/**
 * Responsive Sidebar Styles
 * モバイルとデスクトップに対応したサイドバー
 */

/* ========================================
   Variables
   ======================================== */
:root {
  --sidebar-width: 280px;
  --sidebar-bg: rgba(15, 23, 42, 0.95);
  --sidebar-border: rgba(255, 255, 255, 0.1);
  --transition-speed: 0.3s;
  --z-sidebar: 1000;
  --z-overlay: 999;
  --z-menu-toggle: 1001;
}

/* ========================================
   Base Layout
   ======================================== */
.app-layout {
  display: flex;
  min-height: 100vh;
  position: relative;
}

/* ========================================
   Sidebar
   ======================================== */
.sidebar {
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--z-sidebar);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  transition: transform var(--transition-speed) ease-in-out;
  backdrop-filter: blur(10px);
}

/* Scrollbar styling */
.sidebar::-webkit-scrollbar {
  width: 6px;
}

.sidebar::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
}

.sidebar::-webkit-scrollbar-thumb {
  background: rgba(0, 255, 255, 0.3);
  border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 255, 255, 0.5);
}

/* ========================================
   Sidebar Header
   ======================================== */
.sidebar-header {
  padding: 2rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid var(--sidebar-border);
  flex-shrink: 0;
}

.sidebar-logo {
  width: 48px;
  height: 48px;
  object-fit: contain;
  flex-shrink: 0;
}

.sidebar-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: white;
  font-family: 'Space Grotesk', sans-serif;
  line-height: 1.2;
}

.sidebar-subtitle {
  font-size: 0.625rem;
  color: var(--primary);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ========================================
   Navigation
   ======================================== */
.sidebar-nav {
  flex: 1;
  padding: 1rem 0;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1.5rem;
  color: var(--muted-foreground);
  text-decoration: none;
  transition: all 0.2s ease;
  position: relative;
  font-size: 0.875rem;
  font-family: 'JetBrains Mono', monospace;
}

.nav-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--primary);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.nav-item:hover {
  background-color: rgba(255, 255, 255, 0.05);
  color: white;
}

.nav-item.active {
  color: var(--primary);
  background-color: rgba(0, 255, 255, 0.1);
}

.nav-item.active::before {
  opacity: 1;
}

.nav-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* ========================================
   Sidebar Footer
   ======================================== */
.sidebar-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--sidebar-border);
  flex-shrink: 0;
}

.status-panel {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.status-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
}

.status-label {
  color: var(--muted-foreground);
  font-family: 'JetBrains Mono', monospace;
}

.status-value {
  color: white;
  font-weight: 600;
  font-family: 'Space Grotesk', sans-serif;
}

.status-value.status-critical {
  color: var(--destructive);
}

.status-value.status-warning {
  color: rgb(249, 115, 22);
}

.status-value.status-active {
  color: rgb(16, 185, 129);
}

/* ========================================
   Main Content
   ======================================== */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  transition: margin-left var(--transition-speed) ease-in-out;
}

/* ========================================
   Mobile Menu Toggle
   ======================================== */
.mobile-menu-toggle {
  display: none;
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: var(--z-menu-toggle);
  width: 48px;
  height: 48px;
  background: var(--sidebar-bg);
  border: 1px solid var(--sidebar-border);
  border-radius: 0.25rem;
  color: var(--primary);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  backdrop-filter: blur(10px);
}

.mobile-menu-toggle:hover {
  background: rgba(0, 255, 255, 0.1);
  border-color: var(--primary);
}

.mobile-menu-toggle:active {
  transform: scale(0.95);
}

/* ========================================
   Mobile Overlay
   ======================================== */
.mobile-menu-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: var(--z-overlay);
  opacity: 0;
  transition: opacity var(--transition-speed) ease-in-out;
  pointer-events: none;
  backdrop-filter: blur(2px);
}

.mobile-menu-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

/* ========================================
   Responsive Breakpoints
   ======================================== */

/* Tablet and below (1024px) */
@media (max-width: 1024px) {
  :root {
    --sidebar-width: 260px;
  }
  
  .sidebar-header {
    padding: 1.5rem 1.25rem;
  }
  
  .nav-item {
    padding: 0.75rem 1.25rem;
  }
}

/* Mobile (768px and below) */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  
  .sidebar.active {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.5);
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .mobile-menu-overlay {
    display: block;
  }
  
  /* Adjust header spacing for mobile menu button */
  .container {
    padding-top: 4rem;
  }
}

/* Small mobile (480px and below) */
@media (max-width: 480px) {
  :root {
    --sidebar-width: 85vw;
  }
  
  .sidebar-header {
    padding: 1.25rem 1rem;
  }
  
  .sidebar-logo {
    width: 40px;
    height: 40px;
  }
  
  .sidebar-title {
    font-size: 1.125rem;
  }
  
  .sidebar-subtitle {
    font-size: 0.5625rem;
  }
  
  .nav-item {
    padding: 0.75rem 1rem;
    font-size: 0.8125rem;
  }
  
  .nav-icon {
    width: 18px;
    height: 18px;
  }
  
  .sidebar-footer {
    padding: 1.25rem 1rem;
  }
  
  .mobile-menu-toggle {
    width: 44px;
    height: 44px;
    top: 0.75rem;
    left: 0.75rem;
  }
}

/* ========================================
   Animations
   ======================================== */
@keyframes slideInFromLeft {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(0);
  }
}

@keyframes slideOutToLeft {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-100%);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

/* ========================================
   Accessibility
   ======================================== */
.mobile-menu-toggle:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.nav-item:focus {
  outline: 2px solid var(--primary);
  outline-offset: -2px;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  .sidebar,
  .main-content,
  .mobile-menu-overlay,
  .mobile-menu-toggle {
    transition: none;
  }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
  .sidebar,
  .mobile-menu-toggle,
  .mobile-menu-overlay {
    display: none;
  }
  
  .main-content {
    margin-left: 0;
  }
}

/* ========================================
   Dark Mode Support (already dark by default)
   ======================================== */
@media (prefers-color-scheme: light) {
  /* If needed, add light mode overrides here */
  /* This app is designed for dark mode, so light mode is optional */
}

/* ========================================
   High Contrast Mode
   ======================================== */
@media (prefers-contrast: high) {
  .sidebar {
    border-right: 2px solid white;
  }
  
  .nav-item.active::before {
    width: 4px;
  }
  
  .sidebar-header,
  .sidebar-footer {
    border-color: rgba(255, 255, 255, 0.3);
  }
}