/* ===== Odisha Trenchless — shared styles ===== */
:root{
  --navy:#0b2340; --navy2:#12335c; --accent:#f5a623; --accent2:#e08b00;
  --ink:#1a2430; --muted:#5a6b7b; --line:#e6ebf1; --bg:#ffffff; --soft:#f5f8fb;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:var(--ink);line-height:1.65;background:var(--bg);overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
h1,h2,h3,h4{line-height:1.18;color:var(--navy);font-weight:800}
h2{font-size:34px}
p{color:var(--ink)}
.eyebrow{color:var(--accent2);font-weight:800;letter-spacing:2px;text-transform:uppercase;font-size:12.5px;margin-bottom:12px}
.sec{padding:86px 0}
.center{text-align:center}
.lead{color:var(--muted);font-size:18px;max-width:620px}
.center .lead{margin-left:auto;margin-right:auto}
.btn{display:inline-block;background:var(--accent);color:#1a1a1a;font-weight:700;padding:14px 30px;border-radius:6px;transition:.2s;border:none;cursor:pointer;font-size:15px}
.btn:hover{background:var(--accent2);color:#fff}
.btn-ghost{background:transparent;border:2px solid #fff;color:#fff}
.btn-ghost:hover{background:#fff;color:var(--navy)}
.btn-dark{background:var(--navy)}.btn-dark:hover{background:var(--navy2);color:#fff}

/* ---- top bar ---- */
.topbar{background:var(--navy);color:#c9d6e6;font-size:13.5px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;padding:9px 24px;flex-wrap:wrap;gap:6px}
.topbar a{color:#fff;font-weight:600}

/* ---- header / nav ---- */
header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 2px 14px rgba(0,0,0,.04)}
nav{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;max-width:1180px;margin:0 auto}
.logo{font-weight:900;font-size:23px;color:var(--navy);letter-spacing:.3px}
.logo span{color:var(--accent2)}
.navlinks{display:flex;gap:30px;align-items:center}
.navlinks a{font-weight:600;font-size:15px;color:var(--ink)}
.navlinks a:hover,.navlinks a.active{color:var(--accent2)}
.navlinks .btn{color:#1a1a1a}.navlinks .btn:hover{color:#fff}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.burger span{width:26px;height:3px;background:var(--navy);border-radius:2px;transition:.25s}

/* ---- hero (background image + overlay) ---- */
.hero{position:relative;min-height:74vh;display:flex;align-items:center;color:#fff;background:linear-gradient(135deg,var(--navy),var(--navy2));background-size:cover;background-position:center;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(8,24,45,.88) 0%,rgba(8,24,45,.68) 55%,rgba(8,24,45,.45) 100%)}
.hero .wrap{position:relative;z-index:2;padding:90px 24px}
.hero h1{color:#fff;font-size:52px;max-width:860px;letter-spacing:-.5px}
.hero p{color:#dbe4ef;font-size:20px;max-width:620px;margin:22px 0 8px}
.hero .cta{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}
.badge-pill{display:inline-flex;align-items:center;gap:9px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);padding:8px 16px;border-radius:30px;font-size:13.5px;margin-bottom:20px}
.badge-pill b{color:var(--accent)}

/* page banner (interior pages) */
.banner{position:relative;color:#fff;background:linear-gradient(135deg,var(--navy),var(--navy2));background-size:cover;background-position:center}
.banner::before{content:"";position:absolute;inset:0;background:rgba(8,24,45,.72)}
.banner .wrap{position:relative;z-index:2;padding:74px 24px}
.banner h1{color:#fff;font-size:40px}
.banner p{color:#dbe4ef;margin-top:10px;max-width:640px}

/* ---- stats ---- */
.stats{background:var(--accent)}
.stats .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:34px 24px;text-align:center}
.stats .n{font-size:36px;font-weight:900;color:var(--navy)}
.stats .l{font-size:13.5px;font-weight:700;color:#3a2c00}

/* ---- feature split (image + text) ---- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split.rev .txt{order:2}
.split .media{border-radius:14px;overflow:hidden;min-height:360px;background:linear-gradient(135deg,var(--navy2),#24507e);background-size:cover;background-position:center;box-shadow:0 20px 50px rgba(11,35,64,.18)}
.split ul{list-style:none;margin-top:18px}
.split li{padding:9px 0 9px 30px;position:relative}
.split li::before{content:"✔";position:absolute;left:0;color:var(--accent2);font-weight:900}

/* ---- service cards ---- */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:44px}
.card{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff;transition:.2s}
.card:hover{box-shadow:0 16px 40px rgba(11,35,64,.12);transform:translateY(-5px)}
.card .cimg{height:190px;background:linear-gradient(135deg,var(--navy2),#2b5885);background-size:cover;background-position:center}
.card .cbody{padding:26px}
.card h3{font-size:20px;margin-bottom:9px}
.card p{color:var(--muted);font-size:15px}
.tags{margin-top:14px;display:flex;flex-wrap:wrap;gap:7px}
.tag{font-size:12px;background:var(--soft);color:var(--navy2);padding:5px 11px;border-radius:20px;font-weight:600}

/* ---- projects gallery ---- */
.pgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px}
.pcard{position:relative;border-radius:14px;overflow:hidden;min-height:280px;background:linear-gradient(135deg,var(--navy2),#24507e);background-size:cover;background-position:center;display:flex;align-items:flex-end;color:#fff;box-shadow:0 10px 30px rgba(11,35,64,.14)}
.pcard::before{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(6,20,38,.9),rgba(6,20,38,.05) 65%)}
.pcard .pinfo{position:relative;z-index:2;padding:24px}
.pcard .ptag{display:inline-block;background:var(--accent);color:#1a1a1a;font-size:11px;font-weight:800;padding:4px 10px;border-radius:20px;margin-bottom:10px;text-transform:uppercase;letter-spacing:.5px}
.pcard h3{color:#fff;font-size:19px}
.pcard p{color:#cdd8e6;font-size:13.5px;margin-top:4px}

/* ---- sectors ---- */
.sectors{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px;justify-content:center}
.sector{background:#fff;border:1px solid var(--line);padding:13px 24px;border-radius:8px;font-weight:600;color:var(--navy2)}
.soft{background:var(--soft)}

/* ---- process steps ---- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:44px}
.step{text-align:center}
.step .num{width:52px;height:52px;border-radius:50%;background:var(--navy);color:#fff;font-weight:900;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:20px}
.step h4{margin-bottom:6px}
.step p{color:var(--muted);font-size:14px}

/* ---- CTA band ---- */
.band{position:relative;color:#fff;text-align:center;background:linear-gradient(135deg,var(--navy2),var(--navy));background-size:cover;background-position:center}
.band::before{content:"";position:absolute;inset:0;background:rgba(8,24,45,.8)}
.band .wrap{position:relative;z-index:2}
.band h2{color:#fff;font-size:32px}
.band p{color:#dbe4ef;margin:14px 0 26px;font-size:18px}

/* ---- contact ---- */
form input,form textarea{width:100%;padding:14px;border:1px solid var(--line);border-radius:8px;margin-bottom:14px;font-family:inherit;font-size:15px}
form textarea{min-height:120px;resize:vertical}
form button{width:100%}
.reach{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:30px}
.reach-item{display:flex;align-items:center;gap:12px;background:var(--soft);border:1px solid var(--line);padding:15px 24px;border-radius:10px;transition:.2s;text-align:left}
.reach-item:hover{border-color:var(--accent);box-shadow:0 8px 20px rgba(11,35,64,.08)}
.reach-item .ic{font-size:22px;display:flex}
.reach-item b{display:block;color:var(--navy);font-size:14px}
.reach-item div span:last-child,.reach-item .val{color:var(--muted);font-size:14px;font-weight:600}

/* ---- footer ---- */
footer{background:var(--navy);color:#a9b9cd;font-size:14px;padding:52px 0 24px}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1.4fr;gap:34px}
footer h4{color:#fff;margin-bottom:14px;font-size:16px}
footer a{color:#a9b9cd}footer a:hover{color:#fff}
footer .flogo{font-size:21px;font-weight:900;color:#fff}
footer .flogo span{color:var(--accent)}
footer p{color:#a9b9cd;margin-bottom:7px}
.copy{border-top:1px solid rgba(255,255,255,.12);margin-top:32px;padding-top:20px;text-align:center;color:#7f93ab}

/* ---- whatsapp float ---- */
.wa{position:fixed;right:20px;bottom:20px;background:#25d366;width:58px;height:58px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(0,0,0,.28);z-index:90}

/* ===== responsive ===== */
@media(max-width:900px){
  .split{grid-template-columns:1fr;gap:30px}
  .split.rev .txt{order:0}
  .grid3{grid-template-columns:1fr 1fr}
  .pgrid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  .burger{display:flex}
  .navlinks{position:fixed;top:0;right:-100%;height:100vh;width:74%;max-width:320px;background:#fff;flex-direction:column;align-items:flex-start;gap:0;padding:80px 30px 30px;box-shadow:-10px 0 40px rgba(0,0,0,.15);transition:right .28s ease;z-index:95}
  .navlinks.open{right:0}
  .navlinks a{width:100%;padding:14px 0;border-bottom:1px solid var(--line);font-size:16px}
  .navlinks .btn{margin-top:16px;width:100%;text-align:center;border-bottom:none}
  .burger.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
  .burger.open span:nth-child(2){opacity:0}
  .burger.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
  footer .cols{grid-template-columns:1fr;gap:26px}
}
@media(max-width:640px){
  .sec{padding:54px 0}
  .wrap{padding:0 18px}
  h2{font-size:26px}
  .topbar .wrap{flex-direction:column;align-items:center;text-align:center;gap:3px;font-size:12.5px;padding:9px 18px}
  .hero{min-height:auto}
  .hero .wrap{padding:60px 18px}
  .hero h1{font-size:33px}
  .hero p{font-size:16.5px}
  .hero .cta{gap:10px}
  .hero .cta .btn{flex:1;text-align:center;padding:14px 12px}
  .banner .wrap{padding:52px 18px}
  .banner h1{font-size:30px}
  .stats .wrap{grid-template-columns:1fr 1fr;gap:16px;padding:26px 18px}
  .stats .n{font-size:29px}
  .grid3,.pgrid,.steps{grid-template-columns:1fr}
  .lead{font-size:16.5px}
  .reach-item{width:100%;justify-content:center}
  .band h2{font-size:25px}
  .wa{width:52px;height:52px;right:16px;bottom:16px}
}