:root {
  --bg:
    radial-gradient(circle at 10% 10%, rgba(87, 166, 255, 0.22), transparent 24%),
    radial-gradient(circle at 88% 6%, rgba(210, 226, 255, 0.9), transparent 28%),
    linear-gradient(135deg, #e7f3fb 0%, #f1f5fb 40%, #e8ecf5 100%);
  --panel: rgba(255, 255, 255, 0.72);
  --panel-strong: rgba(255, 255, 255, 0.9);
  --menu: rgba(247, 250, 252, 0.76);
  --text: #101a34;
  --muted: #60718d;
  --accent: #2456d4;
  --accent-2: #40b4ff;
  --line: rgba(22, 33, 62, 0.1);
  --shadow: 0 28px 70px rgba(31, 53, 99, 0.12);
  --radius: 28px;
}

body[data-theme="dark"] {
  --bg:
    radial-gradient(circle at 8% 8%, rgba(176, 96, 255, 0.18), transparent 22%),
    radial-gradient(circle at 100% 100%, rgba(21, 206, 255, 0.12), transparent 28%),
    linear-gradient(135deg, #23283f 0%, #1f2438 38%, #171c2f 100%);
  --panel: rgba(24, 30, 52, 0.84);
  --panel-strong: rgba(28, 35, 58, 0.92);
  --menu: rgba(18, 24, 44, 0.88);
  --text: #f3f7ff;
  --muted: #9ba8c6;
  --accent: #d968ff;
  --accent-2: #2ce6ff;
  --line: rgba(173, 188, 255, 0.1);
  --shadow: 0 36px 90px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
}

body[data-theme="dark"] {
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "SF Pro Display", "Prompt", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  transition: background 220ms ease, color 220ms ease;
}

a {
  color: inherit;
  text-decoration: none;
}

.page-shell {
  width: min(1480px, calc(100vw - 28px));
  margin: 0 auto;
  padding: 16px 0 44px;
}

.hero {
  padding: 8px 0 24px;
}

.menu-bar {
  position: sticky;
  top: 14px;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--menu);
  backdrop-filter: blur(24px);
  box-shadow: var(--shadow);
}

.menu-bar,
.nav-primary,
.content-grid,
.main-panel,
.side-panel,
.glass-panel,
.chart-card,
.result-panel,
.extreme-card,
.stat-card {
  min-width: 0;
}

.nav-primary {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
  flex: 1;
  justify-content: space-between;
}

.brand,
.menu-items,
.theme-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.brand-chip,
.menu-button,
.theme-button {
  min-height: 38px;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.88rem;
}

.brand-chip {
  display: inline-flex;
  align-items: center;
  background: linear-gradient(135deg, #102245 0%, #274fa0 100%);
  color: #fff;
  letter-spacing: 0.04em;
}

body[data-theme="dark"] .brand-chip {
  background: linear-gradient(135deg, #4a2c7f 0%, #2097ff 100%);
}

.brand-text {
  font-size: 0.94rem;
  color: var(--muted);
}

.menu-button,
.theme-button {
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  flex-shrink: 0;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease, color 180ms ease;
}

.menu-button.active,
.menu-button:hover,
.theme-button.active,
.theme-button:hover {
  background: var(--panel-strong);
  border-color: var(--line);
  color: var(--text);
  transform: translateY(-1px);
}

.theme-toggle {
  flex-shrink: 0;
  padding: 4px;
  background: rgba(255, 255, 255, 0.22);
  border-radius: 999px;
}

body[data-theme="dark"] .theme-toggle {
  background: rgba(255, 255, 255, 0.04);
}

.hero-copy {
  padding: 52px 4px 0;
  max-width: 1250px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1,
.panel-heading h2,
.card-header h3 {
  margin: 0;
}

.hero h1 {
  display: grid;
  gap: 4px;
  letter-spacing: -0.055em;
}

.hero-title-line {
  display: block;
  font-size: clamp(2.8rem, 6vw, 6.2rem);
  line-height: 0.96;
  text-wrap: balance;
}

.hero-title-line:last-child {
  max-width: 10.5ch;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(320px, 0.82fr);
  gap: 22px;
  align-items: start;
}

.main-panel,
.side-panel {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.glass-panel,
.chart-card,
.stat-card,
.result-panel,
.extreme-card {
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(22px);
  box-shadow: var(--shadow);
}

.glass-panel {
  border-radius: var(--radius);
  padding: 24px;
}

.summary-grid,
.chart-grid,
.extreme-grid {
  display: grid;
  gap: 18px;
}

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

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

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

.panel-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.panel-heading.compact {
  margin-bottom: 12px;
}

.panel-heading h2 {
  font-size: 1.46rem;
  letter-spacing: -0.03em;
}

.scope-note,
.stat-label,
.stat-sub,
label,
.metric-chip span,
.bar-meta,
.hbar-meta,
.empty-note,
.legend-row,
.result-panel.muted,
.extreme-card p {
  color: var(--muted);
}

.stat-card,
.chart-card,
.extreme-card {
  border-radius: 24px;
  padding: 18px;
}

.stat-card {
  background: var(--panel-strong);
}

.stat-label {
  margin: 0 0 10px;
  font-size: 0.9rem;
}

.stat-value {
  margin: 0;
  font-size: clamp(1.9rem, 2.8vw, 2.7rem);
  letter-spacing: -0.05em;
}

.stat-sub {
  margin: 7px 0 0;
  font-size: 0.9rem;
}

.chart-frame {
  min-height: 254px;
  margin-top: 16px;
}

.chart-center {
  display: grid;
  place-items: center;
}

.rank-form,
.stack-form {
  display: grid;
  gap: 14px;
}

.rank-form {
  grid-template-columns: 1.3fr 1fr auto;
  align-items: end;
}

label {
  display: grid;
  gap: 8px;
  font-size: 0.92rem;
}

input,
select,
button {
  font: inherit;
}

input,
select {
  width: 100%;
  min-height: 52px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel-strong);
  color: var(--text);
  transition: border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

input:focus,
select:focus {
  outline: none;
  border-color: color-mix(in srgb, var(--accent) 36%, transparent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 12%, transparent);
}

.primary-button,
.download-button {
  min-height: 52px;
  border: 0;
  border-radius: 18px;
  cursor: pointer;
  transition: transform 160ms ease, opacity 160ms ease, box-shadow 160ms ease;
}

.primary-button {
  padding: 0 20px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  color: #fff;
  box-shadow: 0 18px 34px color-mix(in srgb, var(--accent) 24%, transparent);
}

.download-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 14px;
  padding: 0 16px;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--text);
}

.primary-button:hover,
.download-button:hover {
  transform: translateY(-1px);
}

.result-panel {
  margin-top: 14px;
  padding: 18px;
  border-radius: 22px;
  background: var(--panel-strong);
}

.result-title {
  margin: 0 0 8px;
  font-size: 1.12rem;
}

.result-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.metric-chip {
  padding: 12px 14px;
  border-radius: 18px;
  background: color-mix(in srgb, var(--accent) 10%, var(--panel-strong));
}

.metric-chip strong {
  display: block;
  font-size: 1.3rem;
  color: var(--text);
}

.category-list,
.institution-table {
  margin-top: 16px;
}

.category-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

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

.bar-chart,
.bell-chart,
.hbar-chart {
  width: 100%;
}

.bar-chart,
.hbar-chart {
  display: grid;
  gap: 12px;
}

.bar-row,
.hbar-row {
  display: grid;
  gap: 8px;
}

.bar-meta,
.hbar-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
}

.bar-track,
.hbar-track {
  height: 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--muted) 18%, transparent);
  overflow: hidden;
}

.bar-fill,
.hbar-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.bell-chart {
  display: block;
}

.bell-x-label,
.bell-y-label {
  fill: var(--muted);
  font-size: 11px;
  font-family: "SF Pro Display", "Prompt", "Helvetica Neue", Arial, sans-serif;
}

.donut-wrap {
  position: relative;
  width: 240px;
  height: 240px;
}

.donut-center {
  position: absolute;
  inset: 54px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: var(--panel-strong);
  text-align: center;
}

.donut-center strong {
  font-size: 2rem;
  letter-spacing: -0.04em;
}

.legend-list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.legend-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.legend-label {
  display: flex;
  align-items: center;
  gap: 10px;
}

.legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.extreme-card h3,
.chart-card h3 {
  font-size: 1.08rem;
}

.table-wrap {
  max-height: 360px;
  overflow: auto;
  border-radius: 18px;
  border: 1px solid var(--line);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

thead th {
  position: sticky;
  top: 0;
  background: var(--panel-strong);
  text-align: left;
  padding: 12px;
}

tbody td {
  padding: 12px;
  border-top: 1px solid var(--line);
  vertical-align: top;
}

.svg-chart {
  width: 100%;
  height: auto;
}

@media (max-width: 1180px) {
  .content-grid {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 980px) {
  .menu-bar,
  .nav-primary {
    flex-direction: column;
    align-items: flex-start;
  }

  .menu-bar {
    border-radius: 28px;
  }

  .menu-items {
    width: 100%;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    padding-bottom: 4px;
    scrollbar-width: thin;
  }

  .menu-items::-webkit-scrollbar {
    height: 6px;
  }

  .chart-grid,
  .rank-form {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    padding-top: 34px;
  }

  .hero-title-line:last-child {
    max-width: 100%;
  }
}

@media (max-width: 820px) {
  .page-shell {
    width: min(100vw - 18px, 100%);
  }

  .side-panel,
  .chart-grid,
  .summary-grid,
  .extreme-grid,
  .result-metrics {
    grid-template-columns: 1fr;
  }

  .glass-panel {
    padding: 18px;
  }

  .panel-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .theme-toggle {
    width: 100%;
    justify-content: stretch;
  }

  .theme-button {
    flex: 1;
  }
}

@media (max-width: 560px) {
  .page-shell {
    padding-bottom: 24px;
  }

  .menu-bar {
    top: 8px;
    padding: 10px;
  }

  .hero {
    padding-bottom: 18px;
  }

  .hero-copy {
    padding-top: 22px;
  }

  .brand-text {
    font-size: 0.84rem;
  }

  .menu-items {
    gap: 8px;
  }

  .brand {
    gap: 8px;
  }

  .menu-button,
  .brand-chip,
  .theme-button {
    min-height: 34px;
    padding: 7px 12px;
    font-size: 0.8rem;
  }

  .hero-title-line {
    font-size: clamp(2.35rem, 10vw, 3.7rem);
    line-height: 0.98;
  }

  .stat-value {
    font-size: 2rem;
  }

  .panel-heading h2 {
    font-size: 1.2rem;
  }

  .chart-frame {
    min-height: 220px;
  }

  thead th,
  tbody td {
    padding: 10px;
  }
}

@media (max-width: 900px) and (orientation: landscape) {
  .page-shell {
    width: min(100vw - 22px, 100%);
  }

  .menu-bar {
    top: 8px;
    padding: 10px 12px;
  }

  .hero-copy {
    padding-top: 20px;
  }

  .hero-title-line {
    font-size: clamp(2.2rem, 5.8vw, 4rem);
    line-height: 0.98;
  }

  .summary-grid,
  .extreme-grid,
  .side-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

  .rank-form .primary-button {
    grid-column: 1 / -1;
  }

  .chart-frame {
    min-height: 200px;
  }
}

@media (max-width: 740px) and (orientation: landscape) {
  .summary-grid,
  .extreme-grid,
  .chart-grid,
  .side-panel,
  .result-metrics {
    grid-template-columns: 1fr;
  }

  .glass-panel {
    padding: 16px;
  }
}

@media (max-height: 500px) and (orientation: landscape) {
  .menu-bar {
    position: relative;
    top: 0;
  }

  .hero-copy {
    padding-top: 16px;
  }

  .eyebrow,
  .section-kicker {
    margin-bottom: 6px;
  }

  .hero-title-line {
    font-size: clamp(2rem, 5vw, 3.2rem);
  }
}