:root {
    --bg-gradient: linear-gradient(45deg, #0f0c29, #302b63, #24243e);
    --glass-bg: rgba(255, 255, 255, 0.1);
}

body {
    margin: 0;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--bg-gradient);
    font-family: 'Poppins', sans-serif;
    overflow: hidden;
}

.background-blobs {
    position: absolute;
    width: 300px;
    height: 300px;
    background: linear-gradient(#ff00cc, #3333ff);
    border-radius: 50%;
    filter: blur(80px);
    z-index: -1;
    animation: move 10s infinite alternate;
}

@keyframes move {
    from { transform: translate(-100px, -100px); }
    to { transform: translate(100px, 100px); }
}

.counter-box {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 40px;
    border-radius: 30px;
    text-align: center;
    box-shadow: 0 25px 45px rgba(0,0,0,0.2);
    width: 90%;
    max-width: 380px;
    transition: 0.3s;
}

#count {
    font-size: clamp(60px, 15vw, 100px); /* Responsive Font */
    margin: 10px 0;
    transition: 0.1s;
}

.control-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    padding: 15px 20px;
    font-size: 18px;
    border-radius: 12px;
    cursor: pointer;
    margin: 5px;
}

.settings-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
}

#goal-input {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 8px;
    border-radius: 5px;
    width: 80px;
}

.hint {
    font-size: 12px;
    color: rgba(255,255,255,0.4);
    margin-top: 20px;
}

/* 4. RESPONSIVE DESIGN: For Mobile Phones */
@media (max-width: 400px) {
    .counter-box {
        padding: 20px;
    }
    .control-btn {
        padding: 10px 15px;
        font-size: 16px;
    }
}