body,
html {
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: hidden;
}

.portal-container {
    position: relative;
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: white;
}

#waves-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    filter: blur(10px);
    -webkit-filter: blur(10px);
}

.portal-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: -1;
}

.portal-content {
    z-index: 1;
    background: rgba(0, 0, 0, 0.3);
    padding: 40px;
    border-radius: 15px;
    width: 100%;
    max-width: 400px;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: #fff;
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-form input {
    width: 100%;
    padding: 15px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    font-size: 1rem;
    box-sizing: border-box;
    /* Add this */
}

.login-form input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.login-form input:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.7);
    background: rgba(255, 255, 255, 0.2);
}

.login-form button {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 8px;
    background-color: #007bff;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    transition: background-color 0.3s;
}

.login-form button:hover {
    background-color: #0056b3;
}

.error-message {
    color: #ff4d4d;
    margin-top: 15px;
    height: 20px;
    visibility: hidden;
}

h1 {
    font-size: 3rem;
    margin-bottom: 20px;
}