:root {
  color-scheme: light;
  --bg: #f4f7f6;
  --paper: #ffffff;
  --ink: #202524;
  --muted: #687370;
  --line: #d9e0dd;
  --green: #1f6f54;
  --blue: #315f8c;
  --red: #e3223f;
  --soft-green: #eaf4ef;
  --soft-blue: #eaf0f8;
  --shadow: 0 18px 50px rgba(31, 45, 40, 0.08);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--bg);
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(180deg, #ffffff 0, rgba(255, 255, 255, 0) 360px),
    var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 18px 0 12px;
  background: rgba(244, 247, 246, 0.86);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 999px;
  color: #fff;
  background: var(--ink);
}

.brand-name {
  font-size: 15px;
  letter-spacing: 0;
}

.site-nav,
.hero-actions,
.project-actions,
.factor-tabs,
.segmented {
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-nav {
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-link,
.primary-action,
.secondary-action,
.factor-tab,
.segment,
.icon-button {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 13px;
  color: #42504b;
  background: rgba(255, 255, 255, 0.72);
  text-decoration: none;
}

.nav-link.active,
.primary-action,
.factor-tab.active,
.segment.active {
  color: #fff;
  border-color: var(--ink);
  background: var(--ink);
}

.site-main {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 32px 0 70px;
}

.page {
  display: none;
}

.page.active {
  display: block;
}

.eyebrow,
.card-kicker {
  margin: 0 0 10px;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
  line-height: 1.05;
}

h1 {
  font-size: clamp(52px, 8vw, 104px);
}

h2 {
  font-size: 26px;
}

p {
  margin: 0;
}

.home-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 46px;
  align-items: center;
  min-height: 560px;
  padding: 24px 0 38px;
}

.simple-home {
  grid-template-columns: minmax(260px, 520px);
  justify-content: center;
  min-height: calc(100svh - 150px);
  padding-top: 10px;
}

.hero-copy {
  max-width: 780px;
}

.lead {
  max-width: 720px;
  margin: 20px 0 26px;
  color: #3b4643;
  font-size: 24px;
  line-height: 1.34;
}

.portrait-card {
  width: 100%;
  margin: 0;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.simple-home .portrait-card {
  max-width: 520px;
}

.portrait {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  border-radius: 6px;
  object-fit: cover;
  object-position: 50% 42%;
}

.portrait-card figcaption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 2px 0;
  color: var(--muted);
  font-size: 13px;
}

.simple-home .portrait-card figcaption {
  display: grid;
  gap: 8px;
  padding: 18px 4px 4px;
  color: var(--ink);
  font-size: clamp(18px, 2.2vw, 28px);
  font-weight: 700;
  line-height: 1.25;
  text-align: center;
}

.simple-home .portrait-card figcaption span + span {
  color: var(--muted);
  font-size: 16px;
  font-weight: 400;
}

.portrait-card strong {
  color: var(--ink);
}

.home-contact,
.security-project article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.home-contact {
  display: flex;
  align-items: baseline;
  gap: 18px;
  width: max-content;
  max-width: 100%;
}

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

.home-contact a,
.contact-panel a {
  color: var(--red);
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.security-project {
  max-width: 980px;
}

.security-project h2 {
  font-size: clamp(42px, 6vw, 76px);
}

.security-project p:not(.eyebrow) {
  max-width: 900px;
  margin-top: 18px;
  color: var(--muted);
  font-size: clamp(20px, 2.2vw, 30px);
  line-height: 1.38;
}

.page-heading {
  max-width: 900px;
  margin-bottom: 28px;
}

.page-heading h1 {
  font-size: clamp(48px, 7vw, 82px);
}

.page-heading p {
  max-width: 780px;
  margin-top: 15px;
  color: var(--muted);
  font-size: 19px;
}

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

.feature-section {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  gap: 16px;
}

.feature-copy,
.strategy-header,
.quant-sidebar,
.quant-panel,
.metric,
.diagnostic,
.flow-node,
.factor-home-grid article,
.contact-panel,
.cv-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.feature-copy,
.strategy-header,
.contact-panel,
.cv-panel {
  padding: 24px;
}

.feature-copy p {
  max-width: 820px;
  margin-top: 13px;
  color: var(--muted);
  font-size: 18px;
}

.feature-metrics {
  display: grid;
  gap: 10px;
}

.feature-metrics div {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--soft-blue);
}

.feature-metrics span,
.metric span,
.diagnostic span,
.flow-node span {
  display: block;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 12px;
}

.feature-metrics strong,
.metric strong,
.diagnostic strong,
.flow-node strong {
  display: block;
  overflow-wrap: anywhere;
  font-size: 19px;
}

.status-pill,
.tiny-chip {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 10px;
  border: 1px solid rgba(31, 111, 84, 0.24);
  border-radius: 999px;
  color: var(--green);
  background: var(--soft-green);
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}

.status-pill.partial {
  color: #7c5214;
  border-color: rgba(191, 126, 40, 0.32);
  background: #fff4dc;
}

.factor-tabs {
  width: max-content;
  max-width: 100%;
  margin: 0 0 16px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #e8eeec;
}

.factor-tab {
  min-width: 112px;
  background: transparent;
}

.factor-overview {
  display: grid;
  gap: 14px;
}

.text-link,
.publication-list a,
.breadcrumb button,
.contact-panel a {
  color: var(--red);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.factor-home-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.factor-home-grid article {
  padding: 18px;
}

.factor-home-grid span {
  display: block;
  margin-bottom: 12px;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.factor-home-grid strong {
  display: block;
  margin-bottom: 8px;
  font-size: 22px;
}

.factor-home-grid p {
  color: var(--muted);
}

.strategy-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 14px;
}

.strategy-header p {
  max-width: 760px;
  margin-top: 10px;
  color: var(--muted);
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.metric {
  min-width: 0;
  padding: 15px;
}

.metric strong {
  overflow: hidden;
  font-size: 24px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.quant-layout {
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.quant-sidebar,
.quant-panel {
  padding: 18px;
}

.donut-wrap {
  position: relative;
  width: min(210px, 100%);
  aspect-ratio: 1;
  margin: 0 auto 16px;
}

.donut {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: conic-gradient(var(--green) 0deg, var(--green) 180deg, #e3e8e4 180deg, #e3e8e4 360deg);
}

.donut::after {
  position: absolute;
  inset: 22px;
  border: 1px solid rgba(31, 111, 84, 0.14);
  border-radius: 50%;
  background: var(--paper);
  content: "";
}

.donut-center {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
}

.donut-center strong {
  font-size: 28px;
  line-height: 1;
}

.donut-center span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.allocation-list {
  display: grid;
  gap: 10px;
  margin: 0;
}

.allocation-list div {
  min-width: 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfb;
}

.allocation-list dt {
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 12px;
}

.allocation-list dd {
  margin: 0;
  overflow: hidden;
  font-size: 18px;
  font-weight: 800;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.toolbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.search-control,
.backtest-controls label {
  display: grid;
  gap: 5px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.search-control input,
.backtest-controls select {
  width: 100%;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 12px;
  color: var(--ink);
  background: var(--paper);
  outline: none;
}

.section-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
}

canvas {
  display: block;
  width: 100%;
  height: 260px;
  margin-bottom: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfb;
}

#backtestCanvas {
  height: 300px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  min-width: 900px;
  border-collapse: collapse;
}

th,
td {
  padding: 11px 14px;
  border-bottom: 1px solid #e7ebe7;
  text-align: right;
  white-space: nowrap;
}

th {
  color: var(--muted);
  background: #f7f9f8;
  font-size: 12px;
  font-weight: 800;
}

th:nth-child(1),
td:nth-child(1),
th:nth-child(2),
td:nth-child(2) {
  text-align: left;
}

.ticker-cell {
  display: inline-flex;
  min-width: 64px;
  align-items: center;
  gap: 8px;
  font-weight: 800;
}

.ticker-dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--green);
}

.score-bar {
  display: grid;
  grid-template-columns: minmax(72px, 1fr) 72px;
  gap: 8px;
  align-items: center;
}

.score-track {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: #e6ebe8;
}

.score-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--green), var(--blue));
}

.backtest-controls {
  display: grid;
  grid-template-columns: repeat(4, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

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

.diagnostic,
.flow-node {
  min-width: 0;
  padding: 16px;
  box-shadow: none;
}

.database-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 30px minmax(0, 1fr) 30px minmax(0, 1fr);
  gap: 10px;
  align-items: stretch;
  margin-bottom: 14px;
}

.flow-node small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
}

.flow-arrow {
  display: grid;
  place-items: center;
  color: var(--green);
  font-size: 22px;
  font-weight: 800;
}

.publication-page {
  max-width: 1120px;
  padding-top: 4px;
  background: #fff;
}

.breadcrumb {
  display: flex;
  gap: 6px;
  align-items: center;
  margin-bottom: 34px;
  color: var(--ink);
  font-size: 18px;
}

.breadcrumb button {
  border: 0;
  padding: 0;
  background: transparent;
  font: inherit;
}

.publication-page h1 {
  margin-bottom: 20px;
  font-size: clamp(56px, 8vw, 94px);
}

.academics-subheading {
  margin-bottom: 12px;
  font-size: 24px;
}

.publication-note {
  max-width: 1080px;
  margin-bottom: 28px;
  color: #2f3433;
  font-size: clamp(20px, 2.1vw, 30px);
  line-height: 1.45;
}

.publication-list {
  margin: 0;
  padding-left: 36px;
  color: var(--ink);
  font-size: clamp(19px, 2vw, 29px);
  line-height: 1.38;
}

.publication-list li {
  margin: 8px 0;
  padding-left: 8px;
}

.publication-list em {
  font-style: normal;
  color: var(--muted);
}

.contact-panel,
.cv-panel {
  max-width: 680px;
}

.cv-panel p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 18px;
}

.cv-page {
  max-width: 940px;
}

.cv-header {
  margin-bottom: 34px;
}

.cv-header h1,
.cv-header h2 {
  margin-bottom: 10px;
  font-size: clamp(38px, 6vw, 68px);
}

.cv-header p {
  color: var(--muted);
  font-size: 18px;
}

.cv-section {
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.cv-section h2 {
  margin-bottom: 12px;
  font-size: 22px;
}

.cv-section p {
  max-width: 820px;
  color: #303735;
  font-size: 17px;
}

.cv-section p + p {
  margin-top: 8px;
}

.cv-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 22px;
}

.cv-list li {
  padding-left: 4px;
}

.cv-list strong {
  font-weight: 750;
}

.cv-list span {
  color: var(--muted);
}

.cv-list a {
  color: var(--red);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.hidden {
  display: none;
}

@media (max-width: 940px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .home-hero,
  .feature-section,
  .quant-layout {
    grid-template-columns: 1fr;
  }

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

  .portrait-card {
    width: min(360px, 100%);
  }

  .factor-home-grid,
  .metric-strip,
  .backtest-grid,
  .diagnostics-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .database-flow {
    grid-template-columns: 1fr;
  }

  .flow-arrow {
    min-height: 18px;
    transform: rotate(90deg);
  }
}

@media (max-width: 680px) {
  .site-header,
  .site-main {
    width: min(100% - 22px, 1180px);
  }

  .site-nav,
  .hero-actions,
  .strategy-header,
  .toolbar {
    align-items: stretch;
    flex-direction: column;
    width: 100%;
  }

  .nav-link,
  .primary-action,
  .secondary-action,
  .factor-tabs,
  .segmented,
  .project-actions {
    width: 100%;
  }

  .factor-tabs,
  .segmented {
    display: grid;
  }

  .lead {
    font-size: 19px;
  }

  .factor-home-grid,
  .metric-strip,
  .backtest-grid,
  .diagnostics-grid,
  .backtest-controls {
    grid-template-columns: 1fr;
  }

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

  .publication-list,
  .publication-note {
    font-size: 20px;
  }

  .contact-panel a {
    font-size: 22px;
  }

  .home-contact {
    align-items: flex-start;
    flex-direction: column;
    width: 100%;
  }

  .simple-home {
    grid-template-columns: minmax(0, 1fr);
    min-height: 0;
    padding-top: 10px;
  }

  .simple-home .portrait-card {
    width: min(280px, 100%);
    margin: 0 auto;
  }

  .simple-home .portrait-card figcaption {
    font-size: 16px;
  }

  .simple-home .portrait-card figcaption span + span {
    font-size: 14px;
  }
}

body {
  background: #fff;
}

.site-header {
  position: static;
  border-bottom: 1px solid var(--line);
  background: #fff;
  backdrop-filter: none;
}

.brand-mark {
  display: none;
}

.brand-name {
  font-size: 18px;
}

.site-nav {
  gap: 18px;
}

.nav-link {
  min-height: auto;
  border: 0;
  border-radius: 0;
  padding: 0;
  color: var(--ink);
  background: transparent;
}

.nav-link.active {
  color: var(--red);
  border-color: transparent;
  background: transparent;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.site-main {
  padding-top: 54px;
}

.simple-home {
  grid-template-columns: minmax(0, 460px);
  min-height: 0;
  padding: 0 0 70px;
}

.simple-home .portrait-card {
  max-width: 460px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.simple-home .portrait {
  border-radius: 0;
}

.simple-home .portrait-card figcaption {
  padding: 22px 0 0;
  color: var(--ink);
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 400;
}

@media (max-width: 680px) {
  .site-header {
    gap: 14px;
  }

  .site-nav {
    align-items: center;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 10px 16px;
    width: auto;
  }

  .nav-link {
    width: auto;
  }

  .site-main {
    padding-top: 34px;
  }

  .simple-home .portrait-card {
    width: min(260px, 100%);
  }
}