/* ==========================================================================
   Gaurav Infrastructure — redesign
   Tokens: steel navy + safety amber, on cool concrete grey.
   Display: Barlow Condensed (signage/stencil feel)
   Body: Barlow
   Data/labels: Roboto Mono (spec-plate / rivet-plate motif)
   ========================================================================== */

:root{
  --navy: #0E2338;
  --navy-2: #16344F;
  --navy-3: #0A1B2B;
  --charcoal: #1B1E20;
  --concrete: #E9EBE9;
  --concrete-dark: #DBDED9;
  --white: #FFFFFF;
  --amber: #F2A31D;
  --amber-dark: #C97F0E;
  --line: #CBD0CC;
  --line-dark: rgba(255,255,255,.16);

  --font-display: 'Barlow Condensed', sans-serif;
  --font-body: 'Barlow', sans-serif;
  --font-mono: 'Roboto Mono', monospace;

  --container: 1200px;
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--font-body);
  color: var(--charcoal);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ margin:0; font-family: var(--font-display); font-weight:700; line-height:1.05; letter-spacing:.01em; }
p{ margin:0; }
button{ font-family: inherit; cursor:pointer; }

.container{ max-width: var(--container); margin:0 auto; padding:0 28px; }

/* focus visibility */
a:focus-visible, button:focus-visible{ outline: 2px solid var(--amber); outline-offset: 3px; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}

/* ---------- utility: eyebrow / spec label ---------- */
.eyebrow{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--amber-dark);
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom: 14px;
}
.eyebrow::before{
  content:"";
  width: 22px; height: 2px;
  background: var(--amber);
  display:inline-block;
}
.eyebrow.on-dark{ color: var(--amber); }

.section{ padding: 96px 0; }
.section-tight{ padding: 64px 0; }
@media (max-width: 780px){
  .section{ padding: 64px 0; }
}

.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing:.06em;
  text-transform: uppercase;
  padding: 15px 26px;
  border: 1px solid transparent;
  transition: transform .15s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn svg{ width:14px; height:14px; }
.btn-amber{ background: var(--amber); color: var(--navy-3); }
.btn-amber:hover{ background: var(--white); }
.btn-outline{ border-color: var(--line-dark); color: var(--white); }
.btn-outline:hover{ border-color: var(--amber); color: var(--amber); }
.btn-outline-dark{ border-color: var(--charcoal); color: var(--charcoal); }
.btn-outline-dark:hover{ border-color: var(--navy); background: var(--navy); color:var(--white); }

/* ==========================================================================
   Header
   ========================================================================== */
.topbar{
  background: var(--navy-3);
  color: rgba(255,255,255,.75);
  font-family: var(--font-mono);
  font-size: 12.5px;
}
.topbar .container{ display:flex; align-items:center; justify-content:space-between; padding-top:9px; padding-bottom:9px; flex-wrap:wrap; gap:8px; }
.topbar__contact{ display:flex; gap:26px; flex-wrap:wrap; }
.topbar__contact a{ color: rgba(255,255,255,.85); }
.topbar__contact a:hover{ color: var(--amber); }
.topbar__social{ display:flex; gap:16px; }
.topbar__social a{ color: rgba(255,255,255,.6); font-size:13px; }
.topbar__social a:hover{ color: var(--amber); }

.site-header{
  background: var(--navy);
  position: sticky; top:0; z-index: 100;
  border-bottom: 1px solid var(--line-dark);
}
.site-header .container{ display:flex; align-items:center; justify-content:space-between; height: 82px; }
.brand{ display:flex; align-items:center; gap:12px; color: var(--white); }
.brand__mark{
  width:40px; height:40px; border:2px solid var(--amber);
  display:flex; align-items:center; justify-content:center;
  font-family: var(--font-display); font-weight:800; font-size:20px; color:var(--amber);
  flex-shrink:0;
}
.brand__logo-wrap{
  background: var(--white); padding:6px 10px; display:flex; align-items:center; justify-content:center;
  border-radius: 6px; flex-shrink:0;
}
.brand__logo{ height:46px; width:auto; display:block; }
@media (max-width: 560px){
  .brand__logo{ height:36px; }
  .brand__logo-wrap{ padding:4px 7px; }
}
.brand__text{ font-family: var(--font-display); line-height:1.05; }
.brand__text b{ display:block; font-size:19px; letter-spacing:.02em; text-transform:uppercase; color:var(--white); }
.brand__text span{ display:block; font-family: var(--font-mono); font-size:10.5px; letter-spacing:.18em; color: var(--amber); text-transform:uppercase; }

.nav{ display:flex; align-items:center; gap:38px; }
.nav a{
  font-family: var(--font-mono); font-size:12.5px; letter-spacing:.08em; text-transform:uppercase;
  color: rgba(255,255,255,.78); position:relative; padding: 6px 0;
}
.nav a::after{
  content:""; position:absolute; left:0; bottom:0; width:0; height:2px; background: var(--amber);
  transition: width .2s ease;
}
.nav a:hover, .nav a.is-active{ color: var(--white); }
.nav a:hover::after, .nav a.is-active::after{ width:100%; }

.header-actions{ display:flex; align-items:center; gap:20px; }
.header-actions .btn{ padding: 12px 20px; }
.nav-toggle{
  display:none; background:none; border:none; color:var(--white); width:32px; height:22px;
  position:relative;
}
.nav-toggle span, .nav-toggle::before, .nav-toggle::after{
  content:""; display:block; position:absolute; left:0; right:0; height:2px; background: var(--white);
}
.nav-toggle span{ top:10px; }
.nav-toggle::before{ top:2px; }
.nav-toggle::after{ bottom:2px; }

@media (max-width: 940px){
  .nav{
    position:absolute; top:82px; left:0; right:0; background: var(--navy);
    flex-direction:column; align-items:flex-start; gap:0; border-top:1px solid var(--line-dark);
    max-height:0; overflow:hidden; transition: max-height .25s ease;
  }
  .nav.is-open{ max-height:400px; }
  .nav a{ width:100%; padding: 16px 28px; border-bottom:1px solid var(--line-dark); }
  .nav a::after{ display:none; }
  .header-actions .btn-text{ display:none; }
  .nav-toggle{ display:block; }
}
@media (max-width: 560px){
  .topbar__contact li:nth-child(3){ display:none; }
  .brand__text b{ font-size:15px; }
  .brand__text span{ font-size:9px; }
  .brand__mark{ width:34px; height:34px; font-size:17px; }
  .site-header .container{ height:70px; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{
  position:relative;
  min-height: 88vh;
  display:flex; align-items:flex-end;
  background: var(--navy-3);
  overflow:hidden;
}
.hero__img{ position:absolute; inset:0; }
.hero__img-slide{
  position:absolute; inset:0; width:100%; height:100%; object-fit:cover;
  opacity:0; transition: opacity 1.2s ease;
}
.hero__img-slide.is-active{ opacity:.7; }
.hero__img::after{
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(10,27,43,.42) 0%, rgba(10,27,43,.45) 40%, var(--navy-3) 96%),
              linear-gradient(90deg, rgba(10,27,43,.85) 0%, rgba(10,27,43,.25) 62%);
}
.hero__inner{ position:relative; z-index:2; width:100%; padding-bottom: 0; }
.hero__content{ max-width: 760px; padding-top: 160px; padding-bottom:64px; }
.hero__title{
  font-size: clamp(40px, 6vw, 72px);
  color: var(--white);
  text-transform: uppercase;
  margin-bottom: 22px;
}
.hero__title em{ font-style:normal; color: var(--amber); }
.hero__desc{ color: rgba(255,255,255,.8); font-size:17px; max-width:560px; margin-bottom:36px; }
.hero__cta{ display:flex; gap:16px; flex-wrap:wrap; }

.spec-plate{
  position:relative; z-index:2;
  background: var(--navy-2);
  border-top: 1px solid var(--line-dark);
}
.spec-plate .container{
  display:grid; grid-template-columns: repeat(4,1fr);
}
.spec-plate__item{
  padding: 26px 28px;
  border-left: 1px solid var(--line-dark);
}
.spec-plate__item:first-child{ border-left:none; padding-left:0; }
.spec-plate__num{ font-family: var(--font-mono); font-size: clamp(22px,2.4vw,30px); color: var(--amber); }
.spec-plate__label{ font-family: var(--font-mono); font-size:11px; letter-spacing:.08em; text-transform:uppercase; color: rgba(255,255,255,.6); margin-top:4px; }

@media (max-width: 780px){
  .spec-plate .container{ grid-template-columns: repeat(2,1fr); }
  .spec-plate__item:nth-child(3){ border-left:none; padding-left:0; }
}

/* ==========================================================================
   About / split section
   ========================================================================== */
.split{ display:grid; grid-template-columns: 1fr 1fr; gap:70px; align-items:center; }
@media (max-width: 900px){ .split{ grid-template-columns:1fr; gap:44px; } }
.split__title{ font-size: clamp(30px,3.6vw,44px); text-transform:uppercase; margin-bottom:22px; }
.split__body p{ color:#4A4F52; margin-bottom:20px; font-size:15.5px; }

.tag-grid{ display:flex; flex-wrap:wrap; gap:10px; margin-top:26px; }
.tag-chip{
  font-family: var(--font-mono); font-size:12px; letter-spacing:.04em;
  border:1px solid var(--line); padding:9px 14px; color:#3C4144;
}

.frame-photo{ position:relative; }
.frame-photo img{ width:100%; height:520px; object-fit:cover; }
.frame-photo::before{
  content:""; position:absolute; top:-14px; left:-14px; width:46px; height:46px;
  border-top:2px solid var(--amber); border-left:2px solid var(--amber);
}
.frame-photo::after{
  content:""; position:absolute; bottom:-14px; right:-14px; width:46px; height:46px;
  border-bottom:2px solid var(--amber); border-right:2px solid var(--amber);
}
.frame-photo__tag{
  position:absolute; left:24px; bottom:24px; background: var(--navy);
  color:var(--white); padding:16px 20px; max-width:280px;
  font-family: var(--font-mono); font-size:12px; line-height:1.6;
  border-left:3px solid var(--amber);
}

/* ==========================================================================
   Services — "site index" grid, blueprint corner marks
   ========================================================================== */
.section-head{ display:flex; justify-content:space-between; align-items:flex-end; gap:24px; margin-bottom: 56px; flex-wrap:wrap; }
.section-head__title{ font-size: clamp(30px,3.6vw,44px); text-transform:uppercase; max-width:640px; }
.section-head p{ color:#5B6063; max-width:360px; font-size:14.5px; }

.services-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap:1px; background: var(--line); border:1px solid var(--line); }
@media (max-width: 900px){ .services-grid{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 600px){ .services-grid{ grid-template-columns: 1fr; } }

.service-card{
  background: var(--white); padding: 38px 32px; position:relative;
  transition: background .2s ease;
}
.service-card:hover{ background: var(--concrete); }
.service-card::before{
  content:""; position:absolute; top:14px; right:14px; width:14px; height:14px;
  border-top:1.5px solid var(--amber); border-right:1.5px solid var(--amber); opacity:.7;
}
.service-card__icon{ width:44px; height:44px; margin-bottom:22px; color: var(--navy); }
.service-card__icon svg{ width:100%; height:100%; }
.service-card__title{ font-family: var(--font-display); font-size:22px; text-transform:uppercase; margin-bottom:10px; letter-spacing:.01em; }
.service-card__desc{ font-size:14px; color:#5B6063; }
.service-card__tag{ font-family: var(--font-mono); font-size:10.5px; color: var(--amber-dark); letter-spacing:.1em; text-transform:uppercase; display:block; margin-bottom:14px; }

/* ==========================================================================
   Trust / quality band (dark, split with image)
   ========================================================================== */
.trust{ background: var(--navy-3); color: var(--white); position:relative; overflow:hidden; }
.trust::before{
  content:""; position:absolute; inset:0; opacity:.06; pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.6) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.6) 1px, transparent 1px);
  background-size: 46px 46px;
}
.trust__grid{ position:relative; display:grid; grid-template-columns: .9fr 1.1fr; gap:0; }
@media (max-width: 900px){ .trust__grid{ grid-template-columns:1fr; } }
.trust__img{ position:relative; min-height:420px; }
.trust__img img{ width:100%; height:100%; object-fit:cover; position:absolute; inset:0; }
.trust__content{ padding: 80px 60px; }
@media (max-width: 640px){ .trust__content{ padding: 56px 26px; } }
.trust__title{ font-size: clamp(28px,3.2vw,38px); text-transform:uppercase; margin-bottom:24px; max-width:480px; }
.trust__list{ display:grid; gap:26px; margin-top: 34px; }
.trust__list li{ display:flex; gap:18px; }
.trust__list .n{ font-family: var(--font-mono); color: var(--amber); font-size:13px; padding-top:3px; flex-shrink:0; }
.trust__list h4{ font-size:18px; text-transform:uppercase; font-family:var(--font-display); margin-bottom:6px; letter-spacing:.02em; }
.trust__list p{ color: rgba(255,255,255,.65); font-size:14px; }

.rating-row{ display:flex; align-items:center; gap:16px; margin-top:40px; flex-wrap:wrap; }
.rating-row .stars{ color: var(--amber); letter-spacing:2px; }
.rating-row span{ font-family: var(--font-mono); font-size:12.5px; color: rgba(255,255,255,.7); }

/* ==========================================================================
   Stats band
   ========================================================================== */
.stats{ background: var(--amber); }
.stats .container{ display:grid; grid-template-columns: repeat(3,1fr); }
@media (max-width: 700px){ .stats .container{ grid-template-columns:1fr; } }
.stat{ padding: 52px 30px; border-left: 1px solid rgba(10,27,43,.18); text-align:center; }
.stat:first-child{ border-left:none; }
.stat__num{ font-family: var(--font-display); font-size: clamp(40px,5vw,60px); color: var(--navy-3); line-height:1; }
.stat__label{ font-family: var(--font-mono); font-size:11.5px; letter-spacing:.08em; text-transform:uppercase; color: var(--navy-3); margin-top:10px; opacity:.75; }

/* ==========================================================================
   Sector / project cards
   ========================================================================== */
.sector-grid{ display:grid; grid-template-columns: repeat(4,1fr); gap:24px; }
@media (max-width: 980px){ .sector-grid{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 560px){ .sector-grid{ grid-template-columns: 1fr; } }
.sector-card{ position:relative; height:340px; overflow:hidden; }
.sector-card img{ width:100%; height:100%; object-fit:cover; transition: transform .5s ease; }
.sector-card:hover img{ transform: scale(1.06); }
.sector-card::after{
  content:""; position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(10,27,43,0) 40%, rgba(10,27,43,.92) 100%);
}
.sector-card__body{ position:absolute; left:0; right:0; bottom:0; padding:24px; z-index:2; color:var(--white); }
.sector-card__tag{ font-family: var(--font-mono); font-size:10.5px; letter-spacing:.12em; text-transform:uppercase; color: var(--amber); display:block; margin-bottom:8px; }
.sector-card__title{ font-family: var(--font-display); font-size:22px; text-transform:uppercase; }

/* ==========================================================================
   CTA band
   ========================================================================== */
.cta-band{ background: var(--navy); color:var(--white); }
.cta-band .container{ display:flex; align-items:center; justify-content:space-between; gap:30px; flex-wrap:wrap; padding:64px 28px; }
.cta-band__title{ font-size: clamp(26px,3.2vw,36px); text-transform:uppercase; max-width:520px; }
.cta-band__actions{ display:flex; gap:16px; flex-wrap:wrap; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer{ background: var(--navy-3); color: rgba(255,255,255,.65); }
.footer-top{ padding: 70px 0 50px; display:grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap:40px; }
@media (max-width: 900px){ .footer-top{ grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px){ .footer-top{ grid-template-columns: 1fr; } }
.footer-brand p{ margin-top:18px; font-size:14px; line-height:1.7; max-width:280px; }
.footer-col h5{ font-family: var(--font-mono); font-size:11.5px; letter-spacing:.12em; text-transform:uppercase; color: var(--white); margin-bottom:20px; }
.footer-col li{ margin-bottom:12px; font-size:14px; }
.footer-col a:hover{ color: var(--amber); }
.footer-social{ display:flex; gap:14px; margin-top:20px; }
.footer-social a{ width:36px; height:36px; border:1px solid var(--line-dark); display:flex; align-items:center; justify-content:center; font-size:13px; }
.footer-social a:hover{ border-color: var(--amber); color: var(--amber); }
.footer-bottom{ border-top:1px solid var(--line-dark); padding:22px 0; font-family: var(--font-mono); font-size:11.5px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; }

/* ==========================================================================
   Page title (about/contact interior header)
   ========================================================================== */
.page-title{ position:relative; background: var(--navy-3); padding: 150px 0 60px; overflow:hidden; }
.page-title::before{
  content:""; position:absolute; inset:0; opacity:.08;
  background-image: linear-gradient(rgba(255,255,255,.6) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.6) 1px, transparent 1px);
  background-size: 46px 46px;
}
.page-title .container{ position:relative; }
.page-title__crumb{ font-family: var(--font-mono); font-size:12px; letter-spacing:.1em; text-transform:uppercase; color: var(--amber); margin-bottom:16px; }
.page-title h1{ font-size: clamp(34px,5vw,54px); color:var(--white); text-transform:uppercase; }

/* reveal on scroll */
.reveal{ opacity:0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible{ opacity:1; transform:none; }

/* ==========================================================================
   Contact page bits
   ========================================================================== */
.contact-grid{ display:grid; grid-template-columns: .85fr 1.15fr; gap:60px; }
@media (max-width: 900px){ .contact-grid{ grid-template-columns:1fr; } }
.contact-card{ border:1px solid var(--line); padding:28px; margin-bottom:18px; }
.contact-card h4{ font-family:var(--font-display); font-size:18px; text-transform:uppercase; margin-bottom:8px; }
.contact-card p, .contact-card a{ font-size:14.5px; color:#4A4F52; }

.field{ margin-bottom:20px; }
.field label{ display:block; font-family: var(--font-mono); font-size:11px; letter-spacing:.08em; text-transform:uppercase; margin-bottom:8px; color:#3C4144; }
.field input, .field textarea{
  width:100%; border:1px solid var(--line); background: var(--white); padding:14px 16px;
  font-family: var(--font-body); font-size:14.5px; color: var(--charcoal);
}
.field input:focus, .field textarea:focus{ outline:none; border-color: var(--navy); }
.field-row{ display:grid; grid-template-columns: 1fr 1fr; gap:20px; }
@media (max-width:560px){ .field-row{ grid-template-columns:1fr; } }

.map-frame{ border:1px solid var(--line); height:340px; overflow:hidden; margin-top:10px; }
.map-frame iframe{ width:100%; height:100%; border:0; filter: grayscale(.3); }

/* ==========================================================================
   Floating WhatsApp button
   ========================================================================== */
.whatsapp-float{
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 58px;
  height: 58px;
  background: #25D366;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 18px rgba(0,0,0,.25);
  z-index: 999;
  transition: transform .18s ease, box-shadow .18s ease;
}
.whatsapp-float svg{ width: 30px; height: 30px; }
.whatsapp-float:hover{
  transform: scale(1.08);
  box-shadow: 0 8px 22px rgba(0,0,0,.32);
}
@media (max-width: 560px){
  .whatsapp-float{ right: 16px; bottom: 16px; width: 52px; height: 52px; }
  .whatsapp-float svg{ width: 26px; height: 26px; }
}