:root{--paper:#f6f5f0;--ink:#202c26;--muted:#60695f;--green:#255d42;--line:#d8ddd2;--soft:#e8ecdf}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button,a,input,textarea,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #b16b28;outline-offset:5px}.wrap{width:min(1160px,calc(100% - 64px));margin-inline:auto}.skip{position:absolute;left:20px;top:-100px;padding:12px;background:white;z-index:10}.skip:focus{top:12px}header{border-bottom:1px solid var(--line);background:var(--paper)}.nav{display:flex;align-items:center;gap:40px;min-height:96px}.brand{font-size:25px;letter-spacing:-1.5px;font-weight:800}.brand span,.green{color:var(--green)}nav{display:flex;gap:30px;margin-left:auto;font-size:14px}nav a:hover,.text-link:hover{text-decoration:underline;text-underline-offset:6px}.button{display:inline-flex;align-items:center;justify-content:center;gap:28px;background:var(--green);color:#fff;padding:15px 22px;border:1px solid var(--green);border-radius:5px;font-size:14px;font-weight:600;cursor:pointer;min-height:48px}.button:hover{background:#17492f}.button.small{padding:10px 18px}.hero{padding-block:85px 80px;display:grid;grid-template-columns:1.2fr 1fr;align-items:center;gap:65px}.eyebrow{font-size:11px;font-weight:700;letter-spacing:1.7px;text-transform:uppercase;margin:0 0 24px}.dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--green);margin-right:7px}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(48px,5.5vw,76px);letter-spacing:-4px;line-height:1.06;font-weight:500;margin-bottom:28px}h2{font-size:clamp(34px,3.8vw,49px);line-height:1.14;letter-spacing:-2px;font-weight:500;margin-bottom:22px}h3{font-size:21px;letter-spacing:-.5px;line-height:1.3;margin-bottom:14px}.intro{font-size:17px;max-width:480px;color:var(--muted);line-height:1.8}.actions{display:flex;align-items:center;gap:25px;flex-wrap:wrap;margin-top:29px}.text-link{font-size:14px}.hero-note{font-size:12px;color:var(--muted);margin-top:25px;margin-bottom:0}.hero-art{background:#e5eadc;border:1px solid #d4ddca;border-radius:10px;padding:25px;min-width:0;transform:rotate(1deg)}.art-top,.art-bottom{display:flex;align-items:center;justify-content:space-between;gap:10px}.art-top{font-size:9px;letter-spacing:1.4px}.mock{margin:30px 0;background:#fcfbf6;box-shadow:0 18px 30px #293c2014;transform:rotate(-3deg);border:1px solid #d7dece;border-radius:5px;overflow:hidden}.mock-nav{padding:16px;display:flex;justify-content:space-between;font-size:8px;border-bottom:1px solid var(--line)}.mock-nav b{font-size:12px}.mock-body{position:relative;padding:30px 20px;overflow:hidden;min-height:230px}.mock-label{font-size:6px;letter-spacing:1px}.mock-body p{position:relative;z-index:1;font-family:Georgia,serif;font-size:32px;line-height:1.05;margin:14px 0}.mock-body em{color:var(--green);font-weight:400}.mock-lines i{display:block;width:44%;height:3px;background:#d6dccf;margin:6px 0}.mock-lines i+ i{width:33%}.mock-button{display:inline-block;font-size:7px;padding:8px 12px;background:var(--green);color:white;margin-top:12px}.mock-shape{position:absolute;right:-24px;bottom:-50px;width:145px;height:220px;border-radius:100px 100px 0 0;background:repeating-linear-gradient(90deg,#9dad8e 0,#9dad8e 7px,#b6c2a8 8px,#b6c2a8 13px);transform:rotate(24deg)}.mock-bottom{display:flex;justify-content:space-between;padding:13px 16px;border-top:1px solid var(--line);font-size:8px}.art-bottom{font-size:11px;line-height:1.5}.round-arrow{font-size:26px;border:1px solid #aebda2;border-radius:50%;width:45px;height:45px;display:grid;place-items:center}.principles{border-block:1px solid var(--line)}.principles .wrap{display:flex;justify-content:space-between;padding-block:21px;font-size:13px;color:var(--muted)}.principles span:before{content:'✳';color:var(--green);margin-right:13px}.section{padding-block:85px}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:35px}.section-head>p{max-width:330px;color:var(--muted);font-size:15px}.services{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}.services article{padding:28px 22px;border-right:1px solid var(--line)}.services article:first-child{padding-left:0}.services article:last-child{border:0}.number{display:block;color:var(--green);font-size:12px;margin-bottom:30px}.services p,.steps p{font-size:14px;color:var(--muted)}.tag{font-size:10px;color:var(--green)}.deliverables{background:var(--ink);color:var(--paper);padding-block:65px}.deliver-grid{display:grid;grid-template-columns:1fr 1fr;gap:100px}.deliver-grid>div>p:not(.eyebrow){color:#c1c9be;max-width:350px;font-size:15px}.deliverables .eyebrow{color:#c8d6b9}.delivery-list article{display:flex;gap:22px;padding:22px 0;border-bottom:1px solid #4b584e}.delivery-list article:first-child{padding-top:0}.delivery-list h3{font-size:18px;margin-bottom:9px}.delivery-list p{color:#c1c9be;font-size:14px;margin:0}.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:30px}.steps li{border-top:1px solid var(--line);padding-top:24px}.steps span{font-size:11px;color:var(--green);display:block;margin-bottom:22px}.steps h3{font-size:18px}.faq-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:80px;border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line)}summary{cursor:pointer;list-style:none;padding:20px 30px 20px 0;position:relative;font-size:16px}summary::-webkit-details-marker{display:none}summary:after{content:'+';position:absolute;right:3px}details[open] summary:after{content:'−'}.faq p{font-size:14px;color:var(--muted);padding-right:25px}.contact{background:var(--soft);border-radius:9px;padding:50px;display:grid;grid-template-columns:1fr 1fr;gap:65px;margin-bottom:65px}.contact h2{font-size:40px}.contact p{font-size:14px;color:var(--muted)}.contact-note{margin-top:25px;font-size:12px!important}label{display:block;font-size:13px;margin-bottom:8px;font-weight:600}label span{font-weight:400}textarea,input{display:block;width:100%;background:#fafbf6;border:1px solid #aebba7;border-radius:4px;padding:13px;color:var(--ink);margin-bottom:17px;font-size:14px}textarea{resize:vertical}::placeholder{color:#667060;opacity:1}.form-note{font-size:11px!important;margin:12px 0 0}#brief-status{margin-top:10px;margin-bottom:0;color:var(--green)}footer{display:flex;align-items:center;gap:35px;padding-bottom:32px}footer p{margin:0;color:var(--muted);font-size:12px}footer>span{margin-left:auto;font-size:11px;color:var(--muted)}[hidden]{display:none!important}@media(min-width:1500px){.hero{padding-block:100px}}@media(max-width:950px){.hero{gap:30px}h1{letter-spacing:-2.5px}.hero-art{padding:18px}.mock-body p{font-size:26px}.services{grid-template-columns:1fr 1fr}.services article{padding:25px!important;border-bottom:1px solid var(--line)}.services article:nth-child(even){border-right:0}.deliver-grid,.faq-grid{gap:40px}.contact{padding:32px;gap:35px}.steps{grid-template-columns:1fr 1fr}}@media(max-width:680px){.wrap{width:calc(100% - 36px)}.nav{gap:15px;min-height:80px;flex-wrap:wrap;padding-block:16px}.brand{font-size:23px}.nav>.button{margin-left:auto;font-size:12px}nav{order:3;width:100%;margin:0;justify-content:space-between;gap:10px}nav a{padding:7px 0}.hero{grid-template-columns:1fr;padding-block:45px;gap:40px}h1{font-size:51px;letter-spacing:-2.8px}.intro{font-size:16px}.hero-art{max-width:430px;width:100%;justify-self:center;padding:24px}.mock-body p{font-size:32px}.principles .wrap{gap:12px;flex-wrap:wrap;font-size:11px;justify-content:flex-start}.section{padding-block:50px}.section-head{display:block}.section-head>p{max-width:none}.services{grid-template-columns:1fr}.services article{padding:25px 0!important;border-right:0}.number{margin-bottom:12px}.deliver-grid,.faq-grid,.contact{grid-template-columns:1fr;gap:28px}.deliverables{padding-block:45px}.steps{gap:24px}.contact{padding:28px 22px;margin-bottom:40px}.contact h2{font-size:34px}footer{flex-wrap:wrap;gap:12px}footer .brand{width:100%}footer>span{margin-left:0}.eyebrow{font-size:10px;letter-spacing:1.3px}.actions{gap:20px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Thanh Dan identity */
.brand{display:inline-flex;align-items:center;flex-shrink:0;line-height:1}.brand img{display:block;width:194px;height:auto}footer .brand img{width:176px}@media(max-width:680px){.nav .brand img{width:160px}.nav{column-gap:10px}.nav>.button{gap:12px;padding-inline:12px}}
