/* =========================================================================
   Đường Việt — compiled design system CSS.
   Ported 1:1 from the original static build (duong-viet-homepage.html +
   gioi-thieu.html), which shared this exact token/component set. New
   components added for the WordPress conversion (blog, CPT archives/singles,
   contact form) follow the same tokens and posture rules — see the bottom
   "WordPress-specific components" block.
   ========================================================================= */

/* ===== Design tokens — Đường Việt ===== */
:root{
  --bg:#ffffff;
  --surface:#f5f5f5;
  --charcoal:#222222;
  --charcoal-2:#333333;
  --fg:#1c1c1c;
  --muted:#6c6c6c;
  --muted-on-dark:#b0aeac;
  --border:#e3e2e0;
  --border-dark:rgba(255,255,255,.1);
  --accent:#ff7a1a;
  --accent-deep:#b35900;
  --accent-ink:#1a0d00;
  --font-display:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',sans-serif;
  --font-body:'Manrope',system-ui,-apple-system,'Segoe UI',sans-serif;
  --cut-sm:14px;
  --cut-lg:56px;
  --container:1360px;
  --ease:cubic-bezier(.22,1,.36,1);
  --dur-fast:200ms;
  --dur-med:550ms;
  --dur-slow:950ms;
}
*{box-sizing:border-box;}
/* overflow-x:clip, not hidden — hidden forces overflow-y to compute as auto
   per spec (CSS Overflow §3), which breaks position:sticky for any descendant
   (the "Một dự án đi qua 5 bước" journey section's sticky left column, found
   2026-09-03 — .journey-sticky was scrolling away instead of pinning at
   top:140px). clip prevents the same horizontal scroll-bleed this was
   originally added for (2026-08-31, scroll-reveal off-canvas transforms)
   without that side effect. */
html{scroll-behavior:smooth;overflow-x:clip;}
body{
  margin:0;background:var(--bg);color:var(--fg);
  font-family:var(--font-body);font-weight:400;
  font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;
  overflow-x:clip;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{font-family:var(--font-display);margin:0;color:var(--charcoal-2);}
.wrap{max-width:var(--container);margin:0 auto;padding:0 48px;}
.cut-sm{clip-path:polygon(0 0,100% 0,100% calc(100% - var(--cut-sm)),calc(100% - var(--cut-sm)) 100%,0 100%);}
.cut-lg{clip-path:polygon(0 0,100% 0,100% calc(100% - var(--cut-lg)),calc(100% - var(--cut-lg)) 100%,0 100%);}
.eyebrow{
  font-size:.78rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  color:var(--accent-deep);display:flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);display:block;}
.eyebrow.on-dark{color:#fff;}
.eyebrow.on-dark::before{background:var(--accent);}
section{padding:120px 0;}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;margin-bottom:56px;}
.section-head h2{font-size:clamp(2rem,2.6vw,3rem);font-weight:800;letter-spacing:-0.02em;line-height:1.08;text-transform:uppercase;position:relative;}
.title-bar{display:block;width:64px;height:3px;background:var(--accent);margin-top:16px;transform:scaleX(0);transform-origin:left;transition:transform var(--dur-slow) var(--ease) .1s;}
.section-head.is-visible .title-bar{transform:scaleX(1);}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-body);font-weight:700;font-size:.85rem;letter-spacing:.06em;text-transform:uppercase;
  padding:17px 30px;border:1.5px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background var(--dur-fast) ease,color var(--dur-fast) ease,border-color var(--dur-fast) ease,transform var(--dur-fast) ease;
}
button.btn{font:inherit;}
.btn:active{transform:translateY(0);}
.btn .arrow{display:inline-block;transition:transform var(--dur-fast) var(--ease);}
.btn:hover .arrow{transform:translateX(4px);}
.btn-primary{background:var(--accent);color:var(--accent-ink);}
.btn-primary:hover{background:#e56d0f;transform:translateY(-2px);}
.btn-outline{border-color:var(--charcoal-2);color:var(--charcoal-2);}
.btn-outline:hover{background:var(--charcoal-2);color:#fff;transform:translateY(-2px);}
.btn-outline-light{border-color:rgba(255,255,255,.4);color:#fff;}
.btn-outline-light:hover{background:#fff;color:var(--charcoal);}
.btn[aria-disabled="true"]{opacity:.6;}
.btn-outline[aria-disabled="true"]:hover{background:transparent;color:var(--charcoal-2);transform:none;}
.btn[aria-disabled="true"]:hover .arrow{transform:none;}
[data-reveal]{opacity:0;transform:translateY(28px);transition:opacity var(--dur-slow) var(--ease),transform var(--dur-slow) var(--ease);}
[data-reveal].is-visible{opacity:1;transform:translateY(0);}
[data-reveal="scale"]{transform:scale(.94);}
[data-reveal="scale"].is-visible{transform:scale(1);}
[data-reveal="left"]{transform:translateX(-42px);}
[data-reveal="left"].is-visible{transform:translateX(0);}
[data-reveal="right"]{transform:translateX(42px);}
[data-reveal="right"].is-visible{transform:translateX(0);}
[data-reveal="mask"]{opacity:1;transform:none;clip-path:inset(0 0 100% 0);transition:clip-path var(--dur-slow) var(--ease);}
[data-reveal="mask"].is-visible{clip-path:inset(0 0 0% 0);}
a:focus-visible,button:focus-visible,.btn:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--accent-deep);outline-offset:3px;border-radius:1px;}
.skip-link{position:absolute;top:-48px;left:16px;z-index:999;background:var(--charcoal);color:#fff;padding:12px 20px;font-size:.85rem;font-weight:700;letter-spacing:.02em;transition:top .2s ease;}
.skip-link:focus{top:16px;}
.screen-reader-text{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(1px,1px,1px,1px);white-space:nowrap;}
.has-grain{position:relative;}
.has-grain::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  [data-reveal]{opacity:1;transform:none;clip-path:none;transition:none;}
  .hero-visual .hv-panel img{transition:none;}
  .hero-gl{display:none!important;}
  .mobile-nav,.mobile-nav-panel{transition:none;}
  .line-inner,.hf,.hero-line,#preloader{transition:none!important;}
  .marquee-track{animation:none!important;}
  .si-dot{animation:none!important;}
  .hv-panel{transform:none!important;}
  .journey-media img{transition:none!important;transform:none!important;}
  .journey-tick,.jnum{transition:none!important;}
  .diary-card img{transition:none!important;}
}

/* ===== Preloader ===== */
#preloader{display:none;}
html.js #preloader{
  position:fixed;inset:0;z-index:1000;background:var(--charcoal);
  display:flex;align-items:center;justify-content:center;flex-direction:column;gap:18px;
  transition:opacity .5s var(--ease),visibility .5s var(--ease);
}
#preloader img{width:56px;height:56px;object-fit:contain;}
.preloader-line{width:120px;height:2px;background:rgba(255,255,255,.15);overflow:hidden;}
.preloader-line span{display:block;width:100%;height:100%;background:var(--accent);transform:translateX(-100%);animation:preload-run 1.1s var(--ease) infinite;}
@keyframes preload-run{0%{transform:translateX(-100%);}50%{transform:translateX(0);}100%{transform:translateX(100%);}}
html.js.is-loaded #preloader{opacity:0;visibility:hidden;pointer-events:none;}

html.js .hf{opacity:0;transform:translateY(16px);transition:opacity var(--dur-slow) var(--ease),transform var(--dur-slow) var(--ease);}
html.js.is-loaded .hf{opacity:1;transform:none;}
html.js .line-mask{display:block;overflow:hidden;}
html.js .line-inner{display:block;transform:translateY(112%);transition:transform var(--dur-slow) var(--ease);}
html.js.is-loaded .line-inner{transform:translateY(0);}

/* ===== Header ===== */
header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.92);backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:padding .25s ease,border-color .25s ease,box-shadow .25s ease;
}
header .wrap{display:flex;align-items:center;justify-content:space-between;padding-top:26px;padding-bottom:26px;transition:padding .25s ease;}
header.is-scrolled .wrap{padding-top:16px;padding-bottom:16px;}
header.is-scrolled{border-color:var(--border);box-shadow:0 8px 24px rgba(0,0,0,.05);}
.brand{display:flex;align-items:center;gap:14px;}
.brand img,.brand .custom-logo{width:42px;height:42px;object-fit:contain;}
.brand .brand-text{display:flex;flex-direction:column;padding-left:14px;border-left:1px solid var(--border);}
.brand .brand-name{display:block;font-family:var(--font-display);font-weight:800;font-size:1.05rem;letter-spacing:.03em;text-transform:uppercase;color:var(--charcoal);line-height:1;}
.brand .brand-sub{display:block;font-size:.64rem;font-weight:600;letter-spacing:.1em;color:var(--muted);text-transform:uppercase;margin-top:5px;}
nav.main-nav{display:flex;align-items:center;gap:40px;}
nav.main-nav a{font-size:.85rem;font-weight:600;letter-spacing:.02em;color:var(--charcoal-2);position:relative;padding:4px 0;}
nav.main-nav a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--accent);transition:width var(--dur-fast) ease;}
nav.main-nav a:hover::after{width:100%;}
nav.main-nav a.is-active{color:var(--charcoal);}
nav.main-nav a.is-active::after{width:100%;}

/* Breadcrumb (brief §22) — sits inside the hero's existing top clearance
   (every inner-page hero already reserves ~172px of empty space to clear
   the fixed header), so it adds no extra height and shifts nothing else. */
.dv-breadcrumb{position:absolute;top:112px;left:0;right:0;z-index:2;}
.dv-breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:6px;}
.dv-breadcrumb li{display:flex;align-items:center;gap:6px;font-size:.72rem;font-weight:600;letter-spacing:.02em;}
.dv-breadcrumb a{color:var(--muted);transition:color var(--dur-fast) ease;}
.dv-breadcrumb a:hover{color:var(--accent-deep);}
.dv-breadcrumb [aria-current]{color:var(--charcoal-2);}
.dv-breadcrumb .sep{color:var(--border);}
@media (max-width:640px){.dv-breadcrumb{top:96px;}.dv-breadcrumb .wrap{padding:0 20px;}}
.header-actions{display:flex;align-items:center;gap:24px;}
.header-actions .btn{padding:13px 24px;}

/* ===== Hero ===== */
#hero{padding:186px 0 0;overflow:hidden;position:relative;}
.hero-grid{display:grid;grid-template-columns:1fr .96fr;gap:56px;align-items:center;padding-bottom:64px;}
.hero-copy h1{font-size:clamp(2.5rem,4.1vw,3.9rem);font-weight:900;letter-spacing:-0.02em;line-height:1.06;text-transform:uppercase;margin:22px 0 26px;color:var(--charcoal);}
.hero-copy p.lead{font-size:1.15rem;color:var(--muted);max-width:46ch;line-height:1.65;margin-bottom:38px;}
.hero-ctas{display:flex;gap:18px;margin-bottom:52px;}
.hero-tags{display:flex;gap:0;flex-wrap:wrap;border-top:1px solid var(--border);padding-top:22px;}
.hero-tags span{font-size:.72rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--charcoal-2);padding-right:22px;margin-right:22px;border-right:1px solid var(--border);}
.hero-tags span:last-child{border-right:none;}

.hero-visual{position:relative;height:560px;}
.hv-panel{position:absolute;overflow:hidden;background:var(--surface);box-shadow:0 24px 50px rgba(0,0,0,.18);will-change:transform;}
.hv-panel img,.hv-panel video{width:100%;height:100%;object-fit:cover;transition:transform 8s ease;}
.hv-main{top:0;right:0;width:82%;height:100%;clip-path:polygon(12% 0,100% 0,100% 100%,0 100%);z-index:1;}
.hv-detail-1{top:-6%;left:0;width:38%;height:34%;clip-path:polygon(0 0,100% 0,100% 88%,88% 100%,0 100%);z-index:2;border:6px solid var(--bg);}
.hv-detail-2{bottom:-8%;left:8%;width:34%;height:30%;clip-path:polygon(0 0,100% 0,100% 100%,12% 100%,0 82%);z-index:2;border:6px solid var(--bg);}
#hero:hover .hv-main img{transform:scale(1.06);}
#hero:hover .hv-detail-1 img,#hero:hover .hv-detail-2 img{transform:scale(1.08);}
.hv-panel.img-error{display:flex;align-items:center;justify-content:center;}
.hv-panel.img-error img{display:none;}
.hv-panel.img-error::after{content:"Hình ảnh chưa cập nhật";font-size:.72rem;font-weight:600;color:var(--muted);text-align:center;padding:0 10px;}
/* Decorative WebGL wireframe accent over the hero photos (assets/js/hero-gl.js) —
   additive via mix-blend:screen, fades in once loaded, invisible if three.js
   never loads (see the JS's own fail-silent design). */
.hero-gl{position:absolute;inset:0;z-index:3;width:100%;height:100%;pointer-events:none;mix-blend-mode:screen;opacity:0;transition:opacity 1.4s var(--ease) .6s;}
html.js.is-loaded .hero-gl{opacity:.55;}
.hero-line{position:absolute;left:-4%;right:38%;top:52%;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform 1.1s var(--ease) .5s;z-index:3;pointer-events:none;}
html.js.is-loaded .hero-line{transform:scaleX(1);}
.hero-badge{position:absolute;left:0;bottom:6%;z-index:4;background:var(--charcoal);color:#f2f0ee;padding:12px 20px;font-size:.7rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;box-shadow:0 12px 28px rgba(0,0,0,.28);}

.scroll-indicator{position:absolute;left:50%;bottom:18px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:10px;z-index:5;}
.si-label{writing-mode:vertical-rl;font-size:.66rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);}
.si-line{width:1px;height:46px;background:var(--border);position:relative;overflow:hidden;}
.si-dot{position:absolute;left:-2px;top:0;width:5px;height:5px;border-radius:50%;background:var(--accent);animation:si-run 1.8s var(--ease) infinite;}
@keyframes si-run{0%{transform:translateY(-6px);opacity:0;}30%{opacity:1;}100%{transform:translateY(46px);opacity:0;}}

/* ===== Marquee ===== */
.marquee{background:var(--charcoal);overflow:hidden;padding:22px 0;border-top:1px solid var(--border-dark);border-bottom:1px solid var(--border-dark);}
.marquee-track{display:flex;width:max-content;animation:marquee-scroll 32s linear infinite;}
.marquee:hover .marquee-track{animation-play-state:paused;}
.marquee-track span{display:inline-flex;align-items:center;font-family:var(--font-display);font-weight:800;font-size:1.5rem;text-transform:uppercase;letter-spacing:.08em;color:rgba(255,255,255,.9);white-space:nowrap;padding-right:1.5rem;}
.marquee-track span em{font-style:normal;color:var(--accent);padding:0 .6em;}
@keyframes marquee-scroll{from{transform:translateX(0);}to{transform:translateX(-50%);}}
@media (prefers-reduced-motion:reduce){.marquee-track{animation:none;} .marquee{overflow-x:auto;}}

/* ===== Capability / stats ===== */
#nang-luc{background:var(--surface);}
.nang-luc-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:80px;align-items:start;}
.nang-luc-copy p{color:var(--muted);font-size:1.05rem;max-width:44ch;margin-top:20px;}
.stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--border);}
.stat-card{background:var(--surface);padding:40px 8px 40px 0;}
.stat-card .num{font-family:var(--font-display);font-weight:900;font-size:clamp(2.6rem,3.4vw,3.6rem);color:var(--charcoal);letter-spacing:-0.02em;line-height:1;}
.stat-card .num em{font-style:normal;color:var(--charcoal);}
.stat-card .label{margin-top:10px;font-size:.82rem;color:var(--muted);letter-spacing:.02em;}

/* ===== Services — interactive experience ===== */
.services-interactive{display:grid;grid-template-columns:.92fr 1.08fr;gap:64px;align-items:start;}
.services-list{border-top:1px solid var(--border);}
.service-row{border-bottom:1px solid var(--border);background:var(--bg);transition:background var(--dur-fast) ease;}
.service-row[open]{background:var(--surface);}
.service-row:not([open]):hover{background:var(--surface);}
.service-row:not([open]):hover .row-title{color:var(--accent-deep);}
.service-row summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:22px;padding:26px 6px;-webkit-tap-highlight-color:transparent;}
.service-row summary::-webkit-details-marker{display:none;}
.service-row .row-idx{font-family:var(--font-display);font-weight:800;font-size:.9rem;color:var(--muted);letter-spacing:.05em;transition:color var(--dur-fast) ease;flex-shrink:0;}
.service-row[open] .row-idx{color:var(--accent-deep);}
.service-row .row-title{font-family:var(--font-display);font-weight:800;font-size:1.05rem;text-transform:uppercase;letter-spacing:.06em;color:var(--charcoal-2);position:relative;flex:1;padding-bottom:6px;}
.service-row .row-title::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);transition:width var(--dur-med) var(--ease);}
.service-row[open] .row-title::after{width:34px;}
.row-chevron{flex-shrink:0;width:22px;height:22px;position:relative;}
.row-chevron::before,.row-chevron::after{content:"";position:absolute;top:50%;left:50%;background:var(--charcoal-2);transition:transform var(--dur-fast) ease;}
.row-chevron::before{width:12px;height:1.5px;transform:translate(-50%,-50%);}
.row-chevron::after{width:1.5px;height:12px;transform:translate(-50%,-50%);}
.service-row[open] .row-chevron::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.service-row:not([open]):hover summary{background:transparent;}
.service-row summary:hover{background:var(--surface);}
.service-detail{padding:0 6px 28px 42px;}
.service-detail p{font-size:.92rem;color:var(--muted);line-height:1.65;max-width:48ch;}
.row-visual-mobile{display:none;}

.services-visual{position:sticky;top:120px;aspect-ratio:4/3.3;overflow:hidden;background:var(--charcoal-2);}
.visual-frame{position:absolute;inset:0;opacity:0;transform:scale(1.05);transition:opacity var(--dur-med) var(--ease),transform var(--dur-slow) var(--ease);display:flex;align-items:flex-end;}
.visual-frame.is-active{opacity:1;transform:scale(1);z-index:1;}
.visual-frame img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.visual-frame.is-texture{background:linear-gradient(135deg,var(--charcoal) 0%,var(--charcoal-2) 60%,color-mix(in oklch,var(--charcoal-2),white 8%) 100%);}
.visual-frame.is-texture::before{content:attr(data-num);position:absolute;right:4%;top:-6%;font-family:var(--font-display);font-weight:900;font-size:11rem;color:rgba(255,255,255,.05);line-height:1;}
.visual-caption{position:relative;z-index:2;padding:26px 30px;background:linear-gradient(0deg,rgba(0,0,0,.72) 0%,rgba(0,0,0,0) 100%);width:100%;}
.visual-caption .vc-tag{font-size:.68rem;font-weight:800;letter-spacing:.09em;text-transform:uppercase;color:var(--accent);}
.visual-caption .vc-title{color:#fff;font-family:var(--font-display);font-weight:800;font-size:1.15rem;text-transform:uppercase;letter-spacing:.06em;margin-top:6px;}
.visual-frame.img-error{background:linear-gradient(135deg,var(--charcoal) 0%,var(--charcoal-2) 60%,color-mix(in oklch,var(--charcoal-2),white 8%) 100%);}
.visual-frame.img-error img{display:none;}

/* ===== Journey — sticky scroll storytelling ===== */
.journey-wrap{display:grid;grid-template-columns:.82fr 1.18fr;gap:72px;}
.journey-sticky{position:sticky;top:140px;align-self:start;}
.journey-sticky h2{font-size:clamp(1.9rem,2.4vw,2.6rem);font-weight:800;text-transform:uppercase;letter-spacing:-0.02em;line-height:1.1;margin-top:18px;}
.journey-sticky p{color:var(--muted);margin-top:16px;max-width:40ch;}
.journey-track{margin-top:32px;display:flex;flex-direction:column;gap:11px;}
.journey-tick{display:flex;align-items:center;gap:12px;font-size:.76rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);transition:color var(--dur-med) ease;}
.journey-tick .dash{width:20px;height:2px;background:var(--border);transition:background var(--dur-med) ease,width var(--dur-med) ease;flex-shrink:0;}
.journey-tick.is-active{color:var(--charcoal);}
.journey-tick.is-active .dash{background:var(--accent);width:32px;}
.journey-steps{display:flex;flex-direction:column;gap:12vh;}
.journey-step{display:grid;grid-template-columns:60px 1fr;gap:22px;align-items:start;}
.journey-step .jnum{font-family:var(--font-display);font-weight:900;font-size:1.2rem;color:var(--muted);transition:color var(--dur-med) ease;}
.journey-step.is-active .jnum{color:var(--accent-deep);}
.journey-media{aspect-ratio:4/3;overflow:hidden;background:var(--surface);position:relative;}
.journey-media img{width:100%;height:100%;object-fit:cover;filter:grayscale(.5) contrast(1.05);transform:scale(1.06);transition:filter var(--dur-slow) var(--ease),transform var(--dur-slow) var(--ease);}
.journey-step.is-active .journey-media img{filter:grayscale(0) contrast(1);transform:scale(1);}
.journey-media.is-texture{display:flex;align-items:flex-end;background:linear-gradient(135deg,var(--charcoal) 0%,var(--charcoal-2) 60%,color-mix(in oklch,var(--charcoal-2),white 8%) 100%);}
.journey-media.is-texture::before{content:attr(data-num);position:absolute;right:4%;top:-4%;font-family:var(--font-display);font-weight:900;font-size:7rem;color:rgba(255,255,255,.06);line-height:1;}
.journey-media.img-error{display:flex;align-items:center;justify-content:center;}
.journey-media.img-error img{display:none;}
.journey-media.img-error::after{content:"Hình ảnh chưa cập nhật";font-size:.76rem;color:var(--muted);text-align:center;padding:0 10px;}
.journey-step h3{margin-top:16px;font-size:1.02rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:var(--charcoal-2);}
.journey-step p{margin-top:8px;font-size:.9rem;color:var(--muted);max-width:44ch;line-height:1.6;}

/* ===== Projects (homepage) ===== */
#du-an{background:var(--surface);}
.projects-grid{display:grid;grid-template-columns:1.4fr 1fr;grid-template-rows:auto auto;gap:28px;}
.project-card{position:relative;overflow:hidden;background:var(--charcoal);}
.project-card.large{grid-row:1 / 3;}
.project-card .ph{position:relative;width:100%;height:100%;min-height:260px;overflow:hidden;background:var(--surface);}
.project-card.large .ph{min-height:620px;}
.project-card img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease);}
.project-card:hover img,.project-card:focus-visible img{transform:scale(1.07);}
.ph.img-error{display:flex;align-items:center;justify-content:center;}
.ph.img-error img{display:none;}
.ph.img-error::after{content:"Hình ảnh chưa cập nhật";font-size:.78rem;font-weight:600;letter-spacing:.03em;color:var(--muted);text-align:center;padding:0 20px;}
.project-overlay{position:absolute;inset:0;background:linear-gradient(0deg,rgba(20,12,4,.86) 0%,rgba(20,12,4,.15) 45%,rgba(255,122,26,0) 70%);display:flex;flex-direction:column;justify-content:flex-end;padding:30px;}
.project-overlay .tag{font-size:.68rem;font-weight:800;letter-spacing:.09em;text-transform:uppercase;color:#f2f0ee;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.28);display:inline-flex;padding:5px 10px;margin-bottom:12px;width:fit-content;}
.project-overlay h3{color:#fff;font-size:1.4rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em;transition:transform var(--dur-med) var(--ease);}
.project-card:hover .project-overlay h3,.project-card:focus-visible .project-overlay h3{transform:translateY(-6px);}
.project-overlay .meta{color:var(--muted-on-dark);font-size:.82rem;margin-top:6px;}
.project-overlay .view{
  margin-top:18px;display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-size:.74rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  opacity:0;transform:translateY(8px);transition:opacity var(--dur-med) ease,transform var(--dur-med) ease;
}
.project-card:hover .view,.project-card:focus-visible .view{opacity:1;transform:translateY(0);}
.projects-footer{display:flex;justify-content:center;margin-top:56px;}

/* ===== Concept → Reality slider ===== */
.cr-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:64px;align-items:center;}
.cr-copy p{color:var(--muted);font-size:1.02rem;max-width:44ch;margin-top:18px;}
.cr-note{margin-top:24px;font-size:.8rem;color:var(--muted);border-left:2px solid var(--border);padding-left:16px;max-width:42ch;}
.cr-slider{position:relative;aspect-ratio:16/11;overflow:hidden;user-select:none;touch-action:pan-y;background:var(--surface);cursor:ew-resize;}
.cr-slider img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;pointer-events:none;}
.cr-reality{z-index:1;}
.cr-concept{z-index:2;clip-path:inset(0 50% 0 0);filter:grayscale(1) contrast(1.15) brightness(1.08);}
.cr-concept::after{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(90deg,rgba(255,122,26,.14) 0 1px,transparent 1px 26px),repeating-linear-gradient(0deg,rgba(255,122,26,.14) 0 1px,transparent 1px 26px);}
/* Real project data (Concept Image ≠ Reality Image) — drop the demo
   grayscale/graph-paper treatment used only when both slider halves are the
   same placeholder photo. */
.cr-concept.cr-concept--real{filter:none;}
.cr-concept.cr-concept--real::after{display:none;}
.cr-label{position:absolute;top:20px;z-index:3;font-size:.68rem;font-weight:800;letter-spacing:.09em;text-transform:uppercase;color:#fff;background:rgba(20,12,4,.55);padding:6px 12px;pointer-events:none;}
.cr-label.left{left:20px;}
.cr-label.right{right:20px;}
.cr-handle{position:absolute;top:0;bottom:0;left:50%;width:0;z-index:4;transform:translateX(-50%);}
.cr-handle::before{content:"";position:absolute;top:0;bottom:0;left:0;width:2px;background:var(--accent);transform:translateX(-1px);}
.cr-grip{position:absolute;top:50%;left:0;transform:translate(-50%,-50%);width:44px;height:44px;background:var(--accent);display:flex;align-items:center;justify-content:center;box-shadow:0 8px 20px rgba(0,0,0,.3);}
.cr-grip svg{width:20px;height:20px;stroke:var(--accent-ink);fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.cr-slider.img-error{display:flex;align-items:center;justify-content:center;cursor:default;}
.cr-slider.img-error img,.cr-slider.img-error .cr-handle,.cr-slider.img-error .cr-label{display:none;}
.cr-slider.img-error::after{content:"Hình ảnh chưa cập nhật";font-size:.8rem;color:var(--muted);}

/* ===== Construction diary (homepage strip) ===== */
#cong-truong{background:var(--charcoal);color:#fff;}
#cong-truong .section-head h2{color:#fff;}
#cong-truong .section-head p{color:var(--muted-on-dark);}
.diary-grid{display:grid;grid-template-columns:1.5fr 1fr;grid-template-rows:repeat(2,1fr);gap:20px;}
.diary-card{position:relative;overflow:hidden;min-height:220px;}
.diary-card.large{grid-row:1/3;min-height:auto;}
.diary-card img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;filter:grayscale(.55) contrast(1.05);transition:filter var(--dur-med) ease,transform .6s var(--ease);}
.diary-card:hover img{filter:grayscale(0) contrast(1.05);transform:scale(1.05);}
.diary-card.img-error img{display:none;}
.diary-card.img-error::after{content:"Hình ảnh chưa cập nhật";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:.78rem;color:var(--muted-on-dark);background:var(--charcoal-2);}
.diary-overlay{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;padding:22px;background:linear-gradient(0deg,rgba(0,0,0,.78) 0%,rgba(0,0,0,0) 55%);}
.diary-overlay .tag{font-size:.64rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);}
.diary-overlay .loc{color:#fff;font-weight:700;font-size:.95rem;margin-top:6px;}
.diary-overlay .date{color:var(--muted-on-dark);font-size:.76rem;margin-top:2px;}

/* ===== Process ===== */
.process-row{display:grid;grid-template-columns:repeat(var(--steps,7),1fr);gap:0;position:relative;}
.process-row::before{content:"";position:absolute;top:19px;left:0;right:0;height:1px;background:var(--border);transform:scaleX(0);transform-origin:left;transition:transform 1.2s var(--ease);}
.process-row.is-visible::before{transform:scaleX(1);}
.process-step{position:relative;padding-right:18px;}
.process-step .dot{width:38px;height:38px;border:1.5px solid var(--charcoal-2);background:var(--bg);display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-weight:800;font-size:.85rem;position:relative;z-index:1;transition:background var(--dur-fast) ease,border-color var(--dur-fast) ease,color var(--dur-fast) ease;}
.process-step:hover .dot{background:var(--accent);border-color:var(--accent);color:#1a0d00;}
.process-step .step-label{margin-top:20px;font-size:.82rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--charcoal-2);}
.process-step .step-desc{margin-top:8px;font-size:.8rem;color:var(--muted);line-height:1.55;max-width:17ch;}

/* ===== Why us ===== */
#tai-sao{background:var(--charcoal);color:#fff;}
#tai-sao .section-head h2{color:#fff;}
#tai-sao .section-head p{color:var(--muted-on-dark);max-width:44ch;}
.why-list{border-top:1px solid var(--border-dark);}
.why-row{display:grid;grid-template-columns:72px 1fr 1.7fr;gap:32px;align-items:baseline;padding:26px 0;border-bottom:1px solid var(--border-dark);transition:background .2s ease;}
.why-row:hover{background:rgba(255,255,255,.03);}
.why-row .idx{font-family:var(--font-display);font-weight:800;font-size:1rem;color:var(--accent);letter-spacing:.02em;}
.why-row h3{color:#fff;font-size:1.1rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em;}
.why-row p{color:var(--muted-on-dark);font-size:.92rem;line-height:1.65;max-width:58ch;}

/* ===== Clients ===== */
.clients-strip{display:flex;flex-wrap:wrap;gap:14px;}
.client-slot{flex:1 1 150px;height:88px;border:1px dashed var(--border);display:flex;align-items:center;justify-content:center;}
.client-slot span{font-size:.68rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#c9c7c4;}
.client-slot--filled{border-style:solid;filter:grayscale(1);opacity:.72;transition:filter .2s ease,opacity .2s ease;padding:10px;}
.client-slot--filled:hover{filter:grayscale(0);opacity:1;}
.client-slot--filled img{max-height:44px;width:auto;object-fit:contain;}
.clients-note{margin-top:22px;font-size:.82rem;color:var(--muted);max-width:52ch;}

/* ===== CTA ===== */
#cta{background:var(--charcoal-2);color:#fff;}
.cta-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:60px;align-items:center;}
.cta-grid h2{font-size:clamp(2.1rem,3vw,3.2rem);font-weight:800;text-transform:uppercase;letter-spacing:-0.02em;color:#fff;line-height:1.08;}
.cta-grid p.lead{color:var(--muted-on-dark);font-size:1.05rem;margin-top:18px;max-width:46ch;}
.cta-grid .cta-btns{margin-top:34px;}
.cta-contact{border-left:1px solid var(--border-dark);padding-left:56px;}
.cta-contact .row{margin-bottom:24px;display:flex;gap:14px;align-items:flex-start;}
.cta-contact .row-icon{width:20px;height:20px;margin-top:3px;flex-shrink:0;stroke:var(--accent);fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.cta-contact .row .k{font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted-on-dark);margin-bottom:6px;}
.cta-contact .row .v{font-family:var(--font-display);font-weight:700;font-size:1.3rem;color:#fff;}
.cta-contact .row .v.small{font-family:var(--font-body);font-size:1rem;font-weight:600;}

/* ===== Footer ===== */
footer{background:var(--charcoal);color:var(--muted-on-dark);padding:88px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:56px;padding-bottom:64px;border-bottom:1px solid var(--border-dark);}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand p{font-size:.88rem;line-height:1.7;max-width:34ch;color:var(--muted-on-dark);}
.logo-chip{background:#fff;padding:6px;display:inline-flex;width:42px;height:42px;}
.logo-chip img{width:100%;height:100%;object-fit:contain;}
.footer-col h4{color:#fff;font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;margin-bottom:22px;}
.footer-col ul li{margin-bottom:13px;}
.footer-col ul li a{font-size:.9rem;color:var(--muted-on-dark);transition:color .2s ease;}
.footer-col ul li a:hover{color:var(--accent);}
.footer-col a.is-active{color:#fff;}
.footer-social{display:flex;gap:10px;margin-top:22px;}
.footer-social a{width:44px;height:44px;border:1px solid var(--border-dark);display:flex;align-items:center;justify-content:center;transition:border-color .2s ease,background .2s ease;}
.footer-social a:hover{background:var(--accent);border-color:var(--accent);}
.footer-social a svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
[aria-disabled="true"]{cursor:not-allowed;}
.footer-social a[aria-disabled="true"]{opacity:.45;}
.footer-social a[aria-disabled="true"]:hover{background:transparent;border-color:var(--border-dark);}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding:26px 0;font-size:.78rem;color:var(--muted-on-dark);}

/* ===== Mobile nav toggle / overlay ===== */
.mobile-nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;padding:0;border:none;background:transparent;cursor:pointer;flex-shrink:0;}
.mobile-nav-toggle span{display:block;width:24px;height:2px;background:var(--charcoal-2);transition:transform .25s ease,opacity .25s ease;}
.mobile-nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.mobile-nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.mobile-nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-nav{position:fixed;inset:0;z-index:200;background:var(--charcoal);opacity:0;transition:opacity .3s ease;}
.mobile-nav.is-open{opacity:1;}
.mobile-nav-panel{height:100%;display:flex;flex-direction:column;padding:26px 28px 40px;transform:translateY(-12px);transition:transform .3s ease;}
.mobile-nav.is-open .mobile-nav-panel{transform:translateY(0);}
.mobile-nav-top{display:flex;align-items:center;justify-content:space-between;}
.mobile-nav-top .brand-name{font-family:var(--font-display);font-weight:800;font-size:1.1rem;}
.mobile-nav-close{width:44px;height:44px;border:1px solid var(--border-dark);background:transparent;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;}
.mobile-nav-close svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.mobile-nav nav{display:flex;flex-direction:column;gap:4px;margin-top:48px;}
.mobile-nav nav a{font-family:var(--font-display);font-weight:800;font-size:1.7rem;text-transform:uppercase;letter-spacing:-0.01em;color:#fff;padding:14px 0;border-bottom:1px solid var(--border-dark);}
.mobile-nav nav a.is-soon{opacity:.4;}
.mobile-nav nav a.is-active{color:var(--accent);}
.mobile-nav-cta{margin-top:36px;justify-content:center;}
.mobile-nav-contact{margin-top:auto;padding-top:32px;border-top:1px solid var(--border-dark);font-size:.85rem;color:var(--muted-on-dark);display:flex;flex-direction:column;gap:10px;}
.mobile-nav-contact div{display:flex;align-items:center;gap:10px;}
.mobile-nav-contact svg{width:16px;height:16px;flex-shrink:0;stroke:var(--accent);fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.main-nav a.is-soon,.footer-col a.is-soon{opacity:.45;}
.main-nav a.is-soon:hover::after{width:0;}

/* ===== About page (Giới thiệu) ===== */
#about-hero{padding:172px 0 100px;overflow:hidden;}
.ah-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.ah-copy h1{font-size:clamp(2.2rem,3.6vw,3.4rem);font-weight:900;letter-spacing:-0.02em;line-height:1.12;text-transform:uppercase;margin:20px 0 24px;color:var(--charcoal);}
.ah-copy p.lead{font-size:1.1rem;color:var(--muted);max-width:48ch;line-height:1.65;margin-bottom:34px;}
.ah-tags{display:flex;gap:0;flex-wrap:wrap;border-top:1px solid var(--border);padding-top:22px;}
.ah-tags span{font-size:.72rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--charcoal-2);padding-right:22px;margin-right:22px;border-right:1px solid var(--border);}
.ah-tags span:last-child{border-right:none;}
.ah-visual{position:relative;aspect-ratio:4/4.7;overflow:hidden;box-shadow:0 24px 50px rgba(0,0,0,.18);}
.ah-visual img{width:100%;height:100%;object-fit:cover;}
.ah-visual.img-error{display:flex;align-items:center;justify-content:center;background:var(--surface);}
.ah-visual.img-error img{display:none;}
.ah-visual.img-error::after{content:"Hình ảnh chưa cập nhật";font-size:.78rem;color:var(--muted);}
.ah-badge{position:absolute;left:0;bottom:8%;z-index:2;background:var(--charcoal);color:#f2f0ee;padding:12px 20px;font-size:.7rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;box-shadow:0 12px 28px rgba(0,0,0,.28);}

.story-split{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:center;}
.story-copy p.lead-line{font-size:1.28rem;color:var(--charcoal-2);font-weight:600;line-height:1.5;margin-top:18px;}
.story-copy p{color:var(--muted);font-size:1.02rem;line-height:1.75;margin-top:18px;max-width:56ch;}
.story-visual{position:relative;aspect-ratio:4/5;overflow:hidden;}
.story-visual img{width:100%;height:100%;object-fit:cover;}
.story-visual.img-error{display:flex;align-items:center;justify-content:center;background:var(--surface);}
.story-visual.img-error img{display:none;}
.story-visual.img-error::after{content:"Hình ảnh chưa cập nhật";font-size:.8rem;color:var(--muted);}
.story-chip{position:absolute;left:-24px;bottom:32px;background:var(--bg);box-shadow:0 16px 40px rgba(0,0,0,.16);padding:18px 22px;max-width:220px;}
.story-chip .k{font-size:.66rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-deep);}
.story-chip .v{margin-top:8px;font-size:.86rem;color:var(--charcoal-2);font-weight:600;line-height:1.5;}

#tam-nhin-su-menh{background:var(--charcoal);color:#fff;}
.vm-head{margin-bottom:56px;}
.vm-head h2{color:#fff;}
.vm-grid{display:grid;grid-template-columns:1fr 1fr;}
.vm-col{padding:0 56px 0 0;}
.vm-col:last-child{padding:0 0 0 56px;border-left:1px solid var(--border-dark);}
.vm-idx{font-family:var(--font-display);font-weight:900;font-size:1rem;color:var(--accent);letter-spacing:.05em;}
.vm-col h3{margin-top:16px;font-size:clamp(1.6rem,2.2vw,2.2rem);font-weight:800;text-transform:uppercase;letter-spacing:-0.02em;line-height:1.15;color:#fff;}
.vm-col p{margin-top:16px;color:var(--muted-on-dark);font-size:1rem;line-height:1.75;max-width:42ch;}

.values-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--border);}
.value-card{background:var(--bg);padding:36px 22px 40px;}
.value-card .vnum{font-family:var(--font-display);font-weight:900;font-size:1.5rem;color:var(--charcoal-2);letter-spacing:-0.01em;}
.value-card h3{margin-top:14px;font-size:1rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:var(--charcoal-2);}
.value-card p{margin-top:10px;font-size:.86rem;color:var(--muted);line-height:1.6;}

/* =========================================================================
   WordPress-specific components (blog, CPT archives/singles, contact form)
   — same tokens, same posture rules (hairline borders, clip-path cuts, no
   soft radius, ≤2 accent uses per screen) as every section above.
   ========================================================================= */

/* Blog (Tin tức) */
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:48px;}
.blog-card{background:var(--bg);border:1px solid var(--border);display:flex;flex-direction:column;}
.blog-card-media{display:block;aspect-ratio:4/3;overflow:hidden;background:var(--surface);}
.blog-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.blog-card:hover .blog-card-media img{transform:scale(1.05);}
.blog-card-media--empty{width:100%;height:100%;background:linear-gradient(135deg,var(--surface) 0%,var(--border) 100%);}
.blog-card-body{padding:22px 22px 26px;}
.blog-card-tag{font-size:.68rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-deep);}
.blog-card-title{margin-top:10px;font-size:1.1rem;font-weight:800;line-height:1.3;}
.blog-card-title a:hover{color:var(--accent-deep);}
.blog-card-excerpt{margin-top:10px;font-size:.9rem;color:var(--muted);line-height:1.6;}
.blog-card-meta{margin-top:14px;font-size:.72rem;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);}

.blog-featured{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center;background:var(--surface);}
.blog-featured-media{aspect-ratio:16/10;overflow:hidden;}
.blog-featured-media img{width:100%;height:100%;object-fit:cover;}
.blog-featured-body{padding:0 48px 0 0;}
.blog-featured-body h2{margin-top:14px;font-size:clamp(1.6rem,2.4vw,2.2rem);font-weight:800;line-height:1.2;}
.blog-featured-body p{margin-top:14px;color:var(--muted);line-height:1.7;}

.blog-single-media{aspect-ratio:16/9;overflow:hidden;margin:40px 0;}
.blog-single-media img{width:100%;height:100%;object-fit:cover;}
.blog-single-content,.generic-page .blog-single-content{font-size:1.05rem;line-height:1.8;color:var(--fg);max-width:70ch;}
.blog-single-content p{margin:0 0 22px;}
.blog-single-content h2{font-size:1.6rem;font-weight:800;margin:44px 0 18px;text-transform:uppercase;letter-spacing:-0.01em;}
.blog-single-content h3{font-size:1.25rem;font-weight:800;margin:32px 0 14px;}
.blog-single-content img{margin:32px 0;}
.blog-single-content a{color:var(--accent-deep);text-decoration:underline;text-underline-offset:3px;}
.blog-single-content ul,.blog-single-content ol{margin:0 0 22px;padding-left:1.4em;list-style:revert;}
.blog-single-content blockquote{border-left:2px solid var(--accent);padding-left:22px;margin:32px 0;font-size:1.15rem;color:var(--charcoal-2);font-style:italic;}
.page-links{margin-top:32px;font-size:.85rem;}

/* Project/Service archives */
#archive-hero{padding:172px 0 80px;overflow:hidden;}
#archive-hero .ah-copy h1{font-size:clamp(2.6rem,5.2vw,5rem);line-height:1.02;}
.project-filters{display:flex;flex-wrap:wrap;align-items:center;gap:10px;border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:22px 0;margin-bottom:56px;}
.filter-btn{
  font-family:var(--font-body);font-weight:700;font-size:.78rem;letter-spacing:.04em;text-transform:uppercase;
  padding:10px 18px;border:1px solid var(--border);background:transparent;color:var(--charcoal-2);cursor:pointer;
  transition:background var(--dur-fast) ease,color var(--dur-fast) ease,border-color var(--dur-fast) ease;
}
.filter-btn:hover{border-color:var(--charcoal-2);}
.filter-btn.is-active{background:var(--charcoal);border-color:var(--charcoal);color:#fff;}
.filter-count{font-size:.78rem;color:var(--muted);margin-left:auto;align-self:center;white-space:nowrap;}
.archive-empty{display:none;text-align:center;padding:64px 0;color:var(--muted);font-size:.98rem;border:1px dashed var(--border);}
.archive-empty.is-visible{display:block;}
.projects-archive{padding-top:56px;}
.projects-archive-grid,.diary-archive-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:8px;}
.project-tile{position:relative;overflow:hidden;background:var(--charcoal);display:block;}
.project-tile .ph{aspect-ratio:4/3.2;overflow:hidden;background:var(--surface);}
.project-tile .ph img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease);}
.project-tile:hover .ph img{transform:scale(1.06);}
.project-tile .project-overlay{padding:24px;}
.project-tile[hidden]{display:none;}

/* "Dịch vụ" archive — editorial full-detail list (restored 2026-09-03 to match
   the original OpenDesign source; replaces an earlier simplified numbered-tile
   grid this theme shipped with instead). */
#svc-hero{padding:172px 0 96px;overflow:hidden;}
.sh-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:end;}
.sh-copy h1{font-size:clamp(2.3rem,3.8vw,3.6rem);font-weight:900;letter-spacing:-0.02em;line-height:1.1;text-transform:uppercase;margin:20px 0 24px;color:var(--charcoal);}
.sh-copy p.lead{font-size:1.1rem;color:var(--muted);max-width:50ch;line-height:1.65;}
.sh-stats{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--border);}
.sh-stats .row{display:flex;justify-content:space-between;align-items:baseline;padding:16px 0;border-bottom:1px solid var(--border);}
.sh-stats .row .n{font-family:var(--font-display);font-weight:900;font-size:1.4rem;color:var(--charcoal-2);}
.sh-stats .row .l{font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);text-align:right;max-width:20ch;}

#svc-grid{background:var(--surface);}
.svc-list{display:flex;flex-direction:column;gap:1px;background:var(--border);}
.svc-card{
  background:var(--bg);display:grid;grid-template-columns:.9fr 1.1fr;gap:0;align-items:stretch;
  position:relative;transition:background var(--dur-fast) ease;
}
.svc-card:nth-child(even){grid-template-columns:1.1fr .9fr;}
.svc-card:nth-child(even) .svc-media{order:2;}
.svc-card:nth-child(even) .svc-body{order:1;}
.svc-media{position:relative;aspect-ratio:5/4;overflow:hidden;background:var(--charcoal-2);}
.svc-media img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease);}
.svc-card:hover .svc-media img{transform:scale(1.05);}
.svc-media.is-texture{display:flex;align-items:flex-end;background:linear-gradient(135deg,var(--charcoal) 0%,var(--charcoal-2) 60%,color-mix(in oklch,var(--charcoal-2),white 8%) 100%);}
.svc-media.is-texture::before{content:attr(data-num);position:absolute;right:4%;top:-4%;font-family:var(--font-display);font-weight:900;font-size:9rem;color:rgba(255,255,255,.06);line-height:1;}
.svc-media.img-error{display:flex;align-items:center;justify-content:center;background:var(--surface);}
.svc-media.img-error img{display:none;}
.svc-media.img-error::after{content:"Hình ảnh chưa cập nhật";font-size:.78rem;color:var(--muted);}
.svc-body{padding:56px 64px;display:flex;flex-direction:column;justify-content:center;}
.svc-idx{font-family:var(--font-display);font-weight:900;font-size:1rem;color:var(--accent-deep);letter-spacing:.05em;display:inline-block;transform-origin:left center;transition:transform var(--dur-fast) var(--ease);}
.svc-card:hover .svc-idx{transform:scale(1.15);}
.svc-body h3{margin-top:16px;font-size:clamp(1.4rem,1.9vw,1.9rem);font-weight:800;text-transform:uppercase;letter-spacing:-0.01em;color:var(--charcoal);line-height:1.15;}
.svc-body p.desc{margin-top:16px;font-size:.98rem;color:var(--muted);line-height:1.7;max-width:46ch;}
.svc-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;}
.svc-chips span{font-size:.72rem;font-weight:700;letter-spacing:.03em;color:var(--charcoal-2);background:var(--surface);border:1px solid var(--border);padding:7px 12px;}
.svc-card:nth-child(even) .svc-chips span{background:var(--bg);}
.svc-cta{
  margin-top:26px;display:inline-flex;align-items:center;gap:8px;
  font-size:.76rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--accent-deep);
  width:fit-content;padding:4px 0;border-bottom:1px solid var(--border);transition:border-color var(--dur-fast) ease;
}
.svc-card:hover .svc-cta{border-color:var(--accent-deep);}

#svc-process .process-row{display:grid;grid-template-columns:repeat(7,1fr);gap:0;position:relative;}
#svc-process .process-row::before{content:"";position:absolute;top:19px;left:0;right:0;height:1px;background:var(--border);transform:scaleX(0);transform-origin:left;transition:transform 1.2s var(--ease);}
#svc-process .process-row.is-visible::before{transform:scaleX(1);}

.diary-archive-grid .diary-card{aspect-ratio:4/3.4;}

/* Single project (case study) */
.project-info-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:40px;padding-top:28px;border-top:1px solid var(--border);}
.pinfo .k{font-size:.68rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:6px;}
.pinfo .v{font-family:var(--font-display);font-weight:700;font-size:1.05rem;color:var(--charcoal-2);}
.project-hero-media{aspect-ratio:16/9;overflow:hidden;}
.project-hero-media img,.project-hero-media video{width:100%;height:100%;object-fit:cover;}
.project-video-embed{width:100%;height:100%;}
.project-video-embed iframe{width:100%;height:100%;border:0;display:block;}
.project-narrative{background:var(--surface);}
.narrative-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px 64px;}
.narrative-block p{margin-top:14px;color:var(--fg);line-height:1.75;max-width:52ch;}
.gallery-strip{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:0 48px;max-width:var(--container);margin:0 auto;}
.gallery-strip img{width:100%;height:auto;object-fit:cover;}
.gallery-item.img-error{aspect-ratio:4/3;background:var(--surface);display:flex;align-items:center;justify-content:center;}
.gallery-item.img-error img{display:none;}
.gallery-item.img-error::after{content:"Hình ảnh chưa cập nhật";font-size:.8rem;color:var(--muted);}
.share-row{display:flex;align-items:center;gap:12px;margin-top:24px;}
.share-row .share-label{font-size:.68rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-right:2px;}
.share-row a,.share-row button{width:40px;height:40px;border:1px solid var(--border);background:transparent;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:border-color var(--dur-fast) ease,background var(--dur-fast) ease;}
.share-row a:hover,.share-row button:hover{background:var(--charcoal-2);border-color:var(--charcoal-2);}
.share-row a:hover svg,.share-row button:hover svg{stroke:#fff;}
.share-row svg{width:18px;height:18px;stroke:var(--charcoal-2);fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;transition:stroke var(--dur-fast) ease;}
.share-copy{position:relative;}
.share-copy-label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

.next-project-strip{display:flex;flex-direction:column;align-items:flex-start;gap:14px;background:var(--charcoal);color:#fff;padding:64px 48px;}
.next-project-title{font-family:var(--font-display);font-weight:800;font-size:clamp(1.6rem,3vw,2.6rem);text-transform:uppercase;letter-spacing:-0.02em;}

/* Contact page — hero quick-links + boxed form card (restored 2026-09-03 to
   match the original OpenDesign mockup; these sections existed in the static
   HTML export but were never carried into the WordPress port). */
.contact-hero-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:56px;align-items:end;}
.contact-hero-grid p.lead{font-size:1.1rem;color:var(--muted);max-width:48ch;line-height:1.65;margin-top:18px;}
.contact-quick{display:flex;flex-direction:column;border:1px solid var(--border);}
.contact-quick a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 22px;border-top:1px solid var(--border);transition:background var(--dur-fast) ease;}
.contact-quick a:first-child{border-top:none;}
.contact-quick a:hover,.contact-quick a:focus-visible{background:var(--surface);}
.contact-quick .k{font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);}
.contact-quick .v{font-family:var(--font-display);font-weight:700;font-size:1.05rem;color:var(--charcoal-2);text-align:right;}
.contact-quick .v.small{font-size:.85rem;}
.contact-card-wrap{background:var(--surface);padding:56px 0;}
.contact-card{background:var(--bg);border:1px solid var(--border);padding:48px;}
.contact-card .contact-copy .hint{color:var(--muted);font-size:.9rem;line-height:1.6;margin:14px 0 8px;}

/* Contact page's own closing CTA ("Không chắc bắt đầu từ đâu?") — a distinct,
   dedicated variant of the CTA pattern (side-by-side accent-bordered stats,
   not the icon-row list the shared template-parts/cta.php uses), matching
   the original OpenDesign source exactly. */
#contact-cta{background:var(--charcoal-2);color:#fff;}
.cc-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:60px;align-items:center;}
.cc-grid h2{font-size:clamp(2rem,2.8vw,2.9rem);font-weight:800;text-transform:uppercase;letter-spacing:-0.02em;color:#fff;line-height:1.1;}
.cc-grid p.lead{color:var(--muted-on-dark);font-size:1.02rem;margin-top:16px;max-width:48ch;}
.cc-stats{display:flex;gap:40px;flex-wrap:wrap;}
.cc-stats .stat{border-left:2px solid var(--accent);padding-left:16px;}
.cc-stats .stat .n{font-family:var(--font-display);font-weight:900;font-size:1.6rem;color:#fff;display:block;}
.cc-stats .stat .l{font-size:.76rem;color:var(--muted-on-dark);letter-spacing:.03em;margin-top:4px;display:block;max-width:18ch;}

/* Contact form */
.contact-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:64px;align-items:start;}
.contact-banner{margin-top:22px;padding:14px 18px;font-size:.88rem;border:1px solid;}
.contact-banner--ok{border-color:var(--accent);color:var(--accent-deep);background:color-mix(in oklch,var(--accent) 8%,white);}
.contact-banner--err{border-color:#b3261e;color:#b3261e;background:#fdf2f1;}
.contact-form{margin-top:28px;display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.contact-form .field{display:flex;flex-direction:column;gap:6px;font-size:.8rem;font-weight:700;letter-spacing:.02em;color:var(--charcoal-2);}
.contact-form .field--full{grid-column:1 / -1;}
.contact-form input,.contact-form select,.contact-form textarea{
  font-family:var(--font-body);font-size:.95rem;font-weight:400;color:var(--fg);
  border:1px solid var(--border);background:var(--bg);padding:13px 14px;
}
.contact-form input:focus-visible,.contact-form select:focus-visible,.contact-form textarea:focus-visible{outline:2px solid var(--accent-deep);outline-offset:1px;}
.contact-form button{grid-column:1 / -1;justify-self:start;margin-top:8px;}
.dv-hp-wrap{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden;}
.contact-side{display:flex;flex-direction:column;gap:24px;padding-top:8px;}
.contact-side .row{display:flex;gap:14px;align-items:flex-start;}
.contact-side .row-icon{width:20px;height:20px;margin-top:3px;flex-shrink:0;stroke:var(--accent-deep);fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.contact-side .k{font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:6px;}
.contact-side .v{font-family:var(--font-display);font-weight:700;font-size:1.15rem;color:var(--charcoal-2);}
.contact-side .v.small{font-family:var(--font-body);font-size:.95rem;font-weight:600;}
.contact-map{margin-top:8px;aspect-ratio:4/3;overflow:hidden;border:1px solid var(--border);}
.contact-map iframe{width:100%;height:100%;border:0;}
.qf-group-title{grid-column:1 / -1;font-size:.72rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-deep);margin:8px 0 -4px;padding-top:18px;border-top:1px solid var(--border);}
.contact-form .qf-group-title:first-of-type{border-top:none;padding-top:0;margin-top:0;}

/* Floating Contact Bar — mobile only (brief §20); desktop already shows the
   header's "Nhận báo giá" button, so this stays hidden there. */
.floating-contact{display:none;}
@media (max-width:860px){
  .floating-contact{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:150;
    background:var(--charcoal);border-top:1px solid var(--border-dark);
    padding:8px 8px calc(8px + env(safe-area-inset-bottom));gap:8px;
  }
  .fc-btn{
    flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
    padding:8px 4px;min-height:44px;color:#f2f0ee;font-size:.68rem;font-weight:700;
    letter-spacing:.02em;text-align:center;transition:background var(--dur-fast) ease,transform var(--dur-fast) ease;
  }
  .fc-btn svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
  .fc-btn:hover,.fc-btn:focus-visible{background:rgba(255,255,255,.08);}
  .fc-btn.fc-quote{background:var(--accent);color:var(--accent-ink);}
  .fc-btn.fc-quote:hover,.fc-btn.fc-quote:focus-visible{background:#e56d0f;}
  body.has-floating-contact footer{padding-bottom:64px;}
}

/* Sidebar widgets (blog) */
.widget{margin-bottom:36px;}
.widget-title{font-size:.85rem;font-weight:800;letter-spacing:.04em;text-transform:uppercase;margin-bottom:16px;}

@media (max-width:1200px){
  .wrap{padding:0 32px;}
  nav.main-nav{gap:26px;}
  .hero-grid{gap:36px;padding-bottom:48px;}
  .hero-visual{height:460px;}
  .nang-luc-grid{grid-template-columns:1fr;}
  .journey-wrap{gap:40px;}
  .journey-steps{gap:56px;}
  .services-interactive{gap:36px;}
  .services-visual{position:relative;top:0;aspect-ratio:16/9;}
  .why-row{grid-template-columns:48px 1fr;row-gap:10px;}
  .why-row p{grid-column:1 / -1;}
  .projects-grid{grid-template-columns:1fr;}
  .project-card.large{grid-row:auto;}
  .cr-wrap{gap:36px;}
  .diary-grid{grid-template-columns:1fr 1fr;grid-template-rows:auto auto auto;}
  .diary-card.large{grid-row:auto;grid-column:1/-1;min-height:340px;}
  .process-row{grid-template-columns:repeat(4,1fr);row-gap:40px;}
  .process-row::before{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cta-grid{grid-template-columns:1fr;}
  .cta-contact{border-left:none;padding-left:0;border-top:1px solid var(--border-dark);padding-top:32px;}
  .ah-grid{gap:36px;}
  .story-split{gap:40px;}
  .vm-grid{grid-template-columns:1fr;gap:40px;}
  .vm-col{padding:0;}
  .vm-col:last-child{padding:32px 0 0;border-left:none;border-top:1px solid var(--border-dark);}
  .values-grid{grid-template-columns:repeat(2,1fr);}
  .value-card:last-child{grid-column:1/-1;}
  .blog-grid,.projects-archive-grid,.diary-archive-grid{grid-template-columns:1fr 1fr;}
  .blog-featured{grid-template-columns:1fr;}
  .blog-featured-body{padding:32px;}
  .project-info-grid{grid-template-columns:1fr 1fr;}
  .narrative-grid{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .contact-form{grid-template-columns:1fr;}
  .sh-grid{gap:32px;}
  .contact-hero-grid{gap:32px;}
  .svc-body{padding:40px 40px;}
  #svc-process .process-row{grid-template-columns:repeat(4,1fr);row-gap:40px;}
  #svc-process .process-row::before{display:none;}
  .cc-grid{grid-template-columns:1fr;}
  .cc-stats{margin-top:8px;}
}

/* Header switches to the hamburger menu at 1100px, not 860px — below 1100px the
   6-item text nav + full "Đường Việt – Quảng cáo & Nội thất" brand name + CTA
   button no longer fit on one line (confirmed: individual nav labels wrap
   mid-word at 1050px, still clean at 1100px). Kept separate from the 860px
   block below (which is genuinely mobile-specific, services-section layout). */
@media (max-width:1100px){
  nav.main-nav{display:none;}
  .mobile-nav-toggle{display:flex;}
  .header-actions{gap:14px;}
}

/* Hero fully collapses to 1 column at 860px, matching the same breakpoint the
   nav uses in the original OpenDesign source (2026-09-03 re-export) — between
   860-1200px it just stays 2-column with a reduced gap/height (see the 1200px
   block above), which is enough room since the columns are fluid (%-based). */
@media (max-width:860px){
  .hero-grid{grid-template-columns:1fr;padding-bottom:40px;}
  .hero-visual{max-width:560px;height:420px;margin-top:12px;}
  .journey-wrap{grid-template-columns:1fr;}
  .journey-sticky{position:static;}
  .cr-wrap{grid-template-columns:1fr;}
  .ah-grid{grid-template-columns:1fr;padding-bottom:8px;}
  .ah-visual{max-width:520px;aspect-ratio:4/3;margin-top:8px;}
  .contact-hero-grid{grid-template-columns:1fr;gap:28px;align-items:start;}
  .story-split{grid-template-columns:1fr;}
  .story-visual{max-width:520px;aspect-ratio:16/10;}
  .story-chip{left:0;bottom:-24px;}
  .services-list{border-top:none;}
  .row-visual-mobile{display:block;margin-top:16px;aspect-ratio:16/10;overflow:hidden;background:var(--surface);}
  .row-visual-mobile img{width:100%;height:100%;object-fit:cover;filter:grayscale(.55) contrast(1.05);}
  .services-visual{display:none;}
  .services-interactive{grid-template-columns:1fr;gap:0;}
  .sh-grid{grid-template-columns:1fr;}
  .svc-card,.svc-card:nth-child(even){grid-template-columns:1fr;}
  .svc-card:nth-child(even) .svc-media{order:1;}
  .svc-card:nth-child(even) .svc-body{order:2;}
  .svc-media{aspect-ratio:16/9;}
}

@media (max-width:640px){
  section{padding:72px 0;}
  .wrap{padding:0 20px;}
  #hero{padding:150px 0 0;}
  #archive-hero{padding:150px 0 56px;}
  .filter-count{margin-left:0;width:100%;order:-1;margin-bottom:4px;}
  #svc-hero{padding:150px 0 64px;}
  .svc-body{padding:28px 22px;}
  .cc-stats{gap:24px;}
  .contact-quick a{flex-direction:column;align-items:flex-start;gap:4px;padding:16px 18px;}
  .contact-quick .v{text-align:left;word-break:break-word;}
  .contact-card-wrap{padding:36px 0;}
  .contact-card{padding:28px 22px;}
  .sh-stats .row{flex-direction:column;align-items:flex-start;gap:4px;}
  .sh-stats .row .l{text-align:left;}
  #svc-process .process-row{grid-template-columns:repeat(2,1fr);row-gap:32px;column-gap:20px;}
  .hero-grid{padding-bottom:40px;}
  .hero-visual{max-width:none;height:340px;}
  .hv-detail-1,.hv-detail-2{display:none;}
  .hv-main{width:100%;clip-path:polygon(6% 0,100% 0,100% 100%,0 100%);}
  .hero-line{right:6%;}
  .scroll-indicator{display:none;}
  .marquee-track span{font-size:1.05rem;}
  .hero-ctas{flex-direction:column;align-items:stretch;margin-bottom:40px;}
  .hero-ctas .btn{justify-content:center;}
  .hero-tags span{padding-right:14px;margin-right:14px;font-size:.66rem;}
  .brand-sub{display:none;}
  .header-actions > a.btn{display:none;}
  .stats-grid{grid-template-columns:1fr;}
  .stat-card{padding:28px 4px;}
  .journey-step{grid-template-columns:44px 1fr;gap:16px;}
  .journey-steps{gap:40px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:36px;}
  .diary-grid{grid-template-columns:1fr;}
  .diary-card.large{grid-column:auto;min-height:260px;}
  .diary-card{min-height:200px;}
  .cr-label{font-size:.6rem;padding:5px 9px;}
  .process-row{grid-template-columns:repeat(2,1fr);row-gap:32px;column-gap:20px;}
  .footer-grid{grid-template-columns:1fr;gap:40px;}
  .footer-bottom{flex-direction:column;gap:8px;align-items:flex-start;}
  .cta-contact{padding-left:0;}
  .client-slot{flex:1 1 100px;height:72px;}
  #about-hero{padding:150px 0 64px;}
  .ah-visual{max-width:none;aspect-ratio:4/3.2;}
  .story-chip{position:static;margin-top:16px;box-shadow:none;padding:0;background:transparent;}
  .values-grid{grid-template-columns:1fr;}
  .blog-grid,.projects-archive-grid,.diary-archive-grid{grid-template-columns:1fr;}
  .project-info-grid{grid-template-columns:1fr 1fr;}
  .gallery-strip{grid-template-columns:1fr;padding:0 20px;}
  .next-project-strip{padding:48px 20px;}
}