/* ===================================
   ARCADIA - UNIFIED DESIGN SYSTEM 2025
   Seamless Public + Private Experience
   =================================== */

/* Enhanced CSS Custom Properties */
:root {
  /* Arcadia Brand Colors - From Official Logo */
  --arcadia-magenta: #b8176b;
  --arcadia-wine: #7c2d12;
  --arcadia-gold: #c89c3c;
  
  /* Extended Brand Palette */
  --arcadia-primary-50: #fdf2f8;
  --arcadia-primary-100: #fce7f3;
  --arcadia-primary-200: #fbcfe8;
  --arcadia-primary-300: #f8a5d8;
  --arcadia-primary-400: #f472b6;
  --arcadia-primary-500: #ec4899;
  --arcadia-primary-600: #db2777;
  --arcadia-primary-700: #be185d;
  --arcadia-primary-800: #9d174d;
  --arcadia-primary-900: #831843;
  
  /* Wine Accent Colors */
  --arcadia-wine-50: #fef2f2;
  --arcadia-wine-100: #fee2e2;
  --arcadia-wine-200: #fecaca;
  --arcadia-wine-300: #fca5a5;
  --arcadia-wine-400: #f87171;
  --arcadia-wine-500: #ef4444;
  --arcadia-wine-600: #dc2626;
  --arcadia-wine-700: var(--arcadia-wine);
  --arcadia-wine-800: #991b1b;
  --arcadia-wine-900: #7f1d1d;
  
  /* Gold Accent Colors */
  --arcadia-gold-50: #fffbeb;
  --arcadia-gold-100: #fef3c7;
  --arcadia-gold-200: #fde68a;
  --arcadia-gold-300: #fcd34d;
  --arcadia-gold-400: #fbbf24;
  --arcadia-gold-500: var(--arcadia-gold);
  --arcadia-gold-600: #d97706;
  --arcadia-gold-700: #b45309;
  --arcadia-gold-800: #92400e;
  --arcadia-gold-900: #78350f;
  
  /* Unified Gradients */
  --gradient-arcadia-primary: linear-gradient(135deg, var(--arcadia-magenta) 0%, var(--arcadia-wine) 100%);
  --gradient-arcadia-accent: linear-gradient(135deg, var(--arcadia-primary-500) 0%, var(--arcadia-gold) 100%);
  --gradient-arcadia-hero: linear-gradient(135deg, var(--arcadia-magenta) 0%, var(--arcadia-wine) 50%, var(--arcadia-gold) 100%);
  --gradient-arcadia-glass: linear-gradient(145deg, rgba(184, 23, 107, 0.1) 0%, rgba(124, 45, 18, 0.05) 100%);
  
  /* Unified Shadows */
  --shadow-arcadia-sm: 0 2px 4px rgba(184, 23, 107, 0.1);
  --shadow-arcadia-md: 0 4px 12px rgba(184, 23, 107, 0.15);
  --shadow-arcadia-lg: 0 8px 25px rgba(184, 23, 107, 0.2);
  --shadow-arcadia-xl: 0 20px 40px rgba(184, 23, 107, 0.25);
  
  /* Navigation Heights */
  --nav-height-desktop: 80px;
  --nav-height-mobile: 64px;
  
  /* Transition System */
  --transition-navigation: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 350ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* ===================================
   UNIFIED HEADER SYSTEM
   =================================== */

/* Main Header - Always Visible */
.arcadia-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(184, 23, 107, 0.1);
  transition: all var(--transition-navigation);
  height: var(--nav-height-desktop);
}

.arcadia-header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  border-bottom-color: rgba(184, 23, 107, 0.2);
  box-shadow: var(--shadow-arcadia-md);
}

.arcadia-header.private-area {
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 2px solid var(--arcadia-magenta);
  box-shadow: var(--shadow-arcadia-lg);
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-6);
  height: 100%;
}

/* Unified Logo */
.arcadia-logo {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  text-decoration: none;
  transition: all var(--transition-smooth);
  padding: var(--space-2) 0;
}

.arcadia-logo:hover {
  transform: scale(1.02);
}

.logo-image {
  height: 48px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 2px 4px rgba(184, 23, 107, 0.1));
  transition: all var(--transition-smooth);
}

.arcadia-logo:hover .logo-image {
  filter: drop-shadow(0 4px 8px rgba(184, 23, 107, 0.2));
}

/* Main Navigation */
.main-navigation {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  color: var(--neutral-700);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: var(--radius-lg);
  transition: all var(--transition-navigation);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.nav-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-arcadia-glass);
  transition: left 0.3s ease;
}

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

.nav-link:hover {
  color: var(--arcadia-magenta);
  background: var(--gradient-arcadia-glass);
  transform: translateY(-1px);
  box-shadow: var(--shadow-arcadia-sm);
}

.nav-link.active {
  color: var(--arcadia-wine);
  background: var(--gradient-arcadia-glass);
  font-weight: 600;
  box-shadow: var(--shadow-arcadia-sm);
}

/* User Menu */
.user-menu {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.user-menu-button {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  background: transparent;
  border: 2px solid transparent;
  border-radius: var(--radius-xl);
  cursor: pointer;
  transition: all var(--transition-navigation);
  text-decoration: none;
  color: inherit;
}

.user-menu-button:hover {
  background: var(--gradient-arcadia-glass);
  border-color: var(--arcadia-primary-200);
  transform: translateY(-1px);
}

.user-avatar {
  width: 40px;
  height: 40px;
  background: var(--gradient-arcadia-primary);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: var(--shadow-arcadia-sm);
}

.user-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}

.user-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--neutral-900);
  line-height: 1.2;
}

.user-plan {
  font-size: 0.75rem;
  color: var(--arcadia-magenta);
  font-weight: 500;
  line-height: 1.2;
}

/* CTA Buttons */
.header-cta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.btn-header {
  padding: var(--space-2) var(--space-4);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition-navigation);
  border: 2px solid transparent;
}

.btn-header-ghost {
  color: var(--neutral-700);
}

.btn-header-ghost:hover {
  color: var(--arcadia-magenta);
  background: var(--gradient-arcadia-glass);
}

.btn-header-primary {
  background: var(--gradient-arcadia-primary);
  color: white;
  box-shadow: var(--shadow-arcadia-sm);
}

.btn-header-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-arcadia-md);
}

/* ===================================
   CONTENT AREA ADJUSTMENTS
   =================================== */

.main-content {
  margin-top: var(--nav-height-desktop);
  min-height: calc(100vh - var(--nav-height-desktop));
}


/* Private Area Specific Styles */
.private-area .main-content {
  background: linear-gradient(135deg, #fafafa 0%, #f5f5f5 100%);
}

/* ===================================
   MOBILE RESPONSIVE
   =================================== */

.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: all var(--transition-navigation);
  /* Era 40x38: sotto la soglia comoda per un dito, ed e' il comando
     principale della navigazione su telefono. */
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
}

.mobile-menu-toggle:hover {
  background: var(--gradient-arcadia-glass);
}

.hamburger {
  width: 24px;
  height: 18px;
  position: relative;
}

.hamburger-line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--arcadia-magenta);
  margin: 4px 0;
  transition: all var(--transition-navigation);
  border-radius: 2px;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: var(--nav-height-mobile);
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--arcadia-primary-200);
  transform: translateY(-100%);
  transition: transform var(--transition-smooth);
  z-index: 998;
  max-height: calc(100vh - var(--nav-height-mobile));
  overflow-y: auto;
}

.mobile-menu.active {
  transform: translateY(0);
}

.mobile-menu-list {
  padding: var(--space-4);
  list-style: none;
  margin: 0;
}

.mobile-menu-item {
  margin-bottom: var(--space-2);
}

.mobile-menu-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  color: var(--neutral-700);
  text-decoration: none;
  font-weight: 500;
  border-radius: var(--radius-lg);
  transition: all var(--transition-navigation);
}

.mobile-menu-link:hover {
  background: var(--gradient-arcadia-glass);
  color: var(--arcadia-magenta);
}

@media (max-width: 1024px) {
  .main-navigation {
    display: none;
  }
  
  .mobile-menu-toggle {
    /* flex, non block: serve a centrare le tre righe dentro i 44px
       di area di tocco aggiunti sopra. */
    display: flex;
  }
  
  .arcadia-header {
    height: var(--nav-height-mobile);
  }
  
  .main-content {
    margin-top: var(--nav-height-mobile);
    min-height: calc(100vh - var(--nav-height-mobile));
  }
  
}

@media (max-width: 768px) {
  .header-container {
    padding: 0 var(--space-4);
  }
  
  .logo-image {
    height: 40px;
  }
  
  .user-info {
    display: none;
  }
  
}

@media (max-width: 480px) {
  .header-container {
    padding: 0 var(--space-3);
  }
  
  .logo-image {
    height: 36px;
  }
  
  .user-avatar {
    width: 36px;
    height: 36px;
    font-size: 0.8rem;
  }
}

/* ===================================
   ANIMATIONS & EFFECTS
   =================================== */

/* Page Transition */
@keyframes pageEnter {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-enter {
  animation: pageEnter 0.5s ease-out;
}

/* Notification Badge Pulse */
@keyframes badgePulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}


/* Hover Glow Effect */
.glow-on-hover {
  transition: all var(--transition-smooth);
}

.glow-on-hover:hover {
  box-shadow: 0 0 20px rgba(184, 23, 107, 0.3);
}

/* ===================================
   ACCESSIBILITY ENHANCEMENTS
   =================================== */

/* Focus Management */
.nav-link:focus-visible,
.user-menu-button:focus-visible {
  outline: 2px solid var(--arcadia-magenta);
  outline-offset: 2px;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  .arcadia-header {
    border-bottom-width: 2px;
  }
  
  .nav-link {
    border: 1px solid transparent;
  }
  
  .nav-link:hover {
    border-color: var(--arcadia-magenta);
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}