500;600;700;800&family=Playfair+Display:wght@500;600;700&display=swap');
:root{--forest:#183e32;--ink:#233e34;--paper:#f5f3ea;--line:#d9ddcf;--gold:#b88b45;--muted:#748075}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:'Be Vietnam Pro',sans-serif;font-size:14px}button,input{font:inherit}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #c49b54;outline-offset:4px}button{transition:background .18s,transform .18s}button:disabled{opacity:.45;cursor:not-allowed}header{height:88px;padding:0 4%;display:flex;align-items:center;border-bottom:1px solid var(--line);gap:28px;background:#faf9f3}.brand{display:flex;align-items:center;gap:13px;color:var(--forest);text-decoration:none;font-size:13px;letter-spacing:1.2px;font-weight:800}.brand small{display:block;font-size:8px;letter-spacing:1.6px;margin-top:7px;font-weight:500}.seal{border:1px solid var(--forest);border-radius:50%;width:41px;height:41px;display:grid;place-items:center;font-family:serif;font-size:19px}.demo{margin-left:auto;font-size:10px;letter-spacing:1.5px;color:var(--muted)}.quiet{background:none;border:none;color:var(--ink);padding:12px}.primary{background:var(--forest);color:#fff;border:0;border-radius:8px;padding:16px 23px;font-weight:600}.primary:hover{background:#285947}.secondary{background:transparent;border:1px solid #b9c5b7;border-radius:8px;padding:13px 20px;color:var(--forest)}main{max-width:1440px;margin:auto;padding:32px 4%}.eyebrow{font-size:10px;letter-spacing:2.3px;font-weight:700;color:var(--gold);margin:0 0 16px}h1,h2{font-family:Arial,sans-serif;font-weight:600;line-height:1.14}h1{font-size:62px;margin:0 0 23px}h2{font-size:34px;margin:10px 0 18px}.intro{display:grid;grid-template-columns:1fr 1.05fr;gap:60px;align-items:center;min-height:650px}.intro-copy{padding:25px 0}.intro-copy>p:not(.eyebrow){color:#738074;line-height:1.9;max-width:430px;font-size:15px}.intro label{display:block;font-size:12px;font-weight:600;margin:30px 0 10px}.entry{display:flex;gap:10px;max-width:480px}.entry input{min-width:0;flex:1;background:#fffef9;border:1px solid #cdd4c6;padding:16px;border-radius:8px}.stats{display:flex;gap:28px;margin-top:35px;color:var(--muted);font-size:11px}.stats b{display:block;color:var(--forest);font-size:20px;margin-bottom:7px}.art{background:#dce3d3;border-radius:180px 180px 12px 12px;position:relative;overflow:hidden;min-height:550px;display:flex;align-items:end;box-shadow:inset 0 0 0 10px #e5e9dc}.art svg{width:100%;height:550px;position:absolute;inset:0}.art-caption{z-index:1;color:#f5ecd5;padding:38px;width:100%;background:linear-gradient(transparent,#183e3299)}.art-caption small{letter-spacing:3px;font-size:10px}.art-caption h2{font-size:33px;margin-bottom:8px}.art-caption p{opacity:.7;font-size:12px}.topline{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:0 0 25px}.topline h2{font-size:30px;margin:0}.team{color:var(--muted);font-size:12px;margin-top:9px}.clock{font-size:26px;font-variant-numeric:tabular-nums;border:1px solid var(--line);border-radius:10px;padding:11px 20px;background:#fffdf5}.clock small{font-size:9px;letter-spacing:1px;display:block;color:var(--muted);margin-bottom:4px}.clock.warning{color:#b57919}.clock.danger{color:#ba4139}.game-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:24px}.journey,.bank,.answer-panel{background:#fffef9;border:1px solid var(--line);border-radius:13px}.journey{padding:24px 28px}.sectionline{display:flex;justify-content:space-between;align-items:center}.sectionline h3{font-size:13px;margin:0}.sectionline span{font-size:10px;color:var(--muted)}.chart{width:100%;height:168px;margin:10px 0}.tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.tab{background:#f4f5ed;border:1px solid transparent;border-radius:7px;text-align:left;padding:12px 9px;color:var(--muted);font-size:10px;line-height:1.5}.tab b{display:block;font-size:11px;color:var(--ink);margin-top:5px}.tab.active{border-color:var(--forest);background:#e7eddf}.tab.complete:after{content:' ✓';color:#54774a}.workspace{margin-top:20px;padding-top:20px;border-top:1px solid var(--line)}.workspace h3{font-family:Arial,sans-serif;font-size:23px;margin:8px 0}.workspace p{font-size:11px;color:var(--muted);line-height:1.7}.slots{display:grid;grid-template-columns:100px 1fr;gap:12px;margin-top:20px}.slot{border:1.5px dashed #bdc9b7;background:#f8f9f1;border-radius:9px;min-height:76px;padding:13px;color:#819080;font-size:12px;text-align:center;position:relative}.slot.arrow{grid-row:span 2;font-size:30px}.slot small{display:block;font-size:9px;letter-spacing:1px;margin-bottom:10px;color:#819080}.slot.filled{background:#e8eedf;border:1px solid #b9cbb0;color:var(--forest);font-weight:600}.slot.hover{background:#d9e7c8;border:2px solid #527846}.slot .remove{display:block;font-size:9px;font-weight:400;margin-top:10px;opacity:.6}.empty-event{font-size:11px;display:grid;place-items:center;color:var(--muted);min-height:65px}.bank{padding:23px 19px}.bank h3{margin:0;font-size:14px}.bank>p{font-size:10px;line-height:1.7;color:var(--muted)}.bank-label{font-size:9px;letter-spacing:1.8px;color:var(--muted);margin:24px 0 12px}.arrow-bank{display:grid;grid-template-columns:repeat(4,1fr);gap:7px}.card{border:1px solid #d7dccf;background:white;border-radius:7px;padding:12px;text-align:left;color:var(--ink);font-size:11px;line-height:1.6;box-shadow:0 2px 0 #e9ebdf;touch-action:none;user-select:none}.card:hover,.card.selected{border-color:#4d745b;background:#eff4e7;transform:translateY(-2px)}.arrow-bank .card{text-align:center;font-size:27px;padding:5px}.content-bank{display:flex;flex-direction:column;gap:9px}.bank .hint{border-top:1px solid var(--line);padding-top:15px;margin-top:20px}.bottomline{display:flex;align-items:center;justify-content:space-between;margin-top:23px;gap:12px}.bottomline p{font-size:10px;color:var(--muted)}.progress-track{height:4px;background:#e3e8da;border-radius:4px;margin-top:20px;overflow:hidden}.progress-track div{height:100%;background:#69825c;transition:width .3s}.footer{font-size:10px;color:#8a9386;margin-top:24px;display:flex;justify-content:space-between;gap:15px}.result-hero{text-align:center;padding:25px}.score{font-family:Arial,sans-serif;font-size:76px;color:var(--forest);margin:20px}.score small{font-size:24px;color:var(--muted)}.result-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.answer-panel{padding:22px}.answer-panel h3{margin-top:0}.answer-row{border-top:1px solid var(--line);padding:12px 0;font-size:12px;line-height:1.7}.correct{color:#44734b}.incorrect{color:#b35a3e}.answer-row small{display:block;color:var(--muted)}dialog{border:1px solid var(--line);border-radius:16px;padding:40px;max-width:540px;width:calc(100% - 30px);color:var(--ink);background:#fffef7}dialog::backdrop{background:#122d28a8;backdrop-filter:blur(4px)}dialog ol{padding-left:22px}dialog li{padding:9px 0 9px 10px}dialog p{line-height:1.8;font-size:13px}.close{position:absolute;right:14px;top:12px;background:none;border:0;font-size:26px;color:var(--muted)}.note{font-size:11px!important;color:var(--muted)}#toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);background:var(--forest);color:white;padding:13px 22px;border-radius:8px;z-index:10;display:none;max-width:90%;font-size:12px}.drag-ghost{position:fixed;z-index:99;pointer-events:none;max-width:250px;box-shadow:0 8px 30px #183e3240;opacity:.92} @media(min-width:1450px){.intro{min-height:740px}}@media(max-width:1000px){.game-layout{grid-template-columns:minmax(0,1fr) 260px}.intro{gap:25px}h1{font-size:48px}.journey{padding:20px}.art,.art svg{min-height:490px;height:490px}}@media(max-width:760px){header{height:74px;gap:6px}.demo{display:none}.quiet{margin-left:auto;font-size:11px}.brand{font-size:10px}.brand small{font-size:6px}main{padding:25px 5%}.intro{grid-template-columns:1fr;min-height:0;gap:20px}.intro-copy{padding:10px 0}h1{font-size:45px}.art,.art svg{min-height:320px;height:320px}.art{border-radius:100px 100px 12px 12px}.game-layout{grid-template-columns:1fr}.bank{order:2}.content-bank{display:grid;grid-template-columns:1fr 1fr}.slots{grid-template-columns:75px 1fr}.topline h2{font-size:24px}.clock{font-size:22px;padding:9px 13px}.tabs{gap:4px}.tab{font-size:9px;padding:8px 5px}.tab b{font-size:9px}.chart{height:130px}.bottomline{flex-wrap:wrap}.result-grid{grid-template-columns:1fr}.entry{flex-direction:column}.footer{font-size:9px}.stats{gap:22px}}@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* One Vietnamese-capable system font across every screen and component. */
html body,html body *,html body *::before,html body *::after{font-family:Arial,Helvetica,sans-serif!important}h1,h2,h3{font-kerning:normal;letter-spacing:normal;text-rendering:optimizeLegibility}