body {
    font-family: 'Poppins', sans-serif;
    background-color: #f8f9fa;
    color: #343a40;
}
.hero-section {
    padding: 100px 0;
    background-color: #e9ecef;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}
.hero-section h1 {
    color: #212529;
}
.card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}
.navbar-brand {
    font-weight: bold;
}
.btn-primary {
    background-color: #007bff;
    border-color: #007bff;
    transition: background-color 0.3s ease;
}
.btn-primary:hover {
    background-color: #0056b3;
    border-color: #0056b3;
}
.template-card {
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}
.template-card.active {
    border-color: #007bff;
    box-shadow: 0 0 10px rgba(0,123,255,0.5);
}
.admin-sidebar {
    background-color: #343a40;
    color: white;
    min-height: 100vh;
}
.admin-sidebar .nav-link {
    color: white;
    opacity: 0.8;
}
.admin-sidebar .nav-link:hover {
    opacity: 1;
}
.qr-container {
    padding: 2rem;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}