:root{--nsg-primary:#8b5cf6;--nsg-primary-hover:#7c3aed;--nsg-primary-light:#8b5cf61a;--nsg-text:#1f2937;--nsg-text-muted:#64748b;--nsg-text-light:#94a3b8;--nsg-bg:#fff;--nsg-bg-secondary:#f8fafc;--nsg-border:#e2e8f0;--nsg-success:#10b981;--nsg-error:#ef4444;--nsg-radius:var(--main-radius,.5rem);--nsg-radius-lg:var(--main-radius-lg,.75rem);--nsg-shadow:0 1px 3px #0000001a;--nsg-shadow-md:0 4px 6px -1px #0000001a}._nsg-container{max-width:700px;margin:0 auto}@media (max-width:768px){._nsg-container{padding-left:1rem;padding-right:1rem}}._nsg-tabs{background:var(--nsg-bg);border-radius:var(--nsg-radius-lg);box-shadow:var(--nsg-shadow);border-style:solid;border-width:1px;border-color:var(--nsg-border);-webkit-overflow-scrolling:touch;gap:.25rem;margin-bottom:1.25rem;padding:.375rem;display:flex;overflow-x:auto}._nsg-tab{color:var(--nsg-text-muted);border-radius:var(--nsg-radius);cursor:pointer;white-space:nowrap;background:0 0;border:none;flex:1;justify-content:center;align-items:center;gap:.375rem;padding:.625rem 1rem;font-size:.875rem;font-weight:500;transition:background-color .15s,color .15s;display:flex}._nsg-tab:hover{background:var(--nsg-bg-secondary);color:var(--nsg-text)}._nsg-tab._nsg-tab-active{background:var(--nsg-primary);color:#fff}._nsg-tab svg{flex-shrink:0}._nsg-tab-content{min-height:300px}._nsg-panel{display:none}._nsg-panel._nsg-panel-active{display:block}@media (max-width:640px){._nsg-tabs{padding:.25rem}._nsg-tab{padding:.5rem .75rem;font-size:.8125rem}._nsg-tab span{display:none}._nsg-tab svg{width:18px;height:18px}}._nsg-card{background:var(--nsg-bg);border-radius:var(--nsg-radius-lg);box-shadow:var(--nsg-shadow);border-style:solid;border-width:1px;border-color:var(--nsg-border);overflow:hidden}._nsg-card-header{border-bottom-style:solid;border-bottom-width:1px;border-bottom-color:var(--nsg-border);background:var(--nsg-bg-secondary);justify-content:space-between;align-items:center;gap:1rem;padding:1rem 1.25rem;display:flex}._nsg-card-title{color:var(--nsg-text);margin:0;font-size:1rem;font-weight:600}._nsg-formula-badge{background:var(--nsg-primary-light);color:var(--nsg-primary);font-size:.8125rem;font-weight:500;font-family:var(--main-font-mono,monospace);border-radius:var(--nsg-radius);padding:.25rem .75rem;display:inline-flex}._nsg-card-body{padding:1.25rem}@media (max-width:640px){._nsg-card-header{flex-direction:column;align-items:flex-start;gap:.5rem;padding:.875rem 1rem}._nsg-card-body{padding:1rem}}._nsg-input-grid{grid-template-columns:repeat(3,1fr);gap:1rem;display:grid}._nsg-input-grid-2{grid-template-columns:repeat(2,1fr)}._nsg-input-group{flex-direction:column;gap:.375rem;display:flex}._nsg-input-full{grid-column:1/-1;margin-top:.5rem}._nsg-label{color:var(--nsg-text);font-size:.8125rem;font-weight:500}._nsg-label-hint{color:var(--nsg-text-muted);font-weight:400}._nsg-input,._nsg-select{width:100%;color:var(--nsg-text);background:var(--nsg-bg);border-style:solid;border-width:1.5px;border-color:var(--nsg-border);border-radius:var(--nsg-radius);padding:.625rem .875rem;font-size:.9375rem;transition:border-color .15s,box-shadow .15s}._nsg-input:focus,._nsg-select:focus{border-color:var(--nsg-primary);box-shadow:0 0 0 3px var(--nsg-primary-light);outline:none}._nsg-input::placeholder{color:var(--nsg-text-light)}._nsg-input-mono{font-family:var(--main-font-mono,monospace)}._nsg-select{cursor:pointer;-webkit-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M2.5 4.5L6 8l3.5-3.5'/%3E%3C/svg%3E");background-position:right .75rem center;background-repeat:no-repeat;padding-right:2.25rem}._nsg-formula-help{color:var(--nsg-text-muted);flex-wrap:wrap;align-items:center;gap:.375rem;margin-top:.75rem;font-size:.75rem;display:flex}._nsg-help-title{margin-left:.5rem;font-weight:500}._nsg-help-title:first-child{margin-left:0}._nsg-formula-help code{background:var(--nsg-bg-secondary);font-family:var(--main-font-mono,monospace);border-radius:.25rem;padding:.125rem .375rem;font-size:.6875rem}@media (max-width:640px){._nsg-input-grid,._nsg-input-grid-2{grid-template-columns:1fr}}._nsg-results{margin-top:1.25rem}._nsg-result-card{background:var(--nsg-bg);border-radius:var(--nsg-radius-lg);box-shadow:var(--nsg-shadow);border-style:solid;border-width:1px;border-color:var(--nsg-border);overflow:hidden}._nsg-result-header{background:var(--nsg-bg-secondary);border-bottom-style:solid;border-bottom-width:1px;border-bottom-color:var(--nsg-border);justify-content:space-between;align-items:center;padding:.75rem 1rem;display:flex}._nsg-result-label{color:var(--nsg-text);font-size:.8125rem;font-weight:500}._nsg-copy-btn{width:32px;height:32px;color:var(--nsg-text-muted);border-radius:var(--nsg-radius);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;transition:background-color .15s,color .15s;display:flex}._nsg-copy-btn:hover{background:var(--nsg-border);color:var(--nsg-text)}._nsg-sequence-display{font-family:var(--main-font-mono,monospace);color:var(--nsg-text);word-break:break-all;background:var(--nsg-bg);min-height:60px;max-height:150px;padding:1rem;font-size:1rem;line-height:1.75;overflow-y:auto}._nsg-stats-grid{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1rem;margin-top:1rem;display:grid}._nsg-stat-item{background:var(--nsg-bg);border-radius:var(--nsg-radius);text-align:center;border-style:solid;border-width:1px;border-color:var(--nsg-border);box-shadow:var(--nsg-shadow);padding:1rem}._nsg-stat-label{color:var(--nsg-text-muted);margin-bottom:.375rem;font-size:.75rem;font-weight:500;display:block}._nsg-stat-value{color:var(--nsg-primary);font-size:1.25rem;font-weight:600;font-family:var(--main-font-mono,monospace);word-break:break-all;display:block}@media (max-width:640px){._nsg-stats-grid{grid-template-columns:repeat(2,1fr)}._nsg-stat-item{padding:.75rem}._nsg-stat-value{font-size:1.125rem}}