/* App chrome: top bar, sidebar, edit mode, presentations, viewer, dialogs. Document styles are in doc.css. */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#ecebe6;color:var(--ink);font:16px/1.5 var(--font);-webkit-text-size-adjust:100%}
button{font:inherit;color:inherit}
[hidden]{display:none!important}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 14px;border:1px solid var(--line-strong);border-radius:8px;background:#fff;font-size:14px;font-weight:700;cursor:pointer;text-decoration:none;color:var(--ink);white-space:nowrap}
.btn:hover{background:var(--surface)}
.btn:focus-visible,.tab:focus-visible,.nav a:focus-visible,.icon-btn:focus-visible{outline:3px solid var(--yellow);outline-offset:2px}
.btn--primary{background:var(--yellow);border-color:var(--yellow)}
.btn--primary:hover{background:#f3da00}
.btn--dark{background:var(--ink);border-color:var(--ink);color:#fff}
.btn--dark:hover{background:#2a2a2a}
.btn--danger{color:#8a1c10;border-color:#e3b7b1}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.btn--sm{padding:5px 10px;font-size:13px}

/* ---------- app bar ---------- */
.appbar{position:sticky;top:0;z-index:40;background:var(--ink);color:#fff;border-bottom:4px solid var(--yellow)}
.appbar__in{max-width:1380px;margin:0 auto;padding:10px 20px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.appbar__brand{display:flex;flex-direction:column;line-height:1.15;margin-right:6px}
.appbar__brand b{color:var(--yellow);font-size:13px;letter-spacing:.02em}
.appbar__brand span{font-size:15px;font-weight:700}
.tabs{display:flex;gap:4px}
.tab{background:transparent;border:0;color:#d8d6cd;padding:8px 14px;border-radius:8px;font-weight:700;font-size:14px;cursor:pointer}
.tab:hover{background:#2a2a2a;color:#fff}
.tab[aria-selected="true"]{background:var(--yellow);color:var(--ink)}
.appbar__right{margin-left:auto;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.pill{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:#d8d6cd;padding:5px 10px;border:1px solid #3a3a3a;border-radius:999px;max-width:300px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pill i{width:9px;height:9px;border-radius:50%;background:#1baf7a;flex:none}
.pill[data-state="dirty"] i{background:#eb6834}
.pill[data-state="busy"] i{background:#eda100}
.pill[data-state="old"] i{background:#2a78d6}
.appbar .btn{background:#2a2a2a;border-color:#3a3a3a;color:#fff}
.appbar .btn:hover{background:#3a3a3a}
.appbar .btn--primary{background:var(--yellow);border-color:var(--yellow);color:var(--ink)}
.appbar .btn[aria-pressed="true"]{background:#fff;color:var(--ink);border-color:#fff}
.menu{position:relative}
.menu__list{position:absolute;right:0;top:calc(100% + 6px);min-width:220px;background:#fff;color:var(--ink);border-radius:10px;box-shadow:0 8px 28px rgba(0,0,0,.25);padding:6px;z-index:50}
.menu__list button,.menu__list a{display:block;width:100%;text-align:left;background:none;border:0;padding:9px 12px;border-radius:7px;font-size:14px;cursor:pointer;color:var(--ink);text-decoration:none}
.menu__list button:hover,.menu__list a:hover{background:var(--surface)}
.menu__who{padding:8px 12px 6px;font-size:12px;color:var(--ink-2);border-bottom:1px solid var(--line);margin-bottom:4px}

/* ---------- shell ---------- */
.shell{max-width:1380px;margin:0 auto;padding:20px;display:grid;grid-template-columns:240px minmax(0,1fr);gap:24px;align-items:start}
.shell--wide{grid-template-columns:minmax(0,1fr)}
.nav{position:sticky;top:84px;max-height:calc(100vh - 100px);overflow:auto;background:#fff;border-radius:12px;padding:10px;box-shadow:0 1px 3px rgba(0,0,0,.08)}
.nav h4{margin:6px 8px 8px;font-size:12px;letter-spacing:.04em;color:var(--ink-2);font-weight:700}
.nav a{display:block;padding:7px 10px;border-radius:7px;color:var(--ink-2);text-decoration:none;font-size:14px;line-height:1.3}
.nav a:hover{background:var(--surface);color:var(--ink)}
.nav a[aria-current="true"]{background:var(--yellow);color:var(--ink);font-weight:700}
.paper{background:#fff;border-radius:14px;box-shadow:0 1px 3px rgba(0,0,0,.08);overflow:hidden}
.paper > .doc{padding:0 clamp(16px,3vw,36px) 40px}
.paper > .doc > .cover{margin:0 calc(-1 * clamp(16px,3vw,36px)) 28px;border-radius:0}
.banner{margin:14px clamp(16px,3vw,36px) 0;padding:10px 14px;border-radius:10px;font-size:14px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.banner--edit{background:#fff9cc;border:1px solid #e6d200}
.banner--old{background:var(--info-bg);border:1px solid #c5d9f4}
.banner .btn{margin-left:auto}

/* ---------- edit mode ---------- */
.editing .ed{outline:1px dashed #c9c6b8;outline-offset:2px;border-radius:3px;cursor:text;white-space:pre-wrap;min-width:1ch;display:inline-block;max-width:100%}
.editing p .ed,.editing li .ed,.editing .callout .ed,.editing figcaption .ed,.editing .deck__desc .ed{display:block}
.editing .ed:hover{outline-color:#8a877a}
.editing .ed:focus{outline:2px solid var(--yellow);background:#fffdea;color:var(--ink)}
.editing .ed:empty::before{content:attr(data-ph);color:#aaa}
.editing .cover .ed:focus{background:#2a2a2a;color:#fff}
.editing .data-table thead .ed:focus{background:#2a2a2a}
.editing .callout--key .ed:focus{background:#2a2a2a;color:#fff}
.blk{position:relative}
.blk-tools{position:absolute;right:0;top:-12px;display:none;gap:2px;background:var(--ink);border-radius:8px;padding:3px;z-index:6;box-shadow:0 2px 8px rgba(0,0,0,.3)}
.editing .blk:hover > .blk-tools,.editing .blk:focus-within > .blk-tools{display:flex}
.blk-tools button{background:none;border:0;color:#fff;font-size:14px;line-height:1;min-width:28px;height:28px;border-radius:6px;cursor:pointer}
.blk-tools button:hover{background:#3a3a3a}
.blk-tools .del:hover{background:#8a1c10}
.editing .data-table td,.editing .data-table th{position:relative}
.kind-btn{position:absolute;top:3px;right:3px;width:17px;height:17px;border-radius:50%;border:1px solid rgba(0,0,0,.35);background:#fff;font-size:10px;line-height:15px;padding:0;text-align:center;cursor:pointer;opacity:.0;color:var(--ink);font-style:normal;font-weight:700}
.editing td:hover .kind-btn,.editing th:hover .kind-btn,.kind-btn:focus-visible{opacity:1}
.row-tools{white-space:nowrap;background:#fff!important;border-bottom:1px solid var(--line)}
.row-tools button,.mini{background:#fff;border:1px solid var(--line-strong);border-radius:6px;width:26px;height:26px;cursor:pointer;font-size:13px;line-height:1}
.row-tools button:hover,.mini:hover{background:var(--surface)}
.row-tools .on{background:var(--yellow)}
.add-row{margin:8px 0 0;display:flex;gap:8px;flex-wrap:wrap}
.item-del{margin-left:8px;opacity:0;vertical-align:top}
.editing li:hover .item-del{opacity:1}
.chart-data{margin:10px 0 0;overflow-x:auto}
.chart-data table{border-collapse:collapse;font-size:13px;min-width:420px}
.chart-data th,.chart-data td{border:1px solid var(--line);padding:4px 6px;text-align:left}
.chart-data th{background:var(--surface)}
.chart-data input{width:90px;font:inherit;padding:4px 6px;border:1px solid var(--line-strong);border-radius:5px}
.chart-data input:focus{outline:2px solid var(--yellow)}
.chart-data caption{text-align:left;font-size:12px;color:var(--ink-2);padding-bottom:4px}
.insert-menu{position:fixed;z-index:60;background:#fff;border-radius:10px;box-shadow:0 8px 28px rgba(0,0,0,.3);padding:6px;min-width:200px}
.insert-menu button{display:block;width:100%;text-align:left;background:none;border:0;padding:8px 12px;border-radius:7px;cursor:pointer;font-size:14px}
.insert-menu button:hover{background:var(--surface)}

/* ---------- presentations ---------- */
.view-head{margin:0 0 18px}
.view-head h1{margin:0 0 6px;font-size:clamp(22px,3vw,30px)}
.view-head p{margin:0;color:var(--ink-2);max-width:72ch}
.decks{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,380px),1fr));gap:20px;padding:0}
.deck{background:#fff;border-radius:14px;box-shadow:0 1px 3px rgba(0,0,0,.08);overflow:hidden;display:flex;flex-direction:column}
.deck__cover{position:relative;display:block;width:100%;border:0;padding:0;background:#222;cursor:pointer;aspect-ratio:1.414/1;overflow:hidden}
.deck__cover img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .25s}
.deck__cover:hover img{transform:scale(1.03)}
.deck__badge{position:absolute;left:12px;bottom:12px;background:var(--yellow);color:var(--ink);font-weight:700;font-size:12px;padding:4px 9px;border-radius:999px}
.deck__play{position:absolute;inset:0;display:grid;place-items:center}
.deck__play span{width:64px;height:64px;border-radius:50%;background:rgba(255,230,0,.95);display:grid;place-items:center;font-size:26px;padding-left:5px}
.deck__body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.deck__who{margin:0;font-size:12px;letter-spacing:.03em;color:var(--ink-2);font-weight:700}
.deck h3{margin:0;font-size:19px;line-height:1.25}
.deck__desc{margin:0;color:var(--ink-2);font-size:14px}
.deck__facts{margin:2px 0 4px;padding-left:18px;font-size:14px}
.deck__facts li{margin:0 0 4px}
.deck__actions{margin-top:auto;display:flex;gap:8px;flex-wrap:wrap;padding-top:8px}

/* ---------- viewer ---------- */
.viewer{position:fixed;inset:0;z-index:80;background:#0c0c0c;color:#fff;display:flex;flex-direction:column}
.viewer__bar{display:flex;align-items:center;gap:10px;padding:10px 16px;border-bottom:1px solid #2a2a2a;flex-wrap:wrap}
.viewer__bar h3{margin:0;font-size:16px;flex:1;min-width:140px}
.viewer__count{font-size:14px;color:#d8d6cd}
.viewer .btn{background:#2a2a2a;border-color:#3a3a3a;color:#fff}
.viewer .btn:hover{background:#3a3a3a}
.viewer__stage{position:relative;flex:1;min-height:0;display:grid;place-items:center;overflow:auto;padding:12px 56px}
.viewer__stage img{max-width:100%;max-height:100%;object-fit:contain;background:#fff;border-radius:4px;cursor:zoom-in}
.viewer__stage.zoom{place-items:start center}
.viewer__stage.zoom img{max-width:none;max-height:none;width:210%;cursor:zoom-out}
.viewer__stage video{max-width:100%;max-height:100%;border-radius:6px;background:#000}
.viewer__nav{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:64px;border:0;border-radius:10px;background:rgba(255,230,0,.92);color:#111;font-size:26px;cursor:pointer;z-index:2}
.viewer__nav[disabled]{opacity:.25;cursor:default}
.viewer__nav--prev{left:6px}.viewer__nav--next{right:6px}
.viewer__thumbs{display:flex;gap:8px;overflow-x:auto;padding:10px 16px;border-top:1px solid #2a2a2a}
.viewer__thumbs button{flex:none;border:2px solid transparent;border-radius:5px;padding:0;background:#222;cursor:pointer;opacity:.7}
.viewer__thumbs button[aria-current="true"]{border-color:var(--yellow);opacity:1}
.viewer__thumbs img{display:block;height:58px;width:auto;border-radius:3px}

/* ---------- history drawer, dialogs, toast ---------- */
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(420px,100%);z-index:70;background:#fff;box-shadow:-8px 0 32px rgba(0,0,0,.25);display:flex;flex-direction:column}
.drawer__head{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--line)}
.drawer__head h3{margin:0;font-size:17px}
.drawer__body{overflow:auto;padding:8px 10px 20px}
.ver{padding:10px 10px;border-radius:9px;border:1px solid transparent}
.ver:hover{background:var(--surface)}
.ver[aria-current="true"]{border-color:var(--yellow);background:#fffdea}
.ver b{font-size:14px}
.ver small{display:block;color:var(--ink-2);font-size:12px;margin-top:1px}
.ver p{margin:4px 0 0;font-size:13px}
.ver .btn{margin-top:8px}
dialog{border:0;border-radius:14px;padding:0;max-width:min(520px,calc(100% - 24px));width:100%;box-shadow:0 16px 48px rgba(0,0,0,.35)}
dialog::backdrop{background:rgba(0,0,0,.5)}
dialog form{padding:22px}
dialog h3{margin:0 0 8px;font-size:19px}
dialog p{margin:0 0 12px;color:var(--ink-2);font-size:14px}
dialog textarea{width:100%;min-height:76px;font:inherit;padding:10px;border:1px solid var(--line-strong);border-radius:8px;resize:vertical}
dialog textarea:focus{outline:3px solid var(--yellow)}
.dlg-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:16px;flex-wrap:wrap}
.toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:11px 18px;border-radius:10px;font-size:14px;z-index:90;box-shadow:0 6px 24px rgba(0,0,0,.35);max-width:calc(100% - 24px)}
.toast[data-kind="err"]{background:#8a1c10}
.loading{display:grid;place-items:center;min-height:50vh;color:var(--ink-2)}

/* ---------- responsive ---------- */
@media (max-width:1020px){
  .shell{grid-template-columns:minmax(0,1fr);padding:12px}
  .nav{position:static;max-height:none;display:flex;gap:4px;overflow-x:auto;padding:8px;white-space:nowrap}
  .nav h4{display:none}
  .nav a{flex:none}
  .appbar__in{padding:8px 12px;gap:8px}
  .pill{max-width:150px}
  .viewer__stage{padding:8px 10px}
  .viewer__nav{width:36px;height:52px;font-size:22px}
}
@media (max-width:560px){
  .appbar__brand span{font-size:14px}
  .hide-sm{display:none!important}
}

/* ---------- print: only the document ---------- */
@media print{
  body{background:#fff}
  .appbar,.nav,.banner,.blk-tools,.kind-btn,.row-tools,.add-row,.chart-data,.item-del,.toast,.viewer,.drawer{display:none!important}
  .shell{display:block;padding:0}
  .paper{box-shadow:none;border-radius:0}
  .editing .ed{outline:0}
}