:root{--blue:#0e4175;--gold:#c9a86a;--paper:#fcfcfa;--ink:#232f3c}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:"TBTI Serif",serif;font-size:18px;line-height:1.65}a{color:var(--blue)}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid var(--gold);outline-offset:4px}.wrap{max-width:1180px;margin:auto;padding:0 30px}.preview{background:var(--blue);color:white;text-align:center;font:11px/1.5 "TBTI Sans",sans-serif;letter-spacing:.12em;padding:9px 20px}header{background:var(--paper);border-bottom:1px solid #0e41751c}.head{display:flex;align-items:center;justify-content:space-between;gap:25px;padding-top:20px;padding-bottom:20px}.brand{display:flex;gap:13px;align-items:center;text-decoration:none;font-size:14px;letter-spacing:.08em;line-height:1.4}.brand img{width:62px;height:62px;object-fit:contain;border-radius:50%}.brand small{display:block;font-size:10px;letter-spacing:.16em}nav{display:flex;flex-wrap:wrap;align-items:center;gap:24px}nav a{font:13px "TBTI Sans",sans-serif;text-decoration:none;padding:8px 0;border-bottom:2px solid transparent}nav a.active{border-color:var(--gold)}button{cursor:pointer}.lang{background:transparent;border:1px solid #0e417540;border-radius:30px;padding:7px 13px;color:var(--blue);font:12px "TBTI Sans",sans-serif}.hero{padding:68px 0 62px;border-bottom:1px solid #0e41751c}.eyebrow{font:11px/1.6 "TBTI Sans",sans-serif;text-transform:uppercase;letter-spacing:.22em;color:#86632d}.crumb{font:12px "TBTI Sans",sans-serif;margin-bottom:35px;color:#627083}.crumb a{text-decoration:none}h1,h2,h3{color:var(--blue);font-weight:400;line-height:1.15}h1{font-size:clamp(38px,5vw,68px);margin:16px 0 22px;max-width:900px}h2{font-size:34px;margin:0 0 20px}h3{font-size:25px;margin:14px 0}.lead{font-size:21px;max-width:740px;color:#536272}.hero-grid{display:grid;grid-template-columns:1.5fr 1fr;align-items:center;gap:65px}.seal{width:100%;max-width:330px;border-radius:50%;display:block;margin:auto}.seal-frame{text-align:center;border:1px solid #c9a86a70;padding:36px 24px;outline:1px solid #c9a86a50;outline-offset:-9px}.seal-frame p{color:var(--blue);font-size:16px;font-style:italic;margin-bottom:0}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.btn{display:inline-block;background:var(--blue);color:white;padding:12px 22px;text-decoration:none;border:1px solid var(--blue);font:13px/1.5 "TBTI Sans",sans-serif;border-radius:4px}.btn.secondary{background:transparent;color:var(--blue)}section.content{padding:58px 0}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.two{grid-template-columns:repeat(2,1fr)}.card{background:white;border:1px solid #0e417521;border-top:3px solid var(--gold);padding:28px;border-radius:3px}.card p{font-size:17px;color:#566270}.card a.more{display:inline-block;margin-top:15px;font:13px "TBTI Sans",sans-serif}.muted{color:#647185;font-size:15px}.band{background:var(--blue);color:white;padding:42px;margin-top:42px}.band h2,.band h3{color:white}.band .eyebrow{color:#e4c994}.band a{color:white}.split{display:grid;grid-template-columns:1fr 1.6fr;gap:65px}.rule{border:0;border-top:1px solid #0e417522;margin:32px 0}.notice{border-left:3px solid var(--gold);padding:16px 22px;background:#c9a86a12;font-size:16px}.price{font-size:82px;line-height:1;color:var(--blue);margin:20px 0}.steps{counter-reset:steps;list-style:none;padding:0}.steps li{counter-increment:steps;position:relative;border-bottom:1px solid #0e41751c;padding:8px 0 25px 55px;margin-bottom:22px}.steps li:before{content:'0' counter(steps);position:absolute;left:0;top:12px;color:#98753d;font-size:22px}details{border-bottom:1px solid #0e417526;padding:20px 0}summary{cursor:pointer;color:var(--blue)}form{display:grid;gap:18px}label{display:grid;gap:7px;font-size:16px}input,select,textarea{width:100%;padding:11px 13px;border:1px solid #0e417536;border-radius:3px;background:white;color:var(--ink)}textarea{min-height:120px}footer{border-top:1px solid #0e417522;padding:40px 0;margin-top:30px}footer .wrap{display:flex;justify-content:space-between;gap:25px;flex-wrap:wrap}footer p{margin:5px 0;font-size:14px}footer a{font-size:14px}.skip{position:absolute;left:10px;top:-100px;background:white;z-index:10}.skip:focus{top:10px}.mobile-menu{display:none}#draft-result:empty{display:none}#draft-result{white-space:pre-wrap;padding:20px;border:1px solid #c9a86a;background:white;font-size:16px}@media(max-width:900px){.head{flex-wrap:wrap}.hero-grid,.split{grid-template-columns:1fr;gap:32px}.grid{grid-template-columns:1fr 1fr}.seal-frame{max-width:400px}.hero{padding:40px 0}.head nav{width:100%;gap:18px}.lead{font-size:19px}}@media(max-width:580px){.wrap{padding-left:20px;padding-right:20px}.grid,.two{grid-template-columns:1fr}h1{font-size:40px}h2{font-size:29px}.band{padding:26px}.head nav{display:none}.head nav.open{display:flex}.mobile-menu{display:block;background:none;border:1px solid #0e417540;color:var(--blue);padding:7px 12px}.card{padding:23px}.hero-grid{gap:30px}.seal{max-width:230px}section.content{padding:36px 0}}
.restored{padding-top:65px;margin-top:55px;border-top:1px solid #0e417522;scroll-margin-top:25px}.symbol-map{position:relative;max-width:500px;margin:auto}.symbol-map img{width:100%;display:block}.symbol-dot{position:absolute;transform:translate(-50%,-50%);width:32px;height:32px;border-radius:50%;background:#fcfcfa;color:#0e4175;border:2px solid #c9a86a;font:14px "TBTI Sans",sans-serif;box-shadow:0 0 0 5px #c9a86a35}.symbol-dot.selected{background:#0e4175;color:white}.symbol-buttons{display:flex;gap:8px;flex-wrap:wrap}.symbol-buttons button{font:13px/1.5 "TBTI Sans",sans-serif;background:white;border:1px solid #0e417533;color:#0e4175;padding:9px 12px;border-radius:4px}.symbol-buttons button[aria-pressed=true]{background:#0e4175;color:white}#symbol-detail{align-self:start}blockquote{border-left:2px solid #c9a86a;margin:24px 0 0;padding-left:20px;color:#0e4175}.section-links{display:flex;gap:18px;flex-wrap:wrap;margin-top:24px;font:13px/1.6 "TBTI Sans",sans-serif}.card ul{padding-left:20px;font-size:17px}.card li{padding:5px 0}@media(max-width:580px){.symbol-dot{width:30px;height:30px}.restored{margin-top:35px;padding-top:35px}}

.table-scroll{overflow-x:auto;margin:24px 0}.course-table{border-collapse:collapse;width:100%;font-size:16px;text-align:left}.course-table th,.course-table td{padding:14px 18px;border-bottom:1px solid #0e417522}.course-table thead,.course-table tfoot{background:#0e41750b;color:#0e4175}.course-table td:first-child{white-space:nowrap;font-family:"TBTI Sans",sans-serif;font-size:13px}.catalogue-controls{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:18px;margin:30px 0}.course-card[hidden]{display:none}.course-card h3{font-size:23px}.course-card{display:flex;flex-direction:column}.course-card .more{margin-top:auto;padding-top:15px}.head{flex-wrap:wrap}nav{gap:16px}@media(max-width:760px){.catalogue-controls{grid-template-columns:1fr}.course-table th,.course-table td{padding:12px 9px}.course-table{font-size:15px}}

.mockup-frame{display:block;width:100%;height:1250px;border:1px solid #0e417522;border-radius:14px;background:#fcfcfa;margin-top:24px}@media(max-width:600px){.mockup-frame{height:1700px}}

/* Full Vietnamese glyph coverage in every weight; allow room for stacked accents. */
body{font-family:"TBTI Serif",serif}h1,h2,h3,h4{line-height:1.3}input,select,textarea{line-height:1.6}html:lang(vi) .eyebrow{letter-spacing:.06em}html:lang(vi) .preview{letter-spacing:.06em}
 .illustration-panel{display:grid;grid-template-columns:minmax(0,1fr) minmax(220px,.7fr);align-items:center;gap:28px;margin:0 0 42px;padding:22px 26px;border:1px solid rgba(14,65,117,.12);border-radius:18px;background:linear-gradient(135deg,rgba(14,65,117,.045),rgba(201,168,106,.08));overflow:hidden}.illustration-panel img{display:block;width:100%;max-height:250px;object-fit:contain}.illustration-panel h2{margin:8px 0 0}.course-badge{display:inline-block;padding:3px 7px;border-radius:999px;background:#C9A86A22;color:#8A6B2D;font-size:.72em;white-space:nowrap}@media(max-width:700px){.illustration-panel{grid-template-columns:1fr;padding:16px}.illustration-panel img{max-height:190px}}
 .brand-section-icon{display:flex;justify-content:flex-end;margin:-10px 0 12px}.brand-section-icon img{width:76px;height:76px;object-fit:contain}.course-badge{vertical-align:middle}
.academic-icon{display:block;width:80px;height:80px;object-fit:contain;margin:0 0 16px}.academic-icon-small{width:36px;height:36px;flex:0 0 36px;margin:0}.course-cell{display:flex;align-items:center;gap:12px}.course-card .academic-icon{width:72px;height:72px}@media(max-width:600px){.academic-icon{width:64px;height:64px}.academic-icon-small{width:32px;height:32px;flex-basis:32px}.course-cell{gap:8px}}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;margin-left:auto}.study-hub{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 19px;border-radius:5px;background:var(--blue);border:1px solid var(--blue);border-bottom:3px solid var(--gold);color:#fff;text-decoration:none;white-space:nowrap;font:700 13px/1.4 "TBTI Sans",sans-serif;box-shadow:0 3px 10px #0e417518}.study-hub:hover{background:#153556}.study-hub:focus-visible{outline:3px solid var(--gold);outline-offset:4px}.head{gap:18px}.head nav{gap:16px}@media(max-width:1100px){.head{flex-wrap:wrap}.head nav{order:3;width:100%}}@media(max-width:580px){.head{gap:12px}.header-actions{order:1;gap:8px}.head .mobile-menu{order:2}.head .brand{margin-right:auto}.head .brand img{width:48px;height:48px}.head .brand span{font-size:12px}.head .lang{padding:8px;font-size:10px}.study-hub{padding:10px 12px}.head nav{order:3}.header-actions .lang{max-width:84px}}

.price{font-size:clamp(26px,4vw,40px);line-height:1.3;overflow-wrap:break-word}.illustration-panel img{height:auto}.course-badge{line-height:1.4}

/* Storytelling additions reuse the existing palette, fonts and cards. */
.story-prose{max-width:780px}.story-prose p{margin:0 0 22px}.story-prose h2{margin-top:0}.story-quote{margin:48px 0;padding:26px 30px;border-left:3px solid var(--gold);background:#0e417508}.story-quote p{font-size:clamp(25px,3vw,34px);line-height:1.4;margin:0 0 12px;color:var(--blue)}.story-quote cite{font:12px/1.7 'TBTI Sans',sans-serif;color:#596879}.story-nav{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:38px;padding-bottom:24px;border-bottom:1px solid #0e417522}.story-nav a{padding:8px 12px;border:1px solid #0e417526;border-radius:4px;font:12px/1.5 'TBTI Sans',sans-serif;text-decoration:none}.story-nav a.active{background:var(--blue);color:white}.story-bento{display:grid;grid-template-columns:1.35fr 1fr;gap:24px}.story-bento .card:first-child{grid-row:span 2;display:flex;flex-direction:column;justify-content:center}.home-headline{font-size:clamp(36px,4.4vw,58px)}.band a.story-light{background:var(--paper);color:var(--blue);border-color:var(--paper)}@media(max-width:700px){.story-bento{grid-template-columns:1fr}.story-bento .card:first-child{grid-row:auto}.story-nav{gap:8px}.story-nav a{font-size:11px}.story-quote{padding:22px}.home-headline{font-size:36px}}