* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: #f5f6f8;
  font-family: Arial, Helvetica, sans-serif;
  color: #171717;
}

.card {
  width: 100%;
  max-width: 390px;
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  padding: 30px 24px 26px;
  text-align: center;
  box-shadow: 0 8px 30px rgba(0,0,0,.07);
}

.icon {
  width: 46px;
  height: 46px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #111827;
  color: white;
  font-size: 24px;
}

h1 {
  margin: 0 0 9px;
  font-size: 21px;
}

p {
  margin: 0 0 24px;
  color: #6b7280;
  font-size: 14px;
}

.slider {
  position: relative;
  height: 58px;
  border-radius: 12px;
  background: #eef0f3;
  overflow: hidden;
  user-select: none;
  touch-action: none;
}

.track-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  background: #e5e7eb;
}

.slider-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #777;
  font-size: 14px;
  pointer-events: none;
}

.handle {
  position: absolute;
  left: 4px;
  top: 4px;
  width: 50px;
  height: 50px;
  border: 0;
  border-radius: 10px;
  background: #111827;
  color: white;
  font-size: 23px;
  cursor: grab;
  z-index: 2;
  touch-action: none;
}

.handle:active {
  cursor: grabbing;
}

.success {
  display: none;
  margin-top: 16px;
  color: #15803d;
  font-size: 14px;
  font-weight: 600;
}

.success span {
  margin-right: 5px;
}