:root {
  color-scheme: light;
  --color-primary-50: #eef6ff;
  --color-primary-100: #d9ecff;
  --color-primary-200: #b6dafb;
  --color-primary-300: #8bc4f2;
  --color-primary-400: #55a6df;
  --color-primary-500: #0047a3;
  --color-primary-600: #003d8c;
  --color-primary-700: #173c72;
  --color-primary-800: #19345c;
  --color-primary-900: #182b48;
  --color-primary-950: #101d33;
  --color-secondary-500: #72b7cf;
  --color-tertiary-500: #ffdc00;
  --color-success-500: #00b400;
  --color-warning-500: #ff7a12;
  --color-error-500: #c80000;
  --color-surface-50: #ffffff;
  --color-surface-100: #f4f4f5;
  --color-surface-200: #e4e4e7;
  --color-surface-300: #d4d4d8;
  --color-surface-500: #71717a;
  --color-surface-700: #3f3f46;
  --color-surface-900: #18181b;
  --color-surface-950: #0f172a;
  --radius-base: 6px;
  --radius-container: 12px;
  --body-background-color: var(--color-surface-100);
  --base-font-color: var(--color-surface-950);
  --bg: var(--body-background-color);
  --surface: var(--color-surface-50);
  --surface-soft: #fafafa;
  --surface-tint: var(--color-primary-50);
  --line: var(--color-surface-200);
  --line-strong: var(--color-surface-300);
  --text: var(--base-font-color);
  --muted: #5f6572;
  --accent: var(--color-primary-500);
  --accent-strong: var(--color-primary-700);
  --accent-soft: var(--color-primary-100);
  --warning: var(--color-warning-500);
  --bad: var(--color-error-500);
  --good: #0f8f3f;
  --shadow: 0 16px 40px rgba(15, 23, 42, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Helvetica, Arial, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  font-size: 15px;
  letter-spacing: 0;
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-surface-100);
}

::-webkit-scrollbar-thumb {
  background: var(--color-surface-300);
  border-radius: var(--radius-base);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-surface-500);
}

button,
select,
a.button {
  font: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 18px 14px;
  background: rgba(255, 255, 255, 0.96);
  color: var(--text);
  border-right: 1px solid var(--line);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.brand,
.topbar,
.section-header,
.decision-controls,
.answer-card,
.vector,
.bar-row {
  display: flex;
}

.brand {
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: #ffffff;
  font-weight: 800;
  border-radius: var(--radius-base);
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

.brand h1 {
  margin-bottom: 2px;
  font-size: 20px;
}

.brand p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.35;
}

.nav-list {
  display: grid;
  gap: 6px;
}

.nav-list a {
  color: var(--text);
  text-decoration: none;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius-container);
  font-size: 14px;
  font-weight: 650;
}

.nav-list a:hover {
  background: var(--color-primary-50);
  border-color: var(--color-primary-100);
  color: var(--accent);
}

.notice {
  margin-top: auto;
  padding: 14px;
  background: var(--surface-soft);
  color: var(--muted);
  line-height: 1.45;
  border: 1px solid var(--line);
  border-radius: var(--radius-container);
}

main {
  min-width: 0;
  padding: 26px;
  overflow-x: hidden;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 18px;
  align-items: stretch;
  margin-bottom: 18px;
}

.hero-copy {
  min-height: 210px;
  padding: 28px;
  background: linear-gradient(135deg, var(--color-primary-950), var(--color-primary-700));
  color: #ffffff;
  border-radius: var(--radius-container);
  display: flex;
  flex-direction: column;
  justify-content: center;
  box-shadow: var(--shadow);
}

.hero-copy h2 {
  margin-bottom: 12px;
  max-width: 820px;
  font-size: clamp(30px, 3.4vw, 48px);
  line-height: 1.06;
}

.hero-copy p:not(.eyebrow) {
  max-width: 760px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.55;
  font-size: 17px;
}

.hero-panel {
  min-width: 0;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-container);
  box-shadow: var(--shadow);
  display: grid;
  align-content: space-between;
  gap: 20px;
}

.hero-panel span,
.confidence-label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.hero-panel strong {
  display: inline-block;
  width: fit-content;
  max-width: 100%;
  font-size: clamp(20px, 2.2vw, 25px);
  line-height: 1.15;
  white-space: nowrap;
}

.mini-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.mini-stats div {
  padding: 12px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-base);
}

.mini-stats b,
.mini-stats small {
  display: block;
}

.mini-stats b {
  font-size: 20px;
}

.mini-stats small {
  color: var(--muted);
  margin-top: 2px;
  font-size: 12px;
}

.eyebrow {
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: var(--color-primary-200);
}

.helper {
  max-width: 760px;
  margin: 7px 0 0;
  color: var(--muted);
  line-height: 1.45;
}

.section-band {
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-container);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 18px;
}

.section-header {
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 16px;
}

.section-header h3,
.decision-controls h3 {
  margin-bottom: 0;
  font-size: 22px;
}

.status {
  padding: 6px 12px;
  background: var(--color-success-500);
  color: #ffffff;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-base);
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.step-card {
  min-height: 158px;
  padding: 16px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-container);
  display: grid;
  align-content: start;
  gap: 10px;
}

.step-card.is-complete {
  border-color: #b8e6c4;
  background: #f3fbf5;
}

.step-card.is-active {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.step-number {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: #ffffff;
  font-weight: 850;
  border-radius: var(--radius-base);
}

.step-card h4 {
  margin-bottom: 0;
  font-size: 16px;
}

.step-card p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.42;
}

.decision-panel {
  display: grid;
  gap: 16px;
}

.decision-controls {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(220px, 320px) auto auto;
  gap: 14px;
  align-items: end;
}

.target-control {
  min-width: 0;
  display: grid;
  gap: 6px;
}

.target-control label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

select,
button,
a.button {
  max-width: 100%;
  min-height: 44px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--text);
  padding: 0 12px;
  border-radius: var(--radius-base);
}

button,
a.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
  cursor: pointer;
  text-decoration: none;
  font-weight: 800;
  white-space: nowrap;
}

button:hover,
a.button:hover {
  background: var(--accent-strong);
}

select:focus,
button:focus,
a.button:focus {
  outline: 2px solid var(--color-primary-200);
  outline-offset: 2px;
}

button:disabled {
  opacity: 0.65;
  cursor: progress;
}

.secondary {
  background: var(--surface);
  color: var(--accent);
}

.secondary:hover {
  background: var(--color-primary-50);
}

.answer-card {
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  padding: 20px;
  background: var(--color-primary-50);
  border: 1px solid var(--color-primary-100);
  border-radius: var(--radius-container);
}

.answer-card h3 {
  margin-bottom: 6px;
  font-size: 26px;
}

.answer-card p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.45;
}

.answer-card > div:last-child {
  min-width: 150px;
  text-align: right;
}

.answer-card strong {
  display: block;
  margin-top: 5px;
  color: var(--accent-strong);
  font-size: 28px;
  text-transform: capitalize;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.metric {
  min-height: 128px;
  padding: 16px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-container);
}

.metric span,
.summary-row span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.metric strong {
  display: block;
  margin-top: 8px;
  font-size: 28px;
}

.metric small {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.35;
}

.summary-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.summary-row > div {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-container);
}

.summary-row strong {
  display: block;
  margin-top: 6px;
  overflow-wrap: anywhere;
}

.method-score {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.method-score > div {
  padding: 16px;
  background: var(--surface-tint);
  border: 1px solid var(--line);
  border-radius: var(--radius-container);
}

.method-score span,
.method-step span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.method-score strong {
  display: block;
  margin-top: 7px;
  font-size: 26px;
}

.method-list {
  display: grid;
  gap: 10px;
}

.literature-visual-grid {
  margin-bottom: 14px;
}

.literature-visual-grid h4 {
  margin: 0 0 8px;
}

.literature-visual-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.literature-visual-grid > div {
  min-width: 0;
}

.chart-box {
  min-height: 260px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-container);
  background: var(--surface);
}

.lit-chart {
  width: 100%;
  height: auto;
  display: block;
}

.chart-axis,
.chart-reference {
  stroke: var(--line-strong);
  stroke-width: 1.4;
}

.chart-reference {
  stroke-dasharray: 5 5;
}

.chart-point,
.chart-point-best {
  fill: var(--accent);
}

.chart-point-best {
  fill: var(--color-warning-500);
  stroke: #ffffff;
  stroke-width: 2;
}

.chart-label,
.chart-note {
  fill: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.chart-label-y {
  transform-box: fill-box;
  transform: rotate(-90deg);
  transform-origin: center;
}

.method-step {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 16px;
  padding: 14px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-container);
}

.method-step h4 {
  margin: 4px 0;
}

.method-step p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.method-completed {
  border-left: 4px solid var(--accent);
}

.method-warning {
  border-left: 4px solid var(--warning);
}

.vector-list {
  display: grid;
  gap: 10px;
}

.vector {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 118px 190px 92px;
  gap: 14px;
  align-items: center;
  padding: 14px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  border-radius: var(--radius-container);
}

.vector:first-child {
  border-color: var(--accent);
  background: var(--color-primary-50);
}

.rank {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: #ffffff;
  font-weight: 850;
  border-radius: var(--radius-base);
}

.vector h4 {
  margin-bottom: 4px;
  font-size: 16px;
}

.vector p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.45;
}

.vector small {
  display: block;
  margin-top: 7px;
  color: var(--accent-strong);
  font-weight: 700;
}

.pill {
  justify-self: start;
  padding: 6px 10px;
  background: var(--surface);
  border: 1px solid var(--line);
  font-weight: 800;
  text-transform: capitalize;
  border-radius: var(--radius-base);
}

.direction-reduce {
  color: var(--bad);
  border-color: #f1b5b5;
  background: #fff5f5;
}

.direction-improve {
  color: var(--good);
  border-color: #b8e6c4;
  background: #f3fbf5;
}

.direction-monitor {
  color: var(--warning);
  border-color: #ffd0a8;
  background: #fff7ed;
}

.stat-label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 750;
  line-height: 1.35;
}

.importance {
  justify-self: end;
}

.import-grid > *,
.decision-controls > *,
.metric-grid > *,
.summary-row > * {
  min-width: 0;
}

.heatmap,
.table-wrap {
  max-width: 100%;
  overflow-x: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-container);
}

.heatmap table,
.table-wrap table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
}

th,
td {
  padding: 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  overflow-wrap: anywhere;
}

th {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  background: var(--surface-soft);
  overflow-wrap: anywhere;
}

.coefficient-list {
  display: grid;
  gap: 8px;
  padding: 8px;
  background: var(--surface-soft);
}

.coefficient-row {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) minmax(220px, 0.85fr);
  gap: 12px;
  align-items: center;
  padding: 10px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-base);
}

.coef-rank-badge {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  background: var(--color-primary-50);
  color: var(--accent);
  border: 1px solid var(--color-primary-100);
  border-radius: var(--radius-base);
  font-weight: 800;
}

.coef-main {
  min-width: 0;
}

.coef-main strong,
.coef-main span {
  display: block;
}

.coef-main strong {
  margin-bottom: 3px;
  overflow-wrap: normal;
  word-break: normal;
}

.coef-main span,
.coef-values span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.coef-values {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.coef-values > div {
  min-width: 0;
  padding: 8px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-base);
}

.coef-values strong {
  display: block;
  margin-top: 3px;
  color: var(--accent-strong);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.heat-cell {
  color: #0d221d;
  font-weight: 850;
  text-align: center;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.filter {
  min-height: 34px;
  background: var(--surface);
  color: var(--accent);
}

.filter.active {
  background: var(--accent);
  color: #ffffff;
}

.kpi-name {
  min-width: 220px;
}

.import-grid {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 18px;
}

.file-warning {
  border-color: #ffd0a8;
  background: #fff7ed;
}

.inline-error {
  padding: 16px;
  border: 1px solid #ffd0a8;
  background: #fff7ed;
  border-radius: var(--radius-container);
}

.inline-error strong {
  display: block;
  margin-bottom: 6px;
}

.inline-error p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.file-warning h3 {
  margin-bottom: 8px;
}

.file-warning p {
  max-width: 760px;
  color: var(--muted);
  line-height: 1.5;
}

.file-warning pre {
  max-width: 100%;
  overflow-x: auto;
  padding: 12px;
  background: var(--color-surface-950);
  color: var(--color-surface-50);
  border-radius: var(--radius-base);
}

dl,
dt,
dd {
  margin: 0;
}

.import-summary dl {
  display: grid;
  gap: 10px;
}

.import-summary div {
  padding: 12px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-container);
}

.import-summary dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.import-summary dd {
  margin-top: 5px;
  font-weight: 850;
}

@media (max-width: 1180px) {
  .hero,
  .decision-controls,
  .step-grid,
  .metric-grid,
  .literature-visual-grid,
  .import-grid {
    grid-template-columns: 1fr;
  }

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

  .hero-copy h2 {
    font-size: 36px;
  }
}

@media (max-width: 760px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
  }

  main {
    padding: 14px;
  }

  .hero-copy,
  .hero-panel,
  .section-band {
    padding: 16px;
  }

  .hero-copy {
    min-height: 0;
  }

  .hero-copy h2 {
    font-size: 28px;
  }

  .mini-stats,
  .step-grid,
  .method-score,
  .method-step,
  .summary-row,
  .coefficient-row,
  .coef-values {
    grid-template-columns: 1fr;
  }

  .coef-values strong {
    text-align: left;
  }

  .answer-card {
    display: grid;
    align-items: start;
  }

  .answer-card > div:last-child {
    min-width: 0;
    text-align: left;
  }

  .vector {
    grid-template-columns: 38px minmax(0, 1fr);
  }

  .vector .pill,
  .vector .stat-label,
  .vector .importance {
    grid-column: 2;
    justify-self: start;
  }

  .bar-row {
    grid-template-columns: 84px minmax(90px, 1fr) 42px;
  }
}