/**
 * Funky.QuickNav Styles
 * 
 * Floating navigation widget with FAB, actions, and position variants.
 * Theme-aware using --pro-* CSS custom properties.
 */

/* ==========================================================================
   CSS Custom Properties
   ========================================================================== */

:root {
  /* Layout */
  --quicknav-offset-x: 16px;
  --quicknav-offset-y: 16px;
  --quicknav-z-index: 1020;
  
  /* FAB - uses theme accent colors */
  --quicknav-fab-size: 56px;
  --quicknav-fab-bg: var(--pro-accent-primary, #2f81f7);
  --quicknav-fab-color: #ffffff;
  --quicknav-fab-shadow: var(--pro-shadow-lg, 0 4px 12px rgba(0, 0, 0, 0.25));
  --quicknav-fab-hover-bg: var(--pro-accent-primary-hover, #388bfd);
  
  /* Actions - uses theme surface/text colors */
  --quicknav-action-size: 44px;
  --quicknav-action-gap: 8px;
  --quicknav-action-bg: var(--pro-bg-elevated, #2d333b);
  --quicknav-action-color: var(--pro-text-primary, #e6edf3);
  --quicknav-action-shadow: var(--pro-shadow-md, 0 2px 8px rgba(0, 0, 0, 0.2));
  --quicknav-action-hover-bg: var(--pro-bg-tertiary, #21262d);
  
  /* Animation */
  --quicknav-animation-duration: 200ms;
  --quicknav-animation-easing: ease-out;
}

/* ==========================================================================
   Base Container
   ========================================================================== */

.quick-nav {
  position: fixed !important;
  display: flex;
  flex-direction: column-reverse;
  align-items: center;
  gap: var(--quicknav-action-gap);
  z-index: var(--quicknav-z-index);
  transition: opacity var(--quicknav-animation-duration) var(--quicknav-animation-easing),
              transform var(--quicknav-animation-duration) var(--quicknav-animation-easing);
}

/* ==========================================================================
   Position Variants
   ========================================================================== */

.quick-nav--bottom-right {
  bottom: var(--quicknav-offset-y);
  right: var(--quicknav-offset-x);
}

.quick-nav--bottom-left {
  bottom: var(--quicknav-offset-y);
  left: var(--quicknav-offset-x);
}

.quick-nav--top-right {
  top: var(--quicknav-offset-y);
  right: var(--quicknav-offset-x);
  flex-direction: column;
}

.quick-nav--top-left {
  top: var(--quicknav-offset-y);
  left: var(--quicknav-offset-x);
  flex-direction: column;
}

/* ==========================================================================
   FAB Button
   ========================================================================== */

.quick-nav__fab {
  width: var(--quicknav-fab-size);
  height: var(--quicknav-fab-size);
  min-width: var(--quicknav-fab-size);
  min-height: var(--quicknav-fab-size);
  border-radius: 50%;
  border: none;
  background: var(--quicknav-fab-bg);
  color: var(--quicknav-fab-color);
  box-shadow: var(--quicknav-fab-shadow);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: transform var(--quicknav-animation-duration) var(--quicknav-animation-easing),
              background var(--quicknav-animation-duration) var(--quicknav-animation-easing),
              box-shadow var(--quicknav-animation-duration) var(--quicknav-animation-easing);
}

.quick-nav__fab:hover {
  background: var(--quicknav-fab-hover-bg);
  transform: scale(1.05);
}

.quick-nav__fab:focus-visible {
  outline: var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color);
  outline-offset: var(--focus-ring-offset);
  box-shadow: var(--quicknav-fab-shadow), var(--focus-ring-shadow);
}

.quick-nav__fab:active {
  transform: scale(0.98);
}

/* ==========================================================================
   FAB Icon Animation
   ========================================================================== */

.quick-nav__fab-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.quick-nav__fab-icon--close {
  position: absolute;
  opacity: 0;
  transform: rotate(-90deg);
}

/* Expanded state: swap icons */
.quick-nav--expanded .quick-nav__fab-icon:not(.quick-nav__fab-icon--close) {
  opacity: 0;
  transform: rotate(90deg);
}

.quick-nav--expanded .quick-nav__fab-icon--close {
  opacity: 1;
  transform: rotate(0);
}

/* ==========================================================================
   Action List
   ========================================================================== */

.quick-nav__actions {
  display: flex;
  flex-direction: column-reverse;
  align-items: center;
  gap: var(--quicknav-action-gap);
  opacity: 0;
  transform: scale(0.8) translateY(10px);
  pointer-events: none;
  transition: opacity var(--quicknav-animation-duration) var(--quicknav-animation-easing),
              transform var(--quicknav-animation-duration) var(--quicknav-animation-easing);
}

/* Top positions: actions appear below FAB */
.quick-nav--top-right .quick-nav__actions,
.quick-nav--top-left .quick-nav__actions {
  flex-direction: column;
  transform: scale(0.8) translateY(-10px);
}

/* Expanded state */
.quick-nav--expanded .quick-nav__actions {
  opacity: 1;
  transform: scale(1) translateY(0);
  pointer-events: auto;
}

/* Collapsed state: hide completely */
.quick-nav--collapsed .quick-nav__actions {
  display: none;
}

/* ==========================================================================
   Action Button (placeholder for Phase 3)
   ========================================================================== */

.quick-nav__action {
  width: var(--quicknav-action-size);
  height: var(--quicknav-action-size);
  min-width: var(--quicknav-action-size);
  min-height: var(--quicknav-action-size);
  border-radius: 50%;
  border: none;
  background: var(--quicknav-action-bg);
  color: var(--quicknav-action-color);
  box-shadow: var(--quicknav-action-shadow);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: transform var(--quicknav-animation-duration) var(--quicknav-animation-easing),
              background var(--quicknav-animation-duration) var(--quicknav-animation-easing);
}

.quick-nav__action:hover {
  background: var(--quicknav-action-hover-bg);
  transform: scale(1.1);
}

.quick-nav__action:focus-visible {
  outline: var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color);
  outline-offset: var(--focus-ring-offset);
  box-shadow: var(--quicknav-action-shadow), var(--focus-ring-shadow);
}

.quick-nav__action:active {
  transform: scale(0.95);
}

/* Action icon */
.quick-nav__action-icon {
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ==========================================================================
   Action Labels (Tooltips)
   ========================================================================== */

.quick-nav__action-label {
  position: absolute;
  right: calc(100% + 8px);
  background: var(--quicknav-label-bg, var(--pro-bg-elevated, #2d333b));
  color: var(--quicknav-label-color, var(--pro-text-primary, #e6edf3));
  border: 1px solid var(--quicknav-label-border, var(--pro-border-color, #30363d));
  padding: 4px 10px;
  border-radius: var(--pro-radius-sm, 4px);
  font-size: var(--pro-font-size-xs, 0.75rem);
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--quicknav-animation-duration) var(--quicknav-animation-easing);
  box-shadow: var(--pro-shadow-sm, 0 1px 3px rgba(0, 0, 0, 0.1));
  z-index: 1;
}

.quick-nav__action:hover .quick-nav__action-label,
.quick-nav__action:focus-visible .quick-nav__action-label {
  opacity: 1;
}

/* Left-positioned QuickNav: flip tooltip to right side */
.quick-nav--bottom-left .quick-nav__action-label,
.quick-nav--top-left .quick-nav__action-label {
  right: auto;
  left: calc(100% + 8px);
}

/* ==========================================================================
   Action Badges (positioning overrides for Funky.Badge)
   ========================================================================== */

/* Override Funky.Badge positioning for QuickNav buttons */
.quick-nav__action .funky-badge {
  top: -4px;
  right: -4px;
}

.quick-nav__action .funky-badge--dot {
  top: -2px;
  right: -2px;
}

/* Disabled action state */
.quick-nav__action[disabled],
.quick-nav__action:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.quick-nav__action[disabled]:hover,
.quick-nav__action:disabled:hover {
  transform: none;
  background: var(--quicknav-action-bg);
}

/* ==========================================================================
   Visibility States
   ========================================================================== */

.quick-nav--hidden {
  opacity: 0;
  pointer-events: none;
}

.quick-nav--visible {
  opacity: 1;
  pointer-events: auto;
}

/* Hidden action (e.g., back-to-top when at top) */
.quick-nav__action--hidden {
  display: none;
}

/* ==========================================================================
   Visibility Animations (Phase 4)
   ========================================================================== */

/* Slide animation (default) - right positions */
.quick-nav--animation-slide.quick-nav--entering {
  animation: quicknav-slide-in-right var(--quicknav-animation-duration, 200ms) ease-out forwards;
}

.quick-nav--animation-slide.quick-nav--leaving {
  animation: quicknav-slide-out-right var(--quicknav-animation-duration, 200ms) ease-in forwards;
}

@keyframes quicknav-slide-in-right {
  from {
    opacity: 0;
    transform: translateX(100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes quicknav-slide-out-right {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(100%);
  }
}

/* Slide animation - left positions */
.quick-nav--bottom-left.quick-nav--animation-slide.quick-nav--entering,
.quick-nav--top-left.quick-nav--animation-slide.quick-nav--entering {
  animation-name: quicknav-slide-in-left;
}

.quick-nav--bottom-left.quick-nav--animation-slide.quick-nav--leaving,
.quick-nav--top-left.quick-nav--animation-slide.quick-nav--leaving {
  animation-name: quicknav-slide-out-left;
}

@keyframes quicknav-slide-in-left {
  from {
    opacity: 0;
    transform: translateX(-100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes quicknav-slide-out-left {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(-100%);
  }
}

/* Fade animation */
.quick-nav--animation-fade.quick-nav--entering {
  animation: quicknav-fade-in var(--quicknav-animation-duration, 200ms) ease-out forwards;
}

.quick-nav--animation-fade.quick-nav--leaving {
  animation: quicknav-fade-out var(--quicknav-animation-duration, 200ms) ease-in forwards;
}

@keyframes quicknav-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes quicknav-fade-out {
  from { opacity: 1; }
  to { opacity: 0; }
}

/* Scale animation */
.quick-nav--animation-scale.quick-nav--entering {
  animation: quicknav-scale-in var(--quicknav-animation-duration, 200ms) ease-out forwards;
}

.quick-nav--animation-scale.quick-nav--leaving {
  animation: quicknav-scale-out var(--quicknav-animation-duration, 200ms) ease-in forwards;
}

@keyframes quicknav-scale-in {
  from {
    opacity: 0;
    transform: scale(0.5);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes quicknav-scale-out {
  from {
    opacity: 1;
    transform: scale(1);
  }
  to {
    opacity: 0;
    transform: scale(0.5);
  }
}

/* ==========================================================================
   Theme Support
   ========================================================================== */

/* 
 * Theme support is handled via CSS custom properties in :root.
 * The --quicknav-* variables inherit from --pro-* theme variables,
 * which are set per-theme in themes.css (dark, light, even-funkier).
 * No additional overrides needed here.
 */

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

@media (prefers-reduced-motion: reduce) {
  .quick-nav,
  .quick-nav__fab,
  .quick-nav__fab-icon,
  .quick-nav__actions,
  .quick-nav__action,
  .quick-nav--entering,
  .quick-nav--leaving,
  .quick-nav__badge--animate {
    transition: none !important;
    animation: none !important;
  }

  /* Instant show/hide for reduced motion */
  .quick-nav--hidden {
    opacity: 0;
  }

  .quick-nav--visible {
    opacity: 1;
  }
}

/* ==========================================================================
   Size Variants (Phase 8)
   ========================================================================== */

.quick-nav--size-small {
  --quicknav-fab-size: 44px;
  --quicknav-action-size: 36px;
  --quicknav-action-gap: 6px;
}

.quick-nav--size-medium {
  --quicknav-fab-size: 56px;
  --quicknav-action-size: 44px;
  --quicknav-action-gap: 8px;
}

.quick-nav--size-large {
  --quicknav-fab-size: 64px;
  --quicknav-action-size: 52px;
  --quicknav-action-gap: 12px;
}

/* ==========================================================================
   Mobile Adjustments
   ========================================================================== */

@media (max-width: 768px) {
  .quick-nav {
    --quicknav-offset-x: 12px;
    --quicknav-offset-y: 12px;
  }
  
  /* Larger touch targets on mobile */
  .quick-nav__fab,
  .quick-nav__action {
    min-width: 48px;
    min-height: 48px;
  }
}

/* Safe area insets for notched devices */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
  .quick-nav--bottom-right,
  .quick-nav--bottom-left {
    bottom: calc(var(--quicknav-offset-y) + env(safe-area-inset-bottom, 0px));
  }
  
  .quick-nav--bottom-right,
  .quick-nav--top-right {
    right: calc(var(--quicknav-offset-x) + env(safe-area-inset-right, 0px));
  }
  
  .quick-nav--bottom-left,
  .quick-nav--top-left {
    left: calc(var(--quicknav-offset-x) + env(safe-area-inset-left, 0px));
  }
}

/* ==========================================================================
   QUICKNAV PLAYGROUND DEMO STYLES
   ========================================================================== */

.quick-nav-demo {
  padding: var(--pro-spacing-lg, 24px);
}

.quick-nav-demo__section {
  margin-bottom: var(--pro-spacing-xl, 32px);
}

.quick-nav-demo__section h3 {
  margin-bottom: var(--pro-spacing-md, 16px);
  font-size: 1rem;
  font-weight: 600;
  color: var(--pro-text-primary);
}

/* Demo container with sections */
.quick-nav-demo__container {
  border: 1px solid var(--pro-border-color);
  border-radius: var(--pro-border-radius, 8px);
  background: var(--pro-bg-secondary);
  max-height: 300px;
  overflow-y: auto;
  scroll-behavior: smooth;
}

.quick-nav-demo__content-section {
  padding: var(--pro-spacing-lg, 24px);
  border-bottom: 1px solid var(--pro-border-color);
}

.quick-nav-demo__content-section:last-child {
  border-bottom: none;
}

.quick-nav-demo__content-section h4 {
  margin: 0 0 var(--pro-spacing-sm, 8px) 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--pro-text-primary);
}

.quick-nav-demo__content-section p {
  margin: 0 0 var(--pro-spacing-sm, 8px) 0;
  color: var(--pro-text-secondary);
  line-height: 1.6;
}

.quick-nav-demo__content-section p:last-child {
  margin-bottom: 0;
}

/* Controls */
.quick-nav-demo__controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--pro-spacing-sm, 8px);
  margin-bottom: var(--pro-spacing-md, 16px);
}

/* State display */
.quick-nav-demo__state {
  background: var(--pro-bg-tertiary);
  border: 1px solid var(--pro-border-color);
  border-radius: var(--pro-border-radius, 8px);
  padding: var(--pro-spacing-md, 16px);
  font-size: 0.8125rem;
  font-family: var(--font-mono, monospace);
  color: var(--pro-text-secondary);
  margin: 0;
  overflow-x: auto;
}

/* Keyboard info */
.quick-nav-demo__keyboard-info {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--pro-spacing-sm, 8px);
}

.quick-nav-demo__key-row {
  display: flex;
  align-items: center;
  gap: var(--pro-spacing-sm, 8px);
  padding: var(--pro-spacing-sm, 8px) var(--pro-spacing-md, 12px);
  background: var(--pro-bg-secondary);
  border-radius: var(--pro-border-radius, 6px);
  font-size: 0.875rem;
}

.quick-nav-demo__key-row kbd {
  display: inline-block;
  padding: 4px 8px;
  background: var(--pro-bg-tertiary);
  border: 1px solid var(--pro-border-color);
  border-radius: 4px;
  font-family: var(--font-mono, monospace);
  font-size: 0.75rem;
  color: var(--pro-text-primary);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.quick-nav-demo__key-row span {
  color: var(--pro-text-secondary);
}

/* Event log */
.quick-nav-demo__log {
  background: var(--pro-bg-tertiary);
  border: 1px solid var(--pro-border-color);
  border-radius: var(--pro-border-radius, 8px);
  padding: var(--pro-spacing-md, 16px);
  font-size: 0.75rem;
  font-family: var(--font-mono, monospace);
  color: var(--pro-text-secondary);
  margin: 0;
  max-height: 200px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

/* Responsive */
@media (max-width: 768px) {
  .quick-nav-demo__keyboard-info {
    grid-template-columns: 1fr;
  }

  .quick-nav-demo__container {
    max-height: 200px;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .quick-nav-demo__container {
    border-width: 2px;
  }

  .quick-nav-demo__state,
  .quick-nav-demo__log {
    border-width: 2px;
  }

  .quick-nav-demo__key-row kbd {
    border-width: 2px;
  }
}