:root {
    --md-primary: #6200ea;
    --md-secondary: #03dac6;
    --md-error: #b00020;
    --md-white: #ffffff;
    --md-shadow: rgba(0, 0, 0, 0.2);
}

.floating-btn {
    position: fixed;
    bottom: 20px;
    z-index: 1000;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 4px 4px 10px var(--md-shadow);
    transition: all 0.3s ease;
    color: var(--md-white);
    font-size: 24px;
    border: none;
    outline: none;
}
.floating-btn:hover {
    transform: scale(1.15);
}
.left-btn {
    left: 20px;
    background-color: var(--md-error);
}
.right-btn {
    right: 20px;
    background-color: var(--md-primary);
}
.social-menu {
    position: fixed;
    right: 20px;
    bottom: 90px;
    display: none;
    z-index: 1000;
}
.social-menu a {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 10px;
    color: var(--md-white);
    font-size: 22px;
    width: 55px;
    height: 55px;
    border-radius: 50%;
    transition: all 0.3s ease;
    box-shadow: 2px 2px 8px var(--md-shadow);
}
.social-menu a:hover {
    transform: scale(1.1);
}
.whatsapp { background-color: #25D366; }
.facebook { background-color: #1877F2; }
.twitter { background-color: #1DA1F2; }