/**
 * Mobile Panel Styles
 * ===================
 * Animations and visual feedback for mobile panel navigation.
 * Used by mobile_panel_controller.js for swipe gestures.
 */

/* ========================================
 * Panel Transition Animations
 * ======================================== */

/* Exit animation - slide out left */
.mobile-panel--exit-left {
  animation: mobilePanelExitLeft 0.15s ease-out forwards;
}

/* Exit animation - slide out right */
.mobile-panel--exit-right {
  animation: mobilePanelExitRight 0.15s ease-out forwards;
}

/* Enter animation - slide in from left */
.mobile-panel--enter-left {
  animation: mobilePanelEnterLeft 0.25s ease-out forwards;
}

/* Enter animation - slide in from right */
.mobile-panel--enter-right {
  animation: mobilePanelEnterRight 0.25s ease-out forwards;
}

@keyframes mobilePanelExitLeft {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(-30%);
  }
}

@keyframes mobilePanelExitRight {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(30%);
  }
}

@keyframes mobilePanelEnterLeft {
  from {
    opacity: 0;
    transform: translateX(-30%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes mobilePanelEnterRight {
  from {
    opacity: 0;
    transform: translateX(30%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ========================================
 * Edge Bounce Feedback
 * ======================================== */

.mobile-panel--bounce-left {
  animation: mobilePanelBounceLeft 0.3s ease-out;
}

.mobile-panel--bounce-right {
  animation: mobilePanelBounceRight 0.3s ease-out;
}

@keyframes mobilePanelBounceLeft {
  0% {
    transform: translateX(0);
  }
  30% {
    transform: translateX(15px);
  }
  60% {
    transform: translateX(-5px);
  }
  100% {
    transform: translateX(0);
  }
}

@keyframes mobilePanelBounceRight {
  0% {
    transform: translateX(0);
  }
  30% {
    transform: translateX(-15px);
  }
  60% {
    transform: translateX(5px);
  }
  100% {
    transform: translateX(0);
  }
}

/* ========================================
 * Swipe Progress Indicator
 * ======================================== */

.mobile-swipe-indicator {
  --swipe-progress: 0;

  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-accent-primary);
  border-radius: var(--radius-lg);
  color: var(--color-accent-primary);
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  opacity: calc(var(--swipe-progress) * 0.9);
  z-index: var(--z-notification);
  pointer-events: none;
  box-shadow: var(--shadow-lg);
  transition: opacity 0.1s ease-out;
}

.mobile-swipe-indicator--left {
  right: var(--space-4);
}

.mobile-swipe-indicator--right {
  left: var(--space-4);
}

.mobile-swipe-indicator--disabled {
  border-color: var(--color-text-muted);
  color: var(--color-text-muted);
  opacity: calc(var(--swipe-progress) * 0.3);
}

/* Icon arrows */
.mobile-swipe-indicator--left::before {
  content: '→';
  margin-right: var(--space-2);
}

.mobile-swipe-indicator--right::before {
  content: '←';
  margin-right: var(--space-2);
}

/* ========================================
 * Touch Feedback States
 * ======================================== */

/* Active touch state on buttons */
@media (hover: none) and (pointer: coarse) {
  .mobile-panel-switcher__btn:active {
    transform: scale(0.95);
    background: var(--color-bg-elevated);
  }

  .mobile-panel-switcher__btn.active:active {
    transform: scale(0.95);
  }
}

/* ========================================
 * Pull-to-Navigate Hint
 * ======================================== */

.mobile-nav-hint {
  position: fixed;
  bottom: calc(var(--space-4) + env(safe-area-inset-bottom, 0px));
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-2) var(--space-4);
  background: rgba(0, 0, 0, 0.7);
  border-radius: var(--radius-pill);
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.mobile-nav-hint--visible {
  opacity: 1;
}

.mobile-nav-hint__icon {
  display: inline-block;
  margin: 0 var(--space-1);
}

/* ========================================
 * Panel Pagination Dots
 * ======================================== */

.mobile-panel-dots {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2);
}

.mobile-panel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-border-default);
  transition: background 0.2s ease;
}

.mobile-panel-dot--active {
  width: 24px;
  border-radius: var(--radius-pill);
  background: var(--color-accent-primary);
}

/* ========================================
 * Safe Area Support (Notched Phones)
 * ======================================== */

@supports (padding: env(safe-area-inset-bottom)) {
  .mobile-panel-switcher {
    padding-bottom: calc(var(--space-2) + env(safe-area-inset-bottom, 0px));
  }

  /* Ensure modals don't get cut off */
  .mobile-mode .detail-modal,
  .mobile-mode .unified-modal {
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }
}

/* ========================================
 * Landscape Orientation
 * ======================================== */

@media (orientation: landscape) and (max-height: 500px) {
  .mobile-panel-switcher {
    padding: 2px 8px;
  }

  .mobile-panel-switcher__btn {
    min-height: 36px;
    padding: 4px 12px;
    font-size: var(--font-size-sm);
  }

  .mobile-panel-switcher__icon {
    display: none; /* Hide icons in cramped landscape mode */
  }
}

/* ========================================
 * Reduced Motion Support
 * ======================================== */

@media (prefers-reduced-motion: reduce) {
  .mobile-panel--exit-left,
  .mobile-panel--exit-right,
  .mobile-panel--enter-left,
  .mobile-panel--enter-right,
  .mobile-panel--bounce-left,
  .mobile-panel--bounce-right {
    animation: none;
  }

  .mobile-swipe-indicator {
    transition: none;
    opacity: 0.8;
  }
}

/* ========================================
 * High Contrast Mode
 * ======================================== */

@media (prefers-contrast: high) {
  .mobile-panel-switcher__btn {
    border-width: 2px;
  }

  .mobile-panel-switcher__btn.active {
    border-color: white;
    outline: 2px solid white;
    outline-offset: 2px;
  }

  .mobile-swipe-indicator {
    border-width: 2px;
  }
}
/**
 * Mobile Bottom-Sheet Panel Overlay (#5123)
 * ==========================================
 * Non-narrative panels open as bottom-sheet overlays covering ~70vh.
 * The narrative behind remains visible at the top (~30vh).
 * Slides UP from the bottom (not from the side) to match native mobile patterns.
 * Panel content is unchanged; only the container changes.
 *
 * Only active on mobile (≤768px). Desktop is unaffected.
 * Input bar remains fixed at the bottom and is always visible (#5119).
 *
 * Z-index order (bottom → top):
 *   narrative base (z-panel 100) < backdrop (z-overlay 200) < sheet (z-sheet 300)
 *   < input-bar (z-sheet 300 + 1 = 301 via _input.css bump) < FAB (z-sticky 400)
 *
 * Sheet geometry: height 70vh from bottom. Input bar (position:fixed, bottom:0)
 * occupies ~56px at the bottom of the viewport. The sheet sits ABOVE the input
 * bar in z-index order but its content area ends above the input bar in screen
 * space because the input bar is drawn over it.
 *
 * Z-index assignment:
 *   backdrop = --z-overlay (200): above panels, below sheet
 *   sheet    = --z-sheet   (300): above backdrop
 *   input    = --z-sheet   (300) at mobile — same layer BUT the input is declared
 *              AFTER the sheet in the cascade, so it paints on top. As a safety
 *              net the input.css rule is annotated to maintain this ordering.
 */

/* ========================================
 * Backdrop
 * Semi-transparent overlay behind the sheet, above the narrative
 * ======================================== */

.mobile-bottom-sheet-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: var(--z-overlay);  /* 200 — above panels (100), below sheet (300) */
  opacity: 0;
  transition: opacity 0.25s ease;
  -webkit-tap-highlight-color: transparent;
}

.mobile-bottom-sheet-backdrop.open {
  opacity: 1;
}

/* ========================================
 * Bottom-Sheet Overlay (~70vh, slides up from bottom)
 * The sheet covers ~70% of the screen; ~30% of narrative is visible above.
 * The fixed input bar sits visually BELOW the sheet (below 30vh from bottom).
 * ======================================== */

.mobile-bottom-sheet {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  /* 70vh covers most of the screen while leaving narrative strip visible above.
     Use dvh (dynamic viewport height) on Safari to account for browser chrome. */
  height: 70vh;
  height: 70dvh;
  /* Sheet sits above backdrop (z-overlay 200). Input bar also at z-sheet (300)
     but paints on top via cascade order — see _input.css annotation. */
  z-index: var(--z-sheet);  /* 300 */
  /* Start off-screen below, translate up to reveal */
  transform: translateY(100%);
  transition: transform 0.25s ease;
  background: var(--color-bg-primary);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;  /* Rounded top corners */
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.4);
  overflow: hidden;
  flex-direction: column;
  /* Safe area: bottom padding for notched phones (home indicator) */
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

.mobile-bottom-sheet.open {
  transform: translateY(0);
}

/* Swipe-down-to-close: JS sets --swipe-offset (positive = moving down toward closed) */
.mobile-bottom-sheet.swiping {
  transition: none;
  transform: translateY(var(--swipe-offset, 0px));
}

/* ========================================
 * Sheet Header
 * Drag handle + title + close button at the top of the bottom sheet.
 * Tapping the header row OR the back button dismisses the sheet.
 * ======================================== */

.mobile-bottom-sheet__back-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border-default);
  flex-shrink: 0;
  /* Visual height stays compact (36px) but tap target is 44px via padding */
  min-height: 44px;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  -webkit-tap-highlight-color: transparent;
}

.mobile-bottom-sheet__back-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  min-width: 44px;
  min-height: 44px;
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  color: var(--color-accent-primary);
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: background var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
}

.mobile-bottom-sheet__back-btn:active {
  background: var(--color-bg-tertiary);
  transform: scale(0.96);
}

.mobile-bottom-sheet__back-arrow {
  font-size: var(--font-size-lg);
  line-height: 1;
}

.mobile-bottom-sheet__panel-title {
  flex: 1;
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ========================================
 * Drag Handle
 * Visible affordance above the header to indicate bottom-sheet dismissal.
 * Tapping it (44px touch target via padding) triggers closeBottomSheet().
 * ======================================== */

.mobile-bottom-sheet__handle {
  display: block;
  /* Center the pill */
  text-align: center;
  padding: var(--space-2) 0 var(--space-1);
  cursor: pointer;
  flex-shrink: 0;
  /* The ::after pseudo creates the visual pill */
}

.mobile-bottom-sheet__handle::after {
  content: '';
  display: inline-block;
  width: 36px;
  height: 4px;
  background: var(--color-text-disabled);
  border-radius: 2px;
  opacity: 0.5;
}

/* ========================================
 * Panel Content
 * Scrollable area for the panel content
 * ======================================== */

.mobile-bottom-sheet__content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  min-height: 0;
  -webkit-overflow-scrolling: touch;
}

/* Ensure panels inside the overlay fill it properly */
.mobile-bottom-sheet__content .grid-panel,
.mobile-bottom-sheet__content .split-panel {
  display: flex;
  flex: 1;
  opacity: 1;
  transform: none;
  min-height: 100%;
}

/* Injected content from inline panel pop-out */
.mobile-bottom-sheet__injected {
  padding: var(--spacing-md);
  min-height: 100%;
}

/* Hide panel headers inside overlay (the back header is enough) */
.mobile-bottom-sheet__content .grid-panel__header,
.mobile-bottom-sheet__content .split-panel__header {
  display: none;
}

/* ========================================
 * Only display on mobile phones (≤768px)
 * Tablet/desktop use the full split-panel layout and do not need bottom sheets.
 * ======================================== */

@media (max-width: 768px) {
  .mobile-bottom-sheet {
    display: flex;
  }

  /* Backdrop: always present in DOM for transition continuity but MUST NOT
     block touch events when closed. Without pointer-events:none, the invisible
     backdrop (opacity:0, position:fixed, inset:0) intercepts ALL taps (#1268). */
  .mobile-bottom-sheet-backdrop {
    display: block;
    pointer-events: none;
  }

  .mobile-bottom-sheet-backdrop.open {
    pointer-events: auto;
  }
}

@media (min-width: 769px) {
  .mobile-bottom-sheet,
  .mobile-bottom-sheet-backdrop {
    display: none !important;
  }
}

/* ========================================
 * Reduced Motion
 * ======================================== */

@media (prefers-reduced-motion: reduce) {
  .mobile-bottom-sheet {
    transition: none;
  }

  .mobile-bottom-sheet-backdrop {
    transition: none;
  }
}
/**
 * Hamburger Menu - Mobile Escape Hatches
 * =======================================
 * Slide-out navigation menu for mobile users providing quick access
 * to Settings, Help, Profile, Tech Support, and Return to Lobby.
 *
 * Hidden on desktop (>=768px). Slides in from the right edge.
 */

/* ========================================
 * Hamburger Trigger Button
 * ======================================== */

.hamburger-menu__trigger {
  display: none;
  position: fixed;
  top: var(--space-2);
  right: var(--space-2);
  right: calc(var(--space-2) + env(safe-area-inset-right, 0px));
  z-index: calc(var(--z-modal) + 10);
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast),
              border-color var(--transition-fast);
}

.hamburger-menu__trigger:hover,
.hamburger-menu__trigger:active {
  background: var(--color-bg-elevated);
  border-color: var(--color-accent-primary);
}

.hamburger-menu__trigger:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.hamburger-menu__trigger[aria-expanded="true"] {
  background: var(--color-bg-elevated);
  border-color: var(--color-accent-primary);
}

/* ========================================
 * Backdrop Overlay
 * ======================================== */

.hamburger-menu__backdrop {
  display: none;
  position: fixed;
  inset: 0;
  /* #2089: Explicit fallback ensures full-screen dark backdrop even if
     --overlay-heavy token is missing or unresolved. */
  background: var(--overlay-heavy, rgba(0, 0, 0, 0.6));
  z-index: calc(var(--z-modal) + 11);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal, 0.2s) ease;
  -webkit-tap-highlight-color: transparent;
  /* Backdrop blur adds depth separation between menu and content */
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
}

.hamburger-menu__backdrop--open {
  opacity: 1;
  pointer-events: auto;
}

/* ========================================
 * Slide-out Panel
 * ======================================== */

.hamburger-menu__panel {
  display: none;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 280px;
  max-width: 85vw;
  z-index: calc(var(--z-modal) + 12);
  background: var(--color-bg-primary);
  border-left: 1px solid var(--color-border-default);
  transform: translateX(100%);
  transition: transform var(--duration-normal) var(--ease-out);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding-right: env(safe-area-inset-right, 0px);
  flex-direction: column;
}

.hamburger-menu__panel--open {
  transform: translateX(0);
}

/* ========================================
 * Panel Header
 * ======================================== */

.hamburger-menu__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-4);
  padding-top: calc(var(--space-4) + env(safe-area-inset-top, 0px));
  border-bottom: 1px solid var(--color-border-subtle);
}

.hamburger-menu__title {
  font-family: var(--font-mono);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0;
}

.hamburger-menu__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-text-muted);
  font-size: 20px;
  cursor: pointer;
  transition: color var(--transition-fast),
              background var(--transition-fast);
}

.hamburger-menu__close:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-hover);
}

.hamburger-menu__close:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

/* ========================================
 * Menu Items
 * ======================================== */

.hamburger-menu__items {
  list-style: none;
  margin: 0;
  padding: var(--space-2) 0;
}

.hamburger-menu__item {
  margin: 0;
  padding: 0;
}

.hamburger-menu__item-btn {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: none;
  background: transparent;
  color: var(--color-text-primary);
  font-family: var(--font-mono);
  font-size: var(--font-size-base);
  text-align: left;
  cursor: pointer;
  transition: background var(--transition-fast),
              color var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
}

.hamburger-menu__item-btn:hover,
.hamburger-menu__item-btn:active {
  background: var(--color-bg-hover);
}

.hamburger-menu__item-btn:focus-visible {
  outline: none;
  box-shadow: inset var(--focus-ring);
}

.hamburger-menu__item-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--color-text-secondary);
}

.hamburger-menu__item-icon svg {
  width: 18px;
  height: 18px;
}

.hamburger-menu__item-label {
  flex: 1;
  min-width: 0;
}

/* Separator between groups */
.hamburger-menu__separator {
  height: 1px;
  background: var(--color-border-subtle);
  margin: var(--space-2) var(--space-4);
}

/* Danger/exit items (Return to Lobby) */
.hamburger-menu__item-btn--danger {
  color: var(--color-accent-warning);
}

.hamburger-menu__item-btn--danger .hamburger-menu__item-icon {
  color: var(--color-accent-warning);
}

/* Warning items (Restart Character Creation) */
.hamburger-menu__item-btn--warning {
  color: var(--color-accent-gold, #f0a500);
}

.hamburger-menu__item-btn--warning .hamburger-menu__item-icon {
  color: var(--color-accent-gold, #f0a500);
}

/* Room-conditional items: hidden by default, JS reveals when in matching room */
[data-room-visible] {
  display: none;
}

[data-room-visible].hamburger-menu__item--visible {
  display: list-item;
}

/* ========================================
 * Mobile-only Visibility
 * ======================================== */

@media (max-width: 767px) {
  .hamburger-menu__trigger {
    display: flex;
  }

  .hamburger-menu__backdrop {
    display: block;
  }

  .hamburger-menu__panel {
    display: flex;
  }
}

/* Desktop: ensure everything stays hidden */
@media (min-width: 768px) {
  .hamburger-menu__trigger,
  .hamburger-menu__backdrop,
  .hamburger-menu__panel {
    display: none;
  }
}

/* ========================================
 * Reduced Motion
 * ======================================== */

@media (prefers-reduced-motion: reduce) {
  .hamburger-menu__panel {
    transition: none;
  }

  .hamburger-menu__backdrop {
    transition: none;
  }

  .hamburger-menu__trigger {
    transition: none;
  }

  .hamburger-menu__item-btn {
    transition: none;
  }
}
/*
 * Terminal D&D - Mobile-Critical Stylesheet
 * ==========================================
 * Standalone bundle for mobile-specific components. Loaded as its own <link>
 * in terminal.html.erb so mobile users receive this CSS immediately after
 * terminal_2.css.
 *
 * Phase 0 of the CSS remediation plan (#5550). The Phase 1 brace-balance
 * truncation fix (#5551) restored _mobile_accessibility_fixes to terminal_2.css,
 * so it no longer lives here. The three mobile component partials below are
 * kept in this bundle as they are legitimately mobile-first components.
 *
 * Components included:
 *   _mobile_panel             — swipe-gesture animation + panel nav dots
 *   _mobile_bottom_sheet      — bottom-sheet overlay (≤768px only)
 *   _hamburger_menu           — slide-out nav menu (mobile escape hatches)
 *
 * Note: _mobile_accessibility_fixes now lives at the end of terminal_2.css
 * (restored by #5551). This bundle must still load AFTER terminal.css and
 * terminal_2.css (relies on CSS custom properties defined in _tokens.css).
 *
 * ⚠️  ORDERING: This bundle must be loaded AFTER terminal.css and terminal_2.css
 *     in the layout (it relies on CSS custom properties defined in _tokens.css).
 */