* {box-sizing: border-box}


html {
    margin: 0;
    padding: 0;
}

body {
    min-height: 100vh;
    background-color: #00123a;
}

main {
    width: 100%;
    max-width: 1024px;
    padding: 20px;
}

.d-box {
    height: auto;
    min-height: 600px;
}

.container h1 {
    color: #7bffff;
    height: 78px;
    border: 3px solid #333a4d;
    font-size: 60px;
    font-weight: bold;
    line-height: 1;
    text-shadow: 6px 3px 15px rgba(192, 238, 254, 1);
    text-decoration-color: #7bffff;
}

.container i.bi {
    width: 78px;
    height: 78px;
    color: #7bffff;
    border: 3px solid #333a4d;
    font-size: 60px;
    text-shadow: 6px 5px 15px rgb(69, 186, 225);
    text-decoration-color: #7bffff;
}

.container .content {
    z-index: 10;
    padding: 86px 66px;
}

.container p {
    color: #7bffff;
    text-decoration-color: #7bffff;
    text-shadow: 5px 5px 10px rgb(69, 186, 225);
    font-size: 35px;
    margin-top: 60px;
}

.d-box {
    height: 600px;
}

.border {
    border: none !important;
    height: 900px;
    width: 1200px;
    margin-right: 400px;
}

.d-box .img-frame {
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.button-40 {
  --glow-color: rgba(192, 238, 254, 1);
  --glow-spread-color: rgba(192, 238, 254, 1);
  --enhanced-glow-color: rgba(192, 238, 254, 1);
  --btn-color: #0e378a;
  border: .25em solid var(--glow-color);
  padding: 1em 3em;
  color: var(--glow-color);
  font-size: 15px;
  font-weight: bold;
  background-color: var(--btn-color);
  border-radius: 1em;
  outline: none;
  box-shadow: 0 0 1em .25em var(--glow-color),
        0 0 4em 1em var(--glow-spread-color),
        inset 0 0 .75em .25em var(--glow-color);
  text-shadow: 0 0 .5em var(--glow-color);
  position: relative;
  transition: all 0.3s;
  margin-top: 44px;
  }

.button-40::after {
  pointer-events: none;
  content: "";
  position: absolute;
  top: 120%;
  left: 0;
  height: 100%;
  width: 100%;
  background-color: var(--glow-spread-color);
  filter: blur(2em);
  opacity: .7;
  transform: perspective(1.5em) rotateX(35deg) scale(1, .6);
}

.button-40:hover {
  color: var(--btn-color);
  background-color: var(--glow-color);
  box-shadow: 0 0 1em .25em var(--glow-color),
        0 0 4em 2em var(--glow-spread-color),
        inset 0 0 .75em .25em var(--glow-color);
}

.button-40:active {
  box-shadow: 0 0 0.6em .25em var(--glow-color),
        0 0 2.5em 2em var(--glow-spread-color),
        inset 0 0 .5em .25em var(--glow-color);
}

.button-40 a {
    text-decoration: none;
}
 
span {
    text-shadow: #0e378a;
    color: white;
}

/*
for media
*/
.container h1 {
    font-size: clamp(24px, 5vw, 60px);
    height: auto;
    text-align: center;
}

.container p {
    font-size: clamp(18px, 4vw, 35px);
    text-align: center;
}
.container i.bi {
    width: clamp(40px, 10vw, 78px);
    height: clamp(40px, 10vw, 78px);
    font-size: clamp(30px, 6vw, 60px);
}

.button-40 {
    font-size: clamp(14px, 2vw, 15px);
    padding: 1em 2em;
}


@media (max-width: 768px) {
    .container .content {
        padding: 40px 20px;
    }

    .button-40 {
        width: 100%;
    }

    .d-box {
        min-height: 500px;
    }
}