:root {
      --primary: #1D7BFF;
      --primary-hover: #1062d6;
      --accent: rgb(98, 0, 238);
      --dark-bg: #0B0F19;
      --dark-card: #151D30;
      --light-bg: #F8FAFC;
      --text-dark: #0F172A;
      --text-gray: #64748B;
      --text-light: #F8FAFC;
      --border-dark: rgba(255, 255, 255, 0.08);
      --border-light: rgba(0, 0, 0, 0.08);
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body { font-family: -apple-system, BlinkMacSystemFont, sans-serif; background-color: var(--light-bg); color: var(--text-dark); line-height: 1.6; }
    
    
    header { background-color: var(--dark-bg); border-bottom: 1px solid var(--border-dark); position: sticky; top: 0; z-index: 100; backdrop-filter: blur(10px); }
    .header-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; height: 70px; display: flex; justify-content: space-between; align-items: center; }
    .logo { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
    .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(--text-light); white-space: nowrap; }
    .logo-text-fallback { display: none; color: var(--text-light); font-size: 18px; font-weight: bold; }
    .desktop-nav { display: flex; align-items: center; gap: 30px; }
    .desktop-nav a { color: #94A3B8; text-decoration: none; font-size: 15px; font-weight: 500; transition: color 0.3s; }
    .desktop-nav a:hover, .desktop-nav a.active { color: var(--primary); }
    .menu-btn { display: none; background: none; border: none; color: var(--text-light); font-size: 24px; cursor: pointer; }
    .drawer-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.6); z-index: 200; opacity: 0; visibility: hidden; transition: 0.3s; }
    .drawer-overlay.open { opacity: 1; visibility: visible; }
    .mobile-drawer { position: fixed; top: 0; left: -280px; width: 280px; height: 100%; background-color: var(--dark-bg); border-right: 1px solid var(--border-dark); z-index: 201; padding: 20px; display: flex; flex-direction: column; gap: 30px; transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1); }
    .mobile-drawer.open { left: 0; }
    .drawer-header { display: flex; justify-content: space-between; align-items: center; }
    .drawer-close { background: none; border: none; color: var(--text-light); font-size: 24px; cursor: pointer; }
    .drawer-nav { display: flex; flex-direction: column; gap: 20px; }
    .drawer-nav a { color: #94A3B8; text-decoration: none; font-size: 16px; padding: 10px 0; border-bottom: 1px solid var(--border-dark); }
    .drawer-nav a:hover { color: var(--primary); }

    
    .dl-hero {
      background: linear-gradient(180deg, var(--dark-bg) 0%, #111827 100%);
      color: var(--text-light);
      padding: 80px 20px;
      text-align: center;
    }
    .dl-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 60px 20px;
    }
    .dl-options {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
      margin-bottom: 60px;
    }
    .dl-card {
      background: #FFF;
      border: 1px solid var(--border-light);
      border-radius: 12px;
      padding: 40px 30px;
      text-align: center;
      transition: 0.3s;
    }
    .dl-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 15px 30px rgba(0,0,0,0.05);
    }
    .dl-icon {
      font-size: 48px;
      margin-bottom: 20px;
    }
    .dl-card h3 {
      font-size: 20px;
      font-weight: 600;
      margin-bottom: 12px;
    }
    .dl-card p {
      color: var(--text-gray);
      font-size: 14px;
      margin-bottom: 25px;
    }
    .btn-dl {
      background-color: var(--primary);
      color: var(--text-light);
      border: none;
      padding: 12px 24px;
      border-radius: 6px;
      font-weight: 600;
      text-decoration: none;
      display: inline-block;
      width: 100%;
      transition: 0.3s;
    }
    .btn-dl:hover {
      background-color: var(--primary-hover);
    }
    .step-section {
      background-color: #F1F5F9;
      padding: 60px 20px;
      border-radius: 12px;
    }
    .step-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 30px;
    }
    .step-item {
      background: #FFF;
      padding: 24px;
      border-radius: 8px;
    }
    .step-num {
      width: 32px;
      height: 32px;
      background-color: var(--primary);
      color: #FFF;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      margin-bottom: 15px;
    }

    
    footer { background-color: var(--dark-bg); color: #94A3B8; border-top: 1px solid var(--border-dark); padding: 60px 20px 30px 20px; }
    .footer-grid { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; margin-bottom: 40px; }
    .footer-brand { display: flex; flex-direction: column; gap: 15px; }
    .footer-logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
    .footer-logo img { height: 35px; width: auto; }
    .footer-logo span { color: var(--text-light); font-size: 18px; font-weight: 700; }
    .footer-links h4 { color: var(--text-light); margin-bottom: 15px; font-size: 16px; }
    .footer-links ul { list-style: none; }
    .footer-links li { margin-bottom: 10px; }
    .footer-links a { color: #94A3B8; text-decoration: none; font-size: 14px; transition: color 0.3s; }
    .footer-links a:hover { color: var(--primary); }
    .footer-bottom { max-width: 1200px; margin: 0 auto; padding-top: 30px; border-top: 1px solid var(--border-dark); display: flex; justify-content: space-between; align-items: center; font-size: 13px; }

    @media (max-width: 992px) {
      .dl-options { grid-template-columns: 1fr; }
      .step-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 768px) {
      .desktop-nav { display: none; }
      .menu-btn { display: block; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; gap: 15px; text-align: center; }
    }