@charset "utf-8";



body {
  margin: 0;
  text-shadow:
    1px 1px 3px white,
    -1px 1px 3px white,
    -1px -1px 3px white,
    1px -1px 3px white;
}

.bubble-background {
    position: relative;
    background-image: url("../img/sea_1.jpg");
    height: 100vh;
    width: 100%;
    background-size: cover;
    overflow: hidden;
}

img {
    position: absolute;
    bottom: 100px;
    left: 450px;
}

.bubble {
    position: absolute;
    bottom: -50px;
    background-color: transparent;
    border-radius: 50%;
    pointer-events: none;
    box-shadow: inset 0 0 10px rgba(255, 255, 255, 0.2);
    animation: bubble 8s linear infinite;
}

.bubble::before {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    transform: scale(0.25) translate(-70%, -70%);
    background: radial-gradient(rgba(255, 255, 255, 0.5), transparent);
    border-radius: 50%;
}

@keyframes bubble {
    0% {
        transform: translatY(0);
        opacity: 1;
    }

    99% {
        opacity: 1;
    }

    100% {
        transform: translateY(-100vh);
        opacity: 0;
    }
}

.a {
  text-align: center;
}

.text {
  display: flex;
  justify-content: center;
  gap: 64px;
}

.b {
    width: 30%;
}

.b h2 {
    text-align: right;
}

.b p {
    text-align: right;
}

.c {
    width: 30%;
}

.btn01 {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 50px;
}

.btn01 a {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  width: 120px;
  height: 40px;
  color: white;
  font-size: 16px;
  font-weight: 200;
  text-decoration: none;
  transition: 0.3s;
  background: rgba(0, 0, 0, 0.581);
  border: 1px solid transparent;
  border-radius: 35px;
}