body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto;
    background: linear-gradient(180deg, #fff9d6, #ffe680);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(15px);
    width: 100%;
    max-width: 420px;
    border-radius: 30px;
    padding: 24px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

h1 {
    text-align: center;
    margin-bottom: 20px;
    font-weight: 700;
}

/* LABEL iOS STYLE */
label {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    font-weight: 600;
    margin-top: 18px;
    color: #333;
}

/* SLIDER iOS STYLE */
input[type="range"] {
    width: 100%;
    -webkit-appearance: none;
    height: 34px;
    background: transparent;
}

/* TRACK */
input[type="range"]::-webkit-slider-runnable-track {
    height: 6px;
    background: linear-gradient(90deg, #ffd84d, #ffb300);
    border-radius: 50px;
}

/* THUMB (iPhone stijl) */
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 22px;
    width: 22px;
    border-radius: 50%;
    background: white;
    border: 2px solid #ffb300;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    margin-top: -8px;
    transition: transform 0.15s ease;
}

input[type="range"]:active::-webkit-slider-thumb {
    transform: scale(1.2);
}

/* RESULT CARD */
.result {
    margin-top: 20px;
    background: #f5f7fa;
    padding: 16px;
    border-radius: 20px;
    transition: all 0.3s ease;
}

.big {
    font-size: 26px;
    font-weight: 700;
    text-align: center;
}

.small {
    text-align: center;
    font-size: 13px;
    color: #666;
}