html.lenis,html.lenis body{height:auto}.lenis:not(.lenis-autoToggle).lenis-stopped{overflow:clip}.lenis [data-lenis-prevent],.lenis [data-lenis-prevent-wheel],.lenis [data-lenis-prevent-touch],.lenis [data-lenis-prevent-vertical],.lenis [data-lenis-prevent-horizontal]{overscroll-behavior:contain}.lenis.lenis-smooth iframe{pointer-events:none}.lenis.lenis-autoToggle{transition-behavior:allow-discrete;transition-property:overflow;transition-duration:1ms}
:root{--ink:#102a43;--ink2:#40566b;--muted:#6c8094;--bg:#fff;--card:#fff;--line:#d5e4f0;--brand:#004aad;--brand-dark:#00377f;--brand-soft:#dae9f5;--accent:#5699c9;--accent-soft:#eaf3f9;--pastel-mint:#eafaf3;--pastel-peach:#fff0e7;--pastel-yellow:#fffbdc;--danger-soft:#fff0f0;--danger:#bd4c56;--success-soft:#eaf8f0;--success:#28835b;--gold:#f3a92f;--zalo:#0068ff;--shadow:0 18px 55px #00346e1c;--shadow-soft:0 10px 30px #00346e12;--radius:18px}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;scroll-padding-top:88px}body{color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;font-family:Segoe UI,Helvetica Neue,Arial,sans-serif;font-size:17px;line-height:1.65;overflow-x:clip}.skip-link{z-index:1000;background:var(--brand);color:#fff;border-radius:8px;padding:10px 14px;font-weight:800;text-decoration:none;position:fixed;top:8px;left:8px;transform:translateY(-160%)}.skip-link:focus{transform:translateY(0)}img{max-width:100%;display:block}.wrap{width:min(1180px,100% - 40px);margin-inline:auto}section{padding:92px 0}.section-soft{background:radial-gradient(circle at 8% 20%,#d0f7e694,#0000 28%),radial-gradient(circle at 92% 10%,#ffe1d38c,#0000 26%),#f7fbfe}h1,h2,h3{color:var(--ink);letter-spacing:-.035em;text-wrap:balance;font-weight:800;line-height:1.14}h2{max-width:760px;margin-bottom:14px;font-size:clamp(2rem,4vw,3rem)}p{color:var(--ink2)}a{color:var(--brand-dark)}.eyebrow{width:fit-content;color:var(--brand);letter-spacing:.1em;text-transform:uppercase;margin-bottom:14px;font-size:.78rem;font-weight:800}.lead{max-width:720px;color:var(--ink2);font-size:1.15rem}.lead-spaced{margin-bottom:32px}.lead-tight{margin-bottom:22px}.lead-wide{margin-bottom:34px}.center{text-align:center;margin-inline:auto}.muted{color:var(--muted)}.note{margin-top:20px;font-size:1rem}.btn{cursor:pointer;min-height:50px;font:inherit;touch-action:manipulation;border:1px solid #0000;border-radius:10px;justify-content:center;align-items:center;padding:13px 24px;font-weight:750;line-height:1.2;text-decoration:none;transition:transform .2s,box-shadow .2s,color .2s,background-color .2s,border-color .2s;display:inline-flex}.btn:hover{transform:translateY(-2px)}.btn:active{transform:translateY(1px)scale(.99)}.btn-primary{color:#fff;background:var(--brand);box-shadow:0 12px 25px #004aad47}.btn-primary:hover{color:#fff;background:var(--brand-dark);box-shadow:0 16px 32px #004aad57}.btn-ghost{color:var(--ink);background:#ffffffc2;border-color:#b8d2e6}.btn-ghost:hover{border-color:var(--brand);color:var(--brand-dark);background:#fff}.btn-row{flex-wrap:wrap;gap:12px;margin-top:28px;display:flex}.hero-action{margin-top:28px}.hero-action>p{color:var(--ink);font-size:.96rem;font-weight:750}.hero-action .btn-row{margin-top:10px}:focus-visible{outline-offset:3px;outline:3px solid #ffb95c}header.nav{z-index:40;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#ffffffe6;transition:box-shadow .25s,background-color .25s;position:sticky;top:0}header.nav.is-scrolled{background:#fffffff7;box-shadow:0 8px 26px #002a5214}.nav-in{grid-template-columns:auto 1fr auto;align-items:center;gap:40px;min-height:76px;display:grid}.logo{color:var(--ink);letter-spacing:-.02em;white-space:nowrap;align-items:center;gap:10px;font-size:1.12rem;font-weight:800;text-decoration:none;display:inline-flex}.logo strong{color:var(--brand)}.logo-mark{color:#fff;background:var(--brand);border-radius:10px;place-items:center;width:36px;height:36px;font-size:.95rem;display:grid;box-shadow:0 8px 18px #004aad40}.main-nav{justify-content:center;align-items:center;gap:30px;display:flex}.main-nav a{color:var(--ink);font-size:.9rem;font-weight:700;text-decoration:none;position:relative}.main-nav a:after{background:var(--brand);content:"";border-radius:99px;height:2px;transition:transform .2s;position:absolute;bottom:-8px;left:0;right:0;transform:scaleX(0)}.main-nav a:hover:after,.main-nav a:focus-visible:after{transform:scaleX(1)}.nav-cta{min-height:44px;padding:10px 18px;font-size:.88rem}.scroll-progress{z-index:60;background:var(--brand);pointer-events:none;transform-origin:0;height:3px;position:fixed;inset:0 0 auto;transform:scaleX(0)}@supports (animation-timeline:scroll()){.scroll-progress{animation:linear scroll-progress;animation-timeline:scroll(root)}}@keyframes scroll-progress{to{transform:scaleX(1)}}.hero{background:radial-gradient(circle at 12% 22%,#fff8b4d9,#0000 26%),radial-gradient(circle at 68% 76%,#ffcecaa6,#0000 27%),linear-gradient(112deg,#fffaf1 0%,#edf5fb 52%,#dae9f5 100%);min-height:660px;padding:58px 0 70px;position:relative}.hero:before,.hero:after{content:"";pointer-events:none;border:3px solid #5699c9d1;border-radius:50%;position:absolute}.hero:before{width:18px;height:18px;top:22%;left:48%}.hero:after{border-color:#ffad45cc;width:34px;height:34px;bottom:22%;right:4%}.hero-grid{grid-template-columns:minmax(0,.92fr) minmax(420px,1.08fr);align-items:center;gap:54px;display:grid}.hero-copy{z-index:2;position:relative}.hero h1{max-width:650px;margin-bottom:22px;font-size:clamp(3.2rem,6vw,5.3rem)}.hero h1 span{color:var(--brand)}.hero .lead{white-space:pre-line;max-width:610px;font-size:1.13rem}.hero-media{align-self:end;min-width:0;position:relative}.hero-media img{object-fit:cover;object-position:center 42%;width:100%;height:540px;box-shadow:var(--shadow);border-radius:28px}.stats{z-index:5;background:#fff;padding:0 0 44px;position:relative}.trust{grid-template-columns:repeat(4,1fr);gap:18px;margin-top:-36px;display:grid}.trust>div{border:1px solid var(--line);border-radius:var(--radius);min-height:112px;box-shadow:var(--shadow-soft);background:#fff;grid-template-columns:auto 1fr;align-items:center;gap:14px;padding:22px;display:grid}.trust>div:first-child b{background:var(--pastel-peach)}.trust>div:nth-child(2) b{background:var(--brand-soft)}.trust>div:nth-child(3) b{background:var(--pastel-mint)}.trust>div:nth-child(4) b{background:var(--pastel-yellow)}.trust b{width:54px;height:54px;color:var(--ink);border-radius:14px;place-items:center;font-size:1.15rem;line-height:1;display:grid}.trust small{color:var(--ink2);font-size:.86rem;line-height:1.45}.grid2{grid-template-columns:1fr 1fr;gap:24px;display:grid}.proof-gallery{grid-template-columns:repeat(3,minmax(0,1fr));align-items:stretch;gap:24px;display:grid}.proof-item{border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-soft);background:#fff;flex-direction:column;display:flex;overflow:hidden}.proof-item img{object-fit:contain;background:#fff;width:100%;height:600px}.proof-item figcaption{color:var(--ink2);margin-top:auto;padding:14px 16px;font-size:.88rem;font-weight:700}.course-list{gap:18px;display:grid}.course-row{border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-soft);background:#fff;grid-template-columns:190px minmax(0,1fr) 170px;align-items:center;gap:28px;padding:26px;display:grid}.course-summary .tag{border-radius:8px;margin-bottom:12px;padding:6px 10px;font-size:.7rem;font-weight:800;display:inline-flex}.course-summary h3{margin-bottom:4px;font-size:1.6rem}.course-summary .course-level{display:block}.course-facts{grid-template-columns:1fr 1fr;gap:16px 24px;display:grid}.course-facts div{min-width:0}.course-facts dt{color:var(--muted);font-size:.78rem}.course-facts dd{color:var(--ink);font-size:.92rem;font-weight:700}.course-cost{color:var(--brand-dark);text-align:right;flex-wrap:wrap;justify-content:flex-end;align-items:baseline;display:flex}.course-cost strong{font-size:1.55rem;line-height:1.1}.course-cost span{font-size:.78rem}.course-cost small{width:100%;color:var(--muted);margin-top:5px;font-size:.76rem}.course-benefits{border-top:1px solid var(--line);grid-column:1/-1;gap:8px;padding-top:18px;display:grid}.course-benefits p{color:var(--ink2);font-size:.94rem}.course-benefits p:before{color:var(--brand);content:"✓";margin-right:8px;font-weight:900}.course-validity{color:var(--ink2);margin-top:18px;font-size:.95rem;font-style:italic}.course-includes{margin-top:42px}.course-includes h3{margin-bottom:20px;font-size:1.5rem}.benefits-compact{border-top:1px solid var(--line);grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.benefits-compact>div{border-bottom:1px solid var(--line);padding:20px 24px 20px 0}.benefits-compact>div:nth-child(2n){border-left:1px solid var(--line);padding-left:24px}.benefits-compact b,.benefits-compact span{display:block}.benefits-compact b{color:var(--ink);margin-bottom:6px;font-size:1.02rem}.benefits-compact span{color:var(--ink2);font-size:.92rem}.grid3{grid-template-columns:1.2fr .9fr .9fr;gap:20px;display:grid}.card{border:1px solid var(--line);border-radius:var(--radius);background:var(--card);box-shadow:var(--shadow-soft);padding:28px;transition:transform .25s,box-shadow .25s,border-color .25s}.card:hover{box-shadow:var(--shadow);border-color:#bfd8ea;transform:translateY(-5px)}.card h3{margin-bottom:10px;font-size:1.45rem}.course-level{color:var(--muted);letter-spacing:0;font-size:.94rem;font-weight:600}.profile-icon{background:var(--brand-soft);border-radius:14px;place-items:center;width:54px;height:54px;margin:0 auto 14px;font-size:1.45rem;display:grid}.profile-meta{margin-top:6px;font-size:.92rem}.cls{position:relative;overflow:hidden}.cls .tag{border-radius:8px;margin-bottom:18px;padding:7px 12px;font-size:.72rem;font-weight:800;display:inline-flex}.tag-open{color:var(--brand-dark);background:var(--brand-soft)}.tag-soon{color:#7b6223;background:var(--pastel-yellow)}.cls table{border-collapse:collapse;width:100%;margin-top:14px}.cls td{border-bottom:1px solid var(--line);color:var(--ink2);vertical-align:top;padding:10px 0;font-size:1rem}.cls td:first-child{width:38%;color:var(--muted)}.cls td:last-child{color:var(--ink);font-weight:650}.price{color:var(--brand-dark);margin-top:22px;font-size:1.75rem;font-weight:850}.price small{color:var(--muted);font-size:.78rem;font-weight:500}.strip{color:var(--ink2);background:var(--accent-soft);border:1px solid #b9d5e8;border-radius:14px;margin-top:22px;padding:20px 22px}.strip b{color:var(--brand-dark)}.referral-offer h3{max-width:780px;color:var(--brand-dark);letter-spacing:-.015em;font-size:1.15rem}.referral-note{max-width:820px;margin-top:8px;font-size:.94rem;font-style:italic;line-height:1.55}.referral-levels{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:18px;display:grid}.referral-levels p{color:var(--ink);background:#ffffffb8;border:1px solid #004aad24;border-radius:10px;padding:12px 14px}.referral-levels strong{color:var(--brand-dark)}.honest{border:1px solid var(--line);border-radius:var(--radius);background:var(--card);box-shadow:var(--shadow-soft);overflow:hidden}.honest .row{border-bottom:1px solid var(--line);grid-template-columns:1fr auto;align-items:center;gap:18px;padding:16px 22px;display:grid}.honest .row:last-child{border-bottom:none}.honest .goal{color:var(--ink);font-weight:650}.honest .verdict{white-space:nowrap;border-radius:8px;padding:6px 11px;font-size:.82rem;font-weight:800}.no{color:var(--danger);background:var(--danger-soft)}.yes{color:var(--success);background:var(--success-soft)}.teacher{grid-template-columns:minmax(0,1.25fr) minmax(280px,.75fr);align-items:stretch;gap:28px;max-width:1080px;display:grid}.teacher-proof-link{margin-top:20px}.teacher-photo{border-radius:var(--radius);background:var(--brand-soft);min-height:420px;box-shadow:var(--shadow-soft);overflow:hidden}.teacher-photo img{object-fit:cover;object-position:center 38%;width:100%;height:100%}.creds{gap:8px;list-style:none;display:grid}.creds li{color:var(--ink2);background:#f7fbfe;border-radius:12px;padding:11px 12px 11px 42px;font-size:1.02rem;position:relative}.creds li:before{color:#fff;background:var(--brand);content:"✓";border-radius:50%;place-items:center;width:20px;height:20px;font-size:.68rem;font-weight:900;display:grid;position:absolute;top:12px;left:14px}.creds li b,.benefit b{color:var(--ink)}.benefit b{margin-bottom:4px;font-size:1.12rem;line-height:1.4;display:block}.benefit span{font-size:1rem;line-height:1.65;display:block}.benefit{border-bottom:1px solid var(--line);color:var(--ink2);grid-template-columns:auto 1fr;align-items:start;gap:16px;padding:18px 0;display:grid}.benefit:last-child{border-bottom:none}.bnum{width:48px;height:48px;color:var(--brand-dark);background:var(--brand-soft);border-radius:14px;place-items:center;font-size:1.18rem;font-weight:800;display:grid}.ladder{grid-template-columns:repeat(4,1fr);gap:14px;display:grid}.step{border:1px solid var(--line);border-radius:var(--radius);min-height:185px;box-shadow:var(--shadow-soft);background:#fff;flex-direction:column;align-items:flex-start;gap:10px;padding:24px;display:flex}.step .lv{color:var(--brand-dark);font-size:1.15rem;font-weight:850}.step .arrow{min-height:48px;color:var(--muted);font-size:.95rem}.step .st{border-radius:8px;margin-top:auto;padding:6px 10px;font-size:.72rem;font-weight:800}.step.cur{background:var(--brand);border-color:#7db4d9}.step.cur .lv,.step.cur .arrow{color:#fff}.step .st-current{color:var(--brand-dark);background:#fff}.ph{border-radius:var(--radius);color:var(--brand-dark);background:var(--brand-soft);text-align:center;border:2px dashed #80b3d7;padding:24px;font-size:.98rem}.ph b{color:var(--brand-dark);letter-spacing:.06em;text-transform:uppercase;margin-bottom:5px;font-size:.76rem;display:block}.ph-spaced{margin-top:18px}.ph-large-gap{margin-top:24px}.align-left{text-align:left}.testi-grid{grid-template-columns:1fr 1fr;gap:20px;display:grid}.student-feature-grid{grid-template-columns:minmax(280px,.55fr) minmax(0,1fr);align-items:center;gap:24px;margin-top:32px;display:grid}.student-proof{aspect-ratio:1;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-soft);background:#fff;display:grid;overflow:hidden}.student-proof-video{aspect-ratio:9/16;position:relative}.student-proof img{object-fit:contain;width:100%;height:100%}.student-proof video{object-fit:contain;background:var(--ink);width:100%;height:100%;display:block}.testimonial-video-cover{z-index:2;color:#fff;background:var(--ink);cursor:pointer;opacity:1;border:0;transition:opacity .6s cubic-bezier(.16,1,.3,1),visibility;position:absolute;inset:0;overflow:hidden}.testimonial-video-cover img{object-fit:cover;width:100%;height:100%}.testimonial-video-cover:after{content:"";background:linear-gradient(#0000,#031e3780);height:28%;position:absolute;inset:auto 0 0}.testimonial-video-cover span{z-index:1;background:#004aadeb;border:1px solid #ffffffb3;border-radius:999px;min-width:132px;padding:12px 18px;font-weight:800;transition:transform .2s,background-color .2s;position:absolute;bottom:24px;left:50%;transform:translate(-50%);box-shadow:0 12px 36px #00245447}.testimonial-video-cover:hover span,.testimonial-video-cover:focus-visible span{background:var(--brand);transform:translate(-50%)translateY(-2px)}.testimonial-video-cover:focus-visible{outline-offset:-5px;outline:3px solid #fff}.testimonial-video-cover.is-hidden{visibility:hidden;pointer-events:none;opacity:0;transition:opacity .6s cubic-bezier(.16,1,.3,1),visibility 0s .6s}.testimonial-carousel{outline:none;margin-top:clamp(40px,6vw,72px);position:relative}.testimonial-carousel:focus-visible{outline-offset:8px;outline:3px solid #004aad40}.testimonial-carousel-viewport{touch-action:pan-y;padding:0 1px;overflow:hidden}.testimonial-carousel-slide{animation:.48s cubic-bezier(.16,1,.3,1) 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.student-story-preview{order:1;font-size:clamp(1.28rem,2.1vw,1.75rem);line-height:1.48}.student-review-slide-content .student-story-trigger{order:3}.testimonial-proof-pair{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;height:clamp(480px,47vw,590px);display:grid}.testimonial-proof-pair figure{border:1px solid var(--line);border-radius:var(--radius);background:var(--soft);box-shadow:var(--shadow-soft);overflow:hidden}.testimonial-proof-pair img{object-fit:contain;width:100%;height:100%;display:block}.testimonial-carousel-nav{margin-top:24px}.testimonial-carousel-nav>button{z-index:3;border:1px solid var(--brand);width:48px;height:48px;color:var(--brand);font:inherit;cursor:pointer;background:#fff;border-radius:50%;place-items:center;font-size:1.25rem;font-weight:800;transition:color .2s,background-color .2s,transform .2s;display:grid;position:absolute;top:50%;transform:translateY(-50%)}.testimonial-carousel-nav>button:first-child{left:-24px}.testimonial-carousel-nav>button:last-child{right:-24px}.testimonial-carousel-nav>button:hover,.testimonial-carousel-nav>button:focus-visible{color:#fff;background:var(--brand);outline:none}.testimonial-carousel-nav>button:active{transform:translateY(-50%)scale(.96)}.testimonial-carousel-dots{justify-content:center;align-items:center;gap:8px;min-height:48px;display:flex}.testimonial-carousel-dots button{cursor:pointer;background:#b8cce5;border:0;border-radius:50%;width:8px;height:8px;padding:0;transition:width .2s,background-color .2s}.testimonial-carousel-dots button.is-active{background:var(--brand);border-radius:999px;width:24px}.testimonial-carousel-dots span{color:var(--ink2);margin-left:4px;font-size:.85rem;font-weight:700}@keyframes testimonial-slide-in{0%{opacity:0;transform:translate(18px)}to{opacity:1;transform:translate(0)}}.student-story{border:1px solid var(--line);border-radius:var(--radius);max-width:920px;box-shadow:var(--shadow-soft);background:#fff;padding:clamp(24px,4vw,40px)}.student-story-featured{max-width:none}.student-story-header{margin-bottom:22px}.student-story-header h3{margin-bottom:5px;font-size:clamp(1.35rem,2vw,1.65rem)}.student-story-header p{color:var(--ink2);font-size:.98rem}.student-story-copy{color:var(--ink2);gap:16px;font-size:1.06rem;line-height:1.78;display:grid}.student-story-preview{color:var(--ink);font-size:clamp(1.08rem,1.5vw,1.25rem);font-style:italic;font-weight:800;line-height:1.7}.student-story-trigger{border:1px solid var(--brand);width:fit-content;color:var(--brand);cursor:pointer;background:#fff;border-radius:10px;margin-top:20px;padding:10px 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