body {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', sans-serif;
  background: black;
  color: #111;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
}

#bg-video {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  object-fit: cover;
  z-index: -1;
  filter: brightness(0.3);
}

.container {
  width: 100%;
  max-width: 1000px;
  padding: 40px 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.logo {
  font-size: 3rem;
  font-weight: bold;
  color: #00fdfd;
  text-shadow: 0 0 25px #00fdfd;
  margin-bottom: 10px;
}

.slogan {
  font-size: 1.1rem;
  margin-bottom: 30px;
  color: #ffffff;
}

.box {
  background: rgba(0, 0, 0, 0.3); /* TRANSPARENT black */
  padding: 25px 20px;
  border-radius: 15px;
  width: 90%;
  max-width: 400px;
  margin-bottom: 30px;
  box-shadow: 0 0 15px cyan;
  color: white;
  display: flex;
  flex-direction: column;
  align-items: center;
  backdrop-filter: blur(10px);
}

.box input {
  width: 100%;
  padding: 12px;
  margin: 10px 0;
  font-size: 1rem;
  border: none;
  border-radius: 10px;
  background: #ffffff;
  color: #000;
}

.box button {
  width: 100%;
  padding: 12px;
  font-size: 1rem;
  background-color: #00fdfd;
  color: black;
  font-weight: bold;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  box-shadow: 0 0 12px #00fdfd;
  transition: all 0.3s ease;
  margin-top: 12px;
}

.box button:hover {
  transform: scale(1.05);
}

.terms-check {
  margin-top: 12px;
  font-size: 0.85rem;
  color: #ffffff;
  text-align: center;
}

.terms-check a {
  color: #00fdfd;
  text-decoration: none;
}

.toggle {
  margin-top: 12px;
  font-size: 0.85rem;
  color: #ffffff;
}

.toggle a {
  color: #00fdfd;
  text-decoration: none;
}

.btc-info {
  background-color: rgba(0, 0, 0, 0.3);
  padding: 30px 20px;
  margin: 40px auto;
  border-radius: 15px;
  width: 95%;
  max-width: 900px;
  text-align: left;
  box-shadow: 0 0 25px #00fdfd;
  color: #fff;
  line-height: 1.7;
  font-size: 1rem;
}

.btc-info h2 {
  color: #00fdfd;
  font-size: 1.8rem;
  margin-bottom: 15px;
  text-align: center;
}

footer {
  margin-top: 60px;
  text-align: center;
  color: #ccc;
  font-size: 0.85rem;
  padding: 20px;
}
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10000;
}

.modal.hidden {
  display: none;
}

.modal-content {
  background: #111;
  color: #fff;
  padding: 30px;
  border-radius: 15px;
  max-width: 600px;
  width: 90%;
  box-shadow: 0 0 20px cyan;
  text-align: left;
  position: relative;
  max-height: 80vh;
  overflow: hidden;
}

.modal-content h2 {
  color: #00fdfd;
  margin-top: 0;
}

.modal-content .close-btn {
  position: absolute;
  top: 10px;
  right: 20px;
  font-size: 1.5rem;
  color: #fff;
  cursor: pointer;
}

.modal-scroll {
  overflow-y: auto;
  max-height: 70vh;
  padding-right: 10px;
}
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10000;
}

.modal.hidden {
  display: none;
}

.modal-content {
  background: #111;
  color: #fff;
  padding: 30px;
  border-radius: 15px;
  max-width: 600px;
  width: 90%;
  box-shadow: 0 0 20px cyan;
  text-align: left;
  position: relative;
  max-height: 80vh;
  overflow: hidden;
}

.modal-content h2 {
  color: #00fdfd;
  margin-top: 0;
}

.modal-content .close-btn {
  position: absolute;
  top: 10px;
  right: 20px;
  font-size: 1.5rem;
  color: #fff;
  cursor: pointer;
}

.modal-scroll {
  overflow-y: auto;
  max-height: 70vh;
  padding-right: 10px;
}