/* Session view fills the screen */
#session-view {
  display: flex;
  flex-direction: column;
  height: 100dvh;
  background: var(--color-bg);
  position: relative;
}
#session-view.with-tab-bar {
  height: calc(100dvh - 48px - env(safe-area-inset-bottom));
}
#session-view[hidden] {
  display: none !important;
}

/* Progress bar */
.session-progress {
  display: flex;
  height: 6px;
  background: var(--color-bg-elevated);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.session-progress-segment {
  height: 100%;
  transition: background var(--transition-base), width 0.3s ease-out;
}
.session-progress-segment.active {
  background: var(--color-accent);
}
.session-progress-segment.completed {
  background: var(--color-accent);
  opacity: 0.4;
}
.session-progress-segment.upcoming {
  background: var(--color-bg-surface);
}

/* Exercise label */
.session-label {
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
  color: var(--color-text-dim);
  text-align: center;
  transition: opacity var(--transition-base);
}

.session-label.slide-in {
  animation: session-label-slide-in 0.3s ease-out;
}

@keyframes session-label-slide-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Phase info before main label */
.session-phase {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  opacity: 0.7;
  margin-right: var(--space-xs);
}

/* Canvas fills available space */
#session-canvas {
  flex: 1;
  width: 100%;
  min-height: 0;
}

/* Transition overlay */
.session-transition {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(13, 13, 13, 0.85);
  z-index: var(--z-overlay);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}
.session-transition[hidden] {
  display: none !important;
}
.session-transition.visible {
  opacity: 1;
  pointer-events: auto;
}
.session-transition-text {
  font-size: var(--font-size-xl);
  color: var(--color-text);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}
.session-transition-next {
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
}
.session-transition-name {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text);
}
.session-transition-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  max-width: 280px;
}

/* Controls */
.session-controls {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  justify-content: center;
  background: var(--color-bg);
}
.session-controls[hidden] {
  display: none !important;
}
.session-btn {
  min-width: 44px;
  min-height: 44px;
  padding: var(--space-xs) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-elevated);
  color: var(--color-text);
  font-size: var(--font-size-base);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
}
.session-btn-icon {
  font-size: var(--font-size-base);
  line-height: 1;
}
.session-btn-text {
  font-size: var(--font-size-sm);
}
.session-btn-end {
  margin-left: auto;
  color: var(--color-off);
  border-color: var(--color-off);
}
.session-btn-primary {
  background: var(--color-accent);
  color: var(--color-bg);
  border-color: var(--color-accent);
  font-weight: 600;
}

/* Skip Note — secondary, less prominent */
#session-skip-note {
  font-size: 13px;
  padding: 6px 12px;
  opacity: 0.7;
  transition: opacity 0.15s ease;
}
#session-skip-note:hover {
  opacity: 1;
}
#session-skip-note[hidden] {
  display: none !important;
}
#session-skip-note.skip-note-flash {
  opacity: 1;
  background: var(--color-bg-surface);
}

/* Summary overlay */
.session-summary {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  background: rgba(13, 13, 13, 0.95);
  z-index: var(--z-overlay);
  padding: var(--space-xl);
  animation: session-summary-fade-in 0.4s ease-out;
}
.session-summary[hidden] {
  display: none !important;
}

@keyframes session-summary-fade-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.session-summary-icon {
  font-size: 64px;
  color: var(--color-accent);
  line-height: 1;
}
.session-summary-title {
  font-size: var(--font-size-xl);
  color: var(--color-accent);
  margin: 0;
}
.session-summary-time {
  font-size: clamp(1.5rem, 5vw, 2.5rem);
  font-weight: 700;
  color: var(--color-text);
  text-align: center;
}
.session-summary-exercises {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  text-align: left;
  width: 100%;
  max-width: 300px;
}
.session-summary-exercise-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-dim);
}
.session-summary-exercise-check {
  color: var(--color-accent);
  font-weight: 700;
}
.session-summary-message {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-style: italic;
  text-align: center;
}
.session-summary-stats {
  color: var(--color-text-dim);
  text-align: center;
  line-height: 1.8;
}

/* Hide tab bar during sessions */
.tab-bar-hidden {
  display: none !important;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .session-label.slide-in {
    animation: none;
  }
  .session-summary {
    animation: none;
  }
  .session-transition {
    transition: none;
  }
  .session-progress-segment {
    transition: background var(--transition-base);
  }
  #session-skip-note {
    transition: none;
  }
}