.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:29px;height:29px;border:none;border-radius:50%;background:#fffffff2;color:#4b5563;cursor:pointer;transition:background .2s ease,color .2s ease;position:relative}.theme-toggle:hover{background:#fff}[data-theme=dark] .theme-toggle{background:#2a3651;color:#fbbf24}[data-theme=dark] .theme-toggle:hover{background:#3b4866}.theme-toggle__sun{display:none}.theme-toggle__moon,[data-theme=dark] .theme-toggle__sun{display:inline-flex}[data-theme=dark] .theme-toggle__moon{display:none}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #fafafa;--surface: #ffffff;--border: #e5e7eb;--text: #1a1a1a;--muted: #6b7280;--accent: #3b82f6;--accent-hover: #2563eb;--green: #16a34a;--orange: #d97706;--code-bg: rgba(0,0,0,.06);--row-hover: rgba(59,130,246,.08)}[data-theme=dark]{--bg: #0f172a;--surface: #1e293b;--border: #334155;--text: #e2e8f0;--muted: #94a3b8;--accent: #3b82f6;--accent-hover: #2563eb;--green: #22c55e;--orange: #f59e0b;--code-bg: rgba(0,0,0,.3);--row-hover: rgba(59,130,246,.05)}body{font-family:Inter,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.5;transition:background .2s ease,color .2s ease}.app{max-width:1200px;margin:0 auto;padding:1.5rem}.app-header{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:0}.app-header>div:first-child{flex:1}h1{font-size:1.5rem;font-weight:700;margin-bottom:.25rem}h2{font-size:1.1rem;font-weight:600;color:var(--accent);margin-bottom:.75rem}.subtitle{color:var(--muted);font-size:.85rem;margin-bottom:1.5rem}.controls{display:flex;flex-wrap:wrap;gap:1rem;margin-bottom:1.5rem;align-items:flex-end}.control-group{display:flex;flex-direction:column;gap:.25rem}.control-group label{font-size:.75rem;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;font-weight:600}.control-group input,.control-group select{background:var(--surface);border:1px solid var(--border);color:var(--text);padding:.5rem .75rem;border-radius:6px;font-size:.9rem;min-width:180px}.control-group input:focus,.control-group select:focus{outline:none;border-color:var(--accent)}.az-controls{display:flex;gap:.5rem;align-items:center}.az-btn{background:var(--surface);border:1px solid var(--border);color:var(--muted);padding:.4rem .75rem;border-radius:6px;cursor:pointer;font-size:.85rem;transition:all .15s}.az-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}.az-btn:hover{border-color:var(--accent)}.summary{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:.75rem;margin-bottom:1.5rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:1rem;text-align:center}.card .value{font-size:1.75rem;font-weight:700;color:var(--green)}.card .label{font-size:.75rem;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin-top:.25rem}.table-wrap{overflow-x:auto;border-radius:8px;border:1px solid var(--border)}table{width:100%;border-collapse:collapse;font-size:.85rem}thead{background:var(--surface)}th{padding:.6rem .75rem;text-align:left;font-weight:600;color:var(--muted);text-transform:uppercase;font-size:.7rem;letter-spacing:.05em;border-bottom:1px solid var(--border);white-space:nowrap}td{padding:.5rem .75rem;border-bottom:1px solid var(--border)}tr:last-child td{border-bottom:none}tr:hover{background:var(--row-hover)}.num{text-align:right;font-variant-numeric:tabular-nums}.total-row{background:var(--surface);font-weight:700}.total-row td{border-top:2px solid var(--accent)}.tag{display:inline-block;padding:.15rem .5rem;border-radius:4px;font-size:.75rem;font-weight:600}.tag-m{background:#22c55e26;color:var(--green)}.tag-c{background:#f59e0b26;color:var(--orange)}.profile-tabs{display:flex;gap:.5rem;margin-bottom:1.25rem}.profile-tab{background:var(--surface);border:1px solid var(--border);color:var(--muted);padding:.4rem 1rem;border-radius:6px;cursor:pointer;font-size:.85rem;transition:all .15s}.profile-tab.active{background:var(--accent);border-color:var(--accent);color:#fff}.profile-tab:hover{border-color:var(--accent)}.note{color:var(--muted);font-size:.8rem;margin-top:1rem;font-style:italic}.tag-scaling{font-size:.7rem;white-space:nowrap}.tag-sessions{background:#3b82f626;color:#60a5fa}.tag-registrations{background:#a855f726;color:#c084fc}.tag-signaling{background:#14b8a626;color:#2dd4bf}.tag-media{background:#f43f5e26;color:#fb7185}.tag-lookup{background:#f59e0b26;color:var(--orange)}.tag-management{background:#94a3b826;color:var(--muted)}.explanation{margin-top:2rem;padding-top:1.5rem;border-top:1px solid var(--border)}.explanation h2{margin-bottom:1rem}.explanation h3{font-size:.95rem;font-weight:600;color:var(--text);margin:1.5rem 0 .5rem}.explanation p{color:var(--muted);font-size:.85rem;line-height:1.7;margin-bottom:.75rem}.formula{font-family:Courier New,monospace;background:var(--surface);border:1px solid var(--border);padding:.75rem 1rem;border-radius:6px;color:var(--green);font-size:.85rem}.scaling-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:.75rem;margin:1rem 0}.scaling-card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:.75rem 1rem}.scaling-card-header{display:flex;align-items:center;gap:.5rem;margin-bottom:.5rem}.scaling-card-label{font-size:.75rem;color:var(--muted)}.scaling-card p{margin:0;font-size:.8rem}.cnf-explanations{display:flex;flex-direction:column;gap:.5rem;margin:.75rem 0}.cnf-explanation{background:var(--surface);border:1px solid var(--border);border-radius:6px;padding:.75rem 1rem}.cnf-explanation-header{display:flex;align-items:center;gap:.5rem;margin-bottom:.4rem}.cnf-explanation p{margin:0;font-size:.8rem;color:var(--muted);line-height:1.6}.assumptions-list{color:var(--muted);font-size:.8rem;line-height:1.7;padding-left:1.25rem}.assumptions-list li{margin-bottom:.25rem}.chat-fab{position:fixed;bottom:1.5rem;right:1.5rem;z-index:1000;width:56px;height:56px;border-radius:50%;border:none;background:var(--accent);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px #3b82f666;transition:transform .15s,box-shadow .15s}.chat-fab:hover{transform:scale(1.08);box-shadow:0 6px 24px #3b82f680}.chat-window{position:fixed;bottom:1.5rem;right:1.5rem;z-index:1001;background:var(--surface);border:1px solid var(--border);border-radius:14px;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 12px 40px #0000002e}[data-theme=dark] .chat-window{box-shadow:0 12px 40px #0009}.chat-window--maximized{bottom:auto;right:auto;border-radius:14px}.chat-resize{position:absolute;top:0;left:0;width:16px;height:16px;cursor:nw-resize;z-index:10}.chat-resize:after{content:"";position:absolute;top:3px;left:3px;width:8px;height:8px;border-top:2px solid var(--muted);border-left:2px solid var(--muted);opacity:.5}.chat-header{display:flex;align-items:center;justify-content:space-between;padding:.65rem .85rem;background:var(--surface);border-bottom:1px solid var(--border);cursor:grab;-webkit-user-select:none;user-select:none;flex-shrink:0}.chat-header:active{cursor:grabbing}.chat-header-title{display:flex;align-items:center;gap:.55rem;font-size:.92rem;font-weight:600;color:var(--text)}.chat-header-icon{display:inline-flex;color:var(--accent)}.chat-header-actions{display:flex;align-items:center;gap:.15rem}.chat-icon-btn{background:none;border:none;color:var(--muted);cursor:pointer;width:28px;height:28px;border-radius:6px;display:inline-flex;align-items:center;justify-content:center;transition:background .15s,color .15s}.chat-icon-btn:hover{background:var(--row-hover);color:var(--text)}.chat-banner{padding:1rem 1.1rem 1.05rem;color:#fff;background:linear-gradient(135deg,#5b6cff,#7c5cff,#a061d6)}.chat-banner-title{font-size:1rem;font-weight:700;margin-bottom:.35rem}.chat-banner-blurb{font-size:.8rem;line-height:1.5;opacity:.95;margin:0}.chat-messages{flex:1;overflow-y:auto;padding:.85rem;display:flex;flex-direction:column;gap:.5rem;background:var(--bg)}.chat-msg{display:flex}.chat-msg-user{justify-content:flex-end}.chat-msg-assistant{justify-content:flex-start}.chat-bubble{max-width:85%;padding:.5rem .75rem;border-radius:12px;font-size:.82rem;line-height:1.55;word-break:break-word;white-space:pre-wrap}.chat-msg-user .chat-bubble{background:var(--accent);color:#fff;border-bottom-right-radius:4px}.chat-msg-assistant .chat-bubble{background:var(--surface);color:var(--text);border-bottom-left-radius:4px;border:1px solid var(--border)}.chat-suggestions{display:flex;flex-direction:column;gap:.55rem;padding-top:.25rem}.chat-suggestions-header{display:flex;align-items:center;gap:.4rem;color:var(--accent);font-size:.85rem;font-weight:600;margin-bottom:.25rem}.chat-suggestion-pill{width:100%;text-align:center;background:var(--surface);border:1px solid var(--border);color:var(--text);padding:.7rem 1rem;border-radius:999px;font-size:.85rem;cursor:pointer;transition:background .15s,border-color .15s,transform .08s;font-weight:500}.chat-suggestion-pill:hover{border-color:var(--accent);background:var(--row-hover)}.chat-suggestion-pill:active{transform:scale(.99)}[data-theme=dark] .chat-suggestion-pill{background:#1a2438;border-color:#334155}[data-theme=dark] .chat-suggestion-pill:hover{background:#233049;border-color:var(--accent)}.chat-typing{display:flex;gap:4px;padding:.6rem .75rem}.chat-typing span{width:6px;height:6px;border-radius:50%;background:var(--muted);animation:chatBounce 1.2s infinite}.chat-typing span:nth-child(2){animation-delay:.2s}.chat-typing span:nth-child(3){animation-delay:.4s}@keyframes chatBounce{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-6px)}}.chat-input-bar{display:flex;gap:.5rem;padding:.7rem .85rem;border-top:1px solid var(--border);background:var(--surface);flex-shrink:0}.chat-input-bar input{flex:1;background:var(--bg);border:1px solid var(--border);color:var(--text);padding:.55rem .85rem;border-radius:999px;font-size:.85rem;outline:none}.chat-input-bar input::placeholder{color:var(--muted)}.chat-input-bar input:focus{border-color:var(--accent)}.chat-send-btn{background:var(--accent);border:none;color:#fff;border-radius:8px;width:38px;height:38px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:opacity .15s,background .15s}.chat-send-btn:disabled{opacity:.4;cursor:not-allowed}.chat-send-btn:hover:not(:disabled){background:var(--accent-hover)}.chat-md{font-size:.82rem;line-height:1.6}.chat-md h1{font-size:1rem;font-weight:700;margin:.75rem 0 .4rem;color:var(--accent)}.chat-md h2{font-size:.92rem;font-weight:700;margin:.6rem 0 .3rem;color:var(--accent)}.chat-md h3{font-size:.85rem;font-weight:600;margin:.5rem 0 .25rem;color:var(--text)}.chat-md p{margin:.3rem 0}.chat-md ul,.chat-md ol{margin:.3rem 0;padding-left:1.2rem}.chat-md li{margin:.15rem 0}.chat-md code{background:var(--code-bg);padding:.1rem .35rem;border-radius:3px;font-size:.78rem;font-family:Courier New,monospace}.chat-md pre{background:var(--code-bg);padding:.5rem .65rem;border-radius:6px;overflow-x:auto;margin:.4rem 0}.chat-md pre code{background:none;padding:0;font-size:.76rem}.chat-md table{border-collapse:collapse;width:100%;margin:.4rem 0;font-size:.78rem}.chat-md th{background:#3b82f626;padding:.3rem .5rem;text-align:left;border:1px solid var(--border);font-weight:600}.chat-md td{padding:.25rem .5rem;border:1px solid var(--border)}.chat-md hr{border:none;border-top:1px solid var(--border);margin:.5rem 0}.chat-md strong{color:var(--text)}.chat-md blockquote{border-left:3px solid var(--accent);padding-left:.6rem;margin:.4rem 0;color:var(--muted)}.table-header-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:.75rem}.table-header-row h2{margin-bottom:0}.export-buttons{display:flex;gap:.5rem}.export-btn{display:flex;align-items:center;gap:.35rem;background:var(--surface);border:1px solid var(--border);color:var(--muted);padding:.35rem .7rem;border-radius:6px;font-size:.78rem;font-weight:600;cursor:pointer;transition:all .15s}.export-btn:hover{border-color:var(--accent);color:var(--accent)}.pricing-section{margin-top:2rem;padding-top:1.5rem;border-top:1px solid var(--border)}.pricing-section h2{margin-bottom:.25rem}.ran-param-row{display:grid;grid-template-columns:250px 120px 1fr;gap:.5rem;align-items:center;font-size:.8rem}.ran-param-row label{color:var(--text)}.ran-param-row input,.ran-param-row select{background:var(--bg);border:1px solid var(--border);color:var(--text);padding:.3rem .5rem;border-radius:4px;font-size:.8rem}.ran-param-note{color:var(--muted);font-size:.75rem}.ran-param-why{color:var(--muted);font-size:.75rem;font-style:italic;line-height:1.5;margin:0}.ran-section{border:1px solid var(--border);border-radius:8px;margin-bottom:.5rem;overflow:hidden}.ran-section-disabled{opacity:.5}.ran-section-header{display:flex;align-items:center;gap:.5rem;padding:.5rem .75rem;background:var(--surface);cursor:pointer;-webkit-user-select:none;user-select:none}.ran-section-title{flex:1;font-size:.85rem;font-weight:600}.ran-section-cost{font-size:.8rem;color:var(--green);font-weight:600;font-variant-numeric:tabular-nums}.ran-expand{font-size:.7rem;color:var(--muted)}.ran-toggle{width:16px;height:16px;accent-color:var(--accent);cursor:pointer}.ran-params{padding:.5rem .75rem;display:flex;flex-direction:column;gap:.4rem}.ran-param-row{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}.ran-param-row label{font-size:.8rem;min-width:200px;color:var(--text)}.ran-param-row input,.ran-param-row select{background:var(--bg);border:1px solid var(--border);color:var(--text);padding:.3rem .5rem;border-radius:4px;font-size:.8rem;width:120px}.ran-param-row input:focus,.ran-param-row select:focus{outline:none;border-color:var(--accent)}.ran-param-note{font-size:.75rem;color:var(--muted)}.ran-param-why{font-size:.75rem;color:var(--muted);font-style:italic;margin:.2rem 0 0;line-height:1.4}th[title]{cursor:help;text-decoration:underline dotted var(--muted);text-underline-offset:3px}.ran-group-header{font-size:.9rem;font-weight:700;color:var(--accent);padding:.6rem .75rem;margin-top:1rem;margin-bottom:.25rem;border-left:3px solid var(--accent);background:#3b82f60d;border-radius:0 6px 6px 0}.editable-params-container{background:#3b82f60f;border:1.5px solid rgba(59,130,246,.25);border-radius:10px;padding:1rem;margin-top:.5rem}.discount-pricing-container{background:#3b82f608;border:1.5px solid rgba(59,130,246,.25);border-radius:10px;padding:1rem;margin-top:.5rem}.discount-pricing-container h2{margin-top:0}.manual-pricing-container{background:#a855f708;border:1.5px solid rgba(168,85,247,.25);border-radius:10px;padding:1rem;margin-top:.5rem}.manual-pricing-container h2{margin-top:0;color:#c084fc}