/* Timeline custom component */

html, body, .container {
  overflow: visible !important;
}

.timeline-card {
  position: relative;
  margin-left: 16px; }

.timeline-card:before {
  content: '';
  display: inline-block;
  position: absolute;
  background-color: #fff;
  border-radius: 100%;
  width: 24px;
  height: 24px;
  top: 16px;
  left: -12px;
  border: 5px solid;
  z-index: 2; }

.timeline-body {
  border-left: 2px solid #E6E9ED; }

.timeline-card-primary:before {
  border-color: var(--bs-primary); }

.timeline-card-info:before {
  border-color: var(--bs-info); }

.timeline-card-secondary:before {
  border-color: var(--bs-secondary); }

.timeline-card-success:before {
  border-color: var(--bs-teal); }

html {
  scroll-behavior: smooth; }

html, body {
  overflow-x: hidden; }

.container {
  max-width: 1140px;
  overflow: visible !important; /* Ensure no hidden or scrolling overflow is applied */
}

.site-title {
  font-size: 1.25rem;
  line-height: 2.5rem; }

.nav-link {
  padding: 0;
  font-size: 1rem;
  line-height: 2.5rem;
  color: inherit;
  opacity: 0.8; }

  .header-social .nav-link {
    font-size: 2rem; /* Increase icon size */
    color: #ffffff;  /* Set icon color to white for better contrast */
    padding: 0.5rem;
    background-color: rgba(0, 0, 0, 0.5); /* Semi-transparent background for better visibility */
    border-radius: 50%; /* Make the icon background circular */
    margin-right: 15px; /* Add space between icons */
    transition: background-color 0.3s ease, transform 0.3s ease;
  }
  

  
.nav-link:hover,
.nav-link:focus {
  color: inherit;
  opacity: 1; }

.nav-item + .nav-item {
  margin-left: 1rem; }

.cover {
  height: 500px; }

.cover > img {
  -o-object-fit: cover;
     object-fit: cover;
  width: auto; }

.progress-bar {
  text-transform: uppercase;
  font-size: 10px;
  letter-spacing: 1px; }

.text-small {
  font-size: 0.85rem; }

.text-teal {
  color: var(--bs-teal); }

footer a:not(.nav-link) {
  color: inherit;
  border-bottom: 1px dashed;
  text-decoration: none;
  cursor: pointer; }

@media (min-width: 48em) {
  .site-title {
    float: left; }
  .site-nav {
    float: right; } }

@media (max-width: 767px) {
  /* disable animations on mobile */
  [data-aos] {
    opacity: 1 !important;
    transform: translate(0) scale(1) !important; }
  .p-5 {
    padding: 2.5rem 2rem !important; }
  .portfolio-section .m-5 {
    margin: 2rem 0 1rem !important; }
  .portfolio-reverse {
    flex-direction: column-reverse; }
  .portfolio-reverse .text-end {
    text-align: start !important; } }

@media print {
  [data-aos] {
    opacity: 1 !important;
    transform: translate(0) scale(1) !important; }
  body.bg-light {
    background-color: #fff !important; }
  .container {
    width: auto;
    max-width: 100%;
    padding: 0; }
  .cover {
    height: 360px;
    margin-bottom: 1.5rem; }
  .cover > img {
    display: none; }
  .shadow-1-strong {
    box-shadow: none !important; }
  .resume-container > .my-5 {
    margin: 0 !important; }
  .my-5.p-5 {
    padding: 1.5rem 0 !important; }
  .about-section {
    padding: 0 !important; }
  .skills-section,
  .work-experience-section,
  .education-section,
  .portfolio-section,
  .reference-section,
  .contact-section {
    padding: 0 !important; }
  .page-break {
    padding-top: 5rem;
    page-break-before: always; } }

/* Ensure the images fit well in their columns */
.img-fluid {
  border-radius: 8px;
}

/* Style for project titles */
.fw-bold {
  font-weight: bold;
}

/* Styling for the button */
.btn-primary {
  background-color: #17a2b8;
  border-color: #17a2b8;
}

.btn-primary:hover {
  background-color: #138496;
  border-color: #117a8b;
}

/* Add some margin between rows */
.row.mb-4 {
  margin-bottom: 2rem;
}

#contact {
  background-color: #f8f9fa; /* Light background for consistency */
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1); /* Soft shadow for depth */
}

#contact h2 {
  font-weight: 300;
  color: #343a40; /* Dark grey for titles */
}

#contact ul {
  list-style: none;
  padding-left: 0;
}

#contact li {
  margin-bottom: 15px;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
}

#contact a {
  color: #007bff; /* Bootstrap blue */
  text-decoration: none;
}

#contact a:hover {
  text-decoration: underline;
}

#contact i {
  margin-right: 10px;
  font-size: 1.5rem;
  color: #6c757d; /* Light grey for icons */
}

#hobbies {
  background-color: #f8f9fa; /* Same as contact section */
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1); /* Soft shadow for depth */
}

#hobbies h2 {
  font-weight: 300;
  color: #343a40; /* Same color scheme as the rest */
}

#hobbies p {
  font-size: 1.1rem;
  margin-bottom: 20px;
}

#hobbies ul {
  list-style: none;
  padding-left: 0;
}

#hobbies li {
  margin-bottom: 10px;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
}

#hobbies i {
  margin-right: 10px;
  font-size: 1.5rem;
  color: #6c757d; /* Light grey for icons */
}

/* Sticky header */
header#main-header {
  position: sticky;
  top: 0;
  z-index: 9999; /* Ensure it stays on top of other elements */
  background-color: #fff; /* Ensure the background color is consistent */
  width: 100%; /* Full width of the viewport */
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1); /* Optional: subtle shadow for aesthetic */
}

.site-title {
  font-size: 1.25rem;
  line-height: 2.5rem;
}

.nav {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  justify-content: flex-end;
}

.nav-item {
  margin-left: 20px;
}

.nav-link {
  color: #333; /* Main text color */
  text-decoration: none;
  padding: 10px 15px;
  font-size: 1rem;
  line-height: 2.5rem;
  transition: color 0.3s ease-in-out;
}

.nav-link:hover {
  color: #007bff; /* Bootstrap blue for hover */
}

.parent-class {
  position: static !important; /* Ensure no parent has position: relative */
}

/* GitHub Button Styling */
.btn-github {
  background-color: #24292e;
  border-color: #24292e;
  color: #fff;
  transition: all 0.3s ease;
}

.btn-github:hover {
  background-color: #1e2124;
  border-color: #1e2124;
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(36, 41, 46, 0.3);
}

.btn-github:focus,
.btn-github:active {
  background-color: #1e2124;
  border-color: #1e2124;
  color: #fff;
  box-shadow: 0 0 0 0.2rem rgba(36, 41, 46, 0.25);
}

/* Alternative: Style existing secondary buttons when they're GitHub links */
a[href*="github.com"].btn-secondary {
  background-color: #24292e;
  border-color: #24292e;
  color: #fff;
}

a[href*="github.com"].btn-secondary:hover {
  background-color: #1e2124;
  border-color: #1e2124;
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(36, 41, 46, 0.3);
}

:root{
  --btn-radius: 14px;
  --btn-pad-y: .6rem;
  --btn-pad-x: 1rem;
  --btn-shadow: 0 4px 12px rgba(0,0,0,.08);
  --btn-shadow-hover: 0 8px 20px rgba(0,0,0,.12);
}

.btn{
  border-radius: var(--btn-radius) !important;
  padding: var(--btn-pad-y) var(--btn-pad-x) !important;
  font-weight: 600;
  letter-spacing: .2px;
  border-width: 1px;
  box-shadow: var(--btn-shadow);
  transition:
    transform .15s ease,
    box-shadow .2s ease,
    background-color .2s ease,
    border-color .2s ease,
    color .2s ease;
  will-change: transform;
}

.btn:hover{ transform: translateY(-1px); box-shadow: var(--btn-shadow-hover); }
.btn:active{ transform: translateY(0); box-shadow: var(--btn-shadow); }

.btn:focus-visible{
  outline: none;
  /* focus ring using your teal */
  box-shadow: 0 0 0 4px rgba(23,162,184,.25), var(--btn-shadow-hover);
}

/* Primary (your teal, with a subtle gradient) */
.btn-primary{
  background: linear-gradient(180deg, #17a2b8, #1493a6);
  border-color: #138496;
  color: #fff;
}
.btn-primary:hover{
  background: linear-gradient(180deg, #1493a6, #117f90);
  border-color: #0f6f7e;
}

/* Secondary (soft, modern gray) — use this for arXiv / Project Page / etc. */
.btn-secondary{
  background: #777b83;
  color: #111827;
  border-color: #575a61;
}
.btn-secondary:hover{
  background: #e7e9ee;
  border-color: #575a61;
  color: #0f172a;
}

/* Optional: outline/ghost style */
.btn-outline{
  background: transparent;
  color: #111827;
  border-color: #6b7077;
}
.btn-outline:hover{ background: #f3f4f6; }

/* Optional: pill shape */
.btn-pill{ border-radius: 9999px !important; }

/* Optional sizes */
.btn-sm{ padding: .45rem .8rem !important; border-radius: 12px !important; }
.btn-lg{ padding: .8rem 1.2rem !important; border-radius: 16px !important; }

/* Nice spacing for icon-leading buttons */
.btn > i:first-child{ margin-right: .4rem; }

/* Keep button colors the same after click (visited) */
a.btn.btn-primary:link,
a.btn.btn-primary:visited{
  color:#fff;
  background: linear-gradient(180deg, #17a2b8, #1493a6);
  border-color:#138496;
}

a.btn.btn-secondary:link,
a.btn.btn-secondary:visited{
  color:#111827;
  background:#f3f4f6;
  border-color:#808185;
}

/* If using the black GitHub style, keep it consistent too */
a.btn.btn-github:link,
a.btn.btn-github:visited{
  color:#fff;
  background-color:#24292e;
  border-color:#24292e;
}

/* Project Page — gradient accent with subtle shine */
.btn-project{
  position: relative;
  overflow: hidden;
  color:#fff !important;
  background: linear-gradient(135deg, #17a2b8, #7c3aed); /* teal → violet */
  border: 0;
  box-shadow:
    0 8px 20px rgba(124,58,237,.25),
    0 2px 6px rgba(23,162,184,.25);
  transition:
    transform .15s ease,
    box-shadow .2s ease,
    filter .2s ease,
    background .2s ease;
}

.btn-project:hover{
  transform: translateY(-1px);
  filter: saturate(1.05);
  background: linear-gradient(135deg, #1493a6, #6d28d9);
  box-shadow:
    0 10px 24px rgba(124,58,237,.28),
    0 3px 8px rgba(23,162,184,.28);
}

.btn-project:active{
  transform: translateY(0);
}

/* Focus ring */
.btn-project:focus-visible{
  outline: none;
  box-shadow:
    0 0 0 4px rgba(124,58,237,.25),
    0 8px 20px rgba(0,0,0,.12);
}

/* Soft “shine” sweep on hover */
.btn-project::after{
  content:'';
  position:absolute;
  inset:0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.35), transparent);
  transform: translateX(-100%);
  transition: transform .45s ease;
  pointer-events:none;
}
.btn-project:hover::after{ transform: translateX(100%); }

/* Keep colors after click (visited) */
a.btn.btn-project:link,
a.btn.btn-project:visited{
  color:#fff;
  background: linear-gradient(135deg, #17a2b8, #7c3aed);
  border:0;
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce){
  .btn-project,
  .btn-project::after{
    transition: none;
  }
}