html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: 'Segoe UI', sans-serif;
  overflow: hidden;
  background: linear-gradient(120deg, #f0f4f8, #d9e2ec);
  user-select: none; /* prevent text selection */
}

/* Outer carousel */
.outer-carousel-container {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

.outer-carousel-track {
  display: flex;
  height: 100%;
  transition: transform 0.5s ease-in-out;
}

#projects-container {
  transition: opacity 0.4s ease-in-out;
  opacity: 1;
}

/* Each project slide */
.project-slide {
  display: flex;
  flex-shrink: 0;
  width: 100vw;
  height: 100vh;
  align-items: center;
  justify-content: center;
  gap: 80px;
  padding: 40px;
  box-sizing: border-box;
}

/* Outer carousel arrows */
.arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 3rem;
  background: rgba(255,255,255,0.5);
  border-radius: 50%;
  color: #102a43;
  border: none;
  cursor: pointer;
  z-index: 10;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 0;
  transition: background 0.2s;
}

.arrow.left { left: 20px; }
.arrow.right { right: 20px; }

.arrow:hover {
  background: rgba(255,255,255,1);
}

/* Responsive adjustments */
@media (max-width: 1200px) {
  .project-slide {
    flex-direction: column;
    gap: 40px;
  }
}