html, body {
  margin: 0;
  overflow: hidden;
}

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ffffff;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.sp {
  display: flex;
  justify-content: center;
  width: 100%;
}

.sp__board {
  width: min(340px, 84vw);
  background: #231f28;
  border-radius: 16px;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
  padding: 12px 12px 8px;
}

.sp__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 0 0 8px;
}

.sp__title {
  margin: 0;
  font-weight: 800;
  font-size: clamp(11px, 3vw, 13px);
  color: #fff7e6;
}

.sp__unit {
  font-weight: 700;
  font-size: clamp(9px, 2.4vw, 10px);
  color: #9a93a6;
}

.sp__rows {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sp__row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
}

.sp__sym {
  font-weight: 700;
  font-size: clamp(9px, 2.6vw, 11px);
  color: #9a93a6;
  letter-spacing: 0.04em;
}

.sp__chart {
  display: block;
  min-width: 0;
}

.sp__svg {
  display: block;
  width: 100%;
  height: clamp(20px, 7vw, 26px);
  overflow: hidden;
}

.sp__line {
  fill: none;
  stroke-width: 1.5px;
  stroke-linejoin: round;
  stroke-linecap: round;
  vector-effect: non-scaling-stroke;
}

.sp__line.is-up {
  stroke: #3ddc97;
}

.sp__line.is-down {
  stroke: #ff7a5e;
}

.sp__track {
  transition: transform 300ms ease-out;
}

.sp__vals {
  display: grid;
  justify-items: end;
}

.sp__val {
  grid-area: 1/1;
  display: grid;
  justify-items: end;
}

.sp__num {
  font-weight: 800;
  font-size: clamp(11px, 3vw, 13px);
  line-height: 1.3;
  color: #fff7e6;
  font-variant-numeric: tabular-nums;
}

.sp__chg {
  font-weight: 700;
  font-size: clamp(9px, 2.4vw, 10px);
  line-height: 1.3;
  font-variant-numeric: tabular-nums;
}

.sp__chg.is-up {
  color: #3ddc97;
}

.sp__chg.is-down {
  color: #ff7a5e;
}

.sp:not(.is-demo) .sp__val {
  opacity: 0;
}

.sp:not(.is-demo) .sp__val[data-v="0"] {
  opacity: 1;
}

.sp.is-demo .sp__track {
  animation-name: spShift;
  animation-duration: 2s;
  animation-timing-function: ease-out;
  animation-iteration-count: infinite;
}

@keyframes spShift {
  0%, 8% {
    transform: translateX(0);
  }
  16%, 24% {
    transform: translateX(-10px);
  }
  32%, 40% {
    transform: translateX(-20px);
  }
  48%, 56% {
    transform: translateX(-30px);
  }
  64%, 72% {
    transform: translateX(-40px);
  }
  80%, 88% {
    transform: translateX(-50px);
  }
  96%, 100% {
    transform: translateX(-60px);
  }
}
.sp.is-demo .sp__val {
  animation-duration: 2s;
  animation-timing-function: steps(1, end);
  animation-iteration-count: infinite;
}

.sp.is-demo .sp__val[data-v="0"] {
  animation-name: spV0;
}

.sp.is-demo .sp__val[data-v="1"] {
  animation-name: spV1;
}

.sp.is-demo .sp__val[data-v="2"] {
  animation-name: spV2;
}

.sp.is-demo .sp__val[data-v="3"] {
  animation-name: spV3;
}

.sp.is-demo .sp__val[data-v="4"] {
  animation-name: spV4;
}

.sp.is-demo .sp__val[data-v="5"] {
  animation-name: spV5;
}

@keyframes spV0 {
  0% {
    opacity: 1;
  }
  16%, 100% {
    opacity: 0;
  }
}
@keyframes spV1 {
  0% {
    opacity: 0;
  }
  16% {
    opacity: 1;
  }
  32%, 100% {
    opacity: 0;
  }
}
@keyframes spV2 {
  0% {
    opacity: 0;
  }
  32% {
    opacity: 1;
  }
  48%, 100% {
    opacity: 0;
  }
}
@keyframes spV3 {
  0% {
    opacity: 0;
  }
  48% {
    opacity: 1;
  }
  64%, 100% {
    opacity: 0;
  }
}
@keyframes spV4 {
  0% {
    opacity: 0;
  }
  64% {
    opacity: 1;
  }
  80%, 100% {
    opacity: 0;
  }
}
@keyframes spV5 {
  0% {
    opacity: 0;
  }
  80% {
    opacity: 1;
  }
  100% {
    opacity: 1;
  }
}
@media (max-width: 340px) {
  .sp__board {
    padding: 8px;
  }
  .sp__head {
    padding: 0 0 4px;
  }
  .sp__row {
    gap: 4px;
    padding: 0;
  }
}
@media (prefers-reduced-motion: reduce) {
  .sp.is-demo .sp__track {
    animation: none !important;
    transform: translateX(0) !important;
  }
  .sp__track {
    transition: none !important;
  }
  .sp.is-demo .sp__val {
    animation: none !important;
    opacity: 0 !important;
  }
  .sp.is-demo .sp__val[data-v="0"] {
    opacity: 1 !important;
  }
}