.download-btn {
    display: inline-block;
    margin-top: 15px;
    padding: 10px 20px;
    background-color: #1b5e20;
    color: white;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    transition: background 0.3s;
}

.download-btn:hover {
    background-color: #388e3c;
}

body {
    background: linear-gradient(to right, #e8f5e9, #c8e6c9);
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    padding: 0;
}

.verify-container {
    max-width: 500px;
    margin: 100px auto;
    background-color: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 12px 25px rgba(0, 128, 0, 0.2);
    text-align: center;
}

.verify-container h1 {
    color: #1b5e20;
    font-size: 2.2rem;
    margin-bottom: 10px;
}

.verify-container p {
    color: #4caf50;
    font-size: 1rem;
    margin-bottom: 30px;
}

#code-input {
    width: 100%;
    padding: 15px;
    font-size: 1rem;
    border: 2px solid #81c784;
    border-radius: 10px;
    margin-bottom: 20px;
    outline: none;
}

button {
    background-color: #2e7d32;
    color: white;
    padding: 12px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    cursor: pointer;
    transition: 0.3s ease-in-out;
}

button:hover {
    background-color: #43a047;
}

.result {
    margin-top: 25px;
    font-size: 1.1rem;
    padding: 15px;
    border-radius: 10px;
}

.success {
    background-color: #e8f5e9;
    color: #1b5e20;
    border: 2px solid #66bb6a;
}

.error {
    background-color: #ffebee;
    color: #c62828;
    border: 2px solid #ef5350;
}

.hidden {
    display: none;
}

.back-btn {
    display: inline-block;
    margin: 30px auto 0;
    padding: 10px 20px;
    background-color: #388e3c;
    color: white;
    text-decoration: none;
    font-size: 16px;
    font-weight: bold;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: background-color 0.3s, transform 0.2s;
    text-align: center;
}

.back-btn:hover {
    background-color: #2e7d32;
    transform: scale(1.05);
}

.back-btn {
    display: block;
    width: fit-content;
    margin: 30px auto;
}