@keyframes fade-in-slide-down{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes fade-in-slide-up{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes gradient-shimmer{0%{background-position:-1000px 0}to{background-position:1000px 0}}.group-guide[data-astro-cid-brc75lmr]{max-width:1000px;margin:0 auto;padding:2rem 2rem 3rem}.guide-header[data-astro-cid-brc75lmr]{margin-bottom:3rem;padding:3.5rem 2.5rem;background:color-mix(in srgb,var(--surface) 85%,transparent);backdrop-filter:blur(12px);border:1px solid color-mix(in srgb,var(--border) 60%,transparent);border-radius:var(--radius-2xl);box-shadow:0 8px 32px #00000014;text-align:center;animation:fade-in-slide-down .6s ease-out}.header-content[data-astro-cid-brc75lmr]{max-width:700px;margin:0 auto}.header-title[data-astro-cid-brc75lmr]{margin:0 0 1rem;font-size:2.8rem;font-weight:900;background:linear-gradient(135deg,#667eea,#764ba2,#6c63ff);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;background-size:200% 200%;animation:gradient-shimmer 3s ease-in-out infinite}.header-subtitle[data-astro-cid-brc75lmr]{margin:0 0 1.5rem;font-size:1.1rem;color:var(--text-muted);line-height:1.6;font-weight:500}.header-badges[data-astro-cid-brc75lmr]{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.badge[data-astro-cid-brc75lmr]{display:inline-block;padding:.5rem 1.25rem;border-radius:20px;font-size:.85rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;animation:fade-in-slide-up .6s ease-out .1s backwards}.badge[data-astro-cid-brc75lmr].trends{background:color-mix(in srgb,#667eea 10%,transparent);color:#667eea;border:1px solid color-mix(in srgb,#667eea 25%,transparent)}.badge[data-astro-cid-brc75lmr].zeff{background:color-mix(in srgb,#764ba2 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ease;cursor:pointer;white-space:nowrap}.nav-link[data-astro-cid-brc75lmr]:hover{background:color-mix(in srgb,#667eea 10%,transparent);border-color:#667eea;transform:translateY(-2px)}.intro-section[data-astro-cid-brc75lmr]{background:color-mix(in srgb,#667eea 8%,transparent);border-left:4px solid #667eea;padding:1.75rem;border-radius:var(--radius-lg);margin-bottom:2.5rem;animation:fade-in-slide-up .6s ease-out .2s backwards}.intro-text[data-astro-cid-brc75lmr]{margin:0;font-size:1.05rem;line-height:1.8;color:var(--text);font-weight:500}.content-section[data-astro-cid-brc75lmr]{margin-bottom:2.5rem;padding:2rem;background:color-mix(in srgb,var(--surface) 85%,transparent);backdrop-filter:blur(12px);border:1px solid color-mix(in srgb,var(--border) 60%,transparent);border-radius:var(--radius-xl);box-shadow:0 8px 32px #00000014;animation:fade-in-slide-up .6s ease-out}.content-section[data-astro-cid-brc75lmr] h2[data-astro-cid-brc75lmr]{margin-top:0;margin-bottom:1.75rem;color:var(--text);font-size:1.65rem;font-weight:800;padding-bottom:1rem;border-bottom:2px solid color-mix(in srgb,#667eea 30%,transparent)}.info-box[data-astro-cid-brc75lmr]{background:color-mix(in srgb,#667eea 5%,transparent);border-left:4px solid #667eea;padding:1.5rem;border-radius:var(--radius-lg);margin-bottom:1.5rem}.info-box[data-astro-cid-brc75lmr] h3[data-astro-cid-brc75lmr]{margin-top:0;margin-bottom:.5rem;color:#667eea;font-size:1.1rem}.info-box[data-astro-cid-brc75lmr] p[data-astro-cid-brc75lmr]{margin:0;line-height:1.6;color:var(--text)}.table-wrapper[data-astro-cid-brc75lmr]{overflow-x:auto;border-radius:var(--radius-lg);box-shadow:0 4px 12px #0000000d;margin-bottom:1.5rem}.trends-table[data-astro-cid-brc75lmr],.oxidation-table[data-astro-cid-brc75lmr]{width:100%;border-collapse:collapse;background:var(--bg)}.trends-table[data-astro-cid-brc75lmr] thead[data-astro-cid-brc75lmr],.oxidation-table[data-astro-cid-brc75lmr] thead[data-astro-cid-brc75lmr]{background:linear-gradient(135deg,#667eea,#764ba2)}.trends-table[data-astro-cid-brc75lmr] th[data-astro-cid-brc75lmr],.oxidation-table[data-astro-cid-brc75lmr] th[data-astro-cid-brc75lmr]{color:#fff;padding:1rem .75rem;text-align:left;font-weight:700;text-transform:uppercase;letter-spacing:.05em;font-size:.9rem}.trends-table[data-astro-cid-brc75lmr] td[data-astro-cid-brc75lmr],.oxidation-table[data-astro-cid-brc75lmr] td[data-astro-cid-brc75lmr]{padding:1rem .75rem;border-bottom:1px solid color-mix(in srgb,var(--border) 40%,transparent)}.trends-table[data-astro-cid-brc75lmr] tbody[data-astro-cid-brc75lmr] tr[data-astro-cid-brc75lmr]:hover,.oxidation-table[data-astro-cid-brc75lmr] tbody[data-astro-cid-brc75lmr] tr[data-astro-cid-brc75lmr]:hover{background:color-mix(in srgb,#667eea 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60%,transparent);padding:1.75rem;border-radius:var(--radius-lg);margin-bottom:1.5rem;border:1px solid color-mix(in srgb,var(--border) 40%,transparent);transition:all .3s ease}.property-card[data-astro-cid-brc75lmr]:hover{border-color:#667eea;box-shadow:0 4px 16px color-mix(in srgb,#667eea 15%,transparent)}.property-card[data-astro-cid-brc75lmr] h3[data-astro-cid-brc75lmr]{margin-top:0;margin-bottom:1rem;color:#667eea;font-size:1.1rem}.rules-list[data-astro-cid-brc75lmr]{display:grid;gap:1rem}.rule-item[data-astro-cid-brc75lmr]{display:flex;gap:1rem;align-items:flex-start}.rule-num[data-astro-cid-brc75lmr]{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;background:#667eea;color:#fff;border-radius:50%;font-weight:700;flex-shrink:0}.rule-text[data-astro-cid-brc75lmr]{line-height:1.6;color:var(--text)}.anomaly-grid[data-astro-cid-brc75lmr],.block-grid[data-astro-cid-brc75lmr],.advanced-grid[data-astro-cid-brc75lmr],.strategy-boxes[data-astro-cid-brc75lmr],.problems-grid[data-astro-cid-brc75lmr]{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;margin-bottom:1.5rem}.anomaly-card[data-astro-cid-brc75lmr],.block-card[data-astro-cid-brc75lmr],.advanced-item[data-astro-cid-brc75lmr],.problem-card[data-astro-cid-brc75lmr]{padding:1.5rem;background:color-mix(in srgb,var(--bg) 60%,transparent);border:1px solid color-mix(in srgb,var(--border) 40%,transparent);border-radius:var(--radius-lg);border-top:3px solid #667eea;transition:all .3s ease}.anomaly-card[data-astro-cid-brc75lmr]:hover,.block-card[data-astro-cid-brc75lmr]:hover,.advanced-item[data-astro-cid-brc75lmr]:hover,.problem-card[data-astro-cid-brc75lmr]:hover{border-top-color:#764ba2;box-shadow:0 4px 16px #00000014}.anomaly-card[data-astro-cid-brc75lmr] h4[data-astro-cid-brc75lmr],.block-card[data-astro-cid-brc75lmr] h4[data-astro-cid-brc75lmr],.advanced-item[data-astro-cid-brc75lmr] h4[data-astro-cid-brc75lmr],.problem-card[data-astro-cid-brc75lmr] h4[data-astro-cid-brc75lmr]{margin-top:0;margin-bottom:1rem;color:#667eea;font-size:1.05rem}.anomaly-card[data-astro-cid-brc75lmr] p[data-astro-cid-brc75lmr],.block-card[data-astro-cid-brc75lmr] p[data-astro-cid-brc75lmr],.advanced-item[data-astro-cid-brc75lmr] p[data-astro-cid-brc75lmr],.problem-card[data-astro-cid-brc75lmr] p[data-astro-cid-brc75lmr]{margin:.5rem 0;line-height:1.6;color:var(--text);font-size:.95rem}.problem-card[data-astro-cid-brc75lmr].easy{border-top-color:#10b981}.problem-card[data-astro-cid-brc75lmr].medium{border-top-color:#f59e0b}.problem-card[data-astro-cid-brc75lmr].hard{border-top-color:#ef4444}.quick-ref[data-astro-cid-brc75lmr]{background:color-mix(in srgb,#667eea 8%,transparent);border-left:4px solid #667eea;padding:1.75rem;border-radius:var(--radius-lg);margin-top:1.5rem}.quick-ref[data-astro-cid-brc75lmr] h3[data-astro-cid-brc75lmr]{margin-top:0;margin-bottom:1rem;color:#667eea}.quick-ref[data-astro-cid-brc75lmr] ul[data-astro-cid-brc75lmr]{margin:0;padding-left:1.5rem}.quick-ref[data-astro-cid-brc75lmr] li[data-astro-cid-brc75lmr]{margin:.75rem 0;line-height:1.6;color:var(--text)}.cta-links-section[data-astro-cid-brc75lmr]{margin-top:3rem;padding:2.5rem;background:color-mix(in srgb,#667eea 8%,transparent);border-radius:var(--radius-xl);text-align:center;animation:fade-in-slide-up .6s ease-out .3s backwards}.cta-links-section[data-astro-cid-brc75lmr] h2[data-astro-cid-brc75lmr]{margin-top:0;margin-bottom:2rem;color:var(--text);font-size:1.65rem;font-weight:800;padding-bottom:1rem;border-bottom:2px solid color-mix(in srgb,#667eea 30%,transparent)}.links-grid[data-astro-cid-brc75lmr]{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem}.resource-link[data-astro-cid-brc75lmr]{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:1.5rem;background:color-mix(in srgb,var(--surface) 85%,transparent);border:1px solid color-mix(in srgb,var(--border) 60%,transparent);border-radius:var(--radius-lg);color:#667eea;text-decoration:none;font-weight:700;font-size:.95rem;transition:all .3s ease}.resource-link[data-astro-cid-brc75lmr]:hover{background:color-mix(in srgb,#667eea 10%,transparent);border-color:#667eea;transform:translateY(-3px);box-shadow:0 8px 24px color-mix(in srgb,#667eea 20%,transparent)}.link-icon[data-astro-cid-brc75lmr]{font-size:2rem;margin-bottom:.5rem}.link-text[data-astro-cid-brc75lmr]{text-align:center}@media(prefers-reduced-motion:reduce){[data-astro-cid-brc75lmr]{animation:none!important;transition:none!important}}@media(max-width:768px){.header-title[data-astro-cid-brc75lmr]{font-size:1.8rem}.group-guide[data-astro-cid-brc75lmr]{padding:1.5rem 1rem}.guide-header[data-astro-cid-brc75lmr]{padding:2rem 1.5rem}.anomaly-grid[data-astro-cid-brc75lmr],.block-grid[data-astro-cid-brc75lmr],.advanced-grid[data-astro-cid-brc75lmr],.strategy-boxes[data-astro-cid-brc75lmr],.problems-grid[data-astro-cid-brc75lmr]{grid-template-columns:1fr}.trends-table[data-astro-cid-brc75lmr],.oxidation-table[data-astro-cid-brc75lmr]{font-size:.85rem}.trends-table[data-astro-cid-brc75lmr] th[data-astro-cid-brc75lmr],.oxidation-table[data-astro-cid-brc75lmr] th[data-astro-cid-brc75lmr],.trends-table[data-astro-cid-brc75lmr] td[data-astro-cid-brc75lmr],.oxidation-table[data-astro-cid-brc75lmr] td[data-astro-cid-brc75lmr]{padding:.75rem .5rem}.links-grid[data-astro-cid-brc75lmr]{grid-template-columns:repeat(2,1fr)}.related-resources-section[data-astro-cid-brc75lmr]{padding:1.75rem 1rem;margin-bottom:1.5rem}.resources-header[data-astro-cid-brc75lmr] h2[data-astro-cid-brc75lmr]{font-size:1.35rem}.resources-header[data-astro-cid-brc75lmr],.resources-category[data-astro-cid-brc75lmr]{margin-bottom:2rem}.category-title[data-astro-cid-brc75lmr]{font-size:1.05rem;margin-bottom:1rem}.resources-grid[data-astro-cid-brc75lmr]{grid-template-columns:1fr;gap:.75rem}.resource-card[data-astro-cid-brc75lmr]{padding:1.25rem;gap:.5rem}.card-icon[data-astro-cid-brc75lmr]{font-size:1.5rem}.card-title[data-astro-cid-brc75lmr]{font-size:.9rem}.card-desc[data-astro-cid-brc75lmr]{font-size:.8rem}.resources-footer[data-astro-cid-brc75lmr]{padding-top:1.5rem;margin-top:1.5rem}.resources-footer[data-astro-cid-brc75lmr] p[data-astro-cid-brc75lmr]{font-size:.9rem}}.related-resources-section[data-astro-cid-brc75lmr]{padding:3rem 2rem;background:linear-gradient(135deg,color-mix(in srgb,var(--primary) 8%,transparent),color-mix(in srgb,var(--secondary) 8%,transparent));border:1.5px solid color-mix(in srgb,var(--primary) 20%,transparent);border-radius:var(--radius-2xl);margin-bottom:2rem}.resources-header[data-astro-cid-brc75lmr]{text-align:center;margin-bottom:3rem}.resources-header[data-astro-cid-brc75lmr] h2[data-astro-cid-brc75lmr]{margin:0 0 .75rem;color:var(--text);font-size:2rem;font-weight:900;background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.resources-subtitle[data-astro-cid-brc75lmr]{margin:0;color:var(--text-muted);font-size:1.05rem;font-weight:500}.resources-category[data-astro-cid-brc75lmr]{margin-bottom:3rem}.category-title[data-astro-cid-brc75lmr]{margin:0 0 1.5rem;color:var(--text);font-size:1.35rem;font-weight:800;padding-bottom:.75rem;border-bottom:2px solid color-mix(in srgb,var(--primary) 20%,transparent)}.resources-grid[data-astro-cid-brc75lmr]{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.25rem;margin-bottom:1rem}.resources-grid[data-astro-cid-brc75lmr].featured{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.resource-card[data-astro-cid-brc75lmr]{display:flex;flex-direction:column;align-items:flex-start;gap:.75rem;padding:1.5rem;background:var(--bg);border:1.5px solid color-mix(in srgb,var(--border) 50%,transparent);border-radius:var(--radius-lg);text-decoration:none;transition:all .3s ease;position:relative;overflow:hidden}.resource-card[data-astro-cid-brc75lmr]:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,color-mix(in srgb,var(--primary) 10%,transparent),transparent);transition:left .5s ease}.resource-card[data-astro-cid-brc75lmr]:hover:before{left:100%}.resource-card[data-astro-cid-brc75lmr]:hover{border-color:var(--primary);box-shadow:0 8px 24px color-mix(in srgb,var(--primary) 15%,transparent);transform:translateY(-6px)}.resource-card[data-astro-cid-brc75lmr].active-guide{border-color:var(--secondary);background:color-mix(in srgb,var(--secondary) 8%,transparent)}.resource-card[data-astro-cid-brc75lmr].active-guide .card-title[data-astro-cid-brc75lmr]{color:var(--secondary)}.resource-card[data-astro-cid-brc75lmr].featured-card{background:color-mix(in srgb,var(--primary) 5%,transparent);border-color:color-mix(in srgb,var(--primary) 30%,transparent)}.resource-card[data-astro-cid-brc75lmr].featured-card:hover{background:color-mix(in srgb,var(--primary) 10%,transparent)}.card-icon[data-astro-cid-brc75lmr]{font-size:1.75rem;line-height:1}.card-title[data-astro-cid-brc75lmr]{font-size:.95rem;font-weight:800;color:var(--text);transition:all .3s ease}.resource-card[data-astro-cid-brc75lmr]:hover .card-title[data-astro-cid-brc75lmr]{color:var(--primary)}.card-desc[data-astro-cid-brc75lmr]{font-size:.85rem;color:var(--text-muted);line-height:1.4}.resources-footer[data-astro-cid-brc75lmr]{text-align:center;padding-top:2rem;border-top:1px solid color-mix(in srgb,var(--border) 40%,transparent);margin-top:2rem}.resources-footer[data-astro-cid-brc75lmr] p[data-astro-cid-brc75lmr]{margin:0;color:var(--text-muted);font-size:.95rem;font-weight:500}@media(max-width:768px){.related-resources-section[data-astro-cid-brc75lmr]{padding:2rem 1.5rem}.resources-header[data-astro-cid-brc75lmr] h2[data-astro-cid-brc75lmr]{font-size:1.5rem}.resources-grid[data-astro-cid-brc75lmr]{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem}.resources-grid[data-astro-cid-brc75lmr].featured{grid-template-columns:1fr}.category-title[data-astro-cid-brc75lmr]{font-size:1.2rem}}