:root{--bg-main: #f8fafc;--bg-card: #ffffff;--bg-subtle: #f1f5f9;--bg-muted: #e2e8f0;--border-light: #e2e8f0;--border-medium: #d1d5db;--border-strong: #cbd5e1;--border-dark: #0f172a;--text-primary: #0f172a;--text-secondary: #334155;--text-muted: #64748b;--accent-blue: #0284c7;--accent-blue-dark: #0369a1;--accent-blue-light: #f0f9ff;--accent-amber: #d97706;--accent-amber-light: #fffbe6;--accent-emerald: #15803d;--accent-emerald-light: #f0fdf4;--accent-rose: #be123c;--font-heading: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", "SF Mono", Consolas, monospace;--radius-sm: 3px;--radius-md: 5px;--radius-lg: 8px;--shadow-flat: 0 1px 3px rgba(0, 0, 0, .05), 0 1px 2px rgba(0, 0, 0, .03);--shadow-raised: 0 4px 12px -2px rgba(0, 0, 0, .08);--transition-fast: .12s ease-in-out}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-main);color:var(--text-primary);font-family:var(--font-body);line-height:1.5;-webkit-font-smoothing:antialiased;min-height:100vh;font-feature-settings:"cv02","cv03","cv04","cv11"}.tabular,input,code,pre,.mono,.result-val{font-family:var(--font-mono);font-variant-numeric:tabular-nums}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);color:var(--text-primary);font-weight:700;letter-spacing:-.025em}a{color:var(--accent-blue);text-decoration:none}a:hover{text-decoration:underline}.app-container{display:flex;flex-direction:column;min-height:100vh}.main-content{flex:1;max-width:1400px;width:100%;margin:0 auto;padding:2rem 1.5rem}.tech-card{background:var(--bg-card);border:1px solid var(--border-strong);border-radius:var(--radius-md);box-shadow:var(--shadow-flat)}.tech-card-hover{transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.tech-card-hover:hover{border-color:var(--text-primary);box-shadow:var(--shadow-raised)}.navbar{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--border-strong);padding:.75rem 1.5rem;transition:all .3s cubic-bezier(.4,0,.2,1)}.navbar.scrolled{background:#ffffffd9;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 4px 20px #00000014;padding:.5rem 1.5rem;border-bottom-color:#cbd5e180}.navbar-inner{max-width:1400px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:1.5rem}.brand-logo{display:flex;align-items:center;gap:.6rem;font-family:var(--font-heading);font-size:1.15rem;font-weight:800;color:var(--text-primary);cursor:pointer;letter-spacing:-.03em}.brand-icon{width:28px;height:28px;background:var(--text-primary);color:#fff;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-weight:900}.search-container{position:relative;flex:1;max-width:420px}.search-input{width:100%;padding:.5rem 1rem .5rem 2.4rem;background:var(--bg-main);border:1px solid var(--border-strong);border-radius:var(--radius-sm);color:var(--text-primary);font-size:.85rem;font-family:var(--font-body);outline:none;transition:border-color var(--transition-fast)}.search-input:focus{border-color:var(--text-primary);background:#fff}.search-icon{position:absolute;left:.75rem;top:50%;transform:translateY(-50%);color:var(--text-muted)}.unit-toggle-btn{display:flex;align-items:center;background:var(--bg-subtle);border:1px solid var(--border-strong);border-radius:var(--radius-sm);padding:2px;cursor:pointer}.unit-option{padding:.25rem .65rem;border-radius:2px;font-size:.75rem;font-weight:700;color:var(--text-muted);font-family:var(--font-mono)}.unit-option.active{background:var(--text-primary);color:#fff}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;padding:.5rem 1rem;border-radius:var(--radius-sm);font-size:.85rem;font-weight:600;cursor:pointer;border:1px solid transparent;transition:all var(--transition-fast)}.btn-primary{background:var(--text-primary);color:#fff;border-color:var(--text-primary)}.btn-primary:hover{background:#1e293b}.btn-secondary{background:#fff;color:var(--text-primary);border-color:var(--border-strong)}.btn-secondary:hover{background:var(--bg-subtle);border-color:var(--text-primary)}.btn-blue{background:var(--accent-blue-dark);color:#fff;border-color:var(--accent-blue-dark)}.btn-blue:hover{background:var(--accent-blue)}.calc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:1rem;margin-top:1.25rem}.calc-card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:.6rem}.calc-card-title{font-size:1rem;font-weight:700;color:var(--text-primary);margin-bottom:.35rem}.calc-card-desc{font-size:.82rem;color:var(--text-secondary);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.calc-card-footer{margin-top:1rem;padding-top:.65rem;border-top:1px dashed var(--border-light);display:flex;align-items:center;justify-content:space-between;font-size:.75rem;font-family:var(--font-mono);color:var(--text-muted)}.category-toolbar{display:flex;gap:.25rem;border-bottom:1px solid var(--border-strong);margin-top:1.25rem;overflow-x:auto}.cat-button{padding:.6rem 1rem;background:transparent;border:none;border-bottom:2px solid transparent;color:var(--text-muted);font-size:.85rem;font-weight:600;cursor:pointer;white-space:nowrap;transition:all var(--transition-fast)}.cat-button:hover{color:var(--text-primary)}.cat-button.active{color:var(--text-primary);border-bottom-color:var(--text-primary);font-weight:700}.calculator-view-grid{display:grid;grid-template-columns:1fr 420px;gap:1.5rem;margin-top:1.25rem}@media (max-width: 1024px){.calculator-view-grid{grid-template-columns:1fr}}.form-group{margin-bottom:1rem}.form-label{display:flex;align-items:center;justify-content:space-between;font-size:.82rem;font-weight:600;color:var(--text-secondary);margin-bottom:.35rem}.form-input-wrapper{display:flex;align-items:center;background:#fff;border:1px solid var(--border-strong);border-radius:var(--radius-sm);overflow:hidden}.form-input-wrapper:focus-within{border-color:var(--text-primary);box-shadow:0 0 0 1px var(--text-primary)}.form-input{flex:1;background:transparent;border:none;padding:.5rem .75rem;color:var(--text-primary);font-family:var(--font-mono);font-size:.95rem;font-weight:600;outline:none}.unit-tag{background:var(--bg-subtle);border-left:1px solid var(--border-light);color:var(--text-muted);padding:.5rem .75rem;font-size:.75rem;font-family:var(--font-mono);font-weight:700}.results-panel{background:#fff;border:1px solid var(--border-dark);border-radius:var(--radius-md);padding:1.25rem;box-shadow:var(--shadow-raised)}.primary-result-box{background:var(--accent-blue-light);border:1px solid #bae6fd;border-left:4px solid var(--accent-blue);padding:1rem;border-radius:var(--radius-sm);margin:1rem 0}.primary-result-val{font-family:var(--font-mono);font-size:2rem;font-weight:800;color:var(--accent-blue-dark);line-height:1.1;margin-top:.25rem}.sec-result-table{width:100%;border-collapse:collapse;margin-top:.75rem;font-size:.85rem}.sec-result-table td{padding:.5rem .65rem;border-bottom:1px solid var(--border-light)}.sec-result-table tr:last-child td{border-bottom:none}.methodology-box{margin-top:1.5rem;padding:1.25rem;background:#fff;border:1px solid var(--border-strong);border-radius:var(--radius-md)}.formula-display{background:var(--bg-subtle);border:1px solid var(--border-medium);padding:.85rem 1rem;border-radius:var(--radius-sm);font-family:var(--font-mono);color:var(--text-primary);font-size:.88rem;margin:.75rem 0;white-space:pre-wrap}.ad-slot{background:var(--bg-subtle);border:1px dashed var(--border-strong);border-radius:var(--radius-sm);padding:.75rem;text-align:center;margin:1.25rem 0;min-height:80px;display:flex;flex-direction:column;align-items:center;justify-content:center}.ad-slot-label{font-size:.68rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;font-weight:700}.ad-slot-content{font-size:.8rem;color:var(--text-secondary);font-family:var(--font-mono)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0f172a99;z-index:200;display:flex;align-items:center;justify-content:center;padding:1.5rem}.modal-content{background:#fff;border:1px solid var(--border-dark);border-radius:var(--radius-md);width:100%;max-width:800px;max-height:90vh;overflow-y:auto;padding:1.5rem;box-shadow:0 10px 30px #0003}@keyframes rotate-gear-continuous{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.subtle-gear-spin,.subtle-gear-spin>svg{animation:rotate-gear-continuous 36s linear infinite!important;transform-origin:50% 50%!important;transform-box:fill-box!important;display:inline-block!important;will-change:transform}@keyframes subtle-fluid-wave{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}.anim-fluid-pulse{background:linear-gradient(90deg,#f0f9ff,#e0f2fe,#f0f9ff);background-size:200% 100%;animation:subtle-fluid-wave 6s ease infinite}@keyframes subtle-belt-motion{0%{background-position:0 0}to{background-position:24px 0}}.anim-belt-flow{border-bottom:2px dashed #0284c7;animation:subtle-belt-motion 2s linear infinite}@keyframes subtle-electric-glow{0%,to{border-color:#bae6fd;box-shadow:0 0 #0284c700}50%{border-color:#38bdf8;box-shadow:0 0 8px #0284c733}}.anim-electric-pulse{animation:subtle-electric-glow 3s ease-in-out infinite}@keyframes subtle-particle-rise{0%{transform:translateY(0);opacity:.6}50%{transform:translateY(-4px);opacity:1}to{transform:translateY(0);opacity:.6}}.anim-particle-float{animation:subtle-particle-rise 2.5s ease-in-out infinite;display:inline-block}@keyframes subtle-signal-pulse{0%,to{opacity:.7}50%{opacity:1}}.anim-signal-bar{animation:subtle-signal-pulse 2s ease-in-out infinite}@media (max-width: 768px){.navbar-inner{flex-wrap:wrap;gap:.75rem}.search-container{order:3;max-width:100%;flex-basis:100%}.main-content{padding:1.25rem 1rem}.calc-grid{grid-template-columns:1fr}}@media (max-width: 640px){.navbar{padding:.5rem .75rem}.navbar-inner{gap:.5rem}.brand-logo{font-size:.95rem}.brand-logo .brand-icon{width:24px;height:24px}.main-content{padding:1rem .75rem}.calculator-view-grid{grid-template-columns:1fr}.primary-result-val{font-size:1.5rem}.modal-content{padding:1rem;max-width:100%}.modal-overlay{padding:.5rem}h1{font-size:1.4rem}}