;border-radius:8px;background:var(--orange-soft);margin:0 0 14px;font-size:14px}

@media (max-width:860px){
  .edit{grid-template-columns:1fr;height:auto}
  .side{max-height:46vh;border-right:0;border-bottom:1px solid var(--line)}
  .pubwrap{grid-template-columns:1fr;height:auto}
  .pubframe{height:70vh}
  .top .doctitle{display:none}
  .tabs{overflow:auto}
}

/* multi-select */
.selbar{padding:9px 12px;background:var(--orange-soft);border-bottom:1px solid var(--line);font-size:13.5px}
.rowchk{flex:none;width:15px;height:15px;margin:0 2px 0 0;cursor:pointer;accent-color:var(--blue)}

/* drag handle on the outline panel */
.sidehandle{position:absolute;top:0;right:-4px;width:9px;height:100%;cursor:col-resize;z-index:6;touch-action:none;display:flex;justify-content:center}
.sidehandle::after{content:"";width:3px;height:100%;border-radius:2px;background:transparent;transition:background .15s}
.sidehandle:hover::after,.sidehandle:focus-visible::after,body.resizing .sidehandle::after{background:var(--blue)}
.sidehandle:focus-visible{outline:none}
body.resizing{user-select:none;cursor:col-resize}
body.resizing iframe{pointer-events:none}
@media (max-width:860px){.sidehandle{display:none}}

/* status filter above the outline */
.statusbar{display:flex;gap:5px;flex-wrap:wrap;padding:7px 10px;border-bottom:1px solid var(--line)}
.sf{display:inline-flex;align-items:center;gap:5px;border:1px solid var(--line);background:var(--surface);border-radius:99px;padding:2px 10px;font-size:12.5px;font-weight:600;cursor:pointer;color:var(--soft)}
.sf:hover{border-color:var(--blue)}
.sf.on{background:var(--blue);border-color:var(--blue);color:#fff}
.sf .n{opacity:.75;font-weight:500}
.sf .dot{width:8px;height:8px}
.sf.on .dot{box-shadow:0 0 0 1.5px #fff}