:root{--navy: #0b2545;--navy-2: #13315c;--gold: #b8860b;--gold-2: #d4a017;--bg: #f4f6f9;--card: #ffffff;--text: #1c2b3a;--muted: #5b6b7c;--border: #e1e6ed;--green: #1f7a4d;--amber: #b8860b;--red: #b23b3b;--radius: 10px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5}.app-shell{max-width:960px;margin:0 auto;padding:0 24px 96px}header.top-nav{display:flex;justify-content:space-between;align-items:flex-end;padding:24px 0;border-bottom:1px solid var(--border);margin-bottom:32px}.logo-cf{height:100px;width:auto;display:block}.logo-ai{height:112px;width:auto;display:block;margin-bottom:10px}@media (max-width: 600px){.logo-cf{height:76px}.logo-ai{height:84px;margin-bottom:7px}}h1{font-size:28px;color:var(--navy);margin:0 0 8px;letter-spacing:-.01em}h2{font-size:19px;color:var(--navy);margin:0 0 4px}p.lede{color:var(--muted);margin:0 0 32px;max-width:640px}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;margin-bottom:24px;box-shadow:0 1px 2px #0b25450a}.step-indicator{display:flex;gap:8px;margin-bottom:28px}.step-dot{flex:1;height:4px;border-radius:2px;background:var(--border)}.step-dot.active{background:var(--gold)}.step-dot.done{background:var(--navy-2)}.field-group{margin-bottom:22px}.field-label{display:block;font-weight:600;font-size:14px;color:var(--navy);margin-bottom:6px}.field-hint{font-size:13px;color:var(--muted);margin:0 0 10px}.checkbox-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:8px}.checkbox-row{display:flex;align-items:flex-start;gap:8px;padding:10px 12px;border:1px solid var(--border);border-radius:8px;cursor:pointer;font-size:14px}.checkbox-row:hover{border-color:var(--gold-2)}.checkbox-row input{margin-top:2px}input[type=number],input[type=text]{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;font-family:inherit}input[type=number]:focus,input[type=text]:focus{outline:2px solid var(--gold-2);outline-offset:1px}.toggle-row{display:flex;align-items:center;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--border)}.toggle-row:last-child{border-bottom:none}.toggle-row .label{font-size:14px;color:var(--text)}.toggle-row .sub{font-size:12px;color:var(--muted);margin-top:2px}.switch{position:relative;width:42px;height:24px;flex-shrink:0}.switch input{opacity:0;width:0;height:0}.slider{position:absolute;cursor:pointer;top:0;right:0;bottom:0;left:0;background:#cbd3dc;border-radius:24px;transition:.15s}.slider:before{content:"";position:absolute;height:18px;width:18px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.15s}.switch input:checked+.slider{background:var(--navy)}.switch input:checked+.slider:before{transform:translate(18px)}.btn-row{display:flex;justify-content:space-between;margin-top:8px}button{font-family:inherit;font-size:14px;font-weight:600;border-radius:8px;padding:12px 22px;cursor:pointer;border:none}.btn-primary{background:var(--gold);color:#fff}.btn-primary:hover{background:var(--gold-2)}.btn-primary:disabled{background:#d8d2c0;cursor:not-allowed}.btn-secondary{background:transparent;color:var(--navy);border:1px solid var(--border)}.btn-secondary:hover{border-color:var(--navy)}.result-card{border-left:4px solid var(--border)}.result-card.viable{border-left-color:var(--green)}.result-card.viable_with_conditions{border-left-color:var(--amber)}.result-card.not_viable{border-left-color:var(--red)}.badge{display:inline-block;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;padding:4px 10px;border-radius:999px}.badge.viable{background:#e5f3ec;color:var(--green)}.badge.viable_with_conditions{background:#faf1de;color:var(--amber)}.badge.not_viable{background:#f8e9e9;color:var(--red)}.badge.vat-zero_rated{background:#e5f3ec;color:var(--green)}.badge.vat-exempt{background:#eef0f4;color:var(--muted)}.badge.vat-standard_rated{background:#eaf0fb;color:var(--navy)}.badge.vat-out_of_scope{background:#eef0f4;color:var(--muted)}.badge.vat-context_dependent{background:#faf1de;color:var(--amber)}.rate-pill{font-size:14px;font-weight:700;color:var(--navy)}.reasoning-list{list-style:none;margin:14px 0 0;padding:0}.reasoning-list li{font-size:13.5px;color:var(--text);padding:8px 0;border-top:1px solid var(--border)}.reasoning-list li:first-child{border-top:none}.citation{display:block;font-size:11.5px;color:var(--muted);margin-top:3px}.citation .fc-flag{color:var(--amber);font-weight:600}.risk-box,.tradeoff-box{margin-top:14px;padding:12px 14px;border-radius:8px;font-size:13px}.risk-box{background:#fdf2f2;color:#7a2c2c}.tradeoff-box{background:#f6f4ec;color:#5c4a12}.risk-box ul,.tradeoff-box ul{margin:4px 0 0;padding-left:18px}.note-card{border-left:4px solid var(--navy-2)}.disclaimer{font-size:12px;color:var(--muted);border-top:1px solid var(--border);padding-top:16px;margin-top:8px}.summary-strip{display:flex;gap:24px;flex-wrap:wrap;margin-bottom:8px}.summary-item{font-size:13px}.summary-item .n{font-weight:700;color:var(--navy);display:block;font-size:18px}.error-box{background:#f8e9e9;color:#7a2c2c;padding:14px 16px;border-radius:8px;font-size:14px;margin-bottom:16px}footer.site-footer{text-align:center;color:var(--muted);font-size:12px;margin-top:48px}