/* ============================================================
   MEP Structures Pvt. Ltd. — Site Stylesheet
   Brand: Navy #0B2740 · Blue #2F7DD1 · Light #EEF1F4 · Ink #1B1D22
   Type:  Archivo (display) · IBM Plex Mono (labels) · Inter (body)
   ============================================================ */

:root{
  --navy:#0B2740;
  --navy-2:#0E3556;
  --blue:#2F7DD1;
  --blue-dark:#256bb8;
  --charcoal:#33363C;
  --slate:#5A6B8A;
  --ink:#1B1D22;
  --muted:#6A6D73;
  --line:#E3E6EA;
  --paper:#EEF1F4;
  --paper-warm:#E7EAEE;
  --white:#FFFFFF;

  --maxw:1180px;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 18px 45px -22px rgba(11,39,64,.35);
  --shadow-sm:0 8px 24px -14px rgba(11,39,64,.30);
  --font-head:"Archivo",system-ui,sans-serif;
  --font-body:"Inter",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,monospace;
  --t:.3s cubic-bezier(.4,0,.2,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{
  font-family:var(--font-body);
  color:var(--charcoal);
  background:var(--white);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

h1,h2,h3,h4,h5{font-family:var(--font-head);color:var(--navy);line-height:1.12;letter-spacing:-.01em}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  font-family:var(--font-head);font-weight:700;font-size:.95rem;
  letter-spacing:.01em;padding:.85em 1.5em;border-radius:999px;
  border:2px solid transparent;cursor:pointer;transition:var(--t);white-space:nowrap;
}
.btn-lg{padding:1em 1.9em;font-size:1rem}
.btn-block{width:100%}
.btn-accent{background:var(--blue);color:#fff;border-color:var(--blue)}
.btn-accent:hover{background:var(--blue-dark);border-color:var(--blue-dark);transform:translateY(-2px);box-shadow:0 12px 28px -12px rgba(47,125,209,.7)}
.btn-ghost{background:transparent;color:var(--navy);border-color:rgba(11,39,64,.25)}
.btn-ghost:hover{border-color:var(--navy);background:var(--navy);color:#fff;transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--navy);border-color:#fff}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 12px 28px -14px rgba(0,0,0,.4)}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  padding:18px 0;transition:var(--t);
}
.site-header.scrolled{background:rgba(255,255,255,.96);backdrop-filter:blur(10px);box-shadow:0 6px 24px -16px rgba(11,39,64,.5);padding:11px 0}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand-logo{height:66px;width:auto;transition:var(--t)}
.site-header.scrolled .brand-logo{height:52px}
.brand-logo--light{display:block}
.brand-logo--dark{display:none}
.site-header.scrolled .brand-logo--light{display:none}
.site-header.scrolled .brand-logo--dark{display:block}

.main-nav{display:flex;align-items:center;gap:30px}
.main-nav a{
  font-family:var(--font-head);font-weight:600;font-size:.95rem;color:#fff;
  position:relative;transition:var(--t);
}
.main-nav a::after{content:"";position:absolute;left:0;bottom:-6px;height:2px;width:0;background:var(--blue);transition:var(--t)}
.main-nav a:hover::after{width:100%}
.site-header.scrolled .main-nav a{color:var(--navy)}
.main-nav .nav-cta{color:#fff!important}
.main-nav .nav-cta::after{display:none}

.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px;z-index:70}
.nav-toggle span{width:26px;height:2.5px;background:#fff;border-radius:2px;transition:var(--t)}
.site-header.scrolled .nav-toggle span{background:var(--navy)}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;color:#fff;overflow:hidden;padding:140px 0 90px}
.hero-bg{position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(1200px 600px at 78% 10%, rgba(47,125,209,.28), transparent 60%),
    linear-gradient(135deg,#0B2740 0%,#0E2E4C 48%,#0B2740 100%);
}
.hero-bg::before{content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:54px 54px;-webkit-mask-image:radial-gradient(circle at 70% 35%,#000,transparent 75%);mask-image:radial-gradient(circle at 70% 35%,#000,transparent 75%);
}
.hero-bg::after{content:"";position:absolute;right:-6%;bottom:-10%;width:520px;height:520px;
  background:linear-gradient(135deg,var(--blue),transparent);opacity:.12;transform:rotate(20deg);border-radius:40px}
.hero-inner{position:relative;z-index:1;max-width:880px}
.eyebrow{font-family:var(--font-mono);font-weight:500;letter-spacing:.22em;text-transform:uppercase;font-size:.76rem;color:#9cc4ee;margin-bottom:22px}
.hero-title{font-size:clamp(2.4rem,6vw,4.4rem);font-weight:800;color:#fff;letter-spacing:-.02em}
.hero-title .accent{color:#7db4ec}
.hero-sub{font-size:clamp(1.05rem,1.7vw,1.3rem);color:#c9d6e4;margin:26px 0 36px;max-width:680px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px}
.hero-strip{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:54px;color:#9fb3c8;font-weight:600;font-size:.95rem}
.hero-strip i{width:6px;height:6px;background:var(--blue);border-radius:50%;display:inline-block}

/* ---------- Stats ---------- */
.stats{background:var(--navy-2);color:#fff;border-top:1px solid rgba(255,255,255,.08)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding:46px 24px}
.stat{text-align:center;padding:14px 16px;border-right:1px solid rgba(255,255,255,.1)}
.stat:last-child{border-right:0}
.stat-num{display:block;font-family:var(--font-head);font-weight:800;font-size:2.4rem;color:#fff;line-height:1}
.stat-label{display:block;margin-top:10px;color:#9fb3c8;font-size:.9rem}

/* ---------- Sections ---------- */
.section{padding:96px 0}
.section-alt{background:var(--paper)}
.section-dark{background:var(--navy);color:#fff}
.section-head{max-width:720px;margin:0 auto 56px;text-align:center}
.section-eyebrow{font-family:var(--font-mono);font-weight:500;letter-spacing:.18em;text-transform:uppercase;font-size:.74rem;color:var(--blue);margin-bottom:14px}
.section-eyebrow.accent{color:#7db4ec}
.section-title{font-size:clamp(1.8rem,3.6vw,2.7rem);font-weight:800}
.section-title.light{color:#fff}
.section-lead{margin-top:18px;font-size:1.1rem;color:var(--muted)}
.section-lead.light{color:#bcd0e4}

/* ---------- About ---------- */
.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.about-copy p{margin-bottom:16px;color:#4a4d54}
.about-points{list-style:none;margin-top:26px;display:grid;gap:14px}
.about-points li{display:flex;align-items:center;gap:12px;font-weight:600;color:var(--navy)}
.about-points svg{flex:none;width:22px;height:22px;fill:none;stroke:var(--blue);stroke-width:3;stroke-linecap:round;stroke-linejoin:round;background:rgba(47,125,209,.12);border-radius:50%;padding:3px}
.about-card{background:linear-gradient(160deg,var(--navy),var(--navy-2));border-radius:var(--radius);padding:6px;box-shadow:var(--shadow)}
.about-card-inner{padding:34px 30px}
.about-card h3{color:#fff;font-size:1.5rem;margin-bottom:8px}
.about-card p{color:#bcd0e4;margin-bottom:20px}
.pill-row{display:grid;gap:14px}
.pill{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-sm);padding:16px 18px}
.pill strong{display:block;color:#7db4ec;font-family:var(--font-head);font-size:1.05rem;margin-bottom:3px}
.pill span{color:#aebfd0;font-size:.92rem}

/* ---------- Service cards ---------- */
.cards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.svc-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px;transition:var(--t)}
.svc-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.svc-ico{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:rgba(47,125,209,.1);margin-bottom:20px}
.svc-ico svg{width:28px;height:28px;fill:none;stroke:var(--blue);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.svc-card h3{font-size:1.22rem;margin-bottom:10px}
.svc-card p{color:var(--muted);font-size:.96rem}

/* ---------- ELV ---------- */
.elv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.elv-item{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-sm);padding:26px 24px;transition:var(--t);position:relative;overflow:hidden}
.elv-item span{font-family:var(--font-mono);font-weight:600;font-size:1rem;color:#3d6c9c}
.elv-item h4{color:#fff;font-size:1.12rem;margin:8px 0 8px}
.elv-item p{color:#9fb3c8;font-size:.92rem}
.elv-item:hover{background:rgba(47,125,209,.14);border-color:var(--blue);transform:translateY(-4px)}
.elv-item::after{content:"";position:absolute;left:0;top:0;height:3px;width:0;background:var(--blue);transition:var(--t)}
.elv-item:hover::after{width:100%}

/* ---------- Sectors ---------- */
.sector-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.sector-card{text-align:center;padding:34px 22px;border-radius:var(--radius);border:1px solid var(--line);transition:var(--t)}
.sector-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.sector-ico{width:64px;height:64px;margin:0 auto 18px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--navy)}
.sector-ico svg{width:30px;height:30px;fill:none;stroke:#7db4ec;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.sector-card h3{font-size:1.15rem;margin-bottom:8px}
.sector-card p{color:var(--muted);font-size:.92rem}

/* ---------- Process ---------- */
.process-line{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.process-line li{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px}
.step-no{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;background:var(--blue);color:#fff;font-family:var(--font-head);font-weight:800;font-size:1.1rem;margin-bottom:16px}
.process-line h4{font-size:1.1rem;margin-bottom:8px}
.process-line p{color:var(--muted);font-size:.93rem}

/* ---------- Why ---------- */
.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.why-list{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.why-item{padding:22px;border-left:3px solid var(--blue);background:var(--paper);border-radius:0 var(--radius-sm) var(--radius-sm) 0}
.why-item h4{font-size:1.08rem;margin-bottom:7px}
.why-item p{color:var(--muted);font-size:.93rem}

/* ---------- CTA band ---------- */
.cta-band{background:linear-gradient(120deg,var(--navy),var(--navy-2));color:#fff;padding:74px 0}
.cta-inner{text-align:center;max-width:760px;margin:0 auto}
.cta-band h2{color:#fff;font-size:clamp(1.7rem,3.2vw,2.4rem)}
.cta-band p{color:#bcd0e4;margin:14px 0 30px;font-size:1.1rem}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:start}
.contact-list{list-style:none;margin:30px 0 26px;display:grid;gap:20px}
.contact-list li{display:flex;gap:16px;align-items:flex-start}
.ci-ico{flex:none;width:46px;height:46px;border-radius:12px;background:rgba(47,125,209,.1);display:flex;align-items:center;justify-content:center}
.ci-ico svg{width:22px;height:22px;fill:none;stroke:var(--blue);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.contact-list strong{color:var(--navy);font-family:var(--font-head)}
.contact-list a:hover{color:var(--blue)}
.contact-quick{display:flex;gap:14px;flex-wrap:wrap}

.contact-form-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow-sm)}
.field{margin-bottom:18px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field label{display:block;font-weight:600;font-size:.88rem;color:var(--navy);margin-bottom:7px;font-family:var(--font-head)}
.field input,.field textarea{
  width:100%;padding:13px 15px;border:1.5px solid var(--line);border-radius:var(--radius-sm);
  font-family:var(--font-body);font-size:.97rem;color:var(--ink);background:var(--paper);transition:var(--t);resize:vertical;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--blue);background:#fff;box-shadow:0 0 0 4px rgba(47,125,209,.12)}
.form-note{margin-top:14px;font-size:.92rem;font-weight:600;min-height:1.2em}
.form-note.ok{color:#2C6A45}
.form-note.err{color:#c0392b}

.map-wrap{margin-top:64px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.map-wrap iframe{width:100%;height:380px;border:0;display:block;filter:grayscale(.2)}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy);color:#aebfd0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding:64px 24px 44px}
.footer-logo{height:74px;width:auto;margin-bottom:18px}
.footer-brand p{color:#9fb3c8;font-size:.95rem;max-width:320px}
.footer-est{display:inline-block;margin-top:16px;font-family:var(--font-mono);font-weight:500;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:#7db4ec;border:1px solid rgba(125,180,236,.3);padding:6px 12px;border-radius:999px}
.footer-col h5{color:#fff;font-size:.95rem;letter-spacing:.04em;margin-bottom:16px;text-transform:uppercase}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col a{color:#aebfd0;font-size:.93rem;transition:var(--t)}
.footer-col a:hover{color:#7db4ec}
.footer-contact li{font-size:.93rem;line-height:1.6}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1)}
.footer-bottom-inner{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:22px 24px;font-size:.82rem;color:#7e93a8}
.footer-tag{font-family:var(--font-mono);font-weight:500;letter-spacing:.1em;color:#5f7691}

/* ---------- WhatsApp FAB ---------- */
.fab-wa{position:fixed;right:22px;bottom:22px;z-index:80;width:58px;height:58px;border-radius:50%;
  background:#25D366;color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:0 12px 30px -8px rgba(37,211,102,.6);transition:var(--t)}
.fab-wa svg{width:32px;height:32px}
.fab-wa:hover{transform:scale(1.08) translateY(-2px)}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- Mobile menu open state ---------- */
body.nav-open{overflow:hidden}

/* ============ RESPONSIVE ============ */
@media (max-width:992px){
  .about-grid,.why-grid,.contact-grid{grid-template-columns:1fr;gap:38px}
  .cards-grid,.elv-grid,.process-line{grid-template-columns:repeat(2,1fr)}
  .sector-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px 10px}
  .stat:nth-child(2){border-right:0}
  .footer-grid{grid-template-columns:1fr 1fr}
  .why-list{grid-template-columns:1fr}
}
@media (max-width:760px){
  html{scroll-padding-top:70px}
  .section{padding:68px 0}
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;inset:0 0 0 auto;width:min(82vw,340px);background:var(--navy);
    flex-direction:column;align-items:flex-start;justify-content:center;gap:26px;padding:40px;
    transform:translateX(100%);transition:transform .4s cubic-bezier(.4,0,.2,1);box-shadow:-20px 0 60px -20px rgba(0,0,0,.6);
  }
  .main-nav.open{transform:translateX(0)}
  .main-nav a{color:#fff!important;font-size:1.15rem}
  .main-nav a::after{display:none}
  .nav-toggle.active span{background:#fff}
  .nav-toggle.active span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
  .nav-toggle.active span:nth-child(2){opacity:0}
  .nav-toggle.active span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}
  .hero{padding:120px 0 70px;min-height:auto}
  .hero-strip{gap:12px;font-size:.85rem}
  .field-row{grid-template-columns:1fr}
  .footer-bottom-inner{flex-direction:column;text-align:center}
  .footer-tag{font-size:.7rem}
}
@media (max-width:480px){
  .cards-grid,.elv-grid,.process-line,.sector-grid,.stats-grid,.footer-grid{grid-template-columns:1fr}
  .container{padding:0 18px}
  .contact-form-wrap{padding:24px}
  .stat{border-right:0;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:22px}
  .stat:last-child{border-bottom:0}
}

@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}