.log-calculator{--log-primary: #ca8a04;--log-secondary: #eab308;--log-accent: #fde047;--log-bg: #fefce8;--log-card-bg: #ffffff;--log-text: #713f12;--log-text-muted: #a16207;--log-border: #fef08a;--log-shadow: 0 4px 20px rgba(202, 138, 4, .12);max-width:900px;margin:0 auto;font-family:system-ui,-apple-system,sans-serif}.log-header{text-align:center;margin-bottom:2rem}.log-title{font-size:2rem;font-weight:800;color:var(--log-primary);margin:0 0 .5rem}.log-description{color:var(--log-text-muted);font-size:1.1rem;margin:0}.log-formula-container{background:linear-gradient(135deg,var(--log-bg) 0%,#fef9c3 100%);border-radius:16px;padding:1.5rem;margin-bottom:2rem;border:1px solid var(--log-border)}.log-formula-title{font-size:1.1rem;font-weight:700;color:var(--log-primary);margin:0 0 1rem;text-align:center}.log-formula-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem}.log-formula-card{background:var(--log-card-bg);border-radius:12px;padding:1rem;text-align:center}.log-formula-label{display:block;font-size:.85rem;font-weight:600;color:var(--log-text-muted);margin-bottom:.5rem}.log-formula-math{font-size:.95rem;color:var(--log-text);overflow-x:auto}.log-form-container{background:var(--log-card-bg);border-radius:16px;padding:1.5rem;box-shadow:var(--log-shadow);margin-bottom:2rem}.log-form{display:flex;flex-direction:column;gap:1.25rem}.log-input-group{display:flex;flex-direction:column;gap:.5rem}.log-label{font-weight:600;font-size:.9rem;color:var(--log-text)}.log-input{width:100%;padding:.875rem 1rem;border:2px solid var(--log-border);border-radius:10px;font-size:1.1rem;background:var(--log-bg)}.log-input:focus{outline:none;border-color:var(--log-primary);background:#fff}.log-type-buttons{display:flex;gap:.5rem}.log-type-btn{flex:1;padding:.75rem .5rem;background:var(--log-bg);border:2px solid var(--log-border);border-radius:10px;font-size:.85rem;font-weight:600;cursor:pointer;transition:all .2s;color:var(--log-text-muted)}.log-type-active{background:var(--log-primary);border-color:var(--log-primary);color:#fff}.log-buttons{display:flex;gap:1rem}.log-btn{flex:1;padding:1rem;border:none;border-radius:10px;font-size:1rem;font-weight:700;cursor:pointer}.log-btn-primary{background:linear-gradient(135deg,var(--log-primary) 0%,var(--log-secondary) 100%);color:#fff}.log-btn-secondary{background:var(--log-bg);color:var(--log-text-muted);border:2px solid var(--log-border)}.log-results{background:var(--log-card-bg);border-radius:16px;padding:1.5rem;box-shadow:var(--log-shadow);margin-bottom:2rem}.log-results-title{font-size:1.25rem;font-weight:700;color:var(--log-primary);margin:0 0 1.5rem;text-align:center}.log-main-result{text-align:center;background:linear-gradient(135deg,var(--log-primary) 0%,var(--log-secondary) 100%);border-radius:16px;padding:2rem;margin-bottom:1.5rem}.log-main-label{display:block;font-size:1rem;color:#ffffffe6;margin-bottom:.5rem;font-family:monospace}.log-main-value{font-size:2.5rem;font-weight:800;color:#fff}.log-summary-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-bottom:1rem}.log-summary-card{background:var(--log-bg);border-radius:12px;padding:1rem;text-align:center}.log-summary-label{display:block;font-size:.75rem;font-weight:600;color:var(--log-text-muted);margin-bottom:.25rem}.log-summary-value{font-size:1rem;font-weight:800;color:var(--log-text)}.log-exponential{background:var(--log-bg);border-radius:12px;padding:1rem;text-align:center}.log-exp-label{font-size:.85rem;color:var(--log-text-muted)}.log-exp-value{display:block;font-size:1.1rem;font-weight:700;color:var(--log-text);font-family:monospace;margin-top:.5rem}.log-content{margin-top:3rem}.log-content-section{margin-bottom:2.5rem}.log-content-title{font-size:1.5rem;font-weight:700;color:var(--log-text);margin:0 0 1rem;padding-bottom:.5rem;border-bottom:3px solid var(--log-primary)}.log-content-text{color:var(--log-text-muted);line-height:1.7;margin:0 0 1rem}.log-features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-top:1.5rem}.log-feature-card{background:var(--log-bg);border-radius:12px;padding:1.25rem;text-align:center}.log-feature-icon{font-size:2rem;display:block;margin-bottom:.75rem}.log-feature-title{font-size:1rem;font-weight:700;color:var(--log-text);margin:0 0 .5rem}.log-feature-desc{font-size:.85rem;color:var(--log-text-muted);margin:0}.log-table-wrapper{overflow-x:auto;border-radius:12px;margin-top:1.5rem}.log-table{width:100%;border-collapse:collapse;background:#fff;font-size:.9rem}.log-table th{background:var(--log-primary);color:#fff;padding:.875rem 1rem;text-align:left}.log-table td{padding:.75rem 1rem;border-bottom:1px solid var(--log-border)}.log-table-rule{font-weight:700;color:var(--log-primary)}.log-tips-grid{display:grid;gap:1rem;margin-top:1.5rem}.log-tip-card{display:flex;gap:1rem;background:var(--log-card-bg);border-radius:12px;padding:1.25rem;border-left:4px solid var(--log-primary)}.log-tip-icon{font-size:1.5rem}.log-tip-title{font-size:1rem;font-weight:700;color:var(--log-text);margin:0 0 .5rem}.log-tip-text{font-size:.9rem;color:var(--log-text-muted);margin:0}.log-faqs{display:flex;flex-direction:column;gap:1rem;margin-top:1.5rem}.log-faq-item{background:var(--log-card-bg);border-radius:12px;padding:1.25rem}.log-faq-question{font-size:1rem;font-weight:700;color:var(--log-primary);margin:0 0 .75rem}.log-faq-answer{font-size:.9rem;color:var(--log-text-muted);margin:0;line-height:1.6}@media (max-width: 768px){.log-type-buttons{flex-direction:column}.log-summary-grid{grid-template-columns:1fr}}