*, *::before, *::after {
     box-sizing: border-box;
}
 body, html {
     margin:0;
     padding:0;
     min-height:100%;
     font-family:'Poppins',sans-serif;
     background:#fffdf6;
     color:#333;
     overflow-x:hidden;
     overflow-y:auto;
}
 nav {
     background: rgba(255,255,255,0.9);
     backdrop-filter: blur(8px);
     box-shadow:0 2px 10px rgba(0,0,0,0.1);
     position: sticky;
     top: 0;
     z-index: 10;
}
 nav .navbar-brand {
     font-weight:700;
     color:#fbbf24;
}
 nav .nav-link {
     font-weight:500;
     color:#333;
}
 nav .nav-link:hover {
     color:#fbbf24;
}
 .main-container {
     display:flex;
     flex-wrap:wrap;
     min-height:100vh;
}
 /* .left-side, .right-side {
     flex:1 1 50%;
     min-width:320px;
     padding:2rem 4rem;
} */
 .left-side {
     flex:1 1 45%;
     min-width:320px;
     padding:2rem 4rem;
     /* display:flex; */
     flex-direction:column;
     justify-content:center;
     background: linear-gradient(120deg, #fff9e6, #fff3cc, #ffe066);
}
 .right-side {
   flex:1 1 55%;
     min-width:320px;
     padding:2rem 4rem;
     display:flex;
     flex-direction:column;
     justify-content:center;
     align-items:center;
     min-height:100vh;
     padding:2rem 2rem;
}
 .left-side h1 {
     font-weight:500;
     color:#fbbf24;
     margin-bottom:20px;
       font-size: 2rem;
  line-height: 1.3;
}
 .left-side p {
     font-size:1.1rem;
     line-height:1.6;
}
 .left-side ul {
     list-style:none;
     padding:0;
     margin-top:20px;
}
 .left-side ul li {
     margin-bottom:10px;
     font-weight:500;
     position:relative;
     padding-left:25px;
}
 .left-side ul li::before {
     content:'★';
     color:#fbbf24;
     position:absolute;
     left:0;
     top:0;
}
 #registration {
     width:100%;
     max-width:100%;
     padding:25px 30px;
     background: rgba(255,255,255,0.95);
     border-radius:18px;
     box-shadow:0 8px 32px rgba(31,38,135,0.1);
     border:1px solid rgba(251,191,36,0.25);
     color:#333;
     transition:all 0.3s ease;
}
 #registration:hover {
     box-shadow:0 14px 55px rgba(251,191,36,0.35);
     border-color: rgba(251,191,36,0.4);
     background: rgba(255,255,255,0.97);
}
 #registration h2 {
     margin-bottom:1.7rem;
     color:#fbbf24;
}
 #registration .form-control, #registration textarea {
     background: rgba(255,255,255,0.15);
     border:none;
     border-radius:12px;
     padding:12px 15px;
     color:#333;
     font-weight:500;
     font-size:1rem;
     box-shadow: inset 1px 1px 3px rgba(0,0,0,0.08);
     resize: vertical;
     transition: all 0.3s ease;
}
 #registration .form-control:focus, #registration textarea:focus {
     background: rgba(255,255,255,0.25);
     box-shadow: 0 0 10px #fbbf24;
     outline:none;
}
 #registration button[type="submit"] {
     margin-top:22px;
     background: linear-gradient(45deg,#fcd34d,#fbbf24);
     border:none;
     border-radius:16px;
     padding:12px 0;
     width:100%;
     font-weight:700;
     font-size:1.1rem;
     color:#fff;
     cursor:pointer;
     box-shadow:0 4px 18px rgba(251,191,36,0.6);
     transition:all 0.3s ease;
}
 #registration button[type="submit"]:hover {
     background: linear-gradient(45deg,#fbbf24,#f59e0b);
}
 #response {
     margin-top:15px;
     font-weight:600;
     text-align:center;
}
/* Floating bubbles */
 #bubbles {
     position: fixed;
     inset:0;
     z-index:0;
     pointer-events:none;
     overflow:hidden;
}
 .bubble {
     position:absolute;
     border-radius:50%;
     opacity:0.15;
     background: linear-gradient(135deg,#fcd34d,#fbbf24);
     filter:drop-shadow(0 0 5px rgba(251,191,36,0.3));
     animation-iteration-count: infinite;
}
 .bubble.small{
     width:20px;
     height:20px;
     animation-name: floatUpSmall;
     animation-duration:14s;
}
 .bubble.medium{
     width:40px;
     height:40px;
     animation-name: floatUpMedium;
     animation-duration:20s;
}
 .bubble.large{
     width:70px;
     height:70px;
     animation-name: floatUpLarge;
     animation-duration:30s;
}
 @keyframes floatUpSmall {
    0%{
        transform:translateY(110vh);
        opacity:0;
    }
    30%{
        opacity:0.15;
    }
    100%{
        transform:translateY(-150px);
        opacity:0;
    }
}
 @keyframes floatUpMedium {
    0%{
        transform:translateY(110vh);
        opacity:0;
    }
    40%{
        opacity:0.12;
    }
    100%{
        transform:translateY(-180px);
        opacity:0;
    }
}
 @keyframes floatUpLarge {
    0%{
        transform:translateY(110vh);
        opacity:0;
    }
    50%{
        opacity:0.1;
    }
    100%{
        transform:translateY(-220px);
        opacity:0;
    }
}
/* Products grid */
#products {
  margin-top: 28px;
  display: grid;
  gap: 15px;
  grid-template-columns: repeat(3, 1fr); /* 3 products per row on desktop */
}
.product-card {
  display: flex;
  flex-direction: row; /* image left, text right */
  align-items: center;
  justify-content: flex-start;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 10px 14px;
  box-shadow: 0 8px 22px rgba(251, 191, 36, 0.15);
  cursor: pointer;
  transition: all 0.3s ease;
}
.product-card img {
  width: 65px;
  height: 65px;
  margin-right: 14px;
  border-radius: 12px;
  background: #fff;
  padding: 3px;
}
.product-card p {
  font-size: 1rem;
  font-weight: 500;
  margin: 0;
  text-align: left;
}
.product-card:hover {
  box-shadow: 0 12px 35px rgba(251, 191, 36, 0.5);
  transform: translateY(-3px);
}
.product-card.selected {
  border: 3px solid green;
  box-shadow: 0 0 25px 6px rgba(107, 224, 78, 0.5);
  transform: translateY(-4px);
}
/* Carousel */
 .product-carousel {
     margin-top:20px;
     overflow:hidden;
     position:relative;
     width:100%;
}
 .carousel-track {
     display:flex;
     gap:15px;
     width:max-content;
     animation: scroll 10s linear infinite;
}
 .carousel-item p {
     font-size:0.85rem;
     font-weight:500;
     margin:0;
     color:#333;
}
 .carousel-item:hover {
     transform: scale(1.1);
}
 @keyframes scroll {
     0% {
         transform: translateX(0);
    }
     100% {
         transform: translateX(-90%);
    }
}
 @media(max-width:992px){
     .main-container {
         flex-direction:column;
    }
     .left-side, .right-side {
         width:100%;
         padding:20px;
         min-height:auto;
    }
     #products {
         grid-template-columns:repeat(2,1fr);
    }
}
 @media(max-width:576px){
     #registration {
         max-width:100%;
         padding:20px;
    }
     #products {
         grid-template-columns:1fr;
         gap:12px;
    }
     .product-card {
         flex-direction:row;
         align-items:center;
         justify-content:flex-start;
         padding:10px 12px;
    }
     .product-card img {
         margin-right:10px;
         margin-bottom:0;
         max-width:60px;
         height:60px;
    }
     .product-card p {
         text-align:left;
         font-size:0.95rem;
    }
}
 @media(max-width:400px){
     #registration {
         padding:15px;
    }
     .product-card img {
         max-width:50px;
         height:50px;
    }
     .product-card p {
         font-size:0.85rem;
    }
}

.exhibition-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(135deg, #1e3a8a, #2563eb);
  padding: 15px 25px;
  border-radius: 15px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  margin-bottom: 25px;
  animation: fadeIn 1s ease;
}

.exhibition-logo {
  width: 180px;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 2px 6px rgba(255,255,255,0.4));
}

.exhibition-details {
  display: flex;
  gap: 15px;
}

.exhibit-card {
  background: #fbbf24;
  color: #000;
  padding: 26px 18px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 3px 6px rgba(0,0,0,0.2);
  transition: transform 0.3s ease;
}

.exhibit-card:hover {
  transform: scale(1.05);
}

.exhibit-card h4 {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 600;
  color: #000;
}

.exhibit-card span {
  font-size: 1.3rem;
  font-weight: 700;
  color: #1e3a8a;
}

.highlight {
  color: #f59e0b;
}

.left-side p, 
.left-side ul li {
  color: #000;
}

.visit-text {
  font-weight: 600;
  color: #fbbf24;
  margin-top: 10px;
}

.section-title {
  color: #fbbf24;
  margin-top: 30px;
  font-size: 1.3rem;
  border-left: 4px solid #fbbf24;
  padding-left: 10px;
}

/* Carousel styling */
.product-carousel {
  overflow: hidden;
  margin-top: 15px;
}

.carousel-track {
  display: flex;
  gap: 20px;
  animation: scrollLeft 30s linear infinite;
}

.slide {
  flex: 0 0 auto;
  text-align: center;
  text-decoration: none;
  transition: transform 0.3s ease;
}

.slide img {
  width: 261px;
  height: 261px;
  object-fit: contain;
  background: #ffffff;
  border-radius: 12px;
  padding: 10px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.slide:hover {
  transform: scale(1.08);
}

.slide p {
  color: #000;
  font-size: 0.9rem;
  margin-top: 8px;
}

/* Animations */
@keyframes scrollLeft {
  0% { transform: translateX(0); }
  100% { transform: translateX(-90%); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Responsive for small screens (mobile/tablet) */
@media (max-width: 768px) {
  .exhibition-info {
    padding: 15px 7px;           /* Slightly smaller padding for small screens */
  }
  .exhibition-logo {
  width: 140px;
  }
  .exhibit-card {
  padding: 10px 18px;
  }

}