:root {
      --primary: #2563eb;
      --primary-dark: #1e40af;
      --text-main: #111827;
      --text-muted: #6b7280;
      /* Muted Gray */
      --bg-light: #f8fafc;
      --bg-white: #ffffff;
      --border: #e2e8f0;

      --sidebar-width: 320px;
      --container-width: 1200px;
    }
:root{
  --fs-xxxl: clamp(2.4rem, 4vw, 3rem);      
  --fs-xxl: clamp(2rem, 3.2vw, 2.5rem);      
  --fs-xl: 1.9rem;                        

  --fs-lg: 1.25rem;                        
  --fs-1_2: 1.2rem;  

 
  --fs-md: 1.1rem;                          
  --fs-base: 1.5rem;                           
  --fs-sm: 1.2rem;                          
  --fs-xs: 0.82rem;                          
  --fs-tiny: 0.75rem;                        

  --fs-1_25: 1.25rem;             
  --fs-0_96: 0.96rem;             
  --fs-0_95: 0.95rem;
  --fs-0_88: 0.88rem;
  --fs-2_1: 2.1rem;               
  --fs-1_9: 1.9rem;              

  /* FONT WEIGHTS */
  --fw-bold: 700;
  --fw-semibold: 600;
  --fw-medium: 500;
  --fw-normal: 400;

  /* LINE HEIGHTS */
  --lh-hero-title: 1.1;
  --lh-title: 1.2;
  --lh-normal: 1.65;

}
    * {
      box-sizing: border-box;
    }

    body {
      font-family: 'Inter', sans-serif;
      margin: 0;
      padding: 0;
      background-color: var(--bg-white);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

    .wrapper {
      max-width: var(--container-width);
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1fr var(--sidebar-width);
      gap: 80px;
      padding: 60px 20px;
    }

    .breadcrumb {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 24px;
    }

    .breadcrumb a {
      text-decoration: none;
      color: var(--text-muted);
      transition: color 0.2s;
    }

    .breadcrumb a:hover {
      color: var(--primary);
    }

    .badge {
      background: #eff6ff;
      color: var(--primary);
      padding: 6px 12px;
      border-radius: 20px;
      font-weight: 700;
      font-size: 12px;
      letter-spacing: 0.5px;
      text-transform: uppercase;
    }

    h1 {
      font-size: 48px;
      letter-spacing: -1.5px;
      margin: 15px 0 20px 0;
      color: var(--text-main);
      line-height: 1.1;
    }

    .meta-info {
      display: flex;
      gap: 20px;
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 40px;
      border-bottom: 1px solid var(--border);
      padding-bottom: 20px;
    }

    .meta-info i {
      margin-right: 6px;
    }

    .definition-card {
      background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
      border: 1px solid var(--border);
      border-left: 5px solid var(--primary);
      padding: 32px;
      border-radius: 12px;
      font-size: 20px;
      font-weight: 500;
      color: #334155;
      margin-bottom: 40px;
      box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.05);
      line-height: 1.6;
      position: relative;
      overflow: hidden;
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }

    .definition-card::after {
      content: "";
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 0 0, rgba(37, 99, 235, 0.18), transparent 60%);
      opacity: 0.6;
      pointer-events: none;
    }

    .definition-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 18px 40px -10px rgba(37, 99, 235, 0.25);
    }

    .article-content h2 {
      margin-top: 50px;
      font-size: 28px;
      letter-spacing: -0.5px;
    }

    .article-content p {
      font-size: var(--fs-sm);
      color: #475569;
      margin-bottom: 24px;
      line-height: 1.7;
    }

    .article-content ul {
      margin-bottom: 30px;
      padding-left: 20px;
    }

    .article-content li {
      margin-bottom: 12px;
      color: #475569;
      font-size: 18px;
    }

    .article-content strong {
      color: var(--text-main);
    }

    .inline-cta {
      background: #1e293b;
      color: white;
      padding: 40px;
      border-radius: 16px;
      text-align: center;
      margin-top: 80px;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
      position: relative;
      overflow: hidden;
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }

    .inline-cta::before {
      content: "";
      position: absolute;
      top: -40px;
      right: -40px;
      width: 160px;
      height: 160px;
      border-radius: 999px;
      background: radial-gradient(circle, rgba(59, 130, 246, 0.4), transparent 65%);
      filter: blur(4px);
    }

    .inline-cta::after {
      content: "";
      position: absolute;
      bottom: -60px;
      left: -60px;
      width: 220px;
      height: 220px;
      border-radius: 999px;
      background: radial-gradient(circle, rgba(248, 250, 252, 0.18), transparent 70%);
      filter: blur(6px);
    }

    .inline-cta h3 {
      margin-top: 0;
      font-size: 24px;
      margin-bottom: 10px;
      position: relative;
      z-index: 1;
    }

    .inline-cta p {
      position: relative;
      z-index: 1;
    }

    .inline-cta:hover {
      transform: translateY(-3px);
      box-shadow: 0 26px 55px rgba(15, 23, 42, 0.6);
    }

    .btn-cta-light {
      background: white;
      color: #1e293b;
      padding: 14px 32px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: 700;
      display: inline-block;
      margin-top: 20px;
      transition: transform 0.2s, box-shadow 0.2s;
      position: relative;
      z-index: 1;
    }

    .btn-cta-light:hover {
      transform: scale(1.05) translateY(-1px);
      box-shadow: 0 14px 30px rgba(15, 23, 42, 0.35);
    }

   
    .sidebar {
      position: sticky;
      top: 100px;
      height: fit-content;
    }

    .sidebar-widget {
      background: white;
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 24px;
      margin-bottom: 24px;
      box-shadow: 0 10px 25px rgba(15, 23, 42, 0.06);
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    }

    .sidebar-widget:hover {
      transform: translateY(-3px);
      box-shadow: 0 18px 40px rgba(15, 23, 42, 0.18);
      border-color: #bfdbfe;
    }

    .sidebar-title {
      font-size: 13px;
      text-transform: uppercase;
      letter-spacing: 1.2px;
      color: var(--text-muted);
      font-weight: 700;
      margin-bottom: 20px;
    }

    .related-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .related-list li {
      margin-bottom: 16px;
      border-bottom: 1px solid #f1f5f9;
      padding-bottom: 16px;
    }

    .related-list li:last-child {
      border: none;
      padding-bottom: 0;
      margin-bottom: 0;
    }

    .related-list a {
      text-decoration: none;
      color: var(--text-main);
      font-weight: 600;
      display: block;
      font-size: 16px;
    }

    .related-list a:hover {
      color: var(--primary);
    }

    .related-list span {
      display: block;
      font-size: 13px;
      color: var(--text-muted);
      margin-top: 4px;
    }

    .share-icons {
      display: flex;
      gap: 10px;
    }

    .share-btn {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      border: 1px solid var(--border);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-muted);
      cursor: pointer;
      transition: all 0.2s;
      background: white;
    }

    .share-btn:hover {
      background: var(--bg-light);
      color: var(--primary);
      border-color: var(--primary);
      transform: translateY(-2px);
    }

    .features-section {
      background-color: #f8fafc;
      padding: 100px 20px;
      text-align: center;
      border-top: 1px solid var(--border);
    }

    .features-section h2 {
      max-width: 700px;
      margin: 0 auto 60px auto;
      font-size: 36px;
      color: var(--text-main);
      line-height: 1.3;
      letter-spacing: -0.5px;
    }

    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 50px;
      max-width: 1000px;
      margin: 0 auto;
    }

    .feature-item {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 20px;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .feature-item:hover {
      transform: translateY(-5px);
    }

    .icon-circle {
      width: 70px;
      height: 70px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 28px;
      color: white;
      box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    }

    .bg-teal {
      background: #14b8a6;
    }

    .bg-purple {
      background: #8b5cf6;
    }

    .bg-sky {
      background: #0ea5e9;
    }

    .bg-red {
      background: #f43f5e;
    }

    .bg-blue {
      background: #3b82f6;
    }

    .bg-yellow {
      background: #f59e0b;
    }

    .feature-title {
      font-weight: 600;
      color: #4b5563;
      font-size: 18px;
    }

    .read-next-section {
      background-color: white;
      padding: 100px 20px;
      max-width: 1200px;
      margin: 0 auto;
    }

    .section-heading-left {
      font-size: 28px;
      font-weight: 700;
      margin-bottom: 40px;
      color: var(--text-main);
      border-bottom: 2px solid #f1f5f9;
      padding-bottom: 20px;
    }

    .cards-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 40px;
    }

    .article-card {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: 16px;
      overflow: hidden;
      transition: all 0.3s ease;
      text-decoration: none;
      display: flex;
      flex-direction: column;
      box-shadow: 0 10px 24px rgba(15, 23, 42, 0.06);
    }

    .article-card:hover {
      box-shadow: 0 20px 40px -5px rgba(0, 0, 0, 0.1);
      transform: translateY(-5px);
      border-color: #bfdbfe;
    }

    .card-image {
      height: 200px;
      background-color: #f1f5f9;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }

    .card-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s;
    }

    .article-card:hover .card-image img {
      transform: scale(1.05);
    }

    .card-content {
      padding: 28px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .card-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin: 0 0 12px 0;
      line-height: 1.4;
    }

    .card-date {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* Footer */
    footer {
      background: #0f172a;
      color: white;
      padding: 60px 20px;
      text-align: center;
      font-size: 14px;
      color: #94a3b8;
    }

    footer a {
      color: white;
      text-decoration: none;
      margin: 0 10px;
    }

    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition:
        opacity 0.6s cubic-bezier(0.19, 1, 0.22, 1),
        transform 0.6s cubic-bezier(0.19, 1, 0.22, 1);
    }

    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }

    .site-header.scrolled {
      box-shadow: 0 18px 40px rgba(15, 23, 42, 0.18);
      transform: translateY(-1px);
      transition: box-shadow 0.25s ease, transform 0.25s ease;
    }

    @media (max-width: 1024px) {
      .wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
      }

      .sidebar {
        display: none;
      }

      h1 {
        font-size: 36px;
      }

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

    @media (max-width: 600px) {
      .features-grid {
        grid-template-columns: 1fr;
      }

      h1 {
        font-size: 32px;
      }

      .wrapper {
        padding: 40px 16px;
      }
    }