/* ==========================================================================
   SHOWCASE & PORTFOLIOS STYLESHEET (css/showcase.css)
   Dedicated styles for CACTS Student Projects & Case Studies (showcase/*.html)
   ========================================================================== */

/* Filter Buttons & Portfolio Grid (student-projects.html) */
.filter-btn-container {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 0.6rem 1.25rem;
  border-radius: 30px;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--accent-glow);
  border-color: var(--accent);
  color: var(--text-primary);
  box-shadow: 0 0 15px var(--accent-glow);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.project-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  box-shadow: 0 10px 30px -10px rgba(99, 102, 241, 0.15);
  background: var(--bg-card-hover);
}

.project-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0.7;
}

.project-visual {
  width: 100%;
  height: 150px;
  background: #020617;
  border-radius: 8px;
  margin-bottom: 1.25rem;
  overflow: hidden;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.project-card:hover .project-visual {
  border-color: var(--border-hover);
  box-shadow: 0 0 10px var(--primary-glow);
}

.project-badge {
  align-self: flex-start;
  padding: 0.25rem 0.75rem;
  background: var(--primary-glow);
  border: 1px solid var(--primary-light);
  color: var(--primary-light);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 20px;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.project-meta {
  display: flex;
  gap: 1.5rem;
  margin-top: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

.project-meta-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.project-links {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.project-links .btn {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  flex: 1;
  text-align: center;
}

.hide {
  display: none !important;
}

/* Timeline Components (internship-showcase.html) */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 4rem auto;
  padding: 0 1rem;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: var(--border);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  margin-bottom: 3rem;
  width: 50%;
  padding: 0 2rem;
  box-sizing: border-box;
}

.timeline-item:nth-child(odd) {
  left: 0;
  text-align: right;
}

.timeline-item:nth-child(even) {
  left: 50%;
  text-align: left;
}

.timeline-dot {
  position: absolute;
  top: 5px;
  width: 16px;
  height: 16px;
  background: var(--bg-main);
  border: 2px solid var(--accent);
  border-radius: 50%;
  z-index: 1;
  left: 50%;
  transform: translateX(-50%);
  box-shadow: 0 0 10px var(--accent);
}

.timeline-item:nth-child(odd) .timeline-dot {
  right: -8px;
  left: auto;
  transform: none;
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -8px;
  transform: none;
}

.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.timeline-content:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

.timeline-number {
  font-size: 1.25rem;
  color: var(--accent-light);
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.git-commit-box {
  background: #030712;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: monospace;
  padding: 1.25rem;
  margin: 2rem 0;
  font-size: 0.88rem;
  color: #38bdf8;
  overflow-x: auto;
}

@media (max-width: 768px) {
  .timeline::before {
    left: 20px;
  }

  .timeline-item {
    width: 100%;
    left: 0 !important;
    padding-left: 45px;
    padding-right: 0;
    text-align: left !important;
  }

  .timeline-dot {
    left: 12px !important;
    right: auto !important;
  }
}

/* Portfolio Case Studies (project-portfolios.html) */
.portfolio-list {
  display: flex;
  flex-direction: column;
  gap: 4rem;
  margin-top: 3.5rem;
}

.portfolio-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  padding: 3rem;
  transition: var(--transition);
}

.portfolio-item:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  box-shadow: 0 10px 30px rgba(20, 184, 166, 0.08);
}

.portfolio-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1.5rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.5rem;
  margin-bottom: 2rem;
}

.portfolio-tag {
  padding: 0.25rem 0.75rem;
  background: var(--primary-glow);
  border: 1px solid var(--primary-light);
  color: var(--primary-light);
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 20px;
  text-transform: uppercase;
}

.diagram-box {
  background: #030712;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  font-family: monospace;
  font-size: 0.88rem;
  color: #10b981;
  margin: 1.5rem 0;
  overflow-x: auto;
  line-height: 1.4;
}

.portfolio-specs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}

.spec-item h4 {
  color: var(--accent-light);
  font-size: 0.9rem;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.spec-item p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}