@import "https://fonts.googleapis.com/css2?family=Quicksand:wght@300;400;500;600;700&display=swap";:root{--primary-color:#1e73be;--primary-dark:#155a96;--secondary-color:#00a859;--accent-color:#0066bf;--light-bg:#f8f9fa;--white:#fff;--text-main:#333;--text-muted:#6c757d;--grad-blue:linear-gradient(135deg, #1e73be, #155a96);--grad-red:linear-gradient(135deg, #00a859, #008a49);--grad-gold:linear-gradient(135deg, #1e73be, #00a859);--shadow-sm:0 4px 6px #0000000d;--shadow-md:0 10px 20px #00000014;--shadow-lg:0 20px 30px #0000001a;--glass-bg:#ffffffd9;--glass-border:#ffffff4d;--font-family:"Quicksand", sans-serif;--transition:all .3s cubic-bezier(.25, .8, .25, 1)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-family);color:var(--text-main);background-color:#f4f6f8;line-height:1.6;overflow-x:hidden}a{color:inherit;text-decoration:none}ul{list-style:none}img{max-width:100%;height:auto;display:block}.site-wrapper{background-color:#fff;max-width:1200px;min-height:100vh;margin:0 auto;box-shadow:0 0 20px #0000001a}.container{width:100%;margin-left:auto;margin-right:auto;padding-left:15px;padding-right:15px}.section{padding:40px 0}.header{z-index:10;width:100%;position:relative}#logo img{max-height:103px}.header-top{color:#fff;padding:5px 0;background-color:#5e5e5eed!important}.header-bottom{background-color:#00a859}.nav{margin:0;padding:0;list-style:none;display:flex}.nav>li>a{color:#fff;text-transform:uppercase;padding:10px 15px;font-size:13px;font-weight:700;text-decoration:none}.nav>li>a:hover{background-color:#000}.home-top-section{grid-template-columns:2fr 1fr;gap:30px;margin-bottom:40px;display:grid}.slider-container{width:100%;position:relative;overflow:hidden}.slide-item{width:100%;display:none}.slide-item.active{display:block}.slide-image{aspect-ratio:16/9;object-fit:cover;width:100%;display:block}.date-badge{color:#fff;text-align:center;z-index:2;background-color:#1e73be;flex-direction:column;justify-content:center;align-items:center;min-width:45px;padding:5px;font-weight:700;display:flex;position:absolute;top:0;left:0}.date-badge .day{margin-bottom:2px;font-size:16px;line-height:1}.date-badge .month{text-transform:uppercase;font-size:11px;line-height:1}.section-title{text-align:center;color:#00a859;text-transform:uppercase;margin-bottom:25px;font-family:Quicksand,sans-serif;font-size:24px;font-weight:600}.post-grid-2{grid-template-columns:1fr 1fr;gap:15px;display:grid}.post-grid-3{grid-template-columns:repeat(3,1fr);gap:30px;display:grid}.post-card{background:#fff;border:1px solid #e0e0e0;gap:15px;height:100%;padding:0;display:flex}.post-card-vertical{background:0 0;border:none;flex-direction:column;padding:0}.post-card-img-wrapper{flex-shrink:0;width:40%;position:relative}.post-card-vertical .post-card-img-wrapper{width:100%}.post-card img{object-fit:cover;width:100%;height:100%;display:block}.post-card-content{flex-direction:column;justify-content:flex-start;padding:15px 15px 15px 0;display:flex}.post-card-vertical .post-card-content{text-align:center;padding:15px 0}.post-card-title{color:#333;font-family:Quicksand,sans-serif;font-size:14px;font-weight:600;line-height:1.4;text-decoration:none}.post-card-title:hover{color:#1e73be}.post-date-small{color:#999;margin-top:5px;font-size:11px}.courses-block{color:#fff;background-color:#1e73be;margin:40px 0;padding:40px 0}.courses-block .section-title{color:#fff;margin-bottom:30px}.courses-list{grid-template-columns:1fr 1fr;gap:0 40px;display:grid}.course-item{border-top:1px solid #ffffff26;padding:15px;transition:background-color .3s}.course-item.expanded{background-color:#0000001a}.courses-list .course-item:last-child,.courses-list .course-item:nth-last-child(2){border-bottom:1px solid #ffffff26}.course-title-btn{color:#fff;cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;font-family:Quicksand,sans-serif;font-size:15px;text-decoration:none;display:flex}.course-title-btn:hover{opacity:.8}.course-title-icon{margin-right:15px;font-family:monospace;transition:transform .3s;display:inline-block}.course-item.expanded .course-title-btn{font-weight:700}.course-item:not(.expanded) .course-title-icon{transform:scaleY(.7)scaleX(1.2)}.course-item.expanded .course-title-icon{content:"^";transform:scaleY(.7)scaleX(1.2)rotate(180deg)}.partners-grid{grid-template-columns:repeat(6,1fr);gap:0;display:grid}.partner-item{text-align:center;border-bottom:1px dotted #ccc;border-right:1px dotted #ccc;flex-direction:column;justify-content:flex-start;align-items:center;padding:30px 10px;display:flex}.partner-item:nth-child(6n){border-right:none}.partner-item:nth-last-child(-n+6){border-bottom:none}.partner-item img{max-width:80px;height:auto;margin-bottom:15px}.partner-item h4{color:#333;margin-bottom:0;font-size:13px;font-weight:600;line-height:1.4}.footer{color:#fff;background-color:#004f9e;padding:40px 0}.btn{cursor:pointer;transition:var(--transition);text-align:center;border:none;border-radius:50px;padding:12px 28px;font-weight:600;display:inline-block}.btn-lg{padding:16px 36px;font-size:1.1rem}.btn-primary{background-color:var(--primary-color);color:var(--white);box-shadow:0 4px 15px #e639464d}.btn-primary:hover{background-color:var(--primary-dark);transform:translateY(-3px);box-shadow:0 8px 20px #e6394666}.btn-outline{color:var(--secondary-color);border:2px solid var(--secondary-color);background-color:#0000}.btn-outline:hover{background-color:var(--secondary-color);color:var(--white)}.btn-text{color:var(--primary-color);padding:0;font-weight:700}.btn-text i{transition:var(--transition);margin-left:8px}.btn-text:hover i{transform:translate(5px)}.header{z-index:1000;width:100%;transition:var(--transition);background:var(--white);position:relative}.header.scrolled{background:#fffffff2}.header-container{justify-content:space-between;align-items:center;display:flex}.logo{align-items:center;gap:12px;display:flex}.logo-img{border-radius:8px;height:40px}.logo-text{color:var(--secondary-color);letter-spacing:1px;font-size:1.5rem;font-weight:800}.nav-list{gap:30px;display:flex}.nav-link{color:var(--text-main);padding:5px 0;font-weight:500;position:relative}.nav-link:after{content:"";background-color:var(--primary-color);width:0;height:2px;transition:var(--transition);position:absolute;bottom:0;left:0}.nav-link:hover:after,.nav-link.active:after{width:100%}.nav-link.active{color:var(--primary-color)}.mobile-toggle{color:var(--secondary-color);cursor:pointer;background:0 0;border:none;font-size:1.5rem;display:none}.hero{justify-content:center;align-items:center;min-height:100vh;padding-top:80px;display:flex;position:relative}.hero-bg{z-index:-1;width:100%;height:100%;position:absolute;top:0;left:0;overflow:hidden}.hero-bg img{object-fit:cover;width:100%;height:100%}.hero-bg .overlay{background:linear-gradient(90deg,#ffffffe6 0%,#fff6 100%);width:100%;height:100%;position:absolute;top:0;left:0}.hero-content{max-width:700px;margin-right:auto;padding:60px}.hero-title{color:var(--secondary-color);margin-bottom:20px;font-size:4rem;font-weight:800;line-height:1.1}.hero-desc{color:var(--text-muted);margin-bottom:40px;font-size:1.2rem}.hero-buttons{gap:20px;display:flex}.section-subtitle{color:var(--primary-color);letter-spacing:2px;text-transform:uppercase;margin-bottom:10px;font-size:.9rem;font-weight:700;display:inline-block}.section-title{color:var(--secondary-color);margin-bottom:20px;font-size:2.5rem;font-weight:800}.about-container{grid-template-columns:1fr 1fr;align-items:center;gap:60px;display:grid}.feature-list{margin-top:30px}.feature-list li{align-items:center;gap:12px;margin-bottom:15px;font-size:1.1rem;display:flex}.feature-list i{color:var(--primary-color);font-size:1.2rem}.about-image-wrapper{position:relative}.about-image .placeholder-img{border-radius:20px;justify-content:center;align-items:center;height:500px;display:flex}.floating-badge{background:var(--white);box-shadow:var(--shadow-lg);border-radius:16px;align-items:center;gap:15px;padding:20px 30px;animation:4s ease-in-out infinite float;display:flex;position:absolute;bottom:30px;left:-30px}.badge-number{color:var(--primary-color);font-size:3rem;font-weight:800;line-height:1}.badge-text{color:var(--secondary-color);font-weight:600;line-height:1.2}@keyframes float{0%{transform:translateY(0)}50%{transform:translateY(-15px)}to{transform:translateY(0)}}.courses-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px;margin-top:50px;display:grid}.course-card .placeholder-img{justify-content:center;align-items:center;height:200px;display:flex}.course-content{padding:30px;position:relative}.course-tag{background:var(--white);color:var(--secondary-color);box-shadow:var(--shadow-sm);border-radius:20px;padding:5px 15px;font-size:.85rem;font-weight:700;position:absolute;top:-15px;right:30px}.course-title{color:var(--secondary-color);margin-bottom:15px;font-size:1.5rem}.course-desc{color:var(--text-muted);margin-bottom:25px}.cta-panel{background:var(--grad-blue);color:var(--white);padding:80px 40px}.cta-title{margin-bottom:15px;font-size:2.5rem}.cta-desc{opacity:.9;max-width:600px;margin-bottom:40px;margin-left:auto;margin-right:auto;font-size:1.2rem}.footer{color:#fff;background-color:#004f9e;margin-top:auto;padding-top:80px}.footer-grid{grid-template-columns:2fr 1fr 1fr 1.5fr;gap:40px;margin-bottom:60px;display:grid}.footer-logo{margin-bottom:20px}.footer-desc{color:#ffffffb3;margin-bottom:25px}.social-links{gap:15px;display:flex}.social-links a{width:40px;height:40px;transition:var(--transition);background:#ffffff1a;border-radius:50%;justify-content:center;align-items:center;display:flex}.social-links a:hover{background:var(--primary-color);transform:translateY(-3px)}.footer-heading{margin-bottom:25px;padding-bottom:10px;font-size:1.2rem;position:relative}.footer-heading:after{content:"";background:var(--primary-color);width:40px;height:2px;position:absolute;bottom:0;left:0}.footer-links li{margin-bottom:12px}.footer-links a{color:#ffffffb3;transition:var(--transition)}.footer-links a:hover{color:var(--primary-color);padding-left:5px}.footer-contact li{color:#ffffffb3;gap:15px;margin-bottom:15px;display:flex}.footer-contact i{color:var(--primary-color);margin-top:5px}.footer-bottom{text-align:center;color:#ffffff80;background:#0003;padding:20px 0;font-size:.9rem}@media (width<=992px){.hero-title{font-size:3rem}.about-container{grid-template-columns:1fr}.about-image-wrapper{order:-1}.footer-grid{grid-template-columns:1fr 1fr}}@media (width<=768px){.mobile-toggle{display:block}.navbar{background:var(--white);width:100%;height:calc(100vh - 80px);transition:var(--transition);box-shadow:var(--shadow-md);flex-direction:column;padding:40px 20px;position:fixed;top:80px;left:-100%}.navbar.active{left:0}.nav-list{flex-direction:column;align-items:center;gap:20px}.header-actions .btn{display:none}.hero-content{text-align:center;margin:0 auto;padding:30px}.hero-bg .overlay{background:#ffffffd9}.hero-buttons{flex-direction:column;justify-content:center}}@media (width<=576px){.hero-title{font-size:2.5rem}.footer-grid{grid-template-columns:1fr}}.post-grid-4{grid-template-columns:repeat(4,1fr);gap:20px;display:grid}.footer-banners{width:100%;display:flex}.footer-banner{text-align:center;color:#fff;text-transform:uppercase;flex:1;padding:15px 10px;font-size:13px;font-weight:700}.footer-banner.blue{background-color:#1e73be}.footer-banner.green{background-color:#8da959}.footer-banner.orange{background-color:#d97550}.footer-content-custom{color:#fff;background-color:#004b93;padding:40px 0}.footer-content-custom h3{color:#fff;margin-bottom:20px;font-size:18px;font-weight:600}.footer-content-custom p{margin-bottom:10px;font-size:14px;line-height:1.6}.footer-columns{justify-content:space-between;display:flex}.footer-col-left,.footer-col-right{flex:1}.header{z-index:1000;width:100%;box-shadow:var(--shadow-sm);background:var(--white);padding:0;position:relative}.header-top{color:#fff;background-color:#5e5e5eed;min-height:39px;font-size:.9rem}.top-bar-container{justify-content:space-between;align-items:center;height:39px;display:flex}.top-nav-left{gap:20px;display:flex}.top-nav-left a{color:#fffc;transition:var(--transition);font-weight:600}.top-nav-left a:hover{color:#fff}.top-nav-right{align-items:center;gap:20px;display:flex}.search-box{background:#0003;border-radius:20px;align-items:center;padding:2px 10px;display:flex}.search-box input{color:#fff;background:0 0;border:none;outline:none;padding:4px 8px}.search-box input::placeholder{color:#fff9}.social-icons{gap:15px;display:flex}.social-icons a{color:#fffc;transition:var(--transition)}.social-icons a:hover{color:#fff}.header-main{background-blend-mode:overlay;background-color:#0066bfe3;background-image:url(/assets/vienatec/trongdong.png);justify-content:center;align-items:center;height:149px;display:flex}.logo-center{justify-content:center;width:100%;display:flex}.logo-img{max-height:103px}.header-bottom{background-color:#00a859;align-items:center;height:50px;display:flex}.nav-list{justify-content:center;gap:20px;width:100%;display:flex}.nav-list li{position:relative}.nav-list li:not(:last-child):after{content:"";background-color:#ffffff80;width:1px;height:14px;position:absolute;top:50%;right:-10px;transform:translateY(-50%)}.nav-link{color:#fffffff2;text-transform:uppercase;white-space:nowrap;padding:15px 0;font-size:14px;font-weight:700}.nav-link:hover,.nav-link.active{color:#fff}.nav-link:after{background-color:#fff}@media (width<=992px){.header-main{height:auto;padding:15px 0}.logo-img{max-height:60px}.header-bottom{display:none}.navbar{top:0}}