:root {
  --bg: #141414;
  --panel: #242424;
  --panel-2: #2d2d2d;
  --panel-3: #1f1f1f;
  --ink: #ffffff;
  --muted: #9a9a9a;
  --line: rgba(255, 255, 255, 0.12);
  --blue: #0c8bdb;
  --blue-2: #18d8f3;
  --blue-soft: rgba(24, 216, 243, 0.16);
  --orange: #f48c2e;
  --green: #8fcf15;
  --observed: #0e8b58;
  --inferred: #ffbb22;
  --raw: #6a67ff;
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.24);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Bahnschrift", "Aptos Narrow", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.04), transparent 20%),
    radial-gradient(circle at center, rgba(24, 216, 243, 0.04), transparent 30%),
    linear-gradient(180deg, #0f0f10 0%, #161616 100%);
}

.app-shell {
  display: grid;
  grid-template-columns: 290px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  padding: 10px;
  background: linear-gradient(180deg, #171717 0%, #111111 100%);
  border-right: 1px solid rgba(255, 255, 255, 0.06);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 10px;
}

.brand-mark {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  font-weight: 800;
  color: #141414;
  background: linear-gradient(135deg, #ff9d41, #ffd98a);
}

.brand h1,
.hero-screen h2,
.session-head h3 {
  margin: 0;
  font-family: "Eurostile", "Bahnschrift SemiBold", "Segoe UI", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.eyebrow,
.panel-label,
.section-title,
.screen-date,
.metric-caption {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.panel,
.screen-card,
.hero-screen {
  background:
    radial-gradient(circle at center top, rgba(255, 255, 255, 0.03), transparent 40%),
    linear-gradient(180deg, #2a2a2a 0%, #202020 100%);
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: var(--shadow);
  overflow: visible;
}

.panel {
  padding: 10px;
  margin-bottom: 8px;
  border-radius: 14px;
}

.action-button,
.file-input span,
.session-item,
.tab-button {
  font: inherit;
}

.action-button,
.file-input span {
  display: inline-flex;
  width: 100%;
  min-height: 46px;
  justify-content: center;
  align-items: center;
  border: 0;
  border-radius: 14px;
  font-weight: 700;
  color: #121212;
  background: linear-gradient(135deg, #ff9d41, #ffd88a);
  cursor: pointer;
}

.file-input {
  display: block;
  margin-top: 10px;
}

.file-input input {
  display: none;
}

.muted {
  color: var(--muted);
}

.legend {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

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

.session-list {
  display: grid;
  gap: 8px;
}

.session-item {
  width: 100%;
  text-align: left;
  padding: 9px 10px;
  border: 1px solid transparent;
  border-radius: 12px;
  background: linear-gradient(180deg, #303030 0%, #242424 100%);
  color: var(--ink);
  cursor: pointer;
}

.session-item.active {
  border-color: rgba(24, 216, 243, 0.42);
  box-shadow: inset 0 0 0 1px rgba(24, 216, 243, 0.16);
}

.session-item strong,
.session-item span {
  display: block;
}

.session-item strong {
  margin-bottom: 6px;
}

.main-content {
  padding: 10px;
}

.hero-screen {
  padding: 12px 14px;
  border-radius: 16px;
}

.top-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.88fr) minmax(520px, 1.16fr) 138px;
  gap: 8px;
  align-items: stretch;
}

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

.hero-meta {
  text-align: right;
}

.pulse-layout {
  display: grid;
  grid-template-columns: 1fr;
  align-items: start;
  gap: 4px;
  margin-top: 6px;
}

.pulse-score,
.pulse-side,
.pulse-metrics {
  display: grid;
  gap: 8px;
}

.pulse-metrics {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: start;
}

.pulse-score strong,
.pulse-side strong,
.pulse-metrics strong {
  display: block;
  color: var(--blue);
  font-size: clamp(1.35rem, 1.7vw, 2.1rem);
  font-weight: 500;
  line-height: 0.9;
}

.pulse-metrics div:last-child strong {
  color: var(--blue-2);
}

.pulse-chart {
  width: 100%;
  max-width: 100%;
  justify-self: center;
  min-height: 252px;
}

.session-stack {
  padding: 10px;
  border-radius: 16px;
  background:
    radial-gradient(circle at center top, rgba(255, 255, 255, 0.03), transparent 40%),
    linear-gradient(180deg, #2a2a2a 0%, #202020 100%);
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: var(--shadow);
}

.session-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 5px;
  flex: 1;
}

.session-strip.vertical {
  grid-template-columns: 1fr;
}

.strip-tile {
  padding: 9px 10px;
  border-radius: 12px;
  background: linear-gradient(180deg, #2a2a2a 0%, #222222 100%);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.strip-tile strong {
  color: var(--blue);
  font-size: 1.05rem;
  font-weight: 500;
  line-height: 1;
}

.screen-card {
  padding: 10px;
  border-radius: 14px;
}

.overview-card,
.charts-card {
  margin-top: 8px;
}

.overview-side {
  margin-top: 0;
}

.impact-card-top {
  min-height: 100%;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 2px;
}

.title-with-help {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.section-title-text {
  color: var(--muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.title-help {
  position: relative;
  width: 20px;
  height: 20px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  padding: 0;
  color: var(--blue-2);
  background: rgba(24, 216, 243, 0.08);
  cursor: help;
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1;
}

.title-help-popup {
  position: absolute;
  left: 50%;
  top: calc(100% + 10px);
  transform: translateX(-50%);
  width: min(280px, 58vw);
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  color: #d7d7d7;
  background: rgba(16, 18, 19, 0.96);
  box-shadow: 0 18px 30px rgba(0, 0, 0, 0.28);
  font-family: "Bahnschrift", "Aptos Narrow", "Segoe UI", sans-serif;
  font-size: 0.78rem;
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
  line-height: 1.4;
  opacity: 0;
  pointer-events: none;
  transition: opacity 120ms ease;
  z-index: 2000;
}

.title-help:hover .title-help-popup,
.title-help:focus-visible .title-help-popup {
  opacity: 1;
}

.metric-with-help {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.metric-help {
  position: relative;
  width: 16px;
  height: 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  padding: 0;
  color: var(--blue-2);
  background: rgba(255, 255, 255, 0.04);
  cursor: help;
  font-size: 0.62rem;
  font-weight: 700;
  line-height: 1;
}

.metric-help-popup {
  width: min(280px, 60vw);
}

.metric-help:hover .metric-help-popup,
.metric-help:focus-visible .metric-help-popup {
  opacity: 1;
}

.tag,
.tag-row span,
.tab-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 24px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.observed {
  color: white;
  background: var(--observed);
}

.inferred {
  color: #111;
  background: rgba(255, 187, 34, 0.85);
}

.raw {
  color: white;
  background: var(--raw);
}

.tag-row,
.tab-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tab-button {
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
}

.tab-button.active {
  color: var(--blue-2);
  border-color: rgba(24, 216, 243, 0.24);
  background: rgba(24, 216, 243, 0.08);
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 6px;
}

.overview-grid-vertical {
  grid-template-columns: 1fr;
}

.overview-stat {
  padding: 9px 10px;
  border-radius: 12px;
  background: linear-gradient(180deg, #2c2c2c 0%, #232323 100%);
}

.overview-stat strong {
  display: block;
  color: var(--blue);
  font-size: 1.4rem;
  font-weight: 500;
  line-height: 0.95;
}

.unit-line {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
}

.unit-line small {
  color: var(--muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.compact-grid {
  display: grid;
  gap: 8px;
}

.compact-grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.compact-grid-3 {
  grid-template-columns: 1fr 1fr 1fr;
}

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

.repartition-columns {
  display: block;
}

.repartition-list,
.signature-table,
.truth-matrix,
.impact-stats {
  display: grid;
  gap: 8px;
}

.repartition-chart {
  max-width: 170px;
  margin: 8px auto 0;
}

.stacked-diagonal {
  display: grid;
  gap: 6px;
}

.impact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.42fr) 215px;
  gap: 8px;
  align-items: center;
}

.impact-layout-top {
  grid-template-columns: minmax(0, 1fr) 210px;
  min-height: 100%;
  margin-top: -34px;
}

.repartition-row,
.signature-row,
.truth-row,
.impact-stat,
.diagonal-block {
  padding: 9px 10px;
  border-radius: 12px;
  background: linear-gradient(180deg, #2f2f2f 0%, #242424 100%);
}

.repartition-row,
.signature-row,
.truth-row {
  display: grid;
  gap: 10px;
  align-items: center;
}

.repartition-row,
.truth-row {
  grid-template-columns: minmax(0, 1fr) auto;
}

.signature-row {
  grid-template-columns: minmax(0, 1fr) auto auto;
}

.repartition-meter {
  height: 10px;
  margin-top: 8px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.06);
}

.repartition-fill {
  height: 100%;
  border-radius: inherit;
}

.fill-left {
  background: linear-gradient(90deg, #0a6abf, #10b9e8);
}

.fill-right {
  background: linear-gradient(90deg, #0aa7ce, #18d8f3);
}

.fill-serve {
  background: linear-gradient(90deg, #ef7f2f, #ffb25e);
}

.fill-variation {
  background: linear-gradient(90deg, #4e5fff, #8f96ff);
}

.repartition-chart,
.heatmap-chart,
.bar-chart {
  width: 100%;
  height: auto;
  display: block;
}

.diagonal-card {
  position: relative;
  overflow: visible;
}

.diagonal-card::before {
  content: "";
  position: absolute;
  inset: -10% 45% -10% 45%;
  transform: rotate(28deg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.01));
  pointer-events: none;
  z-index: 0;
}

.diagonal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  position: relative;
  z-index: 1;
}

.diagonal-grid-compact .diagonal-block strong {
  font-size: 1.6rem;
}

.diagonal-block strong {
  display: block;
  color: var(--blue);
  font-size: 2.25rem;
  font-weight: 500;
  line-height: 0.92;
}

.diagonal-block small {
  color: var(--muted);
}

.impact-stat strong {
  display: block;
  color: var(--blue);
  font-size: 1.1rem;
  font-weight: 500;
}

.impact-note strong {
  color: #d9e1e6;
}

.heatmap-chart {
  max-width: 180px;
  margin: 0 auto 8px;
}

.heatmap-chart.large-racket {
  max-width: 760px;
  margin: 0 auto;
}

.impact-stats {
  grid-template-columns: 1fr;
  gap: 8px;
}

.impact-stat strong .muted,
.strip-tile strong .unit-line,
.strip-tile strong small,
.overview-stat .muted,
.diagonal-block small {
  font-size: 0.68rem;
}

.bar-chart {
  max-height: 230px;
}

.signature-row code {
  font-size: 0.92rem;
}

@media (max-width: 1300px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .pulse-layout,
  .top-grid,
  .overview-grid {
    grid-template-columns: 1fr;
  }

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

  .compact-grid-4,
  .compact-grid-3,
  .compact-grid-2 {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 720px) {
  .main-content,
  .sidebar {
    padding: 18px;
  }

  .hero-topline {
    flex-direction: column;
    align-items: flex-start;
  }

  .diagonal-grid,
  .session-strip,
  .signature-row,
  .truth-row,
  .repartition-row,
  .pulse-metrics,
  .compact-grid-4,
  .compact-grid-3,
  .compact-grid-2,
  .impact-stats,
  .impact-layout,
  .top-grid {
    grid-template-columns: 1fr;
  }

  .diagonal-block strong {
    font-size: 3.6rem;
  }
}