.booster-bar {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: #f44336;
    color: #fff;
    font-family: Arial, sans-serif;
    padding: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    z-index: 9999;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}

.booster-text {
    flex: 1;
    font-size: 14px;
    margin-right: 10px;
}

#countdown-timer {
    font-weight: bold;
    margin-left: 10px;
}

.booster-form {
    display: flex;
}

.booster-form input {
    padding: 6px;
    border: none;
    border-radius: 3px 0 0 3px;
    outline: none;
}

.booster-form button {
    padding: 6px 12px;
    border: none;
    background: #333;
    color: #fff;
    border-radius: 0 3px 3px 0;
    cursor: pointer;
}

#booster-close {
    background: none;
    border: none;
    color: #fff;
    font-size: 20px;
    margin-left: 10px;
    cursor: pointer;
}

/* Mobile adjustments */
@media(max-width:600px){
    .booster-bar { 
        flex-direction: column; 
        align-items: stretch;
        text-align: center;
    }
    .booster-text { margin-bottom: 10px; }
    .booster-form { justify-content: center; flex-wrap: wrap; }
    .booster-form input, .booster-form button { width: 100%; margin-bottom: 5px; border-radius: 3px; }
    #booster-close { align-self: flex-end; margin: 0 10px; }
}