:root{--navy:#061d37;--green:#0f766e;--teal:#20c997;--gold:#c9a227;--text:#08213f;--muted:#64748b;--light:#f7fafc}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:Inter,sans-serif;color:var(--text);background:var(--light)}
h1,h2,h3{font-family:"Playfair Display",serif}
.navbar{position:fixed;top:0;width:100%;height:76px;background:rgba(6,29,55,.96);backdrop-filter:blur(12px);color:#fff;z-index:999;display:flex;align-items:center;justify-content:space-between;padding:0 38px;box-shadow:0 8px 25px rgba(0,0,0,.18)}
.brand{display:flex;align-items:center;gap:13px}.brand img{width:46px;height:46px;border-radius:50%;object-fit:cover;background:#fff}.brand h2{font-size:21px}.brand span{font-size:12px;color:#cbd5e1}
nav{display:flex;gap:18px}nav a{color:#fff;text-decoration:none;font-size:13px;font-weight:700;position:relative;white-space:nowrap}
nav a:after{content:"";position:absolute;left:0;bottom:-8px;width:0;height:2px;background:var(--teal);transition:.3s}nav a:hover:after{width:100%}
.menu-btn{display:none;background:none;border:0;color:#fff;font-size:28px}
.hero{min-height:100vh;background:linear-gradient(90deg,rgba(2,14,31,.92),rgba(2,14,31,.58)),url('assets/images/valley-field.png') center/cover;display:grid;grid-template-columns:1.1fr .8fr;gap:40px;align-items:center;padding:130px 7% 60px;color:#fff}
.hero-content{max-width:720px}.eyebrow{letter-spacing:.13em;text-transform:uppercase;color:var(--teal);font-size:13px;font-weight:800;margin-bottom:14px}.dark{color:var(--green)}
.hero h1{font-size:66px;line-height:1.05}.hero h3{font-size:30px;margin:12px 0 20px}.hero p{font-size:18px;line-height:1.8;color:#e2e8f0}
.hero-profile img{width:100%;max-height:600px;object-fit:cover;border-radius:28px;border:8px solid rgba(255,255,255,.14);box-shadow:0 30px 70px rgba(0,0,0,.35)}
blockquote{margin-top:32px;font-style:italic;background:rgba(255,255,255,.09);border-left:4px solid var(--teal);padding:18px;border-radius:10px}
.btn{display:inline-block;margin:22px 12px 0 0;padding:13px 24px;border-radius:7px;text-decoration:none;font-weight:800}.primary{background:var(--green);color:#fff}.secondary{border:1px solid #fff;color:#fff}
.impact{background:var(--navy);color:#fff;display:grid;grid-template-columns:repeat(6,1fr);gap:1px;padding:0 7%}.impact div{text-align:center;padding:24px 10px;border-right:1px solid rgba(255,255,255,.13)}.impact b{font-size:30px;display:block}.impact span{font-size:13px;color:#cbd5e1}
.section{padding:96px 7%}.section-head{text-align:center;max-width:760px;margin:0 auto 44px}.section h2{font-size:46px;margin-bottom:12px}
.area-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:20px}.area-card{background:#fff;padding:30px 15px;border-radius:16px;text-align:center;box-shadow:0 10px 35px rgba(2,14,31,.08);transition:.3s;font-size:34px}.area-card:hover{transform:translateY(-8px)}.area-card h4{font-size:15px;margin-top:12px}
.inner-hero{min-height:430px;margin-top:76px;padding:100px 7%;color:#fff;display:flex;flex-direction:column;justify-content:center;background-size:cover;background-position:center;position:relative}.inner-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(2,14,31,.9),rgba(2,14,31,.35))}.inner-hero h1,.inner-hero p{position:relative}.inner-hero h1{font-size:58px}.inner-hero p{font-size:20px;color:#e2e8f0;margin-top:12px}
.about-hero{background-image:url('assets/images/forest-selfie.png')}.research-hero{background-image:url('assets/images/valley-field.png')}.collective-hero{background-image:url('assets/images/research-team.png')}.chandravani-hero{background-image:url('assets/images/lecture.jpg')}.darshana-hero{background-image:url('assets/images/valley-field.png')}.connect-hero{background-image:url('assets/images/nit-campus.webp')}
.two-col{display:grid;grid-template-columns:330px 1fr;gap:35px;align-items:start}.timeline{background:#fff;border-radius:16px;padding:30px;box-shadow:0 10px 35px rgba(2,14,31,.08)}.timeline div{border-left:2px solid var(--green);padding:0 0 25px 22px}.timeline b{display:block;color:var(--green)}.timeline span{font-size:14px}
.profile-card,.contact-info,form{background:#fff;border-radius:16px;padding:28px;box-shadow:0 10px 35px rgba(2,14,31,.08)}.profile-card img{width:100%;height:360px;object-fit:cover;border-radius:14px;margin-bottom:22px}.profile-card p{line-height:1.8;color:#334155}.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:25px;border-top:1px solid #e2e8f0;padding-top:20px}.mini-grid div{background:#f8fafc;padding:18px;border-radius:12px}.mini-grid span{display:block;font-size:13px;color:#475569;margin-top:8px}
.tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}.tabs button{border:1px solid #dbe4ef;background:#fff;padding:10px 18px;border-radius:999px;cursor:pointer;font-weight:700;color:var(--text)}.tabs .active,.tabs button:hover{background:var(--navy);color:#fff}
.pub-list{display:grid;gap:18px}.pub-card{background:#fff;border-radius:14px;padding:16px;display:grid;grid-template-columns:130px 1fr 90px;gap:18px;align-items:center;box-shadow:0 10px 35px rgba(2,14,31,.07)}.pub-card img{width:130px;height:85px;object-fit:cover;border-radius:10px}.pub-card h4{font-size:17px}.pub-card p{font-size:13px;color:var(--muted);margin-top:7px}.pub-card a{background:var(--navy);color:#fff;text-align:center;padding:10px;border-radius:6px;text-decoration:none;font-size:13px}
.project-grid,.blog-grid,.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.project-card,article,.team-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 10px 35px rgba(2,14,31,.08)}.project-card img,article img{width:100%;height:210px;object-fit:cover}.project-card div,article,.team-card{padding:24px}.project-card p,article p,.team-card p{color:#475569;line-height:1.7;margin-top:10px}.spaced{margin:48px 0 20px}.avatar{width:68px;height:68px;background:var(--navy);color:#fff;border-radius:50%;display:grid;place-items:center;font-weight:900;margin-bottom:15px}.wide-img{width:100%;max-height:460px;object-fit:cover;border-radius:20px;margin-top:32px;box-shadow:0 20px 50px rgba(2,14,31,.14)}
article a{display:inline-block;margin-top:15px;color:var(--green);font-weight:800}.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.gallery-grid img{width:100%;height:270px;object-fit:cover;border-radius:15px;transition:.3s;background:#fff}.gallery-grid img:hover{transform:scale(1.03)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:35px}.contact-info p{margin:16px 0;color:#334155}.contact-info a{color:var(--green);font-weight:800}.map{height:180px;background:#dbeafe;border-radius:14px;display:grid;place-items:center;color:#0f172a;font-weight:800;margin-top:25px}input,textarea{width:100%;padding:15px;margin:10px 0;border:1px solid #dbe4ef;border-radius:8px;font-family:Inter}textarea{height:180px}form button{width:100%;padding:15px;background:var(--navy);color:#fff;border:0;border-radius:8px;font-weight:800}
footer{background:var(--navy);color:#fff;text-align:center;padding:45px}footer p{color:#cbd5e1;margin:8px 0}
@media(max-width:1050px){nav{gap:10px}.hero h1{font-size:48px}.area-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:850px){.menu-btn{display:block}nav{display:none;position:absolute;top:76px;left:0;width:100%;background:var(--navy);flex-direction:column;padding:25px}nav.show{display:flex}.hero,.impact,.area-grid,.project-grid,.blog-grid,.gallery-grid,.team-grid,.contact-grid,.two-col{grid-template-columns:1fr}.hero{padding-top:120px}.inner-hero h1{font-size:42px}.pub-card{grid-template-columns:1fr}.pub-card img{width:100%;height:190px}.mini-grid{grid-template-columns:1fr}}