* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body, html {
  height: 100%;
  font-family: "Lora", sans-serif;
  font-weight: 600;
  font-style: normal;
  text-transform: uppercase;
  letter-spacing: 3px;
}

.background {
  background-image: url('parallax.jpg');
  background-size: cover;
  background-attachment: fixed;
  background-position: center;
  filter: brightness(0.7);
  height: 100%;
  position: fixed;
  width: 100%;
  z-index: -1;
}

.container {
  text-align: center;
  padding: 40px 20px;
}

.logo {
  width: 100px;
  height: auto;
  margin-bottom: 20px;
}

.rmb-title-container {
  margin: 0 auto; /* horizontally centers it */
  text-align: center;
  max-width: 600px;
  border-radius: 12px;
  background-color: rgba(17, 17, 17, 0.55);
}

.trade {
  font-size: 0.5em;
  vertical-align: super;
}

.rmb-title {
  color: #cc66ff;
}

h1 {
  color: white;
  font-size: 2em;
  margin-bottom: 30px;
}

.btn {
  display: block;
  width: 80%;
  max-width: 400px;
  margin: 10px auto;
  padding: 15px 25px;
  color: white;
  font-weight: bold;
  font-size: 1.1em;
  text-align: center;
  text-decoration: none;
  border-radius: 12px;
  transition: all 0.3s ease;
  position: relative;
}

.btn i {
  margin-right: 12px;
}

.btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  border-radius: 12px;
  z-index: -1;
  transition: all 0.3s ease;
  opacity: 0.55;
}

.btn-purple::before { background: linear-gradient(90deg, #b084dc, #8a5fbf); }
.btn-green::before { background: linear-gradient(90deg, #50c878, #007f3f); }
.btn-black::before { background: linear-gradient(90deg, #444, #111); }
.btn-red::before { background: linear-gradient(90deg, #ff7f7f, #e63946); }
.btn-yellow::before {background: linear-gradient(90deg, #fcd34d, #fbbf24);}
.btn-blue::before { background: linear-gradient(90deg, #70a1ff, #1e90ff); }
.btn-gray::before { background: linear-gradient(90deg, #ccc, #888); }
.btn-pink::before { background: linear-gradient(90deg, #ffb6c1, #ff69b4); }
.btn-lightgreen::before { background: linear-gradient(90deg, #b4ec51, #429321); }

.btn:hover {
  transform: scale(1.2);
}

.btn-purple:hover::before,
.btn-green:hover::before,
.btn-black:hover::before,
.btn-red:hover::before,
.btn-yellow:hover::before,
.btn-blue:hover::before,
.btn-gray:hover::before,
.btn-pink:hover::before,
.btn-lightgreen:hover::before {
  background: linear-gradient(270deg, inherit, inherit);
  opacity: 1;
}