html, body {
    height: 100%;
    margin: 0;
    font-family: 'Poppins', sans-serif;
    overflow-x: hidden;
    color: #fff;
    position: relative;
}

.video-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
}

#backgroundVideo {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: translate(-50%, -50%);
}

nav {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.7); /* Increased opacity */
    padding: 0.5em 2em;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-radius: 25px;
    margin: 20px auto;
    width: 80%;
    max-width: 1200px;
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
}

.logo {
    color: #fff;
    font-size: 28px;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.3s;
}

.logo:hover {
    color: #0A0;
}

.container {
    text-align: center;
    margin: 140px auto 20px auto;
    width: 90%;
    max-width: 400px;
    padding: 30px;
    background-color: rgba(0, 0, 0, 0.6); 
    border-radius: 16px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
}

.register {
    width: 100%;
    margin: auto;
}

form {
    display: flex;
    flex-direction: column;
}

label {
    font-size: 16px;
    color: #fff; 
    display: flex;
    flex-direction: column;
    align-items: start;
    margin-top: 10px;
}

.password-container {
    display: flex;
    align-items: center;
    position: relative;
}

.password-container input[type="password"] {
    flex: 1;
}

.password-container i {
    position: absolute;
    right: 10px;
    cursor: pointer;
    color: #bbb;
}

input[type="email"], input[type="password"], input[type="text"], textarea {
    width: 100%;
    padding: 12px 15px;
    margin: 10px 0;
    border: 2px solid transparent;
    border-radius: 8px;
    box-sizing: border-box;
    background-color: rgba(0, 0, 0, 0.8); 
    color: #fff;
    transition: border-color 0.3s, box-shadow 0.3s, background-color 0.3s;
}

input[type="email"]:hover, input[type="password"]:hover, input[type="text"]:hover, textarea:hover {
    border-color: #764ba2;
    box-shadow: 0 0 10px rgba(118, 75, 162, 0.7);
}

input[type="email"]:focus, input[type="password"]:focus, input[type="text"]:focus, textarea:focus {
    background-color: #444;
}

input[type="email"]::placeholder, input[type="password"]::placeholder, input[type="text"]::placeholder, textarea::placeholder {
    color: #bbb;
}

.button {
    width: 120px;
    height: 45px;
    margin: 35px auto;
    padding: 0 25px;
    font-weight: normal;
    font-size: 18px;
    color: #000;
    border: none;
    background-color: #fff;
    border-radius: 50px;
    cursor: pointer;
    transition: background-color 0.3s, font-weight 0.3s, transform 0.3s;
}

.button:hover {
    font-weight: 700;
    background-color: #e6e5e5;
    transform: scale(1.02);
}

.radio-group {
    display: flex;
    gap: 15px;
    margin: 8px 0;
}

#register-heading {
    font-size: 24px;
    margin-bottom: 20px;
    color: #fff; 
}

/* Responsive Design for Mobile */
@media (max-width: 768px) {
    .container {
        width: 90%;
        padding: 20px;
        margin-top: 160px;
    }
}