@font-face{font-family:Be Vietnam Pro;font-style:normal;font-display:swap;font-weight:400;src:url(/assets/be-vietnam-pro-vietnamese-400-normal-CRcqvyg1.woff2)format("woff2"),url(/assets/be-vietnam-pro-vietnamese-400-normal-BuGn0gnm.woff)format("woff");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Be Vietnam Pro;font-style:normal;font-display:swap;font-weight:400;src:url(/assets/be-vietnam-pro-latin-ext-400-normal-CiZNW1ec.woff2)format("woff2"),url(/assets/be-vietnam-pro-latin-ext-400-normal-DYBYyMQr.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Be Vietnam Pro;font-style:normal;font-display:swap;font-weight:400;src:url(/assets/be-vietnam-pro-latin-400-normal-PpnXBOrz.woff2)format("woff2"),url(/assets/be-vietnam-pro-latin-400-normal-bXgqVju9.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Be Vietnam Pro;font-style:normal;font-display:swap;font-weight:600;src:url(/assets/be-vietnam-pro-vietnamese-600-normal-nyU-ZL2p.woff2)format("woff2"),url(/assets/be-vietnam-pro-vietnamese-600-normal-DkpCIyan.woff)format("woff");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Be Vietnam Pro;font-style:normal;font-display:swap;font-weight:600;src:url(/assets/be-vietnam-pro-latin-ext-600-normal-BNd8euf0.woff2)format("woff2"),url(/assets/be-vietnam-pro-latin-ext-600-normal-BeUwKxhG.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Be Vietnam Pro;font-style:normal;font-display:swap;font-weight:600;src:url(/assets/be-vietnam-pro-latin-600-normal-BZDkUTrt.woff2)format("woff2"),url(/assets/be-vietnam-pro-latin-600-normal-5IO4e7bK.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Be Vietnam Pro;font-style:normal;font-display:swap;font-weight:700;src:url(/assets/be-vietnam-pro-vietnamese-700-normal-Csr0PCuG.woff2)format("woff2"),url(/assets/be-vietnam-pro-vietnamese-700-normal-By_5yT39.woff)format("woff");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Be Vietnam Pro;font-style:normal;font-display:swap;font-weight:700;src:url(/assets/be-vietnam-pro-latin-ext-700-normal-C8_gqRu2.woff2)format("woff2"),url(/assets/be-vietnam-pro-latin-ext-700-normal-4Hjo2OtD.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Be Vietnam Pro;font-style:normal;font-display:swap;font-weight:700;src:url(/assets/be-vietnam-pro-latin-700-normal-DlW1Zbsh.woff2)format("woff2"),url(/assets/be-vietnam-pro-latin-700-normal-C2EtzaOi.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{--bg:#f5f7fa;--card:#fff;--ink:#111827;--muted:#6b7280;--line:#e5e7eb;--blue:#1d4ed8;--blue-soft:#eff6ff;--red:#b91c1c;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;color:var(--ink);background:var(--bg);-webkit-text-size-adjust:100%;font-family:Be Vietnam Pro,system-ui,sans-serif}*{box-sizing:border-box}body{background:var(--bg);min-height:100dvh;margin:0}h1{margin:12px 0 4px;font-size:1.5rem}.muted{color:var(--muted)}.fine{color:var(--muted);text-align:center;margin-bottom:0;font-size:.8rem}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px}.center{text-align:center}.auth{place-items:center;min-height:100dvh;padding:16px;display:grid}.auth .card{width:100%;max-width:400px}form{gap:10px;margin-top:16px;display:grid}label{font-size:.9rem;font-weight:600}input{font:inherit;border:1px solid var(--line);border-radius:10px;width:100%;padding:12px 14px;font-size:1rem}input:focus{outline:2px solid var(--blue);outline-offset:1px;border-color:#0000}input.code{letter-spacing:.4em;text-align:center;font-size:1.5rem}button{font:inherit;cursor:pointer}button:disabled{opacity:.6;cursor:default}.primary{background:var(--blue);color:#fff;border:0;border-radius:10px;padding:12px;font-size:1rem;font-weight:600}.link{color:var(--blue);background:0 0;border:0;padding:6px 0}.row{justify-content:space-between;display:flex}.error{color:var(--red);background:#fef2f2;border-radius:8px;padding:8px 12px}.or{color:var(--muted);align-items:center;gap:12px;margin:20px 0 12px;font-size:.85rem;display:flex}.or:before,.or:after{content:"";background:var(--line);flex:1;height:1px}.google{border:1px solid var(--line);color:var(--ink);border-radius:10px;justify-content:center;align-items:center;gap:10px;padding:11px;font-weight:600;text-decoration:none;display:flex}.record{background:var(--blue);color:#fff;border:0;border-radius:50%;width:160px;height:160px;margin:16px auto;font-size:1.5rem;font-weight:700;display:block}.loading{min-height:100dvh}.page{max-width:720px;padding:16px;padding-bottom:calc(24px + env(safe-area-inset-bottom));margin:0 auto}.bar{justify-content:space-between;align-items:center;gap:8px;margin-bottom:16px;display:flex}.form{gap:10px;display:grid}select{font:inherit;border:1px solid var(--line);background:#fff;border-radius:10px;padding:12px 14px;font-size:1rem}.chips{flex-wrap:wrap;gap:8px;display:flex}.chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 14px}.chip.on{background:var(--blue-soft);border-color:var(--blue);color:var(--blue);font-weight:600}.note{background:var(--blue-soft);border-left:4px solid var(--blue);border-radius:8px;margin:8px 0;padding:10px 12px}.warn{background:#fffbeb;border-left:4px solid #d97706;border-radius:8px;gap:8px;margin:8px 0;padding:10px 12px;display:grid}.warn-card{border-color:#f59e0b;margin-bottom:12px}.check{align-items:center;gap:8px;font-weight:400;display:flex}.check input{width:auto}details summary{cursor:pointer;color:var(--muted)}.secondary{color:var(--blue);border:1px solid var(--blue);background:#fff;border-radius:10px;padding:11px 16px;font-weight:600}.danger{color:var(--red)}.gap{flex-wrap:wrap;justify-content:flex-start;align-items:center;gap:12px}.small{margin:4px 0;font-size:.85rem}.h2{margin:24px 0 8px;font-size:1.1rem}.list{gap:8px;margin:0;padding:0;list-style:none;display:grid}.list li{border:1px solid var(--line);background:#fff;border-radius:12px;justify-content:space-between;align-items:center;gap:12px;padding:12px 14px;display:flex}.list p{margin:2px 0 0}.badge{white-space:nowrap;background:#f3f4f6;border-radius:999px;padding:4px 8px;font-size:.75rem}.s-chuan_bi{background:var(--blue-soft);color:var(--blue)}.s-cho_han_muc,.s-cho_upload{color:#92400e;background:#fffbeb}.s-loi{color:var(--red);background:#fef2f2}.progress{background:#e5e7eb;border-radius:999px;height:10px;overflow:hidden}.progress div{background:var(--blue);height:100%;transition:width .3s}.live{text-align:center;gap:12px;display:grid}.clock{font-variant-numeric:tabular-nums;margin-top:16px;font-size:3.5rem;font-weight:700}.clock.paused{color:var(--muted)}.level{background:#e5e7eb;border-radius:999px;width:100%;max-width:320px;height:8px;margin:0 auto;overflow:hidden}.level div{background:#16a34a;height:100%;transition:width .15s}.actions{justify-content:center;gap:12px;display:flex}.act{border:1px solid var(--line);background:#fff;border-radius:16px;place-items:center;width:92px;height:84px;font-size:1.6rem;display:grid}.act span{color:var(--muted);font-size:.75rem}.notes{text-align:left;gap:4px;display:grid}.stop{background:var(--red);color:#fff;border:0;border-radius:999px;width:100%;max-width:320px;margin:8px auto 0;padding:16px;font-size:1.1rem;font-weight:700}.big{padding:14px;font-size:1.1rem}.toast{color:#fff;z-index:5;background:#111827;border-radius:999px;padding:10px 16px;position:fixed;bottom:24px;left:50%;transform:translate(-50%)}.meeting-mode{color:#4b5563;z-index:10;text-align:center;background:#000;place-content:center;gap:24px;padding:24px;display:grid;position:fixed;inset:0}.mm-clock{font-variant-numeric:tabular-nums;font-size:3rem}.meeting-mode .stop{color:#fca5a5;background:#3f1d1d}.clickable{cursor:pointer}.clickable:hover{border-color:var(--blue)}.meeting{padding-bottom:96px}.tabs{background:#eef2f7;border-radius:999px;gap:4px;margin-bottom:12px;padding:4px;display:inline-flex}.tabs button{color:var(--muted);background:0 0;border:0;border-radius:999px;padding:8px 18px;font-weight:600}.tabs button.on{color:var(--ink);background:#fff;box-shadow:0 1px 2px #00000014}.title{margin:4px 0;font-size:1.5rem;line-height:1.3}.transcript{gap:4px;margin-top:12px;display:grid}.para{border-radius:10px;grid-template-columns:64px 1fr;gap:8px;padding:8px;display:grid}.para.active{background:var(--blue-soft)}.para p{margin:0;line-height:1.7}.para p.doubt{-webkit-text-decoration:underline dotted #9ca3af;text-decoration:underline dotted #9ca3af}.ts{color:var(--blue);font-variant-numeric:tabular-nums;text-align:left;background:0 0;border:0;align-self:start;padding:2px 0;font-size:.85rem}.tiny{opacity:.6;margin-left:8px;font-size:.75rem}.edit textarea{width:100%;font:inherit;border:1px solid var(--line);border-radius:8px;padding:8px}.small-btn{padding:6px 12px;font-size:.85rem}.player{border-top:1px solid var(--line);padding:10px 16px calc(10px + env(safe-area-inset-bottom));z-index:4;background:#fff;justify-content:center;align-items:center;gap:10px;display:flex;position:fixed;bottom:0;left:0;right:0}.player button{border:1px solid var(--line);background:#fff;border-radius:999px;min-width:44px;height:40px;font-weight:600}.player .play{background:var(--blue);color:#fff;border:0;width:48px;height:48px}.ptime{font-variant-numeric:tabular-nums;text-align:center;min-width:56px}.player select{padding:6px}.content{padding:24px 20px}@media (width>=640px){.content{padding:32px 36px}}.content .summary{color:var(--muted);margin:0 0 8px;font-size:1rem}.sec h2{color:#0f172a;margin:28px 0 12px;font-size:1.35rem;line-height:1.35}.sec:first-of-type h2{margin-top:8px}.sec h3{margin:18px 0 6px;font-size:1.05rem}.content p,.content li{color:#1f2937;font-size:1.02rem;line-height:1.75}.blk-ul{margin:8px 0;padding-left:1.2em}.blk-ul li{margin:10px 0}.callout{border-left:4px solid var(--blue);color:#1e293b;background:#eef4ff;border-radius:0 12px 12px 0;margin:16px 0;padding:14px 18px;line-height:1.7}.fig{margin:16px 0 8px}.fig-box{background:#fff;border:1px solid #e5e7eb;border-radius:14px;padding:8px}.diagram{width:100%;height:auto;display:block}.fig figcaption{color:var(--muted);margin-top:8px;font-size:.85rem}.play-src{background:var(--blue-soft);color:var(--blue);vertical-align:middle;font-variant-numeric:tabular-nums;border:0;border-radius:999px;margin-left:6px;padding:1px 8px;font-size:.72rem;line-height:1.4;display:none}.blk:hover .play-src,.blk:focus-within .play-src,.todo li:hover .play-src{display:inline-block}@media (hover:none){.play-src{opacity:.8;padding:0 6px;display:inline-block}}.noibo{color:#92400e;vertical-align:middle;background:#fef3c7;border-radius:6px;margin-left:4px;padding:1px 6px;font-size:.7rem}.todo{gap:8px;margin:8px 0;padding:0;list-style:none;display:grid}.todo li{flex-wrap:wrap;align-items:flex-start;gap:6px;display:flex}.todo label{flex:1;align-items:flex-start;gap:10px;display:flex}.todo input{flex:none;width:18px;height:18px;margin-top:6px}.todo .meta{color:var(--muted);font-size:.9rem}.todo li.done span:first-child{color:var(--muted);text-decoration:line-through}.foot{border-top:1px solid var(--line);margin-top:24px;padding-top:12px}@media (width<=640px){.fig-box{-webkit-overflow-scrolling:touch;overflow-x:auto}.fig-box .diagram{min-width:680px}.fig-box:after{content:"← vuốt để xem →";text-align:center;color:var(--muted);padding-top:4px;font-size:.75rem;display:block;position:sticky;left:0}}.tools{margin-bottom:12px}