/* =====================================================
   Buzz Menu Slider — Reusable Portfolio Component
   =====================================================
   Left: numbered project list    Right: live image preview
   Image transitions smoothly when hovering each row.

   Usage:
     <div class="buzz-menu-wrap">
       <div class="buzz-menu-nav">
         <div class="buzz-menu-item active" data-index="0">
           <span class="buzz-menu-num">01</span>
           <div class="buzz-menu-info">
             <h3 class="buzz-menu-title">Project Name</h3>
             <div class="buzz-menu-tags"><span class="buzz-menu-tag">Tag</span></div>
           </div>
           <svg class="buzz-menu-arrow">...</svg>
         </div>
       </div>
       <div class="buzz-menu-preview">
         <div class="buzz-menu-img-wrap">
           <img class="buzz-menu-img active" src="..." data-index="0">
         </div>
         <div class="buzz-menu-footer">
           <span class="buzz-menu-footer-title">Project Name</span>
           <a class="buzz-menu-footer-link" href="#">View Live</a>
         </div>
       </div>
     </div>

   Custom properties on .buzz-menu-wrap:
     --buzz-menu-height   total height of the component  (default 580px)
     --buzz-menu-split    left panel width               (default 42%)
   ===================================================== */

/* ---------- Wrapper ---------- */
.buzz-menu-wrap {
  --buzz-menu-height: 580px;
  --buzz-menu-split:  42%;
  display: grid;
  grid-template-columns: var(--buzz-menu-split) 1fr;
  height: var(--buzz-menu-height);
  border-radius: 1rem;
  overflow: hidden;
  border: 1px solid hsl(var(--border));
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.07);
}

/* ---------- Left: Nav panel ---------- */
.buzz-menu-nav {
  overflow-y: auto;
  overflow-x: hidden;
  border-right: 1px solid hsl(var(--border));
  background: hsl(var(--card));
  scrollbar-width: thin;
  scrollbar-color: hsl(var(--border)) transparent;
}
.buzz-menu-nav::-webkit-scrollbar { width: 4px; }
.buzz-menu-nav::-webkit-scrollbar-track { background: transparent; }
.buzz-menu-nav::-webkit-scrollbar-thumb { background: hsl(var(--border)); border-radius: 4px; }

/* Each row */
.buzz-menu-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  border-bottom: 1px solid hsl(var(--border));
  position: relative;
  transition: background 0.2s ease;
  text-decoration: none;
  color: inherit;
  user-select: none;
}
.buzz-menu-item:last-child { border-bottom: none; }

.buzz-menu-item:hover,
.buzz-menu-item.active {
  background: hsla(var(--primary) / 0.04);
}

/* Left accent bar */
.buzz-menu-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%) scaleY(0);
  width: 3px;
  height: 55%;
  background: var(--gradient-primary, linear-gradient(180deg, #f5820f, #ffc61a));
  border-radius: 0 3px 3px 0;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.buzz-menu-item:hover::before,
.buzz-menu-item.active::before {
  transform: translateY(-50%) scaleY(1);
}

/* Number */
.buzz-menu-num {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: hsl(var(--muted-foreground));
  min-width: 1.6rem;
  transition: color 0.2s;
  font-variant-numeric: tabular-nums;
}
.buzz-menu-item:hover .buzz-menu-num,
.buzz-menu-item.active .buzz-menu-num {
  color: hsl(var(--primary));
}

/* Info block */
.buzz-menu-info { flex: 1; min-width: 0; }

.buzz-menu-title {
  font-size: 0.98rem;
  font-weight: 700;
  color: hsl(var(--foreground));
  margin: 0 0 0.3rem;
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 0.2s;
}
.buzz-menu-item:hover .buzz-menu-title,
.buzz-menu-item.active .buzz-menu-title {
  color: hsl(var(--primary));
}

/* Tags */
.buzz-menu-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}
.buzz-menu-tag {
  font-size: 0.63rem;
  font-weight: 600;
  padding: 0.1rem 0.42rem;
  border-radius: 9999px;
  background: hsla(var(--primary) / 0.08);
  color: hsl(var(--primary));
  border: 1px solid hsla(var(--primary) / 0.18);
  letter-spacing: 0.03em;
  white-space: nowrap;
}

/* Arrow icon */
.buzz-menu-arrow {
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity 0.2s ease, transform 0.25s ease;
  color: hsl(var(--primary));
  flex-shrink: 0;
}
.buzz-menu-item:hover .buzz-menu-arrow,
.buzz-menu-item.active .buzz-menu-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ---------- Right: Preview ---------- */
.buzz-menu-preview {
  position: relative;
  overflow: hidden;
  background: hsl(var(--muted));
}

/* Image stack */
.buzz-menu-img-wrap {
  position: relative;
  width: 100%;
  height: 100%;
}

.buzz-menu-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(1.05);
  transition: opacity 0.55s ease, transform 0.65s ease;
  pointer-events: none;
}
.buzz-menu-img.active {
  opacity: 1;
  transform: scale(1);
}

/* Outgoing image fades + zooms out slightly */
.buzz-menu-img.leaving {
  opacity: 0;
  transform: scale(0.97);
  transition: opacity 0.35s ease, transform 0.35s ease;
}

/* Preview footer gradient overlay */
.buzz-menu-footer {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 3rem 1.75rem 1.5rem;
  background: linear-gradient(to top, rgba(0,0,0,0.78) 0%, rgba(0,0,0,0.3) 55%, transparent 100%);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  pointer-events: none;
}

.buzz-menu-footer-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  text-shadow: 0 2px 8px rgba(0,0,0,0.4);
  transition: opacity 0.3s ease;
}

.buzz-menu-footer-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 700;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.45);
  padding: 0.45rem 1.1rem;
  border-radius: 9999px;
  text-decoration: none;
  white-space: nowrap;
  pointer-events: all;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  background: rgba(255, 255, 255, 0.12);
  transition: background 0.2s, border-color 0.2s;
}
.buzz-menu-footer-link:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.8);
  color: #fff;
}
.buzz-menu-footer-link.hidden { display: none; }

/* ---------- Counter pill (top-right of preview) ---------- */
.buzz-menu-counter {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #fff;
  background: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 0.3rem 0.75rem;
  border-radius: 9999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  pointer-events: none;
  z-index: 2;
}

/* ---------- Mobile: single column, no preview pane ---------- */
@media (max-width: 767px) {
  .buzz-menu-wrap {
    grid-template-columns: 1fr;
    height: auto;
  }
  .buzz-menu-preview { display: none; }
  .buzz-menu-item { padding: 1rem 1.25rem; }
  .buzz-menu-title { white-space: normal; }
}