/* ─── Slide Mode ─── */
.slide-overlay {
  position: fixed;
  inset: 0;
  background: #0d1117;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.slide-overlay.open {
  opacity: 1;
  pointer-events: all;
}

/* ─── Header ─── */
.slide-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.75rem 2rem 0.25rem;
  flex-shrink: 0;
  position: relative;
}

.slide-title {
  font-family: "Cinzel", serif;
  font-size: 0.9rem;
  background: linear-gradient(135deg, #c9a84c, #f5d98e, #c9a84c);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.6;
}

.slide-label {
  font-family: "Cinzel", serif;
  font-size: 2.2rem;
  color: #e6edf3;
  letter-spacing: 0.04em;
  text-align: center;
}

/* ─── Chart area ─── */
.slide-chart-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 2rem;
  min-height: 0;
  overflow: hidden;
}

/* Override chart container styles when inside slide mode */
.slide-chart-wrap #chart-container {
  max-width: 100%;
  width: 100%;
  height: 100%;
  border: none;
  background: transparent;
  padding: 0 2rem;
  display: flex;
  flex-direction: column;
  position: relative;
}

.slide-chart-wrap #chart {
  width: 100%;
  flex: 1;
  min-height: 0;
}

.slide-chart-wrap .date-display {
  font-size: 2rem;
  position: relative;
  top: auto;
  right: auto;
  text-align: right;
  flex-shrink: 0;
}

/* ─── Bottom controls ─── */
.slide-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 0.75rem 2rem;
  flex-shrink: 0;
  position: relative;
  z-index: 10;
  opacity: 0.3;
  transition: opacity 0.3s ease;
}

.slide-overlay:hover .slide-controls,
.slide-controls:focus-within {
  opacity: 1;
}

.slide-nav-btn {
  background: rgba(33, 38, 45, 0.8) !important;
  border: 1px solid #30363d !important;
  color: #e6edf3;
  font-size: 1rem;
  padding: 0.5rem 1rem !important;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s ease;
  backdrop-filter: blur(4px);
}

.slide-nav-btn:hover {
  background: rgba(48, 54, 61, 0.9) !important;
  border-color: #8b949e !important;
}

.slide-exit-btn {
  margin-left: 1.5rem;
  color: #f78166;
  border-color: #f78166 !important;
}

.slide-exit-btn:hover {
  background: rgba(247, 129, 102, 0.15) !important;
}

/* ─── Speed controls ─── */
.slide-speed {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-left: 1rem;
}

.slide-speed-label {
  font-size: 0.8rem;
  color: #8b949e;
}

.slide-speed-btn {
  background: rgba(33, 38, 45, 0.8) !important;
  border: 1px solid #30363d !important;
  color: #8b949e;
  font-size: 0.8rem;
  padding: 0.3rem 0.7rem !important;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.slide-speed-btn:hover {
  background: rgba(48, 54, 61, 0.9) !important;
  border-color: #8b949e !important;
  color: #e6edf3;
}

.slide-speed-btn.active {
  background: #c9a84c !important;
  color: #0d1117;
  border-color: #c9a84c !important;
  font-weight: 600;
}

/* ─── Dots ─── */
.slide-dots {
  display: flex;
  gap: 6px;
  align-items: center;
}

.slide-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #30363d;
  cursor: pointer;
  transition: all 0.2s ease;
}

.slide-dot.active {
  background: #c9a84c;
  transform: scale(1.4);
}

/* ─── Slide Mode Enter Button ─── */
#btn-slidemode {
  border-color: #58a6ff;
  color: #58a6ff;
}

#btn-slidemode:hover {
  background: rgba(88, 166, 255, 0.15);
}

/* ─── Hide normal UI elements when slide overlay captures chart ─── */
body.slide-active > h1,
body.slide-active > .view-nav,
body.slide-active > .controls,
body.slide-active > .legend {
  visibility: hidden;
}

/* ─── Mobile Portrait ─── */
@media (max-width: 768px) and (orientation: portrait) {
  .slide-header {
    padding: 0.3rem 0.75rem 0;
  }

  .slide-title {
    font-size: 0.65rem;
  }

  .slide-label {
    font-size: 1.2rem;
  }

  .slide-chart-wrap {
    padding: 0 0.25rem;
  }

  .slide-chart-wrap #chart-container {
    padding: 0 0.25rem;
  }

  .slide-chart-wrap .date-display {
    font-size: 0.9rem;
    padding-right: 0.5rem;
  }

  .slide-controls {
    gap: 0.4rem;
    padding: 0.3rem 0.5rem;
    flex-wrap: wrap;
  }

  .slide-nav-btn {
    font-size: 0.8rem;
    padding: 0.35rem 0.6rem !important;
  }

  .slide-dots {
    order: 1;
    width: 100%;
    justify-content: center;
  }

  .slide-speed {
    margin-left: 0;
  }

  .slide-speed-label {
    display: none;
  }

  .slide-speed-btn {
    font-size: 0.7rem;
    padding: 0.25rem 0.5rem !important;
  }

  .slide-exit-btn {
    margin-left: 0.5rem;
  }
}

/* ─── Mobile Landscape ─── */
@media (max-height: 500px) {
  .slide-header {
    padding: 0.1rem 1rem 0;
    flex-direction: row;
    gap: 0.75rem;
    justify-content: center;
  }

  .slide-title {
    font-size: 0.6rem;
  }

  .slide-label {
    font-size: 0.9rem;
  }

  .slide-chart-wrap {
    padding: 0 0.25rem;
  }

  .slide-chart-wrap #chart-container {
    padding: 0 0.25rem;
  }

  .slide-chart-wrap .date-display {
    font-size: 0.85rem;
    padding-right: 0.5rem;
  }

  .slide-controls {
    gap: 0.4rem;
    padding: 0.1rem 0.5rem;
  }

  .slide-nav-btn {
    font-size: 0.7rem;
    padding: 0.1rem 0.4rem !important;
  }

  .slide-speed-btn {
    font-size: 0.6rem;
    padding: 0.1rem 0.35rem !important;
  }

  .slide-speed-label {
    display: none;
  }

  .slide-exit-btn {
    margin-left: 0.5rem;
  }
}

/* ─── Tablet / small desktop ─── */
@media (max-width: 1024px) and (min-width: 769px) {
  .slide-label {
    font-size: 1.6rem;
  }

  .slide-chart-wrap {
    padding: 0 1rem;
  }
}