body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background: #07111f;
  color: #fff;
}

/* SECTION */
.join-section {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 70vh;
  padding: 20px;
}

/* FORM CARD */
.form-container {
  width: 100%;
  max-width: 450px;
  padding: 30px;
  border-radius: 12px;
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(12px);
  box-shadow: 0 0 25px rgba(0,195,255,0.2);
  animation: fadeIn 1s ease;
}

.form-container h2 {
  color: #e5e9ea;
  margin-bottom: 10px;
}

.form-container p {
  font-size: 14px;
  margin-bottom: 20px;
}

/* INPUT STYLE */
.input-group {
  position: relative;
  margin-bottom: 20px;
}

.input-group input,
.input-group textarea {
  width: 100%;
  padding: 12px;
  background: #0b1b2b;
  border: 1px solid #00c3ff;
  border-radius: 6px;
  color: #fff;
  outline: none;
}

.input-group label {
  position: absolute;
  top: 12px;
  left: 12px;
  font-size: 14px;
  color: #aaa;
  pointer-events: none;
  transition: 0.3s;
}

/* FLOAT LABEL */
.input-group input:focus + label,
.input-group input:valid + label,
.input-group textarea:focus + label,
.input-group textarea:valid + label {
  top: -10px;
  left: 8px;
  background: #07111f;
  padding: 0 5px;
  font-size: 12px;
  color: #00c3ff;
}

/* BUTTON */
button {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 6px;
  background: linear-gradient(45deg, #00c3ff, #007bff);
  color: #000;
  font-weight: bold;
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  transform: scale(1.05);
  box-shadow: 0 0 15px #00c3ff;
}

/* LOADER */
.loader {
  display: none;
  margin: 15px auto;
  border: 4px solid #0b1b2b;
  border-top: 4px solid #00c3ff;
  border-radius: 50%;
  width: 30px;
  height: 30px;
  animation: spin 1s linear infinite;
}

/* RESPONSE */
#responseMsg {
  text-align: center;
  margin-top: 10px;
}

/* ANIMATIONS */
@keyframes spin {
  100% { transform: rotate(360deg); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}