:root {
        --primary: #f51414;
        --bg: #ffffff;
        --surface: #f8fafc;
        --border: #e2e8f0;
        --text: #0f172a;
        --muted: #64748b;
        --nav-height: 64px;
        --top-bar-height: 50px;
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    
    body {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
        background: var(--bg);
        color: var(--text);
        line-height: 1.6;
    }
    
    a { text-decoration: none; color: inherit; transition: 0.2s; }
    ul { list-style: none; }

    .container { max-width: 900px; margin: 0 auto; padding: 20px; }

    /* Top Auth Bar */
    .top-auth-bar {
        background: var(--surface);
        border-bottom: 1px solid var(--border);
        height: var(--top-bar-height);
        display: flex; align-items: center; justify-content: center;
        gap: 15px; position: relative; z-index: 1002;
    }
    .auth-svg-link { display: block; transition: transform 0.1s ease, opacity 0.2s; }
    .auth-svg-link:hover { opacity: 0.9; }
    .auth-svg-link:active { transform: translateY(1px); }
    .auth-svg-link img { display: block; height: 36px; width: auto; }

    /* Header */
    header {
        position: sticky; top: 0; height: var(--nav-height);
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid var(--border);
        z-index: 1000;
        box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.02);
    }
    
    .nav-container {
        width: 100%; max-width: 1000px; margin: 0 auto; padding: 0 20px;
        height: 100%; display: flex; justify-content: space-between; align-items: center;
    }

    .logo { font-weight: 900; font-size: 1.3rem; color: var(--primary); text-transform: uppercase; letter-spacing: -0.5px; }

    .nav-links { display: flex; align-items: center; gap: 25px; }
    .nav-links a { font-size: 0.95rem; font-weight: 700; color: var(--muted); padding: 5px 0; }
    .nav-links a:hover { color: var(--primary); }

    .hamburger { display: none; cursor: pointer; background: none; border: none; color: var(--text); }
    
    /* CLEAN MOBILE MENU */
    .mobile-menu {
        position: fixed; top: var(--nav-height); left: 0; right: 0;
        background: var(--bg); border-bottom: 1px solid var(--border);
        padding: 10px 20px 20px 20px; 
        display: flex; flex-direction: column; 
        transform: translateY(-150%); transition: transform 0.3s ease-in-out;
        z-index: 999; box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
        max-height: 80vh; overflow-y: auto;
    }
    .mobile-menu.open { transform: translateY(0); }
    .mobile-menu a { 
        font-size: 1.05rem; font-weight: 600; color: var(--text); 
        padding: 12px 0; border-bottom: 1px solid var(--border); 
        display: block;
    }
    .mobile-menu a:last-child { border-bottom: none; }
    .mobile-menu a:hover { color: var(--primary); padding-left: 5px; }

    /* Hero */
    .hero { text-align: center; margin: 40px 0 60px 0; }
    .hero h1 { font-size: 2.5rem; margin-bottom: 15px; line-height: 1.2; color: var(--text); letter-spacing: -1px; }
    .hero-img-wrapper { position: relative; margin: 30px auto; max-width: 700px; border-radius: 12px; overflow: hidden; box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04); border: 1px solid var(--border); }
    .hero-img { width: 100%; height: auto; display: block; }
    .hero-cta-wrapper { display: flex; justify-content: center; margin-top: 25px; }
    .hero-cta-link { display: block; transition: transform 0.2s, opacity 0.2s; }
    .hero-cta-link:hover { transform: translateY(-2px); opacity: 0.95; }
    .hero-cta-link img { display: block; width: auto; height: 50px; box-shadow: 0 10px 20px -5px rgba(0,0,0,0.15); border-radius: 50px; }

    /* Table */
    .table-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 40px 0; border-radius: 8px; border: 1px solid var(--border); box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1); background: var(--surface); }
    .data-table { width: 100%; border-collapse: collapse; min-width: 500px; }
    .data-table td { padding: 16px 24px; border-bottom: 1px solid var(--border); font-size: 1rem; }
    .data-table tr:last-child td { border-bottom: none; }
    .data-table td:first-child { font-weight: 600; color: var(--muted); width: 35%; background: #fff; }
    .data-table td:last-child { font-weight: 700; color: var(--text); background: var(--surface); }

    /* Blog */
    .blog-search { width: 100%; padding: 15px; border: 1px solid var(--border); border-radius: 8px; font-size: 1rem; margin-bottom: 30px; }
    .blog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
    .blog-card { border: 1px solid var(--border); border-radius: 8px; padding: 20px; background: var(--surface); transition: 0.2s; text-decoration: none; display: block; }
    .blog-card:hover { transform: translateY(-3px); box-shadow: 0 10px 20px -5px rgba(0,0,0,0.1); border-color: var(--primary); }
    .blog-card h2 { font-size: 1.2rem; margin-bottom: 10px; color: var(--text); }
    .blog-card p { font-size: 0.9rem; color: var(--muted); line-height: 1.5; }

    /* Content & Footer */
    .content { max-width: 800px; margin: 0 auto; }
    .content p { margin-bottom: 24px; color: #334155; font-size: 1.05rem; line-height: 1.75; }
    .content h2 { color: var(--text); margin: 40px 0 20px 0; font-size: 1.8rem; letter-spacing: -0.5px; }
    footer { margin-top: 80px; padding: 60px 20px; border-top: 1px solid var(--border); text-align: center; background: var(--surface); }
    .footer-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 24px; margin-bottom: 30px; }
    .footer-links a { color: var(--muted); font-size: 0.95rem; font-weight: 500; }
    .footer-links a:hover { color: var(--primary); }
    .copyright { color: var(--muted); font-size: 0.85rem; opacity: 0.8; }

    @media (max-width: 768px) { .nav-links { display: none; } .hamburger { display: block; } .hero h1 { font-size: 2rem; padding: 0 10px; } .hero-img-wrapper { margin: 20px; } .container { padding: 15px; } .mobile-menu { top: var(--nav-height); } }