:root{--navy:#10233f;--navy-2:#17365d;--cream:#f7f5ef;--paper:#fff;--ink:#15233a;--muted:#667085;--red:#b33a39;--red-dark:#8f292c;--gold:#c79c4c;--line:#e4e7ec;--shadow:0 22px 60px rgba(16,35,63,.1);--radius:22px}
    *{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;color:var(--ink);background:var(--cream);font-family:'DM Sans',sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased} a{color:inherit;text-decoration:none} img{max-width:100%;display:block} .container{width:min(1180px,calc(100% - 48px));margin:auto}
    h1,h2,h3,p{margin:0} h1,h2,h3{font-family:'Manrope',sans-serif;letter-spacing:-.035em} h2{font-size:clamp(2rem,4vw,3.35rem);line-height:1.08} h3{font-size:1.1rem;line-height:1.3}.eyebrow{font-size:.76rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--red)}
    .topbar{background:var(--navy);color:#e7edf5;font-size:.82rem}.topbar .container{display:flex;justify-content:space-between;gap:24px;padding:10px 0}.topbar strong{color:#fff}.topbar a{color:#f2d899}
    .nav{background:rgba(247,245,239,.88);backdrop-filter:blur(14px);position:sticky;top:0;z-index:5;border-bottom:1px solid rgba(16,35,63,.08)}.nav-inner{height:76px;display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:flex;align-items:center;gap:12px;font-family:'Manrope';font-weight:800;color:var(--navy);letter-spacing:-.04em}.brand-mark{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:var(--red);color:#fff;font-size:.82rem;box-shadow:inset 0 0 0 5px rgba(255,255,255,.16)}.brand small{display:block;font:500 .62rem 'DM Sans';letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}.nav-links{display:flex;gap:26px;font-size:.88rem;color:#475467}.nav-links a:hover{color:var(--red)}.nav-cta{padding:11px 17px;border-radius:999px;background:var(--red);color:#fff;font-weight:700;font-size:.82rem}.nav-cta:hover{background:var(--red-dark)}
    .hero{position:relative;overflow:hidden;background:var(--navy);color:#fff;padding:92px 0 74px}.hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 88% 18%,rgba(199,156,76,.27),transparent 30%),linear-gradient(120deg,rgba(16,35,63,.98),rgba(23,54,93,.88));}.hero:after{content:"";position:absolute;width:560px;height:560px;border:1px solid rgba(255,255,255,.12);border-radius:50%;right:-170px;top:-260px;box-shadow:0 0 0 52px rgba(255,255,255,.025),0 0 0 104px rgba(255,255,255,.025)}.hero .container{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center}.hero-copy{max-width:700px}.hero .eyebrow{color:#efcd7e;margin-bottom:20px}.hero h1{font-size:clamp(3.3rem,7vw,6.4rem);line-height:.96;font-weight:700;max-width:760px}.hero h1 em{display:block;font-family:'Newsreader';font-weight:400;color:#f3d68c;font-size:1.08em;letter-spacing:-.055em}.hero-title-small,.hero-title-main{display:block}.hero-title-small{font-size:.38em;line-height:1.15;letter-spacing:-.02em;color:#dbe4f1;font-weight:500;margin-bottom:8px}.hero-title-main{color: #ffff;font-size:.73em;line-height:1.02}.hero-lede{max-width:620px;margin:28px 0 32px;color:#dbe4f1;font-size:1.04rem}.hero-lede strong{display:block;color:#f3d68c;font:700 1.1em/1.35 'Manrope';margin-bottom:7px}.hero-lede span{display:block}.actions{display:flex;flex-wrap:wrap;gap:12px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border:1px solid transparent;border-radius:999px;padding:14px 22px;font-weight:700;font-size:.9rem;transition:.2s ease}.btn-primary{background:var(--red);color:#fff;box-shadow:0 9px 22px rgba(179,58,57,.25)}.btn-primary:hover{background:#d04d4b;transform:translateY(-2px)}.btn-light{border-color:rgba(255,255,255,.35);color:#fff}.btn-light:hover{background:#fff;color:var(--navy)}.hero-card{position:relative;min-height:440px;border-radius:28px;overflow:hidden;background:radial-gradient(circle at 78% 20%,rgba(199,156,76,.32),transparent 28%),linear-gradient(145deg,#234a76 0%,#142b4d 58%,#0b1b32 100%) center/cover;box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.18)}.hero-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 38%,rgba(4,14,29,.87))}.hero-card-copy{position:absolute;z-index:1;left:28px;right:28px;bottom:26px}.hero-card-copy span{color:#f3d68c;font-size:.72rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase}.hero-card-copy p{font:500 1.8rem/1.15 'Newsreader';margin-top:8px}.floating-note{position:absolute;z-index:2;inset:50% auto auto 50%;transform:translate(-50%,-50%);width:250px;height:250px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:rgba(255,255,255,.97);color:var(--navy);box-shadow:0 20px 50px rgba(0,0,0,.28);text-align:center;border:8px solid rgba(199,156,76,.72);padding:22px}.floating-note b{display:block;font:800 4.8rem/.82 "Manrope";letter-spacing:-.09em;color:var(--red)}.floating-note span{display:block;margin-top:9px;font:800 .88rem/1 "Manrope";letter-spacing:.1em}.floating-note small{display:block;margin-top:7px;color:var(--muted);font:700 .58rem/1.2 "DM Sans";letter-spacing:.1em}.floating-note strong{display:block;margin-top:10px;color:var(--navy);font:700 .66rem/1.18 "DM Sans";max-width:170px}
    .stats{background:#fff;border-bottom:1px solid var(--line)}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}.stat{padding:27px 22px;border-right:1px solid var(--line)}.stat:last-child{border:0}.stat strong{display:block;color:var(--navy);font:700 clamp(1.7rem,3vw,2.55rem)/1 'Manrope';letter-spacing:-.05em}.stat span{display:block;color:var(--muted);font-size:.84rem;margin-top:8px}
    section{padding:108px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:48px}.section-head p{max-width:470px;color:var(--muted);font-size:1rem}.section-kicker{margin-bottom:13px}.features{background:#fff}.feature-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.feature{padding:25px 20px;border:1px solid var(--line);border-radius:18px;min-height:260px;background:linear-gradient(145deg,#fff,#fafafa);transition:.2s ease}.feature:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#d4b879}.feature-no{color:var(--red);font:700 .8rem 'Manrope';letter-spacing:.1em}.feature h3{margin:54px 0 12px}.feature p{font-size:.88rem;color:var(--muted)}
    .timeline-section{background:var(--navy);color:#fff}.timeline-section .section-head p{color:#b9c7d9}.timeline{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.timeline-item{display:grid;grid-template-columns:68px 1fr;gap:18px;padding:24px;border:1px solid rgba(255,255,255,.13);border-radius:18px;background:rgba(255,255,255,.055);min-height:126px}.timeline-item.special{background:linear-gradient(135deg,rgba(179,58,57,.9),rgba(143,41,44,.78));border-color:transparent}.term{font:700 .77rem 'Manrope';color:#efcd7e;text-transform:uppercase;letter-spacing:.08em;padding-top:3px}.timeline-item.special .term{color:#fff}.timeline-item p{color: #fff;font:600 1rem/1.35 'Manrope'}.timeline-item small{display:block;margin-top:9px;color:#b9c7d9;font-size:.78rem}.timeline-item.special small{color:#f7dbda}.timeline-item .timeline-lecturer{color:#f3d68c;font-weight:600;margin-top:6px}.timeline-item.special .timeline-lecturer{color:#fff2c9}.timeline-item{display:grid;text-decoration:none;color:inherit;transition:.2s ease}.timeline-item:hover{transform:translateY(-3px);border-color:#efcd7e;background:rgba(255,255,255,.1)}.timeline-item:after{content:'↘';position:absolute;right:18px;bottom:14px;color:#efcd7e;font-size:1rem}.timeline-item{position:relative}.curriculum-details{background:#fff;padding:108px 0;border-top:1px solid var(--line)}.detail-intro{max-width:650px;margin-bottom:42px}.detail-intro p{color:var(--muted);margin-top:18px}.period-detail{display:grid;grid-template-columns:.9fr 1.1fr;gap:42px;align-items:stretch;padding:34px 0;border-top:1px solid var(--line);scroll-margin-top:96px}.period-detail:last-child{border-bottom:1px solid var(--line)}.period-image-placeholder{min-height:250px;border-radius:20px;display:grid;place-items:center;text-align:center;padding:24px;background:linear-gradient(145deg,#e9eef4,#dce5ef);color:var(--navy);font:700 1rem/1.3 'Manrope';border:1px dashed #9aaabd}.period-image-placeholder span{display:block;font-size:2rem;color:var(--red);margin-bottom:12px}.period-image-placeholder small{display:block;color:var(--muted);font:500 .78rem 'DM Sans';margin-top:8px}.period-copy .eyebrow{margin-bottom:10px}.period-copy h3{font-size:1.7rem;margin-bottom:13px}.period-copy>p{color:var(--muted);max-width:620px}.period-topics{margin:0 0 20px;padding-left:22px;color:var(--muted);max-width:680px}.period-topics li{padding:6px 0 6px 5px}.period-topics li::marker{color:var(--red);font-weight:700}.topic-groups h4{margin:20px 0 8px;color:var(--navy);font:700 1.05rem/1.3 'Manrope'}.topic-groups h4:first-child{margin-top:0}.period-subtopics{margin:8px 0 0;padding-left:24px}.period-subtopics li{padding:4px 0;color:var(--muted)}.detail-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}.detail-meta span{padding:8px 11px;border-radius:999px;background:var(--cream);color:var(--navy);font-size:.76rem;font-weight:700}.detail-note{margin-top:18px;padding:14px 16px;border-left:3px solid var(--gold);background:#faf8f1;color:#667085;font-size:.84rem}@media(max-width:760px){.period-detail{grid-template-columns:1fr;gap:22px}.period-image-placeholder{min-height:190px}.period-copy h3{font-size:1.45rem}}
    .faculty{background:var(--cream)}
    .faculty-layout{display:block}
    .faculty-intro{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:center;margin-bottom:48px}
    .faculty-panel{background:var(--navy);color:#fff;border-radius:28px;padding:42px;position:relative;overflow:hidden}
    .faculty-panel:after{content:"";position:absolute;width:240px;height:240px;border:1px solid rgba(255,255,255,.15);border-radius:50%;right:-80px;bottom:-100px}
    .faculty-panel .eyebrow{color:#efcd7e}
    .faculty-panel h3{font:500 2.2rem/1.05 'Newsreader';margin:18px 0 22px;position:relative;z-index:1}
    .faculty-panel p{color:#c3cfde;position:relative;z-index:1}
    .faculty-copy p{color:var(--muted);font-size:1.04rem;max-width:560px}
    .logos{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
    .logo-pill{padding:10px 13px;border:1px solid var(--line);border-radius:999px;font-size:.78rem;font-weight:700;color:var(--navy);background:#fff}
    .faculty-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .faculty-card{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:0 10px 28px rgba(16,35,63,.06);transition:.2s ease}
    .faculty-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#d4b879}
    .faculty-photo{height:220px;display:grid;place-items:center;text-align:center;padding:20px;background:linear-gradient(145deg,#17365d,#234a76 58%,#b33a39);color:#fff;position:relative}
    .faculty-photo:after{content:"";position:absolute;inset:14px;border:1px solid rgba(255,255,255,.3);border-radius:14px}
    .faculty-photo span{position:relative;z-index:1;font:800 3.3rem/1 'Manrope';letter-spacing:-.08em;color:#f3d68c}
    .faculty-photo small{position:absolute;z-index:1;bottom:25px;font-size:.68rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#fff}
    .faculty-card-copy{padding:22px 22px 24px}
    .faculty-card-copy h3{font-size:1.18rem;color:var(--navy);margin-bottom:7px}
    .faculty-card-copy .faculty-role{display:block;color:var(--red);font-size:.76rem;font-weight:700;margin-bottom:12px}
    .faculty-card-copy p{color:var(--muted);font-size:.88rem;line-height:1.55}
    @media(max-width:980px){.faculty-intro{grid-template-columns:1fr}.faculty-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:640px){.faculty-grid{grid-template-columns:1fr}.faculty-photo{height:200px}.faculty-panel{padding:30px}}
    .testimonials{background:#fff}.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.quote{padding:30px;border:1px solid var(--line);border-radius:20px;background:var(--cream);position:relative}.quote:before{content:'“';font:500 5rem/.5 'Newsreader';color:#d5b16c;position:absolute;right:24px;top:36px}.quote p{font:500 1.25rem/1.35 'Newsreader';max-width:90%;padding-top:30px}.quote .person{margin-top:24px;padding-top:16px;border-top:1px solid var(--line);font-size:.8rem;color:var(--muted)}.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.video-card{border:1px solid var(--line);border-radius:20px;overflow:hidden;background:var(--cream)}.video-frame{aspect-ratio:16/9;display:grid;place-items:center;background:radial-gradient(circle at 75% 20%,rgba(199,156,76,.28),transparent 24%),linear-gradient(145deg,#234a76,#10233f 72%);position:relative;color:#fff}.video-frame:before{content:'VIDEO';position:absolute;top:18px;left:20px;color:#efcd7e;font:700 .68rem 'Manrope';letter-spacing:.14em}.play-button{width:58px;height:58px;border-radius:50%;display:grid;place-items:center;background:#fff;color:var(--red);font-size:1.25rem;padding-left:3px;box-shadow:0 12px 28px rgba(0,0,0,.22)}.video-meta{padding:17px 20px}.video-meta strong{display:block;font:700 1rem 'Manrope'}.video-meta span{display:block;color:var(--muted);font-size:.78rem;margin-top:5px}.testimonial-feature-image{margin-top:28px;border-radius:24px;overflow:hidden;background:#10233f;box-shadow:var(--shadow)}.testimonial-images{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:28px}.testimonial-images .testimonial-feature-image{margin-top:0;aspect-ratio:1/1;border-radius:18px}.testimonial-images .testimonial-feature-image img{width:100%;height:100%;object-fit:cover}.testimonial-image-placeholder{display:grid;place-items:center;text-align:center;padding:18px;background:linear-gradient(145deg,#e9eef4,#dce5ef);border:1px dashed #9aaabd;color:var(--navy);font:700 .85rem/1.3 'Manrope'}.testimonial-image-placeholder span{display:block;font-size:1.8rem;color:var(--red);margin-bottom:8px}.testimonial-image-placeholder small{display:block;color:var(--muted);font:500 .72rem 'DM Sans';margin-top:6px}@media(max-width:900px){.testimonial-images{grid-template-columns:repeat(2,1fr)}}@media(max-width:480px){.testimonial-images{grid-template-columns:1fr 1fr;gap:9px}.testimonial-images .testimonial-feature-image{border-radius:12px}.video-grid{grid-template-columns:1fr 1fr;gap:9px}.video-card{border-radius:12px}.video-meta{padding:12px}.video-meta strong{font-size:.8rem}}.book-card{margin-top:28px;display:grid;grid-template-columns:260px 1fr;gap:30px;align-items:center;padding:26px;border:1px solid #d8c38e;border-radius:24px;background:linear-gradient(135deg,#fffdf6,#f6f0df);box-shadow:var(--shadow)}.book-cover-placeholder{min-height:260px;border-radius:14px;display:grid;place-items:center;text-align:center;padding:24px;background:linear-gradient(150deg,#17365d,#10233f 62%,#b33a39);color:#fff;border:7px solid rgba(255,255,255,.7);box-shadow:0 14px 25px rgba(16,35,63,.18)}.book-cover-placeholder span{display:block;color:#f3d68c;font:700 .68rem 'Manrope';letter-spacing:.16em;text-transform:uppercase}.book-cover-placeholder strong{display:block;margin-top:18px;font:500 2rem/1.05 'Newsreader';letter-spacing:-.03em}.book-copy .eyebrow{margin-bottom:10px}.book-copy h3{font-size:1.65rem;margin-bottom:12px}.book-copy p{color:var(--muted);max-width:550px}.book-copy .book-note{margin-top:17px;color:var(--red);font-size:.82rem;font-weight:700}@media(max-width:640px){.book-card{grid-template-columns:1fr;padding:20px}.book-cover-placeholder{min-height:210px}}.testimonial-feature-image img{width:100%;height:auto;display:block;max-height:720px;object-fit:cover}
    .apply-section{background:#f0eee7}.apply-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px}.apply-intro p{color:var(--muted);max-width:380px;margin-top:24px}.deadline{display:inline-flex;align-items:center;gap:8px;margin-top:24px;color:var(--red);font-weight:700;font-size:.85rem}.steps{border-top:1px solid #d4d6d3}.step{display:grid;grid-template-columns:60px 1fr;gap:20px;padding:24px 0;border-bottom:1px solid #d4d6d3}.step-no{font:700 1.8rem/1 'Manrope';color:var(--red)}.step h3{margin-bottom:7px}.step p{font-size:.9rem;color:var(--muted);max-width:600px}
    .cta-band{padding:82px 0;background:var(--red);color:#fff}.cta-content{display:flex;align-items:center;justify-content:space-between;gap:38px}.cta-band h2{max-width:650px}.cta-band p{margin-top:15px;color:#f7dcdb;max-width:620px}.cta-band .btn{background:#fff;color:var(--red)}.contact{margin-top:22px;font-size:.9rem}.contact a{text-decoration:underline;text-underline-offset:4px}.quick-contact{background:#fff;padding:72px 0;border-top:1px solid var(--line)}.quick-contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:58px;align-items:start}.quick-contact-copy p{color:var(--muted);margin-top:17px;max-width:410px}.advisor-box{margin-top:25px;padding:18px 20px;border-left:3px solid var(--gold);background:var(--cream);border-radius:0 14px 14px 0;font-size:.88rem}.advisor-box strong{display:block;color:var(--navy);margin-bottom:7px}.advisor-box a{color:var(--red);font-weight:700}.quick-form{display:grid;grid-template-columns:1fr 1fr;gap:14px}.quick-form label{display:block;color:var(--ink);font-size:.78rem;font-weight:700;margin-bottom:6px}.quick-form input{width:100%;border:1px solid #d6dbe3;border-radius:10px;padding:13px 14px;background:#fcfcfb;color:var(--ink);font:inherit;outline:none}.quick-form input:focus{border-color:var(--red);box-shadow:0 0 0 3px rgba(179,58,57,.1)}.quick-form .full{grid-column:1/-1}.quick-form-note{grid-column:1/-1;color:var(--muted);font-size:.76rem}.quick-form button{justify-self:start;border:0;cursor:pointer}.quick-contact .btn{font-family:inherit}@media(max-width:640px){.quick-contact-grid{grid-template-columns:1fr;gap:34px}.quick-form{grid-template-columns:1fr}.quick-form .full{grid-column:auto}.quick-form-note{grid-column:auto}}.footer{background:#0b1b32;color:#aab7ca;padding:24px 0;font-size:.77rem}.footer .container{display:flex;justify-content:space-between;gap:20px}.footer strong{color:#fff}
    @media(max-width:980px){.hero .container,.faculty-layout,.apply-layout{grid-template-columns:1fr}.hero-card{min-height:380px;max-width:640px}.feature-grid{grid-template-columns:repeat(2,1fr)}.feature:last-child{grid-column:span 2}.nav-links{display:none}.section-head{display:block}.section-head p{margin-top:18px}.cta-content{display:block}.cta-content .btn{margin-top:25px}}
    @media(max-width:640px){.container{width:min(100% - 32px,1180px)}.topbar .container{display:block;text-align:center}.topbar .container span{display:none}.nav-inner{height:66px}.brand small{font-size:.55rem}.nav-cta{padding:9px 13px;font-size:.72rem}.hero{padding:62px 0 52px}.hero h1{font-size:3.15rem}.hero-lede{font-size:.98rem}.hero-card{min-height:330px}.floating-note{width:190px;height:190px;padding:14px}.floating-note b{font-size:3.7rem}.floating-note span{font-size:.68rem}.floating-note small{font-size:.48rem}.floating-note strong{font-size:.56rem;max-width:135px;margin-top:7px}.stats-grid{grid-template-columns:repeat(2,1fr)}.stat{padding:21px 16px}.stat:nth-child(2){border-right:0}.stat:nth-child(-n+2){border-bottom:1px solid var(--line)}section{padding:72px 0}.feature-grid,.timeline,.quote-grid{grid-template-columns:1fr}.video-grid{grid-template-columns:repeat(2,1fr)}.feature{min-height:0}.feature h3{margin-top:30px}.feature:last-child{grid-column:auto}.timeline-item{grid-template-columns:52px 1fr;padding:20px}.faculty-panel{padding:30px}.apply-layout{gap:40px}.cta-band{padding:66px 0}.cta-band h2{font-size:2.25rem}.footer .container{display:block}.footer .container div+div{margin-top:8px}}
    @media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.feature:hover,.btn-primary:hover{transform:none}}
  
    /* Tăng độ rõ ảnh nền phần đầu trang */
    .hero:before{opacity:.48}
  
    /* Support badge emphasis: remove the square behind it and keep the circular badge prominent. */
    .hero-card{background:transparent;box-shadow:none;border:0;overflow:visible}
    .hero-card:after{display:none}
    .floating-note{width:270px;height:270px;border-width:10px;background:#fff;box-shadow:0 18px 55px rgba(0,0,0,.32),0 0 0 12px rgba(199,156,76,.12);}
    .floating-note b{font-size:5.4rem;text-shadow:0 4px 14px rgba(179,58,57,.16)}
    .floating-note span{font-size:.98rem;color:var(--red);}
    .floating-note small{font-size:.64rem;color:var(--navy);}
    .floating-note strong{font-size:.72rem;max-width:190px;}
    @media(max-width:980px){.floating-note{width:230px;height:230px}.floating-note b{font-size:4.5rem}}
    @media(max-width:640px){.hero-card{min-height:330px}.floating-note{width:210px;height:210px}.floating-note b{font-size:4.1rem}.floating-note span{font-size:.78rem}.floating-note small{font-size:.54rem}.floating-note strong{font-size:.62rem;max-width:150px}}

    .menu-toggle{display:none;border:0;background:transparent;color:var(--navy);padding:9px 7px;cursor:pointer;border-radius:10px}
    .menu-toggle span{display:block;width:23px;height:2px;margin:4px 0;background:currentColor;border-radius:2px;transition:.2s ease}
    .menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
    .menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
    .menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
    @media(max-width:980px) and (min-width:641px){.menu-toggle{display:block}.nav-links{display:none}}
    @media(max-width:640px){
      .nav-inner{position:relative;gap:8px}
      .menu-toggle{display:block;order:2;margin-left:auto}
      .nav-cta{order:3}
      .nav-links{display:none;position:absolute;z-index:20;top:calc(100% + 8px);left:0;right:0;flex-direction:column;gap:0;padding:8px;background:rgba(255,255,255,.98);border:1px solid rgba(16,35,63,.1);border-radius:16px;box-shadow:0 18px 40px rgba(16,35,63,.18)}
      .nav-links.is-open{display:flex}
      .nav-links a{padding:13px 14px;border-radius:10px;font-size:.9rem}
      .nav-links a:hover,.nav-links a:focus{background:#f4eee2;color:var(--red)}
      .nav-cta{font-size:.68rem;padding:9px 11px;white-space:nowrap}
      .brand{gap:8px;font-size:.92rem}
      .brand-mark{width:34px;height:34px;font-size:.7rem}
    }
  
    /* Keep the mobile navigation bar visible instead of hiding links behind a toggle. */
    @media(max-width:640px){
      .nav-inner.mobile-visible-nav-bar{height:auto;min-height:66px;flex-wrap:wrap;padding-top:8px}
      .nav-inner.mobile-visible-nav-bar .menu-toggle{display:none}
      .nav-inner.mobile-visible-nav-bar .nav-links{display:flex;position:static;order:4;flex:0 0 100%;width:100%;flex-direction:row;overflow-x:auto;gap:4px;padding:7px 0 9px;background:transparent;border:0;border-radius:0;box-shadow:none;white-space:nowrap;scrollbar-width:none}
      .nav-inner.mobile-visible-nav-bar .nav-links::-webkit-scrollbar{display:none}
      .nav-inner.mobile-visible-nav-bar .nav-links a{flex:0 0 auto;padding:8px 10px;background:#f4eee2;border-radius:999px;font-size:.72rem;color:var(--navy)}
      .nav-inner.mobile-visible-nav-bar .nav-links a:hover,.nav-inner.mobile-visible-nav-bar .nav-links a:focus{background:#ead8b4;color:var(--red)}
    }
  
    /* Keep the mobile navigation bar pinned while the page scrolls. */
    @media(max-width:640px){
      .nav.sticky-mobile-nav{position:sticky;top:0;z-index:50;background:rgba(247,245,239,.98);box-shadow:0 5px 18px rgba(16,35,63,.12)}
      .nav.sticky-mobile-nav .nav-inner{position:relative}
    }
  
    /* Fit all five mobile navigation items within the viewport. */
    @media(max-width:640px){
      .nav-inner.mobile-visible-nav-bar .nav-links.fit-all-mobile-nav-items{overflow:visible;justify-content:space-between;gap:0;white-space:normal}
      .nav-inner.mobile-visible-nav-bar .nav-links.fit-all-mobile-nav-items a{flex:1 1 0;min-width:0;padding:7px 3px;text-align:center;font-size:.62rem;line-height:1.15;white-space:normal}
    }

    .apply-section .quick-contact-grid{margin-top:76px;padding-top:72px;border-top:1px solid #d4d6d3}
    .apply-section .quick-contact-copy h2{color:var(--navy)}
    @media(max-width:640px){.apply-section .quick-contact-grid{margin-top:54px;padding-top:54px}}


    .registration-section{background:#f0eee7}
    .registration-section .quick-contact-grid{margin-top:0;padding-top:0;border-top:0}
    .registration-section .quick-contact-copy h2{color:var(--navy)}
    .registration-section .quick-contact-copy>p{max-width:520px}
    .registration-section .contact{margin-top:22px;font-size:.9rem}
    .registration-section .contact a{text-decoration:none}
    .btn.btn-light {background-color: transparent;}
    .faculty-intro h2 {color: var(--ink);}
    .faculty-panel h3 {color: #fff;}
    #chuong-trinh h2 {color: var(--ink);}
    #lo-trinh h2 {color: #fff;}