@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-n4wqsosf]{max-width:1000px;margin:0 auto;padding:2rem 2rem 3rem}.guide-header[data-astro-cid-n4wqsosf]{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-n4wqsosf]{max-width:700px;margin:0 auto}.header-title[data-astro-cid-n4wqsosf]{margin:0 0 1rem;font-size:2.8rem;font-weight:900;background:linear-gradient(135deg,#ff6b6b,#ffd93d,#ff6b6b);-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-n4wqsosf]{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-n4wqsosf]{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.badge[data-astro-cid-n4wqsosf]{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-n4wqsosf].alkali{background:color-mix(in srgb,#ff6b6b 10%,transparent);color:#ff6b6b;border:1px solid color-mix(in srgb,#ff6b6b 25%,transparent)}.badge[data-astro-cid-n4wqsosf].reactive{background:color-mix(in srgb,#ffd93d 10%,transparent);color:#ffd93d;border:1px solid color-mix(in srgb,#ffd93d 25%,transparent)}.badge[data-astro-cid-n4wqsosf].valence{background:color-mix(in srgb,var(--primary) 10%,transparent);color:var(--primary);border:1px solid color-mix(in srgb,var(--primary) 25%,transparent)}.quick-nav[data-astro-cid-n4wqsosf]{display:flex;gap:1rem;margin-bottom:2.5rem;overflow-x:auto;padding:0 0 1rem;justify-content:center;flex-wrap:wrap}.nav-link[data-astro-cid-n4wqsosf]{display:inline-block;padding:.75rem 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:var(--primary);text-decoration:none;font-weight:700;font-size:.95rem;transition:all .3s ease;cursor:pointer;white-space:nowrap}.nav-link[data-astro-cid-n4wqsosf]:hover{background:color-mix(in srgb,var(--primary) 10%,transparent);border-color:var(--primary);transform:translateY(-2px)}.intro-section[data-astro-cid-n4wqsosf]{background:color-mix(in srgb,#ff6b6b 8%,transparent);border-left:4px solid #ff6b6b;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-n4wqsosf]{margin:0;font-size:1.05rem;line-height:1.8;color:var(--text);font-weight:500}.content-section[data-astro-cid-n4wqsosf]{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-n4wqsosf] h2[data-astro-cid-n4wqsosf]{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,#ff6b6b 30%,transparent)}.table-wrapper[data-astro-cid-n4wqsosf]{overflow-x:auto;border-radius:var(--radius-lg);box-shadow:0 4px 12px #0000000d}.elements-table[data-astro-cid-n4wqsosf]{width:100%;border-collapse:collapse;background:var(--bg)}.elements-table[data-astro-cid-n4wqsosf] thead[data-astro-cid-n4wqsosf]{background:linear-gradient(135deg,#ff6b6b,#ffd93d)}.elements-table[data-astro-cid-n4wqsosf] th[data-astro-cid-n4wqsosf]{color:#fff;padding:1rem .75rem;text-align:left;font-weight:700;text-transform:uppercase;letter-spacing:.05em;font-size:.9rem}.elements-table[data-astro-cid-n4wqsosf] td[data-astro-cid-n4wqsosf]{padding:1rem .75rem;border-bottom:1px solid color-mix(in srgb,var(--border) 40%,transparent)}.elements-table[data-astro-cid-n4wqsosf] tbody[data-astro-cid-n4wqsosf] tr[data-astro-cid-n4wqsosf]{transition:all .3s ease}.elements-table[data-astro-cid-n4wqsosf] tbody[data-astro-cid-n4wqsosf] tr[data-astro-cid-n4wqsosf]:hover{background:color-mix(in srgb,#ff6b6b 5%,transparent)}.element-name[data-astro-cid-n4wqsosf]{font-weight:700;color:var(--primary)}.symbol[data-astro-cid-n4wqsosf]{font-weight:800;font-size:1.1rem;color:#ff6b6b}.config[data-astro-cid-n4wqsosf]{font-family:Courier New,monospace;background:color-mix(in srgb,var(--bg) 60%,transparent);padding:.25rem .5rem;border-radius:4px;font-size:.9rem}.reactivity-badge[data-astro-cid-n4wqsosf]{display:inline-block;padding:.4rem .75rem;border-radius:12px;font-weight:700;font-size:.8rem;text-transform:uppercase;letter-spacing:.04em}.reactivity-badge[data-astro-cid-n4wqsosf].low{background:color-mix(in srgb,#4d96ff 10%,transparent);color:#4d96ff}.reactivity-badge[data-astro-cid-n4wqsosf].high{background:color-mix(in srgb,#ffd93d 10%,transparent);color:#ffd93d}.reactivity-badge[data-astro-cid-n4wqsosf].very-high{background:color-mix(in srgb,#ff6b6b 10%,transparent);color:#ff6b6b}.reactivity-badge[data-astro-cid-n4wqsosf].extreme{background:color-mix(in srgb,#a455d4 10%,transparent);color:#a455d4}.reactivity-badge[data-astro-cid-n4wqsosf].most{background:linear-gradient(135deg,#ff6b6b,#a455d4);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;border:1px solid #ff6b6b;padding:.35rem .7rem}.property-card[data-astro-cid-n4wqsosf]{background:color-mix(in srgb,var(--bg) 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-n4wqsosf]:hover{border-color:#ff6b6b;box-shadow:0 4px 16px color-mix(in srgb,#ff6b6b 15%,transparent)}.property-card[data-astro-cid-n4wqsosf] h3[data-astro-cid-n4wqsosf]{margin-top:0;margin-bottom:1rem;color:#ff6b6b;font-size:1.2rem;font-weight:800}.property-list[data-astro-cid-n4wqsosf]{list-style:none;padding:0;margin:0}.property-list[data-astro-cid-n4wqsosf] li[data-astro-cid-n4wqsosf]{margin:.75rem 0;padding-left:1.5rem;position:relative;line-height:1.6;color:var(--text)}.property-list[data-astro-cid-n4wqsosf] li[data-astro-cid-n4wqsosf]:before{content:"→";position:absolute;left:0;color:#ff6b6b;font-weight:700}.chemical-props[data-astro-cid-n4wqsosf]{display:grid;gap:1rem}.prop-item[data-astro-cid-n4wqsosf]{display:grid;grid-template-columns:140px 1fr;gap:1rem;align-items:center;padding:.75rem;background:color-mix(in srgb,var(--primary) 5%,transparent);border-radius:var(--radius-md);border-left:3px solid var(--primary)}.prop-label[data-astro-cid-n4wqsosf]{font-weight:700;color:var(--primary);text-transform:uppercase;font-size:.9rem;letter-spacing:.05em}.prop-value[data-astro-cid-n4wqsosf]{font-weight:700;color:#ff6b6b}.compound-grid[data-astro-cid-n4wqsosf]{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.75rem}.compound-card[data-astro-cid-n4wqsosf]{padding:1.75rem;border-radius:var(--radius-lg);border-left:4px solid;background:color-mix(in srgb,var(--bg) 60%,transparent);transition:all .3s ease}.compound-card[data-astro-cid-n4wqsosf].sodium{border-left-color:#ffd93d;background:color-mix(in srgb,#ffd93d 5%,transparent)}.compound-card[data-astro-cid-n4wqsosf].potassium{border-left-color:#6bcb77;background:color-mix(in srgb,#6bcb77 5%,transparent)}.compound-card[data-astro-cid-n4wqsosf]:hover{transform:translateY(-4px);box-shadow:0 8px 24px #0000001a}.compound-card[data-astro-cid-n4wqsosf] h3[data-astro-cid-n4wqsosf]{margin-top:0;margin-bottom:1rem;font-size:1.15rem;font-weight:800}.compound-card[data-astro-cid-n4wqsosf].sodium h3[data-astro-cid-n4wqsosf]{color:#ffd93d}.compound-card[data-astro-cid-n4wqsosf].potassium h3[data-astro-cid-n4wqsosf]{color:#6bcb77}.compound-list[data-astro-cid-n4wqsosf]{list-style:none;padding:0;margin:0}.compound-list[data-astro-cid-n4wqsosf] li[data-astro-cid-n4wqsosf]{margin:.7rem 0;line-height:1.5;color:var(--text)}.trends-grid[data-astro-cid-n4wqsosf]{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.5rem}.trend-card[data-astro-cid-n4wqsosf]{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);transition:all .3s ease}.trend-card[data-astro-cid-n4wqsosf]:hover{border-color:var(--secondary);box-shadow:0 4px 16px color-mix(in srgb,var(--secondary) 15%,transparent);transform:translateY(-2px)}.trend-card[data-astro-cid-n4wqsosf] h3[data-astro-cid-n4wqsosf]{margin-top:0;margin-bottom:.75rem;color:var(--primary);font-size:1.05rem;font-weight:800}.trend-direction[data-astro-cid-n4wqsosf]{margin:.5rem 0;font-weight:800;color:#ff6b6b;font-size:1rem}.trend-sequence[data-astro-cid-n4wqsosf]{margin:.5rem 0;font-family:Courier New,monospace;font-size:.9rem;color:var(--text-muted);background:color-mix(in srgb,var(--bg) 50%,transparent);padding:.5rem;border-radius:4px}.trend-reason[data-astro-cid-n4wqsosf]{margin:0;font-size:.9rem;color:var(--text);line-height:1.5}.exam-section[data-astro-cid-n4wqsosf]{background:color-mix(in srgb,var(--secondary) 8%,transparent)!important;border-left:4px solid var(--secondary)!important}.exam-tips-grid[data-astro-cid-n4wqsosf]{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.75rem}.exam-tip-card[data-astro-cid-n4wqsosf]{padding:1.75rem;border-radius:var(--radius-lg);background:var(--bg);border:1px solid color-mix(in srgb,var(--border) 40%,transparent);transition:all .3s ease}.exam-tip-card[data-astro-cid-n4wqsosf].jee{border-left:4px solid #4d96ff;background:color-mix(in srgb,#4d96ff 5%,transparent)}.exam-tip-card[data-astro-cid-n4wqsosf].neet{border-left:4px solid #6bcb77;background:color-mix(in srgb,#6bcb77 5%,transparent)}.exam-tip-card[data-astro-cid-n4wqsosf].board{border-left:4px solid #ffd93d;background:color-mix(in srgb,#ffd93d 5%,transparent)}.exam-tip-card[data-astro-cid-n4wqsosf]:hover{transform:translateY(-4px);box-shadow:0 8px 24px #0000001a}.exam-tip-card[data-astro-cid-n4wqsosf] h3[data-astro-cid-n4wqsosf]{margin-top:0;margin-bottom:1rem;font-size:1.12rem;font-weight:800}.exam-tip-card[data-astro-cid-n4wqsosf].jee h3[data-astro-cid-n4wqsosf]{color:#4d96ff}.exam-tip-card[data-astro-cid-n4wqsosf].neet h3[data-astro-cid-n4wqsosf]{color:#6bcb77}.exam-tip-card[data-astro-cid-n4wqsosf].board h3[data-astro-cid-n4wqsosf]{color:#ffd93d}.exam-tip-card[data-astro-cid-n4wqsosf] ul[data-astro-cid-n4wqsosf]{list-style:none;padding:0;margin:0}.exam-tip-card[data-astro-cid-n4wqsosf] li[data-astro-cid-n4wqsosf]{margin:.7rem 0;padding-left:1.5rem;position:relative;line-height:1.6;color:var(--text)}.exam-tip-card[data-astro-cid-n4wqsosf] li[data-astro-cid-n4wqsosf]:before{content:"✓";position:absolute;left:0;font-weight:700;color:var(--secondary)}.mnemonic-section[data-astro-cid-n4wqsosf]{padding:2rem;background:color-mix(in srgb,#6bcb77 8%,transparent);border-left:4px solid #6bcb77;border-radius:var(--radius-xl);margin-bottom:2.5rem}.mnemonic-section[data-astro-cid-n4wqsosf] h2[data-astro-cid-n4wqsosf]{margin-top:0;margin-bottom:1.5rem;color:#6bcb77;font-size:1.5rem;font-weight:800}.mnemonic-cards[data-astro-cid-n4wqsosf]{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1rem}.mnemonic-card[data-astro-cid-n4wqsosf]{padding:1.25rem;background:var(--bg);border-radius:var(--radius-lg);border:1px solid #6bcb77;transition:all .3s ease}.mnemonic-card[data-astro-cid-n4wqsosf]:hover{border-color:var(--primary);box-shadow:0 4px 12px color-mix(in srgb,var(--primary) 15%,transparent)}.mnemonic-text[data-astro-cid-n4wqsosf]{margin:0;font-size:.95rem;line-height:1.6;color:var(--text)}.cta-links-section[data-astro-cid-n4wqsosf]{padding:2rem;background:color-mix(in srgb,var(--primary) 8%,transparent);border:1px solid color-mix(in srgb,var(--primary) 20%,transparent);border-radius:var(--radius-xl);text-align:center}.cta-links-section[data-astro-cid-n4wqsosf] h2[data-astro-cid-n4wqsosf]{margin-top:0;margin-bottom:2rem;color:var(--primary);font-size:1.5rem;font-weight:800}.links-grid[data-astro-cid-n4wqsosf]{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem}.resource-link[data-astro-cid-n4wqsosf]{display:flex;flex-direction:column;align-items:center;gap:.75rem;padding:1.5rem;background:var(--bg);border:1px solid color-mix(in srgb,var(--border) 40%,transparent);border-radius:var(--radius-lg);text-decoration:none;color:var(--primary);font-weight:700;transition:all .3s ease}.resource-link[data-astro-cid-n4wqsosf]:hover{border-color:var(--primary);box-shadow:0 4px 16px color-mix(in srgb,var(--primary) 15%,transparent);transform:translateY(-4px)}.link-icon[data-astro-cid-n4wqsosf]{font-size:2rem}.link-text[data-astro-cid-n4wqsosf]{font-size:.95rem}@media(prefers-reduced-motion:reduce){[data-astro-cid-n4wqsosf]{animation:none!important;transition:none!important}}@media(max-width:768px){.group-guide[data-astro-cid-n4wqsosf]{padding:1rem 1rem 2rem}.guide-header[data-astro-cid-n4wqsosf]{padding:2rem 1.5rem;margin-bottom:2rem}.header-title[data-astro-cid-n4wqsosf]{font-size:2rem}.content-section[data-astro-cid-n4wqsosf]{padding:1.5rem;margin-bottom:2rem}.content-section[data-astro-cid-n4wqsosf] h2[data-astro-cid-n4wqsosf]{font-size:1.35rem;margin-bottom:1.25rem}.compound-grid[data-astro-cid-n4wqsosf]{grid-template-columns:1fr}.trends-grid[data-astro-cid-n4wqsosf]{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}.exam-tips-grid[data-astro-cid-n4wqsosf]{grid-template-columns:1fr}.quick-nav[data-astro-cid-n4wqsosf]{gap:.75rem;margin-bottom:2rem}.nav-link[data-astro-cid-n4wqsosf]{padding:.6rem 1.25rem;font-size:.9rem}}@media(max-width:640px){.group-guide[data-astro-cid-n4wqsosf]{padding:.75rem .75rem 1.5rem}.guide-header[data-astro-cid-n4wqsosf]{padding:1.5rem 1rem;border-radius:var(--radius-lg)}.header-title[data-astro-cid-n4wqsosf]{font-size:1.6rem;margin-bottom:.75rem}.header-subtitle[data-astro-cid-n4wqsosf]{font-size:.95rem;margin-bottom:1rem}.content-section[data-astro-cid-n4wqsosf]{padding:1.25rem;border-radius:var(--radius-lg)}.content-section[data-astro-cid-n4wqsosf] h2[data-astro-cid-n4wqsosf]{font-size:1.15rem}.table-wrapper[data-astro-cid-n4wqsosf]{font-size:.85rem}.elements-table[data-astro-cid-n4wqsosf] th[data-astro-cid-n4wqsosf],.elements-table[data-astro-cid-n4wqsosf] td[data-astro-cid-n4wqsosf]{padding:.65rem .5rem}.prop-item[data-astro-cid-n4wqsosf]{grid-template-columns:100px 1fr;gap:.75rem}.mnemonic-cards[data-astro-cid-n4wqsosf],.links-grid[data-astro-cid-n4wqsosf]{grid-template-columns:1fr}}