@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800;900&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    text-decoration: none;
    border: none;
    outline: none;
    scroll-behavior: smooth;
    font-family: 'Poppins', sans-serif;
}
:root{
    --bg-color:#003249;
    --second-bg-color:#007ea7;
    --text-colr:#fff;
    --main-color:#80ced7;
}
html{
    font-size: 62.5%;
    overflow-x: hidden;
}
body{
    background: var(--bg-color);
    color: var(--text-colr);
}
section{
    min-height: 100vh;
    padding: 10rem 9% 2rem;
}
.header{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 2rem 9%;
    background: var(--bg-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
}
.header.sticky{
    border-bottom: .1rem solid rgba(0,0,0, .2);
}
.logo{
    font-size: 2.5rem;
    color: var(--text-colr);
    font-weight:600;
    cursor: default;
}
.navbar a {
 font-size: 1.7rem;
 color: var(--text-colr);
 margin-left: 4rem;
 transition: .3s;
}

.navbar a:hover,
.navbar a.active{
  color: var(--main-color);
}

#menu-icon{
    font-size: 3.6rem;
    color: var(--text-colr);
    display: none;

}
.home{
    display: flex;
    justify-content: space-between;
    align-items: center;

}
.home p{
    text-align: justify;
  }
.home-img img{
    margin-left: 20px;
    width: 30vw;
    border-radius: 90rem;
    animation: floatImage 4s ease-in-out infinite;
}
@keyframes floatImage{
    0%{
        transform: translateY(0);
    }
    50%{
        transform: translateY(-2.4rem);
    }
    100%{
        transform: translateY(0);
    }
}
.home-content h3{
    font-size: 3.2rem;
    font-weight: 700;
}

.home-content h3:nth-of-type(2){
    margin-bottom: 2rem;
}

span{
    color: var(--main-color);
}

.home-content h1{
    font-size: 4.5rem;
    font-weight: 700;
    line-height: 1.3;

}
.home-content p {
    font-size: 1.6rem;
}
.social-media a{
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 4rem;
    height: 4rem;
    background: transparent;
    border:.2rem solid var(--main-color);
    border-radius: 2rem;
    font-size: 2rem;
    margin: 3rem 1.5rem 3rem 0;
    transition: .5s ease;
}

.social-media a:hover{
    background: var(--main-color);
    color: var(--second-bg-color);
    box-shadow: 0 0 1rem var(--main-color);
}

.btn{
    display: inline-block;
    padding: 1rem 2.8rem;
    background: var(--main-color);
    border-radius: 3rem;
    box-shadow:  0 0 1rem var(--main-color);
    font-size: 1.6rem;
    color: var(--second-bg-color);
    letter-spacing: .1rem;
    font-weight: 600;
    transition: .5s ease;
}
.btn:hover{
    box-shadow: none;
    
}
/* ===== ABOUT SECTION (RESTORED ORIGINAL LAYOUT) ===== */

.about{
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    background: var(--second-bg-color);
}

.about-img img{
    width: 35vw;
    border-radius: 1rem;
}
/* ===== ABOUT SECTION FIX (NO LAYOUT CHANGE) ===== */

.about-content p {
    font-size: 1.6rem;
    line-height: 1.8;
    margin: 1.2rem 0;
    text-align: justify;
  }
  
  .about-intro {
    font-weight: 600;
    margin-top: 1.5rem;
  }
  
  /* Proper bullet rendering */
  .about-list {
    margin: 1rem 0 2rem 2.5rem;
    padding-left: 1rem;
  }
  
  .about-list li {
    font-size: 1.6rem;
    line-height: 1.7;
    margin-bottom: 0.8rem;
  }
  
  /* Prevent bullets from inheriting paragraph styles */
  .about-list,
  .about-list li {
    text-align: left;
  }
.services h2{
    margin-bottom: 5rem;
}

.services-container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap:2rem;
}
.services-container .services-box{
 
flex:  1 1 30rem;
background: var(--second-bg-color);
padding: 3rem 2rem 4rem;
border-radius: 2rem;
text-align: center;
border: .2rem solid var(--bg-color);
transition: .5s ease;
}
.services-container .services-box:hover{
    border-color: var(--main-color);
    transform: scale(1.02);
}

.services-box i{
    font-size: 7rem;
    color: var(--main-color);
}
.services-box h3{
    font-size: 2.6rem;
}
.services-box p{
    font-size: 1.6rem;
    margin: 1rem 0 3rem;
}
.portfolio{
    background: var(--second-bg-color);

}

.portfolio h2{
    margin-bottom: 4rem;
}
.portfolio-container{
    display: grid;
    grid-template-columns: repeat(3,1fr);
    align-items: center;
    gap:2.5rem;
}
.portfolio-container .portfolio-box{
    position: relative;
    border-radius: 2rem;
    box-shadow:  0 0 1rem var(--bg-color);
    overflow: hidden;
    display: flex;
}

.portfolio-box img{
    width: 100%;
    transition: .5s ease;
}
.portfolio-box:hover img{
    transform: scale(1.1);
}

.portfolio-box .portfolio-layer{
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0,0,0,.1), var(--main-color));
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    text-align: center;
    padding: 0 4rem;
    transform: translateY(100%);
}
.portfolio-box:hover .portfolio-layer{
    transform: translateY(0);
}

.portfolio-layer h4{
    font-size: 3rem;
}
.portfolio-layer p {
    font-size: 1.6rem;
    margin: 3rem 0 1rem;

}
.portfolio-layer a{
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 5rem;
    height: 5rem;
    background: var(--text-colr);
    border-radius: 50%;
}

.portfolio-layer a i{
    font-size: 2rem;
    color: var(--second-bg-color);
}

.contact h2{
    max-width: 70rem;
    margin: 1rem auto;
    text-align: center;
    margin-bottom: 3rem;
    
}

.contact form .input-box{
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.contact form .input-box input,
.contact form textarea{
    width: 100%;
    padding: 1.5rem;
    font-size: 1.6rem;
    color: var(--text-colr);
    /* color: #fff; */
    background: var(--second-bg-color);
    border-radius: .8rem;
    margin: .7rem 0;
}

.contact form .input-box input{
    width : 49%;
}
.contact form textarea{
    resize: none;
}

.contact form .btn{
    margin: 2rem;
    cursor: pointer;
}

.footer{
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    padding: 2rem 9%;
    background: var(--second-bg-color);
}

.footer-text p{
 font-size: 1.6rem;
}
.footer-iconTop a{
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: .8rem;
    background: var(--main-color);
    border-radius: .8rem;
    transition: .5s ease;
}
.footer-iconTop a:hover{
    box-shadow: 0 0 1rem var(--main-color);
}

.footer-iconTop a i{
    font-size: 2.4rem;
    color: var(--second-bg-color);
}

/* BreakPoints */
@media (max-width: 1200px){
    html{
        font-size: 55%;
    }
}

@media (max-width: 991px){
    .header{
        padding: 2rem 3%;
    }
    section{
        padding: 10rem 3% 2rem;
    }
    .services{
        padding-bottom: 7rem;
    }
    .portfolio{
        padding-bottom: 7rem;
    }
    .contact{
        min-height: auto;
    }
    .footer{
        padding: 2rem 3%;
        
    }

}
@media (max-width: 768px){
    #menu-icon{
        display: block;
    }
    .navbar{
        position: absolute;
        top: 100%;
        left: 0;
        width:100%;
        padding: 1rem 3%;
        background: var(--bg-color);
        border-top: .1rem solid rgba(8, 7, 7, 0.2);
        box-shadow: 0 .5rem 1rem rgba(0,0,0, .2);
        display: none;
    }

    .navbar .active{
        display: block;
    }
    .navbar a{
        display: block;
        font-size: 2rem;
        margin: 3rem 0;
    }

    .home{
        flex-direction: column;
    }
    .home-content h3{
        font-size: 2.6rem;
    }
    .home-content h1{
        font-size: 4rem;
    }
    .home-img img{
        width: 70vw;
        margin-top: 4rem;
    }

    .about{
        flex-direction: column-reverse;
    }
    .about img{
        width: 70vw;
        margin-top: 4rem;
    }
    .services h2{
        margin-bottom: 3rem;
    }
    .portfolio h2{
        margin-bottom: 3rem;
    }
    .portfolio-container{
        grid-template-columns: repeat(2,1fr);
    }
}
@media (max-width: 617px){
    .portfolio-container{
        grid-template-columns: 1fr;
    }
}
@media (max-width: 450px){
    html{
        font-size: 50%;
    }
    .contact form .input-box input{
        width: 100%;
    }
}
@media (max-width: 365px){
    .home-img img{
        width: 90vw;
    }
    /* ===== FIX ABOUT IMAGE SIZE (UNIFORM & RESPONSIVE) ===== */

.about-img img{
    width: 420px;          /* consistent desktop size */
    max-width: 100%;       /* responsive */
    height: auto;          /* no distortion */
    border-radius: 1.5rem;
    object-fit: cover;
}
    }
    .footer{
        flex-direction: column-reverse;
    }
    .footer p{
        text-align: center;
        margin-top: 2rem;
    }
}
.input-box ::placeholder {
    color: #fff;
}
.contact ::placeholder{
    color: #fff;
}
.about {
    text-align: justify;
}
.bx {
    color:#fff;
}
/* ===== GLOBAL SECTION HEADING CONSISTENCY FIX ===== */

section .heading {
    font-size: 4.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
}

/* About heading stays left-aligned (original look) */
.about-content .heading {
    text-align: left;
}

/* Portfolio & Contact headings centered (original look) */
.portfolio .heading,
.contact .heading,
.responsibilities .heading {
    text-align: center;
}

/* Ensure span highlight is consistent everywhere */
.heading span {
    color: var(--main-color);
}
/* ===== EXPERIENCE SECTION ===== */

.experience {
    background: var(--bg-color);
}

.experience-container {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    margin-top: 4rem;
}

.experience-box {
    background: var(--second-bg-color);
    padding: 2.5rem 3rem;
    border-radius: 1.5rem;
    box-shadow: 0 0 1rem rgba(0,0,0,0.2);
}

.experience-box h3 {
    font-size: 2.4rem;
    margin-bottom: 1rem;
    color: var(--main-color);
}

.experience-box .role {
    font-size: 1.7rem;
    font-weight: 500;
    margin-top: 1rem;
}

.experience-box .duration {
    display: block;
    font-size: 1.4rem;
    opacity: 0.9;
    margin-bottom: 0.5rem;
}
/* === FORCE PORTFOLIO GRID DISCIPLINE === */
.portfolio-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
  }
  
  .portfolio-box {
    width: 100%;
    max-width: 100%;
    aspect-ratio: 4 / 3;
  }
  
  .portfolio-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
 /* Google Scholar Icon */
.social-media a.scholar-icon {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 4rem;
    height: 4rem;
    border: 0.2rem solid var(--main-color);
    border-radius: 50%;
    margin: 3rem 1.5rem 3rem 0;
    color: #fff;
    transition: 0.5s ease;
}

.social-media a.scholar-icon:hover {
    background: var(--main-color);
    color: var(--second-bg-color);
    box-shadow: 0 0 1rem var(--main-color);
}

.achievements {
    background: var(--second-bg-color);
  }
  
  .achievement-list {
    margin-top: 2rem;
    padding-left: 2rem;
  }
  
  .achievement-list li {
    font-size: 1.6rem;
    line-height: 1.8;
    margin-bottom: 1.6rem;
  }
  .courses {
    background: var(--bg-color);
  }
  
  .sub-heading {
    font-size: 2.6rem;
    margin: 3rem 0 1.5rem;
    color: var(--main-color);
  }
  
  .course-list {
    padding-left: 2rem;
  }
  
  .course-list li {
    font-size: 1.6rem;
    line-height: 1.8;
    margin-bottom: 0.8rem;
  }

  /* NAVBAR BASE */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 8%;
    background: #0b2a3d;
    position: sticky;
    top: 0;
    z-index: 1000;
  }
  
  .nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
  }
  
  .nav-links li {
    position: relative;
  }
  
  .nav-links a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
  }
  
  .nav-links a:hover {
    color: #6dd5ed;
  }
  
  /* DROPDOWN */
  .dropdown-menu {
    display: none;
    position: absolute;
    top: 120%;
    left: 0;
    background: #123a52;
    border-radius: 8px;
    min-width: 220px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
  }
  
  .dropdown-menu li {
    padding: 0.8rem 1.2rem;
  }
  
  .dropdown-menu li a {
    color: #fff;
    display: block;
  }
  
  .dropdown-menu li a:hover {
    background: #1b4f6b;
    border-radius: 6px;
  }
  
  /* SHOW ON HOVER */
  .dropdown:hover .dropdown-menu {
    display: block;
  }
  ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.courses {
    padding: 6rem 9%;
  }
  
  .sub-heading {
    font-size: 2.2rem;
    margin: 2rem 0 1rem;
    color: var(--main-color);
  }
  
  .course-list {
    margin-left: 2rem;
    list-style-type: disc;
  }
  
  .course-list li {
    font-size: 1.6rem;
    margin-bottom: 0.8rem;
    line-height: 1.6;
  }
  /* ACHIEVEMENTS SECTION */
.achievements {
    padding: 10rem 9% 4rem;
  }
  
  .sub-heading {
    font-size: 2.4rem;
    margin: 4rem 0 1.5rem;
    color: var(--main-color);
  }
  
  .achievement-list {
    list-style: disc;
    margin-left: 3rem;
  }
  
  .achievement-list li {
    font-size: 1.6rem;
    line-height: 1.8;
    margin-bottom: 1.4rem;
  }
  /* ===== IMAGE SCROLL GALLERY ===== */

.gallery-section {
    padding: 6rem 9%;
  }
  
  .scroll-gallery {
    display: flex;
    gap: 2.5rem;
    overflow-x: auto;
    padding: 2rem 0;
    scroll-snap-type: x mandatory;
  }
  
  .scroll-gallery::-webkit-scrollbar {
    height: 8px;
  }
  
  .scroll-gallery::-webkit-scrollbar-thumb {
    background: #5ec4d6;
    border-radius: 10px;
  }
  
  .gallery-card {
    min-width: 320px;
    max-width: 320px;
    background: #0f2d44;
    border-radius: 1.5rem;
    overflow: hidden;
    scroll-snap-align: start;
    box-shadow: 0 10px 25px rgba(0,0,0,0.25);
  }
  
  .gallery-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
  }
  
  .gallery-card .caption {
    padding: 1.2rem;
    font-size: 1.4rem;
    color: #ffffff;
    text-align: center;
    line-height: 1.4;
  }
  /* ===== Image Gallery Card ===== */
.gallery-card {
    background: #12324a;
    border-radius: 16px;
    padding: 15px;
    width: 100%;
    max-width: 420px;
    overflow: hidden;
  }
  
  /* ===== Image Gallery Card ===== */
.gallery-card {
    background: #12324a;
    border-radius: 16px;
    padding: 15px;
    width: 100%;
    max-width: 420px;
    overflow: hidden;
  }
  
/* ===== Gallery Card ===== */
.gallery-card {
    background: #162b3f;
    border-radius: 18px;
    padding: 14px;
    width: 320px;
    flex-shrink: 0;
  }
  
  /* ===== Image Viewport ===== */
  .gallery-card .image-strip {
    position: relative;
    width: 100%;
    height: 220px;
    overflow: hidden;
    border-radius: 14px;
  }
  
  /* ===== Images ===== */
  .gallery-card .image-strip img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain; /* FULL image, no crop */
    opacity: 0;
  }
  
  /* ✅ First image visible by default */
  .gallery-card .image-strip img:first-child {
    opacity: 1;
  }
  
  /* ===== Slideshow ONLY on hover ===== */
  .gallery-card:hover .image-strip img {
    animation: slideshow 8s infinite; /* ⏱ faster */
  }
  
  /* ===== Animation Delays ===== */
  .gallery-card:hover .image-strip img:nth-child(1) { animation-delay: 0s; }
  .gallery-card:hover .image-strip img:nth-child(2) { animation-delay: 2s; }
  .gallery-card:hover .image-strip img:nth-child(3) { animation-delay: 4s; }
  .gallery-card:hover .image-strip img:nth-child(4) { animation-delay: 6s; }
  .gallery-card:hover .image-strip img:nth-child(5) { animation-delay: 8s; }
  
  /* ===== Keyframes ===== */
  @keyframes slideshow {
    0%   { opacity: 0; }
    5%   { opacity: 1; }
    25%  { opacity: 1; }
    30%  { opacity: 0; }
    100% { opacity: 0; }
  }
  
  /* ===== Caption ===== */
  .gallery-card .caption {
    margin-top: 12px;
    text-align: center;
    color: #ffffff;
    font-size: 0.95rem;
    line-height: 1.4;
  }
  /* =========================================================
   FINAL UNIFORM GALLERY + HOVER SLIDESHOW (PRODUCTION SAFE)
   ========================================================= */

/* Horizontal gallery container */
.scroll-gallery {
    display: flex;
    gap: 2.5rem;
    overflow-x: auto;
    padding: 2rem 0;
    scroll-snap-type: x mandatory;
  }
  
  /* Scrollbar styling */
  .scroll-gallery::-webkit-scrollbar {
    height: 6px;
  }
  .scroll-gallery::-webkit-scrollbar-thumb {
    background: var(--main-color);
    border-radius: 10px;
  }
  
  /* Gallery card */
  .gallery-card {
    width: 320px;
    flex-shrink: 0;
    background: #162b3f;
    border-radius: 18px;
    padding: 14px;
    scroll-snap-align: start;
  }
  
  /* Image viewport — FIXES NON-UNIFORM SIZES */
  .gallery-card .image-strip {
    position: relative;
    width: 100%;
    height: 220px;               /* ✅ fixed height */
    background: #0f2d44;
    border-radius: 14px;
    overflow: hidden;
  }
  
  /* Images — ALL SAME SIZE */
  .gallery-card .image-strip img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;           /* ✅ uniform look */
    opacity: 0;
    transition: opacity 0.6s ease;
  }
  
  /* First image visible by default */
  .gallery-card .image-strip img:first-child {
    opacity: 1;
  }
  
  /* Slideshow ONLY when hovering */
  .gallery-card:hover .image-strip img {
    animation: gallerySlide 6s infinite;
  }
  
  /* Timing per image */
  .gallery-card:hover .image-strip img:nth-child(1) { animation-delay: 0s; }
  .gallery-card:hover .image-strip img:nth-child(2) { animation-delay: 2s; }
  .gallery-card:hover .image-strip img:nth-child(3) { animation-delay: 4s; }
  .gallery-card:hover .image-strip img:nth-child(4) { animation-delay: 6s; }
  .gallery-card:hover .image-strip img:nth-child(5) { animation-delay: 8s; }
  
  /* Animation logic */
  @keyframes gallerySlide {
    0%   { opacity: 0; }
    10%  { opacity: 1; }
    40%  { opacity: 1; }
    50%  { opacity: 0; }
    100% { opacity: 0; }
  }
  
  /* Caption */
  .gallery-card .caption {
    margin-top: 12px;
    text-align: center;
    font-size: 1.4rem;
    color: #ffffff;
    line-height: 1.4;
  }
  
  /* ======================
     MOBILE RESPONSIVENESS
     ====================== */
  @media (max-width: 768px) {
    .gallery-card {
      width: 85vw;
    }
    .gallery-card .image-strip {
      height: 200px;
    }
  }