/* =========================
   RESET
========================= */

*{

margin:0;
padding:0;
box-sizing:border-box;

}


html{

scroll-behavior:smooth;

}


body{

font-family:'Inter',sans-serif;

background:#ffffff;

color:#1e293b;

line-height:1.7;

}



a{

text-decoration:none;

color:inherit;

}




/* =========================
   NAVBAR
========================= */


.navbar{

position:fixed;

top:0;

left:0;

width:100%;

height:75px;

display:flex;

justify-content:space-between;

align-items:center;

padding:0 8%;

background:rgba(255,255,255,0.96);

border-bottom:1px solid #e5e7eb;

z-index:1000;

}



.logo{

font-family:'Libre Baskerville',serif;

font-size:24px;

font-weight:700;

color:#0f172a;

}



.navbar ul{

display:flex;

list-style:none;

gap:35px;

}



.navbar ul a{

font-size:15px;

font-weight:500;

color:#334155;

transition:.3s;

}



.navbar ul a:hover{

color:#2563eb;

}




/* =========================
   HERO
========================= */


.hero{

min-height:100vh;

padding:130px 8% 80px;

display:grid;

grid-template-columns:1.1fr .9fr;

align-items:center;

gap:70px;

}



.hero-text h1{

font-family:'Libre Baskerville',serif;

font-size:64px;

line-height:1.2;

color:#0f172a;

margin-bottom:15px;

}



.hero-text h2{

font-size:28px;

font-weight:500;

color:#2563eb;

margin-bottom:20px;

}



.department{

font-size:20px;

color:#475569;

margin-bottom:25px;

}



.description{

max-width:650px;

font-size:18px;

color:#475569;

}




/* =========================
   BUTTONS
========================= */


.buttons{

display:flex;

gap:20px;

margin-top:35px;

}



.primary{

background:#2563eb;

color:white;

padding:14px 30px;

border-radius:8px;

font-weight:600;

transition:.3s;

}



.primary:hover{

background:#1d4ed8;

transform:translateY(-3px);

}



.secondary{

border:2px solid #2563eb;

color:#2563eb;

padding:12px 30px;

border-radius:8px;

font-weight:600;

transition:.3s;

}



.secondary:hover{

background:#2563eb;

color:white;

}




/* =========================
   PROFILE IMAGE
========================= */


.profile{

display:flex;

justify-content:center;

}



.profile img{

width:350px;

height:350px;

object-fit:cover;

border-radius:50%;

border:8px solid white;

box-shadow:0 20px 45px rgba(0,0,0,.15);

}

/* =========================
   GENERAL SECTIONS
========================= */


.section{

padding:90px 8%;

}



.section h2{

font-family:'Libre Baskerville',serif;

font-size:38px;

color:#0f172a;

margin-bottom:35px;

position:relative;

}



.section h2::after{

content:"";

display:block;

width:55px;

height:3px;

background:#2563eb;

margin-top:12px;

}





/* =========================
   LINKS
========================= */


.links{

display:flex;

gap:20px;

margin-top:35px;

flex-wrap:wrap;

}



.links a{

color:#2563eb;

font-weight:500;

border-bottom:1px solid transparent;

transition:.3s;

}



.links a:hover{

border-color:#2563eb;

}




/* =========================
   RESEARCH CARDS
========================= */


.research-grid{

display:grid;

grid-template-columns:repeat(3,1fr);

gap:30px;

}



.research-card{

padding:35px;

border:1px solid #e2e8f0;

border-radius:12px;

background:#ffffff;

transition:.3s;

}



.research-card:hover{

transform:translateY(-6px);

box-shadow:0 15px 35px rgba(0,0,0,.08);

}



.research-card h3{

font-family:'Libre Baskerville',serif;

font-size:22px;

color:#0f172a;

margin-bottom:15px;

}



.research-card p{

color:#475569;

}





/* =========================
   PUBLICATIONS
========================= */


.paper{

padding:30px;

border-left:4px solid #2563eb;

background:#f8fafc;

margin-bottom:25px;

border-radius:8px;

transition:.3s;

}



.paper:hover{

transform:translateX(8px);

box-shadow:0 10px 25px rgba(0,0,0,.06);

}



.paper h3{

font-size:22px;

color:#0f172a;

margin-bottom:12px;

}



.paper p{

color:#475569;

margin-bottom:10px;

}



.paper a{

color:#2563eb;

font-weight:600;

}





/* =========================
   EDUCATION
========================= */


.timeline-box{

padding:30px;

border:1px solid #e2e8f0;

border-radius:12px;

margin-bottom:25px;

}



.timeline-box h3{

font-family:'Libre Baskerville',serif;

font-size:22px;

color:#0f172a;

margin-bottom:10px;

}



.timeline-box p{

color:#475569;

}

/* =========================
   CONTACT
========================= */


.contact{

background:#f8fafc;

padding:30px;

border-radius:12px;

max-width:650px;

}



.contact p{

font-size:17px;

margin-bottom:15px;

color:#475569;

}



.contact a{

color:#2563eb;

}





/* =========================
   FOOTER
========================= */


footer{

background:#0f172a;

color:#cbd5e1;

text-align:center;

padding:35px;

margin-top:50px;

}



footer p{

margin:5px;

}





/* =========================
   SCROLL EFFECT
========================= */


.section{

animation:fadeUp .8s ease;

}



@keyframes fadeUp{

from{

opacity:0;

transform:translateY(25px);

}


to{

opacity:1;

transform:translateY(0);

}

}





/* =========================
   RESPONSIVE DESIGN
========================= */


@media(max-width:1000px){


.hero{

grid-template-columns:1fr;

text-align:center;

}



.description{

margin:auto;

}



.buttons{

justify-content:center;

}



.links{

justify-content:center;

}



.profile img{

width:280px;

height:280px;

}



.research-grid{

grid-template-columns:1fr;

}



}



@media(max-width:700px){


.navbar{

padding:0 20px;

}



.navbar ul{

display:none;

}



.logo{

font-size:20px;

}



.hero{

padding:110px 20px 60px;

}



.hero-text h1{

font-size:42px;

}



.hero-text h2{

font-size:22px;

}



.department{

font-size:17px;

}



.description{

font-size:16px;

}



.buttons{

flex-direction:column;

align-items:center;

}



.primary,
.secondary{

width:220px;

text-align:center;

}



.section{

padding:70px 20px;

}



.section h2{

font-size:30px;

}



.paper h3{

font-size:18px;

}



.profile img{

width:230px;

height:230px;

}


}