.auth-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-soft);width:100%;max-width:420px;margin:0 auto;padding:28px 26px 30px}.auth-intro{color:var(--text-secondary);margin:0 0 22px;font-size:15px;line-height:1.55}.auth-error{border:1px solid rgb(var(--accent-rgb)/.35);border-radius:var(--border-radius-sm);background:rgb(var(--accent-rgb)/.08);color:var(--text-primary);margin-bottom:18px;padding:11px 13px;font-size:14px;line-height:1.5}.auth-error:empty{display:none}.auth-sep{color:var(--text-muted);text-align:center;margin:18px 0 12px;font-size:13px}.oauth-list{list-style:none;display:flex;flex-direction:column;gap:10px;margin:0;padding:0}.oauth-btn{display:flex;border:1px solid var(--border-color-field);border-radius:var(--border-radius-sm);color:var(--text-primary);cursor:pointer;font-family:var(--font-heading);text-align:center;text-decoration:none;background:#fff;justify-content:center;align-items: center;gap:10px;width:100%;padding:11px 18px;font-size:14px;font-weight:700}.oauth-btn svg{flex:none;width:18px;height:18px}.oauth-btn:hover{background:var(--bg-card-hover)}.oauth-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}@media screen and (max-width:600px){.auth-card{padding:22px 18px 24px}}.signin-popover{border:1px solid var(--border-color);border-radius:var(--border-radius-lg);background:var(--bg-card);color:var(--text-primary);box-shadow:var(--shadow-soft);width:min(420px,100vw - 32px);max-height:calc(100vh - 32px);margin:auto;padding:26px 26px 28px;inset:0}.signin-popover::backdrop{background:#00000073}.signin-popover h2{font-family:var(--font-heading);margin:0 0 10px;font-size:20px}.signin-popover .account-gate-body{color:var(--text-secondary);margin:0 0 20px;font-size:15px;line-height:1.55}.signin-popover-dismiss{display:flex;justify-content:flex-end;margin:-10px -8px 0 0}.signin-popover-dismiss button{border-radius:var(--border-radius-sm);color:var(--text-secondary);cursor:pointer;background:0 0;border:none;padding:4px 8px;font-size:22px;line-height:1}.signin-popover-dismiss button:hover{color:var(--text-primary)}.signin-popover-dismiss button:focus-visible{color:var(--text-primary)}