/* Dissertation axonometric visualization
   ------------------------------------------------------------------
   A monochrome architectural drawing: every dissertation is one
   identical axonometric square outline, advisors are bookshelves with
   a shared diagonal baseline, and adjacent years overlap heavily. */

.diss-viz {
  margin: 0 0 3rem;
}

.diss-viz__intro {
  max-width: 75rem;
  margin: 0 0 1.5rem;
}

.diss-viz__intro h2 {
  font-weight: 300;
  letter-spacing: 0.02em;
}

.diss-viz__intro p {
  color: #6b6b6b;
  font-weight: 300;
  margin: 0;
}

/* Responsive frame: the drawing fits the available width and scales from its viewBox. */
.diss-viz__stage {
  display: grid;
  grid-template-columns: minmax(12rem, 0.34fr) minmax(0, 1fr);
  position: relative;
  overflow: visible;
  border: 0.5px solid #e3e3e3;
  background: #fcfcfc;
  min-height: clamp(16rem, 42vw, 30rem);
  padding: 0 0 3rem;
}

.diss-viz__details {
  box-sizing: border-box;
  border-right: 0.5px solid #e3e3e3;
  contain: size;
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
  min-width: 0;
  padding: clamp(1.25rem, 3vw, 2.5rem) clamp(1rem, 2.5vw, 2rem);
}

.diss-viz__details-heading {
  font: inherit;
  margin: 0;
}

.diss-viz__details-advisor,
.diss-viz__details-count {
  display: block;
}

.diss-viz__details-advisor {
  color: #000;
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 400;
  overflow-wrap: anywhere;
  text-decoration: underline;
  text-decoration-thickness: 0.05em;
  text-underline-offset: 0.12em;
}

.diss-viz__details-advisor:hover,
.diss-viz__details-advisor:focus {
  color: #000;
  text-decoration-thickness: 0.08em;
}

.diss-viz__details-count {
  color: #000;
  font-size: 0.8rem;
  font-weight: 300;
  margin-top: 0.25rem;
}

.diss-viz__selection {
  color: #2b2b2b;
  flex: 1 1 auto;
  font-size: 0.8rem;
  line-height: 1.35;
  margin-top: 1.5rem;
  min-height: 0;
  overflow-y: auto;
  overflow-wrap: anywhere;
  overscroll-behavior: contain;
  padding-right: 0.5rem;
}

.diss-viz__selection:empty {
  margin-top: 0;
  padding-right: 0;
}

.diss-viz__selection strong {
  font-weight: 600;
}

.diss-viz__selection .diss-viz__tooltip-meta {
  color: #777;
  display: block;
  font-weight: 300;
  margin-top: 0.2rem;
}

.diss-viz__chart {
  min-width: 0;
  position: relative;
}

.diss-viz__svg {
  display: block;
  height: auto;
  max-width: 100%;
  width: 100%;
}

/* Every advisor-year is one instance of the same axonometric square
   <symbol>. Stroke is set on the <use> element and inherited by the
   symbol's outline, so same-year dissertation counts can thicken it. */
.diss-viz__svg .diss {
  fill: none;
  stroke: rgba(0, 0, 0, 0.5);
  stroke-width: 1;
  cursor: pointer;
  outline: none;
  pointer-events: bounding-box;
  transition: stroke 0.12s ease;
}

/* Hover/focus: only a slightly darker outline; stroke width encodes count. */
.diss-viz__svg .diss:hover,
.diss-viz__svg .diss:focus,
.diss-viz__svg .diss.is-active,
.diss-viz__svg .diss.is-selected {
  stroke: rgba(0, 0, 0, 0.5);
}

.diss-viz__svg .diss.is-selected {
  stroke: #000;
}

.diss-viz__svg .axis-tick {
  stroke: #d6d6d6;
  stroke-width: 1;
}

.diss-viz__svg .axis-year {
  fill: #8a8a8a;
  font-family: inherit;
  font-size: clamp(0.55rem, 1.2vw, 0.625rem);
  font-weight: 300;
}

.diss-viz__svg .axis-gap,
.diss-viz__svg .axis-endpoint {
  fill: #6f6f6f;
  font-family: inherit;
  font-size: 10px;
  font-weight: 300;
}

.diss-viz__svg .axis-gap {
  letter-spacing: 0;
}

.diss-viz__svg .axis-rule {
  stroke: #e3e3e3;
  stroke-width: 1;
}

.diss-viz__svg .diss-timeline-connector {
  pointer-events: none;
  stroke: rgba(0, 0, 0, 0.18);
  stroke-dasharray: 2 4;
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

/* Floating tooltip: minimal card, no shadow theatrics. */
.diss-viz__tooltip {
  position: absolute;
  top: 0;
  left: 0;
  box-sizing: border-box;
  max-height: calc(100% - 1rem);
  max-width: min(22rem, calc(100% - 1rem));
  overflow: auto;
  padding: 0.5rem 0.7rem;
  background: #ffffff;
  border: 0.5px solid #bcbcbc;
  color: #2b2b2b;
  font-size: 0.8rem;
  line-height: 1.35;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.1s ease;
  z-index: 5;
}

.diss-viz__tooltip.is-visible {
  opacity: 1;
}

.diss-viz__tooltip strong {
  font-weight: 600;
}

.diss-viz__tooltip .diss-viz__tooltip-meta {
  color: #777;
  display: block;
  margin-top: 0.2rem;
  font-weight: 300;
}

.diss-viz__tooltip-list {
  margin: 0.45rem 0 0;
  padding-left: 1rem;
}

.diss-viz__tooltip-list li + li {
  margin-top: 0.45rem;
}

/* Legend: a quiet key, echoing the reference's caption strip. */
.diss-viz__legend {
  align-items: center;
  color: #8a8a8a;
  display: flex;
  flex-wrap: nowrap;
  /* font-size: clamp(0.72rem, 1.6vw, 0.78rem); */
  font-weight: 300;
  gap: 1rem;
  justify-content: space-between;
  margin: 0.45rem 0 0;
  width: 100%;
}

.diss-viz__legend-left {
  align-items: center;
  display: flex;
  gap: 1.25rem;
  justify-content: flex-start;
}

.diss-viz__legend-right {
  margin-left: auto;
  text-align: right;
  white-space: nowrap;
}

.diss-viz__legend-item {
  align-items: center;
  display: flex;
  gap: 0.45rem;
}

.diss-viz__legend svg {
  display: block;
}

.diss-viz__carousel {
  margin: 0;
}

.diss-viz__controls {
  align-items: center;
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  margin: 0.75rem 0 0;
}

.diss-viz__stage .diss-viz__controls {
  border-top: 0.5px solid #e3e3e3;
  bottom: 0;
  box-sizing: border-box;
  min-height: 3rem;
  left: 50%;
  margin: 0;
  padding: 0 0.65rem;
  position: absolute;
  transform: translateX(-50%);
  width: 100%;
  z-index: 6;
}

.diss-viz__controls #pauseCarousel {
  position: absolute;
  right: 0.65rem;
  top: 50%;
  transform: translateY(-50%);
  margin-left: 0;
}

.diss-viz__button {
  background: transparent;
  border: 0;
  color: #555;
  font: inherit;
  font-size: clamp(0.9rem, 1.8vw, 1rem);
  font-weight: 300;
  line-height: 1;
  min-width: 1.2rem;
  padding: 0.25rem 0.35rem;
}

.diss-viz__button:hover,
.diss-viz__button:focus {
  color: #222;
}

.diss-viz__button:disabled {
  color: #bcbcbc;
  cursor: not-allowed;
}

.diss-viz__status {
  color: #8a8a8a;
  font-size: clamp(0.72rem, 1.6vw, 0.78rem);
  font-weight: 300;
  min-width: 4.5rem;
  text-align: center;
}

.diss-viz__viewport {
  overflow: hidden;
  touch-action: pan-y;
  transition: height 0.28s ease;
}

.diss-viz__track {
  align-items: flex-start;
  display: flex;
  transition: transform 0.28s ease;
  will-change: transform;
}

.diss-viz__slide {
  flex: 0 0 100%;
  min-width: 100%;
}

.diss-viz__advisor-count {
  color: #8a8a8a;
}

.diss-viz__error {
  color: #8a8a8a;
  font-weight: 300;
  padding: 2rem 0;
}

@media (max-width: 767.98px) {
  .diss-viz__stage {
    grid-template-columns: minmax(0, 1fr);
    min-height: 14rem;
  }

  .diss-viz__details {
    border-bottom: 0.5px solid #e3e3e3;
    border-right: 0;
    contain: none;
    height: auto;
    padding: 1rem;
  }

  .diss-viz__details-advisor {
    font-size: 1.1rem;
  }

  .diss-viz__selection {
    flex: 0 1 auto;
    margin-top: 1rem;
    max-height: 12rem;
  }

  .diss-viz__controls {
    flex-wrap: nowrap;
  }

  .diss-viz__legend {
    flex-wrap: wrap;
    gap: 0.4rem 0.85rem;
  }

  .diss-viz__legend-right {
    margin-left: 0;
    text-align: left;
    white-space: normal;
    font-size: 0.74rem;
  }

  .diss-viz__svg .axis-year {
    font-size: 0.95rem;
  }

  .diss-viz__svg .axis-gap,
  .diss-viz__svg .axis-endpoint {
    font-size: 12px;
  }

  .diss-viz__legend {
    font-size: 0.74rem;
    line-height: 1.25;
  }

  .diss-viz__button,
  .diss-viz__status {
    font-size: 0.98rem;
  }

  .diss-viz__status {
    font-size: 0.74rem;
    order: 0;
    width: auto;
  }
}