.notification {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  align-items: center;
  background-color: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 15px;
  box-shadow: var(--box-shadow-lg);
  z-index: 9999;
  transform: translateX(120%);
  transition: transform 0.3s ease;
  max-width: 350px;
  width: 100%;
}
.notification.show {
  transform: translateX(0);
}
.notification-icon {
  margin-right: 15px;
  font-size: 24px;
  flex-shrink: 0;
}
.notification-success .notification-icon {
  color: var(--success-color);
}
.notification-error .notification-icon {
  color: var(--error-color);
}
.notification-content {
  flex: 1;
}
.notification-title {
  font-weight: var(--font-weight-semibold);
  margin-bottom: 5px;
  color: var(--text-color);
}
.notification-message {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}
.notification-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 5px;
  margin-left: 10px;
  transition: color 0.3s ease;
}
.notification-close:hover {
  color: var(--text-color);
}
@media screen and (max-width: 480px) {
  .notification {
    bottom: 10px;
    right: 10px;
    left: 10px;
    width: auto;
    max-width: none;
  }
}
@media screen and (max-width: 992px) {
  .header-social-links {
    margin-top: 20px;
  }
  .header-social-link {
    width: 40px;
    height: 40px;
    font-size: 18px;
  }
}
@media screen and (max-width: 768px) {
  .project-features ul {
    padding-left: 0;
  }
  .project-features li {
    font-size: var(--font-size-xs);
  }
  .certification-card, .achievement-card {
    padding: var(--space-3);
  }
}
@media screen and (max-width: 480px) {
  .project-tags {
    flex-wrap: wrap;
  }
  .tag {
    margin-bottom: 5px;
  }
  .project-links {
    flex-direction: column;
  }
  .project-links .btn {
    width: 100%;
    text-align: center;
  }
}
@supports (-webkit-touch-callout: none) {
  .navbar {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }
  .project-card, .certification-card, .achievement-card {
    transition: transform 0.4s cubic-bezier(0.165, 0.84, 0.44, 1), 
                box-shadow 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  }
  html, body {
    -webkit-overflow-scrolling: touch;
  }
}