.affiliate-header {
  background:rgba(7, 63, 12, 0.978);
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid #f0f0f0;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
/* Branding */
.header-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-slogan {
  color:var(--light-color);
  font-size: 0.9rem;
  font-weight: 500;
  border-left: 1px solid #e5e7eb;
  padding-left: 10px;
}
/* Tooltip for full titles */
.nav-item {
  position: relative;
}

.nav-item:hover::after {
  content: attr(data-fulltitle);
  position: absolute;
  bottom: -40px;
  left: 50%;
  transform: translateX(-50%);
  background: #333;
  color: white;
  padding: 5px 10px;
  border-radius: 4px;
  font-size: 0.8rem;
  white-space: nowrap;
  z-index: 100;
  opacity: 0;
  transition: opacity 0.3s;
}

.nav-item:hover::before {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  border-width: 5px;
  border-style: solid;
  border-color: transparent transparent #333 transparent;
  z-index: 101;
  opacity: 0;
  transition: opacity 0.3s;
}

.nav-item:hover::after,
.nav-item:hover::before {
  opacity: 1;
}

/* Mobile adaptation */
@media (max-width: 768px) {
  .nav-item:hover::after,
  .nav-item:hover::before {
    display: none;
  }
}
/* Logo */
.logo-img {
  height: 40px;
  width: auto;
  height: 38px;
  width: auto;
  transition: transform 0.3s ease;
}

.logo-img:hover {
  transform: scale(1.03);
}

/* Navigation */
.nav-list {
  display: flex;
  gap: 2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.nav-link:hover,
.nav-link.active {
  color: #3b82f6;
}

/* Mobile Menu */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: #1e293b;
  margin: 5px 0;
  transition: all 0.3s ease;
}

/* Smooth Scrolling */
html {
  scroll-behavior: smooth;
}

/* Responsive Design */
@media (max-width: 768px) {
  .header-container {
    padding: 1rem;
  }
  
  .header-nav {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 80%;
    height: calc(100vh - 70px);
    background: #fff;
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
    transition: all 0.4s ease;
    padding: 2rem;
  }
  
  .header-nav.active {
    left: 0;
  }
  
  .nav-list {
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .mobile-menu-toggle {
    display: block;
    z-index: 1001;
  }
  
  .mobile-menu-toggle.active .toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  
  .mobile-menu-toggle.active .toggle-bar:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-toggle.active .toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

/* Navigation Styles */
.nav-list {
  display: flex;
  gap: 1.8rem;
  margin: 0;
  padding: 0;
}

.nav-item {
  position: relative;
  list-style: none;
}

.nav-link {
  color:var(--light-color);
  font-weight: 500;
  font-size: 1.05rem;
  padding: 0.5rem 0;
  position: relative;
  text-decoration: none;
  transition: all 0.3s ease;
}

.nav-link:hover {
  color: #05b01f;
}

.nav-link.active {
  color: #05b01f;
  font-weight: 600;
}
/* Mobile Menu */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
}

.toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: #013520;
  margin: 5px 0;
  transition: all 0.3s ease;
}

/* Responsive Design */
@media (max-width: 992px) {
  .header-container {
    padding: 0.8rem 1.5rem;
  }
  
  .header-nav {
    position: fixed;
    top: 0;
    left: -100%;
    width: 280px;
    height: 100vh;
    background: #ffffff;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.05);
    transition: all 0.4s ease;
    z-index: 1000;
    padding-top: 5rem;
  }

  .header-container.mobile-active .header-nav {
    left: 0;
  }

  .nav-list {
    flex-direction: column;
    gap: 0;
    padding: 0 1.5rem;
  }

  .nav-item {
    padding: 0.6rem 0;
    border-bottom: 1px solid #f1f5f9;
  }
  .mobile-menu-toggle {
    display: block;
  }

  .header-container.mobile-active .toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .header-container.mobile-active .toggle-bar:nth-child(2) {
    opacity: 0;
  }

  .header-container.mobile-active .toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}
        
        /* Logo */
        .logo {
            display: flex;
            align-items: center;
            text-decoration: none;
        }
        
        .logo img {
            height: 50px; /* Điều chỉnh theo kích thước mong muốn */
            width: auto;
            transition: all 0.3s ease;
            transform-origin: center;
            will-change: transform, filter; /* Tối ưu hiệu ứng */
        }
        
        .logo-text {
           margin-left: 10px;
           font-size: 1.5rem;
           font-weight: 700;
           color: #333;
           transition: all 0.3s ease;
        }

        /* Hiệu ứng khi hover */
        .logo:hover .logo-img {
            transform: scale(1.1) rotate(-5deg);
            filter: drop-shadow(0 0 8px rgba(0, 0, 0, 0.2));
        }

        .logo:hover .logo-text {
            color: #0ab451;
            text-shadow: 0 0 5px rgba(0, 102, 255, 0.2);
        }

        /* Header khi scroll */
        .header.scrolled {
            padding: 10px 0;
            background-color: rgba(255, 255, 255, 0.95);
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
        }

        .header.scrolled .logo-img {
            height: 40px; /* Thu nhỏ logo khi scroll */
        }

        /* Responsive */
        @media (max-width: 768px) {
            .logo-img {
                height: 40px;
            }
    
            .logo-text {
                font-size: 1.2rem;
            }
    
            .header.scrolled .logo-img {
        height: 35px;
            }
        }
        :root {
            --primary-color: #2e7d32;
            --secondary-color: #4caf50;
            --dark-color: #212121;
            --light-color: #f5f5f5;
            --text-color: #333;
            --text-light: #666;
            --white: #fff;
            --border-radius: 8px;
            --box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
        }

        /*foooter*/
        footer {
            background-color: var(--dark-color);
            color: var(--white);
            padding: 40px 0 20px;
            margin-top: 50px;
        }
        
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            margin-bottom: 30px;
        }
        
        .footer-logo {
            flex: 0 0 200px;
            margin-bottom: 20px;
        }
        
        .footer-logo img {
            max-width: 150px;
            margin-bottom: 15px;
        }
        
        .footer-logo p {
            font-size: 14px;
            line-height: 1.6;
        }
        
        .footer-links {
            flex: 0 0 calc(25% - 20px);
            margin-bottom: 20px;
        }
        
        .footer-links h3 {
            font-size: 18px;
            margin-bottom: 15px;
            position: relative;
            padding-bottom: 10px;
            color: rgb(190, 208, 195);
        }
        
        .footer-links h3::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 40px;
            height: 2px;
            background-color: var(--primary-color);
        }
        
        .footer-links ul {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 8px;
        }
        
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            font-size: 14px;
            transition: var(--transition);
        }
        
        .footer-links a:hover {
            color: var(--white);
            padding-left: 5px;
        }
        
        .footer-social a {
            display: inline-block;
            width: 35px;
            height: 35px;
            background-color: rgba(255,255,255,0.1);
            color: var(--white);
            border-radius: 50%;
            text-align: center;
            line-height: 35px;
            margin-right: 10px;
            transition: var(--transition);
        }
        
        .footer-social a:hover {
            background-color: var(--primary-color);
            transform: translateY(-3px);
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 14px;
            color: #aaa;
        }
        
        @media (max-width: 992px) {
            .article-wrapper {
                flex-direction: column;
            }
            
            .side-menu, .related-articles {
                width: 100%;
                position: static;
                margin-bottom: 20px;
            }
            
            .footer-links {
                flex: 0 0 calc(50% - 20px);
            }
        }

        @media (max-width: 768px) {
            .web-item {
                flex-direction: column;
            }
            
            .web-image {
                width: 100%;
                margin-left: 0;
                margin-top: 15px;
            }
            
            .pros-cons {
                flex-direction: column;
            }
            
            .pros {
                margin-right: 0;
                margin-bottom: 10px;
            }
            
            .footer-links {
                flex: 0 0 100%;
            }
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: var(--primary-color);
            color:var(--light-color);
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s;
            z-index: 99;
            box-shadow: 0 2px 10px rgba(0,0,0,0.2);
        }
        
        .back-to-top.show {
            opacity: 1;
            visibility: visible;
        }
        
        .back-to-top:hover {
            background-color: var(--primary-color);
            transform: translateY(-3px);
        }
        
        .back-to-top i {
            font-size: 20px;
        }