:root {
      --primary-color: #1D7BFF;
      --dark-ink: #0A0E17;
      --border-color: rgba(255, 255, 255, 0.08);
      --accent-pink: rgb(253, 121, 168);
      --text-main: #E2E8F0;
      --text-muted: #94A3B8;
    }

    * { margin: 0; padding: 0; box-sizing: border-box; }
    body { font-family: -apple-system, BlinkMacSystemFont, sans-serif; background-color: var(--dark-ink); color: var(--text-main); line-height: 1.6; }
    a { color: inherit; text-decoration: none; transition: 0.3s; }

    
    .site-header { position: fixed; top: 0; left: 0; width: 100%; z-index: 100; background: rgba(10, 14, 23, 0.85); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border-color); }
    .header-container { max-width: 1200px; margin: 0 auto; padding: 16px 24px; display: flex; align-items: center; justify-content: space-between; }
    .logo { display: inline-flex; align-items: center; gap: 12px; }
    .logo img { display: block; height: 38px; width: auto; max-width: 160px; object-fit: contain; }
    .logo span { font-size: 19px; font-weight: 800; color: #FFF; }
    .desktop-nav { display: flex; align-items: center; gap: 28px; }
    .desktop-nav a { font-size: 15px; font-weight: 500; color: var(--text-muted); }
    .desktop-nav a:hover { color: var(--primary-color); }
    .header-actions { display: flex; align-items: center; gap: 16px; }
    .btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 22px; border-radius: 6px; font-size: 14px; font-weight: 600; cursor: pointer; transition: 0.3s; }
    .btn-outline { border: 1px solid var(--primary-color); color: #FFF; background: rgba(29, 123, 255, 0.05); }
    .btn-outline:hover { background: var(--primary-color); }
    .btn-accent { background: var(--accent-pink); color: #0A0E17; border: none; }
    .btn-accent:hover { background: #FFF; }
    .mobile-menu-toggle { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 6px; }
    .mobile-menu-toggle span { display: block; width: 24px; height: 2px; background: #FFF; }

    
    .mobile-drawer-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.6); z-index: 199; opacity: 0; pointer-events: none; transition: opacity 0.3s; }
    .mobile-drawer-overlay.active { opacity: 1; pointer-events: auto; }
    .mobile-drawer { position: fixed; top: 0; left: -300px; width: 300px; height: 100%; background: var(--dark-ink); z-index: 200; border-right: 1px solid var(--border-color); display: flex; flex-direction: column; transition: left 0.3s; }
    .mobile-drawer.active { left: 0; }
    .drawer-header { padding: 24px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--border-color); }
    .drawer-close { background: none; border: none; font-size: 28px; color: #FFF; cursor: pointer; }
    .drawer-content { flex: 1; overflow-y: auto; padding: 24px; }
    .mobile-nav { display: flex; flex-direction: column; gap: 20px; }
    .mobile-nav a { font-size: 16px; font-weight: 500; color: var(--text-muted); }
    .mobile-nav a:hover { color: var(--primary-color); }
    .drawer-footer { padding: 24px; border-top: 1px solid var(--border-color); font-size: 13px; color: var(--text-muted); }

    
    .download-hero { padding: 160px 24px 60px; text-align: center; }
    .download-hero h1 { font-size: 40px; font-weight: 800; color: #FFF; margin-bottom: 16px; }
    .download-hero p { font-size: 16px; color: var(--text-muted); max-width: 600px; margin: 0 auto; }

    
    .platforms-section { max-width: 1200px; margin: 0 auto; padding: 40px 24px 100px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
    .platform-card { background: rgba(16, 22, 35, 0.6); border: 1px solid var(--border-color); border-radius: 12px; padding: 40px; text-align: center; transition: 0.3s; display: flex; flex-direction: column; justify-content: space-between; }
    .platform-card:hover { border-color: var(--primary-color); transform: translateY(-5px); }
    .platform-icon { font-size: 48px; margin-bottom: 24px; }
    .platform-card h3 { font-size: 22px; font-weight: 700; color: #FFF; margin-bottom: 12px; }
    .platform-card p { font-size: 14px; color: var(--text-muted); margin-bottom: 30px; line-height: 1.6; }

    
    .guide-section { background: rgba(16, 22, 35, 0.3); border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); padding: 80px 24px; }
    .guide-container { max-width: 900px; margin: 0 auto; }
    .guide-header { text-align: center; margin-bottom: 48px; }
    .guide-header h2 { font-size: 30px; color: #FFF; }
    .step-item { display: flex; gap: 24px; margin-bottom: 36px; }
    .step-num { width: 40px; height: 40px; border-radius: 50%; background: var(--accent-pink); color: #0A0E17; display: flex; align-items: center; justify-content: center; font-weight: 800; flex-shrink: 0; }
    .step-text h3 { font-size: 18px; color: #FFF; margin-bottom: 8px; }
    .step-text p { font-size: 15px; color: var(--text-muted); }

    
    .site-footer { background: #06090F; border-top: 1px solid var(--border-color); padding: 80px 24px 40px; color: var(--text-muted); }
    .footer-container { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: 40px; margin-bottom: 60px; }
    .footer-brand .logo { margin-bottom: 20px; }
    .footer-brand p { font-size: 14px; line-height: 1.6; max-width: 320px; }
    .footer-cols h4 { font-size: 15px; font-weight: 700; color: #FFF; margin-bottom: 24px; text-transform: uppercase; }
    .footer-cols ul { list-style: none; }
    .footer-cols ul li { margin-bottom: 12px; }
    .footer-cols ul li a { font-size: 14px; }
    .footer-cols ul li a:hover { color: var(--primary-color); }
    .footer-bottom { max-width: 1200px; margin: 0 auto; border-top: 1px solid var(--border-color); padding-top: 40px; display: flex; justify-content: space-between; align-items: center; font-size: 13px; }

    @media (max-width: 900px) {
      .platforms-section { grid-template-columns: 1fr; }
      .desktop-nav { display: none; }
      .mobile-menu-toggle { display: flex; }
    }