:root{--ink:#23392e;--paper:#f7f6ef;--lime:#d9f57c;--line:#d8ddd1}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--paper);color:var(--ink);font-family:'Be Vietnam Pro',sans-serif;font-size:14px;line-height:1.7}button,input,select,textarea{font:inherit}a{color:inherit;text-decoration:none}button,a,input,select,textarea{outline-offset:5px}button{cursor:pointer}header{max-width:1400px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:24px 5%;border-bottom:1px solid var(--line);gap:20px}.logo{font-size:28px;font-weight:800;letter-spacing:-1.8px}.logo span{font-weight:400}.logo i{font-style:normal;color:#86a940;margin-left:8px}nav{display:flex;gap:30px;font-size:12px}.button{display:inline-flex;align-items:center;justify-content:center;gap:24px;padding:15px 22px;background:var(--ink);color:white;border:1px solid var(--ink);border-radius:6px;font-weight:600;font-size:12px}.button:hover{background:#385742}.small{padding:11px 16px}.hero{display:grid;grid-template-columns:1.1fr 1fr;gap:6%;align-items:center;padding:75px 6% 85px;max-width:1400px;margin:auto}.eyebrow{font-size:10px;letter-spacing:1.7px;font-weight:600}.hero h1{font-size:clamp(34px,3.8vw,58px);letter-spacing:-2.8px;line-height:1.22;font-weight:500;margin:25px 0}.hero em,.request em{font-style:normal;color:#718f40}.hero-copy>p:not(.eyebrow){max-width:440px;color:#637064}.actions{display:flex;gap:22px;align-items:center;flex-wrap:wrap;margin-top:28px}.text-link{font-size:11px;text-decoration:underline;text-underline-offset:5px}.hero-notes{display:flex;gap:22px;margin-top:26px;font-size:10px;color:#6c776a}.hero-art{position:relative;padding:45px 6px 25px}.orbit{position:absolute;inset:0;border:1px solid #d9dece;border-radius:50%;transform:rotate(-25deg)}.hero-deck{position:relative;background:var(--lime);padding:25px 29px;aspect-ratio:1.55;transform:rotate(-5deg);box-shadow:0 26px 45px #29452d18;overflow:hidden;border-radius:6px}.mini-top,.mini-bottom{display:flex;justify-content:space-between;font-size:8px;letter-spacing:1px;position:relative;z-index:1}.hero-deck h2{font-size:clamp(26px,3vw,45px);line-height:1.18;letter-spacing:-2px;position:relative;z-index:1;font-weight:600;margin:27px 0}.hero-deck h2 em{color:var(--ink);font-style:normal}.graphic-flower{position:absolute;font-size:240px;right:-25px;top:0;line-height:1.5;color:#a8ce55}.floating-label{position:absolute;right:15px;top:5px;z-index:2;font-size:9px;letter-spacing:1px;border:1px solid var(--ink);padding:9px;background:var(--paper);transform:rotate(5deg)}.under-card{position:relative;display:flex;justify-content:space-between;gap:14px;background:white;border:1px solid var(--line);padding:17px 24px;font-size:11px;margin:7px 10px 0;transform:rotate(3deg);box-shadow:0 15px 30px #29452d09}.art-note{display:block;font-size:7px;letter-spacing:1px;text-align:center;margin-top:30px}.ticker{padding:20px 5%;background:var(--ink);color:#eaf0df;font-size:10px;letter-spacing:1.5px;display:flex;justify-content:space-around;gap:20px;overflow:hidden;white-space:nowrap}.ticker b{color:var(--lime)}section:not(.hero){padding:75px 6%;max-width:1400px;margin:auto}.section-head{display:flex;justify-content:space-between;gap:35px;align-items:flex-end;margin-bottom:30px}h2{font-size:clamp(26px,2.8vw,40px);font-weight:500;line-height:1.35;letter-spacing:-1.5px;margin:14px 0}.section-head>p{font-size:12px;color:#6c776a}.filters{display:flex;flex-wrap:wrap;gap:8px;margin:24px 0}.filters button{background:transparent;border:1px solid var(--line);padding:8px 15px;border-radius:30px;color:var(--ink);font-size:11px}.filters button.active{background:var(--ink);color:white;border-color:var(--ink)}.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:30px 22px}.sample{border:0;background:none;text-align:left;color:inherit;padding:0}.thumb{aspect-ratio:16/10;border-radius:8px;overflow:hidden;position:relative;transition:transform .2s}.sample:hover .thumb{transform:translateY(-5px)}.sample-meta{display:flex;justify-content:space-between;gap:8px;margin-top:13px;align-items:center}.sample h3{font-size:14px;margin:0}.sample small{font-size:10px;color:#6c776a}.sample .arrow{border:1px solid var(--line);border-radius:50%;padding:3px 11px}.muted{font-size:10px;color:#6a7568;line-height:1.8;margin-top:22px}.comparison{display:grid;grid-template-columns:1fr 1.3fr;gap:6%;background:#ebeee2}.comparison>div>p:not(.eyebrow){font-size:12px;color:#68745e}.compare-labels,.compare-pair{display:grid;grid-template-columns:1fr 1fr;gap:12px}.compare-labels{font-size:9px;letter-spacing:1px;margin-bottom:10px}.before,.after{min-height:240px;padding:22px;background:white;border:1px solid #d7dccd;border-radius:5px}.before{color:#64708a;font-family:Arial,sans-serif}.before h4{font-size:15px;text-decoration:underline}.before p{font-size:11px;line-height:1.8}.after{background:var(--ink);color:#f7f6ef}.after h4{font-size:21px;line-height:1.35;margin:15px 0}.after p{font-size:10px;border-top:1px solid #ffffff30;padding-top:10px}.after b{color:var(--lime);font-size:30px}.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.pricing article{padding:28px;border:1px solid var(--line);border-radius:8px;background:#fffefa}.pricing article.featured{background:var(--ink);color:white;border-color:var(--ink)}.package-no{font-size:9px;letter-spacing:1px}.pricing h3{font-size:21px;letter-spacing:-.8px;font-weight:500}.price{font-size:27px;letter-spacing:-1px}.price small{font-size:10px;letter-spacing:0}.pricing p,.pricing li{font-size:11px}.pricing ul{list-style:none;padding:12px 0;min-height:132px}.pricing li{padding:6px 0}.pricing li:before{content:'✓';margin-right:10px;color:#8ca84e}.pricing button{width:100%;padding:12px;border:1px solid var(--line);border-radius:5px;color:inherit;background:transparent}.featured button{background:var(--lime);color:var(--ink);border-color:var(--lime)}.process{border-top:1px solid var(--line)}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;margin-top:35px}.steps b{font-size:12px;border:1px solid var(--line);padding:10px;border-radius:50%}.steps h3{font-size:15px;margin-top:25px}.steps p{font-size:12px;color:#6a7568}.request{background:#e9eddf;display:grid;grid-template-columns:1fr 1.1fr;gap:10%}.request h2{font-size:48px}.request>div>p:not(.eyebrow){font-size:13px;max-width:310px}.contact-state{font-size:11px;padding:15px;border-left:2px solid #8b9b6b;margin-top:28px}label{display:block;font-size:11px;margin-bottom:16px}input,select,textarea{display:block;width:100%;padding:12px;border:1px solid #cdd5c0;background:#fffefa;color:var(--ink);border-radius:5px;margin-top:7px;font-size:12px}textarea{resize:vertical}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:15px}#brief .button{width:100%}#brief-result{margin-top:20px}#copy{padding:12px;background:white;border:1px solid var(--line);border-radius:5px}.faq{max-width:900px!important}.faq h2{font-size:28px}details{padding:18px 0;border-bottom:1px solid var(--line);font-size:12px}summary{cursor:pointer}details p{color:#637064}footer{display:flex;align-items:center;justify-content:space-between;padding:30px 6%;border-top:1px solid var(--line);gap:20px}footer p,footer>span{font-size:10px}dialog{border:0;border-radius:12px;padding:25px;width:min(1000px,94vw);max-height:94vh;overflow:auto;background:var(--paper);color:var(--ink)}dialog::backdrop{background:#14251de0}.viewer-head{display:flex;justify-content:space-between;align-items:center}.viewer-head h3{margin:5px 0 18px}.viewer-head button,.viewer-controls>button:not(.button){background:transparent;border:1px solid var(--line);border-radius:5px;padding:8px 14px;color:var(--ink)}.viewer-controls{display:flex;gap:12px;align-items:center;margin-top:18px;flex-wrap:wrap}.viewer-controls .button{margin-left:auto}.viewer-controls span{font-size:12px}.slide{aspect-ratio:16/9;overflow:hidden;border-radius:6px;container-type:inline-size}.deck-inner{width:100%;height:100%;position:relative;padding:7%;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between}.deck-top,.deck-bottom{font-size:1.3cqw;letter-spacing:.12em;display:flex;justify-content:space-between;z-index:1}.deck-inner h3{font-size:6.4cqw;letter-spacing:-.045em;line-height:1.17;margin:0;max-width:80%;z-index:1;font-weight:600}.deck-subtitle{font-size:1.8cqw;max-width:72%;z-index:1}.deck-shape{position:absolute;right:-2%;top:12%;font-size:35cqw;line-height:1;opacity:.27}.deck-columns{display:grid;grid-template-columns:repeat(3,1fr);gap:4%;z-index:1}.deck-col{border-top:1px solid currentColor;padding-top:5%;font-size:1.7cqw}.deck-col b{display:block;font-size:3cqw;margin-bottom:7%}.deck-bars{display:flex;align-items:flex-end;height:36%;gap:6%;z-index:1}.deck-bar{background:currentColor;min-width:15%;opacity:.75;position:relative}.deck-bar span{position:absolute;bottom:100%;font-size:1.6cqw;padding-bottom:5px}.thumb{container-type:inline-size}.thumb .deck-inner{padding:8%}.thumb .deck-inner h3{font-size:7.5cqw}.thumb .deck-top,.thumb .deck-bottom{font-size:1.6cqw}.thumb .deck-subtitle{font-size:2.4cqw}button:disabled{opacity:.4;cursor:default}[hidden]{display:none!important}@media(max-width:900px){nav{gap:15px}.hero{gap:4%;padding-top:45px}.hero h1{letter-spacing:-1.5px}.gallery{grid-template-columns:repeat(2,1fr)}.comparison{grid-template-columns:1fr}.pricing article{padding:20px}.price{font-size:23px}.request{gap:6%}.under-card{font-size:9px}.hero-notes{gap:12px;font-size:9px}.actions{gap:16px}.hero-deck h2{margin:22px 0}}@media(max-width:600px){header{padding:16px 5%}nav{display:none}.logo{font-size:24px}.small{font-size:9px;padding:10px}.hero{grid-template-columns:1fr;padding:35px 6%}.hero h1{font-size:39px}.hero-copy>p:not(.eyebrow){font-size:12px}.hero-art{margin-top:25px}.hero-deck h2{font-size:37px}.graphic-flower{font-size:230px}.hero-notes{font-size:9px}.ticker{justify-content:flex-start}section:not(.hero){padding:48px 6%}.section-head{display:block}.section-head>p{font-size:11px}.gallery{gap:24px 12px}.sample h3{font-size:11px}.sample small{font-size:8px}.sample .arrow{display:none}.pricing,.steps,.request{grid-template-columns:1fr}.pricing ul{min-height:0}.steps{gap:22px}.steps h3{margin-top:18px}.request{gap:30px}.request h2{font-size:38px}.before,.after{padding:15px;min-height:220px}.after h4{font-size:18px}footer{flex-wrap:wrap}footer>span{width:100%}.viewer-controls{gap:8px}.viewer-controls .button{width:100%;margin:0}.viewer-controls>button:not(.button){padding:7px 10px}dialog{padding:16px}.viewer-head h3{font-size:14px}.eyebrow{font-size:9px}}

.zalo-card{margin-top:20px;display:flex;align-items:center;gap:18px}.zalo-card img{width:150px;height:auto;border-radius:12px;border:1px solid var(--line)}.zalo-card strong{font-size:12px}.zalo-card p,.zalo-card a{font-size:11px}.zalo-card a{text-decoration:underline;text-underline-offset:4px}@media(max-width:600px){.zalo-card img{width:140px}.zalo-card{gap:14px}}

/* Launch QA: legibility, touch targets, full-screen viewer, reduced motion. */
.quick-zalo{position:fixed;bottom:20px;right:20px;background:var(--ink);color:white;border:1px solid #d9f57c66;border-radius:30px;padding:12px 20px;font-size:13px;box-shadow:0 5px 25px #23392e25;z-index:5}
footer{padding-bottom:90px}.noscript{padding:15px 6%;background:#d9f57c}
.filters button{min-height:42px}.viewer-head button,.viewer-controls>button{min-height:44px;min-width:44px}
label{font-size:13px}input,select,textarea{font-size:16px}.muted{font-size:12px}.pricing p,.pricing li{font-size:13px}.pricing ul{min-height:150px}.faq details{font-size:14px}.contact-state,.zalo-card p,.zalo-card a{font-size:13px}.zalo-card img{width:180px}.sample small{font-size:11px}.section-head>p{font-size:13px}
.slide:fullscreen{border-radius:0;width:100vw;height:100vh;aspect-ratio:auto;background:#14251d;display:flex;align-items:center;justify-content:center}.slide:fullscreen .deck-inner{width:min(100vw,177.777vh);height:min(56.25vw,100vh);flex-shrink:0}
@media(max-width:600px){body{font-size:15px}.gallery{grid-template-columns:1fr}.sample h3{font-size:15px}.sample small{font-size:12px}.sample .arrow{display:block}.hero-copy>p:not(.eyebrow),.request>div>p:not(.eyebrow){font-size:14px}.request h2{font-size:36px}.form-row{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}input,select,textarea{min-width:0}.zalo-card{align-items:flex-start}.zalo-card img{width:140px;flex-shrink:0}.zalo-card>div{min-width:0}.steps p{font-size:14px}.compare-pair{grid-template-columns:1fr}.compare-labels{display:none}.before:before{content:'ĐẦU VÀO';font-size:10px}.after:before{content:'SAU KHI XỬ LÝ';font-size:10px}.before p,.after p{font-size:13px}.section-head>p{font-size:13px}.hero-notes{flex-wrap:wrap;font-size:11px}.button{font-size:13px}.quick-zalo{bottom:14px;right:14px}.viewer-controls{justify-content:center}.viewer-head h3{font-size:16px}.viewer-controls .button{margin-top:6px}.thumb .deck-top,.thumb .deck-bottom{font-size:1.8cqw}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}

#zalo-contact{scroll-margin-top:30px}.zalo-card>a{flex-shrink:0}.zalo-card img{cursor:zoom-in}.zalo-card:target{outline:2px solid #8ca84e;outline-offset:10px;border-radius:6px}

/* Acceptance: keep decoration inside the page and preserve keyboard access. */
.hero-art{overflow:clip}.ticker{max-width:100%}body:has(dialog[open]){overflow:hidden}
.skip-link{position:fixed;left:16px;top:-100px;z-index:30;background:var(--ink);color:white;padding:12px 18px;border-radius:5px}.skip-link:focus{top:12px}
:focus-visible{outline:3px solid #718b3b;outline-offset:4px}
#transcript{font-size:14px;border-top:1px solid var(--line);margin-top:18px;padding-top:12px}#transcript summary{min-height:44px;display:flex;align-items:center;font-weight:600}#slide-text{white-space:pre-line;padding:12px 0;color:#445440;line-height:1.85}#scope-note{padding:12px;border-left:3px solid #8ca84e;background:#f7f6ef;font-size:12px;margin:0 0 16px}
@media(max-width:600px){.hero h1{font-size:clamp(30px,10vw,39px)}header .small{max-width:57%;font-size:11px}.zalo-card{display:grid;grid-template-columns:130px minmax(0,1fr)}.zalo-card img{width:130px}.form-row{grid-template-columns:1fr}.viewer-controls{position:relative}.viewer-head h3{overflow-wrap:anywhere}dialog{max-height:94dvh;width:94vw;margin:auto}.viewer-controls .button{min-height:48px}.viewer-controls>button:not(.button){font-size:12px}.sample small{font-size:12px}.pricing ul{min-height:0}.hero-notes{gap:10px}.request{min-width:0}.section-head h2{overflow-wrap:anywhere}}
@media(max-width:350px){.zalo-card{grid-template-columns:1fr}.zalo-card img{width:190px}.viewer-controls{gap:6px}.viewer-controls>button:not(.button){padding:7px 9px}.hero-art{padding-left:0;padding-right:0}.hero-deck h2{font-size:29px}.under-card{padding:14px}}

.viewer-head{position:sticky;top:-1px;background:var(--paper);z-index:3;padding-top:4px}.viewer-head h3{margin-bottom:14px}#notes-help{display:block;font-size:11px;line-height:1.7;margin-top:6px;color:#52634e}
@media(max-width:1000px){.request{grid-template-columns:1fr;gap:36px}.request>div>p:not(.eyebrow){max-width:620px}.zalo-card{align-items:flex-start;max-width:650px}.zalo-card>div{flex:1}.request form{max-width:700px}}
@media(max-width:600px){.before:before,.after:before{display:block;margin-bottom:10px}body:has(#brief input:focus) .quick-zalo,body:has(#brief textarea:focus) .quick-zalo,body:has(#brief select:focus) .quick-zalo{visibility:hidden}}

dialog.expanded{width:100vw;max-width:100vw;height:100dvh;max-height:100dvh;border-radius:0;inset:0;margin:0;padding:24px}.expanded .slide{width:min(100%,calc((100dvh - 240px)*1.77778));margin-inline:auto}.expanded .viewer-controls{max-width:1000px;margin-inline:auto}.expanded #transcript,.expanded>p.muted{max-width:1000px;margin-inline:auto}@media(max-width:600px){dialog.expanded{padding:16px}.expanded .slide{width:100%}}

.qr-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.qr-actions button,#share-request{padding:11px 14px;min-height:44px;background:#fffefa;color:var(--ink);border:1px solid #a8b79b;border-radius:5px;font:inherit;font-size:12px;cursor:pointer}.device-help{font-size:12px;line-height:1.8}.device-help summary{min-height:44px;display:flex;align-items:center}.device-help p{font-size:12px}#qr-status:empty{display:none}#qr-status{font-size:12px}#share-request{width:100%}