body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #66bb6a, #388e3c); /* Green gradient */
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.login-container,
.rewards-container,
.apply-rewards-container,
.rewards-above-container,
.rewards-below-container {
    background-color: #ffffff;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
    text-align: center;
    background-color: rgba(255, 255, 255, 0.9);
}

h1 {
    font-size: 30px;
    color: #388e3c; /* Dark green */
    margin-bottom: 20px;
}

.input-group {
    margin: 15px 0;
    width: 100%;
}

.input-group input {
    width: 100%;
    padding: 12px;
    font-size: 16px;
    border-radius: 25px;
    border: 1px solid #ccc;
    background-color: #f8e0c2;
    outline: none;
    text-align: center;
}

.input-group input:focus {
    border-color: #388e3c; /* Dark green on focus */
}

button {
    width: 100%;
    padding: 14px;
    font-size: 16px;
    border-radius: 30px;
    background: linear-gradient(135deg, #66bb6a, #388e3c); /* Green gradient button */
    color: white;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background: linear-gradient(135deg, #388e3c, #66bb6a); /* Darker green on hover */
}

.forgot-link {
    font-size: 12px;
    color: #388e3c;
    text-decoration: none;
    margin-top: 10px;
}

.forgot-link:hover {
    text-decoration: underline;
}

.register-link {
    margin-top: 15px;
    font-size: 12px;
    color: #388e3c;
}

.register-link a {
    color: #388e3c;
    text-decoration: none;
}

.register-link a:hover {
    text-decoration: underline;
}

.error-message {
    color: red;
    font-size: 14px;
    margin-top: 10px;
    text-align: center;
}

.reward-details,
.apply-rewards-details {
    font-size: 16px;
    color: #388e3c;
    margin-bottom: 20px;
}

.reward-button,
.apply-rewards-button {
    width: 100%;
    padding: 14px;
    font-size: 16px;
    border-radius: 30px;
    background: linear-gradient(135deg, #66bb6a, #388e3c); /* Green gradient button */
    color: white;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.reward-button:hover,
.apply-rewards-button:hover {
    background: linear-gradient(135deg, #388e3c, #66bb6a); /* Darker green on hover */
}