/* Projects Page Styles - Redesigned */

/* Hide default page title centering for projects */
.projects-page-title {
  text-align: center;
  margin-bottom: 2rem;
}

/* Table of Contents - Sticky and Subtle */
#toc {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 3rem;
  padding: 1rem;
  background: #f8f9fa;
  border-radius: 12px;
  position: sticky;
  top: 70px;
  z-index: 100;
  backdrop-filter: blur(10px);
  background: rgba(248, 249, 250, 0.95);
}

#toc li a {
  text-decoration: none;
  font-weight: 500;
  color: #495057;
  padding: 8px 16px;
  border-radius: 20px;
  transition: all 0.2s ease;
  display: inline-block;
  font-size: 0.9rem;
  border: 1px solid transparent;
}

#toc li a:hover {
  background-color: #007bff;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 123, 255, 0.2);
}

/* Project Grid - Improved Layout */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2.5rem;
  padding: 0;
  margin-top: 2rem;
}

/* Project Cards - Better Design */
.project-card {
  background: #fff;
  padding: 0;
  border-radius: 16px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid #e9ecef;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
  border-color: #dee2e6;
}

/* Project Header */
.project-header {
  padding: 1.5rem 1.5rem 1rem;
}

.project-card h2 {
  font-size: 1.5rem;
  margin: 0 0 0.5rem 0;
  color: #212529;
  text-align: left;
  font-weight: 700;
  line-height: 1.3;
}

/* Project Content Area */
.project-content {
  padding: 0 1.5rem 1.5rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.project-card p {
  margin: 0 0 1rem 0;
  text-align: left;
  line-height: 1.7;
  color: #495057;
  font-size: 0.95rem;
}

.project-card p:last-of-type {
  margin-bottom: 0;
}

/* Media Container */
.media-container {
  margin: 0 0 1rem 0;
  border-radius: 12px;
  overflow: hidden;
  background: #000;
}

video, img {
  width: 100%;
  display: block;
  border-radius: 0;
}

.video-container {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  height: 0;
  overflow: hidden;
  margin: 0 0 1rem 0;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* Collapsible Content */
.collapsible .content {
  display: none;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid #e9ecef;
}

.collapsible .content.active {
  display: block;
  animation: fadeIn 0.4s ease-in;
}

.collapsible .content img,
.collapsible .content video {
  margin-bottom: 1rem;
  border-radius: 8px;
}

.collapsible .content p {
  text-align: center;
  font-size: 0.875rem;
  color: #6c757d;
  margin-bottom: 1.5rem;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Toggle Button */
.toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
  background: #007bff;
  color: white;
  border: none;
  padding: 0.625rem 1.25rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s ease;
  font-family: inherit;
}

.toggle-btn:hover {
  background: #0056b3;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

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

.toggle-btn::after {
  content: '▼';
  font-size: 0.75rem;
  transition: transform 0.2s ease;
}

.toggle-btn.expanded::after {
  transform: rotate(180deg);
}

/* Links */
.project-card a {
  color: #007bff;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

.project-card a:hover {
  color: #0056b3;
  text-decoration: underline;
}

/* Hover effects for media */
.hover-play, .hover-zoom {
  transition: transform 0.3s ease;
}

.hover-play:hover, .hover-zoom:hover {
  transform: scale(1.02);
}

/* Responsive Design */
@media (max-width: 992px) {
  .project-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
  }
  
  #toc {
    position: static;
    margin-bottom: 2rem;
    padding: 0.75rem;
  }
}

@media (max-width: 768px) {
  .project-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .project-header,
  .project-content {
    padding: 1.25rem;
  }
  
  .project-card h2 {
    font-size: 1.35rem;
  }
  
  #toc {
    gap: 8px;
    padding: 0.75rem;
  }
  
  #toc li a {
    padding: 6px 12px;
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .project-header,
  .project-content {
    padding: 1rem;
  }
  
  .project-card h2 {
    font-size: 1.25rem;
  }
}