/* GR Engineering Co. Ltd. — grengineerings.com
   Design recreated from Moork (bslthemes) architecture theme direction,
   with GR brand gold palette. */

@font-face{font-family:'Albert Sans';font-style:normal;font-weight:300 600;font-display:swap;src:url('../fonts/albertsans.woff2') format('woff2')}
@font-face{font-family:'Roboto Condensed';font-style:normal;font-weight:400 600;font-display:swap;src:url('../fonts/robotocondensed.woff2') format('woff2')}

:root{
  --accent:#C6913C;
  --accent-deep:#A87A2E;
  --accent-soft:#EFCF8B;
  --dark:#212121;
  --dark-2:#2B2B2B;
  --text:#898D96;
  --soft:#F8F8F8;
  --border:#EDEDED;
  --white:#FFFFFF;
  --ease:cubic-bezier(0,0,.3642,1);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Albert Sans',-apple-system,sans-serif;
  font-size:18px;font-weight:400;line-height:1.6;
  color:var(--text);background:var(--white);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}

h1,h2,h3,h4,h5,h6,.h1,.h2,.h3,.h4,.h5,.h6{
  font-family:'Roboto Condensed',sans-serif;
  color:var(--dark);font-weight:500;text-transform:uppercase;
  letter-spacing:-.03em;line-height:1.15;word-wrap:break-word;
}
h1,.h1{font-size:clamp(46px,6.5vw,77px)}
h2,.h2{font-size:clamp(38px,4.6vw,57px)}
h3,.h3{font-size:clamp(28px,3vw,38px)}
h4,.h4{font-size:24px}
h5,.h5{font-size:20px}
h6,.h6{font-size:18px}
.light{color:var(--white)}
.accent{color:var(--accent)}

.container{max-width:1320px;margin:0 auto;padding:0 30px}
.section{padding:120px 0}
.section-soft{background:var(--soft)}
.section-dark{background:var(--dark)}
.section-dark h2,.section-dark h3,.section-dark h4{color:var(--white)}

/* ---------- suptitle ---------- */
.suptitle{
  font-size:16px;font-weight:600;text-transform:uppercase;
  letter-spacing:.12em;color:var(--dark);margin-bottom:26px;
  display:flex;align-items:center;gap:14px;
}
.suptitle::before{content:'';width:36px;height:2px;background:var(--accent);flex:none}
.suptitle.center{justify-content:center}
.section-dark .suptitle{color:var(--white)}

/* ---------- buttons ---------- */
.btn{
  white-space:nowrap;cursor:pointer;display:inline-flex;align-items:center;gap:12px;
  font-family:'Albert Sans',sans-serif;font-weight:600;font-size:17px;color:var(--white);
  border:none;height:62px;border-radius:2px;padding:0 38px;background:var(--accent);
  transition:.3s var(--ease);
}
.btn:hover{background:var(--dark);transform:translateY(-2px)}
.btn.dark{background:var(--dark)}
.btn.dark:hover{background:var(--accent)}
.section-dark .btn:hover{background:var(--white);color:var(--dark)}
.text-link{color:var(--accent);font-weight:600;position:relative;display:inline-flex;align-items:center;gap:8px;transition:.3s}
.text-link::after{content:'→';transition:transform .3s var(--ease)}
.text-link:hover::after{transform:translateX(6px)}

/* ---------- header ---------- */
.header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:.35s var(--ease);padding:26px 0;
}
.header.scrolled{background:rgba(255,255,255,.96);box-shadow:0 4px 24px rgba(33,33,33,.07);padding:14px 0;backdrop-filter:blur(8px)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
.brand{display:flex;align-items:center;gap:14px}
.brand img{height:52px;width:auto;transition:.3s}
.header.scrolled .brand img{height:44px}
.brand-name{font-family:'Roboto Condensed',sans-serif;font-weight:600;font-size:19px;letter-spacing:.02em;color:var(--white);text-transform:uppercase;line-height:1.1;transition:color .3s}
.brand-name small{display:block;font-size:10px;letter-spacing:.28em;color:var(--accent-soft);font-weight:500;transition:color .3s}
.header.scrolled .brand-name{color:var(--dark)}
.header.scrolled .brand-name small{color:var(--accent)}
.nav{display:flex;align-items:center;gap:38px}
.nav a{font-weight:500;font-size:16.5px;color:rgba(255,255,255,.92);position:relative;padding:6px 0;transition:color .3s}
.header.scrolled .nav a{color:var(--dark)}
.header.scrolled .nav a:hover,.header.scrolled .nav a.active{color:var(--accent)}
.nav a::after{content:'';position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--accent);transition:width .3s var(--ease)}
.nav a:hover,.nav a.active{color:var(--accent)}
.nav a:hover::after,.nav a.active::after{width:100%}
.header-cta{display:inline-flex}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.burger span{width:26px;height:2px;background:var(--white);transition:.3s}
.header.scrolled .burger span{background:var(--dark)}

/* mobile nav */
.mobile-nav{
  position:fixed;inset:0;background:var(--dark);z-index:99;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  opacity:0;pointer-events:none;transition:.4s var(--ease);
}
.mobile-nav.open{opacity:1;pointer-events:auto}
.mobile-nav a{font-family:'Roboto Condensed',sans-serif;font-size:34px;text-transform:uppercase;color:var(--white);padding:10px;transition:color .3s}
.mobile-nav a:hover{color:var(--accent)}
body.nav-open{overflow:hidden}
body.nav-open .burger span:nth-child(1){transform:translateY(7px) rotate(45deg);background:#fff}
body.nav-open .burger span:nth-child(2){opacity:0}
body.nav-open .burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg);background:#fff}

/* ---------- hero / banners ---------- */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:flex-end;
  background:var(--dark);overflow:hidden;
}
.hero-img{position:absolute;inset:0}
.hero-img img{width:100%;height:100%;object-fit:cover;opacity:.55}
.hero-img::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(33,33,33,.25) 0%,rgba(33,33,33,.05) 45%,rgba(33,33,33,.82) 100%)}
.hero-content{position:relative;z-index:2;padding:0 0 110px;width:100%}
.hero .suptitle{color:var(--white)}
.hero h1{color:var(--white);max-width:1000px}
.hero-bottom{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;flex-wrap:wrap;margin-top:44px}
.hero-text{max-width:520px;color:rgba(255,255,255,.75)}

/* inner page banner */
.page-banner{
  position:relative;padding:210px 0 110px;background:var(--dark);overflow:hidden;
}
.page-banner-img{position:absolute;inset:0}
.page-banner-img img{width:100%;height:100%;object-fit:cover;opacity:.3}
.page-banner-img::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(33,33,33,.5),rgba(33,33,33,.85))}
.page-banner .container{position:relative;z-index:2}
.page-banner h1{color:var(--white)}
.page-banner .suptitle{color:var(--white)}
.breadcrumbs{margin-top:22px;font-size:15px;color:rgba(255,255,255,.6)}
.breadcrumbs a{color:var(--accent-soft)}
.breadcrumbs a:hover{color:var(--accent)}

/* ---------- split layouts ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.split-3-2{grid-template-columns:3fr 2fr}
.img-frame{overflow:hidden;position:relative}
.img-frame img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.img-frame:hover img{transform:scale(1.05)}
.img-tall{aspect-ratio:4/5}
.img-wide{aspect-ratio:16/10}
.img-square{aspect-ratio:1/1}
.lead-text{font-size:21px;line-height:1.65}
.mt-1{margin-top:16px}.mt-2{margin-top:28px}.mt-3{margin-top:44px}.mb-2{margin-bottom:28px}

/* ---------- service cards ---------- */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--border);border-left:1px solid var(--border)}
.service-card{
  border-right:1px solid var(--border);border-bottom:1px solid var(--border);
  padding:50px 40px;transition:.4s var(--ease);position:relative;background:var(--white);display:block;
}
.service-card:hover{background:var(--dark)}
.service-card .num{font-family:'Roboto Condensed',sans-serif;font-size:15px;color:var(--accent);letter-spacing:.1em;display:block;margin-bottom:26px}
.service-card h4{margin-bottom:16px;transition:color .4s}
.service-card p{font-size:16.5px;transition:color .4s}
.service-card .text-link{margin-top:24px;font-size:16px}
.service-card:hover h4{color:var(--white)}
.service-card:hover p{color:rgba(255,255,255,.65)}
.section-dark .service-card{background:transparent;border-color:rgba(255,255,255,.12)}
.section-dark .services-grid{border-color:rgba(255,255,255,.12)}
.section-dark .service-card h4{color:var(--white)}
.section-dark .service-card:hover{background:rgba(255,255,255,.04)}

/* ---------- counters ---------- */
.counters{display:grid;grid-template-columns:repeat(4,1fr);gap:40px}
.counter-item{border-left:2px solid var(--accent);padding-left:28px}
.counter-item .num{font-family:'Roboto Condensed',sans-serif;font-size:clamp(48px,5vw,68px);font-weight:500;color:var(--dark);line-height:1;letter-spacing:-.03em}
.section-dark .counter-item .num{color:var(--white)}
.counter-item .num span{color:var(--accent)}
.counter-item p{margin-top:12px;font-size:16.5px}

/* ---------- project cards ---------- */
.projects-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px}
.project-card{display:block;position:relative;overflow:hidden}
.project-card .img-frame{aspect-ratio:16/11}
.project-card .p-info{display:flex;align-items:baseline;justify-content:space-between;gap:20px;padding:24px 0 0;border-bottom:1px solid var(--border);padding-bottom:22px}
.project-card h4{transition:color .3s}
.project-card:hover h4{color:var(--accent)}
.p-loc{font-size:15.5px;color:var(--text);white-space:nowrap}
.p-tag{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-top:8px}

/* full-width gallery rows */
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.gallery-grid .img-frame{aspect-ratio:4/5}
.gallery-caption{margin-top:16px}
.gallery-caption h6{margin-bottom:2px}
.gallery-caption span{font-size:15px;color:var(--text)}

/* ---------- tables ---------- */
.spec-table{width:100%;border-collapse:collapse;font-size:16.5px}
.spec-table th{
  font-family:'Roboto Condensed',sans-serif;text-transform:uppercase;letter-spacing:.06em;
  background:var(--dark);color:var(--white);font-weight:500;text-align:left;padding:18px 24px;font-size:16px;
}
.spec-table td{padding:16px 24px;border-bottom:1px solid var(--border);vertical-align:top}
.spec-table tr:nth-child(even) td{background:var(--soft)}
.spec-table td:first-child{font-weight:600;color:var(--dark);width:34%}
.table-wrap{overflow-x:auto}
.status-uc{color:var(--accent);font-weight:600}
.status-done{color:#3E8E5A;font-weight:600}

/* ---------- lists ---------- */
.check-list li{position:relative;padding:9px 0 9px 34px;color:var(--dark);font-weight:500;font-size:17px}
.check-list li::before{
  content:'';position:absolute;left:0;top:14px;width:18px;height:18px;
  background:var(--accent);clip-path:polygon(14% 44%,0 65%,50% 100%,100% 16%,80% 0%,43% 62%);
}
.tag-list{display:flex;flex-wrap:wrap;gap:12px}
.tag-list li{border:1px solid var(--border);padding:10px 22px;border-radius:2px;font-size:15.5px;font-weight:500;color:var(--dark);transition:.3s}
.tag-list li:hover{border-color:var(--accent);color:var(--accent)}
.section-dark .tag-list li{border-color:rgba(255,255,255,.18);color:rgba(255,255,255,.85)}

/* ---------- feature rows ---------- */
.feature-row{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--border);border:1px solid var(--border)}
.feature-cell{background:var(--white);padding:36px 30px}
.feature-cell h5{margin-bottom:10px}
.feature-cell h5 span{color:var(--accent)}
.feature-cell p{font-size:15.5px}

/* ---------- marquee ---------- */
.marquee{overflow:hidden;white-space:nowrap;padding:34px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.marquee-track{display:inline-block;animation:scroll 40s linear infinite}
.marquee span{
  font-family:'Roboto Condensed',sans-serif;font-size:clamp(28px,3vw,44px);text-transform:uppercase;
  letter-spacing:.02em;color:var(--dark);padding:0 26px;font-weight:500;
}
.marquee span::after{content:'◆';color:var(--accent);font-size:14px;vertical-align:6px;padding-left:52px}
.marquee.on-dark span{color:rgba(255,255,255,.9)}
@keyframes scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- CTA band ---------- */
.cta-band{position:relative;background:var(--dark);overflow:hidden}
.cta-band .container{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;padding-top:90px;padding-bottom:90px}
.cta-band h2{color:var(--white);max-width:640px}
.cta-band h2 span{color:var(--accent)}
.cta-bg{position:absolute;inset:0}
.cta-bg img{width:100%;height:100%;object-fit:cover;opacity:.18}

/* ---------- accordion / FAQ ---------- */
.accordion-item{border-bottom:1px solid var(--border)}
.accordion-btn{
  width:100%;background:none;border:0;cursor:pointer;text-align:left;
  display:flex;justify-content:space-between;align-items:center;gap:24px;
  padding:26px 0;font-family:'Roboto Condensed',sans-serif;font-size:21px;
  text-transform:uppercase;color:var(--dark);font-weight:500;letter-spacing:-.02em;transition:color .3s;
}
.accordion-btn:hover{color:var(--accent)}
.accordion-btn .ic{flex:none;width:30px;height:30px;position:relative}
.accordion-btn .ic::before,.accordion-btn .ic::after{content:'';position:absolute;background:var(--accent);top:50%;left:50%;transition:.3s}
.accordion-btn .ic::before{width:16px;height:2px;transform:translate(-50%,-50%)}
.accordion-btn .ic::after{width:2px;height:16px;transform:translate(-50%,-50%)}
.accordion-item.open .accordion-btn .ic::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.accordion-body{max-height:0;overflow:hidden;transition:max-height .45s var(--ease)}
.accordion-body p{padding:0 0 26px;max-width:860px}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:2fr 3fr;gap:70px;align-items:start}
.contact-info-item{display:flex;gap:20px;padding:26px 0;border-bottom:1px solid var(--border)}
.contact-info-item .ci-ic{flex:none;width:52px;height:52px;background:var(--soft);display:flex;align-items:center;justify-content:center;color:var(--accent);font-size:20px}
.contact-info-item h6{margin-bottom:6px}
.contact-info-item a{color:var(--text);transition:color .3s;display:block}
.contact-info-item a:hover{color:var(--accent)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.form-grid .full{grid-column:1/-1}
.field label{display:block;font-size:14px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--dark);margin-bottom:10px}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--border);background:var(--soft);border-radius:2px;
  padding:16px 18px;font-family:'Albert Sans',sans-serif;font-size:16.5px;color:var(--dark);
  transition:border-color .3s;outline:none;appearance:none;
}
.field textarea{min-height:140px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent);background:var(--white)}
.form-note{font-size:14.5px;margin-top:14px}
.form-status{margin-top:16px;font-weight:600;display:none}
.form-status.ok{display:block;color:#3E8E5A}
.form-status.err{display:block;color:#C0392B}

/* slider captcha */
.captcha-wrap{margin-top:6px}
.captcha-track{position:relative;height:52px;background:var(--soft);border:1px solid var(--border);border-radius:2px;user-select:none;overflow:hidden}
.captcha-fill{position:absolute;left:0;top:0;bottom:0;width:0;background:rgba(198,145,60,.22)}
.captcha-handle{
  position:absolute;left:0;top:0;bottom:0;width:52px;background:var(--accent);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:20px;cursor:grab;touch-action:none;
}
.captcha-label{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:14.5px;letter-spacing:.04em;color:var(--text)}
.captcha-track.done .captcha-handle{background:#3E8E5A;cursor:default}
.captcha-track.done .captcha-label{color:#3E8E5A;font-weight:600}

/* ---------- footer ---------- */
.footer{background:var(--dark);color:rgba(255,255,255,.6);padding:90px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:50px;padding-bottom:70px}
.footer h6{color:var(--white);margin-bottom:22px;letter-spacing:.06em}
.footer-brand img{height:110px;margin-bottom:24px}
.footer-brand p{font-size:16px;max-width:340px}
.footer-list li{margin-bottom:12px}
.footer-list a{font-size:16.5px;transition:color .3s}
.footer-list a:hover{color:var(--accent-soft)}
.footer-contact li{margin-bottom:16px;font-size:16px;display:flex;gap:12px}
.footer-contact li span{color:var(--accent);flex:none}
.footer-contact a{transition:color .3s}
.footer-contact a:hover{color:var(--accent-soft)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:26px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:14.5px}
.footer-bottom a{color:rgba(255,255,255,.75)}
.footer-bottom a:hover{color:var(--accent-soft)}

/* ---------- floating whatsapp ---------- */
.wa-float{
  position:fixed;right:26px;bottom:26px;z-index:90;width:58px;height:58px;border-radius:50%;
  background:#25D366;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 26px rgba(0,0,0,.25);transition:transform .3s;
}
.wa-float:hover{transform:scale(1.08)}
.wa-float svg{width:30px;height:30px;fill:#fff}

/* ---------- lead popup ---------- */
.lead-overlay{position:fixed;inset:0;background:rgba(33,33,33,.7);z-index:200;display:none;align-items:center;justify-content:center;padding:20px}
.lead-overlay.show{display:flex}
.lead-modal{background:var(--white);max-width:470px;width:100%;padding:44px 40px;position:relative;border-top:4px solid var(--accent)}
.lead-close{position:absolute;top:14px;right:18px;background:none;border:0;font-size:26px;cursor:pointer;color:var(--text)}
.lead-modal h4{margin-bottom:8px}
.lead-modal p{font-size:16px;margin-bottom:22px}
.lead-modal .field{margin-bottom:16px}
.lead-modal .btn{width:100%;justify-content:center}

/* ---------- animations ---------- */
.up{opacity:0;transform:translateY(40px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.up.active{opacity:1;transform:translateY(0)}
.d1{transition-delay:.1s}.d2{transition-delay:.2s}.d3{transition-delay:.3s}.d4{transition-delay:.4s}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .up{opacity:1;transform:none}
}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .counters{grid-template-columns:repeat(2,1fr);row-gap:50px}
  .feature-row{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .nav,.header-cta{display:none}
  .burger{display:flex;z-index:101}
  .split,.split-3-2{grid-template-columns:1fr;gap:44px}
  .contact-grid{grid-template-columns:1fr}
  .projects-grid{grid-template-columns:1fr}
  .gallery-grid{grid-template-columns:1fr 1fr}
  .section{padding:84px 0}
}
@media (max-width:600px){
  .container{padding:0 22px}
  .services-grid,.feature-row,.gallery-grid,.form-grid{grid-template-columns:1fr}
  .counters{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:38px}
  .hero-content{padding-bottom:80px}
  .brand-name{display:none}
}