:root{color-scheme:light;--ink:#172c35;--muted:#556b73;--green:#12675a;--line:#d7e1df;--paper:#f3f6f3;font-family:system-ui,-apple-system,Segoe UI,sans-serif;color:var(--ink);background:var(--paper)}
*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0}header{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1.5rem max(5vw,1rem);border-bottom:1px solid var(--line);background:#fff}a{color:var(--green)}.brand{text-decoration:none;font-weight:800;font-size:1.4rem;color:var(--ink)}.brand span{display:block;font-size:.65rem;letter-spacing:.18em;color:var(--green)}main{max-width:1050px;margin:3.5rem auto;padding:0 1.25rem}.eyebrow{letter-spacing:.16em;font-size:.72rem;font-weight:800;color:var(--green)}h1{font-size:clamp(2.4rem,6vw,4rem);line-height:1.08;letter-spacing:-.045em;margin:1rem 0}h2{font-size:1.2rem;margin-top:0}h3{font-size:1rem;margin-top:2rem}.intro{max-width:640px;color:var(--muted);line-height:1.7}p{line-height:1.6}section{background:#fff;padding:1.7rem;border:1px solid var(--line);border-radius:12px;margin-top:1.25rem}.grid{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}.identity{display:flex;align-items:center;justify-content:space-between;gap:1rem}form{display:grid;gap:.65rem}label{font-weight:600;font-size:.85rem;display:block}input,select,button,.button{font:inherit;border-radius:6px;padding:.7rem .85rem;min-height:44px}input,select{border:1px solid #9fb3af;background:#fff;color:var(--ink);width:100%;margin-top:.25rem}button,.button{border:1px solid var(--green);background:var(--green);color:#fff;cursor:pointer;text-decoration:none;display:inline-block;width:fit-content;font-weight:600}button:hover,.button:hover{filter:brightness(.9)}button:disabled{opacity:.5;cursor:wait}.secondary{background:#fff;color:var(--green)}.danger{background:#fff;color:#98372a;border-color:#98372a}.hint{font-size:.83rem;color:var(--muted)}#message{position:sticky;top:.5rem;z-index:1;background:#e1efe9;border:1px solid #9ec8b6;padding:.9rem 1.2rem;border-radius:8px;font-size:.9rem}#message.error{background:#fff0e9;border-color:#e9b298;color:#782d20}.table-scroll{overflow:auto}table{border-collapse:collapse;width:100%;font-size:.85rem}th,td{text-align:left;border-bottom:1px solid var(--line);padding:.75rem .5rem;min-width:100px}th{color:var(--muted)}td select{min-width:140px}li{padding:.6rem 0;line-height:1.6;overflow-wrap:anywhere}li button{margin-left:1rem}#invitation-result{padding:1rem;background:var(--paper);margin-top:1rem}footer{padding:2rem;text-align:center;color:var(--muted);font-size:.8rem}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #d3902f;outline-offset:3px}@media(max-width:650px){.grid{grid-template-columns:1fr;gap:0}header{font-size:.8rem}main{margin-top:2rem}section{padding:1.15rem}}