/* ============================================================
   Trust3R · ICML 2026 — project page styles
   Palette: deep teal (trust / probability) + warm coral (failure / risk)
   ============================================================ */

:root {
  --trust-teal:        #0e7c86;
  --trust-teal-deep:   #0a5a62;
  --trust-coral:       #ef6c5b;
  --trust-coral-deep:  #d44a3a;
  --trust-ink:         #1c2230;
  --trust-muted:       #6b7280;
  --trust-line:        #e5e7eb;
  --trust-bg-soft:     #f7f8fa;
  --trust-bg-card:     #ffffff;
  --trust-shadow:      0 1px 2px rgba(28, 34, 48, 0.04),
                       0 4px 16px rgba(28, 34, 48, 0.06);
}

/* ---------- Base ---------- */
html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
  font-feature-settings: 'cv11', 'ss01';
  color: var(--trust-ink);
  background: #fff;
  line-height: 1.55;
}

/* ---------- Entrance / scroll reveal ---------- */
@keyframes trust-fade-up {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Stagger hero pieces in on first paint */
.is-trust .publication-title    { animation: trust-fade-up 0.7s ease 0.05s both; }
.is-trust .publication-authors  { animation: trust-fade-up 0.7s ease 0.18s both; }
.is-trust .venue-line           { animation: trust-fade-up 0.7s ease 0.28s both; }
.is-trust .publication-links    { animation: trust-fade-up 0.7s ease 0.38s both; }

/* Scroll-triggered reveal for sections */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .is-trust .publication-title,
  .is-trust .publication-authors,
  .is-trust .venue-line,
  .is-trust .publication-links,
  .reveal {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

/* Moderate Bulma size overrides */
.title.is-1.publication-title { font-size: 2.35rem; line-height: 1.18; }
.title.is-3.section-title    { font-size: 1.55rem; }
.is-size-4 { font-size: 1.1rem  !important; }
.is-size-5 { font-size: 1.05rem !important; }
.is-size-6 { font-size: 0.9rem  !important; }
.content p { font-size: 0.98rem; }
.subtitle  { font-size: 0.92rem !important; }
.button    { font-size: 0.9rem; }

.mono, code, pre {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

.muted { color: var(--trust-muted); }

/* ---------- Hero ---------- */
.is-trust {
  position: relative;
  background:
    radial-gradient(1200px 560px at 8% -20%, rgba(14, 124, 134, 0.28), transparent 60%),
    radial-gradient(1000px 520px at 100% -10%, rgba(239, 108, 91, 0.22), transparent 60%),
    radial-gradient(900px 420px at 50% 110%, rgba(14, 124, 134, 0.10), transparent 65%),
    linear-gradient(180deg, #fbfdfd 0%, #f3f6f8 100%);
  padding-bottom: 1.75rem;
  overflow: hidden;
}
/* Soft gradient hairline at the bottom edge for a clean transition */
.is-trust::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg,
              transparent 0%,
              rgba(14, 124, 134, 0.55) 25%,
              rgba(239, 108, 91, 0.55) 75%,
              transparent 100%);
  opacity: 0.7;
  pointer-events: none;
}

.is-trust .hero-body { padding: 1.75rem 1.5rem 0.9rem; position: relative; z-index: 1; }

.venue-line {
  margin-top: 0.7rem;
  margin-bottom: 0.2rem;
}

.venue-badge {
  display: inline-block;
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--trust-teal-deep);
  background: none;
  border: none;
  padding: 0;
}

.publication-title {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  letter-spacing: -0.015em;
  line-height: 1.18;
  margin-bottom: 0.7rem !important;
  color: var(--trust-ink);
}

.grad-accent {
  background: linear-gradient(135deg, var(--trust-teal) 0%, var(--trust-coral) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 800;
}

.title-qmark {
  display: inline-block;
  font-size: 0.78em;
  font-weight: 800;
  line-height: 1;
  vertical-align: super;
  margin-left: 0.06em;
  background: linear-gradient(135deg, var(--trust-coral) 0%, var(--trust-teal) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  transform-origin: 50% 80%;
  animation:
    qmark-float 2.8s ease-in-out infinite,
    qmark-tilt  4.4s ease-in-out infinite;
}

@keyframes qmark-float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-5px); }
}

@keyframes qmark-tilt {
  0%, 100% { rotate: 0deg; }
  25%      { rotate: -10deg; }
  60%      { rotate: 8deg; }
}

@media (prefers-reduced-motion: reduce) {
  .title-qmark { animation: none !important; }
}

.publication-authors {
  margin: 0.3em 0;
  font-weight: 500;
}
.publication-authors.affil {
  font-weight: 400;
  margin-top: 0.15em;
  color: var(--trust-muted);
}
.publication-authors a {
  color: var(--trust-ink);
  border-bottom: 1px dashed transparent;
  transition: border-color 0.15s ease, color 0.15s ease;
}
.publication-authors a:hover {
  color: var(--trust-teal);
  border-bottom-color: var(--trust-teal);
}

.publication-links { margin-top: 0.9rem; }

.link-block { display: inline-block; margin: 0.3em; }

.button.is-trust-dark {
  background: var(--trust-ink);
  color: #fff;
  border: none;
  border-radius: 14px;
  padding: 0.55em 1.3em;
  font-weight: 500;
  letter-spacing: 0.01em;
  box-shadow: 0 1px 2px rgba(28, 34, 48, 0.10),
              0 4px 14px rgba(28, 34, 48, 0.10);
  transition: transform 0.12s ease, background 0.15s ease, box-shadow 0.15s ease;
}
.button.is-trust-dark:hover {
  background: var(--trust-teal-deep);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(14, 124, 134, 0.18),
              0 8px 22px rgba(14, 124, 134, 0.20);
}

/* ---------- Unified body prose (Overview / Method / Qualitative caption) ---------- */
.overview-body p,
.method-body p,
.qual-caption p {
  font-size: 1.0rem;
  line-height: 1.7;
  color: var(--trust-ink);
}
.overview-body b,
.method-body b,
.qual-caption b {
  color: var(--trust-teal-deep);
  font-weight: 700;
}

/* ---------- Quantitative tables section ---------- */
.tables-stack {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-top: 1.25rem;
}

.table-block {
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
  display: block;
}
.table-cap {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--trust-muted);
  margin: 0 0 0.4rem;
  text-align: left;
}
.table-cap.table-cap-below { margin: 0.55rem 0 0; }
.table-cap b {
  color: var(--trust-ink);
  font-weight: 700;
}
.table-cap i { font-style: italic; }
.table-block img {
  display: block;
  width: 100%;
  height: auto;
}

.tables-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
  align-items: start;
}
.tables-row .table-block { margin: 0; }
@media (max-width: 720px) {
  .tables-row { grid-template-columns: 1fr; }
}

/* ---------- Qualitative section ---------- */
.qual-figure {
  max-width: 1080px;
  margin: 0.5rem auto 0.25rem;
}
.qual-figure img { width: 100%; height: auto; }
.qual-caption p { margin-top: 0.5rem; }

/* ---------- Overview section (VGGT-style minimalist) ---------- */
.section-overview { padding-top: 1.5rem; padding-bottom: 0.5rem; }
.section-overview .section-title { margin-bottom: 0.9rem !important; }

.overview-body p { margin-bottom: 0.35rem !important; }
.overview-body p:last-child { margin-bottom: 0 !important; }
.caption {
  margin-top: 1.25rem;
  color: var(--trust-ink);
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}
.caption-small {
  font-size: 0.82rem;
  color: var(--trust-muted);
  margin-top: 0.4rem;
  text-align: center;
}

/* ---------- Highlight number cards ---------- */
.section-highlights { padding-top: 0.75rem; padding-bottom: 1.25rem; }

.hl-card {
  background: var(--trust-bg-card);
  border: 1px solid var(--trust-line);
  border-radius: 18px;
  padding: 1.6rem 1.5rem 1.4rem;
  text-align: center;
  box-shadow: var(--trust-shadow);
  height: 100%;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.hl-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 2px 4px rgba(28, 34, 48, 0.06),
              0 12px 28px rgba(28, 34, 48, 0.10);
}
.hl-number {
  font-family: 'Inter', sans-serif;
  font-size: 2.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--trust-teal) 0%, var(--trust-coral) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}
.hl-unit {
  font-size: 1.4rem;
  margin-left: 0.1em;
  -webkit-text-fill-color: var(--trust-coral);
}
.hl-label {
  margin-top: 0.6rem;
  font-weight: 600;
  color: var(--trust-ink);
}
.hl-sub {
  margin-top: 0.3rem;
  font-size: 0.85rem;
  color: var(--trust-muted);
}

/* ---------- Sections ---------- */
.section { padding: 1.75rem 1.5rem; }
.section-light { background: var(--trust-bg-soft); }

.section-title {
  font-weight: 700;
  letter-spacing: -0.01em;
  position: relative;
  display: inline-block;
  margin-bottom: 1rem !important;
}
.section-title::after {
  content: "";
  display: block;
  width: 56px;
  height: 3px;
  margin: 0.45rem auto 0;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--trust-teal), var(--trust-coral));
}

.hero.is-light.is-small .hero-body { padding: 1.75rem 1.5rem; }

/* ---------- Figures ---------- */
img {
  border-radius: 10px;
}

/* Placeholder boxes: dashed gray frame + caption hint */
img[src*="PLACEHOLDER"] {
  background: var(--trust-bg-soft);
  border: 2px dashed #c9d0d8;
  min-height: 220px;
  display: block;
  width: 100%;
  color: var(--trust-muted);
  text-align: center;
  font-style: italic;
  padding: 1rem;
}

/* ---------- Results carousel (placeholder grid) ---------- */
.results-carousel {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin-top: 1.2rem;
}
.results-carousel .item video {
  width: 100%;
  height: auto;
  border-radius: 10px;
  background: #e8eaef;
  display: block;
}
video[src*="PLACEHOLDER"],
.item video[src=""] {
  min-height: 160px;
}

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; }
.trust-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: #fff;
  border: 1px solid var(--trust-line);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--trust-shadow);
  font-size: 0.85rem;
}
.trust-table th, .trust-table td {
  padding: 0.65rem 0.95rem;
  border-bottom: 1px solid var(--trust-line);
}
.trust-table thead th {
  background: var(--trust-bg-soft);
  color: var(--trust-ink);
  font-weight: 600;
  text-align: left;
}
.trust-table .num { text-align: right; font-variant-numeric: tabular-nums; }
.trust-table tbody tr:last-child td { border-bottom: none; }
.trust-table tr.highlight-row td {
  background: linear-gradient(90deg,
      rgba(14, 124, 134, 0.07) 0%,
      rgba(239, 108, 91, 0.05) 100%);
  color: var(--trust-ink);
}
.trust-table.is-narrow { max-width: 520px; margin: 0 auto; }

/* ---------- Video embed ---------- */
.publication-video {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 56.25%;
  overflow: hidden;
  border-radius: 14px;
  box-shadow: var(--trust-shadow);
  background: var(--trust-bg-soft);
}
.publication-video iframe {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  border: 0;
}

/* ---------- BibTeX ---------- */
pre.bibtex {
  background: #0f1722;
  color: #e6ecf3;
  border-radius: 14px;
  padding: 1rem 1.25rem;
  font-size: 0.78rem;
  line-height: 1.5;
  overflow-x: auto;
  box-shadow: var(--trust-shadow);
}
pre.bibtex code { background: transparent; color: inherit; padding: 0; }

/* ---------- Footer ---------- */
.footer {
  background: #ffffff;
  border-top: 1px solid var(--trust-line);
  padding: 1.25rem 1.5rem;
  margin-top: 0.5rem;
}
.icon-link {
  margin: 0 0.5em;
  color: var(--trust-muted);
  font-size: 1rem;
  transition: color 0.15s ease;
}
.icon-link:hover { color: var(--trust-teal); }

/* ---------- Mobile ---------- */
@media (max-width: 768px) {
  .title.is-1.publication-title { font-size: 1.45rem; }
  .title.is-3.section-title    { font-size: 1.2rem; }
  .is-trust .hero-body { padding: 1.5rem 1rem 1rem; }
  .section { padding: 1.25rem 1rem; }
}