.research-page .research-index {
  --ri-quiet: #515b51;
  --ri-accent: #37513c;
  --ri-line: #ced3c9;
  --ri-selected: #e4e9df;
  --ri-tile: #f8f8f4;
  max-width: 1240px;
  padding-top: clamp(32px, 5vw, 68px);
}

html[data-funnel-theme="dark"] .research-page .research-index {
  --ri-quiet: #b7c1b5;
  --ri-accent: #c5d9c0;
  --ri-line: #3b453d;
  --ri-selected: #29362b;
  --ri-tile: #1b211c;
}

.research-index [hidden] {
  display: none !important;
}

.research-index .ri-heading {
  margin: 0 0 clamp(24px, 4vw, 42px);
}

.research-index .ri-heading h1 {
  margin: 0;
  font-size: clamp(40px, 4vw, 54px);
  font-weight: 500;
  line-height: 1.04;
  letter-spacing: -.055em;
}

.research-index .ri-heading p {
  max-width: 52ch;
  margin: 12px 0 0;
  color: var(--ri-quiet);
  font-size: 16px;
  line-height: 1.6;
}

.research-index .ri-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 22px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--ri-line);
}

.research-index .ri-categories,
.research-index .ri-options,
.research-index .ri-views,
.research-index .ri-field {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.research-index .ri-options {
  gap: 8px 14px;
}

.research-index .ri-toolbar button,
.research-index .ri-toolbar select,
.research-index .ri-empty button {
  appearance: none;
  min-height: 40px;
  margin: 0;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: inherit;
  font: inherit;
  font-size: 14px;
  cursor: pointer;
}

.research-index .ri-categories button,
.research-index .ri-empty button {
  padding: 0 11px;
}

.research-index .ri-toolbar button[aria-pressed="false"],
.research-index .ri-field label {
  color: var(--ri-quiet);
}

.research-index .ri-toolbar button[aria-pressed="true"],
.research-index .ri-toolbar button:hover,
.research-index .ri-toolbar select:hover,
.research-index .ri-empty button:hover {
  background: var(--ri-selected);
  color: inherit;
}

.research-index .ri-toolbar button:focus-visible,
.research-index .ri-toolbar select:focus-visible,
.research-index .ri-empty button:focus-visible,
.research-index .ri-copy a:focus-visible {
  outline: 2px solid var(--ri-accent);
  outline-offset: 3px;
}

.research-index .ri-field label {
  font-size: 13px;
}

.research-index .ri-toolbar select {
  appearance: auto;
  max-width: 154px;
  padding: 0 4px;
}

.research-index .ri-toolbar option {
  background: var(--ri-tile);
  color: inherit;
}

.research-index .ri-views {
  flex-wrap: nowrap;
  gap: 2px;
}

.research-index .ri-views button {
  display: grid;
  width: 40px;
  place-items: center;
  padding: 0;
}

.research-index .ri-count {
  margin: 12px 0 0;
  color: var(--ri-quiet);
  font-size: 12px;
  line-height: 1.4;
}

.research-index .ri-entry {
  display: grid;
  grid-template-columns: minmax(145px, .29fr) minmax(0, 1fr);
  align-items: start;
  gap: 12px clamp(22px, 4vw, 54px);
  padding: 25px 0;
  border-bottom: 1px solid var(--ri-line);
}

.research-index .ri-figure {
  display: none;
}

.research-index .ri-meta {
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-width: 0;
  padding-top: 2px;
  font-size: 14px;
  line-height: 1.45;
}

.research-index .ri-meta p,
.research-index .ri-copy p {
  margin: 0;
}

.research-index .ri-meta p {
  font-weight: 560;
}

.research-index .ri-meta time,
.research-index .ri-copy p {
  color: var(--ri-quiet);
}

.research-index .ri-meta .ri-date {
  color: var(--ri-quiet);
  font-size: 13px;
  font-weight: 400;
}

.research-index .ri-copy h2 {
  margin: 0 0 6px;
  font-size: clamp(19px, 1.8vw, 22px);
  font-weight: 550;
  line-height: 1.3;
  letter-spacing: -.024em;
}

.research-index .ri-copy a {
  color: inherit;
  text-decoration: none;
}

.research-index .ri-copy a:hover,
.research-index .ri-copy a:focus-visible {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: .18em;
}

.research-index .ri-copy p {
  max-width: 69ch;
  font-size: 15px;
  line-height: 1.6;
}

.research-index .ri-copy .ri-status {
  margin-top: 8px;
  color: var(--ri-accent);
  font-size: 12px;
  line-height: 1.55;
}

.research-index .ri-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: start;
  gap: 30px clamp(16px, 3vw, 32px);
  margin-top: 22px;
}

.research-index .ri-grid .ri-entry {
  display: block;
  min-width: 0;
  padding: 0 0 22px;
}

.research-index .ri-grid .ri-figure {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  margin-bottom: 14px;
  border: 1px solid var(--ri-line);
  border-radius: 10px;
  object-fit: contain;
  background: var(--ri-tile);
}

.research-index .ri-grid .ri-meta {
  flex-direction: row;
  flex-wrap: wrap;
  gap: 4px 12px;
  margin-bottom: 14px;
}

.research-index .ri-empty {
  padding: 24px 0;
  border-bottom: 1px solid var(--ri-line);
}

.research-index .ri-empty p {
  margin: 0 0 6px;
}

.research-index .ri-empty button {
  border-color: var(--ri-line);
}

.research-index .ri-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 24px;
  margin: 30px 0 0;
  font-size: 14px;
}

@media (max-width: 620px) {
  .research-index .ri-entry {
    grid-template-columns: minmax(0, 1fr);
    gap: 7px;
    padding: 20px 0;
  }

  .research-index .ri-meta {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 4px 12px;
  }

  .research-index .ri-options {
    display: grid;
    width: 100%;
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr) auto;
    gap: 6px;
  }

  .research-index .ri-field {
    position: relative;
    min-width: 0;
  }

  .research-index .ri-field label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }

  .research-index .ri-field select {
    width: 100%;
    min-width: 0;
    max-width: none;
    border-color: var(--ri-line);
    font-size: 13px;
  }

  .research-index .ri-categories {
    gap: 3px;
  }

  .research-index .ri-categories button {
    padding-inline: 7px;
    font-size: 13px;
  }
}

@media (max-width: 900px) {
  .research-index .ri-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 540px) {
  .research-index .ri-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}