:root {
  --ink: #202124;
  --muted: #5f6368;
  --line: #dadce0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #fff;
  color: var(--ink);
  font-family: "Noto Sans KR", "Apple SD Gothic Neo", Arial, sans-serif;
}

.survey-chart {
  width: min(820px, 100%);
  margin: 0 auto;
  padding: 24px 16px;
}

h1 {
  margin: 0 0 6px;
  font-size: 22px;
  line-height: 1.35;
  letter-spacing: 0;
}

.note {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.question-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 22px;
  border-bottom: 1px solid var(--line);
}

.question-tab {
  min-height: 40px;
  padding: 0 14px;
  border: 0;
  border-bottom: 3px solid transparent;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}

.question-tab:hover,
.question-tab:focus-visible {
  color: var(--ink);
  outline: none;
}

.question-tab.active {
  border-bottom-color: #3367d6;
  color: var(--ink);
}

.chart-list {
  display: grid;
}

.question-card {
  padding: 0 0 22px;
}

.question-card[hidden] {
  display: none;
}

.question-title {
  margin: 0 0 4px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
}

.question-meta {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 13px;
}

.chart-row {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 22px;
  align-items: center;
}

.donut-wrap {
  position: relative;
  width: 230px;
  height: 230px;
}

.donut {
  display: block;
  width: 100%;
  height: 100%;
}

.segment {
  cursor: pointer;
  transition: opacity 140ms ease;
}

.donut:hover .segment {
  opacity: 0.45;
}

.donut .segment:hover {
  opacity: 1;
}

.center-label {
  position: absolute;
  inset: 34%;
  display: grid;
  place-content: center;
  text-align: center;
  pointer-events: none;
}

.center-value {
  display: block;
  font-size: 24px;
  font-weight: 800;
  line-height: 1;
}

.center-text {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
}

.legend {
  display: grid;
  gap: 8px;
}

.legend-item {
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
  min-height: 28px;
  font-size: 14px;
}

.swatch {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.label {
  min-width: 0;
}

.value {
  color: var(--muted);
  white-space: nowrap;
}

.tooltip {
  position: fixed;
  z-index: 10;
  max-width: 220px;
  padding: 8px 10px;
  border: 1px solid #c8ccd3;
  border-radius: 4px;
  background: #fff;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
  color: var(--ink);
  font-size: 13px;
  line-height: 1.45;
  pointer-events: none;
  opacity: 0;
}

.tooltip.visible {
  opacity: 1;
}

@media (max-width: 620px) {
  .question-tabs {
    gap: 4px;
  }

  .question-tab {
    flex: 1 1 auto;
    padding: 0 8px;
    font-size: 13px;
  }

  .chart-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .donut-wrap {
    width: 210px;
    height: 210px;
    justify-self: center;
  }
}