/* Theme and Dimensions */
:root {
  color-scheme: light;
  --bg: #f7f7f4;
  --panel: #ffffff;
  --ink: #202124;
  --muted: #686f78;
  --line: #d9ddd5;
  --soft-line: #eceee8;
  --accent: #246b5c;
  --accent-soft: #dcebe6;
  --bar: #a6c8be;
  --bar-before: #3e7c6b;
  --bar-muted: #cbd4ce;
  --missing: #a4aaa3;
  --row-h: 32px;
  --chart-h: 22px;
  --year-w: 13px;
  --year-gap: 2px;
  --award-year-w: 58px;
  --row-gap: 8px;
  --row-padding: 10px;
  --table-border: 1px;
  --chart-width: calc((var(--year-count) * var(--year-w)) + ((var(--year-count) - 1) * var(--year-gap)));
  --label-w: 255px;
  --citations-w: 84px;
  --award-citations-w: 96px;
  --h-index-w: 64px;
  --sort-arrow-w: 10px;
  --sort-gap: 4px;
  --chart-pad-r: 16px;
}

/* Page Defaults */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 13px/1.35 ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* Sticky Header */
header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(247, 247, 244, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.topbar {
  max-width: 1280px;
  margin: 0 auto;
  padding: 14px 20px 12px;
}

h1 {
  margin: 0 0 10px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0;
}

/* Search and Filters */
.controls {
  display: grid;
  grid-template-columns: minmax(220px, 360px) max-content;
  gap: 12px;
  align-items: center;
}

input[type="search"] {
  width: 100%;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 10px;
  background: white;
  color: var(--ink);
  font: inherit;
}

label.toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  white-space: nowrap;
  user-select: none;
}

/* About the Data */
.data-details {
  margin-bottom: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  overflow: hidden;
}

.data-details > summary {
  padding: 10px 14px;
  color: var(--accent);
  font-weight: 600;
  cursor: pointer;
}

.data-details > summary:hover {
  background: var(--accent-soft);
}

.data-details > summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -3px;
}

.data-details[open] > summary {
  border-bottom: 1px solid var(--soft-line);
}

.metadata {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  line-height: 1.45;
  padding: 12px 14px;
}

.coverage-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  max-width: 660px;
  margin: 0;
}

.coverage-stats > div {
  display: flex;
  flex-direction: column;
}

.coverage-stats dt {
  font-size: 12px;
}

.coverage-stats dd {
  order: -1;
  margin: 0 0 2px;
  font-size: 24px;
  font-weight: 650;
  line-height: 1.2;
  color: var(--ink);
}

.view-summary {
  margin: 8px 0;
  font-size: 12px;
}

.data-notes {
  padding-left: 18px;
}

.data-notes li + li {
  margin-top: 4px;
}

.data-resources {
  padding-top: 8px;
  border-top: 1px solid var(--soft-line);
}

.data-resources h2 {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--ink);
}

.data-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.data-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--accent);
  text-decoration: none;
}

.data-links a:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.data-links a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.file-type {
  color: var(--muted);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .04em;
}

@media (max-width: 480px) {
  .coverage-stats {
    gap: 12px;
  }
  .coverage-stats dd {
    font-size: 21px;
  }
}

/* Timeline Layout */
main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 12px 20px 28px;
  /* Contain wide timelines at tablet widths too, so the sticky header spans the page. */
  overflow-x: auto;
}

.table {
  min-width: calc(var(--award-year-w) + var(--label-w) + var(--citations-w) + var(--award-citations-w) + var(--h-index-w) + var(--chart-width) + var(--chart-pad-r) + (5 * var(--row-gap)) + (2 * var(--row-padding)) + (2 * var(--table-border)));
  background: var(--panel);
  border: var(--table-border) solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(0,0,0,0.03);
}

.row {
  display: grid;
  grid-template-columns: var(--award-year-w) var(--label-w) var(--citations-w) var(--award-citations-w) var(--h-index-w) 1fr;
  align-items: center;
  min-height: var(--row-h);
  border-bottom: 1px solid var(--soft-line);
  padding: 0 var(--row-padding);
  column-gap: var(--row-gap);
}

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

.head {
  min-height: 50px;
  background: #eef1eb;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  border-bottom: 1px solid var(--line);
}

/* Sortable Headers */
.sort-button {
  display: inline-grid;
  grid-template-columns: minmax(0, 1fr) var(--sort-arrow-w);
  align-items: center;
  gap: var(--sort-gap);
  max-width: 100%;
  border: 0;
  padding: 4px 0;
  background: none;
  color: inherit;
  font: inherit;
  text-align: inherit;
  text-transform: inherit;
  letter-spacing: inherit;
  cursor: pointer;
}

.sort-label {
  white-space: nowrap;
}

.sort-arrow {
  text-align: center;
  line-height: 1;
}

.sort-button:hover, [aria-sort] .sort-button {
  color: var(--accent);
}

.sort-button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.metric-header {
  text-align: right;
}

/* Recipient Names and Profile Links */
.year {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.author {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.author-name {
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.profile-links {
  display: inline-grid;
  grid-template-columns: repeat(3, 24px);
  flex: none;
  gap: 2px;
}

.profile-slot {
  height: 28px;
}

.profile-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 28px;
  border-radius: 3px;
  color: var(--accent);
  text-decoration: none;
}

.profile-link img {
  display: block;
  width: 15px;
  height: 15px;
}

.profile-link .profile-icon-acm {
  width: 18px;
  height: 18px;
}

.profile-link:hover {
  background: var(--accent-soft);
}

.profile-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

/* Numeric Values */
.metric {
  padding-right: calc(var(--sort-arrow-w) + var(--sort-gap));
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  text-align: right;
  white-space: nowrap;
}

/* Citation Histograms */
.chart-cell {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: var(--chart-pad-r);
}

.chart, .axis {
  display: grid;
  grid-template-columns: repeat(var(--year-count), var(--year-w));
  gap: var(--year-gap);
  width: var(--chart-width);
}

.chart {
  align-items: end;
  height: var(--chart-h);
}

.chart.quality-low {
  --bar: #c4c4c4;
  --bar-before: #888888;
  --bar-muted: #d0d0d0;
}

.bar {
  width: 100%;
  min-height: 1px;
  background: var(--bar);
  border-radius: 2px 2px 0 0;
}

.bar.before-induction {
  background: var(--bar-before);
}

.bar.zero {
  background: var(--bar-muted);
  opacity: .45;
}

/* Citation Tooltip */
.citation-tooltip {
  display: none;
  position: fixed;
  z-index: 20;
  pointer-events: none;
  width: max-content;
  max-width: calc(100vw - 16px);
  padding: 6px 9px;
  border-radius: 4px;
  background: var(--ink);
  color: white;
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  box-shadow: 0 2px 6px rgba(0, 0, 0, .18);
}

.missing {
  justify-content: flex-end;
  color: var(--missing);
  font-size: 12px;
  font-style: italic;
}

/* Year Axis */
.axis {
  justify-self: end;
  margin-right: var(--chart-pad-r);
  color: var(--muted);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
  border-bottom: 1px solid var(--line);
}

.axis-year {
  position: relative;
  height: 38px;
}

.axis-year::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 1px;
  height: 4px;
  background: var(--line);
  transform: translateX(-50%);
}

.axis-year.tick::after {
  height: 8px;
  background: var(--muted);
}

.axis-label {
  position: absolute;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
  white-space: nowrap;
}

/* Empty Results */
.empty {
  display: none;
  padding: 28px;
  text-align: center;
  color: var(--muted);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.empty.visible {
  display: block;
}

@media (max-width: 860px) {
  :root {
    --label-w: 235px;
    --year-w: 9px;
  }
  .controls {
    grid-template-columns: 1fr;
  }
}

/* Award Navigation */
.award-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-bottom: 12px;
}

.award-nav a {
  color: var(--accent);
  text-decoration: none;
  padding-bottom: 3px;
}

.award-nav a:hover {
  text-decoration: underline;
}

.award-nav a[aria-current="page"] {
  font-weight: 700;
  border-bottom: 2px solid var(--accent);
}

/* Landing Page */
.landing {
  max-width: 920px;
  padding: 64px 20px;
}

.landing h1 {
  font-size: 32px;
}

.landing-intro {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.6;
}

.award-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin: 32px 0;
}

.award-card {
  display: flex;
  flex-direction: column;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  text-decoration: none;
}

.award-card:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.award-card:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

.award-card h2 {
  margin: 0;
  font-size: 21px;
}

.award-card p {
  flex: 1;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
  margin: 12px 0 24px;
}

.award-card > span {
  color: var(--accent);
  font-weight: 600;
}

.landing-footer a {
  color: var(--accent);
}

@media (max-width: 600px) {
  .landing {
    padding-top: 32px;
  }
  .award-cards {
    grid-template-columns: 1fr;
  }
}