.explorer-stage{margin:2.5rem 0;padding:2rem;background:hsl(var(--bg-surface));border:1px solid hsl(var(--border-subtle));border-radius:var(--radius-xl);box-shadow:var(--shadow-sm)}.stage-header{margin-bottom:2rem}.stage-badge{display:inline-flex;align-items:center;gap:.4rem;padding:.35rem .75rem;background:hsl(var(--primary-glow) / .1);border:1px solid hsl(var(--primary-glow) / .2);border-radius:var(--radius-full);font-size:.8rem;font-weight:700;color:hsl(var(--primary));margin-bottom:.75rem}.stage-title{font-size:var(--text-h2);color:hsl(var(--text-primary));margin-bottom:.5rem}.stage-description{font-size:var(--text-body);color:hsl(var(--text-secondary));max-width:50rem}.filter-panel{background:hsl(var(--bg-card));border:1px solid hsl(var(--border-subtle));border-radius:var(--radius-lg);padding:1.25rem;margin-bottom:2rem}.filter-row{display:grid;grid-template-columns:minmax(0,1fr);gap:1rem;margin-bottom:1rem;min-width:0;max-width:100%}@media(min-width:768px){.filter-row{grid-template-columns:1fr 1fr 1.5fr}}.filter-group{display:flex;flex-direction:column;gap:.4rem;min-width:0;max-width:100%}.filter-label{font-size:.8rem;font-weight:600;color:hsl(var(--text-secondary))}.pill-group{display:flex;flex-wrap:wrap;gap:.35rem;min-width:0;max-width:100%}@media(max-width:768px){.pill-group{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:.35rem;scrollbar-width:none}.pill-group::-webkit-scrollbar{display:none}.stage-pill,.diag-pill{flex-shrink:0;white-space:nowrap}}.stage-pill,.diag-pill{padding:.4rem .75rem;font-size:.8rem;font-weight:600;border-radius:var(--radius-full);border:1px solid hsl(var(--border-subtle));background:hsl(var(--bg-surface));color:hsl(var(--text-secondary));cursor:pointer;transition:all var(--duration-fast) ease}.stage-pill:hover,.diag-pill:hover{border-color:hsl(var(--primary));color:hsl(var(--text-primary))}.stage-pill.active,.diag-pill.active{background:hsl(var(--primary));color:#fff;border-color:hsl(var(--primary))}.filter-input{height:38px;padding:.5rem .85rem;background:hsl(var(--bg-surface));border:1px solid hsl(var(--border-strong));border-radius:var(--radius-md);font-size:var(--text-sm);color:hsl(var(--text-primary));outline:none;transition:border-color var(--duration-fast) ease}.filter-input:focus{border-color:hsl(var(--border-active))}.filter-status-bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.75rem;font-size:.85rem;color:hsl(var(--text-secondary));padding-top:.85rem;border-top:1px solid hsl(var(--border-subtle))}.status-counter strong{color:hsl(var(--primary))}.worksheet-grid{display:grid;grid-template-columns:1fr;gap:1.5rem}@media(min-width:640px){.worksheet-grid{grid-template-columns:repeat(2,1fr)}}@media(min-width:1024px){.worksheet-grid{grid-template-columns:repeat(3,1fr)}}.page-wrapper{padding-top:2.5rem;padding-bottom:4rem}.hero-header{margin-bottom:2.5rem}.hero-meta-badge{display:inline-flex;align-items:center;gap:.5rem;padding:.35rem .85rem;background:hsl(var(--bg-card));border:1px solid hsl(var(--border-strong));border-radius:var(--radius-full);font-size:.75rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:hsl(var(--text-secondary));margin-bottom:1rem}.hero-h1{font-size:var(--text-hero);color:hsl(var(--text-primary));margin-bottom:1.25rem;line-height:1.2;max-width:60rem}.hero-lead{font-size:var(--text-body-lg);color:hsl(var(--text-secondary));line-height:1.7;max-width:56.25rem;margin-bottom:2rem}.hero-lead strong{color:hsl(var(--text-primary));font-weight:700}.educational-prose{margin-top:4rem;max-width:56.25rem}.prose-section{margin-bottom:3rem}.prose-section h2{font-size:var(--text-h2);margin-bottom:1rem;color:hsl(var(--text-primary))}.prose-section p{font-size:var(--text-body);color:hsl(var(--text-secondary));line-height:1.7;margin-bottom:1rem}.feature-bento{margin:2rem 0}.col-span-4{grid-column:span 12}@media(min-width:768px){.col-span-4{grid-column:span 4}}.bento-icon{font-size:2rem;margin-bottom:.75rem}.bento-title{font-size:1.1rem;margin-bottom:.5rem;color:hsl(var(--text-primary))}.bento-desc{font-size:var(--text-sm);color:hsl(var(--text-secondary));line-height:1.5;margin-bottom:1rem}.bento-link{display:inline-flex;align-items:center;min-height:44px;font-size:var(--text-sm);font-weight:600;color:hsl(var(--primary));text-decoration:none}.bento-link:hover{text-decoration:underline}.pedagogical-list{list-style:none;display:flex;flex-direction:column;gap:.85rem;margin-top:1rem}.pedagogical-list li{padding-left:1.5rem;position:relative;font-size:var(--text-body);color:hsl(var(--text-secondary));line-height:1.65}.pedagogical-list li:before{content:"✓";position:absolute;left:0;color:hsl(var(--accent-sage));font-weight:700}.silo-conduit-box{margin-top:2rem;padding:1.75rem 2rem;background:linear-gradient(135deg,hsl(var(--bg-card)),hsl(var(--bg-canvas)));border:1.5px solid hsl(var(--border-strong));border-radius:var(--radius-lg);box-shadow:0 4px 12px hsl(var(--shadow-color) / .04)}.silo-badge{display:inline-block;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:hsl(var(--primary));background:hsl(var(--primary) / .1);padding:.25rem .65rem;border-radius:var(--radius-full);margin-bottom:.75rem}.silo-title{font-size:1.25rem;font-weight:700;color:hsl(var(--text-primary));margin-bottom:.5rem}.silo-desc{font-size:var(--text-body);color:hsl(var(--text-secondary));line-height:1.6;margin-bottom:1rem}.silo-link{display:inline-flex;align-items:center;font-weight:700;font-size:.95rem;color:hsl(var(--primary));text-decoration:none;transition:transform .15s ease,color .15s ease}.silo-link:hover{color:hsl(var(--primary-hover));text-decoration:underline;transform:translate(3px)}