/* style.css - Professional Meeting Scheduling Platform */
/* ===== DESIGN SYSTEM & VARIABLES ===== */
:root {
  /* Color Palette - Professional & Accessible */
  --primary-50: #eff6ff;
  --primary-100: #dbeafe;
  --primary-200: #bfdbfe;
  --primary-300: #93c5fd;
  --primary-400: #60a5fa;
  --primary-500: #3b82f6;
  --primary-600: #2563eb;
  --primary-700: #1d4ed8;
  --primary-800: #1e40af;
  --primary-900: #1e3a8a;
  
  --secondary-50: #f0fdf4;
  --secondary-100: #dcfce7;
  --secondary-200: #bbf7d0;
  --secondary-500: #10b981;
  --secondary-600: #059669;
  --secondary-700: #047857;
  
  --accent-50: #fef2f2;
  --accent-100: #fee2e2;
  --accent-500: #ef4444;
  --accent-600: #dc2626;
  --accent-700: #b91c1c;
  
  --neutral-50: #f8fafc;
  --neutral-100: #f1f5f9;
  --neutral-200: #e2e8f0;
  --neutral-300: #cbd5e1;
  --neutral-400: #94a3b8;
  --neutral-500: #64748b;
  --neutral-600: #475569;
  --neutral-700: #334155;
  --neutral-800: #1e293b;
  --neutral-900: #0f172a;
  
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  --info: #3b82f6;
  
  /* Semantic Colors */
  --bg-primary: #ffffff;
  --bg-secondary: var(--neutral-50);
  --bg-tertiary: var(--neutral-100);
  --bg-overlay: rgba(15, 23, 42, 0.8);
  
  --text-primary: var(--neutral-800);
  --text-secondary: var(--neutral-600);
  --text-muted: var(--neutral-500);
  --text-inverse: #ffffff;
  
  --border-light: var(--neutral-200);
  --border-medium: var(--neutral-300);
  --border-dark: var(--neutral-400);
  
  /* Typography Scale - Modern Type Scale */
  --text-xs: 0.75rem;      /* 12px */
  --text-sm: 0.875rem;     /* 14px */
  --text-base: 1rem;       /* 16px */
  --text-lg: 1.125rem;     /* 18px */
  --text-xl: 1.25rem;      /* 20px */
  --text-2xl: 1.5rem;      /* 24px */
  --text-3xl: 1.875rem;    /* 30px */
  --text-4xl: 2.25rem;     /* 36px */
  --text-5xl: 3rem;        /* 48px */
  
  /* Font Weights */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  
  /* Line Heights */
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.6;
  --leading-relaxed: 1.75;
  
  /* Spacing Scale - 8px grid system */
  --space-0: 0rem;         /* 0px */
  --space-1: 0.25rem;      /* 4px */
  --space-2: 0.5rem;       /* 8px */
  --space-3: 0.75rem;      /* 12px */
  --space-4: 1rem;         /* 16px */
  --space-5: 1.25rem;      /* 20px */
  --space-6: 1.5rem;       /* 24px */
  --space-8: 2rem;         /* 32px */
  --space-10: 2.5rem;      /* 40px */
  --space-12: 3rem;        /* 48px */
  --space-16: 4rem;        /* 64px */
  --space-20: 5rem;        /* 80px */
  
  /* Layout */
  --navbar-height: 4.5rem;     /* 72px */
  --navbar-height-scrolled: 4rem; /* 64px */
  --footer-height: auto;
  --container-max-width: 80rem; /* 1280px */
  --container-padding: clamp(1rem, 5vw, 3rem);
  --section-spacing: clamp(3rem, 8vw, 6rem);
  
  /* Effects */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-base: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  --radius-sm: 0.375rem;
  --radius-base: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-2xl: 2rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  --gradient-secondary: linear-gradient(135deg, var(--secondary-500), var(--secondary-600));
  --gradient-accent: linear-gradient(135deg, var(--accent-500), var(--accent-600));
  --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
  --gradient-overlay: linear-gradient(180deg, rgba(0, 0, 0, 0.3), transparent);
}

/* ===== MODERN CSS RESET & BASE STYLES ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  height: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  min-height: 100vh;
  font-family: 'Inter', 'SF Pro Display', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background: var(--gradient-hero);
  background-attachment: fixed;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* ===== ENHANCED TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-semibold);
  line-height: var(--leading-tight);
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

h1 {
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  letter-spacing: -0.025em;
}

h2 {
  font-size: var(--text-3xl);
  letter-spacing: -0.025em;
}

h3 {
  font-size: var(--text-2xl);
}

h4 {
  font-size: var(--text-xl);
}

h5 {
  font-size: var(--text-lg);
}

h6 {
  font-size: var(--text-base);
}

p {
  margin-bottom: var(--space-4);
  color: var(--text-secondary);
}

a {
  color: var(--primary-600);
  text-decoration: none;
  transition: all var(--transition-fast);
}

a:hover {
  color: var(--primary-700);
}

/* ===== PREMIUM NAVIGATION SYSTEM ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--navbar-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  z-index: 1000;
  padding: 0 var(--container-padding);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar.scrolled {
  height: var(--navbar-height-scrolled);
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-lg);
  border-bottom-color: var(--border-light);
  backdrop-filter: blur(30px) saturate(200%);
}

/* Premium Logo Design */
.logo {
  display: flex;
  align-items: center;
}

.logo a {
  color: var(--primary-600);
  text-decoration: none;
  font-weight: var(--font-bold);
  font-size: var(--text-2xl);
  letter-spacing: -0.025em;
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  position: relative;
}

.logo a::before {
  content: "📅";
  font-size: var(--text-2xl);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 2px 4px rgba(59, 130, 246, 0.3));
}

.logo a:hover {
  color: var(--primary-700);
  transform: translateY(-1px);
}

.logo a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}

.logo a:hover::after {
  width: 100%;
}

/* Navigation Controls */
.nav-controls {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* Premium Credits Display */
.credits-link {
  background: var(--gradient-secondary);
  color: var(--text-inverse);
  font-weight: var(--font-semibold);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-xl);
  text-decoration: none;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  border: 1px solid rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.credits-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left var(--transition-slow);
}

.credits-link:hover::before {
  left: 100%;
}

.credits-link:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  background: var(--gradient-secondary);
}

/* Premium Navigation Links */
.desktop-menu {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: var(--font-medium);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  position: relative;
  font-size: var(--text-sm);
  overflow: hidden;
}

.nav-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0.1;
  transition: left var(--transition-base);
}

.nav-link:hover::before {
  left: 0;
}

.nav-link:hover {
  color: var(--primary-700);
  transform: translateY(-1px);
}

/* Enhanced Dropdown Components */
.dropdown {
  position: relative;
}

.dropbtn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-xl);
  cursor: pointer;
  font-weight: var(--font-medium);
  color: var(--text-primary);
  transition: all var(--transition-base);
  font-size: var(--text-sm);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.dropbtn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0.1;
  transition: left var(--transition-base);
}

.dropbtn:hover::before {
  left: 0;
}

.dropbtn:hover {
  background: var(--primary-50);
  color: var(--primary-600);
  border-color: var(--primary-200);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.dropdown-content {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  width: 16rem;
  background: var(--bg-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  z-index: 1001;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px) scale(0.95);
  transition: all var(--transition-base);
  overflow: hidden;
  border: 1px solid var(--border-light);
  backdrop-filter: blur(20px);
}

.dropdown-content.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.dropdown-content a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  color: var(--text-primary);
  text-decoration: none;
  transition: var(--transition-fast);
  border-bottom: 1px solid var(--border-light);
  font-size: var(--text-sm);
  position: relative;
  overflow: hidden;
}

.dropdown-content a:last-child {
  border-bottom: none;
}

.dropdown-content a::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0.05;
  transition: left var(--transition-base);
}

.dropdown-content a:hover::before {
  left: 0;
}

.dropdown-content a:hover {
  background: var(--primary-50);
  color: var(--primary-600);
  padding-left: var(--space-5);
}

/* ===== PREMIUM NOTIFICATION SYSTEM ===== */
.bell-dropdown {
  position: relative;
}

.bell-btn {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(10px);
}

.bell-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-primary);
  opacity: 0;
  border-radius: inherit;
  transition: opacity var(--transition-base);
}

.bell-btn:hover::before {
  opacity: 0.1;
}

.bell-btn:hover {
  background: var(--primary-50);
  border-color: var(--primary-200);
  transform: translateY(-2px) scale(1.05);
  box-shadow: var(--shadow-lg);
}

.bell-btn svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--text-primary);
  position: relative;
  z-index: 1;
  transition: transform var(--transition-base);
}

.bell-btn:hover svg {
  transform: scale(1.1);
  color: var(--primary-600);
}

.unread-count {
  position: absolute;
  top: -6px;
  right: -6px;
  background: var(--gradient-accent);
  color: var(--text-inverse);
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  min-width: 1.25rem;
  height: 1.25rem;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--bg-primary);
  line-height: 1;
  box-shadow: var(--shadow-md);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

/* Premium Notification Dropdown */
.bell-dropdown-box {
  position: absolute;
  top: 100%;
  right: 0;
  width: 28rem;
  max-width: 90vw;
  max-height: min(70vh, 32rem);
  overflow: hidden;
  background: var(--bg-primary);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  z-index: 1001;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px) scale(0.95);
  transition: all var(--transition-base);
  border: 1px solid var(--border-light);
  margin-top: var(--space-2);
  backdrop-filter: blur(40px);
}

.bell-dropdown-box.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

/* Mobile-specific positioning */
@media (max-width: 640px) {
  .bell-dropdown-box {
    position: fixed;
    top: var(--navbar-height);
    left: 50%;
    right: auto;
    transform: translateX(-50%) translateY(-20px) scale(0.9);
    width: calc(100vw - 2rem);
    max-width: 24rem;
    z-index: 1002;
  }
  
  .bell-dropdown-box.show {
    transform: translateX(-50%) translateY(0) scale(1);
  }
}

/* Tablet positioning */
@media (min-width: 641px) and (max-width: 868px) {
  .bell-dropdown-box {
    width: min(32rem, calc(100vw - 3rem));
    right: 0;
  }
}

/* Desktop positioning */
@media (min-width: 869px) {
  .bell-dropdown-box {
    right: 0;
  }
  
  .bell-dropdown.align-left .bell-dropdown-box {
    right: auto;
    left: 0;
  }
}

/* Premium Notification Components */
.notification-box {
  width: 100%;
  background: var(--bg-primary);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.notification-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-secondary);
  position: sticky;
  top: 0;
  z-index: 2;
  backdrop-filter: blur(10px);
}

.notification-header h3 {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  margin: 0;
}

.mark-all-btn {
  background: none;
  border: none;
  color: var(--primary-600);
  font-weight: var(--font-medium);
  font-size: var(--text-sm);
  cursor: pointer;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-base);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.mark-all-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0.1;
  transition: left var(--transition-base);
}

.mark-all-btn:hover::before {
  left: 0;
}

.mark-all-btn:hover {
  color: var(--primary-700);
  transform: translateY(-1px);
}

.notification-content-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 16rem;
}

.notification-list {
  flex: 1;
  max-height: 24rem;
  overflow-y: auto;
  padding: var(--space-2) 0;
}

/* Custom scrollbar for notification list */
.notification-list::-webkit-scrollbar {
  width: 6px;
}

.notification-list::-webkit-scrollbar-track {
  background: var(--neutral-100);
  border-radius: var(--radius-full);
}

.notification-list::-webkit-scrollbar-thumb {
  background: var(--neutral-300);
  border-radius: var(--radius-full);
  transition: background var(--transition-base);
}

.notification-list::-webkit-scrollbar-thumb:hover {
  background: var(--neutral-400);
}

.notification-item {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-light);
  transition: all var(--transition-base);
  position: relative;
  cursor: pointer;
  background: var(--bg-primary);
  display: block;
  width: 100%;
  overflow: hidden;
}

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

.notification-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0.05;
  transition: left var(--transition-base);
}

.notification-item:hover::before {
  left: 0;
}

.notification-item:hover {
  background: var(--primary-50);
  transform: translateX(4px);
}

.notification-item.unread {
  background-color: var(--primary-50);
  border-left: 4px solid var(--primary-500);
  position: relative;
}

.notification-item.unread::after {
  content: '';
  position: absolute;
  top: 50%;
  left: -2px;
  width: 8px;
  height: 8px;
  background: var(--primary-500);
  border-radius: var(--radius-full);
  transform: translateY(-50%);
  animation: ping 2s infinite;
}

@keyframes ping {
  0%, 100% { transform: translateY(-50%) scale(1); opacity: 1; }
  50% { transform: translateY(-50%) scale(1.5); opacity: 0.5; }
}

.notification-message {
  margin-bottom: var(--space-2);
  color: var(--text-primary);
  line-height: var(--leading-relaxed);
  font-size: var(--text-sm);
  word-wrap: break-word;
  overflow-wrap: break-word;
  white-space: normal;
}

.notification-message.bold {
  font-weight: var(--font-semibold);
}

.notif-username-link {
  color: var(--primary-700);
  font-weight: var(--font-semibold);
  text-decoration: none;
  transition: var(--transition-fast);
  position: relative;
}

.notif-username-link:hover {
  color: var(--primary-600);
  text-decoration: underline;
}

.notification-time {
  font-size: var(--text-xs);
  color: var(--text-muted);
  display: block;
  width: 100%;
  font-weight: var(--font-medium);
}

.notification-footer {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--border-light);
  text-align: center;
  background: var(--bg-secondary);
  position: sticky;
  bottom: 0;
  backdrop-filter: blur(10px);
}

.view-all-link {
  color: var(--primary-600);
  font-weight: var(--font-semibold);
  font-size: var(--text-sm);
  text-decoration: none;
  transition: all var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.view-all-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0.1;
  transition: left var(--transition-base);
}

.view-all-link:hover::before {
  left: 0;
}

.view-all-link:hover {
  color: var(--primary-700);
  text-decoration: none;
  transform: translateY(-1px);
}

/* Empty and loading states */
.empty-message,
.loading-message,
.error-message {
  text-align: center;
  padding: var(--space-8) var(--space-6);
  color: var(--text-muted);
  font-size: var(--text-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  width: 100%;
}

.empty-message svg,
.error-message svg {
  width: 3.5rem;
  height: 3.5rem;
  color: var(--neutral-400);
  opacity: 0.7;
}

.error-message {
  color: var(--error);
}

.error-message svg {
  color: var(--error);
}

.loading-message {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

/* Loading Animation */
.loading-spinner {
  width: 2rem;
  height: 2rem;
  border: 3px solid var(--neutral-200);
  border-top: 3px solid var(--primary-500);
  border-radius: var(--radius-full);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ===== PREMIUM FORM STYLES ===== */
.form-group {
  margin-bottom: var(--space-6);
  position: relative;
}

.form-group label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: var(--font-medium);
  color: var(--text-primary);
  font-size: var(--text-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-lg);
  font-size: var(--text-base);
  transition: all var(--transition-base);
  background: var(--bg-primary);
  font-family: inherit;
  box-shadow: var(--shadow-sm);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
  transform: translateY(-1px);
}

.form-group input.valid {
  border-color: var(--success);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1);
}

.form-group input.invalid {
  border-color: var(--error);
  box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.1);
}

.field-error {
  color: var(--error);
  font-size: var(--text-sm);
  margin-top: var(--space-2);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--font-medium);
}

.field-error::before {
  content: '⚠';
  font-size: var(--text-sm);
}

/* ===== PREMIUM MOBILE NAVIGATION ===== */
.nav-controls-mobile {
  display: none;
  align-items: center;
  gap: var(--space-3);
}

/* Premium Hamburger Menu */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 2.5rem;
  height: 1.75rem;
  cursor: pointer;
  position: relative;
  z-index: 1002;
  background: none;
  border: none;
  padding: 0;
  transition: all var(--transition-base);
}

.hamburger .line {
  height: 3px;
  width: 100%;
  background: var(--text-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  transform-origin: center;
}

.hamburger:hover .line {
  background: var(--primary-600);
}

.hamburger.active .line:nth-child(1) {
  transform: translateY(0.7rem) rotate(45deg);
  background: var(--primary-600);
}

.hamburger.active .line:nth-child(2) {
  opacity: 0;
  transform: scale(0);
}

.hamburger.active .line:nth-child(3) {
  transform: translateY(-0.7rem) rotate(-45deg);
  background: var(--primary-600);
}

/* Premium Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: min(100vw, 24rem);
  height: 100vh;
  background: var(--bg-primary);
  z-index: 1001;
  transition: right var(--transition-base);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-2xl);
  backdrop-filter: blur(40px);
}

.mobile-menu:not(.hidden) {
  right: 0;
}

.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-6) var(--space-5);
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-secondary);
  backdrop-filter: blur(20px);
}

.mobile-menu-header h3 {
  margin: 0;
  color: var(--text-primary);
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
}

.mobile-menu-close {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.mobile-menu-close::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0.1;
  transition: left var(--transition-base);
}

.mobile-menu-close:hover::before {
  left: 0;
}

.mobile-menu-close:hover {
  background: var(--primary-50);
  transform: rotate(90deg);
}

.mobile-menu-close svg {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--text-primary);
}

.mobile-menu-content {
  flex: 1;
  padding: var(--space-4) 0;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.mobile-menu-content a {
  padding: var(--space-4) var(--space-6);
  color: var(--text-primary);
  text-decoration: none;
  font-weight: var(--font-medium);
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  border-left: 4px solid transparent;
  font-size: var(--text-base);
  position: relative;
  overflow: hidden;
}

.mobile-menu-content a::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0.05;
  transition: left var(--transition-base);
}

.mobile-menu-content a:hover::before {
  left: 0;
}

.mobile-menu-content a:hover {
  background: var(--primary-50);
  color: var(--primary-600);
  border-left-color: var(--primary-500);
  padding-left: var(--space-7);
}

/* Premium Mobile Overlay */
.mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: var(--bg-overlay);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.mobile-overlay.show {
  opacity: 1;
  visibility: visible;
}

/* ===== PREMIUM MAIN CONTENT AREA ===== */
.page-wrapper {
  flex: 1;
  width: 100%;
  padding-top: calc(var(--navbar-height) + var(--space-8));
  padding-bottom: var(--space-8);
  min-height: calc(100vh - var(--footer-height));
}

.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* Premium Global Error Container */
.global-error-container {
  background: var(--gradient-accent);
  color: var(--text-inverse);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-6);
  text-align: center;
  font-weight: var(--font-semibold);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Premium Error Boundary */
.error-boundary {
  border: 2px solid var(--error);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  margin: var(--space-6) 0;
  background: var(--accent-50);
  text-align: center;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(20px);
}

.error-boundary h3 {
  color: var(--error);
  margin-bottom: var(--space-4);
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
}

.error-boundary button {
  background: var(--gradient-accent);
  color: var(--text-inverse);
  border: none;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  cursor: pointer;
  font-weight: var(--font-semibold);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
}

.error-boundary button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Premium Lazy Loading */
.lazy-image {
  opacity: 0;
  transition: opacity var(--transition-slow);
  background: var(--neutral-100);
  border-radius: var(--radius-lg);
}

.lazy-image.loaded {
  opacity: 1;
}

/* ===== PREMIUM FOOTER DESIGN ===== */
.main-footer {
  background: var(--neutral-900);
  color: var(--text-inverse);
  padding: var(--space-12) 0 var(--space-8);
  margin-top: auto;
  border-top: 1px solid var(--neutral-700);
  position: relative;
  overflow: hidden;
}

.main-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-primary);
  opacity: 0.3;
}

.footer-content {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-8);
  align-items: start;
  position: relative;
  z-index: 1;
}

.footer-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* Premium Brand Section */
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

.footer-logo-icon {
  font-size: var(--text-2xl);
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
}

.footer-brand h3 {
  margin: 0;
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
}

.footer-brand h3 a {
  color: var(--text-inverse);
  text-decoration: none;
  transition: all var(--transition-base);
  background: linear-gradient(135deg, #fff, var(--neutral-200));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-brand h3 a:hover {
  background: linear-gradient(135deg, var(--primary-200), var(--primary-300));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transform: translateY(-1px);
}

.footer-tagline {
  color: var(--neutral-300);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-2);
}

.footer-copyright {
  color: var(--neutral-400);
  font-size: var(--text-sm);
  margin: 0;
}

/* Premium Social Links */
.footer-social {
  align-items: center;
}

.footer-social h4 {
  margin: 0 0 var(--space-4) 0;
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--text-inverse);
  position: relative;
  display: inline-block;
}

.footer-social h4::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 2.5rem;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

.social-icons {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.08);
  transition: all var(--transition-base);
  border: 1px solid rgba(255, 255, 255, 0.12);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.social-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--transition-slow);
}

.social-link:hover::before {
  left: 100%;
}

.social-link:hover {
  background: var(--primary-500);
  transform: translateY(-3px) scale(1.1);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-400);
}

.social-link img {
  width: 1.25rem;
  height: 1.25rem;
  filter: invert(1);
  transition: all var(--transition-base);
  position: relative;
  z-index: 1;
}

.social-link:hover img {
  transform: scale(1.2) rotate(5deg);
}

/* Premium Contact Section */
.footer-contact {
  align-items: flex-end;
}

.footer-contact h4 {
  margin: 0 0 var(--space-4) 0;
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--text-inverse);
  position: relative;
  display: inline-block;
}

.footer-contact h4::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 2.5rem;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--neutral-300);
  font-size: var(--text-sm);
  transition: all var(--transition-base);
  padding: var(--space-2);
  border-radius: var(--radius-base);
  position: relative;
  overflow: hidden;
}

.contact-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0.05;
  transition: left var(--transition-base);
}

.contact-item:hover::before {
  left: 0;
}

.contact-item:hover {
  color: var(--neutral-200);
  transform: translateX(4px);
}

.contact-item svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--primary-400);
  flex-shrink: 0;
}

.contact-link {
  color: var(--neutral-300);
  text-decoration: none;
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.contact-link:hover {
  color: var(--primary-300);
  text-decoration: underline;
}

/* Premium Footer Bottom */
.footer-bottom {
  grid-column: 1 / -1;
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--neutral-700);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-legal {
  display: flex;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: var(--neutral-400);
}

.footer-legal a {
  color: var(--neutral-400);
  text-decoration: none;
  transition: all var(--transition-base);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  position: relative;
  overflow: hidden;
}

.footer-legal a::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0.1;
  transition: left var(--transition-base);
}

.footer-legal a:hover::before {
  left: 0;
}

.footer-legal a:hover {
  color: var(--neutral-300);
  text-decoration: none;
}

/* ===== PREMIUM MODAL COMPONENTS ===== */
.logout-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-overlay);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  backdrop-filter: blur(8px);
  padding: var(--space-4);
}

.logout-modal.show {
  opacity: 1;
  visibility: visible;
}

.logout-modal-content {
  background: var(--bg-primary);
  padding: var(--space-8);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  max-width: 28rem;
  width: 100%;
  text-align: center;
  transform: translateY(-20px) scale(0.95);
  transition: all var(--transition-bounce);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(40px);
  position: relative;
  overflow: hidden;
}

.logout-modal-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-accent);
}

.logout-modal.show .logout-modal-content {
  transform: translateY(0) scale(1);
}

.logout-modal h3 {
  margin-bottom: var(--space-4);
  color: var(--text-primary);
  font-weight: var(--font-semibold);
  font-size: var(--text-2xl);
}

.logout-modal p {
  margin-bottom: var(--space-6);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  font-size: var(--text-base);
}

.logout-modal-buttons {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
}

.logout-confirm-btn {
  background: var(--gradient-accent);
  color: var(--text-inverse);
  border: none;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  cursor: pointer;
  font-weight: var(--font-semibold);
  transition: all var(--transition-base);
  flex: 1;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.logout-confirm-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--transition-slow);
}

.logout-confirm-btn:hover::before {
  left: 100%;
}

.logout-confirm-btn:hover {
  background: var(--gradient-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.logout-cancel-btn {
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 2px solid var(--border-light);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  cursor: pointer;
  font-weight: var(--font-semibold);
  transition: all var(--transition-base);
  flex: 1;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.logout-cancel-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0.1;
  transition: left var(--transition-base);
}

.logout-cancel-btn:hover::before {
  left: 0;
}

.logout-cancel-btn:hover {
  background: var(--primary-50);
  border-color: var(--primary-300);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ===== UTILITY CLASSES ===== */
.hidden {
  display: none !important;
  visibility: hidden !important;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* ===== RESPONSIVE DESIGN SYSTEM ===== */

/* Large Tablets (1024px and below) */
@media (max-width: 1024px) {
  :root {
    --navbar-height: 4rem;
    --navbar-height-scrolled: 3.5rem;
    --container-padding: clamp(1rem, 4vw, 2rem);
  }
  
  .footer-content {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
  
  .footer-contact {
    align-items: flex-start;
    grid-column: 1 / -1;
    margin-top: var(--space-4);
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
}

/* Tablets and Small Laptops (868px and below) */
@media (max-width: 868px) {
  .desktop-menu {
    display: none;
  }
  
  .nav-controls-mobile {
    display: flex;
  }
  
  .hamburger {
    display: flex;
  }
  
  /* Footer adjustments for tablets */
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-6);
    text-align: center;
  }
  
  .footer-brand {
    align-items: center;
  }
  
  .footer-social {
    align-items: center;
  }
  
  .footer-contact {
    align-items: center;
    text-align: center;
  }
  
  .footer-social h4::after,
  .footer-contact h4::after {
    left: 50%;
    transform: translateX(-50%);
  }
  
  .contact-info {
    align-items: center;
  }
  
  .logout-modal-buttons {
    flex-direction: column;
  }
}

/* Mobile Devices (640px and below) */
@media (max-width: 640px) {
  :root {
    --navbar-height: 3.5rem;
    --navbar-height-scrolled: 3rem;
    --container-padding: clamp(0.75rem, 3vw, 1.5rem);
  }
  
  .navbar {
    padding: 0 var(--space-4);
  }
  
  .logo a {
    font-size: var(--text-xl);
  }
  
  .credits-link {
    font-size: var(--text-xs);
    padding: var(--space-1) var(--space-3);
  }
  
  .bell-btn {
    width: 2.5rem;
    height: 2.5rem;
  }
  
  /* Mobile Footer adjustments */
  .footer-content {
    gap: var(--space-6);
  }
  
  .footer-logo {
    flex-direction: column;
    gap: var(--space-2);
  }
  
  .social-icons {
    gap: var(--space-2);
  }
  
  .social-link {
    width: 2.5rem;
    height: 2.5rem;
  }
  
  .footer-legal {
    flex-direction: column;
    gap: var(--space-2);
  }
  
  /* Mobile modal adjustments */
  .logout-modal {
    padding: var(--space-2);
  }
  
  .logout-modal-content {
    padding: var(--space-6);
  }
}

/* Small Mobile Devices (480px and below) */
@media (max-width: 480px) {
  .navbar {
    padding: 0 var(--space-3);
  }
  
  .nav-controls-mobile {
    gap: var(--space-2);
  }
  
  .credits-link {
    max-width: 6rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    padding: var(--space-1) var(--space-3);
  }
  
  .bell-btn {
    width: 2.5rem;
    height: 2.5rem;
  }
  
  .mobile-menu-content a {
    padding: var(--space-3) var(--space-5);
    font-size: var(--text-sm);
  }
  
  /* Small Mobile Footer */
  .main-footer {
    padding: var(--space-8) 0;
  }
  
  .footer-content {
    padding: 0 var(--space-4);
  }
  
  .footer-section {
    gap: var(--space-3);
  }
  
  .social-link {
    width: 2.25rem;
    height: 2.25rem;
  }
  
  .social-link img {
    width: 1.125rem;
    height: 1.125rem;
  }
}

/* Extra Small Devices (360px and below) */
@media (max-width: 360px) {
  .navbar {
    padding: 0 var(--space-2);
  }
  
  .logo a {
    font-size: var(--text-lg);
  }
  
  .credits-link {
    max-width: 5rem;
    font-size: var(--text-xs);
    padding: var(--space-1) var(--space-2);
  }
  
  .mobile-menu {
    width: 100%;
    right: -100%;
  }
  
  .mobile-menu:not(.hidden) {
    right: 0;
  }
}

/* ===== PREMIUM ACCESSIBILITY ENHANCEMENTS ===== */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--gradient-primary);
  color: var(--text-inverse);
  padding: var(--space-2) var(--space-4);
  z-index: 10000;
  text-decoration: none;
  border-radius: 0 0 var(--radius-lg) 0;
  transition: top var(--transition-base);
  font-weight: var(--font-semibold);
  box-shadow: var(--shadow-md);
}

.skip-link:focus {
  top: 0;
}

/* Enhanced focus styles */
a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus {
  outline: 3px solid var(--primary-500);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Focus visible for keyboard navigation */
@media (prefers-reduced-motion: no-preference) {
  a:focus-visible,
  button:focus-visible,
  input:focus-visible,
  select:focus-visible,
  textarea:focus-visible {
    outline: 3px solid var(--primary-500);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
    transform: scale(1.02);
  }
}

/* High contrast support */
@media (prefers-contrast: high) {
  .navbar {
    background: white;
    border-bottom: 3px solid var(--neutral-900);
  }
  
  .nav-link {
    font-weight: var(--font-bold);
  }
  
  .bell-btn,
  .dropbtn {
    border: 3px solid var(--neutral-900);
  }
  
  .bell-dropdown-box,
  .dropdown-content {
    border: 3px solid var(--neutral-900);
  }
  
  .notification-item.unread {
    border-left: 6px solid var(--primary-700);
    background: var(--primary-100);
  }
  
  .main-footer {
    background: #000;
    border-top: 3px solid #fff;
  }
  
  .footer-brand h3 a,
  .footer-contact a {
    font-weight: var(--font-bold);
  }
  
  .social-link {
    border: 3px solid #fff;
  }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  .navbar {
    background: rgba(15, 23, 42, 0.95);
    border-bottom-color: rgba(255, 255, 255, 0.1);
  }
  
  .navbar.scrolled {
    background: rgba(15, 23, 42, 0.98);
  }
  
  .logo a,
  .nav-link,
  .dropbtn {
    color: var(--neutral-200);
  }
  
  .bell-btn,
  .dropbtn {
    background: var(--neutral-800);
    border-color: var(--neutral-700);
  }
  
  .bell-dropdown-box,
  .dropdown-content {
    background: var(--neutral-800);
    border-color: var(--neutral-700);
  }
  
  .bell-dropdown-box a,
  .dropdown-content a {
    color: var(--neutral-200);
    border-color: var(--neutral-700);
  }
  
  .main-footer {
    background: var(--neutral-900);
  }
  
  .logout-modal-content {
    background: var(--neutral-800);
    color: var(--neutral-200);
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .bell-dropdown-box {
    transition: opacity 0.1s ease;
  }
  
  .bell-btn,
  .nav-link,
  .dropbtn {
    transition: none;
  }
  
  .unread-count {
    animation: none;
  }
}

/* Print styles */
@media print {
  .navbar,
  .main-footer,
  .mobile-overlay,
  .hamburger,
  .bell-dropdown,
  .dropdown,
  .logout-modal {
    display: none !important;
  }
  
  .page-wrapper {
    padding-top: 0;
  }
  
  body {
    background: white !important;
    color: black !important;
    font-size: 12pt;
    line-height: 1.4;
  }
  
  a {
    color: black !important;
    text-decoration: underline !important;
  }
}

/* Noscript warning */
.noscript-warning {
  background: var(--gradient-accent);
  color: var(--text-inverse);
  text-align: center;
  padding: var(--space-3);
  font-weight: var(--font-semibold);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 10000;
  box-shadow: var(--shadow-lg);
}

/* Performance optimizations */
@media (prefers-reduced-transparency: reduce) {
  .navbar,
  .bell-dropdown-box,
  .dropdown-content,
  .logout-modal-content {
    backdrop-filter: none;
    background: var(--bg-primary);
  }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
  .nav-link:hover,
  .bell-btn:hover,
  .dropbtn:hover,
  .dropdown-content a:hover,
  .notification-item:hover,
  .social-link:hover {
    transform: none;
  }
  
  .hamburger:hover .line {
    background: var(--text-primary);
  }
}