/*
    Cardial Color #dc143c
    Windows 95 taskbar color #c0c0c0
    Windows 95 desktop background color #008080
*/
body {
    height: 100%;
    margin: 0;
    padding: 5rem 0 0 0;
    font-family: 'Open Sans', Arial, Helvetica, sans-serif;
    background-color: white;
    background-image: 
        linear-gradient(to right, rgba(0,0,0,0.1) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(0,0,0,0.1) 1px, transparent 1px);
    background-size: 10px 10px;
    
}

h1 {
    font-size: 55px;
    color: #333;
}
.display-5 {
    padding-bottom: 9%;
}

h3 {
    font-size: 3rem;
    font-weight: bold;
}

h4 {
    font-size: 2.3rem;
    font-weight: bolder;
}

p {
    font-size: 1.2rem;
    line-height: 1.5;
    color: #666;
    text-align: justify;
}

footer p {
    text-align: center;
    margin-bottom: 0;
}

img {
    max-height: 500px;
}

.navbar {
    box-shadow: 0px 2px 5px rgba(0,0,0,0.1);
    height: 80px;
}

.nav-link:hover {
    box-shadow: 0px 4px 6px rgba(0,0,0,0.2);
    background-color: rgba(255,255,255,0.1);
    border-radius: 5px;
    transition: all 0.3s ease;
    font-weight: 700;
}
.nav-link.active {
    background-color: white;
    color: black !important;
    border-radius: 5px;
    box-shadow: 0px 4px 6px rgba(0,0,0,0.2);
    font-weight: bold;
}

.container {
    margin-top: 80px;
    padding-top: 3rem;
    padding-bottom: 2rem;
}

.btn i {
    font-size: 1.2rem;
}

.text-outline {
    color: white;
    -webkit-text-stroke: 2px black;
    font-weight: bold;
}

.container .row {
    margin-bottom: 5rem;
}

.mario {
    max-width: 400px;
    animation: float 3s ease-in-out infinite;
}
@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {  
        transform: translateY(0px);
    }
}

.fullscreen-container {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: black;
    position: relative;
}
.windows-title {
    font-size: 4rem;
    font-weight: bold;
    color: aliceblue;
    margin-bottom: 2rem;
    text-shadow: 2px 2px 5px rgba(255, 0, 0, 0.7);
    text-align: center;
}
.windows-image {
    width: 80vh;
    height: auto;
    border-radius: 10px;
    box-shadow: 0px 10px 15px rgba(0,0,0,0.5);
}
.start-button {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    background: linear-gradient(to bottom, #cfcfcf, #a3a3a3);
    border: 2px solid black;
    width: 150px;
    height: 50px;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 20px;
    transition: all 0.3s ease-in-out;
}

.start-button:hover {
    background: linear-gradient(to bottom, #ffffff, #cfcfcf);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.start-logo {
    width: 30px;
    height: 30px;
    margin: 10px;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 48 48"><path fill=\'%234CAF50\' d=\'M8 7h13v13H8z\'/><path fill=\'%23F44336\' d=\'M27 7h13v13H27z\'/><path fill=\'%23FFEB3B\' d=\'M8 27h13v13H8z\'/><path fill=\'%233F51B5\' d=\'M27 27h13v13H27z\'/></svg>') no-repeat center center / cover;
}

.start-text {
    font-size: 1.5rem;
    font-weight: bold;
    color: black;
}
.home-screen {
    width: 100%;
    height: 100%;
    object-fit: contain;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    background-color: black;
}


.desktop-container {
    width: 80%;
    height: 100%; 
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    padding: 20px;
    background-color: #008080;
    position: relative;
}
.taskbar {
    width: 80%;
    height: 50px;
    background-color: #c0c0c0;
    border-top: 2px solid black;
    position: absolute;
    bottom: 0;
    display: flex;
    align-items: center;
    padding: 5px;
}

.icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 80px;
    margin: 20px;
    cursor: pointer;
    text-align: center;
    color: white;
}

.icon-image {
    width: 50px;
    height: 50px;
    margin-bottom: 5px;
}

.icon-image.my-computer {
    background: url('mycomputer.png') no-repeat center center;
    background-size: contain;
    width: 90px;
    height: 90px;}

.icon-image.folder {
    background: url('file.png') no-repeat center center;
    background-size: contain;
    width: 90px;
    height: 90px;}

.resume-popup {
    width: 80%;
    height: 70%;
    background: white;
    border: 2px solid black;
    position: absolute;
    top: 15%;
    left: 10%;
    display: flex;
    flex-direction: column;
    z-index: 10;
}

.resume-header {
    background-color: #808080;
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 5px 10px;
    border-bottom: 2px solid black;
}

.close-button {
    background: none;
    border: none;
    color: white;
    font-size: 1rem;
    cursor: pointer;
}

.resume-iframe {
    width: 100%;
    height: 100%;
    border: none;
}


/* Contact Section Background */
.contact-section {
    background: url('tetris2.png') repeat-x;
    background-size: 320px;
    background-position: bottom;
    color: black;
    text-align: center;
    padding: 0 15% 10% 15%;
}

.contact-box {
    background-color: rgba(255, 255, 255, 0.9);
    border: 2px solid #ddd;
    padding: 20px;
    border-radius: 20px;
    box-shadow: 0 4px 8px rgba(255, 0, 0, 0.3);
    color: #000;
}

/* Contact Form Styling */
.contact-form {
    background-color: aliceblue;
    border: 1px solid antiquewhite;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.contact-form button[type="submit"] {
    background-color: green;
    border: none;
    font-size: 1.2rem;
    font-weight: bold;
    padding: 10px;
    transition: all 0.3s ease-in-out;
}

.contact-form button[type="submit"]:hover {
    background-color: #0056b3;
    transform: scale(1.05);
}

.contact-form {
    background-color: aliceblue;
    border: 1px solid antiquewhite;
}

.rubrik {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding-bottom: 10%;
}
.rubrik-cube {
    max-width: 50%;
    margin-bottom: 40px;
}
.rubrik-text {
    font-size: 2rem;
    font-weight: bolder;
    text-align: center;
    line-height: 3.5rem;
}

/* Flashing Button */
.flashing-button {
    animation: flash 1.5s infinite;
    animation-timing-function: ease-in-out;
}

@keyframes flash {
    0%, 100% {
        background-color: #28a745; 
        color: white;
        box-shadow: 0px 0px 10px #00ff3c;
    }
    50% {
        background-color: #1b6cc2; 
        color: white;
        box-shadow: 0px 0px 50px #007bff;
    }
}

.card {
    border-radius: 15px;
    background: #f9f9f9;
    padding: 20px;
}

.carousel-inner img {
    height: auto;
    object-fit: contain;
}

.container .row.align-items-center {
    padding: 50px 0 150px 0;
}

.container h2 {
    font-size: 2.7rem;
    color: #333;
}

.card-body {
    border-radius: 15px;
    background: #f9f9f9;
    padding: 20px;
    box-shadow: 0px 4px 20px rgba(0, 128, 0, 0.3);
    transition: all 0.3s ease-in-out;
}

.card-body:hover {
    transform: translateY(-5px);
    box-shadow: 0px 6px 25px rgba(0, 128, 0, 0.5);
}

.github-icon-link {
    color: #28a745; 
    font-weight: bold;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 5px; 
}

.github-icon-link i {
    font-size: 1.2rem;
}

.github-icon-link:hover {
    text-decoration: underline;
    color: #1b6cc2;
}

.projects {
    display: flex;
    align-items: center;

}

.joke {
    border: 2px solid black;
    background-color: aliceblue;
}

/* Research  Page */
.research-section {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    margin-top: -70px;
}

h1 .highlight {
    font-weight: 800;
    display: inline-block;
    color: #f59c0b;
    font-size: 7rem;
}
.dot {
    position: absolute;
    transform: translate(-50%, -50%);
    width: 1rem;
    height: 1rem;
    background-color: #f59c0b;
    border-radius: 50%;
    z-index: 1;
}
.publications-section {
    padding: 2rem 0;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.publication-pdf {
    border: 1px solid #ddd;
    box-shadow: 0 4px 10px rgba(0, 0, 255, 0.8);
    border-radius: 5px;
    overflow: hidden;
}

.publication-details {
    max-width: 50%;
    font-size: 1.2rem;
    line-height: 1.5;
}

.publication-details h4 {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
    color: #333;
}

.publication-details p {
    color: #555;
    font-size: 1.1rem;
    margin: 1rem;
}

.researchgate-icon-link {
    color: #28a745; 
    font-weight: bold;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 5px;
}

.researchgate-icon-link i {
    font-size: 1.2rem;
}

.researchgate-icon-link:hover {
    text-decoration: underline;
    color: #1b6cc2;
}


/* Shared container styles for both sections */
.conferences-section,
.experience-section {
    padding: 2rem 0;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

/* Shared details box styles */
.conference-details,
.experience-details {
    max-width: 50%;
    font-size: 1.2rem;
    line-height: 1.5;
}

.conference-details p,
.experience-details p {
    color: #555;
    font-size: 1.1rem;
    margin: 1rem 0;
}

.conference-details strong,
.experience-details strong {
    font-weight: bold;
    color: #333;
}

.conference-details hr,
.experience-details hr {
    border-top: 2px solid #ddd;
    margin: 1rem 0;
}
.fixed-carousel .carousel-inner {
  width: 640px;
  height: 480px;
  overflow: hidden;
}

.fixed-carousel .carousel-inner img {
  width: 100%;
  height: 100%;
  object-fit: cover; 
}

/* Experience Section */

/* ===== Experience Section ===== */

/* Banner container (cover photo) */
.banner-container {
  margin-top: 0px;
  padding-top: 0;
  position: relative;
  width: 100%;
  height: 300px;
  overflow: hidden;
}

.banner-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Profile header */
.profile-header {
  margin-top: -60px;
  padding: 0 30px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
}

/* Profile picture (large) */
.profile-pic-wrapper-large {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid #fff;
  background: #fff;
  z-index: 2;
}

.profile-pic-large {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Buttons beside profile */
.profile-btn {
  background-color: #007bff;
  color: #fff;
  font-weight: 600;
  border-radius: 7px;
  padding: 5px 20px;
  transition: all 0.3s ease;
  height: 40px;
}
.profile-btn:hover,
.profile-btn:active {
  background-color: #000;
  color: #fff;
}

/* Category tabs */
.category-tabs {
  margin-top: 60px;
  text-align: center;
}
.category-btn {
  background: none;
  border: black;
  padding: 10px 20px;
  font-weight: 600;
  cursor: pointer;
  border-radius: 4px;
  transition: background-color 0.3s;
}
.category-btn:hover,
.category-btn.active {
  background: #ddd;
}

.experience-section {
  padding: 20px;
}

.filter-buttons {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.filter-btn {
  background: #e4e6eb;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  transition: background-color 0.3s;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-bottom: 20px;

}

.filter-btn:hover {
  background: #d8dadf;
}

.filter-btn.active {
  background: #1877f2;
  color: white;
}

.feed-container {
  max-width: 480px; 
  margin: 0 auto;        
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 0 10px; 
}

.feed-item {
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 1px 2px rgba(40, 33, 189, 0.7);
  padding: 20px; 
}

.feed-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.feed-header h4 {
  font-size: 0.9rem;  
}

.feed-pic {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 15px;
}

.feed-sub, .feed-meta p {
  font-size: 0.8rem;
  color: #65676b;
}

.feed-title {
  font-size: 0.9rem;
  margin: 5px 0 6px;
}

.feed-text {
  font-size: 0.8rem;
  margin-bottom: 5px;
}

.feed-image {
  width: 100%;
  max-height: 100%;
  border-radius: 10px;
}
.feed-keywords {
  display: flex;
  gap: 8px;
  margin-top: 8px;
  padding-top: 6px;
  border-top: 1px solid #e4e6eb;
}

.feed-keywords .keyword {
  background: #f0f2f5;
  color: #050505;
  font-size: 0.8rem;
  padding: 4px 8px;
  border-radius: 12px;
  font-weight: 500;
}