/* ============ المتغيرات الأساسية المتميزة ============ */
:root {
  --primary-gradient: linear-gradient(135deg, #5865F2 0%, #8146FF 100%);
  --primary-hover: #4752C4;
  --danger-gradient: linear-gradient(135deg, #ED4245 0%, #F04747 100%);
  --background-dark: #232428;
  --background-darker: #1A1B1E;
  --text-light: #FFFFFF;
  --text-muted: #B5BAC1;
  --glow-effect: 0 0 10px rgba(88, 101, 242, 0.5);
  --shadow-premium: 0 8px 32px rgba(0, 0, 0, 0.25);
  --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --border-radius-xl: 12px;
  --border-radius-pill: 24px;
}

/* ============ زر تسجيل الدخول المتميز ============ */
.login-btn {
  background: var(--primary-gradient);
  color: var(--text-light);
  border: none;
  padding: 12px 24px;
  border-radius: var(--border-radius-pill);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-premium);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.login-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--primary-hover);
  opacity: 0;
  transition: var(--transition-smooth);
  z-index: -1;
}

.login-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(88, 101, 242, 0.3);
}

.login-btn:hover::before {
  opacity: 1;
}

.login-btn i {
  font-size: 18px;
  transition: transform 0.3s ease;
}

.login-btn:hover i {
  transform: translateX(3px);
}

/* ============ قسم البروفايل المتميز ============ */
.user-profile {
  position: relative;
  display: flex;
  align-items: center;
}

.avatar-container {
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  transition: var(--transition-smooth);
  padding: 8px 12px;
  border-radius: var(--border-radius-pill);
  background: rgba(35, 36, 40, 0.7);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.avatar-container:hover {
  background: rgba(47, 49, 54, 0.9);
  box-shadow: var(--glow-effect);
  transform: translateY(-2px);
}

.user-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  transition: var(--transition-smooth);
  border: 2px solid transparent;
  background-origin: border-box;
  background-clip: content-box, border-box;
  position: relative;
}

.avatar-container:hover .user-avatar {
  transform: scale(1.1);
  border: 2px solid var(--primary-color);
  box-shadow: 0 0 0 3px rgba(88, 101, 242, 0.3);
}

.username {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-light);
  max-width: 140px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  position: relative;
  padding-right: 20px;
}

.username::after {
  content: '⌄';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 18px;
  transition: transform 0.3s ease;
}

.avatar-container:hover .username::after {
  transform: translateY(-50%) rotate(180deg);
}

/* ============ قائمة تسجيل الخروج المتميزة ============ */
.dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  background: var(--background-darker);
  border-radius: var(--border-radius-xl);
  padding: 8px;
  min-width: 200px;
  box-shadow: var(--shadow-premium);
  z-index: 1000;
  animation: fadeIn 0.2s ease-out;
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
}

.dropdown-menu.show {
  display: block;
}

.dropdown-menu::before {
  content: '';
  position: absolute;
  bottom: 100%;
  left: 20px;
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 8px solid var(--background-darker);
}

/* زر تسجيل الخروج المتميز */
.logout-btn {
  background: var(--danger-gradient);
  color: var(--text-light);
  border: none;
  padding: 12px 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  text-align: left;
  border-radius: var(--border-radius);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition-smooth);
  margin-top: 4px;
}

.logout-btn:hover {
  transform: translateX(5px);
  box-shadow: 0 4px 12px rgba(237, 66, 69, 0.3);
}

.logout-btn i {
  font-size: 16px;
  transition: transform 0.3s ease;
}

.logout-btn:hover i {
  transform: translateX(3px);
}

/* زر إضافي في القائمة */
.menu-item {
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-muted);
  border-radius: var(--border-radius);
  transition: var(--transition-smooth);
  cursor: pointer;
}

.menu-item:hover {
  background: rgba(79, 84, 92, 0.3);
  color: var(--text-light);
  transform: translateX(5px);
}

.menu-item i {
  width: 20px;
  text-align: center;
}

/* ============ تأثيرات الحركة المتميزة ============ */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* تأثير الطفو */
@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-5px); }
  100% { transform: translateY(0px); }
}

.avatar-container:hover {
  animation: float 3s ease-in-out infinite;
}

/* ============ الصورة الافتراضية المتميزة ============ */
.user-avatar[src="default-avatar.png"],
.user-avatar[onerror] {
  background: linear-gradient(135deg, #43B581, #5865F2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
  font-size: 18px;
}