/* ==========================================================================
   PRESENTATION DECK & EDITORIAL SCROLL MODES
   Dual-Experience Architecture: 16:9 Interactive Deck vs Continuous Editorial
   ========================================================================== */

/* Top Navigation Bar */
.executive-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--chirani-teal-translucent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-dark-subtle);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  transition: all var(--transition-smooth);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.brand-badge {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  text-decoration: none;
}

.brand-logo-img {
  height: 28px;
  width: auto;
  object-fit: contain;
  filter: brightness(1.05);
}

.brand-divider {
  width: 1px;
  height: 20px;
  background: var(--border-dark-gold);
}

.candidate-tag {
  display: flex;
  flex-direction: column;
}

.candidate-name {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--chirani-gold-champagne);
}

.candidate-role {
  font-size: var(--text-2xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--chirani-white-70);
}

.header-center {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.current-slide-indicator {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--chirani-white-90);
  background: rgba(255, 255, 255, 0.05);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-dark-subtle);
}

.current-slide-indicator .num-highlight {
  color: var(--chirani-gold-champagne);
  font-weight: 600;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Luxury Button Controls */
.btn-nav-control {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.45rem 1rem;
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--chirani-alabaster);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-dark-subtle);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.btn-nav-control:hover {
  background: var(--chirani-gold-faint);
  border-color: var(--chirani-gold-muted);
  color: var(--chirani-gold-champagne);
  transform: translateY(-1px);
}

.btn-nav-control.active {
  background: var(--chirani-gold-champagne);
  border-color: var(--chirani-gold-champagne);
  color: var(--chirani-teal-primary);
  font-weight: 600;
}

.btn-gold-action {
  background: var(--chirani-gold-champagne);
  color: var(--chirani-teal-primary);
  border-color: var(--chirani-gold-champagne);
  font-weight: 600;
}

.btn-gold-action:hover {
  background: var(--chirani-gold-rich);
  border-color: var(--chirani-gold-rich);
  color: var(--chirani-teal-primary);
  box-shadow: var(--shadow-gold);
}

/* Mode Switcher Pills */
.mode-toggle-group {
  display: flex;
  align-items: center;
  background: rgba(0, 0, 0, 0.35);
  border-radius: var(--radius-full);
  padding: 3px;
  border: 1px solid var(--border-dark-subtle);
}

.mode-toggle-btn {
  padding: 0.3rem 0.85rem;
  font-size: var(--text-2xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--chirani-white-70);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.mode-toggle-btn.active {
  background: var(--chirani-gold-champagne);
  color: var(--chirani-teal-primary);
  font-weight: 600;
}

/* Progress Bar at Top */
.presentation-progress-track {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(255, 255, 255, 0.06);
  z-index: 999;
}

.presentation-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--chirani-gold-muted), var(--chirani-gold-champagne));
  transition: width var(--transition-smooth);
}

/* ==========================================================================
   MODE 1: PRESENTATION DECK (16:9 Fixed Slides)
   ========================================================================== */
body.mode-deck {
  height: 100vh;
  overflow: hidden;
}

.deck-viewport {
  position: fixed;
  top: var(--header-height);
  bottom: 60px;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  background: radial-gradient(circle at 50% 20%, rgba(29, 51, 52, 0.6) 0%, rgba(10, 45, 39, 0.9) 70%, #081a17 100%);
  z-index: 10;
}

.deck-container {
  width: 100%;
  max-width: var(--deck-max-width);
  height: 100%;
  max-height: calc(100vh - var(--header-height) - 80px);
  aspect-ratio: 16 / 9;
  position: relative;
  background: var(--chirani-teal-primary);
  border: 1px solid var(--border-dark-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-elevated);
  overflow: hidden;
}

/* Individual Slides in Deck Mode */
body.mode-deck .presentation-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  overflow-y: auto;
  overflow-x: hidden;
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  transform: scale(0.985) translateY(8px);
  padding: 3rem 4rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

body.mode-deck .presentation-slide.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: scale(1) translateY(0);
  z-index: 2;
}

body.mode-deck .presentation-slide.prev-slide {
  transform: scale(0.985) translateY(-8px);
}

/* Bottom Presentation Control Bar */
.deck-bottom-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--chirani-teal-translucent);
  border-top: 1px solid var(--border-dark-subtle);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2.5rem;
}

.deck-nav-keys {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: var(--text-2xs);
  color: var(--chirani-white-40);
  letter-spacing: 0.05em;
}

.kbd-badge {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-dark-subtle);
  padding: 0.2rem 0.45rem;
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  color: var(--chirani-white-70);
  font-size: 0.65rem;
}

.deck-arrows-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.deck-arrow-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-dark-subtle);
  color: var(--chirani-alabaster);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.deck-arrow-btn:hover:not(:disabled) {
  background: var(--chirani-gold-champagne);
  color: var(--chirani-teal-primary);
  border-color: var(--chirani-gold-champagne);
  transform: scale(1.05);
}

.deck-arrow-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

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

.slide-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.2);
  border: none;
  padding: 0;
  transition: all var(--transition-fast);
}

.slide-dot:hover {
  background: var(--chirani-gold-muted);
}

.slide-dot.active {
  width: 24px;
  background: var(--chirani-gold-champagne);
}

/* ==========================================================================
   MODE 2: CONTINUOUS EXECUTIVE SCROLL MODE
   ========================================================================== */
body.mode-scroll {
  height: auto;
  overflow-y: auto;
}

body.mode-scroll .deck-viewport {
  position: static;
  display: block;
  padding: 0;
  background: transparent;
}

body.mode-scroll .deck-container {
  max-width: 100%;
  height: auto;
  max-height: none;
  aspect-ratio: auto;
  border: none;
  border-radius: 0;
  box-shadow: none;
  background: transparent;
}

body.mode-scroll .presentation-slide {
  position: relative;
  inset: auto;
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: none;
  min-height: 100vh;
  padding: 6rem 4rem 5rem 4rem;
  border-bottom: 1px solid var(--border-dark-subtle);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

body.mode-scroll .deck-bottom-bar {
  display: none;
}

/* Quick Slide Drawer / Overview Modal */
.slide-drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(10, 20, 20, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-smooth);
}

.slide-drawer-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.slide-drawer {
  position: fixed;
  top: 0;
  right: -550px;
  width: 500px;
  max-width: 90vw;
  height: 100vh;
  background: var(--chirani-teal-primary);
  border-left: 1px solid var(--border-dark-gold);
  box-shadow: var(--shadow-elevated);
  z-index: 2001;
  transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
}

.slide-drawer-backdrop.open .slide-drawer {
  right: 0;
}

.drawer-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border-dark-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.drawer-title {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  color: var(--chirani-gold-champagne);
}

.drawer-close-btn {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.08);
  color: var(--chirani-white);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.drawer-close-btn:hover {
  background: var(--chirani-gold-champagne);
  color: var(--chirani-teal-primary);
}

.drawer-list {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.drawer-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-dark-subtle);
  color: var(--chirani-white-90);
  text-align: left;
  transition: all var(--transition-fast);
}

.drawer-item:hover {
  background: var(--chirani-gold-faint);
  border-color: var(--chirani-gold-muted);
  color: var(--chirani-gold-champagne);
  transform: translateX(4px);
}

.drawer-item.active {
  background: var(--chirani-gold-champagne);
  border-color: var(--chirani-gold-champagne);
  color: var(--chirani-teal-primary);
  font-weight: 600;
}

.drawer-item-num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  opacity: 0.6;
}

.drawer-item-title {
  font-size: var(--text-sm);
  font-weight: 500;
}

/* ==========================================================================
   RESPONSIVE DESIGN ADAPTATIONS
   ========================================================================== */
@media (max-width: 1200px) {
  :root {
    --header-height: 64px;
  }
  .deck-container {
    aspect-ratio: auto;
    max-height: calc(100vh - var(--header-height) - 70px);
  }
  body.mode-deck .presentation-slide {
    padding: 2.5rem 2.5rem;
  }
  .candidate-tag {
    display: none;
  }
}

@media (max-width: 768px) {
  .executive-header {
    padding: 0 1rem;
  }
  .header-center {
    display: none;
  }
  .mode-toggle-group {
    display: none;
  }
  body.mode-deck {
    height: auto;
    overflow-y: auto;
  }
  body.mode-deck .deck-viewport {
    position: static;
    padding: 1rem;
  }
  body.mode-deck .deck-container {
    max-height: none;
    border-radius: var(--radius-md);
  }
  body.mode-deck .presentation-slide {
    position: relative;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
    min-height: auto;
    padding: 2rem 1.25rem;
    display: none;
  }
  body.mode-deck .presentation-slide.active {
    display: flex;
  }
  .deck-bottom-bar {
    padding: 0 1rem;
  }
  .deck-nav-keys {
    display: none;
  }
}