:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-strong: #eef3f6;
  --ink: #151923;
  --muted: #5f6b78;
  --line: #d8e1ea;
  --accent: #007f73;
  --accent-soft: #dff4ef;
  --coral: #d86f45;
  --blue: #3d73c5;
  --gold: #b98517;
  --violet: #6f61c7;
  --shadow: 0 18px 50px rgba(17, 24, 39, 0.1);
  --radius: 8px;
  --max-width: 1280px;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #111419;
  --surface: #1a1f27;
  --surface-strong: #232a35;
  --ink: #f5f7fb;
  --muted: #b5bfcb;
  --line: #323b48;
  --accent: #45c7b5;
  --accent-soft: #143a36;
  --coral: #ff9b70;
  --blue: #9dbbff;
  --gold: #ffd27c;
  --violet: #b8adff;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

button {
  font: inherit;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(90deg, rgba(0, 127, 115, 0.08), transparent 30%),
    linear-gradient(180deg, rgba(216, 111, 69, 0.08), transparent 38%),
    var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

a {
  color: inherit;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem max(1rem, calc((100vw - var(--max-width)) / 2));
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface), transparent 8%);
  backdrop-filter: blur(16px);
}

.brand,
.app-header nav {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.brand,
.app-header a {
  text-decoration: none;
}

.brand span {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: var(--radius);
  background: var(--ink);
  color: var(--surface);
  font-weight: 900;
}

.app-header nav a,
.theme-toggle,
.segmented-control button,
.action-button {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  font-weight: 850;
  min-height: 38px;
  padding: 0.55rem 0.75rem;
  text-decoration: none;
}

.segmented-control button.is-active,
.action-button {
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
}

.app-shell {
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
  padding: 4rem 0 5rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 1rem;
  align-items: end;
  margin-bottom: 1rem;
}

.hero > div:first-child {
  max-width: 850px;
}

.eyebrow {
  margin: 0 0 0.7rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 950;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 1rem;
  font-size: clamp(2.25rem, 5vw, 4.35rem);
  line-height: 0.98;
}

h2 {
  margin-bottom: 0.45rem;
  font-size: 1.35rem;
}

.hero p,
.market-note span,
.panel-copy,
.segment-card small,
.driver-card p,
.source-card p,
.pulse-row small,
td {
  color: var(--muted);
}

.market-note,
.panel,
.kpi-grid article,
.control-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface), transparent 2%);
  box-shadow: var(--shadow);
}

.market-note {
  display: grid;
  gap: 0.5rem;
  padding: 1rem;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

.kpi-grid article {
  padding: 1rem;
}

.kpi-grid span {
  display: block;
  color: var(--coral);
  font-size: 2rem;
  font-weight: 950;
  line-height: 1;
}

.kpi-grid p {
  margin: 0.45rem 0 0;
}

.control-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  padding: 1rem;
}

.segmented-control {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  justify-content: flex-end;
}

.control-stack {
  display: grid;
  gap: 0.55rem;
}

.dashboard-grid,
.pulse-grid {
  display: grid;
  gap: 1rem;
  margin-bottom: 1rem;
}

.dashboard-grid {
  grid-template-columns: minmax(0, 1fr) 360px;
}

.pulse-grid {
  grid-template-columns: minmax(0, 1fr) 430px;
}

.panel {
  padding: 1rem;
}

.panel-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.9rem;
}

.panel-heading span,
.pulse-status {
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 850;
}

.mix-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 1rem;
  align-items: center;
}

.donut {
  width: 100%;
  max-width: 280px;
  aspect-ratio: 1;
}

.donut .ring-bg {
  fill: none;
  stroke: var(--surface-strong);
  stroke-width: 28;
}

.donut path {
  fill: none;
  stroke-width: 28;
  stroke-linecap: butt;
  cursor: pointer;
  transition: opacity 160ms ease, stroke-width 160ms ease;
}

.donut path.is-dimmed {
  opacity: 0.28;
}

.donut path.is-selected {
  stroke-width: 34;
}

.donut text {
  fill: var(--ink);
  font-weight: 950;
  text-anchor: middle;
}

.segment-list,
.pulse-list,
.driver-list,
.source-grid {
  display: grid;
  gap: 0.75rem;
}

.family-note {
  display: grid;
  gap: 0.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-strong);
  padding: 0.75rem;
}

.family-note strong {
  color: var(--ink);
}

.family-note span {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 650;
}

.segment-card,
.pulse-row,
.driver-card,
.source-card,
.ms-type-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.segment-card {
  display: grid;
  gap: 0.55rem;
  padding: 0.75rem;
  cursor: pointer;
  transition: border-color 160ms ease, transform 160ms ease, background-color 160ms ease;
}

.segment-card:hover,
.segment-card.is-selected {
  border-color: var(--segment-color, var(--accent));
  background: color-mix(in srgb, var(--segment-color, var(--accent)), var(--surface) 92%);
  transform: translateY(-2px);
}

.segment-topline,
.pulse-topline {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.segment-topline strong,
.pulse-topline strong {
  font-size: 0.98rem;
}

.segment-topline em,
.pulse-topline em {
  color: var(--segment-color, var(--accent));
  font-style: normal;
  font-weight: 950;
}

.bar-track {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--surface-strong);
}

.bar-fill {
  display: block;
  height: 100%;
  width: var(--bar-width, 0%);
  border-radius: inherit;
  background: var(--segment-color, var(--accent));
}

.detail-panel dl {
  display: grid;
  gap: 0.65rem;
  margin: 1rem 0;
}

.detail-panel dl div {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-strong);
  padding: 0.75rem;
}

dt,
dd {
  margin: 0;
}

dt {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 950;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

dd {
  margin-top: 0.22rem;
  font-weight: 900;
}

.source-link {
  display: inline-flex;
  border-radius: var(--radius);
  background: var(--accent);
  color: #ffffff;
  font-weight: 950;
  padding: 0.6rem 0.8rem;
  text-decoration: none;
}

.bubble-chart {
  position: relative;
  min-height: 390px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--line), transparent 80%) 1px, transparent 1px),
    linear-gradient(180deg, color-mix(in srgb, var(--line), transparent 80%) 1px, transparent 1px),
    var(--surface-strong);
  background-size: 80px 80px;
}

.bubble-axis {
  position: absolute;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.bubble-axis--x {
  right: 1rem;
  bottom: 0.7rem;
}

.bubble-axis--y {
  left: 0.8rem;
  top: 0.8rem;
}

.bubble {
  position: absolute;
  display: grid;
  place-items: center;
  width: var(--bubble-size);
  height: var(--bubble-size);
  min-width: 72px;
  min-height: 72px;
  border: 2px solid color-mix(in srgb, var(--segment-color), var(--ink) 16%);
  border-radius: 50%;
  background: color-mix(in srgb, var(--segment-color), transparent 68%);
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 950;
  text-align: center;
  transform: translate(-50%, 50%);
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.bubble:hover {
  box-shadow: 0 14px 34px color-mix(in srgb, var(--segment-color), transparent 70%);
  transform: translate(-50%, 50%) scale(1.05);
}

.ms-breakdown {
  margin: 1rem 0;
}

.ms-breakdown.is-hidden {
  display: none;
}

.ms-category-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 1rem 0;
}

.ms-category-tabs button {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  font-weight: 850;
  padding: 0.5rem 0.7rem;
}

.ms-category-tabs button.is-active {
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
}

.ms-type-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 0.75rem;
}

.ms-type-card {
  display: grid;
  gap: 0.55rem;
  padding: 0.85rem;
}

.ms-type-card strong {
  display: block;
}

.ms-type-card small {
  width: fit-content;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-strong);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 950;
  letter-spacing: 0.06em;
  padding: 0.28rem 0.42rem;
  text-transform: uppercase;
}

.ms-type-card p {
  margin: 0;
  color: var(--muted);
}

.ms-type-card span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 750;
}

.pulse-status {
  margin-bottom: 0.75rem;
}

.pulse-row {
  display: grid;
  gap: 0.55rem;
  padding: 0.75rem;
}

.driver-card,
.source-card {
  padding: 0.85rem;
}

.driver-card strong,
.source-card strong {
  display: block;
  margin-bottom: 0.35rem;
}

.source-grid {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.source-card {
  text-decoration: none;
  transition: border-color 160ms ease, transform 160ms ease;
}

.source-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.source-card em {
  color: var(--accent);
  font-style: normal;
  font-weight: 950;
}

@media (max-width: 1080px) {
  .hero,
  .dashboard-grid,
  .pulse-grid,
  .mix-layout {
    grid-template-columns: 1fr;
  }

  .donut {
    justify-self: center;
  }
}

@media (max-width: 760px) {
  .app-header,
  .app-header nav,
  .control-panel,
  .panel-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .app-shell {
    padding-top: 2.5rem;
  }

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

  .segmented-control button {
    flex: 1 1 auto;
  }

  .bubble-chart {
    min-height: 340px;
  }
}

@media (max-width: 520px) {
  .kpi-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 2.3rem;
  }
}