:root {
  --bg: #ffffff;
  --bg-alt: #ffffff;
  --text: #363636;
  --text-muted: #6b6f76;
  --heading: #1f2328;
  --link: #3273dc;
  --btn-bg: #363636;
  --btn-text: #ffffff;
  --btn-hover: #1f1f1f;
  --border: #e3e5e8;
  --code-bg: #f0f1f3;
  --media-bg: #e9ebee;
  --radius: 10px;
  --max: 1100px;
  --narrow: 820px;
}


*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Noto Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 16px;
}
.container.narrow { max-width: var(--narrow); }

/* ---------- Hero ---------- */
.hero {
  text-align: center;
  padding: 72px 0 32px;
}
.title {
  font-family: "Google Sans", "Noto Sans", sans-serif;
  font-size: clamp(2.2rem, 6vw, 3.4rem);
  font-weight: 700;
  color: var(--heading);
  margin: 0 0 8px;
  line-height: 1.15;
}
.subtitle {
  font-family: "Google Sans", "Noto Sans", sans-serif;
  font-size: clamp(1.1rem, 3vw, 1.6rem);
  font-weight: 400;
  color: var(--heading);
  margin: 0 auto 24px;
  max-width: 800px;
  line-height: 1.35;
}
.authors {
  font-size: 1.15rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 20px;
}
.authors sup, .affiliations sup { font-size: 0.7em; }
.affiliations {
  margin-top: 6px;
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 20px;
}

.links {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 999px;
  background: var(--btn-bg);
  color: var(--btn-text);
  font-size: 0.95rem;
  font-weight: 500;
  transition: background 0.15s;
}
.btn:hover { background: var(--btn-hover); text-decoration: none; }
.btn svg { width: 18px; height: 18px; }
.btn.is-soon { opacity: 0.55; cursor: default; }
.btn.is-soon:hover { background: var(--btn-bg); }
.soon {
  margin-left: 2px;
  padding: 1px 7px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.2);
  font-size: 0.72rem;
  font-weight: 500;
  white-space: nowrap;
}

/* Key features: one line of plain text separated by dots, so it doesn't read as clickable */
.features {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2px 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}
.features li { white-space: nowrap; }
.features li + li::before { content: "\00b7"; margin: 0 10px; }

/* ---------- Sections ---------- */
.section { padding: 48px 0; }
.section.alt { background: var(--bg-alt); }
.section.teaser { padding-top: 8px; }

.section-title {
  font-family: "Google Sans", "Noto Sans", sans-serif;
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--heading);
  text-align: center;
  margin: 0 0 24px;
}
.section-lead {
  text-align: center;
  color: var(--text-muted);
  margin: -12px 0 24px;
}
.abstract { text-align: justify; hyphens: auto; }

/* ---------- Media ---------- */
.media {
  display: block;
  width: 100%;
  border-radius: var(--radius);
  background: var(--media-bg);
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
.figure { margin: 0 auto; max-width: 820px; text-align: center; }
/* Full image, never cropped - suits diagrams and annotated renders */
.figure-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}
.figure.wide { max-width: 1000px; }
.figure.tall { max-width: 640px; } /* portrait figures: keep height reasonable */
.figure figcaption { margin-top: 12px; color: var(--text-muted); }
/* Overview: one combined image, full container width (same as the video row) */
.section.overview { padding-top: 16px; padding-bottom: 8px; }
.overview-fig { display: block; }
.overview-fig img { display: block; width: 100%; height: auto; }
.section.demos { padding-top: 8px; }
.caption {
  text-align: center;
  color: var(--text-muted);
  margin-top: 12px;
}

.grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.clip { margin: 0; }
.clip figcaption {
  text-align: center;
  margin-top: 8px;
  font-weight: 500;
  color: var(--heading);
}

@media (max-width: 800px) {
  .grid.three { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
/* Phones: keep figures/videos side by side (like Mobile ALOHA), just tighter */
@media (max-width: 560px) {
  .grid { gap: 10px; }
  .clip figcaption { font-size: 0.8rem; }
  .hero { padding-top: 48px; }
  .features { font-size: 0.82rem; }
  .features li + li::before { margin: 0 6px; }
  .section { padding: 36px 0; }
}

/* ---------- Team ---------- */
.team {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px 16px;
}
.member { margin: 0; text-align: center; width: 112px; font-size: 0.92rem; }
.member img {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 25%;
  background: var(--media-bg);
}
.member figcaption { margin-top: 8px; display: flex; flex-direction: column; }

/* ---------- Lab logo ---------- */
.lab-logo {
  display: block;
  height: 64px;
  width: auto;
  max-width: 100%;
  margin: 8px auto 0;
}

/* ---------- Early use cases ---------- */
.subsection-title {
  font-family: "Google Sans", "Noto Sans", sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--heading);
  text-align: center;
  margin: 40px 0 16px;
}
.orgs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px 12px;
}
.org { margin: 0; width: 112px; text-align: center; }
.org figcaption { margin-top: 6px; font-size: 0.85rem; color: var(--text-muted); }
.org-logo {
  display: block;
  width: 80px;
  height: 80px;
  margin: 0 auto;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: #fff;
  object-fit: cover;
}
/* Per-logo framing so each mark sits nicely inside its circle */
.org-vanderbilt { object-fit: contain; padding: 20px 17px 15px; }
.org-unc { object-fit: contain; padding: 14px; }

/* ---------- Hardware ---------- */
.resource-list {
  margin: 0 auto;
  padding-left: 1.2em;
  max-width: 420px;
  font-size: 1.05rem;
}
.resource-list li + li { margin-top: 8px; }


/* ---------- Papers ---------- */
.papers { margin: 0; padding-left: 1.6em; }
.papers li + li { margin-top: 16px; }
.paper-title { font-weight: 500; }
.paper-authors { color: var(--text); font-size: 0.95rem; }
.paper-venue { color: var(--text-muted); font-size: 0.9rem; }

/* ---------- BibTeX ---------- */
.bibtex { position: relative; }
.bibtex pre {
  margin: 0;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  overflow-x: auto;
  font-size: 0.88rem;
  line-height: 1.5;
}
.copy {
  position: absolute;
  top: 10px;
  right: 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  border-radius: 6px;
  padding: 4px 10px;
  font: inherit;
  font-size: 0.8rem;
  cursor: pointer;
}
.copy:hover { background: var(--bg-alt); }

/* ---------- Footer ---------- */
.footer {
  padding: 32px 0 48px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Phones: team and logos stay on one row. Kept at the end so it overrides the rules above. */
@media (max-width: 560px) {
  .team, .orgs { gap: 12px 6px; flex-wrap: nowrap; }
  .member, .org { width: auto; flex: 1 1 0; min-width: 0; font-size: 0.72rem; }
  .member img { width: 56px; height: 56px; }
  .org-logo { width: 48px; height: 48px; }
  .org-vanderbilt { padding: 12px 10px 9px; }
  .org-unc { padding: 8px; }
  .org figcaption { font-size: 0.68rem; }
}