:root {
      --primary: #1D7BFF;
      --primary-hover: #0A66E4;
      --accent: rgb(52,199,89);
      --accent-hover: #2dbd52;
      --dark-bg: #0B1120;
      --dark-card: rgba(15, 23, 42, 0.8);
      --dark-border: rgba(255, 255, 255, 0.08);
      --text-white: #F8FAFC;
      --text-gray: #94A3B8;
      --light-bg: #F8FAFC;
      --light-border: #E2E8F0;
      --light-text: #334155;
      --light-title: #0F172A;
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    body { font-family: var(--font-family); background-color: var(--light-bg); color: var(--light-text); line-height: 1.6; }
    a { color: inherit; text-decoration: none; transition: all 0.3s ease; }

    
    .header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; background: rgba(11, 17, 32, 0.85); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(255, 255, 255, 0.05); }
    .header-container { max-width: 1200px; margin: 0 auto; padding: 16px 20px; display: flex; align-items: center; justify-content: space-between; }
    .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: 20px; font-weight: 800; color: var(--text-white); }
    .nav-desktop { display: flex; align-items: center; gap: 32px; }
    .nav-desktop a { color: var(--text-gray); font-size: 15px; font-weight: 500; }
    .nav-desktop a:hover, .nav-desktop a.active { color: var(--primary); }
    .nav-btn { background: var(--accent); color: #fff !important; padding: 8px 20px; border-radius: 8px; font-weight: 600; font-size: 14px; }
    .menu-toggle { display: none; background: none; border: none; color: var(--text-white); cursor: pointer; }

    .drawer { position: fixed; top: 0; left: -280px; width: 280px; height: 100vh; background: var(--dark-bg); z-index: 2000; transition: left 0.3s ease; display: flex; flex-direction: column; border-right: 1px solid var(--dark-border); }
    .drawer.open { left: 0; }
    .drawer-header { padding: 24px 20px; border-bottom: 1px solid var(--dark-border); display: flex; align-items: center; justify-content: space-between; }
    .drawer-close { background: none; border: none; color: var(--text-gray); font-size: 24px; cursor: pointer; }
    .drawer-nav { flex: 1; padding: 20px; overflow-y: auto; display: flex; flex-direction: column; gap: 16px; }
    .drawer-nav a { color: var(--text-gray); font-size: 16px; padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,0.02); }
    .drawer-nav .nav-btn { text-align: center; margin-top: 10px; }
    .drawer-overlay { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; background: rgba(0,0,0,0.5); z-index: 1500; display: none; }
    .drawer-overlay.show { display: block; }

    .hero-banner { background: var(--dark-bg); padding: 120px 20px 60px; color: #fff; text-align: center; }

    
    .container { max-width: 900px; margin: 50px auto 80px; padding: 0 20px; }
    .content-box { background: #fff; border: 1px solid var(--light-border); border-radius: 20px; padding: 40px; margin-bottom: 40px; }
    .about-h2 { font-size: 24px; font-weight: 800; color: var(--light-title); margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
    .about-p { font-size: 16px; color: var(--light-text); line-height: 1.8; margin-bottom: 24px; text-indent: 2em; }
    
    .timeline { position: relative; margin: 40px 0; padding-left: 30px; border-left: 2px solid var(--light-border); }
    .timeline-item { position: relative; margin-bottom: 30px; }
    .timeline-item::before { content: ''; position: absolute; left: -37px; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: var(--primary); border: 2px solid #fff; }
    .timeline-year { font-weight: 800; color: var(--light-title); font-size: 18px; margin-bottom: 6px; }
    .timeline-text { font-size: 14px; color: var(--light-text); opacity: 0.85; }

    
    .footer { background: var(--dark-bg); color: var(--text-gray); border-top: 1px solid var(--dark-border); padding: 60px 20px 30px; }
    .footer-container { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
    .footer-brand { display: flex; flex-direction: column; gap: 16px; }
    .footer-title { color: var(--text-white); font-size: 16px; font-weight: 700; margin-bottom: 20px; }
    .footer-links { list-style: none; }
    .footer-links li { margin-bottom: 12px; }
    .footer-links a { font-size: 14px; }
    .footer-links a:hover { color: var(--primary); }
    .footer-bottom { max-width: 1200px; margin: 0 auto; border-top: 1px solid var(--dark-border); padding-top: 24px; display: flex; align-items: center; justify-content: space-between; font-size: 13px; }

    @media (max-width: 768px) {
      .nav-desktop { display: none; }
      .menu-toggle { display: block; }
      .footer-container { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
    }