/* V-dar V4 - customer presentation only. Admin/files retain their own styles.
   Tokens are centralized here; responsive sections change layout, not palette. */
:root {
  --charcoal:#202326; --graphite:#343B40; --ivory:#F5F2EC;
  --bronze:#A57C55; --white:#FFFFFF; --text-secondary:#74777B; --border:#DEDCD7;
  --text-muted:#5D6165; --surface-soft:#EFEBE4; --cover-surface:#E9E5DD;
  --cover-alt:#E2DFD8; --cover-light:#F0EDE7; --border-strong:#BBB7AF;
  --footer-text:#DBD9D4; --footer-muted:#B3B2AE; --footer-line:#FFFFFF24;
  --bronze-light:#C3A17E; --focus:#8D653F; --overlay:#20232699;
  --radius:2px; --container:1240px; --gutter:32px; --section-space:76px;
  --card-media-ratio:2.25; --card-media-line:#A57C553D;
  --motion-fast:190ms; --motion-standard:290ms; --motion-reveal:590ms;
  --motion-ease:cubic-bezier(.22,1,.36,1); --motion-rise:18px;
  /* Aliases keep the existing templates and shared base compatible. */
  --navy:var(--charcoal); --blue:var(--charcoal); --bg:var(--ivory);
  --muted:var(--text-muted); --line:var(--border);
}
body.customer-site{background:var(--ivory);color:var(--charcoal);font-family:'DM Sans','Segoe UI',Arial,sans-serif;-webkit-font-smoothing:antialiased}
h1,h2,h3,.brand{font-family:Manrope,'Segoe UI',Arial,sans-serif}
h1,h2,h3{font-weight:500}
.wrap{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:var(--gutter)}
main{min-height:45vh}main:focus{outline:0}
a,button,select{transition:color var(--motion-fast) var(--motion-ease),background-color var(--motion-fast) var(--motion-ease),border-color var(--motion-fast) var(--motion-ease)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,textarea:focus-visible{outline:2px solid var(--focus);outline-offset:4px}
.ui-icon{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
/* Compact corporate header and existing two-tier navigation. */
.customer-header{display:block;max-width:none;padding:0;background:var(--white);border-top:2px solid var(--bronze)}
.header-top{display:flex;align-items:center;justify-content:space-between;gap:28px;padding-block:16px;min-height:88px}
.customer-brand{gap:13px;font-size:30px;font-weight:600;letter-spacing:-1.1px;min-width:0}
.customer-brand .brand-logo{width:56px;height:56px;object-fit:contain;filter:none;border:1px solid var(--border);border-radius:0;flex-shrink:0}
.brand-sub{font-family:'DM Sans','Segoe UI',Arial,sans-serif;font-size:7px;font-weight:400;letter-spacing:1.6px;margin-top:8px}
.header-actions{display:flex;align-items:center;gap:22px;font-size:12px;flex-shrink:0;margin-left:auto;white-space:nowrap}
.customer-header .header-actions>.header-phone{display:flex;align-items:center;gap:9px;font-size:13px;letter-spacing:.7px;font-variant-numeric:tabular-nums;padding-right:22px;border-right:1px solid var(--border)}
.header-phone .ui-icon{color:var(--bronze);width:17px;height:17px}
.header-lookup{display:flex;align-items:center;gap:9px;color:var(--text-muted)}
.header-lookup:hover,.header-phone:hover{color:var(--charcoal);text-decoration:underline;text-decoration-color:var(--bronze);text-underline-offset:5px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:13px;border:1px solid var(--charcoal);border-radius:var(--radius);background:var(--charcoal);color:var(--white);padding:14px 23px;min-height:48px;font-size:12px;font-weight:500;letter-spacing:.3px;transform:none;box-shadow:none}
.button:hover{background:var(--graphite);border-color:var(--graphite);transform:none;box-shadow:none}
.button.secondary{background:transparent;border-color:var(--border-strong);color:var(--charcoal)}
.button.secondary:hover{background:var(--surface-soft);border-color:var(--charcoal)}
.button.small{font-size:11px;min-height:40px;padding:9px 15px}
.language{min-width:116px;max-width:150px;min-height:40px;font-size:11px;border:0;border-left:1px solid var(--border);border-radius:0;background:transparent;color:var(--charcoal);padding:8px 0 8px 15px}
.nav-band{background:var(--charcoal);color:var(--white)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.customer-header nav{display:flex;flex-basis:auto;order:initial;gap:8px;margin:0;padding:0;justify-content:flex-start;font-size:12px;font-weight:500}
.customer-header nav a{display:flex;align-items:center;padding:14px 16px;min-height:49px;border-bottom:2px solid transparent;margin:0;color:var(--footer-text);white-space:nowrap}
.customer-header nav a:first-child{padding-left:0;padding-right:24px}
.customer-header nav a:hover{color:var(--white);background:transparent;border-bottom-color:var(--bronze)}
.customer-header nav a.active{color:var(--white);border-bottom-color:var(--bronze)}
.nav-caption{font-size:8px;letter-spacing:1.5px;color:var(--footer-muted);text-align:right}
.menu-toggle{display:none}
/* Architectural editorial: retained illustration, open space and a quiet rule. */
.hero{padding:0;background:var(--ivory);border-bottom:1px solid var(--border);overflow:hidden}
.hero-grid{grid-template-columns:1.12fr .88fr;gap:48px;min-height:605px;align-items:center}
.hero-copy{padding-block:68px;position:relative;z-index:1;min-width:0}
.eyebrow{display:flex;align-items:center;gap:12px;font-size:9px;line-height:1.6;letter-spacing:1.8px;font-weight:500;color:var(--text-muted);margin-bottom:22px}
.eyebrow:before{height:1px;width:30px;border-radius:0;background:var(--bronze);flex-shrink:0}
h1{font-size:clamp(42px,4.1vw,60px);letter-spacing:-2.6px;line-height:1.19;font-weight:500;margin-bottom:27px}
h1 em{font-style:normal;color:var(--charcoal);font-weight:500}
.hero h1 em{display:inline-block;max-width:100%;text-wrap:balance}
.hero p{max-width:455px;font-size:14px;line-height:1.95;color:var(--text-muted);margin-bottom:0}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 0}
.hero-note{display:flex;margin-top:25px;gap:20px;flex-wrap:wrap;font-size:10px;color:var(--text-muted)}
.hero-note span:before{content:'\2014';color:var(--bronze);margin-right:8px}
.architecture-art{margin:46px 0;align-self:center;position:relative;display:flex;align-items:center;justify-content:center;min-width:0;height:480px;background:var(--cover-light);border:1px solid var(--border);border-top-color:var(--bronze)}
.architecture-art img{display:block;width:100%;height:auto;max-height:100%;object-fit:contain;filter:grayscale(1);mix-blend-mode:multiply}
.architecture-art figcaption{position:absolute;inset:auto 20px 18px;display:flex;justify-content:space-between;gap:15px;font-size:8px;line-height:1.7;color:var(--text-muted);letter-spacing:.2px}
.art-index{position:absolute;z-index:1;top:22px;left:22px;font-size:8px;letter-spacing:1.7px;color:var(--text-muted)}
.trust-strip{gap:0;padding:0;background:var(--white);border-block:0;border-bottom:1px solid var(--border)}
.discipline-inner{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));padding-block:22px}
.discipline-inner>span{display:flex;align-items:center;gap:13px;justify-content:center;font-size:12px;color:var(--graphite);font-weight:400;border-right:1px solid var(--border)}
.discipline-inner>span:first-child{justify-content:flex-start}.discipline-inner>span:last-child{border:0;justify-content:flex-end}
.discipline-inner svg{width:23px;height:23px;color:var(--bronze)}
/* Existing library controls, cards and supporting sections. */
.section{padding-block:var(--section-space)}
.section-head{display:flex;justify-content:space-between;gap:28px;align-items:flex-end;margin-bottom:30px}
.section-head h2{font-size:30px;line-height:1.45;letter-spacing:-.9px;font-weight:500;margin-bottom:9px}
.section-head p{color:var(--text-muted);font-size:13px;line-height:1.9;max-width:620px}
.section-head .eyebrow{margin-bottom:13px}
.text-link{color:var(--charcoal);font-size:12px;line-height:1.8;font-weight:500;flex-shrink:0;text-decoration:underline;text-decoration-color:var(--bronze);text-underline-offset:6px}
.text-link:hover{color:var(--graphite);text-decoration-color:var(--charcoal)}
.collection-note{display:flex;gap:9px;align-items:baseline;font-size:11px;color:var(--text-muted);padding:15px 0 0;margin:0;line-height:1.8}
.collection-note:before{content:'';width:4px;height:4px;background:var(--bronze);flex-shrink:0}
.search-bar{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:5px;box-shadow:none;margin-bottom:19px}
.search-bar>span{color:var(--text-muted);font-size:21px}
.search-bar input{font-size:13px;padding:12px;color:var(--charcoal)}
.search-bar input:focus-visible{outline-offset:-3px}.search-bar input::placeholder{color:var(--text-muted)}
.search-bar>.button{min-height:42px;padding:10px 20px;font-size:12px}
.category-list{gap:8px;margin:20px 0 29px}
.chip{font-size:11px;font-weight:400;border:1px solid var(--border);border-radius:var(--radius);padding:9px 13px;line-height:1.5;background:transparent;color:var(--text-muted)}
.chip:hover{background:var(--surface-soft);color:var(--charcoal);border-color:var(--border-strong)}
.chip.active{background:var(--charcoal);color:var(--white);border-color:var(--charcoal)}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:25px}
.card{display:flex;flex-direction:column;border:1px solid var(--border);border-radius:var(--radius);background:var(--white);box-shadow:none;min-width:0;overflow:hidden;transition:border-color .18s}
.card:hover{transform:none;border-color:var(--bronze);box-shadow:none}
.card-media{display:block;position:relative;flex-shrink:0;aspect-ratio:var(--card-media-ratio);width:100%;overflow:hidden;border-bottom:1px solid var(--border);background:var(--cover-light) url('images/document-placeholder.svg') center/cover no-repeat}
.card-media:after{content:'';position:absolute;inset:4px;border:1px solid var(--card-media-line);border-radius:1px;pointer-events:none}
.card-cover,.published-card .published-cover{display:block;width:100%;height:100%;max-width:none;max-height:none;object-fit:cover;object-position:center;margin:0;border-radius:0}
.cover{height:auto;aspect-ratio:16/10;padding:26px;color:var(--charcoal);background-color:var(--cover-surface)!important;background-image:none}
.card:nth-child(3n+2) .cover{background-color:var(--cover-alt)!important}.card:nth-child(3n) .cover{background-color:var(--cover-light)!important}
.cover:after{content:'';width:28px;height:0;border:0;border-top:1px solid var(--bronze);border-radius:0;position:absolute;right:26px;bottom:24px;transform:none}
.cover-label{font-size:8px;letter-spacing:1.3px;font-weight:500;display:block;color:var(--text-muted)}
.cover-title{font-family:Manrope,'Segoe UI',Arial,sans-serif;font-size:26px;letter-spacing:-.8px;line-height:1.3;margin-top:24px;font-weight:500;padding-right:5px}
.cover-symbol{display:none}.cover-brand{bottom:19px;font-size:7px;letter-spacing:1px;color:var(--text-muted)}
html[lang="vi"] .cover-title{font-size:23px;line-height:1.4;letter-spacing:-.6px;margin-top:21px}
.card-body{display:flex;flex-direction:column;flex:1;padding:14px 16px 12px;min-width:0}
.tag-row{font-size:10px;line-height:1.5;gap:8px;margin-bottom:7px;min-height:19px;align-items:center;color:var(--text-muted)}
.badge{border-radius:var(--radius);background:var(--cover-light);color:var(--graphite);font-size:9px;font-weight:500;letter-spacing:.15px;padding:3px 8px;white-space:nowrap}
.badge.premium{background:var(--surface-soft);color:var(--graphite)}
.card .badge{padding:2px 6px;font-size:9px;line-height:1.5}
.card h3{font-size:15px;line-height:22px;letter-spacing:-.2px;font-weight:600;min-height:44px;max-height:44px;margin-bottom:5px;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;line-clamp:2;overflow:hidden;overflow-wrap:break-word}
.card h3 a:hover{text-decoration:underline;text-decoration-color:var(--bronze);text-underline-offset:4px}
.card p{font-size:12px;line-height:18px;min-height:36px;max-height:36px;color:var(--text-muted);margin-bottom:10px;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;line-clamp:2;overflow:hidden;overflow-wrap:break-word}
.card-bottom{margin-top:auto;padding-top:8px;border-top-color:var(--border);font-size:12px;gap:10px;flex-wrap:wrap}
.card-bottom button,.card-bottom .text-link{font-size:11px;min-height:28px;line-height:20px;padding:4px 0;color:var(--charcoal);font-weight:500}
.card-bottom button:hover{text-decoration:underline;text-decoration-color:var(--bronze);text-underline-offset:5px}
.price{font-weight:500}.price.free{color:var(--charcoal)}
.category-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-left:1px solid var(--border);border-top:1px solid var(--border)}
.category-tile{border:0;border-right:1px solid var(--border);border-bottom:1px solid var(--border);border-radius:0;background:transparent;font-size:11px;font-weight:400;min-width:0;gap:11px;padding:22px 18px;line-height:1.8}
.category-tile>span{background:none;color:var(--bronze);min-width:26px;width:26px;height:30px;line-height:30px;font-size:21px;border-radius:0}
.category-tile small{margin-left:auto;color:var(--text-muted)}.category-tile:hover{background:var(--cover-light);border-color:var(--border)}
.benefits{border-radius:var(--radius);background:var(--graphite);color:var(--white);padding:43px 38px;gap:32px;grid-template-columns:1.15fr repeat(3,minmax(0,1fr))}
.benefits .eyebrow{color:var(--footer-text)}.benefits h2{font-size:27px;line-height:1.4;font-weight:400}
.benefits h3{font-size:13px;line-height:1.7;font-weight:500;letter-spacing:0}
.benefits p{color:var(--footer-text);font-size:12px;line-height:1.9;margin-bottom:0}.benefits .icon{color:var(--bronze-light);font-size:23px}
.faq{max-width:850px}details{border-bottom-color:var(--border);padding:23px 0;font-size:13px}
summary{line-height:1.9;padding-right:20px;font-weight:500}details p{font-size:13px;line-height:1.95;color:var(--text-muted)}
.cta{border-radius:var(--radius);padding:38px;background:transparent;border:1px solid var(--border);border-left:2px solid var(--bronze);gap:28px}
.cta h2{font-size:27px;line-height:1.5;font-weight:500;letter-spacing:-.7px}.cta p{font-size:13px;line-height:1.9}
/* Four official footer areas; no additional business data. */
.customer-footer{padding:0;background:var(--charcoal);color:var(--white);border-top:1px solid var(--bronze)}
.footer-intro{display:flex;align-items:center;justify-content:space-between;gap:28px;padding-block:36px;border-bottom:1px solid var(--footer-line)}
.footer-intro p{font-family:Manrope,'Segoe UI',Arial,sans-serif;font-size:27px;font-weight:400;letter-spacing:-.7px;line-height:1.6;margin:0;max-width:720px;text-wrap:balance}
.footer-library{display:flex;align-items:center;gap:30px;font-size:12px;white-space:nowrap;color:var(--footer-text)}
.footer-library span{font-size:21px;color:var(--bronze-light)}.footer-library:hover{text-decoration:underline;text-underline-offset:6px}
.footer-top{grid-template-columns:1.1fr 1.3fr 1fr .9fr;gap:32px;padding-block:48px}
.footer-top>div{min-width:0}.brand--footer{font-size:31px;gap:13px;color:var(--white);font-weight:500}
.brand--footer .brand-logo{width:54px;height:54px;border-color:var(--footer-line)}.brand--footer .brand-sub{color:var(--footer-text);font-size:7px}
.footer-top p{font-size:12px;color:var(--footer-text);line-height:1.95;margin:22px 0 0;max-width:290px}
.footer-top strong{font-size:12px;line-height:1.8;letter-spacing:.15px;font-weight:500;margin:3px 0 22px;color:var(--white)}
.footer-top>div>a:not(.brand){color:var(--footer-text);font-size:12px;line-height:1.9;margin:12px 0}
.footer-top>div>a:not(.brand):hover{color:var(--white);text-decoration:underline;text-decoration-color:var(--bronze-light);text-underline-offset:5px}
.footer-rule{height:1px;width:36px;background:var(--bronze);margin-top:26px}
.footer-top p.footer-draft-note{font-size:11px;color:var(--footer-muted);margin-top:16px}
.footer-contact span{margin-left:6px;color:var(--bronze-light)}
.footer-details{margin:0;font-size:12px;line-height:1.9}.footer-details>div+div{margin-top:20px}
.footer-details dt{display:flex;align-items:center;gap:9px;color:var(--footer-muted);font-size:11px;margin:0}
.footer-details .ui-icon{width:16px;height:16px;color:var(--bronze-light)}
.footer-details dd{color:var(--white);font-size:12px;margin:5px 0 0 25px;overflow-wrap:anywhere}
.footer-details a:hover{text-decoration:underline;text-decoration-color:var(--bronze-light);text-underline-offset:4px}
.footer-top>div>a.social-link{display:inline-flex;align-items:center;gap:10px;border:1px solid var(--footer-line);padding:10px 13px;margin:0 0 13px;border-radius:var(--radius);color:var(--white);font-size:12px}
.social-link .ui-icon{width:24px;height:24px}.social-link>span:last-child{margin-left:8px;color:var(--bronze-light)}
.footer-top>div>a.social-link:hover{background:var(--graphite);border-color:var(--bronze);text-decoration:none}
.footer-bottom{margin:0 auto;border-top:1px solid var(--footer-line);max-width:var(--container);display:flex;align-items:center;justify-content:space-between;gap:22px;padding-block:20px;color:var(--footer-muted);font-size:10px;line-height:1.9}
.footer-bottom a:hover{color:var(--white)}
/* Existing secondary pages, controls, modal and data states. */
.page-heading{padding:48px 0 29px}.page-heading h1{font-size:38px;line-height:1.4;letter-spacing:-1.1px;max-width:920px;font-weight:500}
.page-heading p{font-size:14px;line-height:1.9}.breadcrumb{font-size:11px;line-height:1.9;color:var(--text-muted)}
.breadcrumb a:hover{text-decoration:underline;text-decoration-color:var(--bronze);text-underline-offset:4px}
.notice{font-size:12px;line-height:1.9;border-radius:var(--radius);background:var(--cover-light);border-color:var(--border);border-left:2px solid var(--bronze);color:var(--text-muted)}
.panel{border:1px solid var(--border);border-radius:var(--radius);background:var(--white);box-shadow:none;padding:28px}
.toolbar{font-size:12px;align-items:flex-start;gap:18px;color:var(--text-muted)}
.toolbar select{font-size:12px;min-height:42px;max-width:100%;border-radius:var(--radius);border-color:var(--border);color:var(--charcoal)}
.detail-grid{gap:44px;align-items:start}.detail-grid .cover{aspect-ratio:4/3;height:auto;border-radius:var(--radius);padding:32px}
.detail-grid .cover-title{font-size:40px;margin-top:50px;line-height:1.35;font-weight:500}
html[lang="vi"] .detail-grid .cover-title{font-size:35px;margin-top:45px;line-height:1.45}
.detail-grid h1{font-size:34px;line-height:1.4;letter-spacing:-1px;font-weight:500}
.detail-grid .hero-actions{margin-top:24px}.detail-grid p,.prose p,.prose li{font-size:14px;line-height:1.95;color:var(--text-muted)}
.meta{flex-wrap:wrap;gap:12px;align-items:center}.prose h1{font-size:48px;line-height:1.3;font-weight:500}.prose h2{font-size:25px;line-height:1.6;font-weight:500}
.form-grid{gap:20px}label{font-weight:500}label input,label textarea{border:1px solid var(--border-strong);border-radius:var(--radius);min-height:46px;background:var(--white);color:var(--charcoal)}
.panel label+label{margin-top:14px}label input::placeholder,label textarea::placeholder{color:var(--text-muted)}
.published-card{box-shadow:none;margin-bottom:0}.published-card .card-media{min-width:0}
.empty{padding:48px 24px;border:1px solid var(--border);border-radius:var(--radius);background:var(--white);color:var(--text-muted);line-height:1.9;font-size:13px}
.qr-placeholder{border-color:var(--border-strong);background:var(--cover-light);color:var(--text-muted)}
code{background:var(--cover-light);color:var(--graphite);border-radius:var(--radius)}
dialog{border:1px solid var(--border);border-radius:var(--radius);padding:33px;max-width:650px;color:var(--charcoal);background:var(--white);box-shadow:none}
dialog::backdrop{background:var(--overlay);backdrop-filter:none}dialog h2{font-size:25px;line-height:1.5;font-weight:500}
dialog p,dialog li{font-size:13px;line-height:1.9}.close{width:42px;height:42px;right:8px;top:5px;color:var(--charcoal)}
.preview-paper{border-radius:var(--radius);background:var(--ivory);border-color:var(--border)}
.skip{border:1px solid var(--charcoal);background:var(--white);color:var(--charcoal);border-radius:var(--radius)}
#toast{border-radius:var(--radius);background:var(--charcoal);color:var(--white)}
/* Tablet layout: same tokens and controls, less horizontal density. */
@media(max-width:1100px){
 .nav-caption{display:none}.header-actions{gap:16px}.customer-header .header-actions>.header-phone{padding-right:16px}
 .customer-header .header-actions>.header-lookup{display:none}.hero-grid{gap:32px;min-height:550px}.hero-copy{padding-block:55px}.architecture-art{height:430px}
 .cover{padding:21px}.cover-title{font-size:23px}html[lang="vi"] .cover-title{font-size:21px}
 .benefits{grid-template-columns:repeat(2,minmax(0,1fr))}
 .footer-top{gap:28px;grid-template-columns:1.35fr 1fr 1fr}.footer-brand-column{grid-column:1/-1;display:grid;grid-template-columns:1fr 1.5fr;align-items:center;gap:24px}
 .footer-brand-column p{margin:0;max-width:490px}.footer-rule{display:none}
}
@media(max-width:800px){
 :root{--gutter:24px;--section-space:54px}
 .customer-header{padding:0}.header-top{flex-wrap:wrap;gap:14px;padding-block:14px;min-height:0}
 .customer-brand{font-size:26px}.customer-brand .brand-logo{width:48px;height:48px}.brand-sub{font-size:6px;letter-spacing:1.3px}
 .header-actions{margin-left:auto!important;gap:13px;flex-wrap:nowrap}.customer-header .header-actions>.header-phone{font-size:11px;padding-right:0;border:0;gap:7px}
 .header-actions .button{font-size:10px;padding:9px 12px}.language{font-size:11px;min-width:110px;padding-left:10px}
 .menu-toggle{display:flex;align-items:center;justify-content:flex-start;gap:10px;border:0;border-radius:0;color:var(--white);background:var(--charcoal);font-size:12px;padding:13px var(--gutter);order:3;flex-basis:calc(100% + 2*var(--gutter));margin:0 calc(-1*var(--gutter)) -14px;min-height:47px}
 .menu-toggle:hover{background:var(--graphite)}.menu-toggle .ui-icon{width:17px;height:17px;color:var(--bronze-light)}
 .nav-inner{display:block}.customer-header nav{display:none;flex-direction:column;flex-wrap:nowrap;gap:0;padding:8px 0 15px;font-size:13px}.customer-header nav.open{display:flex}
 .customer-header nav a,.customer-header nav a:first-child{padding:11px 16px;min-height:44px;border:0;border-left:1px solid transparent;margin:0}
 .customer-header nav a.active{border-left-color:var(--bronze-light);background:var(--graphite)}
 .hero-grid{grid-template-columns:1.04fr .96fr;gap:25px;min-height:0}.hero-copy{padding-block:48px}h1{font-size:41px;letter-spacing:-1.7px}
 .hero p{font-size:13px;line-height:1.95}.hero-actions .button{padding:12px 15px;min-height:44px;font-size:11px}.hero-actions{gap:10px}
 .architecture-art{height:390px;margin-block:36px}.architecture-art figcaption{font-size:7px;inset:auto 13px 14px;flex-wrap:wrap;gap:4px}.art-index{left:15px;top:17px;font-size:7px}
 .hero-note{font-size:9px;gap:8px 15px}.discipline-inner{padding-block:19px}.discipline-inner>span{font-size:11px;gap:9px}.discipline-inner svg{width:21px;height:21px}
 .section-head h2{font-size:27px}.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
 .cover{padding:24px;aspect-ratio:16/10}.cover-title{font-size:25px}html[lang="vi"] .cover-title{font-size:22px}
 .category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.category-tile{font-size:12px;padding:19px 16px}.section-head{align-items:flex-start}.text-link{font-size:11px}
 .footer-intro{padding-block:30px}.footer-intro p{font-size:25px}.footer-library{font-size:11px;gap:18px}.footer-top{padding-block:38px;gap:30px}.footer-bottom{flex-wrap:wrap;gap:10px 20px}
 .detail-grid{gap:25px}.detail-grid .cover-title,html[lang="vi"] .detail-grid .cover-title{font-size:29px;margin-top:32px}.detail-grid h1{font-size:29px}
}
/* Mobile: contact with the brand, account/language below, existing menu last. */
@media(max-width:600px){
 :root{--gutter:20px;--section-space:44px}
 .customer-header{padding:0}.header-top{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:16px 12px;padding-block:14px}
 .customer-brand{font-size:27px;gap:10px;grid-column:1;grid-row:1}.customer-brand .brand-logo{width:46px;height:46px}.brand-sub{font-size:6px;letter-spacing:1px;margin-top:7px}
 .header-actions{display:contents}.customer-header .header-actions>.header-phone{grid-column:2;grid-row:1;justify-self:end;font-size:11px;gap:6px;letter-spacing:.3px}
 .header-phone .ui-icon{width:14px;height:14px}.header-actions>.button{grid-column:1;grid-row:2;justify-self:start;font-size:11px;padding:10px 14px;min-height:40px}
 .language{grid-column:2;grid-row:2;justify-self:end;font-size:11px;min-width:118px;max-width:140px;min-height:40px;border:0;padding:8px 0 8px 8px}
 .menu-toggle{grid-column:1/-1;grid-row:3;margin:0 calc(-1*var(--gutter)) -14px;width:calc(100% + 2*var(--gutter));min-height:46px;padding:12px var(--gutter)}
 .hero-grid{grid-template-columns:minmax(0,1fr);gap:0}.hero-copy{padding-block:40px 32px}h1{font-size:41px;line-height:1.25;letter-spacing:-1.8px;font-weight:500}
 .hero h1{max-width:100%;margin-bottom:24px}.hero h1 em{font-size:39px;line-height:1.28}.hero p{font-size:13px;line-height:1.95}
 .eyebrow{font-size:8px;letter-spacing:1.35px;gap:10px;margin-bottom:20px}.eyebrow:before{width:25px}
 .hero-actions{margin-top:26px;gap:10px}.hero-actions .button{font-size:11px;padding:12px 14px}.hero-note{margin-top:22px;font-size:9px;gap:10px 15px}
 .architecture-art{max-width:100%;height:310px;width:100%;margin:0 0 26px;overflow:hidden}.architecture-art img{height:100%;width:100%;object-fit:contain}
 .architecture-art figcaption{inset:auto 13px 12px;font-size:7px;flex-wrap:nowrap;gap:12px}.art-index{top:15px;font-size:7px;letter-spacing:1.2px}
 .discipline-inner{padding-block:18px;gap:10px}.discipline-inner>span,.discipline-inner>span:first-child,.discipline-inner>span:last-child{font-size:10px;line-height:1.8;flex-direction:column;gap:7px;justify-content:center;text-align:center}
 .discipline-inner>span{padding-right:8px}.discipline-inner>span:last-child{padding:0}
 .section-head{gap:16px;flex-direction:column;align-items:flex-start;margin-bottom:25px}.section-head h2{font-size:26px;line-height:1.5;letter-spacing:-.7px;font-weight:500}
 .section-head p{font-size:12px;line-height:1.95}.section-head .eyebrow{font-size:8px;margin-bottom:12px}.section-head .text-link{font-size:11px}
 .grid{grid-template-columns:minmax(0,1fr);gap:22px}.cover,html[lang="vi"] .cover{height:auto;aspect-ratio:16/10;padding:26px}
 .cover-title{font-size:27px;margin-top:23px}html[lang="vi"] .cover-title{font-size:24px;margin-top:21px;line-height:1.4}.cover-label,html[lang="vi"] .cover-label{font-size:8px;letter-spacing:1px}
 .cover-brand{font-size:7px;bottom:19px}.tag-row{font-size:10px;flex-wrap:nowrap}
 .card-bottom{font-size:12px}.card-bottom button{font-size:11px}.collection-note{font-size:10px;padding-top:16px;align-items:baseline}
 .category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.category-tile{font-size:10px;gap:8px;padding:17px 10px;align-items:flex-start}.category-tile>span{min-width:24px;width:24px;height:28px;line-height:28px;font-size:19px}.category-tile small{display:none}
 .benefits{padding:29px 25px;grid-template-columns:minmax(0,1fr);gap:29px}.benefits h2{font-size:27px;margin-bottom:12px}.benefits h3{font-size:14px;margin-block:10px}.benefits p{font-size:12px}
 details{font-size:12px;padding-block:21px}details p{font-size:12px}.cta{padding:28px 24px;gap:24px;flex-direction:column;align-items:flex-start}.cta h2{font-size:25px}.cta p{font-size:12px}
 .footer-intro{flex-direction:column;align-items:flex-start;gap:16px;padding-block:30px}.footer-intro p{font-size:25px;line-height:1.6}.footer-library{font-size:12px;gap:23px}
 .footer-top{grid-template-columns:minmax(0,1fr);gap:34px;padding-block:35px}.footer-brand-column{display:block;grid-column:auto}
 .brand--footer{flex-direction:row;align-items:center;gap:12px;font-size:29px}.brand--footer .brand-logo{width:50px;height:50px}.footer-brand-column p{margin-top:22px;max-width:320px}
 .footer-top p{font-size:12px}.footer-top strong{font-size:13px;line-height:1.9;margin-bottom:17px}.footer-top>div>a:not(.brand){font-size:12px;margin-block:12px}
 .footer-top p.footer-draft-note{font-size:11px}.footer-top>div:last-child{grid-column:auto}.footer-details dd{font-size:13px}.footer-details dt{font-size:12px}.footer-details>div+div{margin-top:18px}
 .footer-top>div>a.social-link{display:inline-flex;margin:0 0 12px;padding:12px 15px}.footer-bottom{font-size:9px;gap:10px;align-items:flex-start;flex-direction:column;padding-block:22px}
 .search-bar{gap:4px}.search-bar>span{padding-left:6px}.search-bar input{font-size:12px;padding:11px 5px}.search-bar>.button{font-size:11px;padding:10px 12px}
 .chip{font-size:10px;padding:9px 11px}.toolbar{gap:14px;flex-wrap:wrap;font-size:11px}.toolbar select{font-size:11px}.notice{font-size:11px;padding:15px}
 .page-heading{padding-top:34px}.page-heading h1{font-size:31px;line-height:1.45}.detail-grid{grid-template-columns:minmax(0,1fr)}
 .detail-grid .cover,html[lang="vi"] .detail-grid .cover{height:auto;aspect-ratio:4/3;padding:28px}.detail-grid .cover-title,html[lang="vi"] .detail-grid .cover-title{font-size:31px;margin-top:38px}
 .detail-grid h1{font-size:30px}.detail-grid p,.prose p,.prose li{font-size:13px}.prose h1{font-size:39px}.prose h2{font-size:24px}.panel{padding:23px}.meta{font-size:11px}
 .stats .panel{padding:10px;font-size:9px}.stats strong{font-size:21px}dialog{padding:31px 24px}dialog h2{font-size:23px}.preview-paper{padding:21px}dialog p,dialog li{font-size:12px}
}
/* V5: an editorial rhythm around the existing V-dar resource library. */
.v5-hero{background:var(--white)}
.v5-hero .hero-grid{position:relative;grid-template-columns:minmax(0,1fr) minmax(0,1.04fr);gap:30px;min-height:570px}
.hero-number{position:absolute;top:23px;left:var(--gutter);font-size:9px;letter-spacing:1.5px;color:var(--text-muted)}
.v5-hero .hero-copy{padding-block:60px 48px}
.v5-hero h1{font-size:clamp(44px,4.25vw,62px);line-height:1.14;letter-spacing:-3px;max-width:640px}
.v5-hero .architecture-art{height:510px;margin-block:30px;overflow:hidden;background:var(--cover-light)}
.v5-hero .architecture-art img{width:110%;max-width:none;height:100%;max-height:none;object-fit:cover;object-position:center;transform:translateX(-3%);filter:grayscale(1);mix-blend-mode:multiply}
.v5-hero .architecture-art:after{content:'';position:absolute;inset:12px;border:1px solid var(--card-media-line);pointer-events:none}
.v5-hero .architecture-art figcaption{z-index:1;inset:auto 0 0;align-items:center;padding:12px 18px;background:var(--ivory);border-top:1px solid var(--border)}
.home-library{padding-block:84px 90px}
.home-library .section-head{padding-bottom:25px;border-bottom:1px solid var(--border)}
.discipline-list{gap:9px;margin-block:19px 25px}
.discipline-list .chip{min-height:38px;padding:9px 14px;white-space:normal;text-align:center}
.library-controls{display:flex;justify-content:flex-end;flex-wrap:wrap;gap:10px;min-width:0}
.library-controls select{min-width:140px}
.previous-topic{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin:-7px 0 25px;padding:11px 14px;border-left:2px solid var(--bronze);background:var(--cover-light);color:var(--text-muted);font-size:12px}
.previous-topic strong{font-weight:600;color:var(--charcoal)}
.previous-topic button{margin-left:auto;border:0;background:none;color:var(--charcoal);font-size:11px;text-decoration:underline;text-decoration-color:var(--bronze);text-underline-offset:4px}
.brand-story{display:grid;grid-template-columns:minmax(0,1.07fr) minmax(0,.93fr);gap:clamp(36px,5vw,86px);align-items:center;padding-block:86px;border-block:1px solid var(--border)}
.brand-story-art{position:relative;min-width:0;height:460px;margin:0;overflow:hidden;border:1px solid var(--border);background:var(--cover-light)}
.brand-story-art img{display:block;width:100%;height:100%;object-fit:cover;object-position:center}
.brand-story-art:after{content:'';position:absolute;inset:12px;border:1px solid var(--card-media-line);pointer-events:none}
.brand-story-art figcaption{position:absolute;inset:auto 0 0;display:flex;justify-content:space-between;gap:16px;padding:13px 18px;background:var(--ivory);border-top:1px solid var(--border);font-size:9px;line-height:1.6;color:var(--text-muted)}
.brand-story-copy{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;min-width:0}
.brand-story h2{max-width:550px;font-size:clamp(36px,3.8vw,54px);line-height:1.2;letter-spacing:-2px;margin-bottom:22px}
.brand-story p{max-width:490px;font-size:14px;line-height:1.95;color:var(--text-muted);margin-bottom:17px}
.brand-story .text-link{margin-top:12px}
.home-categories{padding-block:84px 80px}
.home-categories .category-grid{counter-reset:category;grid-template-columns:repeat(5,minmax(0,1fr))}
.home-categories .category-tile{counter-increment:category;position:relative;min-height:145px;align-items:flex-end;gap:12px;padding:22px 17px;font-size:12px;line-height:1.55;background:var(--white);border-color:var(--border)}
.home-categories .category-tile:before{content:counter(category,decimal-leading-zero);position:absolute;top:16px;left:17px;color:var(--text-muted);font-size:9px;letter-spacing:1.3px}
.home-categories .category-tile small{color:var(--bronze);font-size:15px}
.home-categories .category-tile:hover{background:var(--cover-light);border-color:var(--border-strong)}
.editorial-selection{padding-top:0}
.reading-grid{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);grid-template-rows:repeat(2,minmax(0,200px));gap:18px}
.reading-item{display:grid;grid-template-columns:38% minmax(0,1fr);min-width:0;overflow:hidden;border:1px solid var(--border);background:var(--white);color:var(--charcoal);transition:border-color .18s}
.reading-item:hover{border-color:var(--bronze)}
.reading-item:focus-within{border-color:var(--bronze)}
.reading-item:first-child{grid-row:span 2;grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(0,1fr) auto}
.reading-image{display:block;min-width:0;min-height:0;overflow:hidden;background:var(--cover-light)}
.reading-image img{display:block;width:100%;height:100%;object-fit:cover;object-position:center}
.reading-item:first-child .reading-image{border-bottom:1px solid var(--border)}
.reading-item:not(:first-child) .reading-image{border-right:1px solid var(--border)}
.reading-copy{display:flex;flex-direction:column;align-items:flex-start;position:relative;min-width:0;padding:20px 22px}
.reading-item:first-child .reading-copy{padding:20px 24px 22px}
.reading-index{font-size:9px;letter-spacing:1.3px;color:var(--text-muted);margin-bottom:10px}
.reading-category{font-size:10px;line-height:1.5;color:var(--text-muted);margin-bottom:5px}
.reading-copy h3{font-family:Manrope,'Segoe UI',Arial,sans-serif;font-size:17px;line-height:1.4;font-weight:600;letter-spacing:-.3px;overflow-wrap:anywhere;margin:0}
.reading-item:first-child .reading-copy h3{font-size:21px}
.reading-copy h3 a:hover{text-decoration:underline;text-decoration-color:var(--bronze);text-underline-offset:4px}
.reading-description{font-size:11px;line-height:1.6;color:var(--text-muted);margin-top:7px;margin-bottom:10px;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;line-clamp:2;overflow:hidden}
.reading-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;margin-top:auto;padding-top:9px;border-top:1px solid var(--border);font-size:11px}
.reading-actions button{border:0;background:none;padding:4px 0;color:var(--charcoal);font-size:11px;cursor:pointer}
.reading-actions button:hover{text-decoration:underline;text-decoration-color:var(--bronze);text-underline-offset:4px}
@media(max-width:1100px){
 .v5-hero .hero-grid{min-height:540px;gap:25px}.v5-hero .architecture-art{height:460px}
 .brand-story{gap:36px}.brand-story-art{height:400px}.brand-story h2{font-size:42px}
 .home-categories .category-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
 .reading-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
 .reading-copy{padding:15px 16px}.reading-item:first-child .reading-copy{padding:18px}
 .reading-copy h3{font-size:14px}.reading-item:first-child .reading-copy h3{font-size:18px}
}
@media(max-width:800px){
 .v5-hero .hero-grid{grid-template-columns:minmax(0,1.04fr) minmax(0,.96fr);min-height:0;gap:23px}
 .v5-hero h1{font-size:40px;line-height:1.2;letter-spacing:-1.9px}
 .v5-hero .hero-copy{padding-block:54px 43px}.v5-hero .architecture-art{height:390px;margin-block:32px}
 .home-library{padding-block:64px 67px}.brand-story{padding-block:66px;gap:26px}.brand-story-art{height:350px}.brand-story h2{font-size:36px;letter-spacing:-1.3px}.brand-story p{font-size:12px;line-height:1.8}
 .home-categories{padding-block:65px}.home-categories .category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.home-categories .category-tile{min-height:125px}.home-categories .category-tile:last-child{grid-column:1/-1}
 .reading-grid{grid-template-columns:minmax(0,1fr);grid-template-rows:none}
 .reading-item,.reading-item:first-child{grid-row:auto;grid-template-columns:38% minmax(0,1fr);grid-template-rows:none;min-height:185px}
 .reading-item:first-child .reading-image{border-bottom:0;border-right:1px solid var(--border)}
 .reading-item:first-child .reading-copy h3{font-size:18px}
}
@media(max-width:600px){
 .hero-number{top:17px;left:var(--gutter);font-size:8px}
 .v5-hero .hero-grid{grid-template-columns:minmax(0,1fr);gap:0}
 .v5-hero .hero-copy{padding-block:42px 30px}.v5-hero h1{font-size:40px;line-height:1.22;letter-spacing:-1.8px}
 .v5-hero .architecture-art{height:315px;margin:0 0 24px}.v5-hero .architecture-art img{width:106%;transform:translateX(-2%)}
 .v5-hero .architecture-art figcaption{padding:8px 12px;font-size:7px}
 .home-library{padding-block:48px 54px}.home-library .section-head{padding-bottom:17px}
 .brand-story{display:flex;flex-direction:column;align-items:stretch;gap:26px;padding-block:54px}
 .brand-story-art{width:100%;height:auto;aspect-ratio:5/4}.brand-story-art figcaption{padding:8px 11px;font-size:7px}
 .brand-story-copy{padding-inline:0}.brand-story h2{font-size:37px;line-height:1.25;margin-bottom:16px}
 .brand-story p{font-size:13px;line-height:1.85;margin-bottom:12px}.brand-story .text-link{margin-top:9px}
 .home-categories{padding-block:54px}.home-categories .category-tile{min-height:110px;padding:17px 10px;font-size:11px;gap:7px}
 .home-categories .category-tile:before{left:10px;top:11px;font-size:8px}
 .discipline-list{gap:7px;margin-block:16px 22px}.discipline-list .chip{font-size:10px;padding:8px 11px;min-height:36px}
 .library-controls{justify-content:flex-start}.library-controls select{min-width:0;max-width:calc(50% - 5px);flex:1 1 140px}
 .reading-grid{gap:14px}.reading-item,.reading-item:first-child{grid-template-columns:minmax(0,1fr);grid-template-rows:auto auto;min-height:0}
 .reading-image{width:100%;aspect-ratio:2.25}.reading-item:first-child .reading-image,.reading-item:not(:first-child) .reading-image{border-right:0;border-bottom:1px solid var(--border)}
 .reading-copy,.reading-item:first-child .reading-copy{padding:16px 18px}.reading-copy h3,.reading-item:first-child .reading-copy h3{font-size:16px}
}
/* V5 motion: layout stays fixed; content remains visible until JS opts into a reveal. */
.button{transition:color var(--motion-fast) var(--motion-ease),background-color var(--motion-fast) var(--motion-ease),border-color var(--motion-fast) var(--motion-ease),transform var(--motion-fast) var(--motion-ease)}
.card,.reading-item{transition:border-color var(--motion-fast) var(--motion-ease),box-shadow var(--motion-standard) var(--motion-ease)}
.card:focus-within,.reading-item:focus-within{border-color:var(--bronze);box-shadow:0 8px 24px #2023260D}
.card-cover,.published-card .published-cover,.reading-image img{transition:transform 360ms var(--motion-ease)}
.customer-header nav a{transition:color var(--motion-fast) var(--motion-ease),border-bottom-color var(--motion-standard) var(--motion-ease)}
.chip,.category-tile{transition:color var(--motion-fast) var(--motion-ease),background-color var(--motion-fast) var(--motion-ease),border-color var(--motion-fast) var(--motion-ease)}
.chip:focus-visible{border-color:var(--bronze)}
.search-bar{transition:border-color var(--motion-fast) var(--motion-ease),box-shadow var(--motion-standard) var(--motion-ease)}
.search-bar:focus-within{border-color:var(--bronze);box-shadow:0 0 0 2px #A57C5520}
.toolbar select:focus-visible,.library-controls select:focus-visible{border-color:var(--bronze)}
.footer-library,.footer-top a,.footer-bottom a{transition:color var(--motion-fast) var(--motion-ease),border-color var(--motion-fast) var(--motion-ease),text-decoration-color var(--motion-fast) var(--motion-ease)}
.footer-top>div>a.social-link{transition:color var(--motion-fast) var(--motion-ease),background-color var(--motion-fast) var(--motion-ease),border-color var(--motion-fast) var(--motion-ease)}
@media(hover:hover) and (pointer:fine){
 .card:hover,.reading-item:hover{border-color:var(--bronze);box-shadow:0 10px 30px #20232612}
 .card:hover .card-cover,.card:hover .published-cover,.reading-item:hover .reading-image img{transform:scale(1.026)}
 .button:not(:disabled):not(.disabled):hover{transform:translateY(-1px)}
 .button:not(:disabled):not(.disabled):active{transform:translateY(0)}
 .social-link .ui-icon{transition:transform var(--motion-fast) var(--motion-ease)}
 .social-link:hover .ui-icon{transform:translateX(2px)}
}
@media(hover:none){
 .card:hover:not(:focus-within),.reading-item:hover:not(:focus-within){border-color:var(--border);box-shadow:none}
}
@keyframes vdar-hero-rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
@keyframes vdar-image-settle{from{opacity:.87;transform:scale(1.018)}to{opacity:1;transform:scale(1)}}
@media(prefers-reduced-motion:no-preference){
 .motion-ready .v5-hero.motion-enter .hero-copy>.eyebrow{animation:vdar-hero-rise 590ms var(--motion-ease) both}
 .motion-ready .v5-hero.motion-enter h1{animation:vdar-hero-rise 640ms var(--motion-ease) 70ms both}
 .motion-ready .v5-hero.motion-enter .hero-copy>p{animation:vdar-hero-rise 620ms var(--motion-ease) 150ms both}
 .motion-ready .v5-hero.motion-enter .hero-actions{animation:vdar-hero-rise 620ms var(--motion-ease) 220ms both}
 .motion-ready .v5-hero.motion-enter .hero-note{animation:vdar-hero-rise 600ms var(--motion-ease) 260ms both}
 .motion-ready .v5-hero.motion-enter .architecture-art{animation:vdar-hero-rise 710ms var(--motion-ease) 100ms both}
 .motion-ready .motion-reveal{opacity:1;transform:none;transition:opacity var(--motion-reveal) var(--motion-ease) var(--motion-stagger,0ms),transform var(--motion-reveal) var(--motion-ease) var(--motion-stagger,0ms)}
 .motion-ready .motion-reveal.motion-pending{opacity:0;transform:translateY(var(--motion-rise))}
 .motion-ready .motion-reveal.motion-visible .card-cover,
 .motion-ready .motion-reveal.motion-visible .published-cover,
 .motion-ready .motion-reveal.motion-visible .reading-image img,
 .motion-ready .motion-reveal.motion-visible.brand-story-art img{animation:vdar-image-settle 680ms var(--motion-ease) backwards}
}
@media(prefers-reduced-motion:reduce){
 *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
 .motion-ready .motion-reveal,.motion-ready .motion-reveal.motion-pending{opacity:1!important;transform:none!important}
}