:root{
    /*Light color scheme*/
    --bg-clr-light: #f0f0f0;
    --container-clr-light:#fff;
    --text-clr-light: #333;

    /*Dark color scheme*/
    --bg-clr-dark: #101010;
    --container-clr-dark:#1f1f1f;
    --text-clr-dark: #bdc1c6;
}


body {
    font-family: Arial, sans-serif;
    background-color: var(--bg-clr-light);
    color: var(--text-clr-light);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    color-scheme: light dark;
}

.container {
    background: var(--container-clr-light);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 20px;
    max-width: 500px;
    width: 100%;
    text-align: center;
    
    height: 100vh;
    overflow: auto; /* Ensure scroll works */
    padding: 20px;

}

h1 {
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

select {
    width: 100%;
    padding: 10px;
    font-size: 14px;
    margin-bottom: 15px;
}

button {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 10px 20px;
    font-size: 14px;
    border-radius: 5px;
    cursor: pointer;
    transition: background 150ms;
}



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

.hidden {
    display: none;
}

.progress-bar {
    background-color: #f0f0f0;
    border-radius: 5px;
    overflow: hidden;
    margin-top: 20px;
    height: 30px;
    position: relative;
}

.progress-bar div {
    height: 100%;
    background-color: #007bff;
    width: 0;
    transition: width 0.5s;
}

#progressText {
    margin-top: 10px;
    font-weight: bold;
}

.key-item {
    display: flex;
    align-items: center;
    margin-top: 10px;
}

.key-item input {
    flex: 1;
    padding: 10px;
    font-size: 14px;
    border: 1px solid #ccc;
    border-radius: 5px;
    margin-right: 10px;
}

.copyKeyBtn {
    background-color: #28a745;
    border: none;
    padding: 10px 20px;
    color: white;
    font-size: 14px;
    border-radius: 5px;
    cursor: pointer;
}

.copyKeyBtn:hover {
    background-color: #218838;
}

.footer {
    margin-top: 20px;
    font-size: 14px;
}

#copyStatus {
    margin-top: 10px;
    color: green;
}

#telegramChannelBtn{
    background-color: green;
}

#countdownContainer {
    display: none;
    font-size: 1.05em;
    color: #ff0000;
    margin: 10px 0;
}

.scrollToTopBtn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: none;
    background-color: #333;
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 1000;
    font-size: 18px;
}

.scrollToTopBtn:hover {
    background-color: #555;
}

@media (prefers-color-scheme:dark) {
    body{
        background-color: var(--bg-clr-dark);
        color: var(--text-clr-dark);
    }
    .container{
        background-color: var(--container-clr-dark);
    }
    button{
        filter:brightness(0.94);
    }
    .progress-bar{
        background-color: #484848;
    }
}