add-feed dialog{width:min(440px,90vw);padding:28px;background:var(--surface-2);border:1px solid var(--outline);border-radius:var(--radius-xl);color:var(--on-surface);box-shadow:0 30px 70px #0000008c}add-feed dialog::backdrop{background:#0009;backdrop-filter:blur(3px)}add-feed dialog-header{display:flex;align-items:center;gap:10px;color:var(--primary)}add-feed dialog-header m-symbol{font-size:26px}add-feed h2{margin:0;font-size:20px;font-weight:600;letter-spacing:-.02em}add-feed p{margin:10px 0 18px;color:var(--muted);font-size:13px;line-height:1.5}add-feed input{width:100%;padding:15px 16px;background:var(--surface-1);border:1px solid var(--outline);border-radius:var(--radius-m);color:var(--on-surface);font:inherit;outline:none}add-feed input:focus{border-color:var(--primary)}add-feed error-note{display:block;min-height:18px;padding:8px 2px 0;color:var(--danger);font-size:12px;line-height:1.4}add-feed dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:12px}add-feed dialog-actions button{padding:13px 22px;border-radius:var(--radius-l);font-weight:600}add-feed button[part=cancel]{color:var(--on-variant)}add-feed button[part=cancel]:hover{background:var(--surface-3)}add-feed button[part=submit]{background:var(--primary);color:var(--on-primary)}