/* Reset & Variables */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Times New Roman', Times, serif;
        }

        :root {
            --primary-color: #34C759;
            --dark-color: #333;
            --light-color: #ffffff;
            --gray-color: #666;
            --light-gray: #f5f5f5;
            --transition: all 0.3s ease;

        }

        /* Base Styles */
        html, body {
            background-color: var(--light-gray);
            line-height: 1.6;
            overflow-x: hidden;
            min-height: 100vh;
        }

        body {
            display: flex;
            flex-direction: column;
        }

        /* Header Styles */
        header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background-color: var(--dark-color);
            color: var(--light-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 0.5rem;
            height: 50px;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
        }

        .logo-text-container {
            position: absolute;
            top: 50%;
            right: 3%;
            transform: translateY(-50%);
            width: auto;
            text-align: center;
            z-index: 1001;
        }

        .logo-text {
            color: var(--primary-color);
            font-size: 1.1rem;
            font-weight: 700;
            letter-spacing: 3px;
            text-transform: uppercase;
            padding: 2px 8px;
            line-height: 1.2;
            display: inline-block;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
            background: var(--light-color);
            border: 2px solid var(--light-color);
            border-radius: 6px;
            transition: var(--transition);
        }

.logo-text {
    text-decoration: none; /* Bỏ gạch chân */

    cursor: pointer;
}

.logo-text:hover {
    opacity: 0.8; /* Hiệu ứng khi hover */
}
 
    /* Styles mới cho logo */
    .logo-container {
        background: var(--light-color);
        padding: 2px 8px;
        border-radius: 6px;
        transition: var(--transition);
    }

    .logo-container:hover {
        opacity: 0.8;
    }

    .logo-container a {
        text-decoration: none;
        display: block;
    }

    .logo-svg {
        height: 35px;
        width: auto;
        display: block;
    }

    /* Media Queries */
    @media (max-width: 768px) {
        .logo-svg {
            height: 30px;
        }
        
        .search-input {
            width: 120px;
        }
    }

    @media (max-width: 480px) {
        .search-input {
            width: 100px;
        }
        
        .logo-svg {
            height: 25px;
        }
    }

        .menu-icon {
            font-size: 2.5rem;
            cursor: pointer;
            z-index: 1001;
        }

        /* Search Bar Styles */
        .search-container {
            display: flex;
            align-items: center;
            gap: 5px;
            background: var(--light-color);
            border: 1px solid var(--primary-color);
            border-radius: 20px;
            padding: 0 10px;
            height: 31px;
            transition: var(--transition);
            margin-right: auto;
            margin-left: 30px;
        }

        .search-input {
            border: none;
            outline: none;
            flex: 1;
            font-size: 0.9rem;
            padding: 5px;
            color: var(--dark-color);
            background: transparent;
        }

        .search-button {
            background: var(--primary-color);
            border: none;
            color: var(--light-color);
            padding: 5px 10px;
            border-radius: 20px;
            cursor: pointer;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        /* Main Content Styles */
        .main-content {
            flex: 1;
            max-width: 800px;
            margin: 0 auto;
            padding: 0rem;
        }

        /* Article Styles */
        .article {
            background: var(--light-color);
            padding: 1rem;
            border-radius: 8px;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
            margin: 20px 10px;
        }


        .article h1 {
            color: var(--dark-color);
            font-size: 2rem;
            margin-bottom: 1rem;
        }

        .article-meta {
            color: var(--gray-color);
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }

        .article-content {
            color: var(--dark-color);
            font-size: 1.1rem;
            line-height: 1.8;
        }



        /* Ảnh bài viết Styles */

.image-container {
    width: 100%;
    max-width: 800px;
    margin: 20px auto;
    padding: 10px;
    background: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.article-image {
    width: 100%;
    max-width: 800px;
    height: auto; /* Để chiều cao tự động theo tỷ lệ ảnh */
    max-height: 800px; /* Giới hạn chiều cao tối đa */
    object-fit: contain;
    display: block;
    margin: 0 auto;
}

figcaption {
    text-align: center;
    font-size: 14px;
    color: #666;
    margin-top: 10px;
    padding: 0 10px;
    line-height: 1.5;
}

/* Responsive cho mobile */
@media screen and (max-width: 850px) {
    .image-container {
        padding: 5px;
    }
    
    .article-image {
        max-height: 500px; /* Giới hạn chiều cao trên mobile */
    }
}


        /* Footer Styles */
        footer {
            background-color: var(--dark-color);
            color: var(--light-color);
            padding: 1rem;
            text-align: center;
            margin-top: auto;
        }

        .social-icons {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            margin-top: 0.8rem;
        }

        .social-icons a {
            color: var(--light-color);
            text-decoration: none;
            font-size: 1.2rem;
            transition: var(--transition);
            width: 35px;
            height: 35px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
        }

        .social-icons a:hover {
            background: var(--primary-color);
            transform: translateY(-3px);
        }




/* Navigation Menu Styles */
.nav-menu {
    position: fixed;
    top: 50px; /* Để menu nằm dưới header */
    left: -300px; /* Ẩn menu ban đầu */
    width: 300px;
    height: calc(100vh - 50px);
    background-color: #333;
    transition: 0.3s;
    z-index: 999;
    overflow-y: auto;
    padding: 20px 0;
}

.nav-menu.active {
    left: 0;
}

.nav-overlay {
    position: fixed;
    top: 50px;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    z-index: 998;
}

.nav-overlay.active {
    display: block;
}

.nav-menu ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-menu li {
    padding: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-menu a {
    display: flex;
    align-items: center;
    padding: 15px 25px;
    color: #fff;
    text-decoration: none;
    transition: 0.3s;
    font-size: 16px;
}

.nav-menu a:hover {
    background-color: var(--primary-color);
    padding-left: 30px;
}

.nav-menu i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

/* Submenu styles */
.submenu {
    background-color: rgba(0, 0, 0, 0.2);
    display: none;
}

.submenu.active {
    display: block;
}

.nav-menu li.has-submenu > a::after {
    content: '\f107';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    margin-left: auto;
    transition: 0.3s;
}

.nav-menu li.has-submenu.active > a::after {
    transform: rotate(180deg);
}

.submenu a {
    padding-left: 50px;
}

.submenu a:hover {
    padding-left: 55px;
}

body.menu-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
    height: 100%;
}

.nav-menu {
    -webkit-overflow-scrolling: touch; /* Cho phép scroll mượt trên iOS */
}




/* User info section */
.user-info {
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: #fff;
    text-align: center;
    margin-bottom: 15px;
}

.user-info img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin-bottom: 10px;
}

.user-info h3 {
    margin: 0;
    font-size: 18px;
    color: var(--primary-color);
}

.user-info p {
    margin: 5px 0 0;
    font-size: 14px;
    opacity: 0.7;
}

@media (max-width: 768px) {
    .nav-menu {
        width: 260px;
    }
}




/* News Container */

.news-container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.news-item {
    display: flex;
    padding: 15px;
    border-bottom: 1px solid #eee;
    text-decoration: none;
    color: inherit;
}

.news-item:hover {
    background-color: #f8f8f8;
}

.news-item:last-child {
    border-bottom: none;
}

.news-image {
    width: 150px;
    height: 100px;
    object-fit: cover;
    margin-right: 15px;
    border-radius: 4px;
    flex-shrink: 0; /* Thêm thuộc tính này để ngăn ảnh bị co */
}

.news-title {
    font-size: 20px;
    color: #333;
    flex-grow: 1;
    display: flex;
    align-items: center;
    line-height: 1.4;
}

/* CSS cho mobile */
@media screen and (max-width: 768px) {
    .news-item {
        padding: 12px;
    }
    
    .news-image {
        width: 120px;    /* Kích thước cố định cho mobile */
        height: 80px;    /* Tỷ lệ 3:2 */
        flex-shrink: 0;  /* Ngăn ảnh bị co */
    }
    
    .news-title {
        font-size: 18px;
        line-height: 1.4;
    }
}

/* CSS cho màn hình rất nhỏ */
@media screen and (max-width: 480px) {
    .news-item {
        padding: 10px;
    }
    
    .news-image {
        width: 100px;   /* Kích thước nhỏ hơn cho điện thoại màn hình nhỏ */
        height: 67px;   /* Vẫn giữ tỷ lệ 3:2 */
    }
    
    .news-title {
        font-size: 16px;
    }
}