/* --- CSS VARIABLES & GLOBAL STYLES --- */
:root {
    --primary-blue: #3b82f6;
    --primary-hover: #2563eb;
    --dark-blue: #0b1329;
    --light-blue: #eff6ff;
    --accent-cyan: #38bdf8;
    --accent-green: #10b981;
    --accent-gold: #f59e0b;
    --text-dark: #0f172a;
    --text-muted: #64748b;
    --bg-light: #f8fafc;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
    --shadow-soft: 0 10px 30px rgba(59, 130, 246, 0.08);
    --shadow-hover: 0 20px 40px rgba(59, 130, 246, 0.18);
    --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--dark-blue);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary-blue), var(--accent-cyan));
    border-radius: 6px;
}

html, body {
    overflow-x: hidden;
    width: 100%;
}

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.7;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

.container {
    max-width: 1300px;
    width: 100%;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- TOP BAR --- */
.top-bar {
    background-color: var(--dark-blue);
    color: #94a3b8;
    font-size: 0.85rem;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    
}


.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.social-links a {
    color: #94a3b8;
    margin-left: 12px;
}

    .social-links a:hover {
        color: var(--accent-cyan);
    }

.lang-select {
    cursor: pointer;
    color: #fff;
    font-weight: 600;
}

/* --- NAVBAR --- */
.navbar {
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 75px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--dark-blue);
    white-space: nowrap;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-cyan));
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.nav-menu > ul {
    display: flex;
    gap: 22px;
}

.nav-link {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.92rem;
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 7px;
}

    .nav-link:hover, .nav-link.active {
        color: var(--primary-blue);
    }

.dropdown {
    position: relative;
}

.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 220px;
    background-color: #fff;
    box-shadow: var(--shadow-hover);
    border-radius: 12px;
    padding: 10px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.dropdown:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.submenu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 18px;
    font-size: 0.88rem;
    color: var(--text-muted);
    font-weight: 500;
}

    .submenu a:hover {
        background-color: var(--light-blue);
        color: var(--primary-blue);
    }

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn {
    padding: 8px 16px;
    border-radius: 6px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    font-size: 0.85rem;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-hover));
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 18px rgba(59, 130, 246, 0.4);
    }

.hamburger {
    display: none;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--dark-blue);
    padding: 5px;
}

/* --- HERO BANNER WITH IMAGE --- */
.blog-single-hero {
    background: linear-gradient(135deg, rgba(11, 19, 41, 0.88) 0%, rgba(6, 12, 29, 0.95) 100%), url('https://images.unsplash.com/photo-1621416894569-0f39ed31d247?q=80&w=1600&auto=format&fit=crop') center/cover no-repeat;
    color: white;
    padding: 60px 0;
    text-align: center;
    position: relative;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.breadcrumb {
    font-size: 0.85rem;
    color: #cbd5e1;
    margin-bottom: 12px;
}

    .breadcrumb a {
        color: #cbd5e1;
    }

    .breadcrumb .current {
        color: var(--accent-cyan);
        font-weight: 600;
    }

.blog-single-hero h1 {
    font-size: 2.8rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 0;
    letter-spacing: -0.5px;
}

/* --- MAIN LAYOUT (ARTICLE + SIDEBAR) --- */
.article-layout-section {
    padding: 40px 0 60px 0;
}

.article-grid {
    display: grid;
    grid-template-columns: 2.4fr 1fr;
    gap: 30px;
}

/* --- ARTICLE CONTENT STYLES --- */
.article-main {
    background: var(--card-bg);
    border-radius: 18px;
    padding: 35px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-soft);
}

.article-header {
    margin-bottom: 25px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
}

.main-article-title {
    font-size: 1.85rem;
    font-weight: 800;
    color: var(--dark-blue);
    line-height: 1.35;
    margin-bottom: 12px;
}

.intro-lead {
    font-size: 1.02rem;
    color: var(--text-muted);
}

.article-body h2 {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--dark-blue);
    margin: 28px 0 10px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

    .article-body h2::before {
        content: '';
        width: 4px;
        height: 18px;
        background: var(--primary-blue);
        border-radius: 2px;
        display: inline-block;
        flex-shrink: 0;
    }

.article-body p {
    color: #334155;
    font-size: 0.96rem;
    margin-bottom: 16px;
    line-height: 1.65;
    word-wrap: break-word;
}

.article-body ul, .article-body ol {
    margin: 12px 0 18px 20px;
}

.article-body li {
    font-size: 0.94rem;
    color: #334155;
    margin-bottom: 8px;
}

.brand-link {
    color: var(--primary-blue);
    font-weight: 700;
    background: var(--light-blue);
    padding: 2px 6px;
    border-radius: 4px;
}

    .brand-link:hover {
        color: var(--primary-hover);
        text-decoration: underline;
    }

/* --- SIDEBAR STYLES --- */
.sidebar-wrapper {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.sidebar-widget {
    background: var(--card-bg);
    border-radius: 18px;
    padding: 22px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-soft);
}

.widget-title {
    font-size: 1.05rem;
    font-weight: 800;
    color: var(--dark-blue);
    margin-bottom: 18px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--light-blue);
    padding-bottom: 8px;
}

/* Share Buttons */
.social-share-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.share-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--light-blue);
    color: var(--primary-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: var(--transition);
}

    .share-btn:hover {
        background: var(--primary-blue);
        color: white;
        transform: translateY(-3px);
    }

/* Sidebar Blog List */
.sidebar-blogs-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sidebar-blog-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 10px;
    border-radius: 10px;
    transition: var(--transition);
}

    .sidebar-blog-item:hover {
        background: var(--bg-light);
    }

.blog-item-icon {
    width: 38px;
    height: 38px;
    border-radius: 8px;
    background: var(--light-blue);
    color: var(--primary-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.sidebar-blog-item.active {
    background: var(--light-blue);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

    .sidebar-blog-item.active .blog-item-icon {
        background: var(--primary-blue);
        color: white;
    }

.blog-item-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--dark-blue);
    line-height: 1.35;
}

.sidebar-blog-item:hover .blog-item-title {
    color: var(--primary-blue);
}

/* Tags */
.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-chip {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    transition: var(--transition);
    word-break: break-word;
}

    .tag-chip:hover {
        background: var(--primary-blue);
        color: white;
        border-color: var(--primary-blue);
    }

/* --- FOOTER --- */
.footer {
    background-color: var(--dark-blue);
    color: #94a3b8;
    padding-top: 50px;
    margin-top: 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
    padding-bottom: 35px;
}

.footer-logo {
    color: white;
    margin-bottom: 15px;
}

.footer-brand p {
    font-size: 0.88rem;
    margin-bottom: 10px;
}

.contact-email {
    color: #fff;
    font-weight: 600;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.link-column h4 {
    color: white;
    font-size: 0.95rem;
    margin-bottom: 15px;
}

.link-column ul li {
    margin-bottom: 8px;
}

.link-column ul a {
    color: #94a3b8;
    font-size: 0.85rem;
}

    .link-column ul a:hover {
        color: var(--accent-cyan);
        padding-left: 5px;
    }

.footer-bottom {
    background-color: rgba(0, 0, 0, 0.25);
    padding: 16px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.82rem;
}

.back-to-top {
    width: 36px;
    height: 36px;
    background: var(--primary-blue);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* --- FULL MOBILE RESPONSIVE FIXES --- */
@media (max-width: 992px) {
    .article-grid {
        grid-template-columns: 1fr;
    }

    .article-main {
        padding: 22px;
    }

    .hamburger {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 75px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 75px);
        background: #ffffff;
        padding: 20px;
        overflow-y: auto;
        transition: left 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    }

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

        .nav-menu > ul {
            flex-direction: column;
            gap: 0;
        }

            .nav-menu > ul > li {
                border-bottom: 1px solid var(--border-color);
            }

    .submenu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        width: 100%;
        padding: 0 0 10px 15px;
        display: none;
        background-color: var(--bg-light);
        border-radius: 8px;
        margin-bottom: 10px;
    }

    .dropdown.active .submenu {
        display: block;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }

    .top-bar-content {
        flex-direction: column;
        gap: 6px;
        text-align: center;
    }

    .blog-single-hero {
        padding: 40px 0;
    }

        .blog-single-hero h1 {
            font-size: 1.6rem;
        }

    .main-article-title {
        font-size: 1.35rem;
    }

    .article-main {
        padding: 16px;
        border-radius: 12px;
    }

    .article-body h2 {
        font-size: 1.15rem;
    }

    .sidebar-widget {
        padding: 16px;
        border-radius: 12px;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .footer-bottom-content {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}

.login-btn {
    font-weight: 600;
    color: var(--text-dark);
    padding: 8px 12px;
}

.logo-img {
    width: 150px;
    height: auto;
}

.logo-img {
    width: 150px;
    height: auto;
}
/* Mobile */
@media (max-width: 768px) {
    .logo-img {
        width: 110px;
        height: auto;
    }
}

@media (max-width: 768px) {
    .login-btn {
        display: none;
    }
}

/* --- CUSTOM WINDOW SIDE SCROLLBAR COLOR --- */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--dark-blue);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary-blue), var(--accent-cyan));
    border-radius: 6px;
    border: 2px solid var(--dark-blue);
}

    ::-webkit-scrollbar-thumb:hover {
        background: var(--primary-hover);
    }

/* Firefox Scrollbar */
html {
    scrollbar-width: thin;
    scrollbar-color: var(--primary-blue) var(--dark-blue);
    scroll-behavior: smooth;
}

#navMenu > ul > li:nth-child(6) > .nav-link {
    color: var(--primary-blue) !important;
}

#navMenu > ul > li:nth-child(6) > .nav-link .menu-icon,
#navMenu > ul > li:nth-child(6) > .nav-link .fa-chevron-down {
    color: var(--primary-blue) !important;
}

/* Blog submenu */
#navMenu > ul > li:nth-child(6) > .submenu > li:first-child > a {
    color: var(--primary-blue) !important;
    background: rgba(56,189,248,.12);
}

    #navMenu > ul > li:nth-child(6) > .submenu > li:first-child > a i {
        color: var(--primary-blue) !important;
    }

/* Submenu open */
#navMenu > ul > li:nth-child(6) > .submenu {
    display: block !important;
}
.footer-bottom span {
    color: var(--accent-cyan);
    font-weight: 700;
}