.contact-btn {
    background: #7D5FFF;
    color: #000000;
    font-size: 1.15rem;
    font-weight: 500;
    border: none;
    border-radius: 12px;
    padding: 12px 36px;
    cursor: pointer;
    box-shadow: 0 4px 20px 0 rgba(0,0,0,0.09);
    transition: all 0.22s cubic-bezier(.47,.74,.38,1.04), box-shadow 0.22s;
    position: relative;
    overflow: hidden;
}

.contact-btn:hover {
    background: #66D067;
    box-shadow: 0 5px 32px 0 #66d06744;
    transform: scale(1.07);
}

.contact-btn:active {
    background: #572ccb;
    transform: scale(0.98);
}

body {
    font-family: 'Inter', Arial, sans-serif;
    background: white;
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

.logo-icon {
    font-size: 2rem;
}

.navbar-brand {
    font-weight: bold;
}

.nav-link {
    font-weight: 500;
    margin-right: 18px;
}

.navbar .btn {
    border-radius: 20px;
    padding-left: 20px;
    padding-right: 20px;
}

.main-content {
    margin-top: 80px;
}

.display-4 {
    font-size: 2.9rem;
}

.gradient-btn {
    background: linear-gradient(to right, #36d1c4, #0a53ec 85%);
    border: none;
    padding: 12px 36px;
    color: #fff;
    font-weight: 600;
    border-radius: 25px;
    transition: background 0.3s;
}

.gradient-btn:hover {
    background: linear-gradient(to right, #0a53ec, #36d1c4 85%);
    color: #fff;
}

.main-img {
    max-width: 85%;
    border-radius: 16px;
    margin-top: 30px;
    box-shadow: 0 4px 28px rgba(0,0,0,0.08), 0 1.5px 5px rgba(0,0,0,0.09);
}







.molecule-section {
    background: #23343b;
    color: #fff;
    text-align: center;
    padding: 90px 25px 80px 25px;
    margin-top: 64px;
}
.molecule-icon {
    margin-bottom: 25px;
    animation: moleculeBounce 1.2s ease;
}

@keyframes moleculeBounce {
    0% {transform: translateY(-20px); opacity: 0;}
    60% {transform: translateY(10px);}
    90% {transform: translateY(-2px);}
    100% {transform: translateY(0); opacity: 1;}
}

.molecule-section h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 18px;
    letter-spacing: .5px;
}

.molecule-section p {
    font-size: 1.3rem;
    margin-bottom: 36px;
    color: #f9f9f9;
}

.molecule-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 12px;
}

.buy-btn, .read-btn {
    font-size: 1.15rem;
    font-weight: 500;
    border: none;
    border-radius: 12px;
    
    cursor: pointer;
    box-shadow: 0 4px 20px 0 rgba(0,0,0,0.08);
    transition: all 0.2s cubic-bezier(.47,.74,.38,1.04);
}

.buy-btn {
    background: #7D5FFF;
    color: #fff;
}
.buy-btn:hover {
    background: #66D067;
    box-shadow: 0 5px 32px 0 #66d06733;
}

.read-btn {
    background: #fff;
    color: #23343b;
    border: 1.5px solid #e8e8e8;
}
.read-btn:hover {
    background: #FBCD61;
    color: #23343b;
}






body {
  font-family: Arial, sans-serif;
  padding: 20px;
}

.product, .cart {
  border: 1px solid #333;
  padding: 20px;
  margin-bottom: 20px;
  max-width: 400px;
}

button {
  padding: 10px 15px;
  cursor: pointer;
  background-color: #7D5FFF;
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 16px;
}

button:hover {
  background-color: #66D067;
}

.hidden {
  display: none;
}