:root {
      --primary: #F97316;
      --primary-hover: #FB923C;
      --bg-light: #FFF7ED;
      --bg-dark: #2B1708;
      --text-dark: #1F2937;
      --accent: #FED7AA;
      --base-black: rgb(0,0,0);
      --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body { font-family: var(--font-sans); color: var(--text-dark); background-color: var(--bg-light); line-height: 1.6; }
    a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
    
    header { background-color: rgba(255, 247, 237, 0.95); backdrop-filter: blur(8px); position: sticky; top: 0; z-index: 100; border-bottom: 1px solid var(--accent); }
    .header-container { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; padding: 15px 20px; }
    .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; line-height: 1; color: var(--bg-dark); }
    
    .nav-desktop { display: flex; align-items: center; gap: 24px; }
    .nav-desktop a { font-weight: 500; color: var(--bg-dark); font-size: 15px; }
    .nav-desktop a:hover { color: var(--primary); }
    .btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 20px; font-weight: 600; border-radius: 8px; font-size: 14px; cursor: pointer; transition: all 0.3s ease; border: none; }
    .btn-primary { background-color: var(--primary); color: #fff; }
    
    .menu-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
    .menu-toggle span { display: block; width: 24px; height: 3px; background-color: var(--bg-dark); margin: 5px 0; }

    .drawer { position: fixed; top: 0; left: -100%; width: 280px; height: 100vh; background-color: var(--bg-light); z-index: 1000; box-shadow: 4px 0 20px rgba(0,0,0,0.15); transition: left 0.3s ease; padding: 24px; display: flex; flex-direction: column; }
    .drawer.active { left: 0; }
    .drawer-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 30px; border-bottom: 1px solid var(--accent); padding-bottom: 15px; }
    .drawer-close { background: none; border: none; font-size: 24px; color: var(--bg-dark); cursor: pointer; }
    .drawer-nav { display: flex; flex-direction: column; gap: 20px; flex-grow: 1; }
    .drawer-nav a { font-size: 16px; font-weight: 600; color: var(--bg-dark); }
    .drawer-overlay { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; background: rgba(0,0,0,0.5); z-index: 999; display: none; }
    .drawer-overlay.active { display: block; }

    
    .about-banner { background: var(--bg-dark); color: #fff; padding: 80px 20px; text-align: center; }
    .about-banner h1 { font-size: 40px; font-weight: 800; color: #fff; margin-bottom: 20px; }
    .about-banner p { color: var(--accent); font-size: 18px; max-width: 700px; margin: 0 auto; }

    .about-main { max-width: 900px; margin: 0 auto; padding: 80px 20px; }
    .intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-bottom: 60px; }
    .intro-card { background: #fff; border-radius: 12px; padding: 30px; border: 1px solid var(--accent); }
    .intro-card h3 { font-size: 22px; font-weight: 700; color: var(--bg-dark); margin-bottom: 15px; }
    .intro-card p { color: #4B5563; font-size: 15px; line-height: 1.8; }

    .timeline { position: relative; margin-top: 60px; padding-left: 30px; border-left: 2px solid var(--primary); }
    .timeline-item { position: relative; margin-bottom: 40px; }
    .timeline-item::before { content: ""; position: absolute; left: -36px; top: 4px; width: 10px; height: 10px; border-radius: 50%; background-color: var(--primary); border: 2px solid #fff; }
    .timeline-year { font-size: 18px; font-weight: 800; color: var(--primary); margin-bottom: 5px; }
    .timeline-desc { font-size: 15px; color: #4B5563; }

    
    footer { background-color: var(--bg-dark); color: #9CA3AF; padding: 60px 20px 30px 20px; border-top: 2px solid var(--primary); font-size: 14px; }
    .footer-container { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
    .footer-brand .logo span { color: #fff; }
    .footer-brand p { margin-top: 15px; max-width: 320px; line-height: 1.8; }
    .footer-title { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 20px; }
    .footer-links { list-style: none; }
    .footer-links li { margin-bottom: 12px; }
    .footer-links a:hover { color: #fff; }
    .footer-bottom { max-width: 1200px; margin: 0 auto; border-top: 1px solid rgba(255,255,255,0.1); padding-top: 30px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 15px; }

    @media (max-width: 768px) {
      .nav-desktop { display: none; }
      .menu-toggle { display: block; }
      .intro-grid { grid-template-columns: 1fr; }
      .footer-container { grid-template-columns: 1fr; }
    }