body {
    font-family: Arial, sans-serif;
    background: linear-gradient(to right, #ff7f7f, #ffffff);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.login-container {
    background-color: #ffffff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

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

.login-form,
.register-form {
    display: flex;
    flex-direction: column;
}

.input-group {
    margin-bottom: 15px;
    text-align: left;
}

.input-group label {
    margin-bottom: 5px;
    font-weight: bold;
}

.input-group input,
.input-group select {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

button {
    padding: 10px;
    border: none;
    border-radius: 5px;
    background-color: #ff4d4d;
    color: white;
    font-size: 16px;
    cursor: pointer;
}

button:hover {
    background-color: #e60000;
}

.register-btn {
    background-color: #007bff;
}

.register-btn:hover {
    background-color: #0056b3;
}

.register-popup {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
}

.popup-content {
    background-color: #ffffff;
    padding: 20px;
    border-radius: 10px;
    position: relative;
}

.close {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 24px;
    cursor: pointer;
}

.error-popup {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
}

.popup-content {
    background-color: #ffffff;
    padding: 20px;
    border-radius: 10px;
    position: relative;
    text-align: center;
}

.close {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 24px;
    cursor: pointer;
}