:root {
      --primary: rgb(48,209,88);
      --primary-hover: rgb(38,199,78);
      --secondary: #1D7BFF;
      --secondary-hover: #1063D6;
      --bg-dark: #0F172A;
      --text-dark: #1E293B;
      --text-light: #64748B;
      --bg-light: #F8FAFC;
      --border-color: #E2E8F0;
      --max-width: 1200px;
    }
    * { margin: 0; padding: 0; box-sizing: border-box; }
    body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; color: var(--text-dark); background-color: #FFF; line-height: 1.6; }
    a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
    
    header { background: #FFFFFF; border-bottom: 1px solid var(--border-color); position: sticky; top: 0; z-index: 100; height: 70px; }
    .header-container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; height: 100%; }
    .logo { display: inline-flex; align-items: center; gap: 12px; }
    .logo img { display: block; height: 40px; width: auto; max-width: 160px; object-fit: contain; flex-shrink: 0; }
    .logo span { display: inline-block; font-size: 18px; font-weight: 800; line-height: 1; color: var(--bg-dark); white-space: nowrap; }
    .nav-menu { display: flex; gap: 24px; align-items: center; }
    .nav-menu a { font-size: 15px; font-weight: 500; color: var(--text-dark); padding: 8px 12px; border-radius: 6px; }
    .nav-menu a:hover { color: var(--primary); background: rgba(48,209,88,0.05); }
    .nav-actions { display: flex; align-items: center; gap: 16px; }
    .btn-register { background: var(--primary); color: #FFF !important; padding: 10px 20px; border-radius: 8px; font-weight: 600; font-size: 14px; box-shadow: 0 4px 12px rgba(48,209,88,0.2); }
    .menu-btn { display: none; background: none; border: none; font-size: 24px; cursor: pointer; color: var(--bg-dark); }
    
    
    .drawer-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); z-index: 1000; opacity: 0; pointer-events: none; transition: opacity 0.3s ease; }
    .drawer-overlay.active { opacity: 1; pointer-events: auto; }
    .drawer { position: fixed; top: 0; left: -280px; width: 280px; height: 100%; background: #FFF; z-index: 1001; transition: left 0.3s ease; padding: 24px; display: flex; flex-direction: column; gap: 30px; }
    .drawer.active { left: 0; }
    .drawer-header { display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--border-color); padding-bottom: 16px; }
    .drawer-close { background: none; border: none; font-size: 24px; cursor: pointer; color: var(--text-light); }
    .drawer-nav { display: flex; flex-direction: column; gap: 16px; }
    
    
    .about-hero { background: radial-gradient(circle at center, #1E293B 0%, #0F172A 100%); color: #FFF; padding: 80px 20px; text-align: center; }
    .about-title { font-size: 40px; font-weight: 800; margin-bottom: 20px; }
    .about-desc { font-size: 18px; color: #94A3B8; max-width: 800px; margin: 0 auto; }

    
    .about-container { max-width: 900px; margin: 60px auto; padding: 0 20px; }
    .section-block { margin-bottom: 50px; }
    .section-heading { font-size: 24px; font-weight: 700; color: var(--bg-dark); margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
    .section-heading::before { content: ""; display: inline-block; width: 4px; height: 24px; background: var(--primary); border-radius: 2px; }
    .about-p { font-size: 16px; color: var(--text-dark); line-height: 1.8; margin-bottom: 20px; text-align: justify; }

    
    .goals-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 24px; margin-top: 30px; }
    .goal-item { border: 1px solid var(--border-color); padding: 24px; border-radius: 12px; background: var(--bg-light); }
    .goal-icon { font-size: 28px; margin-bottom: 14px; }
    .goal-title { font-weight: 700; font-size: 18px; margin-bottom: 8px; color: var(--bg-dark); }
    .goal-desc { font-size: 14px; color: var(--text-light); }

    
    footer { background: #0F172A; color: #94A3B8; padding: 80px 20px 40px; border-top: 1px solid #1E293B; }
    .footer-container { max-width: var(--max-width); margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; margin-bottom: 60px; }
    .footer-brand { display: flex; flex-direction: column; gap: 20px; }
    .footer-brand .logo span { color: #FFF; }
    .footer-group h4 { color: #FFF; font-size: 16px; font-weight: 700; margin-bottom: 20px; }
    .footer-group ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }
    .footer-group ul a { font-size: 14px; }
    .footer-group ul a:hover { color: #FFF; }
    .footer-bottom { max-width: var(--max-width); margin: 0 auto; padding-top: 40px; border-top: 1px solid #1E293B; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; font-size: 13px; }

    @media (max-width: 768px) {
      .nav-menu, .nav-actions .btn-register { display: none; }
      .menu-btn { display: block; }
      .footer-container { grid-template-columns: 1fr; }
    }