/* =============================================
       CSS CUSTOM PROPERTIES
    ============================================= */
    :root {
      --primary:        #155dfc;
      --primary-dark:   #0e49d4;
      --primary-light:  #4a7ffd;
      --primary-pale:   #eff4ff;
      --white:          #ffffff;
      --bg:             #ffffff;
      --bg-section:     #f5f8ff;
      --card-bg:        #ffffff;
      --card-border:    #dde6fd;
      --text-dark:      #0d1b3e;
      --text-body:      #374151;
      --text-muted:     #6b7280;
      --text-light:     #9ca3af;
      --gradient-brand: linear-gradient(135deg, #155dfc 0%, #3b72fd 100%);
      --shadow-sm:      0 2px 8px rgba(21, 93, 252, 0.08);
      --shadow-md:      0 6px 24px rgba(21, 93, 252, 0.14);
      --shadow-lg:      0 12px 40px rgba(21, 93, 252, 0.18);
      --radius:         16px;
      --radius-sm:      10px;
      --transition:     all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    * { margin: 0; padding: 0; box-sizing: border-box; }
    html { scroll-behavior: smooth; }

    body {
      font-family: 'Inter', sans-serif;
      background-color: var(--bg);
      color: var(--text-body);
      line-height: 1.6;
      overflow-x: hidden;
    }

    h1, h2, h3, h4, h5, h6 {
      font-family: 'Plus Jakarta Sans', sans-serif;
      font-weight: 700;
      color: var(--text-dark);
    }

    ::-webkit-scrollbar { width: 5px; }
    ::-webkit-scrollbar-track { background: var(--bg); }
    ::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

    /* =============================================
       UTILITIES
    ============================================= */
    .gradient-text {
      background: var(--gradient-brand);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .section-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: var(--primary-pale);
      border: 1px solid rgba(21, 93, 252, 0.2);
      color: var(--primary);
      font-size: 0.82rem;
      font-weight: 600;
      padding: 6px 16px;
      border-radius: 50px;
      margin-bottom: 14px;
      font-family: 'Plus Jakarta Sans', sans-serif;
    }

    /* =============================================
       BUTTONS
    ============================================= */
    .btn-brand {
      background: var(--gradient-brand);
      border: none;
      color: #fff;
      font-family: 'Plus Jakarta Sans', sans-serif;
      font-weight: 600;
      padding: 11px 26px;
      border-radius: 50px;
      font-size: 0.93rem;
      transition: var(--transition);
      box-shadow: 0 4px 18px rgba(21, 93, 252, 0.3);
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      cursor: pointer;
    }
    .btn-brand:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 28px rgba(21, 93, 252, 0.45);
      color: #fff;
    }

    .btn-outline-brand {
      background: transparent;
      border: 2px solid var(--primary);
      color: var(--primary);
      font-family: 'Plus Jakarta Sans', sans-serif;
      font-weight: 600;
      padding: 9px 22px;
      border-radius: 50px;
      font-size: 0.9rem;
      transition: var(--transition);
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-outline-brand:hover {
      background: var(--primary-pale);
      color: var(--primary-dark);
      transform: translateY(-2px);
    }

    /* =============================================
       LANGUAGE SWITCHER
    ============================================= */
    .lang-switch {
      display: inline-flex;
      background: var(--primary-pale);
      border: 1px solid rgba(21, 93, 252, 0.2);
      border-radius: 50px;
      padding: 3px;
      gap: 2px;
    }
    .lang-switch button {
      border: none;
      background: transparent;
      font-family: 'Plus Jakarta Sans', sans-serif;
      font-weight: 600;
      font-size: 0.78rem;
      color: var(--text-muted);
      padding: 4px 12px;
      border-radius: 50px;
      cursor: pointer;
      transition: var(--transition);
    }
    .lang-switch button.active {
      background: var(--primary);
      color: #fff;
    }

    /* =============================================
       NAVBAR
    ============================================= */
    .navbar-custom {
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(21, 93, 252, 0.1);
      padding: 14px 0;
      transition: var(--transition);
      position: fixed;
      width: 100%;
      top: 0;
      z-index: 1000;
    }
    .navbar-custom.scrolled {
      padding: 10px 0;
      box-shadow: var(--shadow-md);
    }

    .navbar-brand-logo {
      font-family: 'Plus Jakarta Sans', sans-serif;
      font-weight: 800;
      font-size: 1.5rem;
      background: var(--gradient-brand);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 8px;
      letter-spacing: -0.5px;
    }
    .navbar-brand-logo .logo-icon {
      width: 36px; height: 36px;
      background: var(--gradient-brand);
      border-radius: 10px;
      display: flex; align-items: center; justify-content: center;
      color: white; font-size: 1.1rem; flex-shrink: 0;
      -webkit-text-fill-color: white;
    }

    .nav-link-custom {
      color: var(--text-body) !important;
      font-family: 'Plus Jakarta Sans', sans-serif;
      font-weight: 500;
      font-size: 0.93rem;
      padding: 7px 14px !important;
      border-radius: 8px;
      transition: var(--transition);
      text-decoration: none;
    }
    .nav-link-custom:hover,
    .nav-link-custom.active-link {
      color: var(--primary) !important;
      background: var(--primary-pale);
    }

    .navbar-toggler-custom {
      background: var(--primary-pale);
      border: 1.5px solid rgba(21, 93, 252, 0.25);
      border-radius: 10px;
      width: 42px; height: 42px;
      display: flex; align-items: center; justify-content: center;
      cursor: pointer;
      transition: var(--transition);
    }
    .navbar-toggler-custom:hover {
      background: var(--primary);
      border-color: var(--primary);
    }
    .navbar-toggler-custom:hover .toggler-icon { color: white; }
    .toggler-icon {
      color: var(--primary);
      font-size: 1.35rem;
      transition: var(--transition);
      pointer-events: none;
    }

    @media (max-width: 991px) {
      .navbar-collapse {
        background: #ffffff;
        border: 1px solid var(--card-border);
        border-radius: var(--radius);
        padding: 16px 12px;
        margin-top: 10px;
        box-shadow: var(--shadow-md);
      }
      .navbar-collapse .navbar-nav { gap: 4px; }
      .navbar-collapse .d-flex {
        margin-top: 12px;
        flex-direction: column;
        gap: 8px;
      }
      .navbar-collapse .btn-brand,
      .navbar-collapse .btn-outline-brand { justify-content: center; width: 100%; }
      .navbar-collapse .lang-switch { width: 100%; justify-content: center; }
    }

    /* =============================================
       PAGE HERO (BLOG HEADER)
    ============================================= */
    .page-hero {
      background: linear-gradient(160deg, #ffffff 0%, #eff4ff 50%, #dde6fd 100%);
      padding: 140px 0 80px;
      position: relative;
      overflow: hidden;
    }
    .page-hero::before {
      content: '';
      position: absolute;
      top: -100px; right: -80px;
      width: 500px; height: 500px;
      background: radial-gradient(circle, rgba(21, 93, 252, 0.08) 0%, transparent 70%);
      border-radius: 50%;
      pointer-events: none;
    }
    .page-hero-title {
      font-size: clamp(2rem, 4.5vw, 3.2rem);
      font-weight: 800;
      line-height: 1.15;
      margin-bottom: 16px;
      color: var(--text-dark);
    }
    .page-hero-subtitle {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 560px;
      line-height: 1.75;
    }

    /* =============================================
       SEARCH BAR
    ============================================= */
    .search-bar-wrap {
      position: relative;
      max-width: 460px;
    }
    .search-bar-wrap .bi-search {
      position: absolute;
      left: 18px; top: 50%;
      transform: translateY(-50%);
      color: var(--text-light);
      font-size: 1rem;
      pointer-events: none;
    }
    .search-input {
      width: 100%;
      padding: 13px 20px 13px 46px;
      border: 1.5px solid var(--card-border);
      border-radius: 50px;
      font-family: 'Inter', sans-serif;
      font-size: 0.93rem;
      color: var(--text-body);
      background: #fff;
      transition: var(--transition);
      outline: none;
    }
    .search-input:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 4px rgba(21, 93, 252, 0.1);
    }
    .search-input::placeholder { color: var(--text-light); }

    /* =============================================
       CATEGORY TAGS
    ============================================= */
    .category-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 40px;
    }
    .cat-tag {
      border: 1.5px solid var(--card-border);
      background: #fff;
      color: var(--text-muted);
      font-family: 'Plus Jakarta Sans', sans-serif;
      font-weight: 600;
      font-size: 0.82rem;
      padding: 6px 16px;
      border-radius: 50px;
      cursor: pointer;
      transition: var(--transition);
      text-decoration: none;
      display: inline-block;
    }
    .cat-tag:hover,
    .cat-tag.active {
      background: var(--primary);
      border-color: var(--primary);
      color: #fff;
    }

    /* =============================================
       FEATURED POST
    ============================================= */
    .featured-post {
      background: var(--card-bg);
      border: 1.5px solid var(--card-border);
      border-radius: 22px;
      overflow: hidden;
      transition: var(--transition);
      text-decoration: none;
      display: block;
      margin-bottom: 48px;
    }
    .featured-post:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
      border-color: rgba(21, 93, 252, 0.3);
    }
    .featured-post-img {
      width: 100%;
      height: 320px;
      object-fit: cover;
      display: block;
    }
    @media (min-width: 768px) {
      .featured-post { display: flex; }
      .featured-post-img { width: 50%; height: auto; min-height: 360px; }
      .featured-post-body { flex: 1; }
    }
    .featured-post-body {
      padding: 36px 40px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .post-category-tag {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      background: var(--primary-pale);
      color: var(--primary);
      font-family: 'Plus Jakarta Sans', sans-serif;
      font-weight: 700;
      font-size: 0.73rem;
      text-transform: uppercase;
      letter-spacing: 0.8px;
      padding: 4px 12px;
      border-radius: 50px;
      margin-bottom: 14px;
    }
    .featured-label {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      background: var(--gradient-brand);
      color: #fff;
      font-family: 'Plus Jakarta Sans', sans-serif;
      font-weight: 700;
      font-size: 0.73rem;
      text-transform: uppercase;
      letter-spacing: 0.8px;
      padding: 4px 12px;
      border-radius: 50px;
      margin-bottom: 14px;
      margin-right: 8px;
    }
    .featured-post-title {
      font-size: clamp(1.3rem, 2.5vw, 1.75rem);
      font-weight: 800;
      color: var(--text-dark);
      line-height: 1.3;
      margin-bottom: 14px;
      transition: var(--transition);
    }
    .featured-post:hover .featured-post-title { color: var(--primary); }

    .post-excerpt {
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.75;
      margin-bottom: 24px;
    }
    .post-meta {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
    }
    .post-author {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .author-avatar {
      width: 34px; height: 34px;
      border-radius: 50%;
      background: var(--gradient-brand);
      display: flex; align-items: center; justify-content: center;
      color: #fff;
      font-size: 0.85rem;
      font-weight: 700;
      font-family: 'Plus Jakarta Sans', sans-serif;
      flex-shrink: 0;
    }
    .author-name {
      font-family: 'Plus Jakarta Sans', sans-serif;
      font-weight: 600;
      font-size: 0.85rem;
      color: var(--text-dark);
    }
    .post-date {
      font-size: 0.82rem;
      color: var(--text-light);
    }
    .post-read-time {
      font-size: 0.82rem;
      color: var(--text-light);
      display: flex; align-items: center; gap: 4px;
    }

    /* =============================================
       BLOG CARD GRID
    ============================================= */
    .blog-card {
      background: var(--card-bg);
      border: 1.5px solid var(--card-border);
      border-radius: var(--radius);
      overflow: hidden;
      transition: var(--transition);
      text-decoration: none;
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .blog-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-5px);
      border-color: rgba(21, 93, 252, 0.3);
    }
    .blog-card::after {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 3px;
      background: var(--gradient-brand);
      transform: scaleX(0);
      transform-origin: left;
      transition: var(--transition);
    }
    .blog-card:hover::after { transform: scaleX(1); }
    .blog-card { position: relative; }

    .blog-card-img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
      transition: var(--transition);
    }
    .blog-card:hover .blog-card-img { transform: scale(1.04); }
    .blog-card-img-wrap {
      overflow: hidden;
    }

    .blog-card-body {
      padding: 22px 22px 24px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }
    .blog-card-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-dark);
      line-height: 1.4;
      margin-bottom: 10px;
      transition: var(--transition);
    }
    .blog-card:hover .blog-card-title { color: var(--primary); }

    .blog-card-excerpt {
      color: var(--text-muted);
      font-size: 0.875rem;
      line-height: 1.7;
      margin-bottom: 18px;
      flex: 1;
    }
    .blog-card-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 8px;
      border-top: 1px solid var(--card-border);
      padding-top: 14px;
      margin-top: auto;
    }
    .read-more-link {
      font-family: 'Plus Jakarta Sans', sans-serif;
      font-weight: 600;
      font-size: 0.83rem;
      color: var(--primary);
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 4px;
      transition: var(--transition);
    }
    .read-more-link:hover { gap: 8px; }

    /* =============================================
       SIDEBAR
    ============================================= */
    .sidebar-widget {
      background: var(--card-bg);
      border: 1.5px solid var(--card-border);
      border-radius: var(--radius);
      padding: 26px 24px;
      margin-bottom: 24px;
    }
    .widget-title {
      font-family: 'Plus Jakarta Sans', sans-serif;
      font-weight: 700;
      font-size: 1rem;
      color: var(--text-dark);
      margin-bottom: 18px;
      padding-bottom: 12px;
      border-bottom: 2px solid var(--primary-pale);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .widget-title i { color: var(--primary); }

    /* Popular posts list */
    .popular-post-item {
      display: flex;
      gap: 12px;
      padding: 12px 0;
      border-bottom: 1px solid var(--card-border);
      text-decoration: none;
      transition: var(--transition);
    }
    .popular-post-item:last-child { border-bottom: none; padding-bottom: 0; }
    .popular-post-item:first-child { padding-top: 0; }
    .popular-post-thumb {
      width: 64px; height: 64px;
      border-radius: 10px;
      object-fit: cover;
      flex-shrink: 0;
    }
    .popular-post-info {}
    .popular-post-title {
      font-family: 'Plus Jakarta Sans', sans-serif;
      font-weight: 600;
      font-size: 0.86rem;
      color: var(--text-dark);
      line-height: 1.4;
      margin-bottom: 4px;
      transition: var(--transition);
    }
    .popular-post-item:hover .popular-post-title { color: var(--primary); }
    .popular-post-date {
      font-size: 0.75rem;
      color: var(--text-light);
      display: flex; align-items: center; gap: 4px;
    }

    /* Tag cloud */
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .tag-pill {
      background: var(--bg-section);
      border: 1px solid var(--card-border);
      color: var(--text-muted);
      font-size: 0.78rem;
      font-weight: 500;
      padding: 4px 12px;
      border-radius: 50px;
      text-decoration: none;
      transition: var(--transition);
    }
    .tag-pill:hover {
      background: var(--primary-pale);
      border-color: var(--primary);
      color: var(--primary);
    }

    /* Newsletter widget */
    .newsletter-widget {
      background: linear-gradient(135deg, #eff4ff 0%, #dde6fd 100%);
      border: 1.5px solid rgba(21, 93, 252, 0.2);
    }
    .newsletter-input {
      width: 100%;
      padding: 10px 16px;
      border: 1.5px solid var(--card-border);
      border-radius: 10px;
      font-size: 0.88rem;
      font-family: 'Inter', sans-serif;
      outline: none;
      background: #fff;
      transition: var(--transition);
      margin-bottom: 10px;
    }
    .newsletter-input:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(21, 93, 252, 0.1);
    }

    /* =============================================
       PAGINATION
    ============================================= */
    .pagination-custom {
      display: flex;
      align-items: center;
      gap: 6px;
      margin-top: 48px;
      justify-content: center;
    }
    .page-btn {
      width: 40px; height: 40px;
      border-radius: 10px;
      border: 1.5px solid var(--card-border);
      background: #fff;
      color: var(--text-body);
      font-family: 'Plus Jakarta Sans', sans-serif;
      font-weight: 600;
      font-size: 0.88rem;
      display: flex; align-items: center; justify-content: center;
      cursor: pointer;
      transition: var(--transition);
      text-decoration: none;
    }
    .page-btn:hover,
    .page-btn.active {
      background: var(--primary);
      border-color: var(--primary);
      color: #fff;
    }
    .page-btn.arrow { width: auto; padding: 0 14px; gap: 6px; }
    .page-btn.disabled { opacity: 0.35; pointer-events: none; }

    /* =============================================
       FOOTER
    ============================================= */
    footer {
      background: linear-gradient(160deg, #0d1b3e 0%, #1a2f6e 100%);
      color: rgba(255, 255, 255, 0.65);
      padding: 72px 0 32px;
      margin-top: 96px;
    }

    .footer-brand {
      font-family: 'Plus Jakarta Sans', sans-serif;
      font-weight: 800;
      font-size: 1.6rem;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 14px;
      text-decoration: none;
    }
    .footer-logo-icon {
      width: 40px; height: 40px;
      background: var(--gradient-brand);
      border-radius: 11px;
      display: flex; align-items: center; justify-content: center;
      color: white; font-size: 1.15rem;
    }

    .footer-desc {
      font-size: 0.88rem;
      line-height: 1.8;
      max-width: 300px;
    }

    .footer-title {
      font-family: 'Plus Jakarta Sans', sans-serif;
      font-weight: 700;
      font-size: 0.9rem;
      color: rgba(255,255,255,0.9);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 18px;
    }

    .footer-links {
      list-style: none;
      padding: 0; margin: 0;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      color: rgba(255,255,255,0.5);
      text-decoration: none;
      font-size: 0.88rem;
      transition: var(--transition);
    }
    .footer-links a:hover { color: #fff; padding-left: 4px; }

    .social-links { display: flex; gap: 10px; }
    .social-link {
      width: 38px; height: 38px;
      background: rgba(255,255,255,0.07);
      border: 1px solid rgba(255,255,255,0.12);
      border-radius: 10px;
      display: flex; align-items: center; justify-content: center;
      color: rgba(255,255,255,0.6);
      font-size: 1rem;
      transition: var(--transition);
      text-decoration: none;
    }
    .social-link:hover {
      background: var(--primary);
      border-color: var(--primary);
      color: #fff;
      transform: translateY(-3px);
    }

    .footer-divider {
      height: 1px;
      background: rgba(255,255,255,0.08);
      margin: 40px 0 24px;
    }
    .footer-copyright {
      font-size: 0.82rem;
      color: rgba(255,255,255,0.35);
      margin: 0;
      display: flex; align-items: center; gap: 5px; flex-wrap: wrap;
    }

    /* =============================================
       ANIMATIONS
    ============================================= */
    @keyframes fadeInUp {
      from { opacity: 0; transform: translateY(28px); }
      to   { opacity: 1; transform: translateY(0); }
    }
    @keyframes fadeInDown {
      from { opacity: 0; transform: translateY(-16px); }
      to   { opacity: 1; transform: translateY(0); }
    }

    .animate-on-scroll {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.6s ease, transform 0.6s ease;
    }
    .animate-on-scroll.animated {
      opacity: 1;
      transform: translateY(0);
    }
    .delay-1 { transition-delay: 0.1s; }
    .delay-2 { transition-delay: 0.2s; }
    .delay-3 { transition-delay: 0.3s; }
    .delay-4 { transition-delay: 0.4s; }
    .delay-5 { transition-delay: 0.5s; }