:root {
            --bg-primary: #f8f9fa;
            --bg-secondary: #f1f3f5;
            --bg-card: #ffffff;
            --bg-card-hover: #f1f5f9;
            --border: #e2e8f0;
            --border-light: #cbd5e1;
            --border-accent: rgba(8,145,178,0.2);
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-tertiary: #94a3b8;
            --accent: #0891b2;
            --accent-hover: #0e7490;
            --accent-dim: rgba(8,145,178,0.06);
            --accent-glow: rgba(8,145,178,0.15);
            --font-sans: 'DM Sans', -apple-system, sans-serif;
            --font-mono: 'JetBrains Mono', monospace;
            --font-display: 'DM Sans', -apple-system, sans-serif;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 12px;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; -webkit-font-smoothing: antialiased; }
        body { background: var(--bg-primary); color: var(--text-primary); font-family: var(--font-sans); font-size: 16px; font-weight: 400; letter-spacing: 0.01em; overflow-x: hidden; }
        a { color: var(--accent); text-decoration: none; transition: color 0.15s ease; }
        a:hover { color: var(--accent-hover); }
        ::-webkit-scrollbar { width: 4px; }
        ::-webkit-scrollbar-track { background: transparent; }
        ::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 2px; }


        /* Scroll Reveal */
        .reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s cubic-bezier(0.16,1,0.3,1), transform 0.6s cubic-bezier(0.16,1,0.3,1); }
        .reveal.visible { opacity: 1; transform: translateY(0); }
        .reveal-delay-1 { transition-delay: 0.1s; }
        .reveal-delay-2 { transition-delay: 0.2s; }
        .reveal-delay-3 { transition-delay: 0.3s; }

        /* Nav */
        .nav {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            padding: 0 2rem; height: 72px;
            display: flex; align-items: center; justify-content: space-between;
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow 0.3s ease;
        }
        .nav.scrolled { box-shadow: 0 4px 30px rgba(0,0,0,0.06); }
        .nav-brand { display: flex; align-items: center; gap: 14px; text-decoration: none; }
        .nav-logo { width: 42px; height: 42px; background: linear-gradient(135deg, var(--accent), #06b6d4); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 16px; color: white; }
        .nav-name { font-weight: 700; font-size: 16px; letter-spacing: 1px; color: var(--text-primary); }
        .nav-name span { color: var(--accent); }
        .nav-links { display: flex; align-items: center; gap: 6px; }
        .nav-links a { color: var(--text-secondary); text-decoration: none; padding: 8px 16px; border-radius: 8px; font-size: 14px; font-weight: 500; transition: all 0.3s; }
        .nav-links a:hover { color: var(--text-primary); background: rgba(59,130,246,0.08); }
        .nav-links a.active { color: var(--accent); }
        .nav-hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; z-index: 100001; }
        .nav-hamburger span { width: 24px; height: 2px; background: var(--text-primary); transition: all 0.3s; border-radius: 2px; }

        /* Container */
        .container { max-width: 1200px; margin: 0 auto; padding: 0 32px; position: relative; z-index: 1; }

        /* Page Header */
        .page-header { padding: 120px 0 60px; }
        .section-label { font-family: var(--font-mono); font-size: 13px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); margin-bottom: 12px; }
        .section-heading { font-family: var(--font-display); font-size: 28px; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; color: var(--text-primary); margin-bottom: 16px; line-height: 1.3; }
        .section-desc { font-size: 16px; color: var(--text-secondary); max-width: 600px; line-height: 1.7; }
        .section-divider { width: 48px; height: 2px; background: var(--accent); margin: 20px 0 0; opacity: 0.5; }

        /* Blog Posts */
        .posts { display: flex; flex-direction: column; gap: 20px; padding-bottom: 100px; }
        .post-card {
            background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg);
            padding: 32px; transition: all 0.25s ease; text-decoration: none; display: block;
        }
        .post-card:hover { border-color: var(--border-accent); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(8,145,178,0.06); }
        .post-meta { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
        .post-date { font-family: var(--font-mono); font-size: 12px; color: var(--text-tertiary); }
        .post-tag {
            font-size: 10px; padding: 3px 10px; background: var(--accent-dim); border: 1px solid var(--border-accent);
            border-radius: 4px; color: var(--accent); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em;
        }
        .post-card h2 { font-family: var(--font-sans); font-size: 20px; font-weight: 700; color: var(--text-primary); margin-bottom: 10px; line-height: 1.3; }
        .post-card p { font-size: 15px; color: var(--text-secondary); line-height: 1.7; }
        .read-more { display: inline-block; margin-top: 14px; font-size: 13px; font-weight: 600; color: var(--accent); }

        /* Footer */
        footer {
            padding: 40px 0; border-top: 1px solid var(--border);
            background: var(--bg-primary);
        }
        .footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px; }
        .footer-left { display: flex; align-items: center; gap: 16px; }
        .footer-copy { font-size: 13px; color: var(--text-tertiary); }
        .footer-links { display: flex; gap: 24px; flex-wrap: wrap; }
        .footer-links a { font-size: 13px; color: var(--text-tertiary); transition: color 0.15s; }
        .footer-links a:hover { color: var(--accent); }

        /* Mobile */
        
        .nav-dropdown-wrap{position:relative}.nav-dropdown{display:none;position:absolute;top:calc(100% + 8px);left:50%;transform:translateX(-50%);min-width:340px;padding:8px;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-lg,12px);box-shadow:0 12px 40px rgba(0,0,0,0.1);z-index:1001}.nav-dropdown-wrap:hover .nav-dropdown,.nav-dropdown-wrap:focus-within .nav-dropdown{display:block}.nav-dropdown a{display:block;padding:12px 16px;border-radius:var(--radius-sm,6px);text-decoration:none;transition:background 0.15s}.nav-dropdown a:hover{background:var(--bg-secondary)}.nav-dropdown a strong{display:block;font-size:14px;font-weight:600;color:var(--text-primary);margin-bottom:2px}.nav-dropdown .dd-desc{display:block;font-size:13px;color:var(--text-secondary);line-height:1.4}.nav-dropdown-divider{height:1px;background:var(--border);margin:6px 0}.nav-dropdown-all strong{color:var(--accent)!important}
        @media (max-width: 768px) {
            .nav { padding: 0 1rem; }
            .nav-links { display: none; position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; background: rgb(255,255,255); flex-direction: column; align-items: center; justify-content: center; gap: 24px; z-index: 99999; }
            .nav-links.open { display: flex; }
            .nav-links a { font-size: 20px; padding: 12px 24px; }
            .nav-hamburger { display: flex; }
            .nav-dropdown-wrap{width:100%;text-align:center}.nav-dropdown{position:static;transform:none;display:block;min-width:unset;box-shadow:none;border:none;background:transparent;padding:0}.nav-dropdown a{padding:8px 24px;text-align:center}.nav-dropdown a strong{font-size:18px}.nav-dropdown .dd-desc{display:none}.nav-dropdown-divider{display:none}.nav-dropdown-wrap>a{display:none}
            .container { padding: 0 20px; }
            .page-header { padding: 100px 0 40px; }
            .section-heading { font-size: 22px; }
            .post-card { padding: 24px; }
            .post-card h2 { font-size: 18px; }
            .footer-inner { flex-direction: column; text-align: center; }
            .footer-links { justify-content: center; }
        }
        @media (max-width: 480px) {
            .section-heading { font-size: 20px; }
        }
        @media (prefers-reduced-motion: reduce) {
            *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
            .reveal { opacity: 1; transform: none; }
        }

        .skip-link { position: absolute; top: -100px; left: 16px; background: var(--accent); color: #000; padding: 12px 24px; border-radius: 0 0 8px 8px; font-weight: 700; font-size: 14px; z-index: 10001; text-decoration: none; transition: top 0.2s; }
        .skip-link:focus { top: 0; }