:root {
            --primary-color: rgb(124, 58, 237);
            --primary-light: rgba(124, 58, 237, 0.1);
            --primary-hover: rgb(109, 40, 217);
            --dark-bg: #0f172a;
            --dark-card: #1e293b;
            --light-bg: #f8fafc;
            --text-dark: #0f172a;
            --text-light: #64748b;
            --border-color: #e2e8f0;
            --max-width: 1200px;
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-dark);
            background-color: #ffffff;
            line-height: 1.6;
        }

        a { color: inherit; text-decoration: none; transition: all 0.3s ease; }

        
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
        }

        .header-container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 15px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo { display: inline-flex; align-items: center; gap: 12px; }
        .logo img { display: block; height: 40px; width: auto; max-width: 160px; object-fit: contain; }
        .logo span {
            display: inline-block; font-size: 20px; font-weight: 800; line-height: 1; color: var(--text-dark);
            background: linear-gradient(135deg, var(--primary-color), #4f46e5); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
        }

        .nav-menu { display: flex; align-items: center; gap: 30px; }
        .nav-menu a { font-size: 15px; font-weight: 500; color: #334155; }
        .nav-menu a:hover, .nav-menu a.active { color: var(--primary-color); }

        .header-actions { display: flex; align-items: center; gap: 15px; }
        .btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 20px; border-radius: 8px; font-size: 14px; font-weight: 600; cursor: pointer; border: none; }
        .btn-outline { background-color: transparent; border: 1px solid var(--primary-color); color: var(--primary-color); }
        .btn-primary { background-color: var(--primary-color); color: #ffffff; }
        .menu-toggle { display: none; background: none; border: none; font-size: 24px; cursor: pointer; }

        
        .drawer-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.5); z-index: 2000; opacity: 0; visibility: hidden; transition: all 0.3s ease; }
        .drawer-overlay.active { opacity: 1; visibility: visible; }
        .drawer { position: fixed; top: 0; left: -300px; width: 300px; height: 100%; background-color: #ffffff; z-index: 2001; box-shadow: 5px 0 25px rgba(0,0,0,0.15); transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); display: flex; flex-direction: column; padding: 30px 20px; }
        .drawer.active { left: 0; }
        .drawer-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 40px; }
        .drawer-close { background: none; border: none; font-size: 28px; cursor: pointer; }
        .drawer-menu { display: flex; flex-direction: column; gap: 20px; overflow-y: auto; flex-grow: 1; }
        .drawer-menu a { font-size: 18px; font-weight: 600; color: var(--text-dark); padding: 10px 0; border-bottom: 1px solid var(--border-color); }
        .drawer-footer { margin-top: auto; display: flex; flex-direction: column; gap: 15px; }

        
        .about-banner {
            background-color: var(--dark-bg);
            color: #ffffff;
            padding: 160px 20px 100px;
            text-align: center;
        }

        .banner-container { max-width: 800px; margin: 0 auto; }
        .banner-container h1 { font-size: 40px; font-weight: 800; margin-bottom: 20px; }
        .banner-container p { font-size: 18px; color: #94a3b8; }

        .about-section { padding: 100px 20px; }
        .about-grid { max-width: var(--max-width); margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
        
        .about-img-box {
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0,0,0,0.1);
        }

        .about-content h2 { font-size: 32px; font-weight: 800; margin-bottom: 25px; color: var(--text-dark); }
        .about-content p { font-size: 16px; color: var(--text-light); margin-bottom: 20px; line-height: 1.8; }

        .history-timeline { background-color: var(--light-bg); padding: 100px 20px; }
        .timeline-container { max-width: 800px; margin: 0 auto; }
        .timeline-header { text-align: center; margin-bottom: 60px; }
        .timeline-header h2 { font-size: 32px; font-weight: 800; }
        
        .timeline-item { display: flex; gap: 30px; margin-bottom: 40px; position: relative; }
        .timeline-item::before {
            content: ''; position: absolute; left: 15px; top: 30px; bottom: -30px; width: 2px; background-color: var(--border-color);
        }
        .timeline-item:last-child::before { display: none; }
        
        .timeline-dot { width: 32px; height: 32px; border-radius: 50%; background-color: var(--primary-color); color: #ffffff; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; flex-shrink: 0; z-index: 2; }
        .timeline-info h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
        .timeline-info p { font-size: 14px; color: var(--text-light); }

        
        .footer { background-color: var(--dark-bg); color: #94a3b8; padding: 80px 20px 30px; border-top: 1px solid rgba(255, 255, 255, 0.05); }
        .footer-container { max-width: var(--max-width); margin: 0 auto; display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: 40px; margin-bottom: 60px; }
        .footer-brand { display: flex; flex-direction: column; gap: 20px; }
        .footer-brand .logo span { color: #ffffff; }
        .footer-desc { font-size: 14px; }
        .footer-heading { font-size: 16px; font-weight: 700; color: #ffffff; margin-bottom: 25px; }
        .footer-links { list-style: none; display: flex; flex-direction: column; gap: 15px; }
        .footer-links a { font-size: 14px; }
        .footer-links a:hover { color: var(--primary-color); }
        .footer-bottom { max-width: var(--max-width); margin: 0 auto; padding-top: 30px; border-top: 1px solid rgba(255, 255, 255, 0.05); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; font-size: 13px; }
        .footer-disclaimer { font-size: 11px; color: #64748b; margin-top: 20px; border-top: 1px solid rgba(255, 255, 255, 0.05); padding-top: 20px; line-height: 1.8; }

        @media (max-width: 992px) {
            .nav-menu, .header-actions { display: none; }
            .menu-toggle { display: block; }
            .about-grid { grid-template-columns: 1fr; }
            .footer-container { grid-template-columns: repeat(2, 1fr); }
        }

        @media (max-width: 768px) {
            .banner-container h1 { font-size: 30px; }
            .footer-container { grid-template-columns: 1fr; }
        }