:root {
        --bg: #1e293b; --text: #f1f5f9; --accent: #facc15;
      }
      body {
        background-color: var(--bg); color: var(--text);
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        transition: background 0.4s, color 0.4s;
      }

      @font-face {
      font-family: 'MontserratCustom';
      src: url('cambria-math.ttf') format('truetype');
      font-weight: normal;
      font-style: normal;
      }

      .font-montserrat {
      font-family: 'MontserratCustom', sans-serif;
      }

      .custom-hover:hover {
      color: #00d8ff;
      transition: color 0.3s ease;
      }


.neumorphism {
  background: var(--bg); border-radius: 20px;
  box-shadow: 8px 8px 16px rgba(0,0,0,0.1), -8px -8px 16px rgba(255,255,255,0.1);
  transition: all 0.3s ease;
}
.neumorphism:hover {
  transform: scale(1.03);
  box-shadow: 10px 10px 20px rgba(0,0,0,0.15), -10px -10px 20px rgba(255,255,255,0.05);
}
.fade-in {
  opacity: 0; transform: translateY(30px); animation: fadeIn 1s forwards;
}
@keyframes fadeIn {
  to { opacity: 1; transform: translateY(0); }
}
.bounce { animation: bounce 1.5s infinite; }
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.card-3d { perspective: 1000px; }
.card-inner {
  transform-style: preserve-3d; transition: transform 0.6s;
}
.card:hover .card-inner {
  transform: rotateY(10deg) rotateX(10deg) scale(1.03);
}
.card img {
  transition: transform 0.6s, filter 0.3s;
}
.card:hover img {
  transform: scale(1.05) rotateZ(1deg); filter: brightness(1.05);
}
.glass {
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.1);
}
.glow-button:hover {
  box-shadow: 0 0 15px var(--accent), 0 0 25px var(--accent);
}
.theme-transition {
  transition: all 0.5s ease-in-out;
}

.aspect-video {
position: relative;
width: 100%;
padding-bottom: 56.25%; /* 16:9 */
}
.aspect-video > * {
position: absolute;
width: 100%;
height: 100%;
top: 0; left: 0;
}

/* Default: Mobile First */
.slide-img,
.swiper-slide {
  width: 100%;
  height: 300px;
  object-fit: cover;
  opacity: 1;
  transition: all 1s ease;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Desktop: min-width 768px */
@media (min-width: 768px) {
  .slide-img,
  .swiper-slide {
    height: 600px;
  }
}




.swiper-slide-active .slide-img.fade-in { opacity: 1; transform: translateY(0); }
.swiper-slide-active .slide-img.slide-in-left { opacity: 1; transform: translateX(0); }
.swiper-slide-active .slide-img.slide-in-right { opacity: 1; transform: translateX(0); }
.swiper-slide-active .slide-img.scale-in { opacity: 1; transform: scale(1); }
.swiper-slide-active .slide-img.rotate-in { opacity: 1; transform: rotate(0); }
.swiper-slide-active .slide-img.zoom-in { opacity: 1; transform: scale(1.1); }
.swiper-slide-active .slide-img.zoom-out { opacity: 1; transform: scale(0.9); }
.swiper-slide-active .slide-img.slide-up { opacity: 1; transform: translateY(0); }
.swiper-slide-active .slide-img.flip-in { opacity: 1; transform: rotateY(0); }
.swiper-slide-active .slide-img.flip-out { opacity: 1; transform: rotateX(0); }

.fade-in { transform: translateY(50px); }
.slide-in-left { transform: translateX(-100px); }
.slide-in-right { transform: translateX(100px); }
.scale-in { transform: scale(0.9); }
.rotate-in { transform: rotate(-15deg); }
.zoom-in { transform: scale(0.8); }
.zoom-out { transform: scale(1.5); }
.slide-up { transform: translateY(100px); }
.flip-in { transform: rotateY(90deg); }
.flip-out { transform: rotateX(90deg); }