:root{--ink:#151515;--ink-soft:#1a1a19;--paper:#f3f0e9;--paper-deep:#e9e7e0;--gold:#cbd85e;--gold-light:#cbd85e;--muted:#b8b6ae;--muted-dark:#6e6c65;--line:#f3f0e933;--line-light:#15151529;--white:#f3f0e9}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--ink);color:var(--paper);font:16px/1.7 'Be Vietnam Pro',sans-serif;overflow-x:hidden}body:before{content:'';position:fixed;inset:0;pointer-events:none;opacity:.035;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.7'/%3E%3C/svg%3E");z-index:20}a{color:inherit;text-decoration:none;transition:color .2s ease}a:hover{color:var(--gold-light)}.wrap{width:min(1240px,calc(100% - 56px));margin:auto}.bar{height:86px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);position:relative;z-index:2}.brand img{width:136px;height:auto;display:block;filter:none}.nav{display:flex;gap:29px;align-items:center;font:600 11px/1 'DM Sans',sans-serif;letter-spacing:.11em;text-transform:uppercase;color:#e6dfd4}.nav a{padding:10px 0}.nav .active,.nav a:hover{color:var(--gold-light)}.cta{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 20px;background:var(--gold);color:var(--ink);border:1px solid #ffffff45;border-radius:999px 999px 999px 14px;font:700 11px/1 'DM Sans',sans-serif;letter-spacing:.11em;text-transform:uppercase;box-shadow:0 10px 22px #00000032,inset 0 1px #ffffff70;transition:transform .18s,box-shadow .18s,background .18s}.cta:hover{color:var(--ink);background:var(--gold);transform:translateY(-2px);box-shadow:0 14px 28px #0000004a,inset 0 1px #ffffff85}.ghost{background:#0b0a08aa;color:var(--paper);border-color:#e9f28e80;box-shadow:inset 0 1px #ffffff18}.ghost:hover{color:var(--paper);background:#d1e85b20;border-color:var(--gold-light)}.hero{padding:112px 0 88px;display:grid;grid-template-columns:1fr .9fr;gap:64px;align-items:center;min-height:610px}.eyebrow,.kicker{font:700 10px/1 'DM Sans',sans-serif;letter-spacing:.22em;text-transform:uppercase;color:var(--gold-light)}h1,h2,h3,p{margin-top:0}h1,h2{font-family:'Cormorant Garamond',Georgia,serif;letter-spacing:-.045em;line-height:.94}h1{font-size:clamp(58px,7.8vw,104px);font-weight:600;margin:22px 0 29px;max-width:760px}h1 em,h2 em{font-weight:500;color:var(--gold-light)}h2{font-size:clamp(42px,5.4vw,72px);font-weight:600;margin:15px 0 24px}h3{font:600 22px/1.25 'Be Vietnam Pro',sans-serif;color:var(--white)}.lead{font-size:18px;line-height:1.75;color:#ddd3c5;max-width:620px}.muted{color:var(--muted);max-width:730px}.hero .muted{font-size:14px}.hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin:34px 0}.hero-image{position:relative;height:480px;overflow:hidden;background:#1b1712;border-radius:1.15rem 1.15rem 3.2rem;border:1px solid #d1e85b36;box-shadow:0 24px 60px #00000048}.hero-image img{width:100%;height:100%;object-fit:cover;filter:saturate(1.08) contrast(1.06) brightness(1.02)}.section{padding:98px 0;border-top:1px solid var(--line)}.section.light{background:var(--paper);color:var(--ink)}.section.light .lead,.section.light .muted{color:var(--muted-dark)}.section-head{display:flex;justify-content:space-between;align-items:end;gap:32px;margin-bottom:42px}.section-head>div{max-width:780px}.section-head .eyebrow{color:#71821d}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{padding:28px;border:1px solid #d1e85b25;background:linear-gradient(145deg,#1f1911f5,#100e0bfa);border-radius:1.15rem 1.15rem 2.3rem;min-height:220px;box-shadow:0 16px 36px #00000024;transition:border-color .22s,box-shadow .22s,transform .22s}.card:hover{border-color:#e9f28e80;transform:translateY(-4px);box-shadow:0 23px 42px #00000048}.light .card{background:#fffdf8;border-color:var(--line-light);box-shadow:0 12px 28px #4f3d2310}.card .num{font:700 10px/1 'DM Sans',sans-serif;letter-spacing:.16em;color:var(--gold-light);text-transform:uppercase}.light .card .num{color:#687719}.card h3{margin:25px 0 12px}.card p{color:#bfb5a6;margin:0;font-size:14px;line-height:1.7}.light .card p{color:#625c53}.logo-band{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;padding:28px 0}.wordmark{font:700 13px/1 'DM Sans',sans-serif;letter-spacing:.08em;color:#70685c;opacity:.84}.case-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:21px;padding-top:18px;border-top:1px solid #d1e85b30;color:#8f8678;font-size:11px}.case-meta b{display:block;color:var(--white);font-weight:600;margin-top:3px}.light .case-meta b{color:var(--ink)}.section-note{padding:19px 22px;border-left:2px solid var(--gold);background:#d1e85b0d;color:#c6bcad;font-size:13px}.steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}.step{padding:26px 20px 12px 0;border-right:1px solid var(--line)}.step:last-child{border:0}.step b{color:var(--gold-light);font:700 11px/1 'DM Sans',sans-serif;letter-spacing:.1em}.step h3{margin-top:16px}.formbox{background:#faf7f0;color:var(--ink);padding:38px;max-width:800px;border-radius:1rem 1rem 2.5rem;box-shadow:0 18px 44px #00000028}.fields{display:grid;grid-template-columns:1fr 1fr;gap:16px}.field{display:flex;flex-direction:column;gap:7px;font-size:12px;font-weight:700}.field.full{grid-column:1/-1}.field input,.field select,.field textarea{font:400 15px/1.5 'Be Vietnam Pro',sans-serif;padding:13px 14px;border:1px solid #d2c6b5;background:white;color:#191713;border-radius:10px}.field textarea{min-height:130px;resize:vertical}.field small{font-weight:400;color:#6a645c}.consent{display:flex;gap:10px;align-items:start;font-size:12px;margin:18px 0}.honey{position:absolute!important;left:-10000px!important;width:1px!important;height:1px!important;overflow:hidden!important}.footer{padding:46px 0 24px;border-top:1px solid var(--line)}.footer-top{display:flex;justify-content:space-between;gap:40px}.footer h2{font-size:36px;max-width:520px}.footer-links{display:flex;gap:20px;flex-wrap:wrap;color:#c8beaf;font:500 12px/1 'DM Sans',sans-serif;letter-spacing:.08em;text-transform:uppercase;margin:30px 0}.legal{border-top:1px solid var(--line);padding-top:21px;color:#a59c90;font-size:12px}.mobile{display:none}.badge{display:inline-block;border:1px solid #d1e85b70;border-radius:999px;padding:7px 12px;font:700 9px/1 'DM Sans',sans-serif;letter-spacing:.12em;text-transform:uppercase;color:#d4c5ae}.notice{margin-top:15px;font-size:13px;color:#555}.lead-table{width:100%;border-collapse:collapse;font-size:13px}.lead-table td,.lead-table th{padding:10px;border-bottom:1px solid #ddd;text-align:left;vertical-align:top}.admin{background:#f6f5ef;color:#171813;min-height:100vh;padding:40px;font-family:'Be Vietnam Pro',sans-serif}.adminbox{max-width:1200px;margin:auto}.pill{padding:3px 8px;background:#e6e5dd;font-size:11px}@media(max-width:850px){.wrap{width:min(100% - 34px,700px)}.bar{height:auto;min-height:70px;display:grid;grid-template-columns:1fr auto;gap:5px 12px;padding:10px 0}.nav{display:flex;grid-column:1/-1;grid-row:2;gap:20px;overflow-x:auto;white-space:nowrap;padding:10px 0 12px;font-size:10px;border-top:1px solid var(--line)}.mobile{display:block}.hero{padding:70px 0 58px;grid-template-columns:1fr;gap:28px;min-height:auto}.hero-image{height:340px}.section{padding:70px 0}.section-head{display:block}.section-head>.cta{margin-top:22px}.grid{grid-template-columns:1fr 1fr}.steps{grid-template-columns:1fr 1fr;gap:16px}.step{border-right:0;border-bottom:1px solid var(--line)}.footer-top{display:block}.footer-top>div+div{margin-top:40px}.fields{grid-template-columns:1fr}.field.full{grid-column:auto}}@media(max-width:540px){.grid{grid-template-columns:1fr}.hero-image{height:270px}.formbox{padding:23px}.footer h2{font-size:38px}.logo-band{justify-content:flex-start}.wordmark{width:calc(50% - 12px)}}
/* Brand-aligned reference gallery */
.reference-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:38px}.reference-item{margin:0;background:#171912;border:1px solid #d1e85b2b;border-radius:1rem 1rem 2rem;overflow:hidden;box-shadow:0 14px 32px #0000002b}.reference-item img{display:block;width:100%;height:220px;object-fit:cover;filter:saturate(1.08) contrast(1.06) brightness(1.02)}.reference-copy{padding:21px 22px 23px}.reference-copy .num{font:700 10px/1 'DM Sans',sans-serif;letter-spacing:.15em;color:#d1e85b;text-transform:uppercase}.reference-copy h3{font-size:19px;margin:13px 0 8px}.reference-copy p{font-size:13px;line-height:1.65;color:#c5c8b5;margin:0}.reference-note{margin:22px 0 0;color:#8f9780;font-size:12px}.light .reference-item{background:#fffdf8;border-color:#dedccf}.light .reference-copy h3{color:#171813}.light .reference-copy p,.light .reference-note{color:#625e52}@media(max-width:850px){.reference-gallery{grid-template-columns:1fr 1fr}}@media(max-width:540px){.reference-gallery{grid-template-columns:1fr}.reference-item img{height:230px}}

/* Homepage v3-inspired information architecture */
.header-actions{display:flex;align-items:center;gap:8px}.lang-switch{font:700 10px/1 'DM Sans',sans-serif;letter-spacing:.14em;color:#a8a092;text-transform:uppercase;padding:10px 2px}.lang-switch.active,.lang-switch:hover{color:var(--gold-light)}.lang-divider{color:#615c51;font-size:11px}.hero-v3{min-height:700px}.hero-copy{padding-right:10px}.hero-proof{display:flex;gap:15px;flex-wrap:wrap;margin-top:26px;color:#9c9487;font:700 9px/1 'DM Mono',monospace;letter-spacing:.12em;text-transform:uppercase}.hero-proof span:first-child{color:var(--gold-light);font-size:12px}.statement-grid,.proof-grid,.why-intro,.coverage-grid,.partner-grid{display:grid;grid-template-columns:1fr 1fr;gap:10%;align-items:end}.statement{font-size:18px;line-height:1.7;color:var(--muted-dark);max-width:560px}.text-link{font:700 11px/1 'DM Sans',sans-serif;letter-spacing:.1em;text-transform:uppercase;color:#5e6d18;border-bottom:1px solid #71821d66;padding-bottom:8px}.text-link:hover{color:#8ba51c}.capability-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.capability-card{min-height:320px;padding:26px 22px 28px 0;border-right:1px solid var(--line);display:flex;flex-direction:column}.capability-card:not(:first-child){padding-left:22px}.capability-card:last-child{border-right:0}.capability-card h3{margin:26px 0 13px;font-size:20px}.capability-card p{color:#bfb5a6;font-size:13px;line-height:1.7;margin:0 0 22px}.capability-card a{margin-top:auto;color:var(--gold-light);font:700 10px/1 'DM Sans',sans-serif;letter-spacing:.12em;text-transform:uppercase}.proof-grid{align-items:center}.proof-image{position:relative;min-height:490px;border-radius:1rem 1rem 2.6rem;overflow:hidden;background:#ddd6c8}.proof-image img{width:100%;height:100%;min-height:490px;object-fit:cover;filter:saturate(1.08) contrast(1.06) brightness(1.02)}.proof-copy{max-width:510px}.proof-copy h2{margin-bottom:30px}.proof-copy p{color:var(--muted-dark);font-size:16px;line-height:1.72}.cta.dark{background:var(--ink);color:var(--paper);border-color:#000}.cta.dark:hover{color:var(--gold-light);background:#26231d}.reference-list{border-top:1px solid var(--line);margin:52px 0 28px}.reference-list>div{display:grid;grid-template-columns:60px 1fr 1.4fr;align-items:center;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}.reference-list span{color:var(--gold-light);font:700 11px/1 'DM Mono',monospace}.reference-list strong{font:600 21px/1.2 'Be Vietnam Pro',sans-serif}.reference-list p{color:#bfb5a6;font-size:13px;margin:0}.work-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:18px}.work-card{display:block;background:#fffdf8;border:1px solid var(--line-light);overflow:hidden;border-radius:1rem 1rem 2rem;transition:transform .2s,box-shadow .2s}.work-card:hover{color:var(--ink);transform:translateY(-4px);box-shadow:0 18px 34px #4f3d2318}.work-card img{width:100%;height:250px;object-fit:cover;filter:saturate(1.08) contrast(1.06) brightness(1.02)}.work-card>span,.work-card>h3,.work-card>small{display:block;margin-left:22px}.work-card>h3{margin-top:13px;margin-bottom:6px;color:var(--ink);font-size:21px}.work-card>small{margin-bottom:22px;color:#70685c;font:700 9px/1 'DM Mono',monospace;letter-spacing:.1em}.process-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line)}.process-grid>div{padding:25px 22px 20px 0;border-bottom:1px solid var(--line);min-height:190px}.process-grid>div:nth-child(3n+2),.process-grid>div:nth-child(3n+3){padding-left:22px;border-left:1px solid var(--line)}.process-grid span,.why-grid span{color:var(--gold-light);font:700 11px/1 'DM Mono',monospace;letter-spacing:.1em}.process-grid h3{margin:18px 0 10px}.process-grid p{font-size:13px;margin:0}.why-intro{align-items:end}.why-intro>p{max-width:440px;margin:0 0 6px;font-size:15px;line-height:1.7}.why-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line-light);margin-top:75px}.why-grid>div{min-height:210px;padding:25px 20px 20px 0;border-right:1px solid var(--line-light)}.why-grid>div+div{padding-left:20px}.why-grid>div:last-child{border:0}.why-grid h3{color:var(--ink);font-size:18px;margin:18px 0 12px}.why-grid p{color:var(--muted-dark);font-size:13px;line-height:1.65;margin:0}.coverage-grid{align-items:center}.coverage-grid h2{margin:0}.coverage-tags{display:flex;flex-wrap:wrap;gap:7px;max-width:520px}.coverage-tags span{border:1px solid var(--line-light);color:#68665f;border-radius:2px;padding:9px 11px;font:700 9px/1 'DM Mono',monospace;letter-spacing:.08em}.partner-banner{background:var(--gold);color:var(--ink);border:0}.partner-banner .eyebrow{color:#687719}.partner-banner h2{font-size:clamp(48px,6vw,84px);color:var(--ink)}.partner-banner h2 em{color:#687719}.partner-banner p{color:#535b26;max-width:420px;font-size:15px;line-height:1.65}.closing-cta{text-align:center}.closing-inner{display:flex;flex-direction:column;align-items:center}.closing-inner h2{font-size:clamp(54px,7vw,94px);margin:20px 0 18px}.closing-inner .muted{max-width:570px}.closing-inner .hero-actions{justify-content:center}.footer-top>div:first-child{max-width:650px}.footer-top>div:last-child{min-width:220px}
@media(max-width:1050px){.capability-grid{grid-template-columns:1fr 1fr}.capability-card:nth-child(2){border-right:0}.capability-card:nth-child(3),.capability-card:nth-child(4){border-top:1px solid var(--line)}.work-grid{grid-template-columns:1fr 1fr}.work-card:first-child{grid-column:1/-1}.why-grid{grid-template-columns:1fr 1fr}.why-grid>div:nth-child(2){border-right:0}.why-grid>div:nth-child(3),.why-grid>div:nth-child(4){border-top:1px solid var(--line-light)}}
@media(max-width:850px){.header-actions{grid-column:2;grid-row:1}.header-actions .cta{display:none}.statement-grid,.proof-grid,.why-intro,.coverage-grid,.partner-grid{grid-template-columns:1fr;gap:28px}.hero-v3{min-height:auto}.proof-image{min-height:390px}.proof-image img{min-height:390px}.reference-list>div{grid-template-columns:44px 1fr}.reference-list p{grid-column:2}.process-grid{grid-template-columns:1fr 1fr}.process-grid>div:nth-child(3n+2),.process-grid>div:nth-child(3n+3){padding-left:0;border-left:0}.process-grid>div:nth-child(odd){padding-right:18px}.process-grid>div:nth-child(even){padding-left:18px;border-left:1px solid var(--line)}}
@media(max-width:540px){.header-actions{gap:4px}.lang-switch{font-size:9px}.hero-proof{gap:9px;line-height:1.5}.capability-grid,.work-grid,.process-grid,.why-grid{grid-template-columns:1fr}.capability-card,.capability-card:not(:first-child){padding:24px 0;border-right:0;border-top:1px solid var(--line)}.capability-card:first-child{border-top:0}.work-card:first-child{grid-column:auto}.work-card img{height:230px}.process-grid>div,.process-grid>div:nth-child(even),.process-grid>div:nth-child(odd){padding:22px 0;border-left:0}.why-grid>div,.why-grid>div+div{padding:22px 0;border-right:0;border-top:1px solid var(--line-light)}.why-grid>div:first-child{border-top:0}.reference-list>div{gap:12px}.reference-list strong{font-size:18px}.partner-banner h2{font-size:48px}}

/* V3 visual sync: vivid source color, consistent image framing and footer identity. */
.hero-image img,.proof-image img,.work-card img,.reference-item img{display:block;width:100%;object-fit:cover;object-position:center;image-rendering:auto;}
.hero-image img,.proof-image img{height:100%;}
.work-card img{aspect-ratio:16/10;height:auto;min-height:0;}
.reference-item img{aspect-ratio:16/10;height:auto;}
.footer-brandline{display:flex;align-items:center;gap:16px;border-top:1px solid var(--line);padding:22px 0 4px;color:#a59c90;font:700 10px/1 'DM Mono',monospace;letter-spacing:.12em;text-transform:uppercase;}
.footer-brandline img{width:92px;height:auto;filter:none;}
.footer-social{display:flex;gap:14px;margin-left:auto;}
.footer-social a{color:var(--gold-light);}
@media(max-width:540px){.footer-brandline{align-items:flex-start;flex-wrap:wrap;line-height:1.5}.footer-social{width:100%;margin-left:0}}

/* Verified client logo references */
.client-logo-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-top:54px;margin-bottom:18px}.client-logo-heading .muted{font-size:12px;margin:0}.client-logo-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.client-logo-card{min-height:104px;padding:18px 16px 13px;background:#171912;border:1px solid #d1e85b25;border-radius:12px 12px 24px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px}.client-logo-card img{display:block;width:min(150px,100%);height:42px;object-fit:contain;object-position:center}.client-logo-card span{color:#b8b6ae;font:700 9px/1.2 'DM Mono',monospace;letter-spacing:.08em;text-transform:uppercase;text-align:center}.section.light .client-logo-card{background:#fffdf8;border-color:#dedccf}.section.light .client-logo-card span{color:#625e52}@media(max-width:850px){.client-logo-grid{grid-template-columns:repeat(2,1fr)}.client-logo-heading{display:block}.client-logo-heading .muted{margin-top:10px}}@media(max-width:540px){.client-logo-card{min-height:92px;padding:14px 10px}.client-logo-card img{height:34px}}

/* TRONGOI 2026-10-29 visual system: calm, precise, enterprise-ready */
:root{--container-max:1240px;--gutter-desktop:28px;--gutter-tablet:24px;--gutter-mobile:17px;--section-y-lg:clamp(88px,10vw,152px);--section-y-md:clamp(64px,8vw,108px);--section-y-sm:56px;--grid-gap:clamp(20px,2.5vw,40px);--card-gap:24px;--radius-media:18px;--radius-control:999px;--control-h:48px;--paper:#f4f1ea;--paper-deep:#ebe8e0;--ink:#151515;--ink-soft:#1d1c19;--gold:#d1e85b;--gold-dark:#657417;--muted:#c5c0b5;--muted-dark:#625e55;--line:#ffffff20;--line-light:#15151522}
.wrap{width:min(var(--container-max),calc(100% - var(--gutter-desktop)*2))}.section{padding-block:var(--section-y-lg)}
/* One controlled image language: editorial hero, card, and detail media. Never stretch source pixels. */
img{max-width:100%;height:auto}.hero-image,.proof-image{height:auto;aspect-ratio:1.12/1;min-height:0}.hero-image img,.proof-image img{width:100%;height:100%;object-fit:cover;object-position:50% 50%;display:block}.work-card img,.reference-item img{height:auto;aspect-ratio:16/10;object-fit:cover;object-position:50% 50%;display:block}.work-card:first-child img{aspect-ratio:16/10}.reference-item img{aspect-ratio:3/2}.work-card>h3{min-height:2.5em}.proof-image img{min-height:0}.work-card img[alt*="CIMB"]{object-position:50% 42%}.work-card img[alt*="động thổ"],.work-card img[alt*="Groundbreaking"]{object-position:50% 48%}
/* Keep the visual system quiet: accent is reserved for action and active state. */
.eyebrow,.kicker{color:var(--gold)}.muted{color:var(--muted)}.section.light .muted{color:var(--muted-dark)}.cta{min-height:var(--control-h);padding-inline:22px}.cta:focus-visible,.text-link:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--gold);outline-offset:3px}.text-link{color:var(--gold-dark)}
/* Respectful client references: equal cells, generous safe-area, restrained labels. */
.client-logo-heading{margin-top:clamp(42px,6vw,76px);padding-top:26px;border-top:1px solid var(--line)}.client-logo-heading .muted{font-size:13px}.client-logo-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:22px 0 28px}.client-logo-card{min-height:116px;padding:22px 20px 16px;background:#1b1b18;border:1px solid #ffffff18;border-radius:14px;display:flex;align-items:center;justify-content:center;gap:12px}.client-logo-card img{width:auto;max-width:150px;max-height:40px;height:auto;object-fit:contain;display:block;filter:none}.client-logo-card span{font:600 9px/1.3 'DM Sans',sans-serif;letter-spacing:.08em;text-transform:uppercase;text-align:center;color:#b9b5ab}.client-logo-card:nth-child(3) img{max-height:44px}.client-logo-card:nth-child(4) img{max-height:42px}.client-logo-card:nth-child(5) img{max-width:125px;max-height:38px}.client-logo-card:nth-child(8) img{max-width:126px;max-height:42px}.section.light .client-logo-card{background:#fffdf8;border-color:#15151514}.section.light .client-logo-card span{color:#625e55}
/* Forms: calm qualification without making the first contact feel like procurement paperwork. */
.formbox{max-width:860px}.field input,.field select,.field textarea{min-height:var(--control-h);border-color:#cfc6b7}.field input::placeholder,.field textarea::placeholder{color:#8b8479}.notice{line-height:1.6}.notice a{color:var(--gold-dark);text-decoration:underline;text-underline-offset:3px}
.footer-brandline img{width:180px;height:53px;object-fit:contain;display:block}.footer-brandline{display:flex;align-items:center;gap:18px;color:#9f988c;font:600 10px/1 'DM Sans',sans-serif;letter-spacing:.1em;text-transform:uppercase}
@media(max-width:1050px){.wrap{width:min(100% - var(--gutter-tablet)*2,900px)}.nav{gap:19px}.client-logo-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:850px){.hero-image,.proof-image{aspect-ratio:1.35/1}.work-card img,.reference-item img{aspect-ratio:3/2}.client-logo-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.client-logo-card{min-height:100px;padding:18px 12px}.client-logo-card img{max-width:135px;max-height:36px}.footer-brandline{align-items:flex-start;flex-direction:column;gap:10px}}
@media(max-width:540px){.wrap{width:calc(100% - var(--gutter-mobile)*2)}.section{padding-block:var(--section-y-sm)}.hero-image,.proof-image{aspect-ratio:1.15/1}.client-logo-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.client-logo-card{min-height:92px;padding:14px 8px}.client-logo-card img{max-width:116px;max-height:31px}.client-logo-card span{font-size:8px}.footer-brandline img{width:160px;height:auto}}

/* 2026-10-29 story-led hero, FAQ and compact contact footer */
.hero-v3{position:relative;width:100%;max-width:none;min-height:690px;grid-template-columns:1fr;padding-left:max(28px,calc((100vw - var(--container-max))/2));padding-right:max(28px,calc((100vw - var(--container-max))/2));overflow:hidden;isolation:isolate}.hero-v3>.hero-image{position:absolute;inset:0;z-index:-2;height:auto;min-height:100%;aspect-ratio:auto;border:0;border-radius:0;box-shadow:none;background:#17130f}.hero-v3>.hero-image:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,#11100ee8 0%,#15130eb8 42%,#15130e55 72%,#15130e88 100%),linear-gradient(0deg,#11100ec8 0%,transparent 52%,#11100e45 100%);z-index:1}.hero-v3>.hero-image img{position:absolute;inset:0;width:100%;height:100%;min-height:100%;object-fit:cover;object-position:50% 52%;filter:saturate(1.06) contrast(1.05) brightness(.82)}.hero-v3>.hero-copy{position:relative;z-index:2;max-width:720px;padding-block:110px}.hero-v3 h1{max-width:660px}.hero-v3 .lead{max-width:650px;color:#f0e9dd}.hero-v3 .muted{max-width:600px;color:#d0c8ba}.hero-v3 .hero-proof{color:#d6cbbb}.story-grid,.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:10%;align-items:start}.story-copy{max-width:600px}.story-copy p{font-size:16px;line-height:1.75;color:var(--muted-dark)}.story-points{border-top:1px solid var(--line-light);margin-top:28px}.story-points>div{display:grid;grid-template-columns:160px 1fr;gap:20px;padding:16px 0;border-bottom:1px solid var(--line-light)}.story-points b{font:700 10px/1.3 'DM Mono',monospace;letter-spacing:.08em;color:var(--gold-dark)}.story-points span{font-size:14px;color:var(--ink)}.faq-grid{align-items:start}.faq-list{border-top:1px solid var(--line)}.faq-list details{border-bottom:1px solid var(--line);padding:20px 0}.faq-list summary{cursor:pointer;list-style:none;padding-right:30px;position:relative;font:600 17px/1.4 'Be Vietnam Pro',sans-serif}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:'+';position:absolute;right:0;top:0;color:var(--gold);font:400 26px/1 'DM Sans',sans-serif}.faq-list details[open] summary:after{content:'–'}.faq-list details p{margin:12px 30px 0 0;color:#bdb5a8;font-size:14px;line-height:1.7}.section.light .faq-list{border-color:var(--line-light)}.section.light .faq-list details{border-color:var(--line-light)}.section.light .faq-list summary{color:var(--ink)}.section.light .faq-list summary:after{color:var(--gold-dark)}.section.light .faq-list details p{color:var(--muted-dark)}
.footer{padding:32px 0 18px}.footer-top{align-items:flex-start}.footer-top>div:first-child{max-width:560px}.footer-top>div:last-child{min-width:190px;display:flex;flex-direction:column;gap:12px}.footer-top>div:last-child p{margin:0;font-size:13px;line-height:1.45}.footer h2{font-size:clamp(30px,3.5vw,48px);margin-bottom:12px}.footer .muted{font-size:13px;line-height:1.55}.footer-links{margin:22px 0 18px}.footer-brandline{border-top:1px solid var(--line);padding-top:16px;justify-content:space-between}.footer-brandline span{font-size:9px;color:#8f887d}
@media(max-width:850px){.hero-v3{min-height:650px;padding-left:var(--gutter-tablet);padding-right:var(--gutter-tablet)}.hero-v3>.hero-copy{padding-block:88px}.story-grid,.faq-grid{grid-template-columns:1fr;gap:28px}.story-points>div{grid-template-columns:145px 1fr}.footer-top>div:last-child{margin-top:28px}.footer-brandline{justify-content:flex-start;gap:18px}}
@media(max-width:540px){.hero-v3{min-height:620px;padding-left:var(--gutter-mobile);padding-right:var(--gutter-mobile)}.hero-v3>.hero-copy{padding-block:68px}.hero-v3>.hero-image img{object-position:56% 50%}.story-points>div{grid-template-columns:1fr;gap:7px}.faq-list summary{font-size:16px}.footer-top>div:last-child{display:grid;grid-template-columns:1fr 1fr;gap:14px}.footer-brandline{flex-direction:column;align-items:flex-start}}

/* Phase 4-6: project filters, capability proof and multi-step brief */
.project-filters{display:flex;flex-wrap:wrap;gap:9px;margin:30px 0 0}.project-filter{appearance:none;border:1px solid #d1e85b55;background:transparent;color:inherit;border-radius:999px;padding:10px 14px;font:700 10px/1 'DM Sans',sans-serif;letter-spacing:.1em;text-transform:uppercase;cursor:pointer}.project-filter:hover,.project-filter[aria-pressed="true"]{background:var(--gold);color:var(--ink);border-color:var(--gold)}.filter-note{font-size:12px;color:var(--muted-dark);margin:15px 0 0}.reference-item.is-hidden{display:none}.capability-proof-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:38px}.capability-proof{padding:28px;border:1px solid var(--line-light);border-radius:1rem 1rem 2rem;background:#fffdf8}.capability-proof h3{color:var(--ink);margin:17px 0 11px}.capability-proof p{color:var(--muted-dark);font-size:14px;line-height:1.7}.capability-proof ul{padding-left:18px;color:var(--muted-dark);font-size:13px}.proof-band{margin-top:44px;padding:28px;border-left:2px solid var(--gold);background:#d1e85b16}.form-steps{display:flex;gap:8px;margin:0 0 22px}.form-step{flex:1;padding:10px 12px;border-top:2px solid #d2c6b5;color:#82796e;font:700 10px/1.3 'DM Sans',sans-serif;letter-spacing:.08em;text-transform:uppercase}.form-step.is-active{border-color:#71821d;color:#53630e}.step-actions{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-top:18px}.step-actions .step-back{background:transparent;color:var(--ink);border:1px solid #bfb4a5;box-shadow:none}.step-actions .step-back[hidden]{display:none}.step-fields[hidden]{display:none}@media(max-width:850px){.capability-proof-grid{grid-template-columns:1fr 1fr}}@media(max-width:540px){.capability-proof-grid{grid-template-columns:1fr}.project-filter{font-size:9px}.form-step{font-size:9px;padding:9px 8px}}

/* Performance and motion guard — shared across the public site. */
@supports (content-visibility: auto) {
  main > .section:not(.hero), footer.footer { content-visibility: auto; contain-intrinsic-size: 760px; }
}
@media (prefers-reduced-motion: no-preference) {
  a, button, .cta, .card, .work-card, .reference-item, .trongoi-sticky-bar a { transition-duration: .18s; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
}