/* ==========================================================================
   TRUECALCI WORKSTATION COMPANION & IAB ADVERTISING ARCHITECTURE
   Google AdSense, Prebid & IAB Compliant: Zero-CLS, High-Viewability Standards
   ========================================================================== */

/* Right Workstation Column: Hosts Companion Dock + Dedicated Ad Below */
.workstation-right-dock,
.ad-column-container {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  position: sticky;
  top: 4.5rem;
  max-height: calc(100vh - 5.5rem);
  width: 100%;
  transition: all var(--transition-base);
}

/* --------------------------------------------------------------------------
   1. Workstation Companion Dock (Tape & Notes)
   -------------------------------------------------------------------------- */
.companion-dock {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: all var(--transition-base);
  width: 100%;
  max-height: 270px;
}

/* Collapsed State for Right Column */
.dock-collapsed .workstation-right-dock,
.dock-collapsed .ad-column-container {
  width: 44px;
  min-width: 44px;
  overflow: hidden;
  align-items: center;
}

.dock-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0.8rem;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-subtle);
}

.dock-collapsed .dock-header {
  padding: 0.5rem 0.25rem;
  justify-content: center;
  border-bottom: none;
}

.dock-title {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  letter-spacing: 0.02em;
}

.dock-collapsed .dock-title {
  display: none;
}

.dock-toggle-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  width: 24px;
  height: 24px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  cursor: pointer;
  font-size: 0.75rem;
  transition: all var(--transition-fast);
}

.dock-toggle-btn:hover {
  color: var(--text-primary);
  background-color: var(--bg-surface);
  border-color: var(--accent-border);
}

/* Dock Navigation Tabs */
.dock-tabs {
  display: flex;
  padding: 0.35rem 0.5rem;
  background-color: var(--bg-subtle);
  border-bottom: 1px solid var(--border-color);
  gap: 4px;
}

.dock-collapsed .dock-tabs {
  display: none;
}

.dock-tab-btn {
  flex: 1;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.3rem 0.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  transition: all var(--transition-fast);
}

.dock-tab-btn:hover {
  color: var(--text-primary);
}

.dock-tab-btn.active {
  background-color: var(--bg-surface);
  color: var(--accent-primary);
  border-color: var(--border-color);
  box-shadow: var(--shadow-sm);
}

/* Dock Panes Container */
.dock-content {
  padding: 0.65rem 0.75rem;
  overflow-y: auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  scrollbar-width: none;
}

.dock-content::-webkit-scrollbar {
  display: none;
}

.dock-collapsed .dock-content {
  display: none;
}

/* Vertical Icon Rail for Collapsed Mode */
.dock-collapsed-rail {
  display: none;
  flex-direction: column;
  gap: 0.65rem;
  padding-top: 0.65rem;
  align-items: center;
}

.dock-collapsed .dock-collapsed-rail {
  display: flex;
}

.dock-rail-icon-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  cursor: pointer;
  font-size: 0.8rem;
  transition: all var(--transition-fast);
}

.dock-rail-icon-btn:hover {
  color: var(--accent-primary);
  border-color: var(--accent-border);
  transform: scale(1.08);
}

/* 1. Tape / History Pane */
.dock-pane {
  display: none;
  flex-direction: column;
  gap: 0.5rem;
}

.dock-pane.active {
  display: flex;
}

.history-empty-msg {
  text-align: center;
  font-size: 0.73rem;
  color: var(--text-muted);
  padding: 1.25rem 0.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
}

.history-item {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.65rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.76rem;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.history-item:hover {
  border-color: var(--accent-border);
  background-color: var(--bg-surface);
  transform: translateY(-1px);
}

.history-item-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 700;
  color: var(--text-secondary);
}

.history-item-val {
  font-family: var(--font-mono);
  font-weight: 800;
  color: var(--text-primary);
  font-size: 0.92rem;
}

/* 2. Scratchpad Pane */
.scratchpad-textarea {
  width: 100%;
  height: 140px;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.55rem 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-primary);
  resize: vertical;
  outline: none;
  transition: border-color var(--transition-fast);
  line-height: 1.35;
}

.scratchpad-textarea:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.scratchpad-help {
  font-size: 0.68rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   2. Dedicated IAB Advertisement Below the Companion Dock
   Technical Specifications:
   - Size: 300×250 Medium Rectangle (MREC)
   - Zero CLS layout containment (min-height reserved)
   - Viewability: Above-the-fold desktop sticky placement (>75% viewability rate)
   - Policy: Strict compliance labeling with 10px uppercase ADVERTISEMENT tag
   -------------------------------------------------------------------------- */
.sidebar-ad-container {
  width: 100%;
  display: flex;
  flex-direction: column;
  transition: opacity 0.2s var(--ease-spring);
}

.dock-collapsed .sidebar-ad-container {
  display: none;
}

.ad-slot-wrapper {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.65rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  width: 100%;
}

.ad-compliance-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.45rem;
  padding: 0 0.25rem;
}

.ad-label {
  font-size: 0.62rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.ad-label::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background-color: var(--emerald-primary);
}

.ad-specs-tag {
  font-size: 0.58rem;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  padding: 1px 5px;
  border-radius: 3px;
  letter-spacing: 0.04em;
}

/* 300x250 Medium Rectangle Container with Zero-CLS Dimension Reservation */
.ad-slot-300x250 {
  width: 100%;
  max-width: 300px;
  height: 250px;
  min-height: 250px;
  aspect-ratio: 300 / 250;
  background: linear-gradient(180deg, var(--bg-subtle) 0%, var(--bg-surface) 100%);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0.85rem;
  position: relative;
  overflow: hidden;
  contain: layout;
}

.partner-graphic {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  width: 100%;
  height: 100%;
  padding: 0.5rem;
}

.partner-icon {
  font-size: 1.6rem;
  margin-bottom: 0.4rem;
  filter: drop-shadow(0 2px 8px var(--accent-glow));
}

.partner-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
  letter-spacing: -0.01em;
}

.partner-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.35;
  margin-bottom: 0.65rem;
  max-width: 240px;
}

.partner-cta-pill {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: 12px;
  background-color: var(--accent-light);
  color: var(--accent-primary);
  border: 1px solid var(--accent-border);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.partner-cta-pill:hover {
  background-color: var(--accent-primary);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 4px 10px -2px var(--accent-glow);
}

/* --------------------------------------------------------------------------
   3. Responsive Leaderboard Ad Slot (728×90 Desktop / 320×50 Mobile)
   -------------------------------------------------------------------------- */
.ad-leaderboard-container {
  max-width: var(--max-width);
  margin: 1.25rem auto;
  padding: 0 1.25rem;
  width: 100%;
  min-height: 60px;
  contain: layout;
  content-visibility: auto;
}

.ad-slot-728x90 {
  width: 100%;
  max-width: 728px;
  height: 60px;
  min-height: 60px;
  margin: 0 auto;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  color: var(--text-secondary);
  font-size: 0.78rem;
  box-shadow: var(--shadow-sm);
  padding: 0 1rem;
  contain: layout paint;
}

@media (max-width: 768px) {
  .ad-slot-728x90 {
    height: 50px;
    min-height: 50px;
    font-size: 0.7rem;
  }
}