/**
 * Platform Navigation Styles - Standalone for Paletteniffer
 * Copy this file to your Paletteniffer project's CSS directory
 */

/* CSS Variables - Add these to your main CSS file if not already present */
:root {
  --bg-header: #ffffff;
  --border-main: #e2e8f0;
  --text-main: #1e293b;
  --bg-sidebar: #f8fafc;
  --accent: #38bdf8;
}

.dark-mode {
  --bg-header: #1e293b;
  --border-main: #334155;
  --text-main: #f1f5f9;
  --bg-sidebar: #334155;
  --accent: #38bdf8;
}

/* Platform Navigation Container */
.platform-navigation {
  display: flex;
  align-items: center;
  position: relative;
  z-index: 1001;
}

.platform-nav-content {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Current App Indicator - Icon-only, matches .btn-primary exactly */
.current-app-indicator {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  background: #38bdf8;
  color: #ffffff;
  border: none;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  white-space: nowrap;
  min-width: 2.5rem;
  height: 2.5rem;
}

.current-app-indicator:hover:not(:disabled) {
  background: #0ea5e9;
  transform: translateY(-1px);
}

.current-app-indicator:active, .current-app-indicator:focus {
  background: #0ea5e9 !important;
  color: #fff !important;
  outline: none;
}

.dropdown-arrow {
  transition: transform 0.2s ease;
  color: #ffffff;
  flex-shrink: 0;
  opacity: 0.9;
}

.platform-navigation.dropdown-open .dropdown-arrow {
  transform: rotate(180deg);
}

.platform-navigation.dropdown-closing .dropdown-arrow {
  transform: rotate(0deg);
}

/* Platform Dropdown Container */
.platform-dropdown-container {
  position: relative;
}

/* Professional backdrop for dropdown */
.platform-dropdown-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: transparent;
  z-index: 1001;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.platform-navigation.dropdown-open .platform-dropdown-backdrop {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.platform-navigation.dropdown-closing .platform-dropdown-backdrop {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.platform-dropdown-menu {
  position: fixed;
  min-width: 240px;
  max-width: 280px;
  background: var(--bg-header);
  border: 1px solid var(--border-main);
  border-radius: 0.5rem;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.2s ease;
  z-index: 1002;
  overflow: hidden;
  pointer-events: none;
  max-width: 98vw;
  box-sizing: border-box;
  max-height: 90vh;
  overflow-y: auto;
}

.platform-navigation.dropdown-open .platform-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition: all 0.2s ease, transform 0.15s ease;
  pointer-events: auto;
}

/* Closing animation - reverse of opening */
.platform-navigation.dropdown-closing .platform-dropdown-menu {
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.2s ease, transform 0.15s ease;
  pointer-events: none;
}

.platform-navigation.dropdown-closing .platform-dropdown-menu.dropdown-up {
  transform: translateY(8px);
}

/* Platform Dropdown Items - Clean, minimal design */
.platform-dropdown-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 1.25rem;
  cursor: pointer;
  transition: all 0.15s ease;
  border-bottom: 1px solid var(--border-main);
  color: var(--text-main);
  text-decoration: none;
  position: relative;
}

.platform-dropdown-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.15s ease;
}

.platform-dropdown-item:hover::before {
  opacity: 1;
}

.platform-dropdown-item:last-child {
  border-bottom: none;
}

.platform-dropdown-item:hover:not(.current) {
  background: var(--bg-sidebar);
}

.platform-dropdown-item:focus {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

/* App Info */
.app-info {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  flex: 1;
  min-width: 0;
}

.app-name {
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--text-main);
  line-height: 1.2;
}

/* Navigation State */
.platform-navigation.navigating {
  pointer-events: none;
}
.platform-navigation.navigating .current-app-indicator {
  opacity: 0.7;
  cursor: wait;
}

/* Dropdown positioning variants */
.platform-dropdown-menu.dropdown-up {
  transform: translateY(8px);
}

.platform-navigation.dropdown-open .platform-dropdown-menu.dropdown-up {
  transform: translateY(0);
}

/* Dark Mode Styles - Matches .btn-primary exactly */
.dark-mode .current-app-indicator {
  color: #fff !important;
  background: linear-gradient(90deg, #0ea5e9 0%, #38bdf8 100%) !important;
  border: none;
  text-shadow: 0 1px 2px #23272f;
}

.dark-mode .dropdown-arrow {
  color: #ffffff;
}

.dark-mode .current-app-indicator:active, .dark-mode .current-app-indicator:focus {
  background: #38bdf8 !important;
  color: #fff !important;
  outline: none;
}

.dark-mode .platform-dropdown-menu {
  background: var(--bg-header);
  border-color: var(--border-main);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.dark-mode .platform-dropdown-item {
  color: var(--text-main);
  border-bottom-color: var(--border-main);
}

.dark-mode .platform-dropdown-item:hover:not(.current) {
  background: var(--bg-sidebar);
}

/* Smart Responsive Design - Consistent icon-only across all screens */
@media (max-width: 1024px) {
  .platform-dropdown-menu {
    min-width: 220px;
    max-width: 260px;
  }
}

@media (max-width: 768px) {
  .platform-dropdown-menu {
    min-width: 200px;
    max-width: 240px;
  }
  
  .platform-dropdown-item {
    padding: 0.75rem 1rem;
  }
}

@media (max-width: 480px) {
  .platform-dropdown-menu {
    min-width: 180px;
    max-width: 220px;
  }
  
  .platform-dropdown-item {
    padding: 0.625rem 0.875rem;
  }
  
  .app-name {
    font-size: 0.8125rem;
  }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  .current-app-indicator {
    border: 2px solid #1e3a8a;
  }
  
  .platform-dropdown-menu {
    border-width: 2px;
  }
  
  .platform-dropdown-item {
    border-bottom-width: 1px;
  }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  .current-app-indicator,
  .platform-dropdown-menu,
  .platform-dropdown-item,
  .dropdown-arrow {
    transition: none;
  }
  
  .current-app-indicator:hover:not(:disabled) {
    transform: none;
  }
}

/* Focus Visible Support */
.platform-dropdown-item:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Print Styles */
@media print {
  .platform-navigation {
    display: none;
  }
}