/* System fonts keep this navigation prototype independent of external services. */
:root{font-family:'DM Sans',system-ui,sans-serif;color:#16343f;background:#f3f6f7;font-size:16px;--ink:#16343f;--muted:#536d77;--line:#d9e3e6;--teal:#007b70}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}a{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #128eaa;outline-offset:4px}button{transition:background .15s,transform .15s}button:hover:not(:disabled){filter:brightness(.97)}.top{height:88px;background:#fff;border-bottom:1px solid var(--line);padding:0 4%;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;text-decoration:none;font-size:1.55rem;letter-spacing:-1px;font-weight:700}.brand-dot{color:var(--teal)}.mark{display:grid;place-items:center;width:36px;height:36px;background:var(--ink);color:#70e3c7;font-size:1.25rem;margin-right:12px;border-radius:8px}.prototype{font-size:.8rem;background:#f0f4f5;padding:7px 12px;border-radius:20px;color:var(--muted)}.shell{max-width:1520px;margin:auto;display:grid;grid-template-columns:230px minmax(0,1fr);min-height:calc(100vh - 150px)}aside{padding:36px 22px;border-right:1px solid var(--line)}.eyebrow{font-size:.75rem;letter-spacing:.11em;font-weight:700;color:var(--muted);margin:0 0 18px}.navitem{background:transparent;border:0;border-radius:8px;display:flex;align-items:center;gap:13px;width:100%;padding:13px 14px;text-align:left;font-size:.9rem;color:var(--muted);margin:4px 0}.navitem.active{background:#dceeea;color:#075e56;font-weight:600}.navitem span{font-size:1.25rem}.aside-note{margin:90px 14px 20px}.aside-note p{font-size:1.5rem;line-height:1.3;font-weight:500}.aside-note small{font-size:.85rem;line-height:1.6;color:var(--muted)}.mini-rule{display:block;height:3px;width:28px;background:#008776}main{padding:40px clamp(20px,4vw,60px);min-width:0}h1{font-size:clamp(1.8rem,3vw,2.4rem);letter-spacing:-.04em;line-height:1.15;font-weight:600;margin:0 0 12px}h2{font-size:1.2rem;line-height:1.4;letter-spacing:-.02em;margin:0 0 8px}h3{font-size:1rem;margin:0 0 8px}p{line-height:1.6}.subtitle{color:var(--muted);margin:0 0 28px;max-width:780px}.guide-banner{background:#123b47;color:#fff;border-radius:12px;padding:25px 28px;display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:36px}.guide-banner p{color:#bed1d6;margin:6px 0 0;font-size:.9rem}.guide-banner h2{margin:0}.btn{padding:11px 18px;border:1px solid var(--line);border-radius:7px;background:#fff;color:var(--ink);display:inline-flex;align-items:center;justify-content:center;gap:9px;text-decoration:none;min-height:44px;font-size:.9rem;font-weight:600}.btn.primary{background:var(--teal);color:#fff;border-color:var(--teal)}.btn.mint{background:#88e5cf;color:#103e38;border:0;white-space:nowrap}.btn.ghost{background:transparent;border-color:transparent;color:var(--muted);padding-left:0}.modules{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.module{min-width:0;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}.module-head{padding:24px 20px 20px;border-bottom:1px solid var(--line)}.module-icon{display:inline-grid;place-items:center;background:#e4f1ef;color:#07685f;border-radius:8px;width:40px;height:40px;margin-bottom:18px;font-size:1.3rem}.module:nth-child(2) .module-icon{background:#edf0fa;color:#415dad}.module:nth-child(3) .module-icon{background:#fcf0dc;color:#926321}.module-head p{font-size:.85rem;color:var(--muted);margin:0}.tool{display:flex;align-items:center;gap:10px;border:0;background:#fff;border-bottom:1px solid #edf1f2;padding:15px 17px;width:100%;text-align:left;min-height:62px;color:var(--ink);font-size:.9rem}.tool:last-child{border-bottom:0}.tool:hover{background:#f0f8f6}.number{font-size:.75rem;color:#637f88;flex-shrink:0;font-variant-numeric:tabular-nums}.tool small{display:block;font-size:.75rem;color:var(--muted);margin-top:3px}.arrow{margin-left:auto;color:#718b93}.footnote{font-size:.8rem;color:var(--muted);margin-top:24px}.choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.choice{border:1px solid var(--line);background:#fff;border-radius:10px;padding:23px;text-align:left;display:flex;gap:18px;align-items:flex-start;color:var(--ink)}.choice:hover{border-color:#61a799}.choice .symbol{font-size:1.5rem;color:var(--teal)}.choice strong{display:block;margin:0 0 8px;font-weight:600}.choice small{font-size:.9rem;line-height:1.5;color:var(--muted);display:block}.stepper{display:flex;gap:0;list-style:none;padding:0;margin:6px 0 36px;flex-wrap:wrap}.stepper li{display:flex;align-items:center;gap:8px;font-size:.8rem;color:var(--muted);padding:6px 20px 6px 0}.stepper li span{width:25px;height:25px;border-radius:50%;background:#e3e9eb;display:grid;place-items:center;font-size:.75rem}.stepper li.current{color:var(--teal);font-weight:700}.stepper li.current span{background:var(--teal);color:#fff}.stepper li.done span{background:#dceeea;color:#075e56}.workspace{background:#fff;border:1px solid var(--line);border-radius:12px;padding:28px}.workspace p{color:var(--muted);margin:7px 0 20px}.actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:24px}.actions .push{margin-left:auto}.upload{border:1.5px dashed #a4bebf;border-radius:10px;padding:30px;display:flex;align-items:center;justify-content:space-between;gap:20px;background:#f8fbfa;margin-top:20px}.upload p{margin:6px 0 0;font-size:.85rem}.upload label{cursor:pointer}.actual-file{display:block;margin-top:18px;font-size:.85rem;max-width:100%}.tag{display:inline-block;font-size:.75rem;font-weight:600;letter-spacing:.02em;padding:5px 9px;border-radius:5px;background:#e8f3f0;color:#176859}.tag.demo{background:#fff0ce;color:#805708}.notice{padding:16px 18px;background:#eff6f7;border-left:3px solid #288299;border-radius:4px;margin:20px 0;font-size:.9rem;line-height:1.6;color:#244e5b}.notice.warn{background:#fff8e6;border-color:#b68017;color:#705515}.notice.error{background:#fff0ef;border-color:#bc493f;color:#8a2f28}.fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:20px 0}.field{display:flex;flex-direction:column;gap:7px;font-size:.85rem;font-weight:500;min-width:0}.field input,.field select{width:100%;min-width:0;border:1px solid #bfcfd3;border-radius:6px;background:#fff;color:var(--ink);padding:11px;font-size:1rem}.field small{color:var(--muted);font-weight:400}.table-wrap{overflow:auto;max-height:380px;border:1px solid var(--line);border-radius:7px;margin-top:16px}table{border-collapse:collapse;width:100%;font-size:.85rem;white-space:nowrap}th,td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left}th{background:#f1f6f6;font-weight:600;position:sticky;top:0}tr:last-child td{border-bottom:0}.result-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px;margin:22px 0}.stat{padding:20px;background:#f2f7f7;border-radius:8px}.stat strong{display:block;font-size:1.7rem;font-weight:500;margin:8px 0}.stat small{color:var(--muted)}.report-item{border-bottom:1px solid var(--line);padding:18px 0}.report-item p{margin:5px 0 0}.report-item:last-child{border:0}.tabs{display:flex;gap:8px;margin:24px 0 20px;flex-wrap:wrap}.tabs button{border:0;background:#e7edef;border-radius:6px;padding:10px 15px;color:var(--muted);font-size:.9rem}.tabs button[aria-pressed=true]{background:var(--ink);color:white}.empty{padding:35px;text-align:center;background:#fff;border:1px solid var(--line);border-radius:10px}.empty p{color:var(--muted)}footer{border-top:1px solid var(--line);padding:20px 4%;font-size:.75rem;color:var(--muted);display:flex;justify-content:space-between;gap:16px}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.route-summary{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:22px 0;font-size:.85rem}.route-summary span{background:#e8f0f1;padding:8px 12px;border-radius:6px}.check-list{padding-left:20px;color:var(--muted);font-size:.9rem;line-height:1.9}code{font-size:.85rem}@media(max-width:1150px){.shell{grid-template-columns:185px minmax(0,1fr)}aside{padding:32px 12px}main{padding:30px 25px}.modules{gap:12px}.module-head{padding:20px 14px}.tool{padding:14px 12px}.guide-banner{padding:24px}}@media(max-width:850px){.shell{display:block}aside{border-right:0;border-bottom:1px solid var(--line);padding:12px 20px}aside .eyebrow,.aside-note{display:none}nav{display:flex;gap:12px}.navitem{width:auto}.modules{grid-template-columns:1fr}.module-head{display:grid;grid-template-columns:40px 1fr;column-gap:14px;padding:20px}.module-icon{grid-row:span 2;margin:0}.module-head h2{margin:0}.choices{grid-template-columns:1fr}.top{height:76px}.guide-banner{align-items:flex-start}}@media(max-width:520px){main{padding:26px 16px}.top{padding:14px 16px;gap:8px}.brand{font-size:1.25rem}.prototype{font-size:.7rem;padding:5px 8px;max-width:95px;text-align:center}.mark{width:30px;height:30px;margin-right:7px}.guide-banner,.upload{flex-direction:column;align-items:stretch;gap:18px}.workspace{padding:20px 16px}.fields,.result-grid{grid-template-columns:1fr}.stepper{margin-bottom:24px}.stepper li{padding-right:12px}.actions .push{margin-left:0}.actions .btn{flex:1}.choice{padding:20px 16px}footer{flex-direction:column}.upload{padding:22px 18px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}@media print{aside,.top,.actions,.tabs,footer,.stepper{display:none}.shell{display:block}main{padding:0}.workspace{border:0}.notice.warn{display:block}}

a.tool,a.choice{text-decoration:none}.related{margin-top:32px}.related-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.related-links .tool{border:1px solid var(--line);border-radius:8px}svg{flex-shrink:0}.upload .btn{flex-shrink:0}[hidden]{display:none!important}@media(max-width:650px){.related-links{grid-template-columns:1fr}.upload .btn{flex-shrink:1}}

.tool .tag{margin-top:7px;font-size:.75rem}.available-panel{padding:26px;background:#e3f2ee;border:1px solid #a7cfc1;border-radius:12px;margin-bottom:24px}.available-panel h2{margin-top:14px}.available-panel p{color:var(--muted)}.available-panel small{display:block;line-height:1.6;margin-top:14px;color:var(--muted)}