:root {
        --ui-demo-white: #ffffff;
        --ui-demo-bg: #fbfbfd;
        --ui-demo-card-bg: #ffffff;
        --ui-demo-border: rgba(0, 0, 0, 0.06);
        --ui-demo-border-strong: rgba(0, 0, 0, 0.1);
        --ui-demo-text-primary: #1d1d1f;
        --ui-demo-text-secondary: #6e6e73;
        --ui-demo-text-tertiary: #aeaeb2;
        --ui-demo-accent: #0071e3;
        --ui-demo-accent-light: rgba(0, 113, 227, 0.08);
      }


      .ui-demo-section {
        font-family:
          -apple-system, "SF Pro Display", "SF Pro Text", BlinkMacSystemFont,
          sans-serif;
        background: var(--ui-demo-bg);
        color: var(--ui-demo-text-primary);
        -webkit-font-smoothing: antialiased;
      }


      .section {
        max-width: 1100px;
        margin: 0 auto;
        padding: 0 24px;
      }

      .section-header {
        text-align: center;
        padding: 60px 0 20px;
      }

      .eyebrow {
        font-size: 12px;
        font-weight: 600;
        letter-spacing: 0.12em;
        text-transform: uppercase;
        color: var(--ui-demo-accent);
        margin-bottom: 16px;
      }


      .section-header p {
        font-size: 19px;
        color: var(--ui-demo-text-secondary);
        max-width: 500px;
        margin: 0 auto;
        line-height: 1.5;
      }

      /* ── Cards Logic ── */
      .cards-container {
        position: relative;
      }

      .card-scene {
        height: 110vh; /* Extra height for scrolling room */
        display: flex;
        align-items: flex-start;
      }

      .card-scene:last-child {
        height: auto;
        padding-bottom: 150px;
      }

      .step-card {
        background: var(--ui-demo-card-bg);
        border-radius: 28px;
        border: 1px solid var(--ui-demo-border);
        display: grid;
        grid-template-columns: 1fr 1.1fr;
        min-height: 480px;
        width: 100%;
        position: sticky;
        overflow: hidden;
        box-shadow: 0 4px 30px rgba(0, 0, 0, 0.03);
        transition:
          transform 0.3s ease,
          box-shadow 0.3s ease;
      }

      /* Stacking Offset (Gap from top) */
      .card-scene:nth-child(1) .step-card {
        z-index: 1;
        top: 60px;
      }
      .card-scene:nth-child(2) .step-card {
        z-index: 2;
        top: 90px;
      }
      .card-scene:nth-child(3) .step-card {
        z-index: 3;
        top: 120px;
      }
      .card-scene:nth-child(4) .step-card {
        z-index: 4;
        top: 150px;
      }

      /* ── Card Content ── */
      .card-text {
        padding: 60px;
        display: flex;
        flex-direction: column;
        justify-content: center;
      }

      .step-label {
        font-size: 13px;
        font-weight: 600;
        color: var(--ui-demo-text-tertiary);
        margin-bottom: 12px;
      }

      .card-text h3 {
        font-size: 28px;
        font-weight: 700;
        margin-bottom: 16px;
        letter-spacing: -0.02em;
      }

      .card-text p {
        font-size: 16px;
        color: var(--ui-demo-text-secondary);
        line-height: 1.6;
        margin-bottom: 30px;
      }

      .feature-list {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: 12px;
      }

      .feature-list li {
        display: flex;
        align-items: center;
        gap: 12px;
        font-size: 14px;
        color: var(--ui-demo-text-primary);
        font-weight: 500;
      }

      .check-wrap {
        width: 20px;
        height: 20px;
        border-radius: 50%;
        background: var(--ui-demo-accent);
        display: flex;
        align-items: center;
        justify-content: center;
        color: white;
      }

      .check-wrap svg {
        width: 12px;
        height: 12px;
      }

      /* ── Card Visual ── */
      .ui-demo-card-visual {
        background: #f5f5f7;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 40px;
        border-left: 1px solid var(--ui-demo-border);
        height: 100%;
      }

      .ui-demo-card-visual img {
        width: 100%;
        height: auto;
        border-radius: 12px;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        object-fit: cover;
      }

      .after-spacer {
        height: 40vh;
        text-align: center;
        color: var(--ui-demo-text-tertiary);
      }

      /* ── Responsive ── */
      @media (max-width: 900px) {
        .step-card {
          grid-template-columns: 1fr;
        }
        .ui-demo-card-visual {
          height: 300px;
          border-left: none;
          border-top: 1px solid var(--ui-demo-border);
        }
        .card-scene {
          height: auto;
          margin-bottom: 40px;
        }
        .step-card {
          position: relative;
          top: 0 !important;
        }
      }

      @media (max-width: 600px) {
       .card-text h3{
        font-size: 20px;
       }
       .card-text p{
        font-size: 14px;
       }
      }