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h4{margin-top:0;color:#667eea;font-size:16px;font-weight:700}.hexa2026-visualization-container{display:flex;justify-content:center;align-items:center;background:#f9f9f9;border-radius:12px;padding:20px;margin-top:15px}#hex-canvas{max-width:100%;height:auto}.hexa2026-legend{margin-top:12px;display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:8px;width:100%}.hexa2026-legend .legend-item{display:flex;align-items:center;gap:8px;font-size:12px;justify-content:center}.hexa2026-legend .legend-color{width:14px;height:14px;border-radius:3px;display:inline-block;border:1px solid rgb(0 0 0 / .1)}.hexa2026-legend-note{font-size:12px;color:#666;margin-top:6px}.hexa2026-steps{margin-top:10px;font-size:13px;background:#e3f2fd;padding:16px;border-radius:12px;color:#0d47a1;line-height:1.6;border-left:4px solid #667eea}.hexa2026-steps b{color:#667eea}.hexa2026-steps p{margin:8px 0}.hexa2026-formula-section{background:linear-gradient(135deg,#f5f7fa 0%,#c3cfe2 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li{margin-bottom:4px;color:#333}.hexa2026-hidden{display:none!important}@media(max-width:520px){.hexa2026-container{padding:15px!important}.hexa2026-grid{grid-template-columns:1fr 1fr}.hexa2026-input-row{flex-wrap:wrap}.hexa2026-btn-group{flex-direction:column}.hexa2026-edu-content{grid-template-columns:1fr}.hexa2026-card-header h2{font-size:22px}}