.calculator-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px;margin-bottom:30px}.input-group-custom{margin-bottom:15px}.input-label{font-weight:500;color:#4a5568;margin-bottom:8px;display:flex;align-items:center;gap:8px;font-size:.9rem}.input-label i{color:#667eea;font-size:.85rem}.form-input{width:100%;padding:10px 12px;border:2px solid #48bb78;border-radius:10px;font-size:1rem;font-family:'Roboto Mono',monospace;transition:all .3s ease;background:#f0fff4}.form-input:focus{outline:none;border-color:#38a169;box-shadow:0 0 0 3px rgba(72,187,120,.2);transform:translateY(-2px)}.form-input.error{border-color:#ef4444;animation:shake .5s ease}.tooltip-icon{display:inline-flex;align-items:center;justify-content:center;width:16px;height:16px;border-radius:50%;background:#667eea;color:#fff;font-size:.65rem;cursor:help;margin-left:5px;position:relative}.tooltip-text{visibility:hidden;opacity:0;position:absolute;z-index:1000;bottom:125%;left:50%;transform:translateX(-50%);background-color:#2d3748;color:#fff;text-align:center;padding:8px 12px;border-radius:8px;font-size:.8rem;white-space:nowrap;transition:opacity .3s;box-shadow:0 4px 6px rgba(0,0,0,.1);font-weight:400}.tooltip-icon:hover .tooltip-text{visibility:visible;opacity:1}.result-inline{margin-top:15px;padding:20px;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border-radius:12px;text-align:center}.result-value-inline{font-family:'Roboto Mono',monospace;font-size:2.5rem;font-weight:700;color:#fff;margin-bottom:8px;text-shadow:0 2px 8px rgba(0,0,0,.2)}.result-description-inline{font-size:.95rem;color:rgba(255,255,255,.95);font-weight:500;line-height:1.4}.calculation-steps{margin-top:15px;padding:15px;background:rgba(102,126,234,.05);border-left:3px solid #667eea;border-radius:8px;animation:slideDown .3s ease}.steps-title{font-weight:600;color:#667eea;margin-bottom:10px;display:flex;align-items:center;gap:8px;font-size:1rem}.steps-content{color:#4a5568;line-height:1.8}.steps-content p{margin:8px 0;padding-left:20px;font-family:'Roboto Mono',monospace;font-size:.9rem}.expand-icon{font-size:1rem;color:#667eea}.calc-card.expanded .expand-icon{transform:rotate(180deg)}@keyframes slideDown{from{opacity:0;max-height:0;padding-top:0;padding-bottom:0}to{opacity:1;max-height:300px;padding-top:15px;padding-bottom:15px}}.button-section{margin-top:30px}@keyframes fadeInDown{from{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.05)}}@media(max-width:768px){.page-header h1{font-size:2rem}.page-header .subtitle{font-size:.95rem}.calculator-grid{grid-template-columns:1fr}.glass-card{padding:20px}.result-value-inline{font-size:2rem}}.seo-content{margin-top:50px;padding:40px 30px;background:#fff;border-radius:20px;box-shadow:0 4px 20px rgba(0,0,0,.08)}.seo-content h2{color:#2d3748;margin-bottom:20px;font-size:2rem;font-weight:700}.seo-content h3{color:#2d3748;margin-top:30px;margin-bottom:15px;font-size:1.5rem;font-weight:600}.seo-content p{color:#4a5568;line-height:1.8;margin-bottom:15px;font-size:1rem}.seo-content ul{margin-left:25px;margin-bottom:20px}.seo-content ul li{color:#4a5568;line-height:1.8;margin-bottom:10px}.seo-content ul li strong{color:#667eea}