/* Research index — a responsive archive ledger, intentionally scoped to /research/. */

.research-index-page .research-index-main,
.research-index-page .research-index-main * { box-sizing: border-box; }

/* Research index metadata needs a quieter tone without falling below the
   readable contrast threshold against the paper background. */
.research-index-page { --research-muted: #596565; }

.research-index-page .research-index-main {
  width: min(1520px, calc(100% - 72px));
  overflow: clip;
}

.research-index-page .research-index-hero {
  display: grid;
  grid-template-columns: minmax(156px, 1.55fr) minmax(0, 10.45fr);
  column-gap: clamp(32px, 5vw, 92px);
  align-items: end;
  min-height: min(680px, 66vh);
  padding: clamp(128px, 13vw, 208px) 0 clamp(58px, 5.8vw, 92px);
  border-bottom: 1px solid var(--research-ink);
}

.research-index-page .research-index-hero__meta,
.research-index-page .research-index-hero__statement { min-width: 0; }

.research-index-page .research-index-hero__meta {
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-self: stretch;
  justify-content: flex-end;
  padding-bottom: 7px;
}

.research-index-page .research-index-hero__meta p,
.research-index-page .research-index-hero__meta span,
.research-index-page .research-index-hero__statement > p,
.research-index-page .research-index-entry__index small,
.research-index-page .research-index-card > div > small {
  margin: 0;
  color: var(--research-red);
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.145em;
  line-height: 1.28;
  text-transform: uppercase;
}

.research-index-page .research-index-hero__meta span {
  color: var(--research-muted);
  font-size: 0.63rem;
  letter-spacing: 0.1em;
}

.research-index-page .research-index-hero__statement {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(230px, 0.39fr);
  column-gap: clamp(28px, 4vw, 74px);
}

.research-index-page .research-index-hero__statement > p {
  grid-column: 1 / -1;
  margin-bottom: clamp(32px, 4vw, 56px);
}

.research-index-page .research-index-hero h1 {
  max-width: 11.5ch;
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(4.65rem, 8.3vw, 9.65rem);
  font-weight: 500;
  line-height: 0.79;
  letter-spacing: -0.062em;
  text-wrap: balance;
}

.research-index-page .research-index-hero h1 em,
.research-index-page .research-index-card h2 em {
  font-style: italic;
  font-weight: 400;
}

.research-index-page .research-index-hero__statement > span {
  align-self: end;
  max-width: 29ch;
  padding-bottom: 7px;
  color: var(--research-muted);
  font-size: clamp(0.98rem, 1.18vw, 1.14rem);
  line-height: 1.5;
}

.research-index-page .research-index-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(72px, 9vw, 142px);
  padding: clamp(68px, 7vw, 108px) 0 clamp(104px, 11vw, 180px);
}

.research-index-page .research-index-entry {
  display: grid;
  grid-template-columns: minmax(156px, 1.55fr) minmax(0, 10.45fr);
  column-gap: clamp(32px, 5vw, 92px);
  min-width: 0;
}

.research-index-page .research-index-entry__index {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-self: start;
  padding-top: 8px;
}

.research-index-page .research-index-entry__index span {
  color: var(--research-ink);
  font-family: var(--font-serif);
  font-size: clamp(2.45rem, 3.8vw, 4.25rem);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.78;
}

.research-index-page .research-index-entry__index small {
  color: var(--research-red);
  font-size: 0.62rem;
}

.research-index-page .research-index-card {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(340px, 0.9fr);
  min-width: 0;
  color: var(--research-ink);
  border-top: 1px solid var(--research-ink);
  border-bottom: 1px solid var(--research-line);
  text-decoration: none;
}

.research-index-page .research-index-card figure,
.research-index-page .research-index-card > div { min-width: 0; }

.research-index-page .research-index-card figure {
  min-height: 0;
  margin: 0;
  aspect-ratio: 1.08 / 1;
  overflow: hidden;
  background: #111;
}

.research-index-page .research-index-entry--secondary .research-index-card figure { aspect-ratio: 1.35 / 1; }

.research-index-page .research-index-card figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.77) contrast(1.05);
  transform: scale(1.001);
  transition: filter 240ms ease, transform 700ms var(--motion-ease-out);
  will-change: transform;
}

/* Research 003 uses a field photograph as its cover: the title sits in the
   quiet lower-left margin, leaving the crossing itself legible. */
.research-index-page .research003-index-cover { position: relative; isolation: isolate; }

.research-index-page .research003-index-cover::after {
  position: absolute;
  z-index: 1;
  inset: 0;
  content: "";
  pointer-events: none;
  background: linear-gradient(180deg, rgba(9, 14, 13, 0.02) 28%, rgba(9, 14, 13, 0.12) 54%, rgba(7, 11, 10, 0.78) 100%);
}

.research-index-page .research003-index-cover img { object-position: center 61%; }

.research-index-page .research003-index-cover figcaption {
  position: absolute;
  z-index: 2;
  right: clamp(18px, 2.4vw, 34px);
  bottom: clamp(18px, 2.4vw, 34px);
  left: clamp(18px, 2.4vw, 34px);
  display: grid;
  gap: 10px;
  color: #fffdf6;
}

.research-index-page .research003-index-cover small,
.research-index-page .research003-index-cover span {
  font-family: var(--font-ui);
  font-size: 0.61rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  line-height: 1.35;
  text-transform: uppercase;
}

.research-index-page .research003-index-cover b {
  max-width: 7ch;
  font-family: var(--font-serif);
  font-size: clamp(2.7rem, 4.6vw, 5.7rem);
  font-weight: 500;
  letter-spacing: -0.06em;
  line-height: 0.78;
}

.research-index-page .research003-index-cover span {
  color: rgba(255, 253, 246, 0.78);
  font-size: 0.56rem;
}

.research-index-page .research-index-card:hover figure img,
.research-index-page .research-index-card:focus-visible figure img {
  filter: saturate(0.98) contrast(1.02);
  transform: scale(1.025);
}

.research-index-page .research-index-card > div {
  display: flex;
  flex-direction: column;
  padding: clamp(26px, 3vw, 50px) 0 clamp(24px, 2.6vw, 42px) clamp(26px, 3vw, 50px);
}

.research-index-page .research-index-card > div > small { font-size: 0.64rem; }

.research-index-page .research-index-card h2 {
  max-width: 9.5ch;
  margin: clamp(38px, 5.1vw, 76px) 0 24px;
  font-family: var(--font-serif);
  font-size: clamp(3rem, 5.4vw, 6.8rem);
  font-weight: 500;
  line-height: 0.81;
  letter-spacing: -0.062em;
  overflow-wrap: normal;
  text-wrap: balance;
  word-break: normal;
}

.research-index-page .research-index-entry--secondary .research-index-card h2 {
  max-width: 11ch;
  font-size: clamp(2.75rem, 4.5vw, 5.2rem);
}

.research-index-page .research-index-card > div > p {
  max-width: 30ch;
  margin: 0;
  font-size: clamp(1.04rem, 1.45vw, 1.48rem);
  line-height: 1.24;
}

.research-index-page .research-index-card dl {
  display: grid;
  margin: auto 0 30px;
  padding-top: clamp(46px, 6vw, 86px);
  border-top: 1px solid var(--research-line);
}

.research-index-page .research-index-card dl div {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  gap: 14px;
  padding: 9px 0;
  border-bottom: 1px solid var(--research-line);
}

.research-index-page .research-index-card dt,
.research-index-page .research-index-card dd {
  margin: 0;
  font-size: 0.72rem;
  line-height: 1.4;
}

.research-index-page .research-index-card dt {
  color: var(--research-muted);
  text-transform: uppercase;
}

.research-index-page .research-index-card dd { overflow-wrap: break-word; }

.research-index-page .research-index-card > div > span {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.research-index-page .research-index-card:focus-visible {
  outline: 2px solid var(--research-red);
  outline-offset: 5px;
}

@media (max-width: 1180px) {
  .research-index-page .research-index-main { width: min(100% - 48px, 1120px); }
  .research-index-page .research-index-hero,
  .research-index-page .research-index-entry {
    grid-template-columns: 116px minmax(0, 1fr);
    column-gap: clamp(28px, 4vw, 54px);
  }
  .research-index-page .research-index-hero { min-height: 0; padding-top: 142px; }
  .research-index-page .research-index-hero__statement { grid-template-columns: minmax(0, 1fr) minmax(220px, 0.42fr); }
  .research-index-page .research-index-hero h1 { font-size: clamp(4.45rem, 8.7vw, 7.4rem); }
  .research-index-page .research-index-card { grid-template-columns: minmax(0, 1.16fr) minmax(320px, 0.84fr); }
  .research-index-page .research-index-card h2 { font-size: clamp(2.85rem, 5.35vw, 4.75rem); }
}

@media (max-width: 900px) {
  .research-index-page .research-index-main { width: calc(100% - 40px); overflow: visible; }
  .research-index-page .research-index-hero { grid-template-columns: 1fr; gap: 30px; padding-top: 118px; }
  .research-index-page .research-index-hero__meta { display: grid; grid-template-columns: 1fr auto; gap: 20px; padding: 0; }
  .research-index-page .research-index-hero__meta span { text-align: right; }
  .research-index-page .research-index-hero__statement { grid-template-columns: minmax(0, 1fr) minmax(210px, 0.42fr); }
  .research-index-page .research-index-hero h1 { font-size: clamp(4rem, 10.8vw, 6.6rem); }
  .research-index-page .research-index-entry { grid-template-columns: 1fr; gap: 16px; }
  .research-index-page .research-index-entry__index { display: grid; grid-template-columns: auto 1fr; align-items: baseline; gap: 12px; padding: 0; }
  .research-index-page .research-index-entry__index small { margin-left: 2px; }
  .research-index-page .research-index-card { grid-template-columns: minmax(0, 1.06fr) minmax(285px, 0.94fr); }
}

@media (max-width: 700px) {
  .research-index-page .research-index-main { width: calc(100% - 32px); }
  .research-index-page .research-index-hero { gap: 25px; padding: 106px 0 42px; }
  .research-index-page .research-index-hero__statement { display: block; }
  .research-index-page .research-index-hero__statement > p { margin-bottom: 27px; }
  .research-index-page .research-index-hero h1 { max-width: 10.8ch; font-size: clamp(3.45rem, 15.4vw, 5.55rem); line-height: 0.84; }
  .research-index-page .research-index-hero__statement > span { display: block; max-width: 34ch; margin-top: 30px; padding: 0; font-size: 0.98rem; }
  .research-index-page .research-index-list { gap: 62px; padding: 46px 0 86px; }
  .research-index-page .research-index-entry { gap: 13px; }
  .research-index-page .research-index-entry__index span { font-size: 2.15rem; }
  .research-index-page .research-index-card { display: block; }
  .research-index-page .research-index-card figure,
  .research-index-page .research-index-entry--secondary .research-index-card figure { aspect-ratio: 4 / 3; }
  .research-index-page .research-index-card > div { padding: 22px 0 24px; }
  .research-index-page .research003-index-cover b { font-size: clamp(2.55rem, 12vw, 4.5rem); }
  .research-index-page .research-index-card h2,
  .research-index-page .research-index-entry--secondary .research-index-card h2 { max-width: 10.5ch; margin: 31px 0 19px; font-size: clamp(3rem, 14.2vw, 4.55rem); line-height: 0.84; }
  .research-index-page .research-index-card > div > p { max-width: 31ch; font-size: clamp(1.06rem, 4.8vw, 1.25rem); line-height: 1.28; }
  .research-index-page .research-index-card dl { margin: 36px 0 25px; padding-top: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .research-index-page .research-index-card figure img { transition: none; }
}