/* BOBALAB home. One type scale, taken from the measured system:
   48 hero, 36 section, 28 direction question, 18 list title, 16 lede and body, 15 small, 13 meta. */
:root {
  --c-advice: #4F6FC4;
  --c-ai: #C77493;
  --c-learning: #5E8C55;
  --c-platform: #C0773A;
}
.lede { font: 400 16px/24px var(--body); color: var(--ink); max-width: 52ch; }

/* research rows: the question on the left, the papers on the right */
.dirs { border-top: 1px solid var(--rail); }
.dir { padding-block: 48px; border-bottom: 1px solid var(--rail); row-gap: 24px; align-items: start; }
.dir:last-child { border-bottom: 0; }
.dir .l { grid-column: 1 / span 6; display: grid; gap: 12px; justify-items: start; padding-left: var(--inset); }
.dir .l .eyebrow { margin: 0; }
.dir .l .h3 { max-width: 22ch; text-wrap: balance; }
.dir .l .desc { max-width: 48ch; }
.dir .r { grid-column: 8 / span 5; }
.more { font: 400 15px/22px var(--body); margin-top: 4px; display: inline-flex; gap: 6px; transition: gap .15s var(--ease); }
.more:hover { gap: 10px; }
.works { background: var(--white); border-radius: var(--r-card); box-shadow: 0 0 0 .5px var(--ring), 0 1px 2px rgba(0, 0, 0, .03); overflow: hidden; }
.works-head { display: flex; align-items: center; gap: 10px; padding: 14px 18px; font: 400 13px/18px var(--body); color: var(--muted); border-bottom: 1px solid var(--stone); }
.dir-orb { width: 24px; height: 24px; border-radius: 50%; display: block; }
.works a { display: grid; gap: 2px; padding: 14px 18px; border-bottom: 1px solid var(--stone); transition: background-color .15s var(--ease); }
.works a:last-child { border-bottom: 0; }
.works a:hover { background: var(--cream); }
.works b { font: 400 15px/22px var(--body); }
.works span { font: 400 13px/18px var(--body); color: var(--muted); }

/* latest: new papers beside news */
.latest { row-gap: 40px; }
.latest .col { grid-column: span 6; padding-inline: var(--inset); min-width: 0; }
.col-title { font: 400 16px/24px var(--body); letter-spacing: .16px; color: var(--muted); padding-bottom: 12px; border-bottom: 1px solid var(--stone); }
.rows li a { display: grid; gap: 2px; padding: 16px 0; border-bottom: 1px solid var(--stone); }
.rows li a:hover .t { text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.rows .t { font: 400 18px/26px var(--body); }
.rows .m { font: 400 15px/22px var(--body); color: var(--muted); }
.news-rows a { grid-template-columns: 72px 1fr; gap: 16px; align-items: baseline; }
.news-rows .d { font: 400 13px/18px var(--body); color: var(--muted); font-variant-numeric: tabular-nums; }
.news-rows .t { font-size: 16px; line-height: 24px; }
.quote .marks .tile { width: 40px; height: 40px; border-radius: var(--r-card-sm); }

/* people numbers, set at the section size so they sit in the scale */
.numbers { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--rail); }
.numbers div { padding: 28px var(--text-x) 40px; border-left: 1px solid var(--rail); display: grid; gap: 4px; }
.numbers div:first-child { border-left: 0; }
.numbers b { font: 400 36px/42px var(--display); letter-spacing: -1.08px; }
.numbers span { font: 400 15px/22px var(--body); color: var(--muted); }

/* join list */
.openings { border-top: 1px solid var(--stone); }
.openings a { grid-template-columns: 1fr auto 20px; align-items: baseline; gap: 16px; }
.openings .arr { color: var(--muted); transition: transform .15s var(--ease); }
.openings a:hover .arr { transform: translateX(4px); color: var(--ink); }
#join .head { align-items: start; }
#join .head .r { padding-top: 36px; }

/* the open-paper control in the hero carousel is a link */
a.play { text-decoration: none; }
.slot.empty { opacity: 0; pointer-events: none; }

@media (max-width: 900px) {
  .dir .l, .dir .r { grid-column: 1 / -1; }
  .dir .l { padding-left: 0; }
  .latest .col { grid-column: 1 / -1; padding-inline: 0; }
  .numbers { grid-template-columns: 1fr 1fr; } .numbers div:nth-child(3) { border-left: 0; }
  #join .head .r { padding-top: 8px; }
}
@media (max-width: 640px) {
  .dir { padding-block: 32px; }
  .h3 { font-size: 24px; }
  .rows .t { font-size: 17px; line-height: 25px; }
  .openings a { grid-template-columns: 1fr 20px; } .openings .m { display: none; }
  .numbers div { padding: 20px 16px 28px; }
}
.footer .cols { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 640px) { .footer .cols { grid-template-columns: 1fr 1fr; } }
.pill { white-space: nowrap; flex: none; }
.footer li { font: 400 14px/26px var(--body); }

/* ---------- signal ---------- */
.venues-wrap { padding-top: 24px; }
.venues { display: grid; grid-template-columns: repeat(6, 1fr); row-gap: 4px; padding-block: 8px 72px; }
.venue { height: 64px; display: grid; place-items: center; text-align: center; color: var(--faint); font: 500 17px/1.2 var(--display); letter-spacing: -.02em; }
.venue.serif { font: 400 18px/1.2 Georgia, "Times New Roman", serif; letter-spacing: 0; }

.awards { border-top: 1px solid var(--rail); }
.awards li { display: grid; grid-template-columns: 5fr 5fr 1.2fr; gap: 24px; align-items: baseline; padding: 18px var(--text-x); border-bottom: 1px solid var(--rail); }
.awards .a { font: 400 18px/26px var(--body); }
.awards .p { font: 400 15px/22px var(--body); color: var(--muted); }
.awards .y { font: 400 13px/18px var(--body); color: var(--faint); text-align: right; font-variant-numeric: tabular-nums; }
.support, .alumni-go { display: grid; grid-template-columns: 1fr 3fr; gap: 8px 24px; padding-block: 28px 40px; }

.offer { row-gap: 32px; align-items: start; }
.offer .l { grid-column: 1 / span 6; padding-left: var(--inset); }
.offer .r { grid-column: 8 / span 5; display: grid; gap: 16px; }
.offers { border-top: 1px solid var(--stone); }
.offers li > div { display: grid; gap: 2px; padding: 16px 0; border-bottom: 1px solid var(--stone); }
.steps .row b { font: 400 15px/22px var(--body); }
.contact { color: var(--muted); padding-left: 2px; }
.mono-ish { color: var(--ink); user-select: all; }

.pi-home { row-gap: 32px; align-items: end; }
.pi-home .l { grid-column: 1 / span 7; display: grid; gap: 14px; justify-items: start; }
.pi-home .l .lede { max-width: 56ch; }
.pi-home .l .btns { margin-top: 8px; }
.pi-home .r { grid-column: 9 / span 4; }
.pi-img { display: block; width: 100%; height: auto; aspect-ratio: 4 / 5; object-fit: cover; border-radius: var(--r-card); background: var(--cream); }
#people .numbers { margin-top: 40px; }
.legal a { color: var(--muted); }
.legal a:hover { color: var(--ink); }

@media (max-width: 900px) {
  .venues { grid-template-columns: repeat(3, 1fr); }
  .awards li { grid-template-columns: 1fr auto; } .awards .p { grid-column: 1; grid-row: 2; }
  .offer .l, .offer .r, .pi-home .l { grid-column: 1 / -1; padding-left: 0; }
  .pi-home .r { grid-column: 1 / span 6; }
  .support, .alumni-go { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .venues { grid-template-columns: 1fr 1fr; padding-bottom: 48px; }
  .awards li { padding-inline: 16px; }
}
.works .row { display: grid; gap: 2px; padding: 14px 18px; border-bottom: 1px solid var(--stone); }
.works .row:last-child { border-bottom: 0; }
.works .row span { font: 400 13px/18px var(--body); color: var(--muted); }
.scale { font: 400 18px/28px var(--body); max-width: 62ch; padding-block: 40px 8px; }

/* ---------- pearl field ---------- */
.pearl-sheet { position: relative; padding: 24px 24px 20px; }
.pearl-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; }
.pearl-title { font: 400 16px/24px var(--body); letter-spacing: .16px; color: var(--ink); }
.legend { display: flex; flex-wrap: wrap; gap: 4px; }
.legend .pill { display: inline-flex; align-items: center; gap: 8px; height: 36px; padding: 0 14px; font-size: 13px; }
.legend .pill i { width: 7px; height: 7px; border-radius: 50%; display: block; }
.pearls { position: relative; margin-top: 8px; }
.pearl { position: absolute; border-radius: 50%; overflow: hidden; isolation: isolate; display: block; cursor: pointer;
  box-shadow: 0 10px 24px -14px rgba(0, 0, 0, .35); transition: opacity .3s var(--ease), transform .3s var(--ease), filter .3s var(--ease);
  animation: drift 9s ease-in-out infinite alternate; }
.pearl img, .pearl .flat { width: 100%; height: 100%; display: block; border-radius: 50%; }
.pearl .flat { background: radial-gradient(circle at 35% 30%, #fff8, transparent 60%), var(--stone); }
.pearl:hover, .pearl:focus-visible { transform: scale(1.08); z-index: 2; animation-play-state: paused; }
.pearl.dim { opacity: .16; filter: saturate(.2); }
@keyframes drift { from { translate: 0 -3px; } to { translate: 0 3px; } }
.pearl-card { position: absolute; z-index: 5; width: 300px; max-width: calc(100% - 24px); padding: 12px 14px; border-radius: var(--r-card); background: var(--white);
  box-shadow: var(--shadow-btn), 0 12px 30px rgba(0, 0, 0, .1); display: grid; gap: 2px; pointer-events: none; }
.pearl-card .dir { font: 400 12px/16px var(--body); color: var(--muted); }
.pearl-card b { font: 400 15px/21px var(--body); }
.pearl-card .m { font: 400 13px/18px var(--body); color: var(--muted); }
.pearl-key { font: 400 13px/18px var(--body); color: var(--muted); padding-top: 8px; }

/* ---------- research figures ---------- */
.figs { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gutter); }
.fig { display: grid; gap: 14px; align-content: start; }
.art-box { position: relative; display: grid; place-items: center; aspect-ratio: 4 / 3; border-radius: var(--r-card); background: var(--cream); box-shadow: inset 0 0 0 .5px var(--ring); overflow: hidden; transition: background-color .25s var(--ease); }
.fig:hover .art-box { background: var(--stone); }
.art-box svg { width: 78%; height: auto; }
.art-box .dir-orb.big { position: absolute; right: 14px; top: 14px; width: 34px; height: 34px; }
.art-box .grain { position: absolute; right: 14px; top: 14px; left: auto; width: 34px; height: 34px; inset: 14px 14px auto auto; border-radius: 50%; }
.fig .cap { display: grid; gap: 4px; padding-inline: 4px; }
.fig .cap .t { font: 400 18px/26px var(--body); }
.fig .cap .d { font: 400 15px/22px var(--body); color: var(--muted); }

/* ---------- featured ---------- */
.featured { align-items: center; row-gap: 32px; }
.featured .stage-card { grid-column: 1 / span 6; aspect-ratio: 4 / 3; width: 100%; border-radius: var(--r-sheet); background-color: var(--cream); display: grid; place-items: center; box-shadow: inset 0 0 0 .5px var(--ring); overflow: hidden; }
.featured .stage-card .cover { width: 42%; }
.featured .copy { grid-column: 8 / span 5; display: grid; gap: 14px; justify-items: start; }
.featured .copy .btns { margin-top: 8px; }

/* ---------- partner offers under the diagram ---------- */
.offer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding-top: 32px; }
.offer-grid div { display: grid; gap: 4px; border-top: 1px solid var(--stone); padding-top: 14px; }
.offer-grid b { font: 400 16px/24px var(--body); }
.offer-grid span { font: 400 14px/21px var(--body); color: var(--muted); }
.connect .top h2 { font-size: clamp(32px, 4vw, 48px); line-height: 1.05; max-width: 16ch; }
.connect .bottom { min-height: 440px; }

@media (max-width: 1000px) { .figs { grid-template-columns: 1fr 1fr; } .offer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 900px) { .featured .stage-card, .featured .copy { grid-column: 1 / -1; } }
@media (max-width: 640px) {
  .pearl-sheet { padding: 16px 12px; } .legend { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; width: 100%; }
  .figs, .offer-grid { grid-template-columns: 1fr; }
  .featured .stage-card .cover { width: 52%; }
}
@media (prefers-reduced-motion: reduce) { .pearl { animation: none; } }
.pearl-card[hidden] { display: none; }