/* 
   🏠 أنماط الصفحة الرئيسية - منصة مُلقّن 
   ملف CSS منفصل لتحسين الأداء وسهولة الصيانة
*/

/* ═══════════════════════════════════════════ */
/*              GLOBAL STYLES                  */
/* ═══════════════════════════════════════════ */

* {
  font-family: 'Cairo', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif !important;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: var(--gradient-bg);
  color: var(--text-light);
  min-height: 100vh;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

/* ═══════════════════════════════════════════ */
/*            BACKGROUND EFFECTS               */
/* ═══════════════════════════════════════════ */

.bg-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-bg);
  z-index: -2;
}

.particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: -1;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--primary-gold);
  border-radius: 50%;
  opacity: 0.2;
  animation: float 8s ease-in-out infinite;
  will-change: transform;
}

@keyframes float {
  0%, 100% { 
    transform: translateY(0px) translateX(0px) rotate(0deg); 
    opacity: 0.2;
  }
  25% { 
    transform: translateY(-15px) translateX(5px) rotate(90deg); 
    opacity: 0.4;
  }
  50% { 
    transform: translateY(-25px) translateX(-5px) rotate(180deg); 
    opacity: 0.1;
  }
  75% { 
    transform: translateY(-10px) translateX(8px) rotate(270deg); 
    opacity: 0.3;
  }
}

/* تحسين الأداء للموبايل */
@media (max-width: 768px) {
  .particle {
    animation-duration: 12s;
    opacity: 0.1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .particle {
    animation: none;
    opacity: 0.1;
  }
}

/* ═══════════════════════════════════════════ */
/*            NOTIFICATION STYLES              */
/* ═══════════════════════════════════════════ */

.logout-notification {
  position: fixed;
  top: 20px;
  right: 20px;
  background: var(--gradient-primary);
  color: var(--primary-dark);
  padding: 1rem 2rem;
  border-radius: 12px;
  font-weight: 600;
  box-shadow: var(--shadow-primary);
  z-index: 1000;
  animation: slideIn 0.5s ease-out;
  max-width: 400px;
}

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes slideOut {
  from { transform: translateX(0); opacity: 1; }
  to { transform: translateX(100%); opacity: 0; }
}

/* ═══════════════════════════════════════════ */
/*              HEADER STYLES                  */
/* ═══════════════════════════════════════════ */

.main-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(15, 20, 25, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  z-index: 100;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.main-header.scrolled {
  background: rgba(15, 20, 25, 0.95);
  box-shadow: var(--shadow-secondary);
  backdrop-filter: blur(25px);
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary-gold);
  text-decoration: none;
  transition: transform 0.3s ease;
}

.logo:hover {
  transform: scale(1.05);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-dark);
  font-weight: 900;
  transition: transform 0.3s ease;
}

.logo:hover .logo-icon {
  transform: rotate(5deg);
}

/* ═══════════════════════════════════════════ */
/*            NAVIGATION STYLES                */
/* ═══════════════════════════════════════════ */

.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  color: var(--text-light);
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.nav-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.1), transparent);
  transition: left 0.5s ease;
}

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

.nav-link:hover {
  color: var(--primary-gold);
  background: var(--glass-bg);
  transform: translateY(-1px);
}

.nav-link.active {
  color: var(--primary-gold);
  background: var(--glass-bg);
  box-shadow: 0 0 10px rgba(212, 175, 55, 0.2);
}

/* ═══════════════════════════════════════════ */
/*              USER ACTIONS                   */
/* ═══════════════════════════════════════════ */

.user-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.login-btn {
  background: var(--gradient-primary);
  color: var(--primary-dark);
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-primary);
  position: relative;
  overflow: hidden;
}

.login-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 0.5s ease;
}

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

.login-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(212, 175, 55, 0.3);
}

.user-menu {
  position: relative;
}

.user-btn {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-light);
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.user-btn:hover {
  background: var(--glass-strong);
  border-color: var(--primary-gold);
  transform: translateY(-1px);
}

.user-dropdown {
  position: absolute;
  top: 110%;
  left: 0;
  background: rgba(15, 20, 25, 0.95);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 0.5rem 0;
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  box-shadow: var(--shadow-secondary);
}

.user-menu:hover .user-dropdown,
.user-menu:focus-within .user-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.5rem;
  color: var(--text-light);
  text-decoration: none;
  transition: all 0.3s ease;
}

.dropdown-item:hover {
  background: var(--glass-bg);
  color: var(--primary-gold);
}

.dropdown-item.logout {
  color: #FF6B6B;
  border-top: 1px solid var(--glass-border);
  margin-top: 0.5rem;
}

.dropdown-item.logout:hover {
  background: rgba(255, 107, 107, 0.1);
}

/* ═══════════════════════════════════════════ */
/*            MOBILE NAVIGATION                */
/* ═══════════════════════════════════════════ */

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.mobile-menu-btn:hover {
  background: var(--glass-bg);
  color: var(--primary-gold);
}

/* ═══════════════════════════════════════════ */
/*            RESPONSIVE DESIGN                */
/* ═══════════════════════════════════════════ */

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(15, 20, 25, 0.98);
    flex-direction: column;
    padding: 1rem;
    border-top: 1px solid var(--glass-border);
    backdrop-filter: blur(20px);
  }

  .main-nav.active {
    display: flex;
  }

  .header-container {
    padding: 1rem;
  }

  .logo {
    font-size: 1.5rem;
  }

  .logo-icon {
    width: 35px;
    height: 35px;
  }

  .user-dropdown {
    right: 0;
    left: auto;
  }

  .login-btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
  }

  /* تقليل particles للموبايل */
  .particles {
    opacity: 0.5;
  }
}

@media (max-width: 480px) {
  .header-container {
    padding: 0.75rem;
  }

  .logo {
    font-size: 1.3rem;
  }

  .logo-icon {
    width: 32px;
    height: 32px;
  }

  .user-actions {
    gap: 0.5rem;
  }

  .login-btn {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
  }
}

/* ═══════════════════════════════════════════ */
/*            PERFORMANCE OPTIMIZATIONS        */
/* ═══════════════════════════════════════════ */

/* تحسين العناصر المتحركة */
.logo, .logo-icon, .nav-link, .login-btn, .user-btn {
  will-change: transform;
}

/* تحسين الـ backdrop-filter للأجهزة الضعيفة */
@media (max-width: 768px) and (max-resolution: 150dpi) {
  .main-header {
    backdrop-filter: none;
    background: rgba(15, 20, 25, 0.95);
  }
  
  .user-dropdown {
    backdrop-filter: none;
    background: rgba(15, 20, 25, 1);
  }
}

/* دعم Dark Mode */
@media (prefers-color-scheme: dark) {
  .main-header {
    background: rgba(10, 15, 20, 0.9);
  }
}

/* دعم High Contrast */
@media (prefers-contrast: high) {
  .nav-link, .login-btn, .user-btn {
    border: 2px solid var(--primary-gold);
  }
}

/* دعم تقليل الحركة */
@media (prefers-reduced-motion: reduce) {
  .logo, .nav-link, .login-btn, .user-btn, .user-dropdown {
    transition: none;
  }
  
  .nav-link::before, .login-btn::before {
    display: none;
  }
}