/* Radiant Engineering Company — Stylesheet (elegant, professional, responsive) */
:root{
  --navy:#0e2a3b; --navy-2:#123a52; --teal:#12a37f; --teal-dark:#0e8467;
  --gold:#c9a24b; --ink:#1c2b34; --muted:#5b6b78; --line:#e6ebee;
  --bg:#ffffff; --bg-soft:#f5f8f9; --bg-soft-2:#eef4f3;
  --shadow:0 10px 30px rgba(14,42,59,.08); --shadow-lg:0 20px 50px rgba(14,42,59,.14);
  --radius:16px; --maxw:1180px;
  --font:"Poppins","Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.2;font-weight:700;color:var(--navy)}
h1{font-size:clamp(2rem,5vw,3.4rem)}
h2{font-size:clamp(1.6rem,3.5vw,2.5rem)}
h3{font-size:1.25rem}
p{margin:0 0 1rem}
.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.section{padding:84px 0}
.section-soft{background:var(--bg-soft)}
.center{text-align:center}
.eyebrow{display:inline-block;color:var(--teal);font-weight:600;letter-spacing:.14em;text-transform:uppercase;font-size:.8rem;margin-bottom:.6rem}
.lead{color:var(--muted);font-size:1.05rem;max-width:680px}
.center .lead{margin-left:auto;margin-right:auto}
.btn{display:inline-flex;align-items:center;gap:.5rem;justify-content:center;padding:14px 30px;border-radius:50px;font-weight:600;font-size:.98rem;cursor:pointer;border:2px solid transparent;transition:.25s;white-space:nowrap}
.btn-primary{background:var(--teal);color:#fff}
.btn-primary:hover{background:var(--teal-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(18,163,127,.3)}
.btn-outline{border-color:rgba(255,255,255,.6);color:#fff}
.btn-outline:hover{background:#fff;color:var(--navy)}
.btn-ghost{border-color:var(--teal);color:var(--teal)}
.btn-ghost:hover{background:var(--teal);color:#fff}
.btn-gold{background:var(--gold);color:#1a1200}
.btn-gold:hover{filter:brightness(1.06);transform:translateY(-2px)}
.topbar{background:var(--navy);color:#cfe0e6;font-size:.85rem}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:14px;min-height:42px;flex-wrap:wrap}
.topbar a{color:#dfeaef}
.topbar .tb-left span{margin-right:20px;display:inline-flex;align-items:center;gap:6px}
.topbar .tb-right a{margin-left:14px;opacity:.85}
.topbar .tb-right a:hover{opacity:1;color:var(--teal)}
.site-header{position:sticky;top:0;z-index:900;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);transition:.3s}
.site-header.scrolled{box-shadow:0 6px 22px rgba(14,42,59,.08)}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:76px;gap:18px}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;color:var(--navy);font-size:1.1rem}
.brand img{height:46px;width:auto}
.brand small{display:block;font-size:.66rem;font-weight:500;color:var(--teal);letter-spacing:.1em;text-transform:uppercase}
.menu{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0}
.menu a{padding:10px 15px;border-radius:8px;font-weight:500;color:var(--ink);transition:.2s;font-size:.96rem}
.menu a:hover,.menu a.active{color:var(--teal);background:var(--bg-soft-2)}
.nav-cta{display:flex;align-items:center;gap:12px}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.hamburger span{width:26px;height:3px;background:var(--navy);border-radius:3px;transition:.3s}
.hero{position:relative;color:#eaf3f2;background:linear-gradient(120deg,rgba(9,28,40,.92),rgba(14,60,74,.82)),url('https://radiantenggindia.com/wp-content/uploads/2024/06/1.png') center/cover;padding:110px 0 120px;overflow:hidden}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;background:radial-gradient(circle,rgba(18,163,127,.35),transparent 70%);pointer-events:none}
.hero .container{position:relative;z-index:2;max-width:820px}
.hero h1{color:#fff}
.hero p{color:#cfe0e6;font-size:1.15rem;max-width:640px}
.hero .btns{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.hero-badges{display:flex;gap:26px;flex-wrap:wrap;margin-top:40px;color:#bcd4d3;font-size:.9rem}
.hero-badges b{color:#fff;display:block;font-size:1.5rem}
.page-banner{position:relative;color:#fff;text-align:center;padding:80px 0 66px;background:linear-gradient(120deg,rgba(9,28,40,.9),rgba(14,60,74,.82)),url('https://radiantenggindia.com/wp-content/uploads/2024/05/2.png') center/cover}
.page-banner h1{color:#fff;margin-bottom:.3rem}
.crumbs{color:#bcd4d3;font-size:.92rem}
.crumbs a:hover{color:var(--teal)}
.crumbs span{opacity:.7}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 22px;text-align:center;box-shadow:var(--shadow)}
.stat .num{font-size:2.4rem;font-weight:800;color:var(--teal);line-height:1}
.stat .lbl{color:var(--muted);font-weight:500;margin-top:8px;font-size:.95rem}
.grid{display:grid;gap:26px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.3s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:#d5e6e1}
.card .thumb{aspect-ratio:16/11;overflow:hidden;background:var(--bg-soft-2)}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:.5s}
.card:hover .thumb img{transform:scale(1.07)}
.card .body{padding:24px 24px 26px;flex:1;display:flex;flex-direction:column}
.card h3{margin-bottom:.4rem}
.card p{color:var(--muted);font-size:.95rem;flex:1}
.card .more{color:var(--teal);font-weight:600;margin-top:10px;display:inline-flex;align-items:center;gap:6px}
.card .more:hover{gap:11px}
.pill{display:inline-block;background:var(--bg-soft-2);color:var(--teal-dark);font-weight:600;font-size:.78rem;padding:5px 12px;border-radius:50px;margin-bottom:12px;width:fit-content}
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split .media{position:relative}
.split .media img{border-radius:var(--radius);box-shadow:var(--shadow-lg);width:100%}
.split .media .badge-float{position:absolute;left:-18px;bottom:-18px;background:var(--teal);color:#fff;padding:18px 22px;border-radius:14px;box-shadow:var(--shadow-lg);font-weight:600;line-height:1.2}
.split .media .badge-float b{font-size:1.7rem;display:block}
.feature-list{list-style:none;padding:0;margin:16px 0 24px;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.feature-list li{display:flex;align-items:center;gap:10px;font-weight:500;color:var(--ink)}
.feature-list li::before{content:"\2713";display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;background:var(--bg-soft-2);color:var(--teal);border-radius:50%;font-weight:700;flex:0 0 auto}
.certs{display:flex;gap:16px;flex-wrap:wrap;justify-content:center}
.cert{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 24px;font-weight:600;color:var(--navy);box-shadow:var(--shadow);display:flex;align-items:center;gap:10px}
.cert span{color:var(--teal);font-size:1.3rem}
.why{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.why .item{padding:28px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
.why .ico{width:56px;height:56px;border-radius:14px;background:var(--bg-soft-2);color:var(--teal);display:flex;align-items:center;justify-content:center;font-size:1.6rem;margin-bottom:14px}
.why h3{font-size:1.12rem}
.why p{color:var(--muted);font-size:.94rem;margin:0}
.cta-band{background:linear-gradient(120deg,var(--navy),var(--navy-2));color:#fff;text-align:center;border-radius:22px;padding:56px 28px;box-shadow:var(--shadow-lg)}
.cta-band h2{color:#fff}
.cta-band p{color:#cfe0e6;max-width:620px;margin:0 auto 22px}
.contact-wrap{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:start}
.info-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);display:flex;gap:16px;align-items:flex-start;margin-bottom:18px}
.info-card .ico{width:52px;height:52px;flex:0 0 auto;border-radius:12px;background:var(--bg-soft-2);color:var(--teal);display:flex;align-items:center;justify-content:center;font-size:1.4rem}
.info-card h4{margin:0 0 3px;font-size:1.02rem}
.info-card p,.info-card a{margin:0;color:var(--muted);font-size:.95rem;word-break:break-word}
.info-card a:hover{color:var(--teal)}
form.rf{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.rf .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.rf label{font-weight:600;font-size:.88rem;display:block;margin:0 0 6px;color:var(--navy)}
.rf .field{margin-bottom:16px}
.rf input,.rf select,.rf textarea{width:100%;padding:13px 15px;border:1.5px solid var(--line);border-radius:10px;font-family:inherit;font-size:.96rem;background:var(--bg-soft);transition:.2s}
.rf input:focus,.rf select:focus,.rf textarea:focus{outline:none;border-color:var(--teal);background:#fff;box-shadow:0 0 0 4px rgba(18,163,127,.12)}
.rf textarea{resize:vertical;min-height:120px}
.rf .btn{width:100%;margin-top:4px}
.form-note{font-size:.82rem;color:var(--muted);margin-top:12px;text-align:center}
.map-embed{border:0;width:100%;height:360px;border-radius:var(--radius);box-shadow:var(--shadow);margin-top:8px}
.team-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);text-align:center;transition:.3s}
.team-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.team-card .ph{height:110px;background:linear-gradient(120deg,var(--navy),var(--teal))}
.team-card .av{width:104px;height:104px;border-radius:50%;margin:-56px auto 0;background:#fff;border:5px solid #fff;box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center;font-size:2rem;font-weight:800;color:var(--teal)}
.team-card .body{padding:14px 20px 26px}
.team-card h3{margin:12px 0 2px;font-size:1.12rem}
.team-card .role{color:var(--teal);font-weight:600;font-size:.9rem}
.sectors{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.sector{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px 18px;text-align:center;box-shadow:var(--shadow);font-weight:600;color:var(--navy)}
.sector .ico{font-size:2rem;margin-bottom:8px}
.site-footer{background:var(--navy);color:#b9cdd5;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.site-footer h4{color:#fff;font-size:1.05rem;margin-bottom:16px}
.site-footer a{color:#b9cdd5;transition:.2s}
.site-footer a:hover{color:var(--teal)}
.f-links{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.f-brand img{height:52px;margin-bottom:14px}
.f-brand p{font-size:.92rem;color:#93aeb8}
.f-contact li{display:flex;gap:10px;margin-bottom:12px;font-size:.92rem;align-items:flex-start}
.f-contact .ico{color:var(--teal)}
.f-social{display:flex;gap:10px;margin-top:16px}
.f-social a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;transition:.2s}
.f-social a:hover{background:var(--teal);color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:48px;padding:20px 0;text-align:center;font-size:.86rem;color:#8aa6b0}
.fab-wrap{position:fixed;right:22px;bottom:22px;z-index:1000;display:flex;flex-direction:column;align-items:flex-end;gap:14px}
.fab{position:relative;width:60px;height:60px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(0,0,0,.25);cursor:pointer;border:0;transition:.25s;color:#fff}
.fab:hover{transform:scale(1.08)}
.fab svg{width:32px;height:32px}
.fab-wa{background:#25d366}
.fab-wa::after{content:"";position:absolute;width:60px;height:60px;border-radius:50%;background:#25d366;opacity:.5;animation:pulse 2s infinite;z-index:-1}
@keyframes pulse{0%{transform:scale(1);opacity:.5}70%{transform:scale(1.6);opacity:0}100%{opacity:0}}
.fab-bot{background:var(--teal)}
.chatbox{position:fixed;right:22px;bottom:96px;width:360px;max-width:calc(100vw - 44px);height:520px;max-height:calc(100vh - 130px);background:#fff;border-radius:18px;box-shadow:var(--shadow-lg);z-index:1001;display:none;flex-direction:column;overflow:hidden;border:1px solid var(--line)}
.chatbox.open{display:flex;animation:slideUp .25s ease}
@keyframes slideUp{from{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}
.chat-head{background:linear-gradient(120deg,var(--navy),var(--teal));color:#fff;padding:16px 18px;display:flex;align-items:center;gap:12px}
.chat-head .av{width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center;font-size:1.2rem}
.chat-head b{display:block;font-size:1rem}
.chat-head small{opacity:.85;font-size:.78rem;display:flex;align-items:center;gap:5px}
.chat-head small::before{content:"";width:8px;height:8px;border-radius:50%;background:#7CFFB2;display:inline-block}
.chat-head .x{margin-left:auto;background:none;border:0;color:#fff;font-size:1.4rem;cursor:pointer;line-height:1}
.chat-body{flex:1;overflow-y:auto;padding:18px;background:var(--bg-soft);display:flex;flex-direction:column;gap:12px}
.msg{max-width:82%;padding:11px 14px;border-radius:14px;font-size:.9rem;line-height:1.5;animation:slideUp .2s ease}
.msg.bot{background:#fff;border:1px solid var(--line);border-bottom-left-radius:4px;align-self:flex-start;color:var(--ink)}
.msg.user{background:var(--teal);color:#fff;border-bottom-right-radius:4px;align-self:flex-end}
.msg.bot a{color:var(--teal);font-weight:600}
.quick{display:flex;flex-wrap:wrap;gap:8px;padding:12px 14px;background:#fff;border-top:1px solid var(--line)}
.quick button{background:var(--bg-soft-2);color:var(--teal-dark);border:1px solid #d7e7e2;border-radius:50px;padding:7px 13px;font-size:.8rem;cursor:pointer;font-weight:500;transition:.2s;font-family:inherit}
.quick button:hover{background:var(--teal);color:#fff;border-color:var(--teal)}
.chat-input{display:flex;gap:8px;padding:12px 14px;border-top:1px solid var(--line);background:#fff}
.chat-input input{flex:1;border:1.5px solid var(--line);border-radius:50px;padding:10px 16px;font-family:inherit;font-size:.9rem}
.chat-input input:focus{outline:none;border-color:var(--teal)}
.chat-input button{background:var(--teal);border:0;color:#fff;width:42px;height:42px;border-radius:50%;cursor:pointer;flex:0 0 auto}
.chat-foot{text-align:center;font-size:.72rem;color:var(--muted);padding:8px;background:#fff}
.reveal{opacity:0;transform:translateY(26px);transition:.7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
@media(max-width:960px){.split{grid-template-columns:1fr;gap:34px}.contact-wrap{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.why{grid-template-columns:1fr 1fr}.sectors{grid-template-columns:repeat(2,1fr)}}
@media(max-width:820px){.menu{position:fixed;inset:0 0 0 auto;width:min(78vw,320px);background:#fff;flex-direction:column;align-items:stretch;padding:90px 22px 30px;gap:6px;transform:translateX(100%);transition:.3s;box-shadow:-10px 0 40px rgba(0,0,0,.12);z-index:950}.menu.open{transform:none}.menu a{padding:14px 16px;border-bottom:1px solid var(--line)}.hamburger{display:flex;z-index:960}.hamburger.active span:nth-child(1){transform:translateY(8px) rotate(45deg)}.hamburger.active span:nth-child(2){opacity:0}.hamburger.active span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}.nav-cta .btn{display:none}.stats{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:1fr 1fr}.topbar .tb-right{display:none}}
@media(max-width:560px){.section{padding:60px 0}.grid-3,.grid-2{grid-template-columns:1fr}.stats{grid-template-columns:1fr 1fr}.why{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.rf .row{grid-template-columns:1fr}.feature-list{grid-template-columns:1fr}.sectors{grid-template-columns:1fr 1fr}.hero{padding:80px 0 90px}.chatbox{right:12px;left:12px;width:auto;bottom:90px}.fab-wrap{right:16px;bottom:16px}}