:root{--bg-primary: #0f172a;--bg-secondary: #1e293b;--bg-tertiary: #334155;--text-primary: #f8fafc;--text-secondary: #94a3b8;--accent: #f59e0b;--accent-hover: #d97706;--success: #10b981;--border: #334155;--font-sans: "Plus Jakarta Sans", system-ui, -apple-system, sans-serif;--font-mono: "JetBrains Mono", monospace}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-primary);color:var(--text-primary);font-family:var(--font-sans);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none;transition:color .2s ease}a:hover{color:var(--accent-hover)}.container{max-width:1200px;margin:0 auto;padding:0 24px}.app-header{background-color:#0f172acc;backdrop-filter:blur(12px);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}.header-container{height:72px;display:flex;justify-content:space-between;align-items:center}.brand{display:flex;align-items:center;gap:8px}.brand-icon{font-size:1.8rem}.brand-name{font-size:1.4rem;font-weight:800;letter-spacing:-.02em}.brand-accent{color:var(--accent)}.nav-links{display:flex;align-items:center;gap:24px}.nav-link{color:var(--text-secondary);font-weight:600;font-size:.95rem}.nav-link:hover,.nav-link.active{color:var(--text-primary)}.db-badge{background-color:#10b98126;color:var(--success);border:1px solid var(--success);font-size:.75rem;font-weight:700;padding:4px 10px;border-radius:9999px}.main-content{padding:64px 0}.hero-section{text-align:center;max-width:800px;margin:0 auto 64px}.hero-badge{display:inline-block;background-color:var(--bg-secondary);border:1px solid var(--border);color:var(--accent);font-size:.85rem;font-weight:700;padding:6px 14px;border-radius:9999px;margin-bottom:24px}.hero-title{font-size:3rem;font-weight:800;line-height:1.15;letter-spacing:-.04em;margin-bottom:24px}.hero-subtitle{font-size:1.25rem;color:var(--text-secondary);margin-bottom:40px;line-height:1.5}.section-title-wrap{display:flex;align-items:center;gap:12px;margin-bottom:24px;border-bottom:2px solid var(--border);padding-bottom:12px}.title-icon{font-size:1.8rem}.section-title-wrap h2{font-size:1.75rem;font-weight:800;color:var(--text-primary)}.specs-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px}.spec-card-container{background-color:var(--bg-secondary);border:1px solid var(--border);border-radius:12px;padding:24px}.spec-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;border-bottom:1px solid var(--border);padding-bottom:12px}.spec-card-header h3{font-size:1.1rem;font-weight:700;color:var(--accent)}.engine-badge{background-color:var(--bg-primary);border:1px solid var(--border);color:var(--text-secondary);font-size:.75rem;padding:3px 8px;border-radius:4px;font-weight:600}.specs-data-table{width:100%;border-collapse:collapse}.specs-data-table th,.specs-data-table td{padding:10px 0;font-size:.9rem;border-bottom:1px solid rgba(51,65,85,.4);text-align:left}.specs-data-table th{color:var(--text-secondary);font-weight:500;width:45%}.specs-data-table td{color:var(--text-primary);font-weight:600}.highlight-spec{font-family:var(--font-mono);color:var(--accent)}.sub-val{font-size:.75rem;color:var(--text-secondary);font-weight:400}.categories-grid{display:flex;flex-direction:column;gap:32px}.category-block{background-color:#1e293b33;border:1px solid var(--border);border-radius:12px;padding:24px}.category-header-title{font-size:1.25rem;font-weight:800;color:var(--text-primary);margin-bottom:16px;border-bottom:2px solid var(--accent);padding-bottom:6px;display:inline-block}.category-guides-list{display:flex;flex-direction:column;gap:16px}.guide-item-link{background-color:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;padding:20px;display:flex;justify-content:space-between;align-items:center;transition:all .2s ease}.guide-item-link:hover{border-color:var(--accent);transform:translate(4px)}.guide-item-content{flex:1;text-align:left}.guide-item-content h4{font-size:1.1rem;font-weight:700;color:var(--text-primary);margin-bottom:6px}.guide-item-content p{font-size:.85rem;color:var(--text-secondary);margin-bottom:12px;line-height:1.4}.guide-meta{display:flex;align-items:center;gap:12px;font-family:var(--font-mono);font-size:.75rem}.diff-badge{padding:2px 8px;border-radius:4px;text-transform:uppercase;font-weight:700}.diff-badge.beginner{background-color:#10b98126;color:var(--success)}.diff-badge.intermediate{background-color:#f59e0b26;color:var(--accent)}.diff-badge.advanced{background-color:#ef444426;color:#ef4444}.arrow-icon{font-size:1.2rem;margin-left:16px;color:var(--accent)}.no-guides-alert{background-color:var(--bg-secondary);border:1px border var(--border);border-radius:8px;padding:24px;text-align:center;color:var(--text-secondary)}.app-footer{border-top:1px solid var(--border);padding:48px 0;margin-top:96px;text-align:center;font-size:.9rem;color:var(--text-secondary)}.footer-container{display:flex;flex-direction:column;gap:12px}.tech-sub{font-family:var(--font-mono);font-size:.75rem}