/* ---------------------------------------------------------------------------
   Bundled Contact Gradients — project page styles
   Built on the Nerfies project-page template.
   --------------------------------------------------------------------------- */

:root {
  --bcg-blue: #2f6fb5;   /* bundled gradient (paper figures) */
  --bcg-red: #c0453c;    /* per-rollout gradients (paper figures) */
  --bcg-ink: #363636;
  --bcg-muted: #7a8290;
  --bcg-line: #d5d9e0;
}

body {
  font-family: 'Noto Sans', sans-serif;
}

.footer .icon-link {
  font-size: 25px;
  color: #000;
}

.link-block a {
  margin-top: 5px;
  margin-bottom: 5px;
}

.bcg {
  font-variant: small-caps;
  font-weight: 600;
  color: var(--bcg-blue);
}


/* --- Video hero -----------------------------------------------------------
   Adapted from the ViBe project page (lok-i.github.io/vibe-control): a
   full-bleed looping video behind the title, a scrim to keep the text legible,
   and the title block floated on top.  The video is the film's hardware
   footage, cut by tools/build_site_media.py.
   --------------------------------------------------------------------------- */

.project-hero {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  background: #171819;
}

.project-hero-media,
.project-hero-scrim {
  position: absolute;
  inset: 0;
}

.project-hero-media {
  z-index: 0;
  background: radial-gradient(circle, #25282c 0%, #111315 68%, #090a0b 100%);
}

.project-hero-video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}

.project-hero-scrim {
  z-index: 1;
  background:
    linear-gradient(rgba(5, 8, 12, 0.42) 0%, rgba(5, 8, 12, 0.52) 54%, rgba(5, 8, 12, 0.68) 100%),
    linear-gradient(90deg, rgba(5, 8, 12, 0.20), transparent 32%, transparent 68%, rgba(5, 8, 12, 0.20));
}

.project-hero .hero-body {
  position: relative;
  z-index: 2;
  display: flex;
  width: 100%;
  align-items: center;
  padding: 4rem 1.5rem;
}

.project-hero .publication-title {
  color: #fff;
  font-size: clamp(2.15rem, 5vw, 4rem);
  line-height: 1.08;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.72);
}

.project-hero .publication-subtitle {
  color: rgba(255, 255, 255, 0.92);
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.8);
  margin-top: 0.35rem !important;
}

.project-hero .publication-authors,
.project-hero .publication-affiliations,
.project-hero .publication-venue {
  color: rgba(255, 255, 255, 0.92);
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.9);
}

.project-hero .publication-links .button {
  border: 1px solid rgba(255, 255, 255, 0.24);
  background: rgba(16, 18, 20, 0.78);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.22);
  color: #fff;
  backdrop-filter: blur(8px);
}

.project-hero .publication-links a.button:not(.is-disabled):hover {
  border-color: rgba(255, 255, 255, 0.52);
  background: rgba(6, 7, 8, 0.9);
}

/* Phones play the same loop, from a smaller encode picked in index.html.  The
   poster sits behind it so there is an image on screen immediately, and if
   autoplay is refused (iOS low-power mode) it is what stays visible. */
@media screen and (max-width: 768px) {
  .project-hero { min-height: 82svh; }
  .project-hero-media {
    background: url("../images/hero_poster.jpg") center center / cover no-repeat #111315;
  }
}


/* --- Title block ----------------------------------------------------------- */

.publication-title {
  font-family: 'Google Sans', sans-serif;
}

.publication-subtitle {
  font-family: 'Google Sans', sans-serif;
  color: #4a4a4a;
  margin-top: -0.75rem !important;
  margin-bottom: 1.5rem !important;
  font-weight: 400;
}

.publication-authors {
  font-family: 'Google Sans', sans-serif;
}

.publication-authors a {
  color: hsl(204, 86%, 53%) !important;
}

.publication-authors a:hover {
  text-decoration: underline;
}

.author-block {
  display: inline-block;
}

/* The author list is split into hand-balanced rows in index.html rather than
   left to wrap on its own, but the rows should still read as one block, so
   keep them tighter than the default line box. */
.author-row {
  line-height: 1.35;
}

/* Sits under the named author line. */
.publication-affiliations {
  font-family: 'Google Sans', sans-serif;
  margin-top: 0.35rem;
}

.affiliation-block {
  display: inline-block;
}

.affiliation-block + .affiliation-block {
  margin-left: 0.9rem;
}

/* Institution logos ---------------------------------------------------------- */

.publication-logos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.9rem 2rem;
  margin: 1.1rem auto 0;
  width: fit-content;
}

/* tools/build_logos.py trims each file tight to its ink, so one shared height
   is enough to put all four on the same optical height. */
.publication-logos img {
  display: block;
  width: auto;
  height: 38px;
}

/* ETH is a single-line wordmark where the others are stacked lockups or a mark,
   so at a shared height it reads heavier than the rest; nudge it down. */
.logo-eth {
  height: 33px;
}

/* The logos are white ink on transparency, matching the hero's white text, so
   they get the same shadow that keeps that text legible over a bright frame. */
.project-hero .publication-logos img {
  filter: drop-shadow(0 1px 8px rgba(0, 0, 0, 0.9));
}

@media screen and (max-width: 768px) {
  .publication-logos { gap: 0.8rem 1.6rem; }
  .publication-logos img { height: 28px; }
  .logo-eth { height: 24px; }
}

.publication-venue-line {
  margin-top: 0.5rem;
}

.publication-venue {
  color: #555;
  font-weight: bold;
}

.publication-awards {
  color: #ff3860;
  width: fit-content;
  font-weight: bolder;
}

.button.is-disabled,
.button.is-disabled:hover {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}


/* --- Sections -------------------------------------------------------------- */

.section .title.is-3 {
  font-family: 'Google Sans', sans-serif;
  border-bottom: 2px solid var(--bcg-line);
  padding-bottom: 0.4rem;
  margin-bottom: 1.5rem;
}

.is-light-section {
  background-color: #fafbfc;
  border-top: 1px solid #eef0f3;
  border-bottom: 1px solid #eef0f3;
}

.caption {
  font-size: 0.85rem;
  color: #5a6068;
  line-height: 1.45;
  margin-top: 0.6rem;
  text-align: center;
}

.caption b {
  color: var(--bcg-ink);
}


/* --- Media: real videos/images and their placeholders ---------------------- */

.result-media {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid #e3e6ea;
  border-radius: 10px;
  background: #fff;
}

.media-placeholder {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 1.25rem;
  text-align: center;
  color: var(--bcg-muted);
  border: 2px dashed #c9cdd4;
  border-radius: 10px;
  background: repeating-linear-gradient(45deg,
      #fbfcfd, #fbfcfd 12px, #f3f5f8 12px, #f3f5f8 24px);
}

.media-placeholder.is-16by9 { aspect-ratio: 16 / 9; }
.media-placeholder.is-4by3  { aspect-ratio: 4 / 3; }
.media-placeholder.is-wide  { aspect-ratio: 21 / 9; }

.media-placeholder .ph-icon {
  font-size: 1.9rem;
  color: #b3b9c2;
  line-height: 1;
}

.media-placeholder .ph-title {
  font-family: 'Google Sans', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: #5d6570;
  max-width: 34rem;
}

.media-placeholder .ph-path {
  font-size: 0.72rem;
  color: #868d97;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid #e0e3e8;
  border-radius: 4px;
  padding: 0.1rem 0.45rem;
}


/* --- Method steps ---------------------------------------------------------- */

.method-steps .step-card {
  height: 100%;
  background: #fff;
  border: 1px solid #e6e9ed;
  border-top: 3px solid var(--bcg-blue);
  border-radius: 8px;
  padding: 1.25rem 1.25rem 0.75rem;
}

.method-steps .step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 50%;
  background: var(--bcg-blue);
  color: #fff;
  font-family: 'Google Sans', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.method-steps .step-card p {
  font-size: 0.92rem;
  line-height: 1.5;
  margin-bottom: 0.7rem;
}

.method-steps .step-card .title {
  margin-bottom: 0.6rem;
}

/* The three cards are narrow; keep their display math inside the card. */
.method-steps .eq {
  font-size: 0.78rem;
}

/* Display math must never widen the page: let it scroll inside its own box. */
.eq {
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  font-size: 0.9rem;
}

.eq mjx-container[display="true"],
mjx-container[display="true"] {
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  margin: 0.5em 0 !important;
}

/* Flex/grid children default to min-width:auto, which lets wide content push
   the page sideways. */
.columns > .column,
.step-card,
.content {
  min-width: 0;
}


/* --- Pipeline walk-through ------------------------------------------------- */

.pipeline-cues {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
}

.pipeline-cue {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  margin: 0;
  padding: 0.6rem 0.8rem;
  border-left: 3px solid transparent;
  border-radius: 0 6px 6px 0;
  cursor: pointer;
  transition: background-color 0.25s ease, border-color 0.25s ease, opacity 0.25s ease;
  opacity: 0.55;
}

.pipeline-cue p {
  margin: 0;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--bcg-ink);
}

.pipeline-cue:hover {
  opacity: 0.85;
}

.pipeline-cue.is-active {
  opacity: 1;
  background: #eef4fb;
  border-left-color: var(--bcg-blue);
}

/* Without JS nothing is marked active, so every step reads at full strength. */
.pipeline-cues:not(.is-synced) .pipeline-cue {
  opacity: 1;
  cursor: default;
}

.pipeline-cue .pipeline-index {
  background: var(--bcg-muted);
  transition: background-color 0.25s ease;
}

.pipeline-cue.is-active .pipeline-index {
  background: var(--bcg-blue);
}

.pipeline-index {
  flex: 0 0 auto;
  width: 1.7rem;
  height: 1.7rem;
  line-height: 1.7rem;
  text-align: center;
  border-radius: 50%;
  background: var(--bcg-blue);
  color: #fff;
  font-family: 'Google Sans', sans-serif;
  font-size: 0.86rem;
  font-weight: 700;
}


/* --- Gradient phases ------------------------------------------------------- */

.ph-fwd { color: #2f9e4f; }
.ph-bwd { color: #d2801e; }


/* --- Limitations ----------------------------------------------------------- */

.limitation {
  border-left: 3px solid var(--bcg-line);
  padding: 0.1rem 0 0.1rem 1.15rem;
  margin-bottom: 1.9rem;
}

.limitation .title.is-5 {
  margin-bottom: 0.5rem;
}

.limitation .content {
  margin-bottom: 0;
}


/* --- Tables ---------------------------------------------------------------- */

.results-table th,
.params-table th {
  font-family: 'Google Sans', sans-serif;
  color: var(--bcg-ink);
  vertical-align: middle;
}

.results-table thead th {
  border-bottom: 2px solid var(--bcg-line);
}

.results-table tbody tr.is-selected-row {
  background-color: #eef4fb;
}

.params-table td {
  font-size: 0.9rem;
  border-bottom: 1px solid #edeff2;
}

.params-table tbody tr:hover {
  background-color: #fafbfc;
}

.tbd {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #9a6a12;
  background: #fdf3dc;
  border: 1px solid #f2e2b6;
  border-radius: 3px;
  padding: 0.05rem 0.4rem;
}


/* --- Misc ------------------------------------------------------------------ */

.publication-video {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 56.25%;
  overflow: hidden;
  border-radius: 10px !important;
}

.publication-video iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.results-carousel {
  overflow: hidden;
}

.results-carousel .item {
  margin: 5px;
  overflow: hidden;
  border: 1px solid #bbb;
  border-radius: 10px;
  padding: 0;
  font-size: 0;
}

.results-carousel video {
  margin: 0;
}

@media screen and (max-width: 768px) {
  .media-placeholder.is-wide { aspect-ratio: 16 / 9; }
  .media-placeholder .ph-title { font-size: 0.85rem; }
  .method-steps .step-card { margin-bottom: 1rem; }
}


/* --- Citations -------------------------------------------------------------- */

a.cite {
  white-space: nowrap;
}

.references {
  list-style: none;
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.5;
  color: #3a3f45;
}

.references li {
  padding: 0.3rem 0.5rem;
  border-radius: 6px;
  scroll-margin-top: 1rem;
}

.references li:target {
  background: #fff6d6;
}


/* --- Contact-scaling plot (Method overview) --------------------------------- */

.contact-plot {
  --cp-k50: #6da7ec;
  --cp-k100: #256abf;
  --cp-k300: #0d366b;
  max-width: 560px;
  margin: 0.5rem auto 2.5rem;
}

.contact-plot-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.35rem 1.25rem;
  font-size: 0.85rem;
  color: var(--bcg-ink);
  margin-bottom: 0.25rem;
}

.contact-plot-legend span {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.cp-swatch {
  display: inline-block;
  width: 18px;
  height: 2px;
  border-radius: 1px;
}
.cp-swatch.cp-k50  { background: var(--cp-k50); }
.cp-swatch.cp-k100 { background: var(--cp-k100); }
.cp-swatch.cp-k300 { background: var(--cp-k300); }

.contact-plot-frame {
  position: relative;
}

.contact-plot-svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
  font-family: 'Noto Sans', sans-serif;
}

.cp-grid    { stroke: #e6e8ec; stroke-width: 1; }
.cp-axis    { stroke: #b9bec6; stroke-width: 1; }
.cp-contact { stroke: #b9bec6; stroke-width: 1; stroke-dasharray: 3 4; }
.cp-tick    { font-size: 13px; fill: var(--bcg-muted); }
.cp-label   { font-size: 14px; fill: #5a6068; }

.cp-line {
  fill: none;
  stroke-width: 2;
  stroke-linejoin: round;
  stroke-linecap: round;
}
.cp-line.cp-k50  { stroke: var(--cp-k50); }
.cp-line.cp-k100 { stroke: var(--cp-k100); }
.cp-line.cp-k300 { stroke: var(--cp-k300); }

.cp-hover { visibility: hidden; pointer-events: none; }
.contact-plot.is-hovering .cp-hover { visibility: visible; }
.cp-cross { stroke: #9aa1ab; stroke-width: 1; }
.cp-dot { stroke: #fafbfc; stroke-width: 2; }
.cp-dot.cp-k50  { fill: var(--cp-k50); }
.cp-dot.cp-k100 { fill: var(--cp-k100); }
.cp-dot.cp-k300 { fill: var(--cp-k300); }
.cp-hit { cursor: crosshair; }

.contact-plot-tip {
  position: absolute;
  top: 0;
  left: 0;
  display: none;
  padding: 0.4rem 0.6rem;
  font-size: 0.8rem;
  line-height: 1.45;
  color: var(--bcg-ink);
  background: #fff;
  border: 1px solid #e3e6ea;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  pointer-events: none;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.contact-plot.is-hovering .contact-plot-tip { display: block; }
.contact-plot-tip .cp-row { display: flex; align-items: center; gap: 0.4rem; }
.contact-plot-tip .cp-row b { margin-left: auto; padding-left: 0.75rem; font-weight: 600; }