:root{--font-family:"Open Sans",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;--bg-primary:#f8fafc;--bg-secondary:#ffffff;--bg-tertiary:#f1f5f9;--bg-card:rgba(255,255,255,0.85);--bg-card-secondary:#f8fafc;--text-primary:#0f172a;--text-secondary:#475569;--text-tertiary:#64748b;--primary:#4f46e5;--primary-hover:#4338ca;--primary-glow:rgba(79,70,229,0.08);--success:#10b981;--success-glow:rgba(16,185,129,0.08);--warning:#f59e0b;--info:#0ea5e9;--error:#ef4444;--border-color:rgba(226,232,240,0.8);--border-focus:#4f46e5;--shadow-sm:0 1px 2px 0 rgba(0,0,0,0.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.05),0 2px 4px -1px rgba(0,0,0,0.03);--shadow-lg:0 10px 25px -5px rgba(0,0,0,0.05),0 8px 10px -6px rgba(0,0,0,0.05);--shadow-xl:0 20px 40px -10px rgba(15,23,42,0.05);--shadow-glow:0 0 20px rgba(79,70,229,0.06);--radius-sm:8px;--radius-md:12px;--radius-lg:18px;--radius-xl:28px;--radius-full:9999px;--transition:background-color 0.15s ease,color 0.15s ease,border-color 0.15s ease,opacity 0.15s ease,transform 0.15s ease,box-shadow 0.15s ease;--backdrop:blur(12px)}.theme-switching,.theme-switching *{transition:none!important}[data-theme=dark]{--bg-primary:#070913;--bg-secondary:#0f1322;--bg-tertiary:#171d34;--bg-card:rgba(15,19,34,0.8);--bg-card-secondary:#171d34;--text-primary:#f8fafc;--text-secondary:#cbd5e1;--text-tertiary:#94a3b8;--primary:#a855f7;--primary-hover:#9333ea;--primary-glow:rgba(217,70,239,0.2);--success:#34d399;--success-glow:rgba(52,211,153,0.15);--warning:#fbbf24;--info:#38bdf8;--error:#f87171;--border-color:rgba(255,255,255,0.07);--border-focus:#6366f1;--shadow-sm:0 1px 2px 0 rgba(0,0,0,0.3);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.2),0 2px 4px -1px rgba(0,0,0,0.1);--shadow-lg:0 10px 25px -5px rgba(0,0,0,0.3),0 8px 10px -6px rgba(0,0,0,0.2);--shadow-xl:0 20px 40px -10px rgba(0,0,0,0.4);--shadow-glow:0 0 25px rgba(99,102,241,0.12)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-family);background-color:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color .15s ease,color .15s ease;position:relative;overflow-x:hidden}body:before{content:"";position:absolute;top:0;left:0;width:100%;height:600px;background:radial-gradient(circle at 50% -20%,var(--primary-glow) 0,transparent 70%);pointer-events:none;z-index:-1}#app{max-width:1280px;margin:0 auto;padding:24px;min-height:100vh;display:flex;flex-direction:column}#app>main{width:100%;max-width:100%;box-sizing:border-box;flex-grow:1;flex-shrink:0}a{color:var(--primary);text-decoration:none;transition:var(--transition)}a:hover{color:var(--primary-hover)}.topbar{display:flex;justify-content:space-between;padding:16px 28px;background-color:var(--bg-card);backdrop-filter:var(--backdrop);-webkit-backdrop-filter:var(--backdrop);border:1px solid var(--border-color);border-radius:var(--radius-lg);margin-bottom:32px;box-shadow:var(--shadow-md);z-index:100;gap:20px;flex-wrap:wrap}.brand,.topbar{align-items:center;transition:var(--transition)}.brand{display:inline-flex;gap:12px;font-weight:800;font-size:1.45rem;letter-spacing:-.02em;color:var(--text-primary);text-decoration:none;padding:6px 14px;border-radius:var(--radius-md);background:var(--bg-secondary);border:1px solid var(--border-color);box-shadow:var(--shadow-sm);flex-shrink:0}.brand:hover{border-color:var(--primary);box-shadow:var(--shadow-glow);transform:translateY(-1px)}.brand img{width:48px;height:48px;object-fit:contain;border-radius:var(--radius-sm);flex-shrink:0;transform:scale(1.15);transform-origin:center center;transition:transform .3s cubic-bezier(.34,1.56,.64,1)}.brand:hover img{transform:scale(1.25) rotate(-3deg)}.brand-text-wrapper{align-items:center;gap:8px}.brand-tag{font-size:.68rem;font-weight:800;padding:2px 7px;background:var(--primary-glow);color:var(--primary);border:1px solid rgba(79,70,229,.25);border-radius:var(--radius-full);text-transform:uppercase;letter-spacing:.05em}.nav-right{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.nav-link-item{color:var(--text-secondary);font-size:.9rem;font-weight:600;padding:8px 14px;border-radius:var(--radius-md);transition:var(--transition);text-decoration:none;display:inline-flex;align-items:center;gap:6px}.nav-link-item.active,.nav-link-item:hover{color:var(--primary);background:var(--primary-glow)}.github-link,.x-link{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:var(--radius-md);border:1px solid var(--border-color);background:var(--bg-secondary);color:var(--text-primary);font-size:.9rem;font-weight:700;transition:var(--transition)}.github-link:hover,.x-link:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px);box-shadow:var(--shadow-sm)}.theme-toggle-btn{background:var(--bg-secondary);border:1px solid var(--border-color);color:var(--text-primary);padding:8px 14px;border-radius:var(--radius-md);cursor:pointer;display:flex;align-items:center;gap:8px;font-size:.9rem;font-weight:600;transition:var(--transition)}.theme-toggle-btn:hover{background-color:var(--bg-tertiary);border-color:var(--primary);color:var(--primary)}.hero{display:grid;grid-template-columns:1.2fr .8fr;grid-gap:40px;gap:40px;align-items:center;padding:48px;background-color:var(--bg-card);backdrop-filter:var(--backdrop);-webkit-backdrop-filter:var(--backdrop);border:1px solid var(--border-color);border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);margin-bottom:40px;position:relative;overflow:hidden}.hero:after{content:"";position:absolute;bottom:-50px;right:-50px;width:250px;height:250px;background:radial-gradient(circle,var(--primary-glow) 0,transparent 70%);filter:blur(40px);pointer-events:none}.hero-copy{display:flex;flex-direction:column;gap:16px}.eyebrow{font-size:.85rem;font-weight:700;text-transform:uppercase;letter-spacing:.15em;color:var(--primary)}.hero h1{font-size:clamp(2rem,4vw,3rem);line-height:1.15;font-weight:800;letter-spacing:-.03em;color:var(--text-primary)}.lead{font-size:1.1rem;color:var(--text-secondary);max-width:600px}.hero-actions{display:flex;gap:16px;margin-top:12px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--radius-md);font-weight:600;font-size:.95rem;transition:var(--transition);cursor:pointer;border:none}.btn-primary{background:linear-gradient(135deg,#9333ea,#ff2a85);color:#ffffff;border:none;box-shadow:0 4px 18px rgba(255,42,133,.35);transition:transform .25s cubic-bezier(.34,1.56,.64,1),box-shadow .25s ease,filter .25s ease}.btn-primary:hover{background:linear-gradient(135deg,#7e22ce,#e11d48);transform:translateY(-2px) scale(1.02);box-shadow:0 8px 25px rgba(255,42,133,.5);filter:brightness(1.08)}.btn-secondary{background-color:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background-color:var(--bg-card-secondary);border-color:var(--text-secondary);transform:translateY(-2px)}.hero-highlights{display:flex;gap:20px;list-style:none;margin-top:16px}.hero-highlights li{display:flex;align-items:center;gap:8px;font-size:.9rem;font-weight:600;color:var(--text-secondary)}.hero-highlights li svg{color:var(--success);width:18px;height:18px}.hero-card{padding:32px;background:linear-gradient(135deg,var(--bg-secondary) 0,var(--bg-tertiary) 100%);border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);display:flex;flex-direction:column;gap:12px}.hero-card h2{font-size:1.4rem;font-weight:700;letter-spacing:-.01em}.hero-card p{font-size:.95rem;color:var(--text-secondary)}.controls-bar{display:flex;flex-direction:column;gap:20px;margin-bottom:32px;background-color:var(--bg-card);backdrop-filter:var(--backdrop);-webkit-backdrop-filter:var(--backdrop);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-md)}.search-wrapper{position:relative;width:100%}.search-wrapper-large{max-width:820px;margin-top:24px}.search-input{width:100%;padding:14px 16px 14px 48px;border-radius:var(--radius-md);border:1px solid var(--border-color);background-color:var(--bg-secondary);color:var(--text-primary);font-family:var(--font-family);font-size:1rem;transition:var(--transition)}.search-input:focus{border-color:var(--border-focus);outline:none;box-shadow:0 0 0 3px var(--primary-glow)}.search-page-link{display:inline-flex;margin-top:12px;font-size:.9rem;font-weight:700}.search-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--text-tertiary);pointer-events:none;width:20px;height:20px}.category-tabs{display:flex;flex-wrap:wrap;gap:10px}.tab-btn{background-color:var(--bg-secondary);border:1px solid var(--border-color);color:var(--text-secondary);padding:10px 18px;border-radius:var(--radius-full);font-weight:600;font-size:.9rem;cursor:pointer;display:flex;align-items:center;gap:8px;transition:var(--transition)}.tab-btn:hover{background-color:var(--bg-tertiary);color:var(--text-primary)}.tab-btn.active{background:linear-gradient(135deg,#9333ea,#ff2a85);border-color:transparent;color:#ffffff;box-shadow:0 4px 14px rgba(255,42,133,.4)}.tools-section{display:flex;flex-direction:column;gap:24px;margin-bottom:48px}.section-title{font-size:1.5rem;font-weight:800;letter-spacing:-.02em;display:flex;align-items:center;gap:10px}.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));grid-gap:20px;gap:20px}.tool-card{background-color:var(--bg-card);backdrop-filter:var(--backdrop);-webkit-backdrop-filter:var(--backdrop);border:1px solid var(--border-color);border-top:3px solid var(--primary);border-radius:var(--radius-xl);padding:26px 24px;box-shadow:0 10px 28px -6px rgba(0,0,0,.22);display:flex;flex-direction:column;gap:14px;transition:all .3s cubic-bezier(.16,1,.3,1);overflow:hidden}.tool-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,#9333ea,#ff2a85);opacity:.8}.tool-card:hover{transform:translateY(-6px);box-shadow:0 20px 40px -10px rgba(0,0,0,.35),0 0 0 1px var(--primary)}.card-top{justify-content:space-between}.card-top,.tool-icon-wrapper{display:flex;align-items:center}.tool-icon-wrapper{width:48px;height:48px;border-radius:12px;background-color:var(--bg-tertiary);border:1px solid var(--border-color);justify-content:center;color:var(--primary);transition:var(--transition);box-shadow:0 2px 6px rgba(0,0,0,.1)}.tool-card:hover .tool-icon-wrapper{background:linear-gradient(135deg,#9333ea,#ff2a85);color:#ffffff;border-color:transparent}.favorite-btn{background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:50%;cursor:pointer;color:var(--text-tertiary);width:34px;height:34px;transition:var(--transition);display:flex;align-items:center;justify-content:center}.favorite-btn:hover{background:var(--bg-secondary);transform:scale(1.1)}.favorite-btn.active,.favorite-btn:hover{color:var(--warning);border-color:var(--warning)}.favorite-btn.active{background:rgba(245,158,11,.15)}.tool-card h3{font-size:1.2rem;font-weight:800;color:var(--text-primary);letter-spacing:-.02em;margin-top:2px}.tool-card p{font-size:.92rem;color:var(--text-secondary);line-height:1.6;flex-grow:1}.tool-footer{display:flex;justify-content:space-between;align-items:center;margin-top:10px;padding-top:14px;border-top:1px solid var(--border-color)}.category-badge{font-size:.75rem;font-weight:800;text-transform:uppercase;letter-spacing:.05em;padding:5px 10px;border-radius:var(--radius-full);background-color:var(--bg-tertiary);color:var(--text-secondary);border:1px solid var(--border-color)}.category-badge.finance{background-color:rgba(79,70,229,.12);color:var(--primary);border-color:rgba(79,70,229,.25)}.category-badge.health{background-color:rgba(16,185,129,.12);color:var(--success);border-color:rgba(16,185,129,.25)}.category-badge.converters{background-color:rgba(14,165,233,.12);color:var(--info);border-color:rgba(14,165,233,.25)}.category-badge.everyday{background-color:rgba(245,158,11,.12);color:var(--warning);border-color:rgba(245,158,11,.25)}.category-badge.seo{background-color:rgba(236,72,153,.14);color:#db2777;border-color:rgba(236,72,153,.3)}.open-link{font-size:.88rem;font-weight:800;display:inline-flex;align-items:center;gap:6px;color:var(--primary);background:var(--bg-tertiary);padding:6px 14px;border-radius:var(--radius-full);border:1px solid var(--border-color);transition:var(--transition)}.open-link:hover{background:var(--primary);color:#ffffff;border-color:var(--primary)}.page-shell{gap:32px}.calc-header,.page-shell{display:flex;flex-direction:column}.calc-header{gap:8px;background-color:var(--bg-card);backdrop-filter:var(--backdrop);-webkit-backdrop-filter:var(--backdrop);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow-md);position:relative}.calc-header-meta{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}.calc-header h1{font-size:2.2rem;font-weight:800;letter-spacing:-.02em}.calc-actions{display:flex;gap:12px}.card-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:32px;gap:32px;align-items:start}.calculator-card,.result-card{padding:32px;background-color:var(--bg-card);backdrop-filter:var(--backdrop);-webkit-backdrop-filter:var(--backdrop);border:1px solid var(--border-color);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg)}.calculator-form{gap:20px}.calculator-form,.form-group{display:flex;flex-direction:column}.form-group{gap:8px}.form-group label{font-weight:600;font-size:.95rem;color:var(--text-primary);display:flex;justify-content:space-between}.form-group label .field-val-display{color:var(--primary);font-weight:700}.form-group input,.form-group select{padding:12px 16px;border-radius:var(--radius-md);border:1px solid var(--border-color);background-color:var(--bg-secondary);color:var(--text-primary);font-family:var(--font-family);font-size:1rem;transition:var(--transition);width:100%}.form-group input:focus,.form-group select:focus{border-color:var(--border-focus);outline:none;box-shadow:0 0 0 3px var(--primary-glow)}.form-group textarea{min-height:160px;resize:vertical;padding:12px 16px;border-radius:var(--radius-md);border:1px solid var(--border-color);background-color:var(--bg-secondary);color:var(--text-primary);font-family:var(--font-family);font-size:1rem;transition:var(--transition);width:100%}.form-group textarea:focus{border-color:var(--border-focus);outline:none;box-shadow:0 0 0 3px var(--primary-glow)}.slider-container{display:flex;align-items:center;gap:12px;margin-top:4px}.slider-input{-webkit-appearance:none;-moz-appearance:none;appearance:none;flex-grow:1;height:6px;border-radius:var(--radius-full);background:var(--bg-tertiary);outline:none;transition:var(--transition);padding:0!important;border:none!important}.slider-input::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:var(--primary);cursor:pointer;box-shadow:0 2px 6px rgba(0,0,0,.15);-webkit-transition:var(--transition);transition:var(--transition)}.slider-input::-webkit-slider-thumb:hover{transform:scale(1.2);background:var(--primary-hover)}.slider-input::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:var(--primary);cursor:pointer;border:none;box-shadow:0 2px 6px rgba(0,0,0,.15);-moz-transition:var(--transition);transition:var(--transition)}.slider-input::-moz-range-thumb:hover{transform:scale(1.2);background:var(--primary-hover)}.result-card{display:flex;flex-direction:column;gap:24px;background:linear-gradient(180deg,var(--bg-card) 0,rgba(79,70,229,.02) 100%);position:-webkit-sticky;position:sticky;top:24px}.result-card h2{font-size:1.5rem;font-weight:800;letter-spacing:-.01em;border-bottom:1px solid var(--border-color);padding-bottom:12px}#results-root{display:flex;flex-direction:column;gap:16px}.result-row{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md);transition:var(--transition)}.result-row:hover{border-color:var(--primary);transform:translateX(4px)}.result-row span{font-size:.95rem;font-weight:500;color:var(--text-secondary)}.result-row strong{font-size:1.2rem;font-weight:800;color:var(--text-primary)}.mono{font-family:ui-monospace,SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;word-break:break-word}.code-block{padding:18px;border-radius:var(--radius-md);border:1px solid var(--border-color);background:var(--bg-secondary);color:var(--text-primary);overflow:auto;font-size:.9rem;line-height:1.7;white-space:pre-wrap}.chart-box{margin-top:12px;padding:16px;background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md)}.chart-box,.donut-container{display:flex;justify-content:center;align-items:center}.donut-container{position:relative}.donut-chart circle{transition:stroke-dasharray .3s ease,stroke-dashoffset .3s ease}.chart-container{width:100%;display:flex;flex-direction:column;gap:12px}.area-chart{width:100%;height:auto;overflow:visible}.chart-legend{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;font-size:.85rem;font-weight:600;color:var(--text-secondary)}.legend-color{display:inline-block;width:12px;height:12px;border-radius:3px;vertical-align:middle;margin-right:4px}.gauge-container{width:100%;display:flex;flex-direction:column;gap:12px;padding:8px 4px}.gauge-bar{width:100%;height:14px;background-color:var(--bg-tertiary);border-radius:var(--radius-full);display:flex;position:relative;overflow:visible}.gauge-segment{height:100%}.gauge-segment:first-child{border-top-left-radius:var(--radius-full);border-bottom-left-radius:var(--radius-full)}.gauge-segment:last-child{border-top-right-radius:var(--radius-full);border-bottom-right-radius:var(--radius-full)}.gauge-segment.info{background-color:var(--info)}.gauge-segment.success{background-color:var(--success)}.gauge-segment.warning{background-color:var(--warning)}.gauge-segment.error{background-color:var(--error)}.gauge-pointer{position:absolute;top:-4px;width:6px;height:22px;border-radius:var(--radius-full);box-shadow:0 2px 8px rgba(0,0,0,.4);transform:translateX(-50%);transition:left .4s cubic-bezier(.175,.885,.32,1.275)}.gauge-labels{display:flex;justify-content:space-between;font-size:.75rem;font-weight:600;color:var(--text-tertiary);padding:0 4px}.gauge-status{text-align:center;font-size:.95rem;font-weight:600;margin-top:4px}.goal-bar-container{width:100%;display:flex;flex-direction:column;gap:6px}.goal-bar-bg{width:100%;height:10px;background-color:var(--bg-tertiary);overflow:hidden}.goal-bar-bg,.goal-bar-fill{border-radius:var(--radius-full)}.goal-bar-fill{height:100%;background-color:var(--primary);transition:width .4s ease}.goal-text{font-size:.85rem;font-weight:600;color:var(--text-secondary);text-align:right}.info-section{display:flex;flex-direction:column;gap:24px;margin-top:16px}.accordion-title{font-size:1.4rem;font-weight:800;letter-spacing:-.01em;margin-bottom:8px}.faq-list{display:flex;flex-direction:column;gap:12px}.faq-item{border:1px solid var(--border-color);background-color:var(--bg-card);border-radius:var(--radius-md);overflow:hidden;transition:var(--transition)}.faq-item:hover{border-color:var(--primary-hover)}.faq-question{width:100%;padding:16px 20px;background:none;border:none;text-align:left;font-weight:700;font-size:1rem;color:var(--text-primary);cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:var(--transition)}.faq-question:focus{outline:none;background-color:var(--bg-tertiary)}.faq-answer{padding:0 20px;max-height:0;overflow:hidden;color:var(--text-secondary);font-size:.95rem;line-height:1.6;transition:max-height .25s ease-out,padding .25s ease-out}.faq-item.open .faq-answer{padding:0 20px 20px;max-height:250px}.faq-icon{font-size:1.1rem;font-weight:400;transition:transform .25s ease}.faq-item.open .faq-icon{transform:rotate(45deg)}.formula-card{padding:24px;background-color:var(--bg-card-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md);display:flex;flex-direction:column;gap:10px}.formula-card 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