/* Trang tài liệu TIMO (sinh bởi scripts/worksheets/build_timo_worksheets.py — sửa ở timo_assets/). */
.ws-timo .pdf-actions{display:inline-flex;gap:8px;flex-wrap:wrap}
.ws-timo .pdf-actions .button{min-height:38px;padding:0 14px;font-size:13px}
.ws-timo .button.secondary{background:#fff;color:var(--indigo);box-shadow:inset 0 0 0 1.5px var(--indigo)}
.ws-timo .button.secondary:hover{background:var(--indigo-soft)}
.ws-timo .meta{margin:0 0 8px;color:var(--ink-faint);font-size:13px;font-weight:700}
.ws-packs{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:18px 0 34px}
.ws-pack{display:flex;flex-direction:column;gap:12px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:12px}
.ws-pack img{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:6px;box-shadow:0 10px 24px rgba(28,35,52,.10)}
.ws-pack h3{margin:0 0 4px;font-size:17px;line-height:1.3;color:var(--navy)}
.ws-topic{margin:26px 0 30px}
.ws-topic h3{margin:0 0 6px;font-size:21px}
.ws-topic h3 a{color:var(--navy)}
.ws-topic>p{margin:0 0 12px;color:var(--ink-soft);font-size:15px}
.ws-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.ws-list li{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin:0;padding:11px 2px;border-bottom:1px solid var(--line)}
.ws-list .tname{font-weight:800;color:var(--navy);text-decoration:none}
.ws-list .tname:hover{text-decoration:underline}
.ws-list .meta{display:block;margin:2px 0 0;font-weight:600}
.ws-toc ol{columns:2;column-gap:28px;margin:10px 0 24px}
.ws-type{margin:34px 0 0;padding-top:4px;border-top:1px solid var(--line)}
.ws-type h2{margin-top:18px}
.ws-example{margin:14px 0;padding:16px 18px;background:#fff;border:1px solid var(--line);border-radius:12px}
.ws-example .qp{margin:0 0 4px;font-weight:600}
.ws-example details{margin:12px 0 0}
.ws-example .opts{display:flex;flex-wrap:wrap;gap:8px 18px;margin:8px 0 0}
.ws-example .opts b{display:inline-grid;place-items:center;width:22px;height:22px;border:1.5px solid var(--line);border-radius:50%;font-size:11px;margin-right:4px}
@media(max-width:760px){.ws-packs{grid-template-columns:1fr}.ws-pack{flex-direction:row;align-items:flex-start}.ws-pack>a{flex:0 0 110px}.ws-toc ol{columns:1}}

/* Trình xem PDF (pdf-viewer.js) */
dialog.pdfv{width:min(980px,100vw);height:100dvh;max-width:100vw;max-height:100dvh;margin:auto;padding:0;border:0;background:#2b3140;color:#fff}
@media(min-width:760px){dialog.pdfv{height:calc(100dvh - 40px);border-radius:12px}}
dialog.pdfv::backdrop{background:rgba(10,14,24,.72)}
.pdfv-wrap{display:flex;flex-direction:column;height:100%}
.pdfv-bar{display:flex;align-items:center;gap:10px;padding:10px 12px;padding-top:calc(10px + env(safe-area-inset-top,0px));background:#1d2230}
.pdfv-bar b{flex:1;min-width:0;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pdfv-bar a,.pdfv-bar button{min-height:38px;padding:0 14px;border:0;border-radius:8px;font:inherit;font-size:13px;font-weight:800;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center}
.pdfv-bar a{background:var(--indigo,#4f46e5);color:#fff}
.pdfv-bar button{background:#3a4152;color:#fff}
.pdfv-pages{flex:1;overflow:auto;padding:14px;display:flex;flex-direction:column;align-items:center;gap:14px;-webkit-overflow-scrolling:touch}
.pdfv-pages canvas{display:block;width:100%;max-width:900px;height:auto;background:#fff;box-shadow:0 6px 22px rgba(0,0,0,.35)}
.pdfv-msg{margin:auto;color:#cfd5e1;font-size:15px;text-align:center;padding:20px}

/* hình minh hoạ đề (sinh từ timo_scene.py) */

.pic{margin:6px 0 4px;display:flex;flex-direction:column;gap:6px;align-items:flex-start}
.pic .row{display:flex;flex-wrap:wrap;align-items:center;gap:4px}
.pic .tk{min-width:30px;height:30px;padding:0 6px;display:inline-flex;align-items:center;justify-content:center;font-size:19px;font-weight:700;border-radius:6px}
.pic .tk.op{min-width:18px;padding:0 2px;font-weight:600;color:#3d4553}
.pic .tk.blank{border:2px dashed #8a93a3;min-width:40px;color:#8a93a3}
.pic .seq .cell{min-width:36px;height:36px;padding:0 6px;border:1.6px solid #c9d0db;border-radius:7px;display:inline-flex;align-items:center;justify-content:center;font-size:19px;font-weight:700}
.pic .seq .cell.blank{border:2px dashed #8a93a3;color:#8a93a3}
.pic .seq .cell.empty{border-style:dotted}
.pic .seq .cell.mark{background:#fff1d9;border-color:#f2a33a}
.pic .seq .cell.dots{border:0;min-width:20px}
.pic .em{font-size:24px;line-height:1.15}
.pic .em.sm{font-size:19px}
.pic .em.mark{outline:2.5px solid #f2a33a;outline-offset:1px;border-radius:50%}
.pic .gap{width:12px}
.pic .arr div{display:flex;gap:2px}
.pic .rows{display:flex;flex-direction:column;gap:3px}
.pic .rrow{display:flex;align-items:center;gap:2px}
.pic .rrow .who{margin-right:8px;font-size:26px}
.pic .coin{width:34px;height:34px;border-radius:50%;background:#f7d774;border:2px solid #c89b1d;display:inline-flex;align-items:center;justify-content:center;font-weight:800;font-size:15px}
.pic .ball{width:22px;height:22px;border-radius:50%;display:inline-block;border:1.5px solid rgba(0,0,0,.25)}
.pic .bar{width:min(100%,420px);display:flex;flex-direction:column;gap:5px}
.pic .brow{display:flex;align-items:center;gap:8px}
.pic .brow .who{width:92px;font-size:13px;font-weight:700;text-align:right}
.pic .brow .track{flex:1;display:flex}
.pic .seg{height:26px;border:1.6px solid #172033;margin-left:-1.6px;background:#dbe7fb;display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:14px}
.pic .seg:not(.q){background:#fff1d9}
.pic .strip{gap:2px}
.pic .dcell{display:inline-flex;flex-direction:column;align-items:center;gap:2px}
.pic .day{min-width:46px;height:34px;padding:0 6px;border:1.6px solid #c9d0db;border-radius:7px;display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:15px}
.pic .day.ask{border:2px dashed #8a93a3;color:#8a93a3}
.pic .day.known{background:#fff1d9;border-color:#f2a33a}
.pic .dcell small,.pic .darrow small{font-size:11px;color:#5b6475}
.pic .darrow{display:inline-flex;flex-direction:column;align-items:center;font-size:16px;color:#5b6475;padding:0 2px;margin-bottom:16px}
.pic .month{display:grid;grid-template-columns:repeat(7,34px);gap:2px}
.pic .mh{font-size:11px;font-weight:800;text-align:center;color:#5b6475}
.pic .md{height:26px;border:1px solid #d5dae2;font-size:13px;display:flex;align-items:center;justify-content:center;font-weight:700}
.pic .md.out{border:0}
.pic .md.mark{background:#fff1d9;border-color:#f2a33a}
.pic svg{max-width:100%;height:auto}