:root{--bg-main: #f8fafc;--bg-card: #ffffff;--bg-sub: #f1f5f9;--text-main: #0f172a;--text-muted: #64748b;--border-color: #e2e8f0;--primary-color: #2563eb;--primary-hover: #1d4ed8;--header-bg: rgba(248, 250, 252, .85)}[data-theme=dark]{--bg-main: #020617;--bg-card: #0f172a;--bg-sub: #1e293b;--text-main: #f8fafc;--text-muted: #94a3b8;--border-color: #334155;--primary-color: #3b82f6;--primary-hover: #60a5fa;--header-bg: rgba(2, 6, 23, .85)}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Apple SD Gothic Neo,Pretendard Variable,Pretendard,sans-serif;background-color:var(--bg-main);color:var(--text-main);display:flex;flex-direction:column;min-height:100vh}main{flex:1}.main-header{position:sticky;top:0;background-color:var(--header-bg);backdrop-filter:blur(8px);border-bottom:1px solid var(--border-color);z-index:100}.header-container{max-width:1200px;margin:0 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p{color:var(--text-muted);font-size:clamp(.9rem,4vw,1rem);margin:0;word-break:keep-all;line-height:1.6}.comparison-table{width:100%;table-layout:fixed;border-collapse:collapse;margin-top:2rem;background:var(--bg-card);border-radius:12px;overflow:hidden}.comparison-table th,.comparison-table td{padding:.6rem;text-align:left;border-bottom:1px solid var(--border-color);color:var(--text-main)}.comparison-table th{background:var(--primary-color);font-size:clamp(.8rem,3vw,1rem);color:#fff;font-weight:700;border-bottom:none}.comparison-table td{font-size:clamp(.8rem,3vw,1rem)}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1rem}.info-card{background:var(--bg-sub);padding:1.5rem;border-radius:18px;border:1px solid var(--border-color);transition:.3s}.info-card:hover{transform:translateY(-5px);border-color:var(--primary-color)}.info-card h3{color:var(--primary-color);margin:0 0 1rem;font-size:clamp(1rem,4.5vw,1.25rem)}.info-card p{color:var(--text-muted);font-size:clamp(.9rem,4vw,1rem);margin:0;word-break:keep-all}.architecture-diagram{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:1rem;background-color:var(--bg-card);padding:2.5rem;border-radius:12px;margin:2rem 0;border:1px solid var(--border-color)}.diagram-step{display:flex;flex-direction:column;align-items:center;padding:1.2rem 1.5rem;background-color:var(--bg-main);border:1px dashed var(--primary-color);border-radius:8px;text-align:center;min-width:180px}.diagram-step.highlight{background-color:var(--primary-color);color:#fff;border-style:solid;font-weight:700}.step-title{display:block;font-size:clamp(.9rem,4vw,1rem);margin-bottom:.5rem;color:inherit}.step-desc{font-size:.9rem;opacity:.9}.diagram-arrow{color:var(--primary-color);font-size:clamp(.9rem,4vw,1rem);text-align:center;font-weight:700;line-height:.8}.code-snippet-box{background-color:#1e1e1e;border-radius:10px;overflow:hidden;margin:2rem 0;border:1px solid var(--border-color);box-shadow:0 4px 15px #0000001a}.code-header{background-color:#2d2d2d;padding:.7rem 1.2rem;display:flex;align-items:center;border-bottom:1px solid #444}.dot{width:12px;height:12px;border-radius:50%;margin-right:8px;display:inline-block}.dot.red{background-color:#ff5f56}.dot.yellow{background-color:#ffbd2e}.dot.green{background-color:#27c93f}.filename{color:#888;font-size:.85rem;margin-left:10px;font-family:monospace}.code-snippet-box pre{margin:0;padding:1.5rem;overflow-x:auto}.code-snippet-box code{font-family:Consolas,Courier New,monospace;color:#d4d4d4;font-size:.95rem;line-height:1.5;border:none;background:transparent;padding:0}.faq-list{display:flex;flex-direction:column;padding:.35rem;gap:2rem}.faq-item strong{font-size:clamp(1rem,4.5vw,1.25rem);color:var(--text-main);margin-bottom:.5rem;display:block}.faq-item p{color:var(--text-muted);margin:0}.security-pledge{background:var(--bg-sub);border:2px dashed var(--border-color);padding:1.5rem;border-radius:24px;text-align:center}.pledge-inner h3{color:var(--text-main);margin:1rem 0;font-size:clamp(1rem,4.5vw,1.25rem)}.pledge-inner p{color:var(--text-muted);font-size:clamp(.9rem,4vw,1rem);word-break:keep-all}.warning-text{color:#ef4444!important;font-weight:700;margin-top:1.5rem;font-size:clamp(.85rem,3.5vw,.9rem)!important}.pledge-quote{margin:1.5rem 0;padding:1rem;border-left:4px solid var(--primary-color);background:var(--bg-main);font-style:italic;color:var(--text-main);font-size:clamp(.85rem,3.5vw,.95rem);text-align:left;border-radius:0 8px 8px 0}@media(max-width:768px){.action-grid,.step-grid{grid-template-columns:1fr}.action-grid.col-3{grid-template-columns:repeat(2,1fr)!important}.action-grid.col-3 button:last-child{grid-column:span 2}.architecture-diagram{flex-direction:column;padding:1.5rem}.diagram-arrow{transform:rotate(90deg);margin:.5rem 0}.diagram-arrow.markhtml{transform:none!important}.options-grid{grid-template-columns:1fr;gap:1rem}.checkbox-grid{grid-template-columns:1fr 1fr}.btn-primary-large{max-width:100%}.category-tabs{overflow-x:auto;flex-wrap:nowrap;padding-bottom:.5rem}.tab-btn{flex-shrink:0}.converter-box{flex-direction:column;align-items:stretch;padding:1.5rem}.swap-btn{align-self:center;transform:rotate(90deg);margin:.5rem 0}.swap-btn:hover{transform:rotate(270deg)}.options-bar{flex-direction:column;align-items:flex-start;gap:.8rem}}