/* Standalone stylesheet for the project page (independent of the homepage theme).
   One grid: an 880px column. One typeface: Noto Sans. One vertical rhythm (see the gap rules below). */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: #ffffff; color: #363636; font-family: "Noto Sans", -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; font-size: 17px; line-height: 1.6; font-weight: 400; hyphens: manual; }
a { color: #2b69cf; text-decoration: underline; text-decoration-color: rgba(43, 105, 207, .4); text-decoration-thickness: 1px; text-underline-offset: 3px; } /* 5.2:1 on white; underline so links are not colour-only */
a:hover { text-decoration-color: currentColor; }
a:focus-visible, summary:focus-visible, .table-scroll:focus-visible { outline: 2px solid #2b69cf; outline-offset: 3px; border-radius: 3px; } /* one focus ring for every control */
strong { font-weight: 700; }
main, .site-footer, .topbar { width: min(880px, 100% - 32px); margin: 0 auto; padding: 0; }

/* way back to the homepage */
.topbar { padding-top: 8px; }
.topbar a { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; font-size: .9rem; font-weight: 600; text-decoration: none; }
.topbar a:hover { text-decoration: underline; }

/* hero */
.paper-head { text-align: center; padding: 24px 0 0; }
.paper-head h1 { margin: 0 0 12px; font-size: 2.4rem; font-weight: 700; line-height: 1.1; color: #363636; text-wrap: balance; }
.paper-authors { margin: 0 0 8px; font-size: 1.3rem; line-height: 1.4; }
.au { white-space: nowrap; } /* a name (with its footnote mark) never breaks across lines */
.paper-authors sup, .paper-affil sup { font-size: .65em; line-height: 0; }
.paper-affil { margin: 0 0 20px; font-size: 1rem; line-height: 1.4; color: #4a4a4a; }

.buttons { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin: 0; padding: 0; list-style: none; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 44px; padding: 0 20px; border-radius: 9999px; background: #363636; color: #ffffff; font-size: 15px; font-weight: 600; line-height: 1; text-decoration: none; border: 0; white-space: nowrap; }
a.btn:hover { background: #1f1f1f; text-decoration: none; }
.btn:focus-visible { border-radius: 9999px; }
.btn svg { width: 16px; height: 16px; flex: none; fill: currentColor; }
.btn small { font-size: 12px; font-weight: 400; margin: 0; }
.btn-off { background: #ececec; color: #5c5c5c; box-shadow: inset 0 0 0 1px #d4d4d4; cursor: not-allowed; } /* looks disabled, still 5.7:1 */

/* sections: 56px above the heading, 28px below it */
section { padding: 56px 0 0; margin-top: 56px; border-top: 1px solid #e6e6e6; }
.paper-head + section { margin-top: 48px; }
section h2 { margin: 0 0 28px; text-align: center; font-size: 2rem; font-weight: 600; line-height: 1.2; color: #363636; }

/* every block sits on the same column edge */
section p, section figure, section .tcaption, section pre { margin: 0; max-width: none; text-align: left; }
.abstract p { font-size: 15px; line-height: 1.55; }
/* running prose: ~70 characters per line, centred under the centred headings; figures, tables and captions keep the full 880px grid */
section > p:not(.tcaption), .abl-list { max-width: 70ch; margin-inline: auto; }
section.abstract > p { max-width: 64ch; } /* 15px type: ~72 characters per line */

/* vertical rhythm */
section > p + p { margin-top: 16px; }
:is(section, .more) > :is(p, .table-scroll, table, .subtables, figure) + :is(.tcaption, figure) { margin-top: 24px; }
:is(section, .more) > figure + figure { margin-top: 40px; }
:is(section, .more) > .tcaption + :is(.table-scroll, table, .subtables) { margin-top: 6px; }
:is(section, .more) > :is(.table-scroll, table, .subtables, figure) + p { margin-top: 32px; }
figure figcaption { margin-top: 10px; }

/* bulleted ablation list */
.abl-list { margin: 0 auto; padding: 0 0 0 1.4em; text-align: left; }
.abl-list li { margin: 0; }
.abl-list li + li { margin-top: 16px; }

/* collapsible blocks: native <details>, quiet text-button summary, no box */
details.more { margin: 24px 0; }
section > :is(.abl-list, figure, table, .table-scroll) + details.more { margin-top: 24px; }
details.more > summary { display: flex; width: fit-content; margin-inline: auto; align-items: center; gap: 8px; cursor: pointer; font-size: 15px; font-weight: 600; line-height: 1.4; color: #363636; list-style: none; padding: 2px 0; }
details.more > summary::-webkit-details-marker { display: none; }
details.more > summary::before { content: "\25B8"; display: inline-block; font-size: 1em; transition: transform .15s; }
details.more[open] > summary::before { transform: rotate(90deg); }
details.more > summary:hover { color: #000; }
details.more[open] > summary { margin-bottom: 24px; }
details.more > :last-child { margin-bottom: 0; }

figure img { display: block; width: 100%; height: auto; border: 0; }
.fig-scroll { overflow-x: auto; max-width: 100%; -webkit-overflow-scrolling: touch; }

/* captions: figures below, tables above, one style */
figcaption, .tcaption { font-size: 13.5px; line-height: 1.45; color: #6b6b6b; text-align: left; text-wrap: pretty; }
figcaption b, .tcaption b { font-weight: 700; }
#t4-cap { max-width: 540px; }
#t5-cap { max-width: 640px; }

.table-scroll { overflow-x: auto; max-width: 100%; margin: 0; -webkit-overflow-scrolling: touch; }

/* ICLR / booktabs tables */
table.iclr { border-collapse: collapse; font-size: 14px; line-height: 1.35; color: #363636; background: #fff; border-top: 2px solid #363636; border-bottom: 2px solid #363636; font-variant-numeric: tabular-nums; }
table.iclr th, table.iclr td { padding: 3px 6px; text-align: center; vertical-align: baseline; white-space: nowrap; font-weight: 400; background: #fff; border: 0; }
table.iclr thead th { font-weight: 700; }
table.iclr b { font-weight: 700; }
table.iclr .r { text-align: right; }
table.iclr thead tr > :first-child, table.iclr tbody th[scope="row"] { text-align: left; white-space: normal; }
table.iclr tbody th[scope="row"] { min-width: 11rem; }
table.iclr tbody > tr:first-child > * { border-top: 1px solid #363636; }
table.iclr th.cm { border-bottom: 1px solid #363636; }
table.iclr tr.grp th { text-align: left; font-style: italic; font-weight: 400; padding-top: 6px; }
table.iclr tr.ours > * { background: #efefef; }
table.iclr .ind { padding-left: 1.2em; }
table.iclr.t1, table.iclr.t2, table.iclr.t6 { width: 100%; font-size: 13.5px; }
table.iclr.t1 tr:not(.grp) > :last-child { border-left: 1px solid #363636; }
table.iclr.t4 { width: 540px; max-width: 100%; }
table.iclr.t5 { width: 640px; }
table.iclr.t1 tbody th[scope="row"] { min-width: 17rem; }
.table-scroll table.iclr.t1 { min-width: 760px; }
.table-scroll table.iclr.t2, .table-scroll table.iclr.t6 { min-width: 700px; }
.table-scroll table.iclr.t5 { min-width: 560px; }
.subtables { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; align-items: start; }
.subtables table.iclr { width: 100%; }

/* math marks */
sub, sup { line-height: 0; }
i + sup { margin-left: .08em; }
.ss { display: inline-flex; flex-direction: column; vertical-align: middle; margin: -.55em 0 -.55em .08em; line-height: 1; }
html .ss > sup, html .ss > sub { position: static; vertical-align: baseline; font-size: .72em; line-height: 1.05; margin: 0; }
.up { font-style: normal; }

.bib-pre { width: 100%; padding: 16px 20px; background: #f5f5f5; border-radius: 6px; font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace; font-size: .9rem; line-height: 1.5; overflow-x: auto; user-select: all; color: #363636; }

.site-footer { margin-top: 56px; padding: 16px 0 40px; text-align: center; font-size: .85rem; color: #626262; }
.site-footer p { margin: 0; }
.site-footer a { color: #626262; }

@media print { .btn-off, .topbar { display: none; } }
@media (max-width: 700px) {
  .subtables { grid-template-columns: minmax(0, 1fr); }
  #t4-cap { max-width: 100%; }
  table.iclr.t4 { width: 100%; }
}
@media (max-width: 600px) {
  .paper-head { padding-top: 12px; }
  .paper-head h1 { font-size: 1.7rem; }
  .paper-authors { font-size: 1.1rem; }
  .paper-affil { font-size: .9rem; }
  section h2 { font-size: 1.6rem; }
  .fig-scroll img { min-width: 720px; }
  .table-scroll table.iclr.t1, .table-scroll table.iclr.t2, .table-scroll table.iclr.t5, .table-scroll table.iclr.t6 { min-width: 0; width: auto; }
  .table-scroll table.iclr thead tr > :first-child, .table-scroll table.iclr tbody th[scope="row"] { position: sticky; left: 0; z-index: 1; background: #fff; }
  .table-scroll table.iclr tr.ours th[scope="row"] { background: #efefef; }
  .table-scroll table.iclr tbody th[scope="row"], .table-scroll table.iclr.t1 tbody th[scope="row"] { min-width: 9.5rem; }
  .table-scroll tr.grp th > i { position: sticky; left: 4px; display: inline-block; }
}