:root{--navy:#143f3c;--blue:#096b61;--blue2:#07564e;--soft:#e4f4ed;--text:#172f2a;--muted:#445851;--line:#dfe7e2;--max:1160px;--shadow:0 16px 48px #193b3910}
*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;scroll-padding-top:100px}body{font-family:"Be Vietnam Pro",Arial,sans-serif;color:var(--text);background:#fff;line-height:1.7;font-size:17px}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}a,button{ -webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:3px solid #bb8138;outline-offset:5px}.container{width:min(var(--max),calc(100% - 48px));margin:auto}.skip-link{position:fixed;top:-80px;left:20px;background:#fff;padding:12px;z-index:2000}.skip-link:focus{top:12px}
.contact-bar{background:#f3f6f3;border-bottom:1px solid var(--line)}.contact-inner{min-height:36px;display:flex;justify-content:space-between;align-items:center;gap:16px}.contact-phone,.mini-btn{font-size:14px;color:var(--muted)}.contact-phone{display:flex;gap:8px}.contact-phone strong{font-weight:700;color:var(--text)}.contact-actions{display:flex;gap:22px}.mini-btn:hover{color:var(--blue)}
.site-header{position:sticky;top:0;z-index:1000;background:#fffffffa;border-bottom:1px solid var(--line)}.nav-wrap{min-height:84px;display:flex;align-items:center;gap:28px}.logo-mark{width:64px;height:64px;flex-shrink:0;display:grid;place-items:center}.logo-mark img{display:block;width:100%;height:100%}.main-nav{display:flex;align-items:center;gap:24px;margin-left:auto}.nav-link,.nav-button{font-size:15px;font-weight:700;border:0;background:none;color:var(--text);white-space:nowrap}.nav-link:hover,.nav-button:hover,.nav-link[aria-current]{color:var(--blue)}.nav-link[aria-current]{text-decoration:underline;text-underline-offset:8px}.nav-item{position:relative}.caret{font-size:14px;margin-left:4px}.dropdown{display:none;position:absolute;left:-16px;top:100%;padding:18px 8px 8px;min-width:235px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow)}.nav-item:hover .dropdown,.nav-item:focus-within .dropdown,.nav-item.expanded .dropdown{display:grid}.dropdown a{padding:8px 12px;font-size:15px;border-radius:6px}.dropdown a:hover{background:var(--soft)}.enroll-btn{background:var(--blue);color:#fff;padding:10px 17px;border-radius:8px;font-size:15px;font-weight:700;white-space:nowrap}.mobile-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--navy)}
.hero{background:linear-gradient(115deg,#eef8f1 0%,#fff8e9 100%);position:relative;overflow:hidden;border-bottom:1px solid var(--line)}.bamboo{display:none}.hero-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:80px;align-items:center;padding:72px 0}.eyebrow{color:var(--blue);font-size:14px;font-weight:700;letter-spacing:.04em;display:flex;gap:8px;align-items:center}.eyebrow>span:first-child{font-size:14px}.hero-title{font-size:clamp(40px,4.7vw,60px);font-weight:700;letter-spacing:-2px;line-height:1.15;margin-top:22px}.brand-subline{font-size:clamp(42px,4.7vw,60px);font-weight:700;line-height:1.2;letter-spacing:-2px;color:var(--blue)}.orange-line{height:3px;width:38px;background:#d98432;margin:24px 0}.hero-slogan{font-size:20px;font-weight:600;margin-bottom:12px}.hero-description{font-size:17px;color:var(--muted);max-width:450px;line-height:1.9}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.primary-btn,.secondary-btn{padding:12px 18px;min-height:48px;border-radius:8px;font-weight:700;font-size:15px;display:inline-flex;align-items:center;justify-content:center}.primary-btn{background:var(--blue);color:#fff}.secondary-btn{background:transparent;border:1px solid #b8c9bf;color:var(--navy)}.primary-btn:hover,.enroll-btn:hover{background:var(--blue2)}.secondary-btn:hover{background:#fff}
.roadmap-card{padding:26px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);scroll-margin-top:110px}.roadmap-title{font-size:21px;font-weight:700;line-height:1.4}.title-underline{height:1px;background:var(--line);margin:18px 0 8px}.roadmap-list{display:grid}.roadmap-item{display:grid;grid-template-columns:42px 1fr 16px;align-items:center;gap:14px;padding:15px 0;border-bottom:1px solid #edf0ec}.roadmap-item:last-child{border-bottom:0;padding-bottom:2px}.roadmap-icon{height:42px;width:42px;border-radius:10px;display:grid;place-items:center;font-size:23px;background:var(--soft);color:var(--blue);font-family:serif}.roadmap-item h3{font-size:16px;font-weight:700}.roadmap-item p{font-size:14px;color:var(--muted);margin-top:3px}.roadmap-item:hover h3{color:var(--blue);text-decoration:underline;text-underline-offset:4px}.arrow{color:#447064;font-size:22px}
.section{padding:64px 0}.section-soft{background:#f8faf7;border-top:1px solid var(--line)}.section-heading{max-width:700px;margin-bottom:28px}.section-heading>span{font-size:14px;letter-spacing:.12em;text-transform:uppercase;color:var(--blue);font-weight:700}.section-heading h2{font-size:29px;line-height:1.4;letter-spacing:-.6px;margin-top:8px;font-weight:700}.section-heading p{color:var(--muted);font-size:16px;margin-top:10px}.level-grid,.special-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.info-card{border:1px solid var(--line);border-radius:12px;padding:24px;background:#fff;display:flex;flex-direction:column;align-items:flex-start;transition:border-color .2s}.info-card:hover{border-color:#8eafa0}.badge{display:inline-block;background:var(--soft);color:var(--blue);font-size:14px;font-weight:700;padding:4px 9px;border-radius:5px}.info-card h3{font-size:18px;line-height:1.5;font-weight:700;margin-top:16px}.info-card p{color:var(--muted);font-size:15px;margin:9px 0 20px}.card-link{font-size:15px;font-weight:700;color:var(--blue);margin-top:auto}.card-link:hover{text-decoration:underline;text-underline-offset:4px}footer{background:var(--navy);color:#fff;padding:32px 0}.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}.footer-title{font-size:16px;font-weight:700}.footer-note{font-size:14px;color:#c1d0c8;margin-top:5px}.floating-contact{position:fixed;right:18px;bottom:18px;z-index:900}.float-phone{display:none}.float-zalo{display:grid;place-items:center;background:var(--blue);color:#fff;width:52px;height:52px;border:3px solid #fff;border-radius:50%;font-size:14px;font-weight:700;box-shadow:0 4px 16px #183b3926}
@media(max-width:1050px){.nav-wrap{gap:18px}.main-nav{gap:12px}.nav-link,.nav-button{font-size:14px}.hero-grid{gap:36px}.enroll-btn{font-size:14px;padding:10px 12px}}
@media(max-width:1100px){.nav-wrap{min-height:72px}.mobile-toggle{display:block;margin-left:auto;order:2}.enroll-btn{order:1;margin-left:auto}.main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;padding:20px 24px;border-bottom:1px solid var(--line);max-height:calc(100dvh - 72px);overflow:auto;align-items:stretch}.main-nav.open{display:flex;flex-direction:column;gap:18px}.nav-link,.nav-button{font-size:16px}.dropdown{position:static;box-shadow:none;border:0;border-left:2px solid var(--line);border-radius:0;margin-top:10px;padding:0 8px}.hero-grid{gap:28px;padding:48px 0}.hero-title,.brand-subline{font-size:44px}.roadmap-card{padding:20px}.level-grid,.special-grid{gap:12px}.info-card{padding:20px}}
@media(max-width:620px){.container{width:calc(100% - 36px)}.contact-inner{min-height:32px}.contact-phone{font-size:14px}.contact-actions{display:none}.hero-grid{grid-template-columns:1fr;padding:38px 0;gap:32px}.hero-title,.brand-subline{font-size:46px;letter-spacing:-1.5px}.eyebrow{font-size:14px}.hero-slogan{font-size:18px}.hero-description{font-size:16px}.hero-actions{gap:10px}.primary-btn,.secondary-btn{padding:12px 14px;font-size:14px}.roadmap-card{padding:22px}.section{padding:42px 0}.section-heading h2{font-size:24px}.level-grid,.special-grid{grid-template-columns:1fr}.info-card{padding:22px}.info-card p{margin-bottom:16px}.footer-inner{align-items:flex-start;flex-direction:column;gap:12px}.footer-note{padding-right:48px}}
.learning-hub{padding:56px 0 64px;background:#fff}.learning-paths{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}.learning-panel{min-width:0;border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column}.path-heading{padding:28px 28px 22px;background:#edf8f2;border-top:4px solid #168475}.application-panel .path-heading{background:#fff3e2;border-top-color:#c57824}.application-panel .path-label{color:#98531a}.path-label{font-size:14px;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);font-weight:700}.path-heading h2{font-size:25px;line-height:1.4;letter-spacing:-.6px;font-weight:700;margin-top:7px}.path-heading p{font-size:15px;color:var(--muted);margin-top:7px}.path-list{list-style:none;padding:0 16px;margin:0}.path-list li+li{border-top:1px solid var(--line)}.path-row{display:flex;align-items:center;gap:16px;padding:18px 12px;min-height:94px;border-radius:8px;transition:background .15s}.path-row:hover{background:var(--soft)}.path-row:focus-visible{outline-offset:-3px}.level-marker,.field-marker{width:48px;height:52px;flex-shrink:0;display:flex;align-items:center;justify-content:center;border-radius:9px;background:var(--soft);color:var(--blue)}.level-marker{flex-direction:column;font-size:14px;font-weight:700;line-height:1.2;letter-spacing:.04em}.level-marker strong{font-size:23px;line-height:1.3;font-weight:700}.field-marker{font-family:serif;font-size:26px;background:#ffecd0;color:#935118}.path-copy{min-width:0;flex:1}.path-copy h3{font-size:17px;font-weight:700;line-height:1.5}.path-copy p{font-size:14px;color:var(--muted);margin-top:4px;line-height:1.6}.path-arrow{font-size:18px;color:var(--blue);flex-shrink:0}.path-footer{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px 16px;margin-top:auto;padding:16px 28px;background:#f8faf7;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}.path-footer a{color:var(--blue);font-weight:700;padding:4px 0}.path-footer a:hover{text-decoration:underline;text-underline-offset:4px}
@media(max-width:850px){.learning-paths{gap:18px}.path-heading{padding:24px 22px 18px}.path-row{gap:12px;padding:16px 6px}.path-footer{padding:14px 22px}.path-copy h3{font-size:16px}}
@media(max-width:620px){.learning-hub{padding:32px 0 40px}.learning-paths{grid-template-columns:1fr;gap:22px}.path-heading h2{font-size:23px}.path-list{padding:0 16px}.path-row{min-height:88px}.path-copy p{font-size:14px}.path-footer{font-size:14px}.path-heading{padding-bottom:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* Follow the learning order: level, resources, practical applications. */
.hero-grid{gap:48px;padding:48px 0}.learning-paths{grid-template-columns:minmax(0,1fr);gap:32px}.learning-paths .roadmap-list{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:32px}.learning-paths .roadmap-item{padding:18px 0}.learning-paths .roadmap-item:last-child{padding-bottom:18px}.application-panel .path-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));padding:12px 16px;gap:12px}.application-panel .path-list li+li{border-top:0}.application-panel .path-row{height:100%;align-items:flex-start}.application-panel .path-arrow{align-self:center}
@media(max-width:850px){.hero-grid{grid-template-columns:minmax(0,1fr);gap:28px}.hero-description{max-width:650px}.application-panel .path-list{grid-template-columns:minmax(0,1fr);gap:0;padding:0 16px}.application-panel .path-list li+li{border-top:1px solid var(--line)}.application-panel .path-row{align-items:center}}
@media(max-width:620px){.hero-grid{padding:32px 0}.learning-paths{gap:24px}.learning-paths .roadmap-list{grid-template-columns:minmax(0,1fr)}.learning-paths .roadmap-item{gap:12px}}

.hero-description,.roadmap-item p,.path-copy p,.path-heading p{font-weight:500}.roadmap-item h3,.path-copy h3{font-size:18px}.roadmap-title{font-size:24px}.path-heading h2{font-size:27px}.roadmap-icon{background:#dff1ea;color:#0b6558}.roadmap-icon.orange{background:#fff0d7;color:#9a5514}.roadmap-icon.purple{background:#eee8fa;color:#654191}.roadmap-icon.green{background:#e6f3fa;color:#245b7c}.enroll-btn{background:#ad502f}.enroll-btn:hover{background:#8e3d21}.hero-title,.brand-subline{font-weight:800}.secondary-btn{border-color:#548375;background:#fff}.path-footer{font-size:14px}@media(max-width:620px){.hero-description{font-size:17px}.path-copy p,.roadmap-item p{font-size:15px}.path-heading h2{font-size:25px}.logo-mark{width:56px;height:56px}.nav-wrap{gap:12px}.enroll-btn{font-size:14px}.eyebrow{font-size:13px;letter-spacing:0}.contact-phone{font-size:13px}}

/* Compact, balanced resource tiles with consistent reading alignment. */
.learning-hub{padding:36px 0 44px}
.learning-paths{gap:24px}
.learning-paths .roadmap-card{padding:24px;box-shadow:none}
.learning-paths .roadmap-title{font-size:26px;line-height:1.4}
.learning-paths .title-underline{margin:16px 0 20px}
.learning-paths .roadmap-list{gap:14px;align-items:stretch}
.learning-paths .roadmap-item,.learning-paths .roadmap-item:last-child{grid-template-columns:44px minmax(0,1fr) 16px;gap:14px;padding:20px;border:1px solid var(--line);border-radius:12px;align-items:start}
.learning-paths .roadmap-item h3{font-size:19px;line-height:1.5;margin:0}
.learning-paths .roadmap-item p{font-size:16px;line-height:1.7;margin-top:5px}
.learning-paths .roadmap-icon{width:44px;height:44px}
.learning-paths .roadmap-item .arrow{align-self:center}
.learning-paths .roadmap-item:hover{border-color:var(--blue)}
.learning-paths .path-heading{padding:22px 24px 18px}
.learning-paths .path-heading h2{font-size:26px}
.learning-paths .path-copy p{font-size:16px}
@media(max-width:620px){.learning-hub{padding:24px 0 32px}.learning-paths .roadmap-card{padding:20px}.learning-paths .roadmap-title,.learning-paths .path-heading h2{font-size:24px}.learning-paths .roadmap-item,.learning-paths .roadmap-item:last-child{padding:16px 12px;gap:10px}.learning-paths .path-heading{padding:20px}.learning-paths .roadmap-item h3{font-size:18px}}