.shard-section-title{font-family:var(--font-display);color:var(--text-hi);text-align:center;z-index:1;margin:3rem 0 1.2rem;font-size:1.3rem;font-weight:700;position:relative}.shard-section-title:before{content:"";background:linear-gradient(90deg,#7c4dff,#e040fb);border-radius:2px;width:60px;height:3px;position:absolute;bottom:-6px;left:50%;transform:translate(-50%)}.shard-info-box{background:#0d1117;border-radius:6px;padding:.55rem .8rem .55rem 1.1rem;position:relative;overflow:hidden}.shard-info-box:before{content:"";background:#7c4dff;width:4px;position:absolute;top:0;bottom:0;left:0}.shard-info-label{color:var(--text-hi);margin-right:.4rem;font-size:.78rem;font-weight:700}.shard-info-value{color:var(--text-dim);font-size:.78rem}.shard-mermaid-wrap{flex-direction:column;align-items:center;width:100%;max-width:900px;margin:0 auto 2rem;display:flex}.shard-mermaid-wrap .mermaid{justify-content:center;width:100%;display:flex}.shard-mermaid-wrap .mermaid svg{min-width:640px;max-width:100%;height:auto}@media (max-width:768px){.shard-mermaid-wrap .mermaid svg{min-width:100%}}.shard-flow-controls{flex-wrap:wrap;justify-content:center;gap:.6rem;display:flex}.shard-tab-btn{background:var(--surface);color:var(--text-dim);border:1px solid var(--border2);cursor:pointer;font-family:var(--font-mono);border-radius:10px;padding:.45rem .9rem;font-size:.73rem;transition:all .2s}.shard-tab-btn:hover{color:#7c4dff;border-color:#7c4dff}.shard-tab-btn.active{color:#fff;background:#7c4dff;border-color:#7c4dff;font-weight:700;box-shadow:0 0 16px #7c4dff59}.shard-flow-diagram{border:1px solid var(--border);background:#0d1117;border-radius:20px;flex-direction:column;align-items:center;max-width:900px;margin:0 auto 2rem;padding:2rem 1.5rem;display:flex;position:relative}.shard-flow-status{font-size:.62rem;font-weight:700;font-family:var(--font-mono);background:var(--surface2);border:1px solid var(--border);border-radius:20px;padding:.28rem .75rem;position:absolute;top:1rem;right:1.5rem}.shard-flow-title{text-align:center;font-family:var(--font-display);color:var(--text-hi);letter-spacing:-.01em;margin:0 0 .3rem;font-size:1.15rem;font-weight:800}.shard-flow-subtitle{text-align:center;color:var(--text-dim);margin:0 0 1.5rem;font-size:.77rem}.shard-canvas{flex-direction:column;align-items:center;gap:.15rem;width:100%;margin-bottom:1.5rem;display:flex}.shard-client-node{background:#1a1f2b;border:2px solid #2d3748;border-radius:12px;flex-direction:column;align-items:center;gap:.3rem;min-width:120px;padding:.8rem 1.4rem;transition:all .4s;display:flex}.shard-client-node.active{background:#7c4dff14;border-color:#7c4dff;animation:.8s infinite shard-pulse;box-shadow:0 0 20px #7c4dff40}.shard-router-node{background:#1a1f2b;border:2px solid #2d3748;border-radius:12px;flex-direction:column;align-items:center;gap:.3rem;min-width:160px;padding:.8rem 1.6rem;transition:all .4s;display:flex;position:relative}.shard-router-node.active{background:#e040fb14;border-color:#e040fb;animation:.8s infinite shard-pulse-pink;box-shadow:0 0 20px #e040fb33}.shard-router-badge{font-size:.66rem;font-family:var(--font-mono);color:#e040fb;white-space:nowrap;background:#e040fb1f;border:1px solid #e040fb59;border-radius:6px;margin-top:.25rem;padding:.2rem .6rem;font-weight:700}.shard-node-icon{font-size:1.4rem;line-height:1}.shard-node-label{font-size:.7rem;font-family:var(--font-mono);color:var(--text-dim);text-transform:uppercase;letter-spacing:.05em;font-weight:700}.shard-arrow-v{color:var(--text-dim);margin:.2rem 0;font-size:1.2rem;line-height:1}.shard-nodes-row{flex-wrap:wrap;justify-content:center;gap:1.2rem;margin-top:.4rem;display:flex}.shard-db-node{background:#1a1f2b;border:2px solid #2d3748;border-radius:14px;flex-direction:column;align-items:center;gap:.35rem;min-width:100px;padding:1rem 1.2rem;transition:all .4s cubic-bezier(.4,0,.2,1);display:flex}.shard-db-node.idle{border-color:#2d3748}.shard-db-node.dimmed{opacity:.3;border-color:#1c2330}.shard-db-node.active{background:#7c4dff14;border-color:#7c4dff;animation:.8s infinite shard-pulse;transform:scale(1.06);box-shadow:0 0 18px #7c4dff40}.shard-db-node.target{border-color:var(--green);background:#3effa312;transform:scale(1.08);box-shadow:0 0 18px #3effa333}.shard-db-node.overflow{background:#ff525212;border-color:#ff5252;animation:.4s shard-shake;box-shadow:0 0 20px #ff525240}.shard-db-node.migrating{background:#ffab0012;border-color:#ffab00;animation:.7s infinite shard-blink}.shard-db-icon{font-size:1.5rem;line-height:1}.shard-db-label{font-family:var(--font-mono);color:var(--text-hi);font-size:.7rem;font-weight:700}.shard-db-range{color:var(--text-dim);font-size:.62rem;font-family:var(--font-mono)}.shard-flow-steps{flex-direction:column;gap:.4rem;width:100%;max-width:640px;display:flex}.shard-step{opacity:.22;align-items:flex-start;gap:.6rem;transition:opacity .3s;display:flex}.shard-step.visible{opacity:.4}.shard-step.current{opacity:1}.shard-step-num{border:2px solid var(--border2);width:24px;height:24px;color:var(--text-dim);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;margin-top:2px;font-size:.65rem;font-weight:700;transition:all .3s;display:flex}.shard-step.current .shard-step-num{color:#7c4dff;background:#7c4dff1a;border-color:#7c4dff}.shard-step-body{background:var(--dim);color:var(--text-dim);border-left:2px solid #0000;border-radius:8px;padding:.42rem .75rem;font-size:.77rem;line-height:1.5;transition:all .3s}.shard-step.current .shard-step-body{color:var(--text-hi);background:#7c4dff0d;border-left-color:#7c4dff}.shard-legend{flex-wrap:wrap;justify-content:center;gap:1.4rem;margin-top:1.5rem;display:flex}.shard-legend-item{color:var(--text-dim);align-items:center;gap:.45rem;font-size:.72rem;display:flex}.shard-legend-box{border:2px solid;border-radius:4px;width:14px;height:14px}.leg-target{border-color:var(--green);background:#3effa326}.leg-active{background:#7c4dff26;border-color:#7c4dff}.leg-overflow{background:#ff525226;border-color:#ff5252}.leg-migrating{background:#ffab0026;border-color:#ffab00}.shard-concepts-grid{grid-template-columns:repeat(3,1fr);gap:1rem;max-width:1100px;margin:0 auto 3rem;padding:0 2rem;display:grid}@media (max-width:1024px){.shard-concepts-grid{grid-template-columns:1fr}}.shard-concept-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:1.2rem;position:relative}.shard-concept-card:before{content:"";background:var(--card-color,#7c4dff);border-radius:12px 12px 0 0;height:3px;position:absolute;top:0;left:0;right:0}.shard-concept-title{font-family:var(--font-display);color:var(--text-hi);margin-bottom:.6rem;font-size:.95rem;font-weight:700}.shard-concept-desc{color:var(--text-dim);margin-bottom:.8rem;font-size:.77rem;line-height:1.6}.shard-concept-example{font-size:.71rem;font-family:var(--font-mono);color:var(--card-color,#7c4dff);background:var(--surface2);border-left:2px solid var(--card-color,#7c4dff);border-radius:6px;padding:.48rem .7rem}.shard-examples-grid{grid-template-columns:repeat(3,1fr);gap:1rem;max-width:1100px;margin:0 auto 3rem;padding:0 2rem;display:grid}@media (max-width:1024px){.shard-examples-grid{grid-template-columns:1fr}}.shard-example-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;flex-direction:column;gap:.6rem;padding:1.1rem;transition:all .3s;display:flex}.shard-example-card:hover{border-color:#7c4dff;box-shadow:0 0 14px #7c4dff1f}.shard-example-header{align-items:center;gap:.6rem;display:flex}.shard-example-icon{font-size:1.3rem}.shard-example-name{font-family:var(--font-display);color:var(--text-hi);flex:1;font-size:.95rem;font-weight:700}.shard-example-strategy{font-size:.65rem;font-family:var(--font-mono);letter-spacing:.03em;color:#7c4dff;background:#7c4dff0f;border:1px solid #7c4dff;border-radius:6px;padding:.14rem .5rem;font-weight:700}.shard-example-desc{color:var(--text-dim);font-size:.77rem;line-height:1.5}.shard-rating-dots{gap:4px;display:flex}.shard-dot{background:var(--surface2);border:1px solid var(--border);border-radius:50%;width:10px;height:10px;transition:all .2s}.shard-dot.on{background:#7c4dff;border-color:#7c4dff;box-shadow:0 0 6px #7c4dff73}@keyframes shard-pulse{0%,to{box-shadow:0 0 14px #7c4dff33}50%{box-shadow:0 0 28px #7c4dff73}}@keyframes shard-pulse-pink{0%,to{box-shadow:0 0 14px #e040fb26}50%{box-shadow:0 0 28px #e040fb59}}@keyframes shard-shake{0%,to{transform:translate(0)}20%{transform:translate(-4px)}40%{transform:translate(4px)}60%{transform:translate(-3px)}80%{transform:translate(3px)}}@keyframes shard-blink{0%,to{opacity:1}50%{opacity:.55}}[data-theme=light] .shard-mermaid-wrap{--bg:#080b10;--surface:#0e1219;--surface2:#151c27;--border:#1e2a3a;--border2:#253040;--text:#c9d3e0;--text-dim:#5a6a7e;--text-hi:#eef2f8;--cyan:#00e5ff;--purple:#b985f4;--green:#3effa3;--dim:#1e1e2e;background:#12161f;border:1px solid #1e2a3a;border-radius:16px;padding:2rem;box-shadow:0 4px 6px #00000026}