body {
    background-color: #f4f6f9;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    padding-bottom: 70px;
}
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: #ffffff;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 1000;
}
.bottom-nav a {
    color: #6c757d;
    text-decoration: none;
    font-size: 0.75rem;
    text-align: center;
    flex: 1;
}
.bottom-nav a.active {
    color: #0d6efd;
    font-weight: bold;
}
.bottom-nav i {
    font-size: 1.25rem;
    display: block;
    margin-bottom: 2px;
}
.card-loyalty {
    background: linear-gradient(135deg, #0d6efd, #00d2ff);
    color: white;
    border-radius: 15px;
}