.side-panel {
  position: fixed;
  top: 0;
  bottom: 0;
  width: 40px; /* collapsed width */
  background: var(--bg-pmb);
  color: white;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  transition: width 0.3s ease;
  overflow: hidden;
  z-index: 600;
}


    /* Hide full sidebar for mobile & tablets */
@media (max-width: 1024px) {
  .side-panel {
    display: none !important;
    visibility: hidden;
    opacity: 0;
  }
}

#panel-experience { left: 240px; }



.side-panel.open {
  width: 75%; /* expanded width */
}

.panel-tab {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  text-align: center;
  cursor: pointer;
  padding: 60px 5px;
  font-weight: bold;
  width: 100%;
  background: var(--bg-pmb);
  border-right: 1px solid #444;
}

.panel-content {
  width: 100%;
  padding: 10px 0 0 40px;
  background: var(--bg-pmb);
  overflow-y: auto;
  text-align: left;
  
}


/*-------------------------------
Experience Section / Work History
-------------------------------*/

/* Overview intro block */
.overview {
  position: relative;
  margin: 0 60px 2rem 0;
  padding: 40px;
}

/* Layout */
.resume-container {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}
.resume-column {
  flex: 1;
  min-width: 300px;
}
.resume-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

/* Timeline container */
.resume-timeline {
  position: relative;
  margin-left: 20px;
  padding-left: 30px;
  border-left: 3px solid var(--primary);
}

/* Each timeline card */
.timeline-item {
  position: relative;
  margin: 0 60px 2rem 0;
  padding: 30px 30px 30px 40px;
}

/* Background layer */
.timeline-item::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--bg-dns);
  box-shadow: 0 3px 8px 0 rgba(15, 15, 20, .2);
  z-index: 0;
}

/* Content */
.timeline-content {
  position: relative;
  z-index: 1;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .6s ease, transform .6s ease;
}
.timeline-item.show .timeline-content {
  opacity: 1;
  transform: translateY(0);
}

/* Timeline marker */
.timeline-marker {
  position: absolute;
  left: -40px;
  top: 20px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--primary);
  background: var(--bg-dark);
  box-shadow: 0 0 10px rgba(59,130,246,.9);
  z-index: 2;
  pointer-events: none;
  transition: transform .3s, box-shadow .3s;
}
.timeline-item:hover .timeline-marker {
  transform: scale(1.1);
  box-shadow: 0 0 14px rgba(59,130,246,1);
}

/* Text styling */
.subtitle { 
  font-size: .9rem; 
  display: block;
  color: var(--text-light);
}
.date {
  display: inline-block;
  font-size: .8rem;
  margin-bottom: .5rem;
  padding: 4px 12px;
  border: 1px solid var(--bg-dark);
  background-color: var(--bg-pmb);
  border-radius: 999px;
  line-height: 1.4;
}
.timeline-content p { font-size: .9rem; margin: .3rem 0 .6rem; }
.timeline-content a { font-size: .85rem; text-decoration: none; }

/* Expandable job description */
.expandable {
  max-height: 30px;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.expandable.expanded {
  max-height: 1000px;
}
.toggle-link {
  display: inline-block;
  margin-top: 8px;
  color: var(--primary);
  cursor: pointer;
  font-size: 14px;
  text-decoration: underline;
}