:root{--bg:#f4f7fb;--surface:#ffffff;--text:#102132;--muted:#4a6076;--primary:#0f5fa9;--primary-hover:#0c4d89;--danger:#b00020;--border:#d9e3ee;--ok-bg:#e7f8ef;--ok-text:#0d6a3d}*,:after,:before{box-sizing:border-box}body,html{margin:0;padding:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.page-shell{min-height:100vh;display:grid;grid-template-rows:auto 1fr auto}.container{width:min(920px,calc(100% - 2rem));margin:0 auto}.header{padding:1.25rem 0;border-bottom:1px solid var(--border);background:var(--surface)}.brand{font-weight:700;font-size:1rem}.main{padding:2rem 0 3rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:1.5rem;box-shadow:0 8px 22px rgba(20,34,48,.06)}h1{margin-top:0;margin-bottom:.65rem;font-size:clamp(1.5rem,2vw,2rem)}h2{margin-top:1.4rem;font-size:1.15rem}li,p{line-height:1.6;color:var(--muted)}ul{padding-left:1.1rem}.links-list{display:grid;grid-gap:.85rem;gap:.85rem;margin-top:1.25rem}.link-card{border:1px solid var(--border);border-radius:12px;padding:.95rem 1rem;background:#fbfdff}.form-grid{display:grid;grid-gap:1rem;gap:1rem}label{display:grid;grid-gap:.42rem;gap:.42rem;font-weight:600;color:var(--text)}input,textarea{width:100%;border-radius:10px;border:1px solid var(--border);padding:.68rem .75rem;font:inherit;color:var(--text);background:#fff}textarea{min-height:112px;resize:vertical}input:focus,textarea:focus{outline:2px solid #c9ddf7;border-color:#9cc4ef}.checkbox-row{display:flex;align-items:flex-start;gap:.65rem}.checkbox-row input{width:auto;margin-top:.2rem}.error{color:var(--danger);margin:-.25rem 0 0;font-size:.93rem}.status-ok{border:1px solid #b8ebce;background:var(--ok-bg);color:var(--ok-text);border-radius:10px;padding:.7rem .8rem}.status-error{border:1px solid #f0bec8;background:#fff0f4;color:var(--danger);border-radius:10px;padding:.7rem .8rem}button{border:none;border-radius:10px;background:var(--primary);color:#fff;font-weight:600;padding:.74rem 1rem;cursor:pointer}button:hover{background:var(--primary-hover)}button:disabled{opacity:.72;cursor:not-allowed}.footer{border-top:1px solid var(--border);background:var(--surface);padding:1rem 0;color:var(--muted);font-size:.92rem}