@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600&family=Outfit:wght@300;400;600&display=swap');

/* Split Screen Base */
.split-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  display: flex;
  overflow: hidden;
  z-index: 9999;
  background-color: #000;
  transition: transform 1.2s cubic-bezier(0.77, 0, 0.175, 1), opacity 1.2s ease;
}

.split-container.slide-up {
  transform: translateY(-100vh);
  opacity: 0;
  pointer-events: none;
}

.split {
  position: relative;
  width: 50%;
  height: 100%;
  transition: width 0.7s cubic-bezier(0.25, 1, 0.5, 1);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

.split::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.8s cubic-bezier(0.25, 1, 0.5, 1), filter 0.8s ease;
  z-index: 1;
}

/* Left - Logical / Software */
.split.left::before {
  background: 
    radial-gradient(circle at 30% 50%, rgba(10, 25, 47, 0.9) 0%, rgba(2, 10, 20, 0.98) 100%),
    url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" opacity="0.04"><path d="M10 10h80v80H10z" fill="none" stroke="%2364ffda" stroke-width="1"/></svg>');
  background-size: cover, 50px 50px;
}

/* Right - Creative / Woodwork */
.split.right::before {
  background: 
    radial-gradient(circle at 70% 50%, rgba(60, 35, 20, 0.9) 0%, rgba(20, 10, 5, 0.98) 100%),
    url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" opacity="0.04"><circle cx="50" cy="50" r="40" fill="none" stroke="%23ffb84d" stroke-width="1"/></svg>');
  background-size: cover, 100px 100px;
}

.split:hover {
  width: 65%;
}

.split:hover::before {
  transform: scale(1.03);
  filter: brightness(1.2);
}

.split-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: white;
  transition: opacity 0.4s ease, transform 0.5s ease;
}

.split .split-content {
  opacity: 0.9;
}

.split:hover .split-content {
  opacity: 1;
  transform: translateY(-10px);
}

.split-title {
  font-family: "Outfit", sans-serif;
  font-size: 4rem;
  font-weight: 300;
  letter-spacing: 8px;
  text-transform: uppercase;
  margin-bottom: 1rem;
  /* text-shadow: 0 4px 12px rgba(0,0,0,0.5); */
  transition: color 0.4s ease, text-shadow 0.4s ease;
}

.split-subtitle {
  font-family: "Inter", sans-serif;
  font-size: 1rem;
  font-weight: 300;
  letter-spacing: 4px;
  text-transform: uppercase;
  transition: color 0.4s ease;
}

.split-subtitle.left {
  color: #64ffda;
}

.split-subtitle.right {
  color: #ffb84d;
}

.split.left:hover .split-title {
  color: #e6f1ff;
  text-shadow: 0 0 20px rgba(100, 255, 218, 0.4);
}
.split.left:hover .split-subtitle {
  color: #64ffda;
}

.split.right:hover .split-title {
  color: #ffecd2;
  text-shadow: 0 0 20px rgba(255, 184, 77, 0.4);
}
.split.right:hover .split-subtitle {
  color: #ffb84d;
}

/* Iconic element for brain half */
.split.right .icon {
  /* filter: drop-shadow(0 0 8px rgba(100,255,218,0.5)); */
  width: 70px;
  height: 70px;
  margin-bottom: 30px;
  opacity: 0.7;
  transition: all 0.5s ease;
  stroke: #ffb84d;
}
.split.left .icon {
  /* filter: drop-shadow(0 0 8px rgba(100,255,218,0.5)); */
  width: 70px;
  height: 70px;
  margin-bottom: 30px;
  opacity: 0.7;
  transition: all 0.5s ease;
  stroke: #64ffda;
}

.split.left .icon {
  stroke: #64ffda;
  filter: drop-shadow(0 0 8px rgba(100,255,218,0.5));
}

.split.left:hover .icon {
  transform: scale(1.1);
  opacity: 1;
  stroke: #64ffda;
  filter: drop-shadow(0 0 8px rgba(100,255,218,0.5));
}

.split.right:hover .icon {
  transform: scale(1.1);
  opacity: 1;
  stroke: #ffb84d;
  filter: drop-shadow(0 0 8px rgba(255,184,77,0.5));
}

/* Page content sections */
.content-section {
  display: none;
  opacity: 0;
  transform: translateY(30px);
}

.content-section.active {
  display: block;
  animation: contentFadeIn 1s forwards;
  animation-delay: 0.6s;
}

@keyframes contentFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Back button */
.btn-back {
  position: fixed;
  top: 40px;
  left: 40px;
  z-index: 10000;
  background: rgba(20, 20, 20, 0.6);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.15);
  padding: 12px 28px;
  border-radius: 30px;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all 0.4s ease;
  display: none;
}

.btn-back:hover {
  background: #fff;
  color: #000;
  border-color: #fff;
  transform: translateX(-5px);
  box-shadow: 0 0 20px rgba(255,255,255,0.2);
}

.btn-back.visible {
  display: block;
  animation: fadeInBack 0.5s forwards;
  animation-delay: 1s;
  opacity: 0;
}

@keyframes fadeInBack {
  to {
    opacity: 1;
  }
}

/* Aesthetically hiding scrollbar on split screen */
body.split-active {
  overflow: hidden;
  height: 100vh;
}

/* Responsive */
@media (max-width: 768px) {
  .split-container {
    flex-direction: column;
  }
  .split {
    width: 100%;
    height: 50%;
  }
  .split:hover {
    width: 100%;
    height: 60%;
  }
  .split-title {
    font-size: 2.5rem;
  }
}