:root {
  color-scheme: light;
  --bg: #f7f8fa;
  --surface: #ffffff;
  --surface-soft: #f1f4f8;
  --text: #111827;
  --muted: #5d6675;
  --line: #dfe4eb;
  --low: #20875a;
  --moderate: #d69a00;
  --elevated: #d93636;
  --high: #e65f00;
  --accent: #234f89;
  --shadow: 0 14px 34px rgba(17, 24, 39, 0.07);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, Arial, sans-serif;
  line-height: 1.5;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
  padding: 24px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: blur(10px);
}

h1, h2, p {
  margin: 0;
}

h1 {
  font-size: clamp(26px, 3vw, 36px);
  letter-spacing: 0;
}

h2 {
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.2;
}

.topbar p,
.intro p,
.section-title p,
.panel p,
footer {
  color: var(--muted);
}

.meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
  color: var(--muted);
  font-size: 14px;
}

a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 650;
}

main {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
  padding: 30px 0 42px;
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
  gap: 22px;
  align-items: stretch;
  margin-bottom: 24px;
}

.intro > div,
.panel,
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.intro > div {
  padding: 24px;
}

.intro p {
  margin-top: 10px;
  max-width: 780px;
}

.formula {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
}

.formula span,
.card-label,
.small-label {
  color: var(--muted);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.formula strong {
  font-size: 18px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 22px;
}

.card {
  padding: 20px;
  min-height: 192px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
}

.ticker {
  font-size: 30px;
  line-height: 1;
  font-weight: 800;
}

.card-name {
  color: var(--muted);
  font-size: 14px;
  margin-top: 6px;
}

.reading {
  font-size: clamp(34px, 5vw, 48px);
  line-height: 1;
  font-weight: 750;
  margin-top: 16px;
}

.badge {
  border-radius: 999px;
  padding: 5px 10px;
  font-weight: 700;
  font-size: 12px;
  background: var(--surface-soft);
}

.card-foot {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 14px;
}

.mini-track {
  height: 8px;
  border-radius: 999px;
  overflow: hidden;
  background: #e8ebef;
  margin-top: 14px;
}

.mini-fill {
  height: 100%;
  border-radius: 999px;
}

.panel {
  padding: 22px;
}

.section-title {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: start;
  margin-bottom: 22px;
}

.legend {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
  font-size: 13px;
  color: var(--muted);
}

.dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 6px;
}

.bars {
  display: grid;
  gap: 16px;
}

.bar-row {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) 74px;
  gap: 14px;
  align-items: center;
}

.bar-label {
  font-weight: 800;
}

.bar-track {
  height: 18px;
  border-radius: 999px;
  background: #eceff3;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 999px;
}

.bar-value {
  font-variant-numeric: tabular-nums;
  font-weight: 750;
  text-align: right;
}

.education {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 22px;
}

.education .panel:last-child {
  grid-column: 1 / -1;
}

.panel ul {
  margin: 14px 0 0;
  padding-left: 20px;
  color: var(--muted);
}

.panel li + li {
  margin-top: 8px;
}

.guide-row {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.guide-row:last-child {
  border-bottom: 0;
}

.guide-row span {
  color: var(--muted);
}

footer {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
  padding: 0 0 32px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 13px;
}

.low { color: var(--low); }
.moderate { color: var(--moderate); }
.elevated { color: var(--elevated); }
.high { color: var(--high); }
.fill-low { background: var(--low); }
.fill-moderate { background: var(--moderate); }
.fill-elevated { background: var(--elevated); }
.fill-high { background: var(--high); }

@media (max-width: 940px) {
  .topbar,
  .section-title {
    align-items: flex-start;
    flex-direction: column;
  }

  .meta,
  .legend {
    justify-content: flex-start;
  }

  .intro,
  .education {
    grid-template-columns: 1fr;
  }

  .cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  main {
    width: min(100% - 24px, 1240px);
    padding-top: 18px;
  }

  .topbar {
    padding: 18px 14px;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .bar-row {
    grid-template-columns: 54px minmax(0, 1fr) 58px;
    gap: 9px;
  }

  .guide-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .panel,
  .intro > div,
  .card {
    padding: 18px;
  }
}